大型整孔预制箱梁运架工况临时支座方案研究  

Research on Temporary Support Scheme of Large Full-hole Precast Box Girder in Transporting and Erecting Conditions

作　　者：徐羊敏 XU Yangmin

机构地区：[1]浙江数智交院科技股份有限公司,浙江杭州310012

出　　处：《城市道桥与防洪》2023年第1期169-171,I0017,共4页Urban Roads Bridges & Flood Control

摘　　要：对于海域或滩涂区的大规模桥梁或特长连续高架,整孔预制混凝土箱梁因其较好的制造质量及耐久性,在大型预制场地等临建设施得以充分的条件下,是一种十分具有竞争力的桥梁结构型式。结合浙江宁波沿海某高速公路工程,采用有限元软件ANSYS对运架梁工况进行分析,研究多种临时支座方案的受力特性,为大型跨海桥梁等整孔预制桥梁结构工程提供了有益的参考。For the large-scale bridges or extra-long continuous elevated bridges in the sea area or intertidal zone,the full-hole precast concrete box girder is a very competitive bridge structure type because of its good manufacture quality and durability when the temporary facilities such as large prefabricating sites are available.Combined with a coastal expressway project in Ningbo,Zhejiang,the finite element software ANSYS is used to analyze the transportation and erection of girders,and study the force characteristics of various temporary support schemes,which can provide the beneficial reference for the full-hole precast bridge structure projects of large sea-crossing bridges.

关 键 词：连续高架 整孔预制 混凝土箱梁 临时支座 

分 类 号：U445.469[建筑科学—桥梁与隧道工程]