山区高大跨连拱支架设计与研究  

Study and Design of Large span Multi-arch Stents in Mountain Area

作　　者：赵阳[1] 王建金[1] 

机构地区：[1]贵州省交通规划勘察设计研究院股份有限公司,贵阳550081

出　　处：《交通科技》2015年第1期22-25,共4页Transportation Science & Technology

摘　　要：依托一座6跨连续的上承式拱桥,阐述了主拱圈的支架设计过程,并进行了相关的分析研究。针对工程特点,支架体系采用钢拱架下接钢管柱的结构形式。为保证主拱圈浇注的质量以及施工过程的安全,文中采用大型通用有限元软件Midas Civil对支架进行了有限元仿真模拟,分析了在相应荷载下支架的应力、变形及稳定性,以利结构的安全设计。Based on a six-span continuous deck arch bridge,detailed description of stents design process of main arch is presented and the related researches are performed in this paper.According to engineering characteristic,steel arch lower connecting with the structure of steel pipe column is adopted as the scaffolding system.In order to ensure the pouring quality of the main arch and the safety of the construction process,large general finite element software Midas Civil is used to perform FEM simulation analysis of stents and analyze the stents stress,deformation and stability under the corresponding load to achieve the safety design of the structure.

关 键 词：上承式拱桥 支架 有限元 安全设计 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]