摘要
PC桁架桥整体起吊的关键在于:吊拆前应先将桥面附属构配件拆除,以减少整体起吊的重量;应基于Q-H曲线,初选经济合理的浮吊船型号,以节省施工成本;基于浮吊船技术参数,初步筛选整体起吊点布置方案,以确保PC桁架桥在整体起吊中的受力安全;借助SAP 2000有限元软件,对整体起吊点布置方案进行仿真分析,进一步优化整体起吊方案中的关键技术参数,以确保施工安全。
The key to the overall lifting of PC truss bridge lays in the following aspects:dismantling the accessory parts of the bridge deck before lifting to reduce the integral lifting weight;preliminarily selecting the floating crane based on the Q-H curve to save the construction costs;preliminarily filtering the layout plan of the integral lifting point based on the technical parameters of floating cranes,in order to ensure the stress safety of PC truss bridge in integral lifting;carrying out a simulation analysis of the layout plan of the integral lifting point with the help of SAP2000 finite element software,to optimize the key technical parameters and ensure the construction safety.
作者
吴泽力
张宪江
胡帮义
WU Ze-li;ZHANG Xian-jiang;HU Bang-yi(School of Civil Engineering,Huzhou Vocational and Technological College,Huzhou 313000,China)
出处
《湖州职业技术学院学报》
2020年第1期58-61,共4页
Journal of Huzhou Vocational and Technological College
基金
2020年度湖州职业技术学院科研项目“基于BIM的预应力混凝土简支桁架桥梁的整体吊拆技术及有限元分析研究”(2020JC05)的研究成果。
关键词
PC桁架桥
整体起吊
关键技术参数
优化分析
仿真分析
prestressed concrete truss bridge
integral lifting
key technical parameters
optimization analysis
simulation analysis
