# Full Form of TOS in Civil Engineering | Theory of structure [TOS]

Full Form of TOS in Civil Engineering In the civil engineering branch, Full Form of TOS in Civil Engineering has many full forms which are listed...

## Full Form of TOS in Civil Engineering

In the civil engineering branch, Full Form of TOS in Civil Engineering has many full forms which are listed below

• Top Of Steel
• Top Of Slab
• Top Of Structure
• Theory Of Structure
First, three Full Form of TOS in Civil Engineering are simple and easy to understand the meaning of Full Form of TOS in Civil Engineering but the last one required detailed explanation so read the below article to learn.

## Theory of structure (TOS)

Every design of a structure consists of two parts:

1. The first part deals with the determination of forces at any point or member of the given structure
2. The second part deals with the selection and design of suitable sections to resist these forces. So that the stresses and defor­mations developed in the structure due to these forces are within permis­sible limits.

The first part can be known as "Structural Analysis" and the second part as "Proportioning" or "Dimensioning" of members.

Before we can start any building structure analysis, we shall require lots of details regarding structure design, loading, dimension, and sectional properties.

To proportion a structure, we must first know how it will behave under loading. Therefore, the process of analysis and design forms an integral part of any design.

There is a definite advantage in combining design and analysis and were it not for the fact that such a textbook would be enormous, it would have been ideal to include both in one volume.

In practice, the properties of mem­bers are so chosen as to obtain a specified structure, and then the analysis is carried out. Often the designer may have to readjust his initial dimen­sions in order to get the desired response from the structure.

Therefore, the intended purpose of any analysis is to know how the structure responds to a given loading and thereby evaluate the stresses and defor­mations.

The ultimate aim in learning the methods of analysis is, to help design efficient, elegant, and economical structures. Analysis helps the designer to chose the right type of sections consistent with the economy and safety of the structure.

The purpose of structural analysis is to determine the reactions, internal forces, such as axial, shear, bending, and torsional, and deformations at any point of a given structure caused by the applied loads and forces.

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