Inroduction When the ratio (L/S) is less than 2.0, slab is called two-way slab, as shown in the fig. Analysis & Design of Two-way Slabs Equivalent Frame Method spSlab utilizes the Equivalent Frame Method for the analysis and design of two-way slab systems, i.e. “How to design concrete structures using Eurocode 2”, The Concrete Centre, 2010) - Figure 2: Simplified detailing rules for slabs 15.0 PRESTRESSED MEMBERS AND STRUCTURES 22 Flat slab system is an important division of concrete floor system. This includes Engineer … Manual for Design and Detailing of Reinforced Concrete to September 2013 the Code of Practice for Structural Use of Concrete 2013 Contents 1.0 Introduction 2.0 Some highlighted aspects in Basis of Design 3.0 Beams 4.0 Slabs 5.0 Columns 6.0 Beam-Column Joints 7.0 Walls 8.0 Corbels 9.0 Cantilevers 10.0 Transfer Structures 11.0 Footings 3. For slabs spanning in both directions published tables and charts should be used to find bending moment and shear per unit width of slab. I need help to design a slab on grade. 13.0 CRACKING RULES FOR SLAB 21 (Ref. REINFORCED FLAT SLAB DESIGN EXCEL SHEET. BS EN 1992–1–1 section 5. 1. FRP reinforced-concrete slabs: a comparative design study DOI: 10.1680/jstbu.16.00055 Document Version Accepted author manuscript Link to publication record in Manchester Research Explorer Citation for published version (APA): Stuart, V., & Cunningham, L. (2017). Design flexural reinforcement for column strips and middle strips both ways. 4. The Wire Reinforcing Institute recommends the use of the Subgrade Drag Theory for slabs up to 150 feet in length. result is a lightly reinforced slab designed to offset the effects of temperature and shrinkage of the concrete. Reinforced Concrete Design Asst.Prof.Dr.Mongkol JIRAVACHARADET S U R A N A R E E UNIVERSITY OF TECHNOLOGY INSTITUTE OF ENGINEERING SCHOOL OF CIVIL ENGINEERING Moment Strength of Concrete Sections d b As ก ... FLANGE SLAB WEB bw bE bE h s = span s0 = clear span Built-in T Section - A civil engineer must know all the aspects regarding the flat floor system. Effective width of flanged beam. One-way Slabs; Two-way Slabs; Staircases. However, ACI 360R-10 “Guide to the Design of Slabs-on-Ground” 2. The ultimate stress method is the one most commonly used. A finite element model may be created to analyse a complicated loading arrangement. This structural design process has been carried out under use of BS8110 design code of practice. a slab system consisting of approximately rectangular panels with the ratio of longer-to-shorter span within a panel not exceeding 2.0, per American (ACI 318) and Canadian (CSA A23.3) concrete codes. ACI 506.1R, “Guide to Fiber-Reinforced Shotcrete” 3. 6 Version 2.3 May 2008 comparatively larger than the “elastic” one prior to failure. This course will limit discussion to normal reinforced structural concrete using 4,000 psi concrete and 60,000 psi rebar. For One Way Slab 1. A reinforced concrete slab is a broad, flat plate, usually horizontal, with top and bottom surfaces parallel or nearly so. There are two acceptable methods to design concrete: the working stress method and the ultimate strength method. Figure 2.2 – Simplified stress block for ultimate reinforced concrete design . ACI 360, "Design of Slabs-on-Grade", refers to this as a Type B slab. The ultimate force is the sum of the stress × areas of the steel and concrete: cu0.67 y uz c sc mm f f NAA γγ ⎛⎞⎛⎞ =+⎜⎟⎜⎟ ⎝⎠⎝⎠ For concrete … I have a two storey building, and my second floor and roof loads are transmitted to column footings below my slab on grade. At Slabtech we specialise in Reinforced Concrete Slabs, Raft Foundations, Civil Construction and Structural Design. You can also enter the amount of longitudinal reinforcement (that affects the shear capacity) in the two main directions. In the next chapter, after reviewing the fundamental concepts of Two-way reinforced concrete slab design, I will make a new Rapt model for a step by step design and analysis of a two-way slab. Especially, computations have been made by use of BS 8110 based spreadsheets; publication produced by the Reinforced Concrete Council (RCC) as part of its project 'Spreadsheets for concrete design to … Design for full load in both directions. Civil Engineering Design (1) 10 Dr. C. Caprani 2. The Robot offers two possibilities for a design of RC structure members: calculation of the required (theoretical) reinforcement area needed for the RC member generation of the provided (real) reinforcement for the RC member Accordingly, main reinforcement is required in the two directions. It is used in one form or another for almost all structures, great or small—buildings, bridges, pavements, dams, retaining walls, tunnels, drainage and irrigation facilities, tanks, and so on. DESIGN OF REINFORCED CONCRETE SLAB (c) Ribbed slab (d) Waffle slab Figure 3.1: Types of slab Flat slab floor is a reinforced concrete slab supported directly by concrete columns without the use of intermediary beams. Reinforced Concrete Slabs. Definitions, Classifications, Guidelines and Assumptions; Short Axially Loaded Compression Members; Short Compression Members under Axial Load with Uniaxial Bending; Preparation of Design Charts Design of Reinforced Concrete Slabs 107 B = 1.2x 1 where x = distance of load-from support closest to load I = effective span. A similar approach was also used by Kemp6 to determine the yield criterion for an orthogonally reinforced slab. Working Stress Design is called Alternate Design Method by NSCP (National Structural Code of the Philippines) and ACI (American Concrete Institute, ACI).. Code Reference NSCP 2010, Section 424: Alternate Design Method ACI 318M-99, Appendix A: Alternate Design Method Notation f c = allowable compressive stress of concrete f s = allowable tesnile stress of steel reinforcement Design Of Reinforced Concrete Structures ii Two-Way Slabs 1 1. ACI 544.3R-08 “Guide for Specifying, Proportioning, and Production of Fiber Reinforced Concrete” 4. This section contains information on how to design reinforced concrete elements of a structure. ACI 544.4R-18 “Design Guide for Fiber-Reinforced Concrete” 5. In March 2020, we hosted a webinar, “Case Study : Reinforced Concrete Solid Slab Bridge" by Mak Guo Shao, Bridge Engineer. SIMPLE SPAN REINFORCED CONCRETE SLAB BRIDGE INPUT: VERSION 6.2 VERSION 6.2 Fill out the fields as appropriate based on the information in the plans. 5. Lecture series on Design of Reinforced Concrete Structures by Prof. N.Dhang, Department of Civil Engineering, IIT Kharagpur. design of slabs, flexible pile caps and footings. Calculate Aspect Ratio Aspect Ratio > 2 = Longer span/Shorter span 2. By the end of this course you will be able to do a full Reinforced concrete slab design and analysis with RAPT similar to what a professional engineer does. Prof. Dr. Qaisar Ali CE-320 Reinforced Concrete Design-I Introduction In reinforced concrete construction, slabs are used to provide flat, useful surfaces. Section 9.3: MS EN 1992-1-1: 2010) 14.0 SIMPLIFIED CURTAILMENT RULES FOR SLAB 21 (Ref. Analysis and design of a single concrete sections or multiple sections. With the combined experience of Slabtech management, we offer a one-stop solution in a project life cycle to our clients. Advantages of Reinforced Concrete as a Structural Material. 2. Design Concrete Slab on Grade Design Concrete Slab on Grade pperr043 (Civil/Environmental) (OP) 6 Nov 06 21:44. Types of flanged beam. Flanged beam. 1. In this webinar, we will brief on the engineering reasons behind choosing a deck of such type, the characteristics of the deck, Wood-Armer Moment, design optimization, etc. The simplest routine structural element for illustration of design provisions in the Code is the one-way slab. The CONCRETE CALCULATOR™ is a simple and powerful tool which allows to analyze and design reinforced concrete beams, slabs and columns cross sections. FRP reinforced-concrete slabs: a comparative design study. 5. Member Name: Since this is the input for the the exterior portion of the slab use “Exterior Slab” for the name. Analysis and design for singly and doubly reinforced rectangular concrete beam. reinforced concrete slab under mo load cases design, extended to multiple layers of skew reinforcement and modified to calculate the factor of safety on an applied field moments. below. Design reinforced concrete flat slabs for punching shear at internal, edge and corner columns by specifying the distance from the support to the slab edge; the program automatically determines the shear perimeters. Working Stress Design. Short Braced Axially Loaded Columns 2.1 Development The design of such columns is straightforward. Reinforced concrete may be the most important material available for construction. Design Spreadsheets. How to Design Concrete Structures to Eurocode 2 - Chapter 7: Flat slabs and Figure 1. Bending will take place in the two directions in a dish-like form. Types and Design of Staircases; Compression Members. Reinforced Concrete Slab Design Using the Empirical Method BridgeSight Solutions™ for the AASHTO LRFD Bridge Design Specifications BridgeSight Software TM Creators of effective and reliable solutions for the world’s bridge engineers 2688 Venado Way Rescue, CA 95672 Phone: 530-672-1569 E-mail: Internet: Ultimate limit state design theory. Analysis and design for singly and doubly reinforced flanged beam Proceedings of SAFE Reinforced Concrete Design 11.5.2 Design Beam Shear Reinforcement 11-14 11.5.3 Design Beam Torsion Reinforcement 11-17 11.6 Slab Design 11-21 11.6.1 Design for Flexure 11-22 11.6.2 Check for Punching Shear 11-23 11.6.3 Design Punching Shear Reinforcement 11-25 12 Design … Here, we have tried to gather various reading materials available in the web about flat slab floor system in one place. How to Design Concrete Structures to Eurocode 2 - Chapter 2: Getting started and Table 3.