公路交通技术
公路交通技術
공로교통기술
TECHNOLOGY OF HIGHWAY AND TRANSPORT
2014年
6期
97-102
,共6页
部分斜拉%钢桁梁桥%施工%仿真分析
部分斜拉%鋼桁樑橋%施工%倣真分析
부분사랍%강항량교%시공%방진분석
partially cable-stayed%steel truss bridge%construction%simulated analysis
重庆千厮门嘉陵江大桥主桥为公轨两用钢桁梁部分斜拉桥，跨径布置为88 m+312 m+240 m+80 m。作为国内首座重载公轨共建钢桁梁斜拉桥，千厮门嘉陵江大桥主梁刚度大，斜拉索索力大，索力调整困难，为此提出斜拉索1次张拉到位的总体施工方法，并通过仿真分析实现施工方案优化。现场应用表明斜拉索1次张拉到位施工方法可简化施工步骤，提高工效。
重慶韆廝門嘉陵江大橋主橋為公軌兩用鋼桁樑部分斜拉橋，跨徑佈置為88 m+312 m+240 m+80 m。作為國內首座重載公軌共建鋼桁樑斜拉橋，韆廝門嘉陵江大橋主樑剛度大，斜拉索索力大，索力調整睏難，為此提齣斜拉索1次張拉到位的總體施工方法，併通過倣真分析實現施工方案優化。現場應用錶明斜拉索1次張拉到位施工方法可簡化施工步驟，提高工效。
중경천시문가릉강대교주교위공궤량용강항량부분사랍교，과경포치위88 m+312 m+240 m+80 m。작위국내수좌중재공궤공건강항량사랍교，천시문가릉강대교주량강도대，사랍색색력대，색력조정곤난，위차제출사랍색1차장랍도위적총체시공방법，병통과방진분석실현시공방안우화。현장응용표명사랍색1차장랍도위시공방법가간화시공보취，제고공효。
Main bridge of Chongqing Qiansimen Jialing River Bridge is a partially cable-stayed steel truss bridge for both highway and railway and its span is 88 m+312 m+240 m+80 m. As the first heavy-load co-constructed steel truss cable-stayed bridge at home, Qiansimen Jialing River Bridge is characterized by big rigidity of girder, large stayed cable force and difficulty in adjustment of cable force, for this purpose this paper proposes an overall construction method of tensioning stayed cables in place one time, and achieves optimization of construction scheme via simulated analysis. Site application shows than the construction method of tensioning stayed cables in place one time can simplify construction steps and improve work efficiency.
