某特大桥主墩基础撞击承载力研究  

Study of Crash Capability of Main Pier Foundation for a Super Large Bridge

作　　者：高志升 陈洪彬[2] 常晶[2] 

机构地区：[1]北京市市政专业设计院股份公司,北京市100037 [2]中交公路规划设计院有限公司,北京市100088

出　　处：《公路》2014年第1期52-55,共4页Highway

摘　　要：采用有限元软件ABAQUS建立了某特大桥上下部结构的全桥三维仿真模型,分析了主墩基础在外力撞击作用下的变形形式。通过分析,得出了在正向撞击和斜向撞击工况下主墩基础的破坏形态及撞击承载力。采用在基桩周围抛片石的加固方法,基础的承受撞击能力有所提高。In this paper, a 3D Model for a super large bridge superstructure and substructure is built with FEM software ABAQUS/CAE, and the deformation types for its main pier foundation is analyzed under external force crash. The main pier foundation damage patterns and crash capability under vertical and oblique crash conditions are obtained after analysis. Using a reinforcement method of throwing stones around piers can improve the crash capability of the main foundation.

关 键 词：特大桥 基础 撞击 有限元 研究 

分 类 号：U441.2[建筑科学—桥梁与隧道工程]