一、无粘结预应力混凝土结构抗震性能的特点 在地震水平荷载作用下,无粘结预应力混凝土结构的抗震性能如何,无粘结预应力能否在地震区应用,是设计人员关心的问题。随着部分预应力混凝土的广泛应用,对其抗震性能的逐步深入研究,以及顶应力结构在历次大地震中的震害表现,均为预应力混凝土结构在地震区的应用积累了经验。目 I. Characteristics of the seismic performance of unbonded prestressed concrete structures The seismic performance of unbonded prestressed concrete structures subjected to seismic horizontal loads, and whether or not the prebonded prestressed stresses can be used in the seismic zone is a concern for designers. . With the extensive application of partially prestressed concrete, the in-depth study of its seismic performance, and the seismic damage performance of the top stress structure in previous major earthquakes, have accumulated experience in the application of prestressed concrete structures in seismic regions. Head