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Chapter: Civil - Prestressed Concrete Structures - Theory and Behaviour

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Advantages of Prestressed Concrete

In case of fully prestressed member, which are free from tensile stresses under working loads.

Advantages of Prestressed Concrete

 

        In case of fully prestressed member, which are free from tensile stresses under working loads.

 

        The cross section is more effectively utilized when compared with a reinforced concrete section which is cracked under working loads.

 

   Within   certain limits, a permanent will be counteracted by increasing the eccentricity of the prestressing force in a prestressed structural elements, thus effecting saving in the use of materials.

 

   Prestressed    concrete members possess improved resistance to shearing forces, due to the effect of compressive prestress, which reduces the principal tensile stress.

 

   The  use  of high strength concrete and steel in prestressed members results in lighter and slender members than is possible with reinforced concrete.

 

   It is free  from cracks, contributes to the improved durability of the structure under aggressive environmental conditions.

 

    The economy  of prestressed concrete is well established for long span structures.

 

   A prestressed   concrete flexural member is stiffer under working loads than a reinforced concrete member of the same depth.

 


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