摘要
本文基于地震现场考察资料介绍了汶川地震中梁式桥的一些典型震害实例,分析震害原因及其发生规律,并探讨强烈地震作用下防震害的新方法。新方法是以适当的构造方式改变地震能量的传输,减少桥面系与墩台的相对位移,保证下部结构的安全,从而达到防止震害的目的。
This paper reports some typical damage samples of the girder bridge in the Wenehuan Earthquake, on the hasis of an inspection visit to the earthquake site. The causes and patterns of the earthquake damage are analyzed. Meanwhile, a new method for seismic protection from the strong seismic excitation is proposed. The new method uses proper constructional measures to change the transmission of earthquake energy,to reduce the relative displacement between the superstructure and the pier, and to ensure the safety of the substructure, so as to prevent the earthquake damage
出处
《地震工程与工程振动》
CSCD
北大核心
2008年第5期20-26,共7页
Earthquake Engineering and Engineering Dynamics
基金
国家科技支撑计划课题项目(2006BAC13B02)
中国地震局工程力学研究所中央级公益性研究所基本科研业务费专项(2007B01)
关键词
汶川地震
梁式桥
致灾因素
防震害的新方法
Wenchuan Earthquake
girder bridges
causes of earthquake damage
new method for seismic protection
