防灾减灾工程学报2016，Vol.36Issue(4)：617-623,639,8.DOI:10.13409/j.cnki.jdpme.2016.04.016
中外桥梁抗震设计规范有关防落梁的比较与研究
Comparison and Research of Unseating Prevention Measures in Seismic Codes of China and Foreign Countries
摘要
Abstract
This paper illustrates the unseating prevention measures in seismic codes at home and abroad.Then,three aspects including minimum bearing width of beam end,design load of bridge spacing devices and construction measures are analyzed.At last,this paper summarizes advantages and disadvantages of unseating prevention measures in different countries' seismic codes,and puts forward useful suggestions for unseating prevention measures in seismic code of our country.The analysis results show that (1) the unseating prevention systems in the United States and Japan are relatively mature,now mostly adopt the static or pseudo static method but ignore the influence of the structure vibration characteristics;(2) The unseating prevention measures in China's codes are mostly construction measures,need to be further improved to meet the requirements of the practical engineering.关键词
桥梁工程/抗震规范/防落梁措施/构造措施/比较研究Key words
bridge engineering/seismic codes/unseating prevention measure/construction measure/comparative analysis分类
交通工程引用本文复制引用
左烨,孙广俊,李鸿晶..中外桥梁抗震设计规范有关防落梁的比较与研究[J].防灾减灾工程学报,2016,36(4):617-623,639,8.基金项目
国家自然科学基金项目(51308293)、江苏省自然科学基金项目(BK20130937)、江苏省高校自然科学研究面上项目(13KJB560003)、江苏省研究生创新工程项目(KYLX_0757)资助 （51308293）
