日本桥规中的抗震性能

桥梁抗震设计首先需要设定抗震设防标准。抗震性能就是抗震设计中由设防标准决定的在地震时和地震后需要达到的结构性能和目标。文章系统介绍日本桥规中有关桥梁抗震性能的定义、抗震性能标准以及在不同抗震性能标准时对桥梁桥墩、桩基、上部结构等构件的极限状态设定。介绍检验抗震性能指标的工程评估指标和抗震设计方法。

Earthquake Resistant Behavior in Japanese Bridge Specifications

Earthquake protection standard should be set up in bridge aseismic design. Earthquake resistant behavior means the structural characteristics and targets should be reached during and after the earthquake depending on earthquake protection standard in aseismic design. Introduced in this paper are the definition and standard of earthquake resistant behavior, the setting for limiting conditions of bridge pier, pile foundation, superstructure etc under different earthquake resistant behaviors, as well as project appraisal indexes for checking of earthquake resistant behavior standard and aseismic design method.