浅析预应力混凝土框架的抗震问题

In the paper, it introduces seismic requirement of prestressed concrete framework, and analyzes influencing factors of prestressed structure ductility. Based on above factors, it analyzes and discusses realization way to beam hinge-energy dissipation mechanism based on strong column weak beam from adjustment of column-tip moment、decreased effective hight of tendon at side-bearings、effective flange width etc. And, it can solve seismic design problem of prestressed concrete framework according to design method of seismic ability proposed by R.Park and T.Paulay. Thus, it has changes people’s unilateral idea of prestressed concrete structure not suitable to be used seismic area.