摘要
以某高速公路中的多孔连续梁桥为研究案例,针对多孔连续梁与施工体系转换进行研究,介绍了多孔连续梁施工中常用施工方法——先简支后连续的施工方法,明确了多孔连续梁的特征;并从预制梁板安装、墩顶湿接缝施工、负弯矩施加预应力、永久支座安装、临时支座拆除五方面出发,就施工体系转换所涉及到的施工技术进行介绍,明确施工要点以及难点,为同类工程施工提供参考。
In this paper,the porous continuous beam bridge in a highway is taken as a case study,and the research on the transformation of porous continuous beam and construction system is carried out. The common construction method in the construction of porous continuous beam is introduced. The construction method is simple and continuous,and the porous method is defined. The characteristics of the continuous beam,and from the prefabricated beam plate installation,pier joint wet joint construction,negative bending moment prestressing,permanent support installation,temporary support removal five aspects,the construction technology involved in the construction system conversion introduction,clear construction points and difficulties,and provide reference for similar projects.
作者
李进
Li Jin(Shanxi Provincial Highway Bureau Yuncheng Branch,Yuncheng 044000,China)
出处
《山西建筑》
2018年第32期199-200,共2页
Shanxi Architecture
关键词
多孔连续梁
体系转换
桥梁施工
porous continuous beam
system conversion
bridge construction
