日本桥梁抗震中的防落梁设计

Collapse-proof systems design of Japanese bridge aseismic

针对桥梁在地震中容易落梁的现象,以及国内现行规范对于防落梁设计规定得比较简单和笼统的现状,借鉴性地介绍了日本桥梁抗震中的防落梁系统,对系统的设计思想、构成部分和选择流程做了重点说明。

This paper analyzes the phenomenon of bridge collapse in earthquake,and introduces the bridge collapse preventing equipments in Japanese bridge aseismic in view of the domestic present standard. To the system＇s design concept, the constituent part and the choice flow has been given key explanation.