Civil Engineering/Beam Rebar

Advertisement


Question
Sir,

3,4,5th floor.
In a beam, i have seen as top layer 2T32, and bottom 2T25 with 4 leg stirrups.

Why they are using top layer rebar bigger than bottom layer?

In this case do we need to go with 4 leg stirrups?

Thanks for advanced.

Vasan

Answer
Dear Vasan

I think The top bars are used for support moment. You should check wether the beam is continuous or not. If not and for a simply supported beam it is not rational to use bigger size on the top . You don't need to use a 4 legs stirrup.

Regards
BEH

Civil Engineering

All Answers


Answers by Expert:


Ask Experts

Volunteer


Babak Esmailzadeh Hakimi

Expertise

I can answer questions in Structural Engineering, Earthquake Engineering, Project Management and Project Control topics!

Experience

I am experienced in the area of earthquake engineering in electrical power industry, i.e. Lifeline Earthquake Engineering. My focus has been on structural seismic design of power installations. Recently I have got involved in project management in the category of constructional engineering.

Organizations
Sinam Consulting Engineers Co.

Education/Credentials
Bs degree in Civil Engineering from Ferdowsi University ,1988, Mashhad Iran, Ms degree in Earthquake Engineering, Sharif University of Technology, 1993, Tehran, Iran

©2016 About.com. All rights reserved.