摘要
介绍日本现行铁路高架桥设计采用的构件延性率计算方法,指出在结构延性抗震设计中,构件以及结构的延性能力计算结果是影响结构抗震性能评价的重要参数,铁路高架桥梁多采用单层或多层刚架,合理评价它的变形能力是桥梁抗震设计所面临的重要课题。
The calculation methods of ductility rate of frame member in the design of elevated railway bridges in Japan are introduced. The calculation results of ductility of frame member and structure are important parameters which influence the evaluation of quake- proof structure in the design of ductile and quake proof structures. Many elevated railway bridges employ monohyer or multi - layer rigid frames, and the reasonable evaluation of the frame is an important subject in quakeproof design of railway bridges.
出处
《都市快轨交通》
2005年第6期50-54,共5页
Urban Rapid Rail Transit
关键词
抗震设计
延性
延性率
响应塑性率
初始屈服状态
极限状态
structure
quakeproof design
ductility
ductility rate
response ductility factor
first yielding state
ultimate limit state
