V撑连续刚构组合拱桥地震响应分析

Seismic response analysis of a V support continuous rigid frame-arch combination bridge

进行了某V撑连续刚构组合拱桥的模态分析和地震反应分析,分析结果表明,各阶振型频率呈现出密集分布的形态,拱的振动出现较早,拱脚截面为地震反应的危险截面,当发生8度地震时,该桥的安全性可以得到保障。

Analysis and seismic response analysis of a V support continuous rigid frame-arch combination bridge are carried out. The results of the analysis indicate as followings, the mode frequencies appears to be densely distribution modality and vibration of the arch appears early. The springing section is critical section, the safety of the bridge can be assured during earthquake of intensity 8.