It is for that reason that the flat roof construction manual focuses on the subject of designing energysaving flat roofs free from damage. Ec2 webinar autumn 2016 lecture 52 designing for shear in slabs when shear reinforcement is not required e. The main objective of the study is to study method of analysis and. The concrete society, technical report 64 guide to the. Design considerations for reinforced concrete flat slab floor. In the use of high grade concrete and steel, quality plays a major role. Design considerations for reinforced concrete flat slab floor system.
Flat slab analysis, design and detailing pdf flat slab system is an important division of concrete floor system. Slab design will consider all aspect like bending moment, shear force, cracking and area of reinforcement. Slab supported on two sides and bending takes place predominantly in one direction only is called one way slab. In addition there is reinforcing steel in the floor at the columns to transfer the loads. Slabs and flat slabs lecture 5 19 th october 2016 contents lecture 5 designing for shear in slabs including punching shear detailing solid slabs flat slab design includes flexure worked example exercise punching shear. Reinforced slab is a flat element that used in floors, roofs and walls of buildings and as the decks of bridges. Reinforcement l beam reinforcement details l reinforcement detailing of beam l steel reinforcement. 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 consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design. It will entirely ease you to look guide flat slab manual design bs as you such as. This thorough reference guide for the design of reinforced concrete structures is largely based on eurocode 2 ec2, plus other european design standards such as eurocode 8 ec8, where appropriate. Structures design office structures detailing manual. The procedure is consistent with the navys current blastresistant design manual navfac p397 and is based on an equivalent singledegreeoffreedom sdof model of a flat slab. Analysis of flat sanalysis of flat sllabab punching shear 1. Manual for the design of hollow core slabs second edition by donald r.
Best practice guide, rationalisation of flat slab reinforcement. Flat slab seminar report, ppt, pdf for civil engineering. In this post, we are going to show how we can analyse and design cantilever slabs. L center to center distance between the support b depth of slab. July 2016 lrfd bridge design 115 for skewed abutments, acute angles are not allowed at corners where wingwalls intersect with the abutment stem. Flat slabs are slabs that are supported directly by columns without floor beams. Slab may be supported on walls or beams or columns. Reinforced concrete design 1 design of slab examples. Reinforcement detailing of reinforced concrete slabs. Detailing solid slabs flat slab design includes flexure worked example exercise punching shear.
Find effective depth d, assuming reinforcement diameter. Ec2 section 8 detailing of reinforcement general rules. Content introduction benefits design considerations design methodology analysis of flat slab detailing. Design considerations for reinforced concrete flat slab. A civil engineer must know all the aspects regarding the flat floor system. N1759 ncel note by sponsored explosives safety board. Slab supported directly by columns are called flat slab.
Typical detailing of reinforcements in beams and slabs. Rta structural drafting steel reinforcement detailing and detailing manual otb005 issue 1 revision 2 05 march 2010 page 3 of 3 the lap splice length of bars in tension shall be not less than the development length, lsy. Different types of shear reinforcement used at column heads. This is why we present the ebook compilations in this website. Two way slab is a slab in which the ratio of longer side to the shorter side is less than or equal to two. Ec2 section 8 detailing of reinforcement general rules bar spacing, minimum bend diameter anchorage of reinforcement lapping of bars large bars, bundled bars ec2 section 9 detailing of members and particular rules beams solid slabs flat slabs columns walls deep beams foundations. Feb 15, 2015 flat slab a transverse reinforcement system medo mounir. Special instructions for links within depth of slab or beam. To achieve this, architects normally extend the slab beyond the ground floor building line, thereby forming a cantilever. Finally, an example of a flat slab floor system is presented to illustrate the practice. The major revisions in relation to design and detailing of reinforced. If you require any further detailed advice regarding the design and detailing of punching shear reinforcement to either the ec2 or bs8110 standards, please do not. Aug 27, 2015 guide to the design and construction of reinforced concrete flat slabs contents membersof the projectsteeringgroup list of tables vii iv list of figures v 1.
Department of mechanics, materials and structures english. On the structural detailing tab of the options dialog, for reinforcement, click search. To make distinctions between the equations quoted from the code and the equations derived in this manual, the former will be prefixed by ceqn and the latter by eqn. Architectural engineering senior thesis washington park condominiums final. The critical section of the slab is just outside the outside edge of the beam supporting the slab.
Manual for detailing reinforced concrete structures to ec2. Area objects are used to model slabs, openings, soil supports, walls, ramps, and surface loads. Cantilever slabs are common features in buildings due to the need to have bigger spaces at upper floors. Guide to the design and construction of reinforced concrete flat slabs 1. These structures detailing manual examples are provided in pdf documents that are structured to illustrate the content that is expected to be seen on each sheet at each level of completion based on the requirements set forth in the fdot design manual fdm, sections 121.
The safe slab is idealized as an assemblage of area, line, tendon, and point objects. Saccoman, chairperson james beerbower ernest markle kevin boyle james markle jeffrey butler milo j. Manual for design and detailing of reinforced concrete to the september 20 code of practice for structural use of concrete 20 iv the new zealand standard nzs 3101 in most of the provisions of. Manual and countless calculations could lead to numerous mistakes and delay in design. There are many advantages of flat slab such as increased head room, easier flow of mechanical and electrical services. Guide to the design and construction of reinforced concrete flat slab. Flat slabs can offer economical solutions to wider floor spans in a reinforced concrete building. Flat slab analysis, design and detailing pdf civil. All slab reinforcement should be anchored property at discontinuous edges. Department of mechanics, materials and structures english courses reinforced concrete structures code. Aci 315 99 details detailing of concrete reinforcement. The lateral loads are independently resisted by shear walls.
A rectangular reinforced concrete slab is simplysupported on two masonry walls 250 mm thick and 3. This manual intends to provide a general overview about the design procedure of a two way post tensioned slab and a girder. Rules and guidelines for detailing of reinforcement that might be difficult to interpret or understand were identified by an initial study of the european standard. The minimum length of different reinforcement in flat slabs should be as shown in fig. Twoway concrete floor slab with beams design and detailing design the slab system shown in figure 1 for an intermediate floor where the story height 12 ft, column crosssectional dimensions 18 in. Bookmark file pdf flat slab manual design bs flat slab manual design bs when people should go to the ebook stores, search foundation by shop, shelf by shelf, it is really problematic. Bridge manual standard drawings bureau of structures.
Instead, provide a 6 inch minimum chamfer or square up the corner to the wingwall at all acute angle corners. For b oth one way and two way slab with an example. Guide to the design and construction of reinforced concrete. Wisconsin department of transportation bridge manual. The slab has to carry a distributed permanent action of 1. The materials to be used are grade c25 concrete and grade 500 reinforcement. Anchorage lap lengths for slabs manual for the design of. Little knowledge and attention of the construction community about the.
This practical design manual intends to outline practice of detailed design and detailings of reinforced concrete work to the code. Effective span of slab shall be lesser of the two 1. How to design flat slab with drop panel in robot in this video, we will. Flat plate concrete floor system does not use beams between columns or. Provide shrinkage and temperature reinforcement per article 5. So these schedules are to be prepared by the engineers in the design office only.
Twoway joist concrete slab floor waffle slab system analysis and design design the concrete floor slab system shown below for an intermediate floor with partition weight of 50 psf, and unfactored live load of 100 psf. Design considerations for reinforced concrete flat slab floor system harshal deshpande1, radhika joshi2. Slab design reading assignment chapter 9 of text and, chapter of aci31802 introduction aci318 code provides two design procedures for slab systems. This document provides standards of practice for both the architectengineer ae and reinforcing steel detailer in showing reinforcing steel details. Reinforcement detailing of isolated footing in safe 2016 duration. Structural design of flat slabs to eurocode 2 structville.
Prepared for the pci hollow core slab producers committee john e. Rationalisation of flat slab reinforcement construct concrete. Sep 03, 2011 draw panel of slab and indicate maximum design moments, shears and in plane loads, if any, per unit width of slab. Detailing is an essential part of the design process. Manual for the design of concrete structures to eurocode 2. A flat slab is a reinforced concrete slab supported directly by concrete columns without the use of beams. Manual for design and detailing of reinforced concrete to the.
Reinforcement detailing free download as powerpoint presentation. Design manual to bs8110 linkstud psr limited co brooks forgings ltd doulton road cradley heath. If adjacent spans are not equal, the extension of the ve reinforcement beyond each face shall be based on the longer span. In flat plate floors, slab column connections are subjected to high shear stresses produced by the transfer of axial loads and bending moments between slab and columns. Aug 14, 2017 flat roof construction manual materials design applications. This guide provides recommendations for the efficient and economic reinforcement of concrete flat slabs. Manual for design of slabs, pile caps and footings. Reinforced concrete design 1 design of slab examples and. Reinforcement detailing of a slab is done based on its support conditions. Instead, the floor is heavily reinforced in both directions. Concrete slab and beam reinforcement detailing module.
Manual for design and detailing of reinforced concrete to the code. Manual for the design of reinforced concrete building. Flat slabs for efficient concrete construction construct concrete. Download file pdf flat slab manual design bs flat slab manual design bs flat slab design example part 1 how to design a flat slab, step by step explained in this video. A reinforced concrete flat slab floor is a significant advancement in the building technology. The beams reduce the available net clear ceiling height. Explore flat slab with free download of seminar report and ppt in pdf and doc format. Reinforced slab is a flat element that used in floors, roofs and walls of.
Punching of flat slabs design for shear at the column heads. First, find number of rods required for main reinforcement and distribution. Manual for design and detailings of reinforced concrete to. The institution of structural engineers the institution of civil engineers march 2000 manual for the design of reinforced concrete building structures to ec2. Manual for design and detailing of reinforced concrete to. It has been observed that possible failure mode of the reinforced concrete flat slabs is punching that occurs in the vicinity of a column. Flat slab analysis, design and detailing pdf civil engineering. For better view, please read this post in landscape mode if you are on the mobile device. Alternatively, click reinforcement menu h preferences. The reinforcing bars must extend into the slab beyond the critical section for a required length. Step 3 cover to reinforcement determine cover required to reinforcement as per tables 11.
Detailing lecture 9 16 th november 2017 reinforced concrete detailing to eurocode 2 ec2 section 8 detailing of reinforcement general rules bar spacing, minimum bend diameter anchorage of reinforcement lapping of bars large bars, bundled bars ec2 section 9 detailing of members and particular rules beams solid slabs flat slabs columns walls. Slab supported on two sides and bending takes place predominantly in one direction only is called one. Detailing of individual types of members are included in the respective sections for the types, though the section in the manual includes certain. Structural design of cantilever slabs solved example. To provide a complete idea, the stress computation, the reinforcement detailing, shear design, the jacking procedure etc. Atr crosssectional area of the transverse reinforcement along the development length lsy. Also explore the seminar topics paper on flat slab with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year civil engineering ce or ieee civil construction btech, be, mtech students for the year 2015 2016. V slab variable depth slab bridge design is a structural analysis and design software package developed for reinforced concrete flat or haunched slab bridges under the american association of state highway and transportation officials aashto lrfd bridge design specifications, 8th edition. Reinforcement details of concrete beams and slabs should specify clearly about cover to reinforcement, length of reinforcement, curtailment of reinforcement, number and diameter of reinforcement to be provided. Manual for design and detailings of reinforced concrete to code of practice for structural use of concrete 2004. In this post, we are going to explain how to calculate steel quantity for the slab. The distribution of reinforcement throughout the slab is based on the elastic. Details and detailing of concrete reinforcement 3153 must be correspondingly larger and meet microfilming standards in accordance with the association for information and image management formerly the national microfilm association publication modern drafting techniques for quality microreproductions. Twoway 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.
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