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Bracing System - Structural arrangement that ensures stability in Longitudinal Direction

What happens to a building when it is subjected to wind loads? Any building or structures, in general, must ensure stability in two directions (Lateral & Longitudinal) to safely transfer loads from the location of application to the ground. Considering a typical steel warehouse building something similar to the following image, when it is subjected to wind load along the lateral direction, stability is ensured by the portal frame action. Lateral Direction - Along width of the building Longitudinal Direction - Along Length of the building The column and the rafter connected using a rigid joint act as a portal to sustain the lateral loads that act on the building. So, the building is fine in the lateral direction. What if the wind blows in the longitudinal direction?  How longitudinal force gets transferred through the system? In the longitudinal direction, when the force acts on the gable ends of the building, the first component to interact with the load is the cladding materials (


As I stated clearly the purpose of this blog, the posts I make here describes the advanced and complicated structural engineering concepts in a simple way. There are few things to consider, the purpose to simplify these things is to help young engineers and students understand the structural concepts. 

But, when it comes to the career point of view in long run, the "BOOKS" are the only companions that could help the engineers when they got stuck at some point. 

My suggestion is that every structural engineer must develop the regular habit of reading and try to make up his/her own library of books.

My Library

Home Library

Let me start with a basic understanding of structures, These are the two books I highly suggest as they are simple and provide proper insight into the behavior of structures. Without understanding the basic behavior, reading books on design or analysis will not make any difference. 

Upon gaining certain amount of understanding regarding structural behavior, then we must concentrate on analysis part. As a design engineer, most of my time is spent in analyzing a structure and arriving the necessary internal forces (Thanks to the advancement in computations, we use either a software program or in house developed excel sheets to do our job). But, in order to properly assess whether the results that we obtain from them is right or wrong, one requires a strong engineering judgement. These are my recommendations for learning Structural Analysis.   

The reason to recommend this book authored by Hibbeler is that it contains most practical examples of simple analysis problems which would make readers engaging. 

5. Advanced Structural Analysis by Devdas Menon

Yes, I could feel your doubt. I am a big fan of Dr. Devdas Menon's writings and lectures.