Flat Slab Reinforcement Drawings

other than minor changes approved by the engineer. Reinforcement detailing of a slab is done based on its support conditions. EARLY PLANNING. Connection is made concealed for aesthetic reasons inside the slab thickness. ,max 0, 0 ck dd Rd sys v d sys cRdcck v c f VV Vkk bdVk f V kbd ψ ψ γ γ =≥→≥ = k. Best Practices for Concrete Slab Design Using Revit® Structure Florian Aalami - ADAPT Corporation SE 100-3 Intended for structural engineers using Revit Structure (RST), this class will equip you with the skills needed to carry out detailed designs of c oncrete slab and foundation models using ADAPT® software. Thus, unless the reinforcing is being used for other purposes (such as the "long dowel/enhanced aggregate interlock. Ready made structural designed drawings for an industrial building with elevated crane and mezzanine floor. Main bars are 12 mm in diameter @ 150 mm centre to centre spacing ; Distribution bars are 8 mm in diameter @ 150 mm centre to centre spacing. Drawing labels, details, and other text information extracted from the CAD file: drop panel, column capital, column, mm bars mm both ways as drop panel reinforcement, nos. these notes, details and drawings are to be read in conjunction with the project specifications. Punching shear is a phenomenon in flat slabs caused by concentrated support reactions inducing a cone shaped perforation starting from the top surface of the slab. The thickness of most long-span flat slabs, two-way slabs without beams, is controlled by the shear strength of the concrete slab surrounding the supporting column. Punching Shear Behavior of Flat Slabs Reinforced with Glass Fiber-Reinforced Polymer Bars by Christian Dulude, Mohamed Hassan, Ehab A. How to calculate the cover required for Different elements of a building. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design. Flat Slab Opening Reinforcement Detail Foundation reinforcement details, column baseplate, stiffeners, anchor bolts anchorage requirements, grouting, sub-footing. Usually, when a slab is supported by a beam the support is considered to be pinned. For ETABS ® 2016. Includes detail of concrete wall corner reinforcement. W Gene Corley ACI Convention, Phoenix, AZ , Sunday October 20, 2013. Charleson, Seismic Design for Architects, Architectural Press 2008, p. If the shear resistance is increased, slab. The software will instantly achieve an optimized design for all rebar within the beams, columns, slabs, flat plates and walls. C slab built monolithically with the supporting columns and reinforced in two or more directions. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design. The opening that the Architect wants to put is for a scupper drain which have a width of 150 (on plan) and a depth of approximately 100mm (the drain is just to connect to the oil interceptor). Typical structure/reinforcement detail of cutout in slab and walls like cutout close to bottom raft, cutout close to floor slab, Cutout along beam column strip in flat slab, cutout in mid of slab etc. European Commission Joint Research Centre Institute for the Protection and Security of the Citizen Contact information Address: Joint Research Centre, Via Enrico Fermi 2749, TP 480, 21027 Ispra (VA), Italy. Flat Slab Analysis and Design designs beamless concrete slab floors (flat slab or waffle slab) in accordance with ACI 318. Civil structural engineering - Flat slab design 1. Two-Way Flat Plate Concrete Floor System Analysis and Design The concrete floor slab system shown below is for an intermediate floor to be designed considering partition weight = 20 psf, and unfactored live load = 40 psf. Introduction, definitions Flat slabs are two-way slabs supported by point-like supports. The thickness of the slab has to be increased or the slab has to be shear reinforced. Two-Way Flat Plate Concrete Floor System Analysis and Design. How to design a flat slab, step by step explained in this video. Round Flat Top Round Bases 96-Inch Dia. SIMPLE SPAN REINFORCED CONCRETE SLAB BRIDGE INPUT: VERSION 6. For lower loads they can have constant. Generally the procedure of providing reinforcement for any slab is following the reinforcement drawings from structural consultant. Cables are arranged as indicated by the engineer and chaired to run through the center of the slab. The design of steel deck reinforced slab systems is based on the load-carrying capacity according to the governing failure mode. This article presents an alternative method for designing concrete flat slabs subjected to flexure-induced punching. Section Civil & Geotechnical Engineering 1 Calc. The reinforcement can be copied from one floor to. 5 of ACI 318-08 permits headed shear stud reinforcement conforming to. 1—Plan at slab edge of two-way slab with added S&T reinforcement. 1R-08, Guide to Shear Reinforcement for Slabs, and ACI 421. Open the excel file and the user can locate the proper. Typically, a flat slab is made with reinforced concrete, in which rebar is criss-crossed in the forms to provide support and reinforcement once the concrete is poured and hardened. unit has been poured and cured according to Section 702 Do not remove slab falsework until the. INTRODUCTION What is a flat slab? •a reinforced concrete slab supported directly by concrete columns without the use of beams 4. throughout the world continues to accelerate because of the significant benefits for developers, architects, engineers, contractors and end users. c flat slab and I need drop down panels over my r. Research on the punching shear strength, Vu, of slab-column connections of reinforced and prestressed concrete flat plates with spandrel beams has received considerable attention by the engineering profession in recent years. in flat slabs and post-tensioned slabs, at slab to shearwall junctions, beam to col-umn junctions and within footings and foundation slabs. How to read slab reinforcement drawing. This paper is part of an ongoing research program conducted at the concrete laboratory of the Faulty of Engineering, Cairo University to assess the contribution of horizontal flexural reinforcement and vertical shear reinforcement on the punching behavior of reinforced concrete flat slabs. result is a lightly reinforced slab designed to offset the effects of temperature and shrinkage of the concrete. Two-Way Flat Plate Concrete Floor System Analysis and Design. • Conforms to ASTM A615. Designing for shear in slabs • When shear reinforcement is not required –e. Flat slabs are appropriate for most floor situations and also for irregular column layouts, curved floor shapes, ramps etc. Cantilever overhang inclined slab supported from a reinforced concrete beam at the roof edge. Section 11. Reinforced Concrete Pitched Roof Apex Slab Reinforcement Detail. a flat slab is an R. Reinforced hand book by Reynold. FLAT PLATE SLAB—A flat slab without drop panels or column capitals. Inroduction When the ratio (L/S) is less than 2. While making structural drawings of the reinforced concrete slab, the slabs are abbreviated to "r. Flat plate concrete floor system does not use beams between columns or drop panels and it is usually suited. The Wire Reinforcing Institute recommends the use of the Subgrade Drag Theory for slabs up to 150 feet in length. Cantilever overhang inclined slab supported from a reinforced concrete beam at the roof edge. The first Reinforced Concrete Design Manual (formerly titled ACI Design Handbook) was developed in. The top of ribbed slab is normally thin and the bottom grid lines are generally ribs which are laid perpendicular to each other with equal depth. If architectural or other requirements rule out capitals or drop panels, the shear strength can be improved by using metal shear heads or some other form of shear reinforcement, but the costs may be high. Ideally, the reinforcement process starts with clearing the staging for levels, design etc from the engineer. The thickness of most long-span flat slabs, two-way slabs without beams, is controlled by the shear strength of the concrete slab surrounding the supporting column. The study is arranged by Civil Engineer: ARAS JAMAL MAGID DESIGN AND DETAILING OF FLAT SLAB •Introduction •Benefits •Design Cnsiderations •Analysis of Flat Slab •Detailing 1 Introduction: A flat slab is a reinforced concrete slab supported directly by concrete columns without the use of beams. Two way slab Reinforcement Detailing. A typical Two-Way Concrete Flat Slab weighs between and has a lifespan of roughly. This research is devoted to investigate the behavior of reinforced concrete slabs loaded and exposed to fire flame for different durations. Reinforcement detail for a waffle slab support on a reinforced concrete main frame end slab beam. reinforcement indicated for rectangular top slabs, risers and bases shall be reinforcement for rectangular drainage units (cast in place or precast) bar utilized, location of scoops, formed inverts, sumps and drains. This article presents an alternative method for designing concrete flat slabs subjected to flexure-induced punching. The structural frame consists of four columns, two beams and one slab. A cantilever slab 200 mm thick is 1. The flat plate system may save money on formwork, but it requires the use of a heavier slab than a flat slab system. It is divided into three sections including “Details and Detailing of Concrete Reinforcement (ACI 315-99),” “Manual of Engineering and Placing Drawings for Reinforced Concrete Structures (ACI 315R-04),” and supporting reference data. The slab may be supported by walls or by reinforced concrete beams usually cast monolithically with the slab or by structural steel beams or by columns, or by the ground. Typical structure/reinforcement detail of cutout in slab and walls like cutout close to bottom raft, cutout close to floor slab, Cutout along beam column strip in flat slab, cutout in mid of slab etc. Useful connection for designing for hybrid composite structures. Usually, when a slab is supported by a beam the support is considered to be pinned. see plans for elevations, drainage structure locations, type of grate units shall require submission of working drawings. other than minor changes approved by the engineer. The effects of flexural reinforcement and shear reinforcement on the punching shear strength of slab-column connections are analyzed in this study. " The above definition is very broad and encompasses the various possible column supported two-way slabs mentioned earlier. The suspended reinforced concrete slab is tied into the external capping beam at floor level. reinforcement details. The analysis and design follow the equivalent frame analysis method of the ACI code, which considers a one-bay wide strip of the floor system as a continuous frame. Ahmed, and Brahim Benmokrane. mm bars as capital reinforcement, mm dia stirrups at mm, column capital, column. crack control in toppings for precast flat slab bridge deck construction by lazaro alfonso a thesis presented to the graduate school of the university of florida in. Top and Bottom Clear Cover is 25 mm; Development length. result is a lightly reinforced slab designed to offset the effects of temperature and shrinkage of the concrete. Section 11. For ETABS ® 2016. Sandwich slab reinforcement details In reality, sandwich slabs are ribbed slabs with a slab placed both to their upper and lower surface. Fig: Deflection profile of Flat slab 1. Once designed, detailed reinforcement drawings and accurate material quantities are automatically generated for the whole building, meaning you can provide cost options early in the design process. Advantages of Flat Slab. Bar bending schedule provides the reinforcement calculation for reinforced concrete beam. A flat slab may come in the form of solid slab or contain recesses developed on the soffit in. Drawing contains about 20 types of different cutout structure detail. Reinforcement implementation, static and dynamic analysis. The graph illustrates two main points. Usually, when a slab is supported by a beam the support is considered to be pinned. Design the slab using the data given below; Purpose of building - Residential f ck = 25 Mpa f yk = 460 Mpa Concrete cover = 25 mm Height of block wall = 2. • Conforms to ASTM A615. Where δx and δy is the deflection at midspan in X and Y direction and lx and ly is the span length in X and Y direction. Flat slab reinforcement drawings in Title/Summary Flat Slab Analysis and Design The analysis and design follow the equivalent frame analysis method of the ACI code, which considers a one-bay wide strip of the floor system as a continuous frame. Design the slab using the data given below; Purpose of building - Residential f ck = 25 Mpa f yk = 460 Mpa Concrete cover = 25 mm Height of block wall = 2. Reinforcement detail for a waffle slab support on a reinforced concrete main frame end slab beam. 4 Flat slab without drop panel and column head. reinforcement and steel plate subjected to gravity loadings using the structural experiments and numerical analysis in tall buildings. the flat slab - column connection is be made by introducing shear reinforcement in the control perimeter. The principal features of a flat slab floor are a flat soffit, simple formwork and easy construction. Slab supported on two sides and bending takes place predominantly in one direction only is called One Way Slab. the following are the advantages of flat slab construction: 1. The thickness of the slab has to be increased or the slab has to be shear reinforced. Let's take an example the below two-way slab diagram. Reinforcement details of concrete beams and slabs should specify clearly about cover to reinforcement, length of reinforcement, curtailment of reinforcement, number and diameter of See more. Useful connection for designing for hybrid composite structures. the tensile membrane action of reinforced concrete slabs and the use of structural integrity reinforcement to prevent progressive collapse after punching failure of slab-column connections. The terms are used interchangeably. 13 of BS 8110. Section 11. If adjacent spans are not equal, the extension of the -ve reinforcement beyond each face shall be based on the longer span. Slab thickne See more. 5 for base plate connection). Usually, when a slab is supported by a beam the support is considered to be pinned. Moreover, the design and construction details of this parking garage are used to illustrate code requirements, flat-slab analysis, design details, and the construction of GFRP-RC flat slabs. Reinforced Concrete Inverted Upstand Beam Slab Support Details. The flat plate system may save money on formwork, but it requires the use of a heavier slab than a flat slab system. Best Practices for Concrete Slab Design Using Revit® Structure Florian Aalami - ADAPT Corporation SE 100-3 Intended for structural engineers using Revit Structure (RST), this class will equip you with the skills needed to carry out detailed designs of c oncrete slab and foundation models using ADAPT® software. The load is transferred directly from slab to column in the flat slab. Flat slab reinforcement drawings in Title/Summary Flat Slab Analysis and Design The analysis and design follow the equivalent frame analysis method of the ACI code, which considers a one-bay wide strip of the floor system as a continuous frame. Find PowerPoint Presentations and Slides using the power of XPowerPoint. Detailing of reinforcements in beams and slabs plays an important role in providing strength, durability and cost optimization. 715m long, and it is supporting a blockwork load at 1. 2 Left click Jurisdiction Publications. The tension bars resist tension from moment which will occur in the bottom of the beam in this case; the stirrups resist shear which is highest near the supports under. This is a CAD dwg drawing detail of a Reinforced Concrete Flat Slab Direct Steel Column Concealed Support. 2) Partial section of a flat plate structure. Reinforced concrete flat plate system, Eugene, USA (S. MARK LENGTH REINF. reinforcement indicated for rectangular top slabs, risers and bases shall be reinforcement for rectangular drainage units (cast in place or precast) bar utilized, location of scoops, formed inverts, sumps and drains. c columns to prevent punching shear. Analysis of flat sAnalysis of flat sllab. 715m long, and it is supporting a blockwork load at 1. Designing for shear in slabs • When shear reinforcement is not required –e. In conventional slab-beam system, the load is transferred from slab to beam and ultimately beam to the column. Turner constructed flat slabs in U. Slab supported on two sides and bending takes place predominantly in one direction only is called One Way Slab. • Introduction • Benefits • Design Considerations • Design Methodology • Analysis of Flat Slab • Detailing INTRODUCTION. They are also used where uses of beams are not required. The growth in the use of CCL Post-Tensioned Slabs. layout configuration, the reinforcing bars can be placed in two layers (one mat) or four layers (two mats) at both the top and bottom. 700-04 - General Notes & Details for Flat Slabs 804-01 - Fiber Reinforced Slope Protection Paving Details. The breadth of this strip, be, for various typical cases is shown in Figure 3. One-way slabs 1. Details of openings in reinforced concrete slab are required to be provided in buildings to provide way for lifts, or cables, ducts or other instrument to pass through one floor to other floors, mainly in the case of industrial buildings. Flat plate slab is that in which slab is directly supported on columns without column capital, drop panel or beams. Special reinforcement details: anti-crack. These CAD drawings include more than 100 high-quality DWG files for free download. Punching shear reinforcement quantities and drawings. FOOTINGS—That part of the foundation of a structure which rests on earth. c flat slab and I need drop down panels over my r. The benefits of choosing flat slabs include a minimum depth solution, speed of construction, flexibility in the plan layout (both in terms of the shape and column layout), a flat soffit (clean finishes and freedom of layout of services) and scope and space for. Reinforcement detailing of a slab is done based on its support conditions. Around the columns, the shear stresses create a high risk for punching shear. other than minor changes approved by the engineer. INTRODUCTION What is a flat slab? •a reinforced concrete slab supported directly by concrete columns without the use of beams 4. 3 Learning out Come • Review of detailing of beams • Continuous rectangular beams • Cantilever rectangular beams • Flanged beams • Introduction to detailing of slab • One way slab 4. 1 nor the "temperature tendons" shown in Fig. The reinforcement can be copied from one floor to. Section 11. The load is transferred directly from slab to column in the flat slab. Although, the approach is promising, it was not implemented to the Canadian code so far. " The above definition is very broad and encompasses the various possible column supported two-way slabs mentioned earlier. Cast parapet concrete after slab falsework has been struck. Slab thickne See more. Slab Design Guide - Flat Slab Additional Reinforcing Requirements - PlanMarketplace, your source for quality CAD files, Plans, and Details. 3 of ACI 318 allows the use of shear reinforcement for slabs and footings in the form of bars, as in the vertical legs of stirrups. Punching Shear Behavior of Flat Slabs Reinforced with Glass Fiber-Reinforced Polymer Bars by Christian Dulude, Mohamed Hassan, Ehab A. Two-Way Flat Plate Concrete Floor System Analysis and Design The concrete floor slab system shown below is for an intermediate floor to be designed considering partition weight = 20 psf, and unfactored live load = 40 psf. mm bars as capital reinforcement, mm bent up bars mm both ways, mm alternate bent up bars mm both ways, nos. Flat plate concrete floor system does not use beams between. 0m from the fixed end. The graph illustrates two main points. The top (steel) reinforcement is important. Proprietary punching shear reinforcement systems Thin flat slab construction will almost certainly require punching shear reinforcement at columns. The thickness of most long-span flat slabs, two-way slabs without beams, is controlled by the shear strength of the concrete slab surrounding the supporting column. result is a lightly reinforced slab designed to offset the effects of temperature and shrinkage of the concrete. We are thankful to Er. In this case, reinforcement bars should be properly detailed between the columns and slabs. Reinforcement details of concrete beams and slabs should specify clearly about cover to reinforcement, length of reinforcement, curtailment of reinforcement, number and diameter of See more. For residential construction, tendons at 48 inches on center are common. All slab reinforcement should be anchored property at discontinuous edges. Reinforced Concrete Hidden ( concealed ) Beam Cross Section Detail within the slab thickness. The thickness of most long-span flat slabs, two-way slabs without beams, is controlled by the shear strength of the concrete slab surrounding the supporting column. Drawing contains about 20 types of different cutout structure detail. Flat slabs are less labour intensive, simplify the installation of services and can accommodate more floors within restricted heights. Analysis of flat sAnalysis of flat sllab. In order to prevent the column from puncturing the slab, appropriate shear reinforcement, slab thicknesses, and column geometries are required. The flat slab belongs to a reinforced concrete slab that may or may not contain drops. If adjacent spans are not equal, the extension of the –ve reinforcement beyond each face shall be based on the longer span. The effects of flexural reinforcement and shear reinforcement on the punching shear strength of slab-column connections are analyzed in this study. The analysis and design follow the equivalent frame analysis method of the ACI code, which considers a one-bay wide strip of the floor system as a continuous frame. The top of ribbed slab is normally thin and the bottom grid lines are generally ribs which are laid perpendicular to each other with equal depth. Upward soil pressures may be applied to the floor slab in situations where it is acting as a matt foundation and the building point loads on the foundation results in an upward pressure on the floor slab. A flat slab consists of a reinforced concrete slab that is directly supported by concrete columns. Must watch basics of flat slab for better understanding from the link given below ; 👇 https:. Best Practices for Concrete Slab Design Using Revit® Structure Florian Aalami - ADAPT Corporation SE 100-3 Intended for structural engineers using Revit Structure (RST), this class will equip you with the skills needed to carry out detailed designs of c oncrete slab and foundation models using ADAPT® software. Diagram showing examples of flat plate and flat slabs. Although generally preceded by flexural failure, punching shear is a brittle failure mode and the risk of progressive collapse requires a higher safety class in structura. 4 Flat slab without drop panel and column head. If the use of flat plate is not adequate, the use of flat slab system with drop panels. ACI 318 emphasizes the importance of anchorage details and accurate placement of the shear reinforcement, especially in thin slabs. If the shear resistance is increased, slab. To obtain maximum benefit from CCL Post-Tensioned Slabs it is recommended that they are incorporated. It is divided into three sections including "Details and Detailing of Concrete Reinforcement (ACI 315-99)," "Manual of Engineering and Placing Drawings for Reinforced Concrete Structures (ACI 315R-04)," and supporting reference data. The Bottom slab reinforcement drawing appears in the Drawing view. Flat Slab Design 2. How to read slab reinforcement drawing. The slab may be supported by walls, by reinforced concrete beams usually cast monolithically with the slab, by structural steel beams, by columns, or by the ground. For Section thru Slab and Slab Drain Details, see Sh. Connection is made concealed for aesthetic reasons inside the slab thickness. Details Title Rationalization of Flat Slab Reinforcement Pages 8 Language English Format MP4 Size 1 MB Download Method Direct Download Download. Reinforcement details of concrete beams and slabs should specify clearly about cover to reinforcement, length of reinforcement, curtailment of reinforcement, number and diameter of See more. Inroduction When the ratio (L/S) is less than 2. What is a Slab? Slabs are constructed to provide flat surfaces, usually horizontal in building floors, roofs, bridges, and other types of structures. Construction detail. Punching Shear Behavior of Flat Slabs Reinforced with Glass Fiber-Reinforced Polymer Bars by Christian Dulude, Mohamed Hassan, Ehab A. DESIGN AND DETAILING OF FLAT SLAB ESE SOEDARSONO HS 27 FEBRUARY 2002 CONTENT • Introduction • Benefits • Design Considerations • Design Methodology • Analysis of Flat Slab • Detailing INTRODUCTION What is a flat slab? • a reinforced concrete slab supported directly by concrete columns without the use of beams INTRODUCTION Flat slab Flat slab with drop panels Flat slab with column. Detailing and design of earthquake resistant buildings made of reinforced concrete. see plans for elevations, drainage structure locations, type of grate units shall require submission of working drawings. The mesh reinforcement in the slab is placed in the top with 1" covers. construction details of a r. mm bars as capital reinforcement, mm dia stirrups at mm, column capital, column. Refer to Fig. For the flat slab with the general arrangement as shown below, Reinforcement of slab in the longer direction = [email protected] articles, drawings, textbooks, and. flat slab in metric units. Design the slab using the data given below; Purpose of building - Residential f ck = 25 Mpa f yk = 460 Mpa Concrete cover = 25 mm Height of block wall = 2. Drop panels play. Reinforced Concrete Pitched Roof Apex Slab Reinforcement Detail. Two types of slab supports, middle continuous slab as well as end slab support. these drawings are for the use of the consultant's client only. ACI 318-08 allows the use of shear reinforcement for slabs and footings in the form of bars, as in the vertical legs of stirrups. Two-Way Flat Plate Concrete Floor System Analysis and Design The concrete floor slab system shown below is for an intermediate floor to be designed considering partition weight = 20 psf, and unfactored live load = 40 psf. The punching shear reinforcement quantities in waffle slabs, flat slabs and mat foundations, that have been calculated in accordance with the methods explained in this webpage (tangential stress or in accordance with code criteria) are listed in the takeoff report of the job (File > Print. Download these free AutoCAD files of Construction details for your CAD projects. REINFORCEMENT Conventional Reinforcing Steel • Typically used in base slabs and flat slab tops. All slab reinforcement should be anchored property at discontinuous edges. Drawing labels, details, and other text information extracted from the CAD file: drop panel, column capital, column, mm bars mm both ways as drop panel reinforcement, nos. dons and reinforcement in a typical floor system. Ideally, the reinforcement process starts with clearing the staging for levels, design etc from the engineer. Ready made structural designed drawings for an industrial building with elevated crane and mezzanine floor. The top (steel) reinforcement is important. ACI 318 emphasizes the importance of anchorage details and accurate placement of the shear reinforcement, especially in thin slabs. Slab may be supported on walls or beams or columns. Concrete cover for reinforcement in Slabs, Footings, Beams, Columns. The mesh reinforcement in the slab is placed in the top with 1" covers. Construction of post-tensioned slabs on grade is very similar to using reinforcing steel, except for the tensioning step. In two way slab main reinforcement is provided along both. Refer to Fig. Flat Slab Analysis and Design designs beamless concrete slab floors (flat slab or waffle slab) in accordance with ACI 318. The results were applied to the eccentricity shear stress model presented in ACI 318-08. The concrete specimens and slabs were subjected to fire flame. What is a flat slab? • a reinforced concrete slab supported directly by concrete columns without the use of beams INTRODUCTION. The study is arranged by Civil Engineer: ARAS JAMAL MAGID DESIGN AND DETAILING OF FLAT SLAB •Introduction •Benefits •Design Cnsiderations •Analysis of Flat Slab •Detailing 1 Introduction: A flat slab is a reinforced concrete slab supported directly by concrete columns without the use of beams. What is Flat Slab? The flat slab is a two-way reinforced concrete slab that usually does not have beams and girders, and the loads are transferred directly to the supporting concrete columns. The load is transferred directly from slab to column in the flat slab. For residential construction, tendons at 48 inches on center are common. Special characteristics of rc slabs 3. Research on the punching shear strength, Vu, of slab-column connections of reinforced and prestressed concrete flat plates with spandrel beams has received considerable attention by the engineering profession in recent years. Click on the Slab Reinforcement dynamic block ribbon button under Add-ins tab or open the Tool Palettes under View tab in Autodesk® AutoCAD®. 75 m Unit weight of concrete = 25 kN/m 3 Unit weight of block with renderings. The flat plate system may save money on formwork, but it requires the use of a heavier slab than a flat slab system. Main bars are 12 mm in diameter @ 150 mm centre to centre spacing ; Distribution bars are 8 mm in diameter @ 150 mm centre to centre spacing. Flat slab Flat slab with drop panels. A Reinforced Concrete Slab is one of the most important structural elements of modern buildings. In two way slab main reinforcement is provided along both. Slabs Beam Reinforcement Detailing 1. Punching shear reinforcement quantities and drawings. mm bars as capital reinforcement, mm bent up bars mm both ways, mm alternate bent up bars mm both ways, nos. The four test specimens were prepared to model the interior bay flat plate slab-column connections in a typical flat plate slab building. The analysis and design follow the equivalent frame analysis method of the ACI code, which considers a one-bay wide strip of the floor system as a continuous frame. 2 DETAILING OF BEAM &SLAB 3. dons and reinforcement in a typical floor system. fal sw ork t hp u c nm i d l ong- ti m ed a fc hsp u v for thi ns au dl c p , f orth ed lc i n a w k,y m In setting falsework for reinforced. 4 also sets the maximum spacing of mat reinforcement at 18 in. ,max 0, 0 ck dd Rd sys v d sys cRdcck v c f VV Vkk bdVk f V kbd ψ ψ γ γ =≥→≥ = k. It contains columns with or without flared column heads. Flat Slab Design 2. The Bottom slab reinforcement drawing appears in the Drawing view. Slide 2 Typical Beam Reinforcement Tension Reinforcement Compression Reinforcement Stirrups This slide shows the typical reinforcement cage for a simple span concrete beam. The growth in the use of CCL Post-Tensioned Slabs. Connection is made concealed for aesthetic reasons inside the slab thickness. The concrete floor slab system shown below is for an intermediate floor to be designed considering partition weight = 20 psf, and unfactored live load = 40 psf. Firstly, how with increasing span the difference in cost between reinforced and post-tensioned concrete flat slabs also increases. In the Eurocodes, the analysis of flat slab is the same as that recommended in BS 8110. mbeya university of science & technology 1 mbeya university of science and technology department of civil engineering reinforced concrete design and detailing ii (ceh7422) nta level 7b- second semester lecture 2 part a eng. Although all multi-story buildings require multiple small slab penetrations for routing of plumbing, fire protection piping, and ductwork between floors. Design the slab using the data given below; Purpose of building - Residential f ck = 25 Mpa f yk = 460 Mpa Concrete cover = 25 mm Height of block wall = 2. Two-way concrete slabs with openings the static system and the design of reinforcement. If the use of flat plate is not adequate, the use of flat slab system with drop panels. Flat slab reinforcement details in Description PANOPLIA It creates all required drawings and reinforcement details in 2D and 3D, it produces precise quantity surveying reports for all materials and tasks or it can use data from several structural analysis applications. This is a CAD dwg drawing detail of a Reinforced Concrete Flat Slab Direct Steel Column Concealed Support. provisions for designing flat slabs, especially the first punching-shear equation for two-way slabs in the new CSA S806 (CSA 2012) standard. Detailing and design of earthquake resistant buildings made of reinforced concrete. The minimum length of different reinforcement in flat slabs should be as shown in Fig. usually one and two-way spanning slabs • Punching shear -e. Has anyone any suggestions how I should detail my steel reinforcing bars? Should I lap the bottom bars in the shear head with the top reinforcement in the slab or the bottom reinforcement in the slab?. Plan view of a reinforced concrete floor slab with slab thickness and reinforcement, including a 2. The concrete specimens and slabs were subjected to fire flame. Thickness of concrete slab depends on loads and size of the slab. Slab supported directly by columns are called flat slab. Usually, there are no beams to provide support to the slab. This article presents an alternative method for designing concrete flat slabs subjected to flexure-induced punching. A tendon is defined as sheathing (duct), the strand(s) within it and the. ACI 360, "Design of Slabs-on-Grade", refers to this as a Type B slab. Flat plate slab is that in which slab is directly supported on columns without column capital, drop panel or beams. Flat slabs are mostly used in large industrial structures, parking garages, ramps, warehouse, high rise buildings and hotels. A civil engineer must know all the aspects regarding the flat floor system. If adjacent spans are not equal, the extension of the -ve reinforcement beyond each face shall be based on the longer span. For Section thru Slab and Slab Drain Details, see Sh. Design Of Reinforced Concrete Structures ii Two-Way Slabs 1 1. Civil structural engineering - Flat slab design 1. Progressive Collapse of Reinforced Concrete Flat Slab Structures Justin Russell, MEng (Hons) Thesis submitted to The University of Nottingham for the degree of Doctor of Philosophy. CAD Models In This Category. In two way slab main reinforcement is provided along both. The suspended reinforced concrete slab is tied into the external capping beam at floor level. The top of ribbed slab is normally thin and the bottom grid lines are generally ribs which are laid perpendicular to each other with equal depth. Bridge Drawings and Details. Tip: To edit/modify drawing elements and their contents, click ( View Drawings Components ). While making structural drawings of the reinforced concrete slab, the slabs are abbreviated to "r. Reinforcement detail for a waffle slab support on a reinforced concrete main frame end slab beam.