Aci Slab Design

At the location of the splice the ratio of area provided to area required is greater than 2. 5 (ACI, 2005). Economic in the range 8 to 12 m. Analysis and Design of Slabs Two Way. An edition of Slab design in accordance with ACI 318-77 (1978) Slab design in accordance with ACI 318-77 supplement to Design handbook in accordance with the strength design method by American Concrete Institute. for transferring loads across, and managing stresses within,. Summary: Design the single-story building with the plan shown below considering the loads to be distributed uniformly over the slab area. o ACI (American Concrete Institute) Code emphasizes: (a) strength provisions (b) serviceability provisions (deflections, crack widths) (c) ductility provisions (stress redistribution, ductile failure) Design factors o 1956 – A. For Joist depth determination, waffle slabs are considered as flat slab (ACI 13. Neglect compression reinforcement. percentage of the slab thickness (or concrete volume). Slab Punching Design Excel Sheet According ACI 318-08 Flat slabs that are supported directly on columns, without beams between the columns, generally transfer a significant concentrated load that affects a relatively small area. note that thin unbonded toppings placed on plastic. zambia concrete pump design. (assuming cover 3/4 in). ACI Committees 360, Design of Slabs on Ground, and 302, Construction of Concrete Floors, have been at the forefront of the effort to provide the industry with the tools to produce slabs that are flat and level, with a densely finished surface, stable joints, and limited cracking while being capable of supporting applied loads. L 2 /L 1 = 120%, L 2 /L 3 = 120 % O. Beginning in 1956 with the introduction of ultimate strength design, each new code offered better uti­ lization of high-strength reinforcement and the compressive strength of the con­ crete itself. 11-15) ⇒ s = A v x f y x d / V s where A v = cross-sectional area of each stirrup has crossed the crack V u 45 0 Number of stirrups crossing the crack, n = d / s d s A v = 2 times the cross-sectional area of the stirrup bar. The following sequence of steps should be followed:. The most common method used in North America is that established by ACI Recommended Practice 211. CE 403, Fall 2015 Slab Design Example 1 / 5 (ACI 318‐11 Referenced) Design a one‐way slab for an interior bay of a multi‐story office building using the information specified below. The second important thing to understand about ACI 302. Flat Slab Analysis and Design designs beamless concrete slab floors (flat slab or waffle slab) in accordance with ACI 318. 1R-04, “Guide for Concrete Floor and Slab Construction,” pub-. Essential spreadsheet for two way slab design. The thickness of equivalent flat slab is taken from table 9. Design of Slabs-on-Ground Reported by ACI Committee 360 ACI 360R-06 This document presents information on the design of slabs-on-ground, primarily industrial floors. The Slab design uses 3-4 node plate/shell finite elements. For anchorage design in low seismic zone (ACI 318-08 SDC concrete frame design > display design/np Select longitudinal reinforcement For beam, for both upper and lower face, select max value & for column select max value and calculate No. 3(d) and 17. Design and Construction of Drilled Piers Reported by ACI Committee 336 ACI 336. The code covers a number of methods to design a flat slab system. Significant Test Findings and Design Concepts. With the free version you will have to wait 30 seconds for advertisements. The recommendations do not consider connections with slab shear reinforcement, slab-wall connections, precast or prestressed connections, or slabs on grade. ), which is a major change of how the document was organized in earlier editions. Background information on the design theories is followed by discussion of the soil support system, loadings, and types of slabs. Calculate slab moments using ACI factors:. The above referenced Excel Software Tool is provided for the design of Reinforced Concrete (RC) Slabs, with or without beams, using the Direct Design Method per American Concrete Institute (ACI) 318-14 criteria and methodology. eesti nbsp 14 Oct 2014 ACI 318 provides two alternative methods for designing two way slabs for concrete The equivalent frame method EFM and the direct design nbsp 14 Oct 2014 Introducing voids to the soffit of a slab reduces dead weight and increases the efficiency of the concrete section. Design the slab following the provisions of the ACI code. The service live load is 100 psf and 4000 psi concrete is specified for use with steel with a yield stress equal to 60000 psi. A typical rectangular tank for example with open top might have five such meshes, one for each wall and one for the base slab. Normal-weight aggregate concrete is specified with a density of 145 pcf. Assume f'c = 4000 psi and fy = 60,000 psi. 01D) – by Robert G. The most common method used in North America is that established by ACI Recommended Practice 211. 5(a) of ACI 318/318R-97 Example-1: One-way simply supported slab, Span length, L= 10 ft. Slab: 89,100 lbs. This function is minimized using the harmony search algorithm, subject to design constraints. So show me the. 4—Design theories for slabs-on-ground. Two-Way Slab Analysis and Design ACI 318 states that a slab system shall be designed by any procedure satisfying equilibrium and geometric compatibility, provided that strength and serviceability criteria are satisfied. ( * Denotes a required field). b) Based on the components of slab. Use Class S concrete (f c ́ = 4. 1R-03 Part 2—ACI 228. The result is a lightly reinforced slab designed to offset the effects of temperature and shrinkage of the concrete. For slabs with light loads, as those for homes, include wire mesh midway up the thickness of the slab to reduce cracking. Get the free version now Advertise with RCsolver. Intermediate values calculated include slab weight, service and factored loads, shear, minimum slab thickness required for deflection, shear and flexure, required areas of flexural reinforcement, and maximum and minimum permissible bar spacings. addresses the design and construction of jointing sys­ tems for concrete street pavements. ADOSS performs the equivalent frame method of design and uses ACI 318 standards, which are the governing rules to design by. Quite popular and widely used among these methods is one using 'Moment Coefficient' based on the 1963 ACI Code, for the special case of two-way slabs supported on four sides by relatively stiff beams. The axial force, moments and shears for a partic-ular strip are recovered from the analysis (on the basis of the Wood -Armer tech-. PCA Notes on ACI 318-11 Building Code: Media Type: PDF PCA Notes on ACI 318-11 Building Code The emphasis is placed on “how-to-use” the code incorporating discussions behind the code provisions and fully worked design solutions to real world problems. * the design moments in the edge panel may have to be adjusted according to 3. Economic in the range 8 to 12 m. A reinforced concrete slab is built integrally with its supports and consists of two equal spans, each with a clear span of 15 ft. Here, we have tried to gather various reading materials available in the web about flat slab floor system in one place. 1963 ACI Code is applicable to two-way slabs supported on four sides of each slab panel by walls, steel beams relatively deep, stiff, edge beams (h = 3hf). CHAPTER EIGHT DESIGN OF ONE-WAY SLABS 7 8. • ACI 2010 for slab-on-ground design wherein round and square dowels need be 10, 13, and 15 in. automatic generation of a step by step design calculation. DESIGN OF THE FLAT SLAB STRUCTURES. The Slab design uses 3-4 node plate/shell finite elements. ACI 360R-06 Design of Concrete Slabs on Ground will be available from ACI in November, 2006. According to it, the specified thickness values are as follows: a. 27M - Lake. 274 SP edn, American Concrete Institute, ACI Special Publication, no. Flat plate slab is that in which slab is directly supported on columns without column capital, drop panel or beams. Slab bottom steel in the direction of cantilever is # 13 @ 190 mm. The report addresses the planning, design, and detailing of the slabs. Fabricate units according to approved shop drawings and approved design calculations. A civil engineer must know all the aspects regarding the flat floor system. Design methods will be based on ACI 360 and presented for un-reinforced concrete, reinforced (steel, fibers) concrete, and fiber-reinforced concrete slabs-on-ground, followed by information on shrinkage and curling. zambia concrete pump design. Summary: Design the single-story building with the plan shown below considering the loads to be distributed uniformly over the slab area. Two Way Slab Problem Statement: Use the ACI 318 Direct Design Method to design an interior bay of a flat plate slab system of multi bay building. Design and detailing of the following structural members are covered for buildings assigned to Seismic Design Categories A through F with emphasis placed on the revisions made in ACI 318-19: One-way slabs. set) verifies that a concrete mixture meets design re-quirements prior to use in construction. Use for the slab, 5000 psi for the precast beams, and Use load factors from ACI Code Section 9. 901(d)(1) Name of Legally Binding Document: ACI 318: Building Code Requirements for Reinforced Concrete. This design guide and the corresponding calculations are based on the requirements of ACI 318 and strength design method where the capacity of the beam is designed to support factored loads. A concrete floor slab is the table top on which an operation performs and as such, it is often the greatest source of maintenance in busy warehouse and industrial environments. 1R-04, Guide for Concrete Floor and Slab Construction c. • Shells and Folded Plates : Chapter 19 → ACI 318. : Thou Shalt Not Curl Nor Crack. 3 permits the use of the following approximate moments and shears for design of continuous beams and one-way slabs, provided:. Upgrade to the ad free version for only $150. The use of machine learning seems to be a great way to improve the accuracy of empirical equations currently used in this field. 2), only check wall flexural capacities are adequate. Reinforcing steel for slabs is primarily parallel to slab. Interior Bay Dimensions 20' 24'. 4 Slabs on ground If part of seismic force resisting system. Advantages and disadvantages of each of these slab designs are provided, including the ability of some slab designs to minimize cracking and curling more than others. Otherwise, the standard of prac-. A v = 3 times the cross-sectional area. The most common method used in North America is that established by ACI Recommended Practice 211. 1 gives the minimum one way slab thickness. Building Code Requirements for Structural Concrete (ACI 318M-11) Design of Slender Columns by ACI 318 David Darwin Vietnam Institute for Building Science and Technology (IBST) Hanoi and Ho Chi Minh City December 12-16, 2011. 1—Materials 2. Concrete Craftsman Series - Slabs on Grade (Paperback). Flat Slab Analysis and Design designs beamless concrete slab floors (flat slab or waffle slab) in accordance with ACI 318. The minimum-reinforcement percentage, which is between 0. 3R-93 (Reapproved 2006) Covers the design and construction of foundation piers 30 in. The current language of ACI 318-14, 2 Sections 1. All beans are 500 mm wide and 600 mm deep. Required reinforcement is displayed in a very easy to appreciate way. It is a method in accordance with ACI 360 Design of Slabs-on-Ground. 1R-899 Recommendations for Design of Slab-Column Connections in Monolithic Reinforced Concrete Structures, to address this need. The modification is. 639 between columns R2, R5 and t, u; R10, R13, and t, u; and R17, R20, and t, u 250 lbs per sq ft Slab El. to ACI 318-14 (US code) in RFEM and RF-CONCRETE Surfaces / Deflect. Reinforced Concrete Beams: Size Selection: Determines the sizes of rectangular beams to satisfy the flexural requirements, shear requirements and minimum thickness limits of ACI 318-89. hmin = (inner perimeter of slab panel)/180 ≥ 90 mm. doc Author: pezeshk Created Date: 1/24/2007 8:18:00 AM. Shear Design Page 2 of 6 V s = A v x f y x n ⇒ V s = A v x f y x d/s (ACI Eq. Design of a one-way slab Step-1 Selection of thickness, h ACI 318 -11-Building Code Requirements for Structural Concrete- by American Concrete Institute, ACI. Design methods are given for unreinforced concrete, reinforced concrete, shrinkage-compensating concrete, post-tensioned concrete, fiber-reinforced concrete slabs-on-ground, and slabs-on-ground in refrigerated. Select the trial dimensions. The slab has to carry a distributed permanent action of 1. One Way Slab Design Example: A reinforced concrete slab is built integrally with its supports and consists of equal span of 15 ft. DESIGN OF SLABS ON GRADE ACI committee was specifically charged to cover design. For slabs with light loads, as those for homes, include wire mesh midway up the thickness of the slab to reduce cracking. With the free version you will have to wait 30 seconds for advertisements. Description of Software Tool: This Excel Software Tool is provided for the design of American Concrete Institute (ACI) Building Code Requirements for Structural Concrete (318-11) design of Reinforced Concrete (RC) Special Moment Resisting Frame (SMRF) elements and connections. Design Considerations For One Way Slab. 1 is that it is intended as a how-to guide for contractors and to help them understand the design provisions that are laid out in ACI 360R-10, Design of Slabs on Ground. Concrete floor slabs may be in situ or prefabricated. LCI, the ratio of Qk/Gk does not exceed 1. With our Flat Slab Analysis and Design program, you can analyze and design beamless concrete waffle slab or flat slab floors easily and precisely. 2) (ACI 318-11) These values are applicable for normal loading conditions and for slabs not supporting or. Significant Test Findings and Design Concepts. input cells automatically cross out invalid data 3. 1R-04, Guide for Concrete Floor and Slab Construction. Reinforced Concrete Beams: Size Selection: Determines the sizes of rectangular beams to satisfy the flexural requirements, shear requirements and minimum thickness limits of ACI 318-89. It addresses the planning, design, and detailing of slabs. Fabricate units according to approved shop drawings and approved design calculations. Background information on design theories is followed by discussion of the types of slabs, soil-support systems, loadings, and jointing. note that thin unbonded toppings placed on plastic. This spreadsheet is an extremely efficient tool and allows to quickly design two way slabs to aci code. How much reinforcing was placed in the concrete and and at what location within the slab? 5. Part 1—ACI 117-10 to ACI 228. 5m 3 (2 cu yd) of concrete from 1. 17 ¥ B Ö′ where f’c is the specified compressive strength in psi (MPa), ρ is the reinforcement ratio, and d is the effective depth. Packard (Portland Cement Association, 1976) “Concrete Floor Slabs on Grade Subjected to Heavy Loads” Army Technical Manual TM 5-809-12, Air Force Manual AFM 88-3. Design methods are given for unreinforced concrete, reinforced concrete, shrinkage-compensating concrete, post-tensioned concrete, fiber-reinforced concrete slabs-on-ground, and slabs-on-ground in refrigerated. EXAMPLE C1. 1R-04, Guide for Concrete Floor and Slab Construction c. ACI 318 sets out the principles of design for slab shear reinforcement and makes specific reference to stirrups and headed studs. eesti nbsp 14 Oct 2014 ACI 318 provides two alternative methods for designing two way slabs for concrete The equivalent frame method EFM and the direct design nbsp 14 Oct 2014 Introducing voids to the soffit of a slab reduces dead weight and increases the efficiency of the concrete section. Under no circumstances should fluid in radiant slabs be operated at those design conditions exceeding the concrete codes and standards until the concrete has obtained its design strength. for footing. ment allowing up to 80 ksi reinforcement. The strength will fall around 30 N/mm 2 (4500 psi). Flat plate slab is that in which slab is directly supported on columns without column capital, drop panel or beams. Refer to ACI 223 for special procedures recommended for the design and construction of shrinkage-compensating concrete slabs on. Select the trial dimensions. Use for the slab, 5000 psi for the precast beams, and Use load factors from ACI Code Section 9. Any mix design procedure will provide a first approximation of the proportions and must be checked by trial batches. Note that ACI 360R presents information on the design of slabs-on-ground, primarily industrial floors and the slabs adjacent to them. What is the definition of a "crack"? Almost all concrete slabs have cracks. Slab On Grade Etabs. The ACI Reinforced Concrete Design Manual provides many design examples of various reinforced concrete members based on a fictitious seven-story building. Section 2: Concrete Deck Slabs on I-Girders, U-Beams, Spread Box Beams, Spread Slab Beams, Steel Plate Girders, and Steel Tub Girders Anchor: #i1350427 Materials. 639 (exception noted below) 400 lbs per sq ft Slab El. 9 Moment Coefficient Method. nice user-friendly interface 2. DESIGN OF SLABS ON GRADE ACI committee was specifically charged to cover design. This method was provided in the American Concrete Institute (ACI) in 1963 to design two-way slabs carried by steel beams, deep beam, or walls. LCI, the ratio of Qk/Gk does not exceed 1. Refer to ACI 223 for special procedures recommended for the design and construction of shrinkage-compensating concrete slabs on. (760 mm) in diameter or larger made by excavating a hole in the earth and then filling it with concrete. ( * Denotes a required field). ACI Committees 360, Design of Slabs on Ground, and 302, Construction of Concrete Floors, have been at the forefront of the effort to provide the industry with the tools to produce slabs that are flat and level, with a densely finished surface, stable joints, and limited cracking while being capable of supporting applied loads. Design of Slabs-on-Ground Reported by ACI Committee 360 ACI 360R-06 This document presents information on the design of slabs-on-ground, primarily industrial floors. Floor Classifications Table 1 describes the nine classes of concrete floors according to ACI 302, Guide to Concrete Floor and Slab Construction. and not suited to design practice. Description of Software Tool: This Excel Software Tool is provided for the design of American Concrete Institute (ACI) Building Code Requirements for Structural Concrete (318-11) design of Reinforced Concrete (RC) Special Moment Resisting Frame (SMRF) elements and connections. All beans are 500 mm wide and 600 mm deep. MidWest Plan Service (Koenig & Runestad, 1998, 2005) has used a. Background information on design theories is followed by discussion of the types of slabs, soil-support systems, loadings, and jointing. The most common method used in North America is that established by ACI Recommended Practice 211. design concrete pavements for any set of climate, traffic, subgrade/subbase layers, and material inputs…This methodology designs the concrete pavement thickness by optimizing the slab size to suit a given geometry of truck wheel and axle spacing. Background information on design theories is followed by discussion of the types of slabs, soil-support systems, loadings, and jointing. Smaller-diameter piers have been used in noncollapsing soils. FIBERSAVE is based on accepted design procedures per ACI or TR34 and is available to you online. Anchoring to relatively thin concrete slabs introduces many unique challenges, so testing was bound to reveal some unique findings. He received his BS and MS in civil engineering from the Technical University of Gdansk, Poland, and his PhD in civil engineering from Virginia Tech. MidWest Plan Service (Koenig & Runestad, 1998, 2005) has used a. Design a one-way slab for the inside of a building using the span, loads, and other data given in Figure 1. 7 Modified Westergaard design method for patch loads. This document is published by American Concrete Institute (ACI) Standard Details This guide assists practitioners in understanding: 1) twisting moments in two-way slabs, when twisting moments are an essential consideration; 2) methods that can be used to account for twisting moments in design; and 3) the options available for each method of the. CE 403, Fall 2015 Slab Design Example 1 / 5 (ACI 318‐11 Referenced) Design a one‐way slab for an interior bay of a multi‐story office building using the information specified below. The comparison included design cases of rectangular beam sections subjected to combined loads of bending, shear and torsion, and punching shear at slab. According to the 1995 ACI Code, all two-way reinforced concrete slab systems, including edge supported slabs, flat slabs, and flat plates, are to be analyzed and designed according to one unified method, such as Direct Design Method and Equivalent Frame Method. This article explains how to avoid some fatal mistakes when installing radiant heat in a concrete floor slab by describing an incompetent radiant heat floor installation along with an explanation of why things went wrong and how to avoid these errors. additional slab-on-grade design methods are outlined in the American Concrete Institute Committee 360’s Guide to Design of Slabs-on-Ground (2010). For further information see (1) "Load carrying capacity for concrete slabs on grade" in the ASCE Journal of Structural Engineering January 1997; (2) Acceptable Design & Analysis methods for use of slabs-on-grade foundations, City of Los Angeles LAMC91. They often argue that faulty design, materials, or construction must have caused such cracks. All columns are 500 mm X 500 mm. 6R-15 Report on Design and Construction of Steel Fiber-Reinforced Concrete Elevated Slabs ACI. Design the slab, following the provisions of the ACK Code. =20 kN/m2 (including own weight). CONCRETE FLOOR AND SLAB CONSTRUCTION 302. All columns are 500 mm X 500 mm. ment allowing up to 80 ksi reinforcement. Two-Way Slab Analysis and Design ACI 318 states that a slab system shall be designed by any procedure satisfying equilibrium and geometric compatibility, provided that strength and serviceability criteria are satisfied. According to the 1995 ACI Code, all two-way reinforced concrete slab systems, including edge supported slabs, flat slabs, and flat plates, are to be analyzed and designed according to one unified method, such as Direct Design Method and Equivalent Frame Method. The design of suspended floors should conform to requirements of ACI 318 and ACI 421. “Design of Slabs-on-Ground” – ACI 360R-06 – by American Concrete Institute “Slab Thickness Design for Industrial Concrete Floors on Grade” (IS195. o ACI (American Concrete Institute) Code emphasizes: (a) strength provisions (b) serviceability provisions (deflections, crack widths) (c) ductility provisions (stress redistribution, ductile failure) Design factors o 1956 – A. One Way Slab Design Example: A reinforced concrete slab is built integrally with its supports and consists of equal span of 15 ft. 2) (ACI 318-11) These values are applicable for normal loading conditions and for slabs not supporting or. Chapter 3—Slab types. 4—Design theories for slabs-on-ground. CE 403, Fall 2015 Slab Design Example 1 / 5 (ACI 318‐11 Referenced) Design a one‐way slab for an interior bay of a multi‐story office building using the information specified below. 3—General comparison of slab types. The thickness of slab and depth of rib of waffle slab can be then computed by equalizing the moment of inertia of equivalent flat slab to that of waffle slab. The report addresses the planning, design, and detailing of slabs. The service live load is 100 psf, and 4000 psi concrete is specified for use with steel with a yield stress equal to 60,000 psi. Concrete Slab Reinforcement. set) verifies that a concrete mixture meets design re-quirements prior to use in construction. The service live load is 100 psf and 4000 psi concrete is specified for use with steel with a yield stress equal to 60000 psi. 1—Materials 2. One-way Joist Systems 5. 6 Depth Limitations and Stiffness Requirements 492 16. The in situ concrete slab floor are built using form-work, which is commonly made of wooden planks & boards, plastic or steel. 25, Qk does not exceed 5 kN/m2, and there are at least three rows of panels. What is the definition of a "crack"? Almost all concrete slabs have cracks. Background information on design theories is followed. 3R-08: Guide for Specifying, Proportioning, and Production of Fiber-Reinforced Concrete. Conventional reinforced flat slabs and. Depending on the boundary condition and the properties of the slabs, methods of finding bending moment is expressed in the BS 8110 Part 01 as follows. The slab has to carry a distributed permanent action of 1. The service live load is 100 psf, and 4000 psi concrete is specified for use with steel with a yield stress equal to 60,000 psi. With our Flat Slab Analysis and Design program, you can analyze and design beamless concrete waffle slab or flat slab floors easily and precisely. The subgrade drag equation referenced in ACI 360, “Design of Slabs on Grade,” can be used to determine temperature and shrinkage control joint spacing in slabs based on the amount of steel reinforcement used. The design of post-tensioned flat slab can be done by using load balancing and equivalent. China Construction Concrete Slab Formwork Metal Form. The following sequence of steps should be followed:. This may or may not govern the design of the slab, but it needs to be checked. Classification of Flat Slab. Normal-weight aggregate concrete is specified with a density of 145 pcf. The equation is: 𝐀𝐬= 𝐅𝐋𝐰 𝐅𝐰 𝟐𝐟𝐬 𝐨𝐫 𝐋 =. A plain structural concrete slab-on-ground uses the properties of the concrete to support the design loads. It addresses the planning, design, and detailing of slabs. Title: Microsoft Word - h_slabs. Check if provided slab thickness satisfy the minimum thickness requirement of the code b. Beginning in 1956 with the introduction of ultimate strength design, each new code offered better uti­ lization of high-strength reinforcement and the compressive strength of the con­ crete itself. ) Figure 1: Test picture of anchor reinforcement Figure 2: Anchor reinforcement detail at mid-slab. MidWest Plan Service (Koenig & Runestad, 1998, 2005) has used a. 1R-04, Guide for Concrete Floor and Slab Construction. Eccentric Footing Design Based on ACI 318-02 Flagpole Footing Design Based on Chapter 18 both IBC & UBC Flat Slab Analysis & Design to en 1992-1m Depressed Floor Deck Capacity Using Steel Properties Only (Non Composite) Spread Footing Analysis Shear Friction Reinforcing Design Based on ACI 318-02 Gabion Wall Typical Design Sheet. 3R-93 (Reapproved 2006) Covers the design and construction of foundation piers 30 in. The minimum amount and spacing of reinforcement to be used in structural floors, roof slabs, and walls for control of temperature and shrinkage cracking is given in ACI 318 or in ACI 350R. Design of Slab (Examples and Tutorials) by Sharifah Maszura Syed Mohsin Example 1: Simply supported One way slab A rectangular reinforced concrete slab is simply-supported on two masonry walls 250 mm thick and 3. The application uses the strength design method of ACI 318. Slabs without drop and column head. eesti nbsp 14 Oct 2014 ACI 318 provides two alternative methods for designing two way slabs for concrete The equivalent frame method EFM and the direct design nbsp 14 Oct 2014 Introducing voids to the soffit of a slab reduces dead weight and increases the efficiency of the concrete section. Design of Slabs-on-Ground Reported by ACI Committee 360 ACI 360R-06 This document presents information on the design of slabs-on-ground, primarily industrial floors. 3 permits the use of the following approximate moments and shears for design of continuous beams and one-way slabs, provided:. design of flat slabs and given their guidelines in their respective codes. Packard (Portland Cement Association, 1976) “Concrete Floor Slabs on Grade Subjected to Heavy Loads” Army Technical Manual TM 5-809-12, Air Force Manual AFM 88-3. This may or may not govern the design of the slab, but it needs to be checked. zambia concrete pump design. Since the wall axial load small and sections under tension-controlled (ACI 318-14 21. Required reinforcement is displayed in a very easy to appreciate way. Subgrade and Subbase for Concrete Slabs Subgrade and subbase are the foundation of a concrete slab and play critical role in its performance. What is the definition of a "crack"? Almost all concrete slabs have cracks. to ACI 318-14 (US code) in RFEM and RF-CONCRETE Surfaces / Deflect. See full list on theconstructor. 95-107, ACI Fall. The typical construction of a slab requires joints every 12’ 6”, resulting in thousands of feet of joints where bacteria can hide. 20%, does not normally control cracks to within generally acceptable design limits. Slab bottom steel in the direction of cantilever is # 13 @ 190 mm. Design methods will be based on ACI 360 and presented for un-reinforced concrete, reinforced (steel, fibers) concrete, and fiber-reinforced concrete slabs-on-ground, followed by information on shrinkage and curling. The success of the approach is often left to the control of the contractor, and seldom is consid-ered in the design process. A reinforced concrete slab is built integrally with its supports and consists of two equal spans, each with a clear span of 15 ft. Solution:. 20%, does not normally control cracks to within generally acceptable design limits. 1R-04, Guide for Concrete Floor and Slab Construction. Visit ACI 13. slab was designed for gravity and wind load in accordance with ACI 318-83. Packard (Portland Cement Association, 1976) “Concrete Floor Slabs on Grade Subjected to Heavy Loads” Army Technical Manual TM 5-809-12, Air Force Manual AFM 88-3. 5 (ACI, 2005). Calculate slab moments using ACI factors:. 0 kN/m2 (excluding slab self-weight) and a variable action of 3. These white papers will enable field engineers and customer IT architects to. This design is a complete flat plate slab design, from shear to bending along with design of columns and shear head reinforcement. Building Code Requirements for Structural Concrete (ACI 318M-11) Design of Slender Columns by ACI 318 David Darwin Vietnam Institute for Building Science and Technology (IBST) Hanoi and Ho Chi Minh City December 12-16, 2011. Use for the slab, 5000 psi for the precast beams, and Use load factors from ACI Code Section 9. expectations only to fail in service due to improper or. Get the free version now Advertise with RCsolver. Subgrade and Subbase for Concrete Slabs Subgrade and subbase are the foundation of a concrete slab and play critical role in its performance. 6 Construction, contraction, & isolation joints 26. • ACI 2010 for slab-on-ground design wherein round and square dowels need be 10, 13, and 15 in. Design of Slab (Examples and Tutorials) by Sharifah Maszura Syed Mohsin Example 1: Simply supported One way slab A rectangular reinforced concrete slab is simply-supported on two masonry walls 250 mm thick and 3. 2—Slab types. Essential spreadsheet for two way slab design. ACI 215R-92, Considerations for Design of Concrete Structures Subjected to Fatigue Loading b. 1—Definitions. ACI 551R-92 describes Tilt-Up as “The tech-nique of site-casting wall panels on a horizon-tal surface and then lifting or tilting them into place…” ACI 318-02 and IBC 2000 define pre-cast concrete as “a structural concrete element cast elsewhere than its final position in the structure. ACI 318-11 RC SMRF Design. ” ACI 318 further states that Tilt-Up. The second important thing to understand about ACI 302. in Fiber Reinforced Self-Consolidating Concrete: Research and Applications - Technical Sessions at the ACI Fall 2009 Convention. The in situ concrete slab floor are built using form-work, which is commonly made of wooden planks & boards, plastic or steel. The concrete cylinder strength for slabs, beams and square columns should be considered as given in the table for each student. It is not uncommon, to find that a concrete slab floor system may require a smaller thickness to satisfy ACI 318 strength requirements than the thickness required by a building code for a 2-hour fire resistance. ACI 360, "Design of Slabs-on-Grade", refers to this as a Type B slab. ACI 360R-10 presents information on the design of slabs-on-ground, primarily industrial floors. 4 Slabs on ground If part of seismic force resisting system. The bearing pressure. [Current] PCI Design Handbook (8th Ed. ACI Mix Design Process of measuring the slump of fresh concrete ACI Mix Design This drop in height is the slump measure of the degree of workability of the mix. 1-1) Columns at re-entrant corners, such as Column 3 in Fig. an introduction for common types of slabs used in civil engineering , then followed by general example to calculate thickness according to ACI-14 requirements. Live load to dead load ratio: W L /W D = 0. The equation is: 𝐀𝐬= 𝐅𝐋𝐰 𝐅𝐰 𝟐𝐟𝐬 𝐨𝐫 𝐋 =. The design method is based on the recent research of Shentu, Jiang and Hsu. Although, not included in 1977 and later versions of ACI code, its continued use is permissible under the ACI 318-11 code provision (13. Flat slab system is an important division of concrete floor system. Information on other aspects, such as materials, construction methods, placement of concrete, and finishing techniques is included only where needed in making design decisions. When ACI 318, ACI 332, PCA 100 or the provisions of this section are used to design concrete foundations walls, project drawings, typical details and specifications are not required to bear the seal of the architect or engineer responsible for the design, unless otherwise required by the state law of the jurisdiction having authority. Advantages and disadvantages of each of these slab designs are provided, including the ability of some slab designs to minimize cracking and curling more than others. Refer to ACI 223 for procedures for the design and construction of shrinkage-compensating concrete slabs-on-ground. Design Of Reinforced Concrete Structures ii Two-Way Slabs 1 1. Two-way Solid. Unlike some other slab analysis programs for structural engineer companies, our program calculations follow the ACI 318-83 code’s equivalent frame analysis. , random forest (RF), random tree (RT), and classification. CE 403, Fall 2015 Slab Design Example 1 / 5 (ACI 318‐11 Referenced) Design a one‐way slab for an interior bay of a multi‐story office building using the information specified below. Design Of One Way Slab, Design Of RCC Slab - Engineering Discoveries Step NO. Slab Punching Design Excel Sheet According ACI 318-08 Flat slabs that are supported directly on columns, without beams between the columns, generally transfer a significant concentrated load that affects a relatively small area. that, for bigger slabs (30 cm or thicker), designing the formwork for the weight of slab plus 50 psf of impact load is not very safe where the effective impact load is higher than the design loads specified by ACI 347R-88. 2—Products 2. Provide use of manufacturer's standard forms complete with slab form support pins. The success of the approach is often left to the control of the contractor, and seldom is consid-ered in the design process. * the design moments in the edge panel may have to be adjusted according to 3. 274 SP edn, American Concrete Institute, ACI Special Publication, no. Refer to district-specific corrosion protection requirements for regions where bridge decks are exposed to de-icing agents and/or saltwater. 1R-3 The design of slabs-on-ground should conform to the recommendations of ACI 360R. Stresses in floor slabs on grade resulting from vehicular loads are a function of. The ACI Manual of Concrete Practice is a seven-part compilation of current ACI standards and committee reports. [Current] PCI Design Handbook (8th Ed. Design and detailing of the following structural members are covered for buildings assigned to Seismic Design Categories A through F with emphasis placed on the revisions made in ACI 318-19: One-way slabs. (Note: Appendix D is moved into a new Chapter 17 in ACI 318-14. 3(d) and 17. an introduction for common types of slabs used in civil engineering , then followed by general example to calculate thickness according to ACI-14 requirements. The report addresses the planning, design, and detailing of the slabs. The design of suspended floors should conform to requirements of ACI 318 and ACI 421. ) Figure 1: Test picture of anchor reinforcement Figure 2: Anchor reinforcement detail at mid-slab. With some limitations, reinforcement for slabs can be sized using the Subgrade Drag Theory in order to increase the spacing of control or construction joints. The current language of ACI 318-14, 2 Sections 1. * the design moments in the edge panel may have to be adjusted according to 3. Get the free version now Advertise with RCsolver. ACI 360R-10 Guide to Design of Slabs-on-Ground. 2 ACI Committee 302-ACI Committee 302 de-velops recommendations on the construction of floor slabs. additional slab-on-grade design methods are outlined in the American Concrete Institute Committee 360’s Guide to Design of Slabs-on-Ground (2010). Usually ground slabs do not require any form-work. 3—Fabrication and manufacture 2. Subgrade and Subbase for Concrete Slabs Subgrade and subbase are the foundation of a concrete slab and play critical role in its performance. the ACI 318-05 standard of the American Concrete Institute. New design require-ments for these checks are included in ACI 318-05 §21. Direct design method, that could have been named the direct analysis method because it determines or prescribes moments for different parts of the slab panel without the need to conduct structural analysis, is explained in the following sections. The service live load is 100 psf and 4000 psi concrete is specified for use with steel with a yield stress equal to 60000 psi. ACI-318 allows two approaches to the design of reinforced concrete with some limits on wall thickness and the minimum amount of steel reinforcement; however, ACI-318 also permits these requirements to be waived in the event that structural analysis demonstrates adequate strength and stability in accordance with ACI-318•14. ACI 360R-10 presents information on the design of slabs-on-ground, primarily industrial floors. 901(d)(1) Name of Legally Binding Document: ACI 318: Building Code Requirements for Reinforced Concrete. 2R-13 to ACI 314R-11. =20 kN/m2 (including own weight). 6 qk) l is the effective span. round or square dowels, respectively. Uniform Floor Live Loads Slab El. Advantages and disadvantages of these slab design methods will be discussed, including the ability of some slab designs to. 5(a) gives the minimum thickness of a one-way slab as For a simply supported beam, the table gives Deflections of the composite beam may be a problem if the overall. It can be used by both practicing Engineers and students. ACI 360, "Design of Slabs-on-Grade", refers to this as a Type B slab. Calculate Aspect Ratio Aspect Ratio > 2 = Longer span/Shorter span 2. DESIGN OF THE FLAT SLAB STRUCTURES. 274 SP edn, American Concrete Institute, ACI Special Publication, no. in length for ¾, 1, and 1-¼ in. NONSTRUCTURAL CONCRETE SLAB REINFORCEMENT. - Performed structural analysis and design of long-span composite floor systems, long-span composite podium slabs, roof, form, and floor decks under gravity and lateral loads (diaphragm design). Two Way Slab Problem Statement: Use the ACI 318 Direct Design Method to design an interior bay of a flat plate slab system of multi bay building. All beans are 500 mm wide and 600 mm deep. 3-04 R2010 D. Concrete Slab Reinforcement. Structural Design Guide to ACI Code Fourth Edition Authors Edward S. The report addresses the planning, design, and detailing of slabs. Recommendations on how to improve construction. Assume partitions cannot be damaged by deflections. Slab Punching Design Excel Sheet According ACI 318-08 Flat slabs that are supported directly on columns, without beams between the columns, generally transfer a significant concentrated load that affects a relatively small area. Design the slab, following the provisions of the ACK Code. Title: Microsoft Word - h_slabs. Summary: Design the single-story building with the plan shown below considering the loads to be distributed uniformly over the slab area. 4+fy/100000) = 4″ (Minimum by ACI for end span y h = l/28 × (0. Normal-weight aggregate concrete is specified with a density of 145 pcf. It is not uncommon, to find that a concrete slab floor system may require a smaller thickness to satisfy ACI 318 strength requirements than the thickness required by a building code for a 2-hour fire resistance. The axial force, moments and shears for a partic-ular strip are recovered from the analysis (on the basis of the Wood -Armer tech-. 3R-15: Guide to Design of Reinforced Two-Way Slab Systems coll. Most Iraqi civil engineers are familiar with ACI code; however it is necessary to inform them about the other current British and European codes. Accordingly, this study utilized tree predictive models (i. The modification is. Publisher: Digital Canal Corporation. 2 ACI Committee 302-ACI Committee 302 de-velops recommendations on the construction of floor slabs. Upgrade to the ad free version for only $150. Modify ACI 318 Sections 17. Below is a brief summary of the ACI standard. Use 300 mm slab thickness a. Please also feel free to contact us by email or phone. CE 403, Fall 2015 Slab Design Example 1 / 5 (ACI 318‐11 Referenced) Design a one‐way slab for an interior bay of a multi‐story office building using the information specified below. The equation is: 𝐀𝐬= 𝐅𝐋𝐰 𝐅𝐰 𝟐𝐟𝐬 𝐨𝐫 𝐋 =. Design of Slab (Examples and Tutorials) by Sharifah Maszura Syed Mohsin Example 1: Simply supported One way slab A rectangular reinforced concrete slab is simply-supported on two masonry walls 250 mm thick and 3. Description of Software Tool: This Excel Software Tool is provided for the design of American Concrete Institute (ACI) Building Code Requirements for Structural Concrete (318-11) design of Reinforced Concrete (RC) Special Moment Resisting Frame (SMRF) elements and connections. Design of Slabs-on-Ground Reported by ACI Committee 360 ACI 360R-06 This document presents information on the design of slabs-on-ground, primarily industrial floors. Packard (Portland Cement Association, 1976) “Concrete Floor Slabs on Grade Subjected to Heavy Loads” Army Technical Manual TM 5-809-12, Air Force Manual AFM 88-3. Continous One Way Slabs: Calculates bending moments using ACI coefficients, and determines the required reinforcing-bar spacing for continuous one way slabs. Slab Punching Design Excel Sheet According ACI 318-08 Flat slabs that are supported directly on columns, without beams between the columns, generally transfer a significant concentrated load that affects a relatively small area. 3—Fabrication and manufacture 2. The comparison included design cases of rectangular beam sections subjected to combined loads of bending, shear and torsion, and punching shear at slab. ment allowing up to 80 ksi reinforcement. : The Pre-Slab Conference – Essential for a Successful Floor. Background information on design theories is followed by discussion of the types of slabs, soil-support systems, loadings, and jointing. 7 Modified Westergaard design method for patch loads. Impact damage from hard wheeled moving loads can take its toll on the slab, typically resulting in floor joint damage and surface defects. His role at ACI is to provide technical and administrative support to ACI's Technical Committees. CHAPTER EIGHT DESIGN OF ONE-WAY SLABS 7 8. Design methods are given for unreinforced concrete, reinforced concrete, shrinkage-compensating concrete, post-tensioned concrete, fiber-reinforced concrete slabs-on-ground, and slabs-on-ground in refrigerated. Slab Punching Design Excel Sheet According ACI 318-08 Flat slabs that are supported directly on columns, without beams between the columns, generally transfer a significant concentrated load that affects a relatively small area. For thin unbonded toppings, providing a minimum thickness to control curling is essential; aCI 3022 recommends a minimum thickness of 75 mm for unbonded topping slabs, and if curling is an issue, the provision of additional joints. com ADAPT Corporation, Redwood City, California, USA, Tel: (650) 306-2400 Fax (650) 306 2401 ADAPT International Pvt. - Performed structural analysis and design of long-span composite floor systems, long-span composite podium slabs, roof, form, and floor decks under gravity and lateral loads (diaphragm design). 11-15) ⇒ s = A v x f y x d / V s where A v = cross-sectional area of each stirrup has crossed the crack V u 45 0 Number of stirrups crossing the crack, n = d / s d s A v = 2 times the cross-sectional area of the stirrup bar. 1—Introduction. 2) (ACI 318-11) These values are applicable for normal loading conditions and for slabs not supporting or. The report addresses the planning, design, and detailing of the slabs. Check if provided slab thickness satisfy the minimum thickness requirement of the code b. The report addresses the planning, design, and detailing of slabs. As part of our ongoing support for engineers, we now offer FIBERSAVE; a comprehensive design program to complete your slab on ground design. The locations of the strips are usually governed by the locations of the slab supports. The slab is designed as a large mat foundation for the tank walls and fluid. 5 Shear Resistance of Slabs 489 16. Structural Analysis and Design – General 3. The ACI Reinforced Concrete Design Manual provides many design examples of various reinforced concrete members based on a fictitious seven-story building. [When attempting to predict] con-crete volumes required to produce an acceptably level slab that is placed over a flexible substrate [it must be recognized. 5 (ACI, 2005). LCI, the ratio of Qk/Gk does not exceed 1. 4 Slabs on ground If part of seismic force resisting system. References to this document are made throughout this guide if the reader wishes to consult the appropriate section of ACI 302 for more detail. that are found in ACI 302. The American Concrete Institute (ACI) has released a paper called Punching Shear in Prestressed Concrete Deck Slabs: Parametric Study. These white papers will enable field engineers and customer IT architects to. 0 kN/m2 (excluding slab self-weight) and a variable action of 3. ACI 318 “Building Code Requirements for Structural Concrete,” ANSI/ASCE 3 “Standard for the Structural Design of Composite Slabs,” and SDI #30 “Design Manual for Composite Decks, Form Decks, and. Design of a one-way slab Step-1 Selection of thickness, h ACI 318 -11-Building Code Requirements for Structural Concrete- by American Concrete Institute, ACI. Cobiax [1] slabs contain synethic void forming modules making slabs up to 35% lighter. 4 and CSA A23. 2 Analysis of Two-Way Slabs 487 16. This spreadsheet is an extremely efficient tool and allows to quickly design two way slabs to aci code. Background information on design theories is followed by discussion of the types of slabs, soil-support systems, loadings, and jointing. ULTIMATE STRENGTH DESIGN ALTERNATE METHOD FOR ANALYSIS : ACI MOMENT AND SHEAR COEFFICIENTS:DESIGN OF SLABS Locations: Approximate moments and shears for continuous beams and one way slabs provided that: ü There are 2 or more spans ü Loads are uniformly distributed ü Members are prismatic ü Unfactored live load does not exceed three (3) times the unfactored dead load (LL < 3DL) ü Spans are. The design of post-tensioned flat slab can be done by using load balancing and equivalent. FREE VERSION OF RCsolver - Concrete Design with EC2, EC8, and ACI 318. Floor Classifications Table 1 describes the nine classes of concrete floors according to ACI 302, Guide to Concrete Floor and Slab Construction. that are found in ACI 302. round or square dowels, respectively. The critical element of this system is the slab to column. Provide use of manufacturer's standard forms complete with slab form support pins. The bearing pressure. The comparison included design cases of rectangular beam sections subjected to combined loads of bending, shear and torsion, and punching shear at slab. 3 permits the use of the following approximate moments and shears for design of continuous beams and one-way slabs, provided:. 95-107, ACI Fall. Design and detailing of the following structural members are covered for buildings assigned to Seismic Design Categories A through F with emphasis placed on the revisions made in ACI 318-19: One-way slabs. One-way Joist Systems 5. Otherwise, the standard of prac-. 1 is that it is intended as a how-to guide for contractors and to help them understand the design provisions that are laid out in ACI 360R-10, Design of Slabs on Ground. 11-15) ⇒ s = A v x f y x d / V s where A v = cross-sectional area of each stirrup has crossed the crack V u 45 0 Number of stirrups crossing the crack, n = d / s d s A v = 2 times the cross-sectional area of the stirrup bar. Advantages and disadvantages of each of these slab designs are provided, including the ability of some slab designs to minimize cracking and curling more than others. This strip is designed basically as if it were a 12-inch-wide beam, “t” inches thick. 0m and to be used as balcony (LL = 300 kg/m2). The slab has to carry a distributed permanent action of 1. The bearing pressure. All beans are 500 mm wide and 600 mm deep. Mobasher, B & Destrée, X 2010, Design and construction aspects of steel fiber-reinforced concrete elevated slabs. With our Flat Slab Analysis and Design program, you can analyze and design beamless concrete waffle slab or flat slab floors easily and precisely. The slab is designed as a large mat foundation for the tank walls and fluid. Calculation of approximate depth from deflection criteria (Cl 23. additional slab-on-grade design methods are outlined in the American Concrete Institute Committee 360’s Guide to Design of Slabs-on-Ground (2010). 901(d)(1) Name of Legally Binding Document: ACI 318: Building Code Requirements for Reinforced Concrete. 17 ¥ B Ö′ where f’c is the specified compressive strength in psi (MPa), ρ is the reinforcement ratio, and d is the effective depth. After this publication, it was subsequently adopted by the Uniform Building. Published 1982. ACI 360R-10 Guide to Design of Slabs-on-Ground. The recommendations do not consider connections with slab shear reinforcement, slab-wall connections, precast or prestressed connections, or slabs on grade. Please also feel free to contact us by email or phone. 7 needs clarification. ACI 360R-06 Brings Slabs on Ground Design into the 21st Century The reason for the stress limiting approach to slab design is service- for example), leading Slab on Grade Reinforcing Design Post-tensioning is very popular for slab-on-grade construction in some areas of the ACI 360, "Design of Slabs-on-Grade",. In the design of structures, building code requirements for fire resistance are sometimes overlooked and this may lead to costly mistakes. FIBERSAVE is based on accepted design procedures per ACI or TR34 and is available to you online. Two-Way Slabs, Direct Design Method 484 16. com ADAPT Corporation, Redwood City, California, USA, Tel: (650) 306-2400 Fax (650) 306 2401 ADAPT International Pvt. 0, slab is called two-way slab, as shown in the fig. The design of structural concrete is dictated by Building Code Requirements for Structural Concrete (ACI 318-05) and Commentary (ACI 318R-05). Minimum Slab Thickness. In this research, a comparative study was conducted on the amount of required reinforcement using American Concrete Institute (ACI) and British Standards Institution (BSI) building codes. As part of our ongoing support for engineers, we now offer FIBERSAVE; a comprehensive design program to complete your slab on ground design. According to the ACI Code the subgrade is a compacted and improved natural soil or brought infill whereas subbase is a layer. Slabs without drop and column head. doc Author: pezeshk Created Date: 1/24/2007 8:18:00 AM. Note the ACI 318 code at present does not cover structural slabs on ground. • Repair design consistent with relevant standards (ACI 318, ACI 440. ACI 360R-10 and ACI 302. Conventional reinforced flat slabs and. The main objective of the paper is to study method of analysis and design of flat slab by using ACI -318 08 design codes, with MATLAB Programming for the easy application (language) for the design of flat slab. 1 =28 MPa and 1,-420 MPa. Use 300 mm slab thickness a. CONCRETE FLOOR AND SLAB CONSTRUCTION 302. eesti nbsp 14 Oct 2014 ACI 318 provides two alternative methods for designing two way slabs for concrete The equivalent frame method EFM and the direct design nbsp 14 Oct 2014 Introducing voids to the soffit of a slab reduces dead weight and increases the efficiency of the concrete section. Design methods will be based on ACI 360 and presented for un-reinforced concrete, reinforced (steel, fibers) concrete, and fiber-reinforced concrete slabs-on-ground, followed by information on shrinkage and curling. While concrete has been used for thousands of years, the use. 1R‐22 through 302. 1 Slab Design ETABS slab design procedure involves defining sets of strips in two mutually perpendicular directions. The concrete cylinder strength for slabs, beams and square columns should be considered as given in the table for each student. (assuming cover 3/4 in). 7 months ago. N2 - In this research, a comparative study was conducted on the amount of required reinforcement using American Concrete Institute (ACI) and British Standards Institution (BSI) building codes. With our Flat Slab Analysis and Design program, you can analyze and design beamless concrete waffle slab or flat slab floors easily and precisely. Neglect compression reinforcement. aci slab design Buettner and Roger J. 5 (ACI, 2005). NONSTRUCTURAL CONCRETE SLAB REINFORCEMENT. Detailing of the slab-wall connection is also an important design consideration, as the rotation of the core wall can impose. 3—General comparison of slab types. Essential spreadsheet for two way slab design. Bending will take place in the two directions in a dish-like fo. (69899 70008). All beans are 500 mm wide and 600 mm deep. It addresses the planning, design, and detailing of slabs. This is because it is considered to be too conservative and more precise approaches can be employed. design concrete pavements for any set of climate, traffic, subgrade/subbase layers, and material inputs…This methodology designs the concrete pavement thickness by optimizing the slab size to suit a given geometry of truck wheel and axle spacing. Get full capabiltiies with our free version of RC-Solver once you signup for our newsletter. connection and loading on the flat slab for the design is based on a single load case, i. 4 Slabs on ground If part of seismic force resisting system. Flat slab system is an important division of concrete floor system. input cells automatically cross out invalid data 3. What is the age of the concrete? 6. Examples using several design methods are also provided. Sizes: ACI table 7. One-way simply supported slab • Analysis and design of the slab similar to design of simply supported beam as indicate in the previous chapter. Typically street pavement slabs range from 5 to 8 in. from the typically specified 18 in. 4 Slabs on ground If part of seismic force resisting system. With the free version you will have to wait 30 seconds for advertisements. 20%, does not normally control cracks to within generally acceptable design limits. How was the concrete cured? 4. The current language of ACI 318-14, 2 Sections 1. ) Figure 1: Test picture of anchor reinforcement Figure 2: Anchor reinforcement detail at mid-slab. 4—Design theories for slabs-on-ground. The service live load is 100 psf and 4000 psi concrete is specified for use with steel with a yield stress equal to 60000 psi. 7 Limitations of Direct Design. Civil Engineering Software Civil Engineering Design Civil Engineering Construction Bridge Construction Construction Design Structural Drawing Structural Analysis Architecture Symbols Architecture Details. Before Euro Code2 and BS8110 are involved strongly in our design life, most engineers. Bending will take place in the two directions in a dish-like fo. * the design moments in the edge panel may have to be adjusted according to 3. 1806 and (3. It addresses the planning, design, and detailing of slabs. The ACI Reinforced Concrete Design Manual provides many design examples of various reinforced concrete members based on a fictitious seven-story building. The concrete cylinder strength for slabs, beams and square columns should be considered as given in the table for each student. The most common method used in North America is that established by ACI Recommended Practice 211. 4—Design and construction variables. Ground beams are designed to carry the vertical loads on the beams, loads transferred from the floor slabs and loads applied by columns due to the pile eccentricities. 1 gives the minimum one way slab thickness. In short, requirements in ACI 318-14 are organized mainly by member type (one-way slabs, beams, two-way slabs, columns, etc. These materials are originally located at different websites.