超高墩连续刚构0#块托架设计与施工研究——以芦沟河特大桥左幅7#墩为例  

Research on the Design and Construction of 0#Bracket of Continuous Rigid Frame of Ultra-high Pier--Taking the 7#pier on the left side of the Lugouhe grand bridge as the example

作　　者：张文东 Zhang Wendong(Liaoning Road and Bridge Construction Group Co.,Ltd.,Shenyang 110079,China)

机构地区：[1]辽宁省路桥建设集团有限公司,沈阳市110079

出　　处：《北方交通》2024年第9期17-21,共5页Northern Communications

摘　　要：合理的托架设计是连续刚构施工的重要保障。以芦沟河特大桥(96+5×180+96)m连续刚构施工为研究背景,以左幅7#墩上的0#块托架设计施工为研究对象,运用Midas Civil有限元软件对0#块托架设计进行分析检算,结果显示:薄壁空心墩0#块支架的强度、刚度及稳定性均满足要求。The reasonable bracket design is an important guarantee for the construction of continuous rigid frame.Taking the construction of(96+5×180+96)m continuous rigid frame of the Lugouhe grand bridge as the research background,taking the design and construction of the 0#bracket on the left 7#pier as the research object,the analysis and checking calculation are carried out on the 0#bracket by utilizing the Midas finite element software.The results show that:the strength,stiffness and stability of the 0#bracket of the thin-walled hollow pier meet the requirements.

关 键 词：超高墩连续刚构 有限元仿真 牛腿支撑托架 稳定性 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]