预应力混凝土转换层结构设计

本文总结了预应力混凝土梁式转换层抗裂能力强,挠度小,耐久性好;预应力桁架式转换层可避免内力集中于一根梁上造成强梁弱柱,从而提高结构的抗震性能;预应力厚板式转换层抗裂、抗冲击能力强等优点。介绍了预应力配置原则并列举了相应的工程实例,供设计者参考。本文对预应力混凝土转换层的设计具有指导意义。

The design of the prestressed concrete transfer floor structures

The advantages are summarized,of the high crack-resistance,small deflection and good durability of transfer floor structures of prestressed concrete beam,and the high earthquake resistance of that of the prestressed truss which can avoid strength beam and weake column caused by that the internal force only is distributed on one beam,and the high ability of the crack-resistance and high punching shear strength of that of the prestressed thick plate.The arrangements of the prestressing reinforcement are introduced.The design examples of the prestressed concrete transfer floor structures are given,which gives a reference to the designers.It is significant for the design of prestressed concrete transfer floor structures.