摘要
随着现代公路桥梁的大量建设,因车辆超载导致的公路桥梁倾覆现象时有发生,对公路独柱桥梁的抗倾覆设计与其加固技术成为现今社会的研究热点。分析了在独柱桥梁的设计与施工的过程中其不同的类型和相应的破坏特征,从理论上阐述了公路桥梁在抗倾覆设计过程中的验算原理。同时,结合实际的例子,从桥梁的抗倾覆设计出发,分析了倾覆轴线、支承间距和支承方式对于桥梁设计过程中的抗倾覆性能影响。结果表明:适当的增加桥梁的支承间距有益于增强桥梁的抗倾覆稳定性能;梁墩固结的支承方式能够很好的提高公路桥梁的抗倾覆能力。
With the extensive construction of modern highway bridges,the overturning phenomenon of highway bridges caused by vehicle overload has occurred from time to time.The anti-overturning design and reinforcement technology of highway single-column bridges have become the research hotspots of today's society.This paper analyzes the different types and corresponding damage characteristics of the single-column bridge design and construction process,and theoretically expounds the check calculation principle of highway bridge in the anti-overturn design process.At the same time,this paper combines the actual examples,from the anti-overturning design of the bridge,analyzes the influence of the overturning axis,the supporting spacing and the supporting method on the anti-overturning performance in the bridge design process.The results show that the proper increase of the bearing spacing of the bridge is beneficial to enhance the anti-overturning stability of the bridge;the support method of the beam pier consolidation can improve the anti-overturning ability of the highway bridge.
作者
肖光术
冯玉龙
岳彬
刘璐
XIAO Guangshu;FENG Yulong;YUE Bin;LIU Lu(China Highway Engineering Consulting Group Co.,Ltd.Beijing 100089,China;School of Communications,Wuhan University of Technology,Wuhan,Hubei 430000,China)
出处
《公路工程》
北大核心
2020年第3期111-116,共6页
Highway Engineering
基金
湖北省自然科学基金重点项目(杰青类2014CFA026)。
关键词
公路独柱桥梁
抗倾覆
支承间距
梁墩固结
highway single column bridge
anti-overturn
support spacing
beam pier consolidation
