What are the Types of members in Prestressed Structures?
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Komal Bhandakkar
PRE-STRESSED STRUCTURE :
Definition :
The prestressed structure is a structure whose overall integrity property, the stability of the structure and its security mainly depends on prestressing.
Important Note :
The international creation of damped permanent stresses within the structure is mainly for the improvement of its performance under various service conditions.
Basic Type of Prestressing are as given below :
Interesting Point :
CB Sowmya
There are three types of members in prestressed concrete
TYPE 1 – Tension is not allowed; Cracking is not allowed.
TYPE 2 – Tension is allowed (within permissible stresses) ; Cracking is not allowed.
TYPE 3 – Tension is allowed; Cracking is allowed within permissible stresses.
Type 3 members are the most economical members because they allow cracking and thus use the elastic property of the materials.
nikeetasharma
Pre-stressed concrete is a form of concrete used in construction. It is substantially prestressed during production, in a manner that strengthens it against tensile forces which will exist when in service. According to the construction methods there are two kinds of prestressed concrete :-
– Pre-tensioned concrete
– Bonded Post-tensioned concrete
– Unbonded Post-tensioned concrete
The three types of members in prestressed concrete are as follows:-
1. Neither allowing tension nor crack.
2. Allowing tension within permissible stress but cracking is not allowed.
3. Tension and crack both are allowed but within permissible stress.