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Prestressed concrete is a highly versatile construction material as a result of it being an almost ideal combination of its two main constituents: high-strength steel, pre-stretched to allow its full strength to be easily realised; and modern concrete, pre-compressed to minimise cracking under tensile forces.
In structural engineering, a prestressed structure is a load-bearing structure whose overall integrity, stability and security depend, primarily, on prestressing: the intentional creation of permanent stresses in the structure for the purpose of improving its performance under various service conditions. [1]
Prestressed concrete is a form of reinforced concrete that builds in compressive stresses during construction to oppose tensile stresses experienced in use. This can greatly reduce the weight of beams or slabs, by better distributing the stresses in the structure to make optimal use of the reinforcement.
The Prestressed concrete is a concrete system into which internal stresses are deliberately induced without any form of external loads to improve its performance. The internal stresses induced in the concrete structure is used to counteract the stresses coming from the external load application.
Prestressed Concrete. Definition: structural concrete in which internal stresses have been introduced to reduce potential tensile stresses in concrete resulting from loads.- ACI Concrete Terminology.
prestressed concrete, Concrete reinforced by either pretensioning or posttensioning, allowing it to carry a greater load or span a greater distance than ordinary reinforced concrete. In pretensioning, lengths of steel wire or cables are laid in the empty mold and stretched.
Nov 12, 2015 · Abstract. Prestressed concrete is made by introducing compressive stresses (prestress) into areas where an external load will produce tensile stresses. Before the established compressive stresses (prestress) offset, the concrete is not subjected to any tensile stresses. Keywords. Prestressed Concrete. Prestress Losses. Prestress Transfer.