叠合梁斜拉桥混凝土桥面板湿接缝浇筑工序研究  

Study on the Pouring Procedure of the Wet Joints of the Concrete Deck of the Composite Beam Cable-stayed Bridge

作　　者：刘发梁 王荣辉[1] 张卓杰 LIU Faliang;WANG Ronghui;ZHANG Zhuojie(School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510641,China;State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures,Shijiazhuang Tiedao University,Shijiazhuang 050043,China)

机构地区：[1]华南理工大学土木与交通学院,广东广州510641 [2]石家庄铁道大学省部共建交通工程结构力学行为与系统安全国家重点实验室,河北石家庄050043

出　　处：《贵州大学学报（自然科学版）》2021年第1期104-108,119,共6页Journal of Guizhou University:Natural Sciences

基　　金：国家自然科学基金资助项目(51908382);交通工程结构力学行为与系统安全国家重点实验室资助项目(ZZ2020-21)。

摘　　要：叠合梁斜拉桥的施工工序繁多,施工过程会影响最终的成桥状态。以洛溪大桥为背景,在保证施工和成桥运营阶段结构受力安全的前提下,利用Midas civil有限元软件对该桥建立模型进行计算分析,开展桥面板滞后浇筑湿接缝和双节段循环施工对主桥结构受力影响的研究。研究表明,双节段循环施工每个标准节段至少可以节省3.5 d,并且主梁内力在几个不同方案当中处于最优状态,可以满足现场的实际需要,结构内力也可得到保障,并且施工周期也可以得到大幅度缩短。There are many construction procedures for composite beam cable-stayed Bridges,and the construction process will affect the final state of bridge. With the Luoxi Bridge as the background,the Midas civil finite element software is used on the premise of ensuring the safety of the structure during the construction and operation stages of the bridge to calculate and analyze the established model of this bridge. The research on the influence of the delayed pouring of the bridge slab wet joints and the double-section circulating construction on the stress of the main bridge structure was carried out. The results shows that the double-segment cycle construction can save at least 3. 5 days for each standard segment,and the internal force of the main beam is in the optimal state among several different schemes,which can meet the actual needs of the site. The internal force of the structure can also be guaranteed,and the construction period can be greatly shortened.

关 键 词：叠合梁 斜拉桥 施工工序 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]