现时期公路桥梁设计及其抗震优化研究  

Research on Design and Seismic Optimization of Highway Bridge at Present

作　　者：魏晓强 吴登科 WEI Xiao-qiang;WU Deng-ke(CCCC First Highway Survey,Design and Research Institute Co.Ltd.,Xi'an 710075,China;China United Northwest Institute for Engineering Design and Research Co.Ltd.,Xi'an 710077,China)

机构地区：[1]中交第一公路勘察设计研究院有限公司,西安710075 [2]中联西北工程设计研究院有限公司,西安710077

出　　处：《工程建设与设计》2022年第19期139-141,共3页Construction & Design for Engineering

摘　　要：阐述了桥梁抗震设计的现状和特点,分析桥梁抗震设计的相关理论知识,探讨了桥梁抗震设计应注意的要点,得出以下结论:桥梁结构上设置隔震设施可以对地震波所带来能量起到一定程度的缓冲,对桥梁起到保护作用;选择施工场地时,尽可能选择较为坚硬的地基,能够为桥梁提供平稳的平台;充分考虑公路桥梁材料的可重复使用性以及经济实用性,保证公路桥梁在受到地震等自然灾害的破坏后,能够得以再次使用,减少经济损耗。This paper expounds the current situation and characteristics of bridge seismic design,analyzes the relevant theoretical knowledge of bridge seismic design,discusses key points that should be paid attention to in the seismic design of bridge,and draws the following conclusions:setting seismic isolation facilities on the bridge structure can buffer the energy brought by seismic waves to a certain extent and protect the bridge;When selecting the construction site,select a relatively hard foundation as far as possible to provide a stable platform for the bridge;Fully consider the reusability and economic practicability of highway bridge materials to ensure that highway bridges can be reused after being damaged by natural disasters such as earthquakes and reduce economic losses.

关 键 词：桥梁结构 抗震设计 防震措施 震害 

分 类 号：TU421.3[建筑科学—岩土工程] U442.5[建筑科学—土工工程]