Jun 29, 2010 lecture series on design of reinforced concrete structures by prof. They may be supported on two opposite sides only fig. Yield line design has the advantages of economy, simplicity and versatility. The finite element method is commonly used to design the reinforcement in concrete slabs. Reinforced concrete design 1 design of slab examples and. Structural design of slabless sawtooth staircase structville. Flat slab analysis, design and detailing pdf civil engineering. Find depth of slab using deflection control criteria. A civil engineer must know all the aspects regarding the flat floor system. Jul 02, 2010 lecture series on design of reinforced concrete structures by prof.
Application of limit state method to rectangular beams for flexure, shear, bond and torsion. In this course, basic elements governed by bending, shear, axial forces or combination of them are identified and are considered as building blocks of the whole structure. Recommendations for finite element analysis for the design. Design procedure steps for one way slab slab design steps. It is capable of analysing any structure exposed to a dynamic response, soilstructure. International journal of pure and applied mathematics volume. Deisgn of 2 way slab nptel free download as pdf file.
Acces pdf design example 1 nptel design example 1 nptel when people should go to the ebook stores, search creation by shop, shelf by shelf, it is in point of fact problematic. Oneway and twoway slabs oneway slabs transfer the imposed. Analysis and design of flat slab and grid slab and their cost comparison. Basics of reinforced concrete slab design slabs are generally designed on the assumption that they consists of a number of beams of breadth one meter. Nptel civil engineering design of reinforced concrete. Design of cantilever slab spreadsheet engineering books. Design of the composite flooring slab with profiled sheets t153 ruukki for a residential building bachelorv whesis 2015.
This method is used even today for the design of flat slabs and flat plates and is known as the direct design method. Download limit state design of reinforced concrete by varghese p. Design the pile cap shown in the following figure with 12 in. Nptel video lectures, iit video lectures online, nptel youtube lectures. Design the slab following the provisions of the aci code. The two classifications are oneway slab and twoway slab. The construction and design of concrete slabs on grade d. Introduction concrete slabs on grade are a very common type of concrete construction. However, most of these structures are the assembly of several basic structural elements such as beams, columns, slabs, walls and foundations anim. Shear strength of beamless slabs usually a controlling factor. Oneway and twoway slabs university of asia pacific. Four long span composite slab specimens of 20 ft span length, using two different types of deck profiles, were built and tested experimentally.
Beside this, due to shear problems at column heads, the thickness of flat slab is greater. C limit state design is a method incorporated in structural engineering. Design of reinforced concrete structures is an introductory design course in civil engineering. A six storey building for a commercial complex has plan dimensions as shown in figure 1. Design of composite deck slab kamal b 1, alamelug 2, abinaya d 3 1 assistant professor, department of civil engineering, sri ramakrishna engineering college. Objectives and methods of analysis and design, and properties of concrete and. A reinforced concrete slab is built integrally with its supports and consists of equal span of 15 ft. This is why we present the ebook compilations in this website.
Design and analysis of retaining walls 3 f crib walls or coffer dams are cells or units to be filled with soil or builtup members of pieces of precast concrete or metal and are supported by anchor pieces embedded in the soil for. Design of slab examples and tutorials by sharifah maszura syed mohsin example 1. Without significantly increasing the slab depth and weight compared to those of composite slabs with typical span, it was found that these long span slabs showed good performance under the load tests. Design of two way slabs is 456 limit state method mumbai. It is based on a single story frame, featuring the equiva lent frame modeling of the aci code as an option. Presents a method of design consistent with bs 5950. Design of multistorey and high rise reinforced concrete buildings quickly and easily. Following are the rcc slab design and detailing guidelines. The processes of determining the design moments in sawtooth staircases have been presented in this post. Limit state is actually the state of a structure, which does not fit into a suitable design criteria. Dhang department of civil engineering indian institute of technology kharagpur lecture 14 design of slabs today, we shall start design of slabs. The composite slabs in question consist of profiled steel. Dhang, department of civil engineering, iit kharagpur. Analysis and design of steel deckconcrete composite slabs.
One way slab being supported on two opposite sides only leads to the structural action in single direction. Lec14 design of slabs part1 video lecture by prof n. International journal of pure and applied mathematics. Design of reinforced concrete structures design of reinforced concrete structures lecture series on design of reinforced concrete structures by prof. Structural engineers commonly use the equivalent frame. Adaptrc is for the analysis andor design o f reinforced concrete beams, slabs and floor systems. Proper selection of depth and detailing of reinforcements will safeguard against excessive deflections and. The building is located in seismic zone iii on a site with medium soil. Asce, secb course content slab on grades construction. Design of reinforced concrete structures nptel online. It will totally ease you to see guide design example 1 nptel as you such as.
Design of the composite flooring slab with profiled sheets t153 ruukki for a residential building, 35 pages, 1 appendix saimaa university of applied sciences, lappeenranta technology, civil and construction engineering civil and construction engineering bachelouv theviv 201. Pointlike supports of flat slabs c d c column without column head d column with fungiform column head in flat slabs the total load intensity should be carried in both perpendicular directions. Nancy debora assistant professor civil karunya university 2. In general, they are used to hold back or support soil banks and water or to maintain difference in the elevation of the ground surface on each of wall sides. Design shear strength of concrete in twoway slabs is to be determined. Nptel provides elearning through online web and video courses various streams. Design of reinforced concrete structures ii twoway slabs 1 1. Through our representatives we offer to interested parties throughout the world our assistance end support in the planning, design and construction of posttensioned buildings in general and posttensioned slabs in particular. Concrete slab design procedure7 design of continuous slab basics of reinforced concrete slab design slabs are generally designed on the assumption that they consists of a number of beams of breadth one. This condition occur when the slabs are connected monolithically with support. Different methods of design of reinforced concrete structures.
Before going to this topic, please read it there are two types of slab classification based on the direction of bending occurs in these slabs. Civil engineering design of concrete structures nptel. Slabs are usually used in floor and roof construction. Reinforced concrete slab design and detailing guide is456. Pile supported foundation pile cap analysis and design based on a geotechnical study, a pile supported foundation is required to support a heavily loaded building column. The slab has to carry a distributed permanent action of 1. Department of mechanics, materials and structures english. So, we have a few more lecturers, so today we shall start part 1. Isotropic slabs are a particular case in which mmxy. In order to simplify the analysis and to be able to use the superposition principle for evaluating the effect of load combinations, linear analysis is generally adopted even though concrete slabs normally have a pronounced nonlinear response. Design of slabs part 1 design of slabs part ii design of slabs part iii. Structural details of slab culverts 3 for spans less than 3.
Deisgn of 2 way slab nptel beam structure bending scribd. Distribution steel should be provided at the transverse direction. Lec23 analysis and design of slabs free download as powerpoint presentation. The minimum thickness can be determined by many factors. Simply supported one way slab a rectangular reinforced concrete slab is simplysupported on two masonry walls 250 mm thick and 3. Reinforced concrete slab design and detailing guidelines for depth of slab, loads on slab, reinforcement guide for oneway and twoway slabs as per is 456. Structural design of mat foundations conventional rigid method approximate flexible method foundations on sandy soils foundations on clays problems reference nptel advanced foundation engineering1 module 5 lectures 17 mat foundations topics 1. Bending will take place in the two directions in a dishlike form. Slabs where reinforcement with yield strength exceeding 60000 psi 0. A total of 71 design tables for both uniform and point load cases are included to aid selection of steel beam sizes depending on span and loading, depth of the concrete slab and shape of the deck profile used.
Two way slabs are such slabs in which the loads are shared by both the shorter and longer direction of the slab. The institution of structural engineers the institution of civil engineers march 2000 manual for the design of reinforced concrete building structures to ec2. Pdf analysis and design of flat slab and grid slab and. Design of reinforced concrete structures ii twoway slabs. It provides a comprehensive and integrated finite element analysis and design solution, including a stateoftheart user interface, visualization tools, and international design codes. A conventionally reinforced mat raft foundation is selected, proportioned and designed, such as to. The design bending moment of twoway restrained slab can be calculated as follows. Punching of flat slabs design for shear at th e column heads. Mattock professor of civil engineering and head, division of struct 1as and mechanics university of washington seattle, washington this paper presents design proposals for reinforced concrete corbels, based upon conclusions drawn from recent experimental studies of the behavior of. This project presents the yield line analysis which can be used to analyze and design different shapes of slabs.
Pile supported foundation pile cap analysis and design. Design of one way and two way slabs, design of staircases. Flat slab analysis, design and detailing pdf civil. Flat slab analysis, design and detailing pdf flat slab system is an important division of concrete floor system.
This second edition of limit state design of reinforced concrete is updated according to is 456. The design of these modern reinforced concrete structures may appear to be highly complex. Proper selection of depth and detailing of reinforcements will safeguard against excessive deflections and cracking of the cantilever slabs. Design all building components including slabs, beams, columns, shear walls and foundations apply a variety of loads like udl, point loads and external moments to themodel design steel trusses supported by concrete columns.
Civil engineering design of reinforced concrete structures nptel. Limit state of collapse and limit state of serviceability. Bending will take place in the two directions in a dishlike fo. Department of mechanics, materials and structures english courses reinforced concrete structures code. Oneway and twoway slabs oneway slabs transfer the imposed loads in one direction only. Here the ratio of longer span of slab to the shorter span of slab is less or equals to 2. One way slab design procedure with example design of one. Floor slabs can range from a simple residential basement slab to a heavyduty industrial floor. Lecture series on design of reinforced concrete structures by prof. Here are the steps for the design procedure for one way slab in steps. Caprani moment capacity at an arbitrary angle we examine the case of an orthotropic slab different moment capacities in different orthogonal directions. Equivalent frame method most commonly used method the flat slab structure is divided longitudinally and transversely into frames consisting of columns and strips of slabs with.
So, clear span plus effective depth of slab or beam. Manual for the design of reinforced concrete building. For those who do not know what are the des ign requirements of a slab. The construction and design of concrete slabs on grade. Flat slab flat slab are also known as beamless slab, is a type of slab in which the flooring slab is directly supported on columns without the agency of beam or girders. And this is your lecture number 14, design of slabs part 1. Accordingly, the designer has to learn the design of these basic reinforced concrete elements. In our case, in few next few days, we shall design slabs, so we shall take here slab only. Design of composite slabs and beams with steel decking. It was only in 1914 that nicholas proposed a method of analysis of flat slabs based on simple statics. The thickness of a floor slab must be determined early in design because the weight of the slab is an important part of the dead load of the structure. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext.