T-Beam Design Procedure | Limit State Method Of RCC Design

Learn the detail process to design a T-beam

A T-beam alias tee beam is mostly found in construction. It stands for a load-bearing structure that is formed with reinforced concrete, wood or metal, containing a t-shaped cross section.

This type of beam comprises of a flange and a rib. The top of the t-shaped cross section functions as a flange or compression member to withstand compressive stresses. The part which rests underneath the slab and defends against the shear stress is known as rib.

The purpose of implementing t-beams is to produce more cost-effective design as it minimizes the quantity of plain concrete that is employed to develop the member.

For spans greater than 4 m it provides superior and considerably more resistance with regards to rectangular beam. Simply T beam will curtail rebar requirement.
It is possible to save 9 to 20 percent reinforcement relating to rectangular beam.
Necessary depth of beam will also decrease, because flange or web will play a significant role against sagging moment.

Limit state design (LSD) alias load and resistance factor design (LRFD) stands for a design method that is very effective in structural engineering. A limit state belongs to a condition of a structure beyond which it not anymore satisfies the related design criteria.

Given below, some useful features of this method:-

Limit State Method identifies the basic instability of loads and allocates a much greater factor of safety to live loads (it may be raised by 1.5-1.6), while it identifies that dead loads are much neaer to what has been computed (dead loads are multiplied by 1.2).
Limit State Method also identifies the ambiguity of various failure modes. As for instance, flexural strength of a concrete beam is comparatively anticipated; so, 90% of the theoretical value is taken into consideration. Conversely, shear in concrete is much less anticipated; so, only 70% of the value is taken into consideration.
Limit state method applies the ultimate strength of the member away from the initial yielding and permits plastic deformation to a specific extent.
In this construction video tutorial, you will learn how to create the design of a T-beam by applying state method.
The design is accomplished on the basis of the following data:

To learn the detail calculation process, watch the following video tutorial