摘要
以三峡工程对外交通公路黄柏河特大桥为研究背景,通过建立空间结构有限元模型,计算和分析了上承式大跨度钢管混凝土拱桥的动力特征,并分别运用反应谱法和时程反应法分析该桥的空间地震响应,采用了十余条地震记录进行计算,讨论其主要结构形式、不同的地震波、各种场地以及各参数对地震反应的影响和规律,为大跨度上承式钢管混凝土拱桥的抗震设计和研究提供了理论依据.
Taking the Huangbohe bridge located on the external transportation system of the Three Gorge Project as study background, the dynamic characteristics for large span arch bridge of concrete filled steel tube are calculated and analyzed by using 3D finite element model. In addition, 3D seismic response of this bridge is analyzed by means of more than 10 seismic records selected with response spectrum method and time history method. The effects of the main structural form, different seismic waves and several soil sites on seismic response have been discussed. This study provides theoretic basis for seismic design and study of large span arch bridge of concrete filled steel tube.
出处
《北京交通大学学报》
EI
CAS
CSCD
北大核心
2005年第1期4-8,共5页
JOURNAL OF BEIJING JIAOTONG UNIVERSITY
基金
国家重点工程三峡工程对外交通公路重点项目
铁一院科研基金项目(T009411)
关键词
钢管混凝土
拱桥
地震响应
动力特性
反应谱分析
时程分析
concrete filled steel tube
arch bridge
seismic response
dynamic characteristic
response spectrum analysis
time history analysis
