空腹式连续无铰拱桥设计关键问题探讨  

Discussion on the Key Problems of Design of Open-web Continuous Hingless Arch Bridge

作　　者：郭斌强 叶建龙 沈小雷 GUO Binqiang;YE Jianlong;SHEN Xiaolei(Zhejiang Provincial Institute of Communications Planning,Design & Research,Hangzhou 310006)

机构地区：[1]浙江省交通规划设计研究院有限公司

出　　处：《公路交通技术》2019年第5期67-72,共6页Technology of Highway and Transport

摘　　要：结合工程实例,针对独山大桥连拱结构探讨了设计时需要注意的几个关键问题,包括合理拱轴线的计算方法、制动墩的设置、结构精细化计算分析等,并分析了有限元计算时采用不同边界条件的固结模拟方法对计算结果的影响,可供同类桥梁工程设计人员参考。Based on the engineering example,several key problems in the design of continuous arch structure of Dushan bridge are discussed.,including the calculation method of the rational arch axis,how to set up the brake pier,and the fine calculation analysis.The influence of different boundary condition simulation methods on the calculation results is analyzed,which can be used as reference for the designers of the same kind of bridges.

关 键 词：连续拱桥 合理拱轴线 拱轴系数 制动墩 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]