抗动载预应力混凝土梁延性设计考虑

Discussion on bent ductility design of prestressed concrete beam under dynamic loading

预应力混凝土梁设计截面时,除了考虑破坏强度以外,还应满足一定的延性要求。延性好的结构能以残余的塑性变形来吸收震动和爆炸荷载的巨大能量,这对人防工程建筑物来说是极为重要的。根据预应力混凝土受弯构件力学特性,探讨了影响预应力混凝土受弯构件曲率延性的一些主要因素,给出了在动载下设计预应力混凝土受弯构件的一些建议。

Based on the characteristic of prestressed concrete beam, influence of some factors on the ductility of the prestressed concrete beam is discussed, and the suggestions for the ductility destgn of the prestressed concrete beam under dynamic loading are given.