软土高震区“V”形墩支撑钢桥的基础设计  

Foundation Design of V-Shaped Pier Supporting Steel Bridge in Soft Soil and Strong Earthquake Zone

作　　者：赵兴中[1] 华龙海[1] 项敬辉[1] ZHAO Xing-zhong;HUA Long-hai;XIANG Jing-hui(Tianjin Municipal Engineering Design&Research Institute,Tianjin 300457,China)

机构地区：[1]天津市市政工程设计研究院

出　　处：《工程建设与设计》2019年第22期100-101,共2页Construction & Design for Engineering

摘　　要：在结构自重、预应力、温度荷载和活载等作用下,"V"形墩主墩墩底会产生较大水平力和弯矩,同时,由于"V"形墩刚构刚度较大,在地震作用下会产生较大的地震水平力。以某"V"形墩支撑钢桥为工程背景,分析其在软土高震区基础设计的关键点,提出具体的解决措施,并提出相关建议。Under the action of the dead weight, prestress, temperature load and live load of the structure, the bottom of the main pier of the V-shaped pier will generate large horizontal force and bending moment. At the same time, due to the large stiffness of the V-shaped pier rigid structure, the seismic horizontal force will be generated under the action of the earthquake. Taking the V-shaped pier supporting steel bridge as the engineering background, this paper analyzes the key points of foundation design in the soft soil and strong earthquake area, and puts forward the concrete solution measures and puts forward the relevant suggestions.

关 键 词：V形墩支撑钢桥 软土高震区 钢护筒 

分 类 号：U442.54[建筑科学—桥梁与隧道工程] F532[交通运输工程—道路与铁道工程]