Before revision: Prestressing means the intentional creation of permanent stresses in a structure for the purpose of improving its performance under various service conditions.1,600 x 1,200 px|Naturally precompressed exterior wall of Colosseum, Rome There are the following basic types of prestressing: Precompression (mostly, with the own weight of a structure) Pretensioning with high-strength embedded tendonsPost-tensioning with high-strength bonded or unbonded tendons800 x 600 px | Cable-stayed prestressed concrete bridge over Yangtze riverToday, the concept of prestressed structure is widely employed in design of buildings, underground structures, TV towers, power stations, floating storage and offshore facilities, nuclear reactor vessels, and numerous kinds of bridge systems .
After revision: Prestressing means the intentional creation of permanent stresses in a structure for the purpose of improving its performance under various service conditions.1,600 x 1,200 px|Naturally precompressed exterior wall of Colosseum, Rome There are the following basic types of prestressing: Precompression (mostly, with the own weight of a structure) Prestressed concte book | title= Prestressed Concrete|author=Nawy, Edward G.|year=1989|publisher=Prentice Hall|isbn=0-13-698375-8</ref> .