One way slab design steps pdf

Slabs are usually used in floor and roof construction. If slab is supported on all four sides and r shorter side longer side 2 is one way slab lb design of oneway slabs 7 8. The two classifications are oneway slab and twoway slab. Chajjas and verandahs are an practical example of one way slab. Design of slab examples and tutorials by sharifah maszura syed mohsin example 1. Determine moments at critical sections in each direction, normally the negative moments at supports and positive moment near midspan.

Design steps of one way slab rcc free download as pdf file. Reinforced concrete design 1 design of slab examples. Load transfer in a oneway slab, b twoway slab nilson fig. Designing of slabs depends upon whether it is a oneway or a two way slab, the end conditions and the loading. The design steps have been presented in the following question how do i degisn two way slab. Design of one way slabs as per is 456 worked step by step. 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. The load on the slab is carried by the short span in one direction. Design procedure steps for one way slab slab design steps.

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. The basic design procedure of a two way slab system has five steps. Calculate aspect ratio aspect ratio 2 longer spanshorter span 2. Calculation of approximate depth from deflection criteria cl 23. The slab has to carry a distributed permanent action of 1. One way slab here i solve a probleam based on the one way slab, the diamentions are provided in the probleam 1st determine the aspect ration and with respect to the aspect ratio the type of slab.

For those who do not know what are the des ign requirements of a slab. Procedure steps for one way slab in the below section. They may be supported on two opposite sides only fig. Reinforced concrete slab design and detailing guide is456. Distribute moments transverse at critical sections to column and middlestrip and if. Direct design method ddm for slab systems with or without beams loaded only. Chapter 3 design of rectangular beams and oneway slabs. Reinforced concrete design 1 design of slab examples and.

Simply supported one way slab a rectangular reinforced concrete slab is simplysupported on two masonry walls 250 mm thick and 3. Oneway and two way slabs one way slabs transfer the imposed loads in one direction only. Design of one way slabs as per is 456 worked step by. Generally all the cantilever slabs are one way slab.

The basic design procedure of a twoway slab system has five steps. There are two types of slab classification based on the direction of bending occurs in these slabs. One way slabs are such slabs in which the loads are shared only by the shorter direction of the slab. However main reinforcement bar and distribution bar in transverse direction. Rectangular beams and one way slabs page 3 of 9 design of rectangular beams and one way slabs continued a. Following are the rcc slab design and detailing guidelines.

Based on the crack pattern and the analysis of the structural performance, the design guidelines of reinforcement details of stepped slabs were proposed. One way slab being supported on two opposite sides only leads to the structural action in single direction. According to the way loads are transferred to supporting beams and columns, slabs are classified into two types. Two way slab is a slab supported by beams on all the four sides and the loads are carried by the supports along both directions, it is known as two way slab. Define the term slab, one way slab, two way slab, shrinkage. Here ratio of longer span of slab to the shorter span of slab is greater than 2. Reinforced concrete oneway slabs with large steps request pdf. Oneway and twoway slabs university of asia pacific.