1.0.1 This code is formulated with a view to realize state-of-the-art technology and safety & usability, as well as guarantee quality and economy & rationality in the design and construction of unbonded prestressed concrete structure.
1.0.2 This code is applicable to design, construction and acceptance of unbonded prestressed concrete structure adopted in industrial, civil and general construction. Adopted unbonded tendon means that embedded in concrete components or external tendon.
1.0.3 As for unbonded prestressed concrete structure, rational design and construction scheme shall be determined, construction design shall be formulated, and technical exchanges shall be well carried out according to construction function requirements, material supply and construction conditions. Besides, the engineering construction shall be carried out by professional prestress construction team, so shall strict quality inspection and acceptance system.
1.0.4 The design life of unbonded prestressed concrete structure shall be determined according to the current national standard "Unified standard reliability design of building structures" GB 50068. Its seismic design shall be enforced according to the current professional standard "Specification for seismic design of prestressed concrete structures" JGJ 140. Not only the requirements stipulated in this code, but also those in the current relevant ones of the nation shall be complied with.
