提篮系杆拱桥吊索张拉顺序优化分析  

The optimization analysis on sling tensioning sequence of basket tied arch bridge

作　　者：魏初材 Wei Chucai(Fujian Academy of Building Research Co.,Ltd.,Fujian Green Building Technology Key Laboratory,Fuzhou 350108,China)

机构地区：[1]福建省建筑科学研究院有限责任公司,福建省绿色建筑技术重点实验室,福建福州350108

出　　处：《山西建筑》2021年第24期112-115,共4页Shanxi Architecture

摘　　要：以××简支提篮系杆拱桥为工程背景,设计了3种不同的张拉顺序,通过Midas Civil有限元软件对张拉顺序进行施工过程模拟分析。结果表明,3种张拉顺序对拱肋、主梁的影响不同;在验算确保吊索张拉过程各构件具有足够安全储备情况下,张拉方案可优先考虑张拉过程的操作性、便捷性,其次考虑张拉顺序对结构的影响。Taking a simply supported basket tied arch bridge as the engineering background,this paper designed three different tensioning sequences,simulated and analyzed the construction process of tensioning sequence through the Midas Civil finite element software.The results showed that the three tensioning sequences had different effects on arch ribs and main beams;under the sufficient safety reserves condition of all components in checking calculation and ensuring sling tensioning process,the tensioning scheme could give priority to the operability and convenience of tensioning process,then consider the impact of the tensioning sequence on the structure.

关 键 词：张拉顺序 吊索 系杆拱桥 有限元分析 

分 类 号：U448.225[建筑科学—桥梁与隧道工程]