平潭海峡大小练岛水道桥施工监控  

Construction Monitoring for Pingtan Strait Daxiaolian Islands Waterway Bridge

作　　者：何宇 李永强 乐思韬 郭辉 王玉鹏 HE Yu;LI Yongqiang;LE Sitao;GUO Hui;WANG Yupeng(Postgraduate Department,China Academy of Railway Sciences,Beijing 100081,China;Railway Engineering Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;State Key Laboratory of High Speed Railway Track Technology,Beijing 100081,China)

机构地区：[1]中国铁道科学研究院研究生部,北京100081 [2]中国铁道科学研究院集团有限公司铁道建筑研究所,北京100081 [3]高速铁路轨道技术国家重点实验室,北京100081

出　　处：《铁道建筑》2020年第6期40-43,共4页Railway Engineering

基　　金：中国铁道科学研究院集团有限公司基金(2018YJ048)。

摘　　要：大跨度斜拉桥是复杂的高次超静定结构,在施工过程中必须对结构的内力和线形进行有效监测与控制。本文以平潭海峡公铁两用大桥大小练岛水道桥为工程背景,基于无应力状态法与自适应原理,建立了全桥的三维有限元模型,对施工全过程进行分析。通过将仿真分析结果与工程实测数据进行对比验证了施工监控的有效性。The long span cable-stayed bridge is a complex high-order statically indeterminate structure.In the construction process,the internal force and the alignment of the structure must be effectively monitored and controlled.Taking the Pingtan strait rail-cum-road bridge and the Daxiaolian islands waterway bridge as the engineering background,a three-dimensional finite element model of the whole bridge was established based on the unstressed state method and adaptive principle,and the whole construction process was analyzed.The effectiveness of construction monitoring was verified by comparing the simulation results with the actual data.

关 键 词：公铁两用桥梁 施工监控 数值计算 斜拉桥 大节段吊装 钢桁梁 桥梁施工 

分 类 号：U455.1[建筑科学—桥梁与隧道工程]