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Chapter: Civil - Prestressed Concrete Structures - Theory and Behaviour

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Importance of control of deflection of PSC beams

The structural concrete members shall designed to have adequate stiffness to limit deflections, which may adversely affect the strength or serviceability of the structure at working loads.

Importance of control of deflection:

 

The structural concrete members shall designed to have adequate stiffness to limit deflections, which may adversely affect the strength or serviceability of the structure at working loads.

 

Suitable control on deflection is very essential for the following reasons:

 

        Excessive, sagging of principal structural members is not only unsightly, but at times, also renders the floor unsuitable for the intended use.

 

        Large deflections under dynamic effects and under the influence of variable loads may cause discomfort to the users.

 

        Excessive deflections are likely to cause damage to finishes, partitions and associated structures.

 

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