山区公路桥梁抗震设计与抗震加固措施研究

Study on Seismic Design and Strengthening Measures of Highway Bridges in Mountainous Areas

桥梁作为山区公路的枢纽构造物,如果因抗震设计方法不正确、抗震加固措施不合理而遭受破坏,可能引起巨大的经济损失和人员伤亡.鉴于此,论文分析了目前山区公路桥梁常见的震害及原因,探讨了山区公路桥梁常用设计方法的优缺点、设计原则、设计要求等,并从增强桥梁抗震能力和减弱桥梁地震反应2个途径对桥梁的抗震加固措施展开了深入的阐述,以期为类似山区公路桥梁的抗震设计项目提供理论指导.

As the key structure of mountain highway,if the bridge is damaged due to the incorrect seismic design method and unreasonable seismic reinforcement measures,it may cause huge economic losses and casualties.In view of this,the paper first analyzes the common earthquake damages and causes of highway bridges in mountainous areas,discusses the advantages and disadvantages,design principles,design requirements,etc.of the common design methods of highway bridges in mountainous areas,and expounds the seismic reinforcement measures of bridges from two ways of strengthening the seismic capacity of bridges and reducing the seismic response of bridges,in order to provide theoretical guidance for seismic design projects of highway bridges in similar mountainous areas.