独塔双索面斜拉桥主塔下横梁施工及支架力学性能研究  

Research on Construction of Lower Crossbeam of Main Tower of Single Tower and Double Cable Plane Cable-stayed Bridge and Mechanical Performance of Support

作　　者：荐家鑫 沙仁明 林志民 王慧明 魏星 JIAN Jia-xin;SHA Ren-ming;LIN Zhi-min;WANG Hui-ming;WEI Xing(China railway construction bridge engineering bureau group 1st engineering Co.,Ltd.,Dalian,Liaoning 116083,China)

机构地区：[1]中铁建大桥工程局集团第一工程有限公司,辽宁大连116083

出　　处：《黑龙江交通科技》2023年第3期87-89,共3页Communications Science and Technology Heilongjiang

摘　　要：落地支架法在斜拉桥主塔横梁施工中发挥着重要作用,为了研究落地支架在独塔双索面斜拉桥主塔下横梁施工的力学性能,以引江济淮工程周瑜大道桥为背景,对斜拉桥主塔下横梁施工方案进行了研究,并对下横梁支架中贝雷梁、钢管柱、分配梁、横梁的强度、刚度及钢管柱稳定性进行了分析。结果表明,支架各构件的强度、刚度及稳定性均满足构造要求。研究结果为后续斜拉桥主塔横梁施工提供借鉴。The floor stand method plays an important role in the construction of the beams of the main tower of the cable-stayed bridge.In order to study the mechanical performance of the construction of the lower beam of the main tower of a single-tower double-cable-plane cable-stayed bridge using the floor-to-ceiling bracket method, with the Zhouyu Avenue Bridge of the River Diversion Project from the Yangtze River as the background.The main beam stayed Bridge construction scheme is studied, and the lower cross beam holder Bailey, steel columns, beams distribution, beam strength, stiffness and stability of the steel column was analyzed.The results show that, the strength of each bracket member, stiffness and stability are configured to meet the requirements.The research results provide a reference for the subsequent construction of the main tower beam of the cable-stayed bridge.

关 键 词：落地支架法 下横梁施工 强度验算 刚度验算 稳定性分析 

分 类 号：U445[建筑科学—桥梁与隧道工程]