370 m跨径X形提篮拱结构有限元模拟研究
张裕超;马志远
【期刊名称】《山东建筑大学学报》 【年(卷),期】2013(028)002
【摘要】渝黔铁路是国家“八纵八横铁路网”中“包柳铁路大通道”的重要组成部分.以渝黔铁路线中X形提篮拱桥为依托工程,为确保施工工程质量与安全,采用Midas/Civil2010有限元软件对该拱桥成桥后主拱圈应力、运营阶段稳定性与位移验算等进行了计算和分析,结果表明该提篮拱桥拱脚处最大压应力为14 MPa满足混凝土规范要求设计值,结构运营阶段稳定系数为32.2,满足现行规范限值,结构在横纵向自振周期分别为1.473 s与1.389 s均满足规范限值.%Yu-Qian Railroad is an important part of Baotou-Liuzhou Railway in the railway main lines.In order to ensure the quality and safety of the x-type arch bridge which is going to be built in Yu-Qian Railroad.The calculation and analysis are made of the stress of the main arch ring,the stability of the operation phase and the displacement by Midas/Civil2010 FEM software.The results indicate that the maximum stress of arch springing is 14 Mpa which can meet code requirements.K is 32.2 which can meet the present code in the operational stage.The natural vibration period of transverse and longitudinal directions are 1.473 s and 1.389 s which can meet code requirements. 【总页数】5页(129-133)
【关键词】X形提篮拱桥;运营阶段;位移验算;仿真分析
370 m跨径X形提篮拱结构有限元模拟研究
