大悬臂盖梁现浇施工支撑体系的设计与选型  

Design and Selection of the Supporting System for Cast-in-Place Construction of Long Cantilever Capping Beams

作　　者：阮彩霞 毛洪广 陈炼 吴双 侯宁 徐方圆 RUAN Cai-xia;MAO Hong-guang;CHEN Lian;WU Shuang;HOU Ning;XU Fang-yuan(Taizhou Traffic Engineering Management Center,Taizhou 318000,China;Zhejiang Communications Construction Group Co.,Ltd.,Hangzhou 310000,China;Zhejiang Sci-Tech University,Hangzhou 310018,China;Zhejiang Institute of Communications,Hangzhou 311112,China)

机构地区：[1]台州市交通工程管理中心,台州318000 [2]浙江交工集团股份有限公司,杭州310000 [3]浙江理工大学,杭州310018 [4]浙江交通职业技术学院,杭州311112

出　　处：《浙江交通职业技术学院学报》2024年第2期40-44,共5页Journal of Zhejiang Institute of Communications

摘　　要：本文探讨在温岭市既有国道中央分隔带中新建大悬臂高架桥的施工策略,提出两种具有针对性的施工方案:门式支架与无落地支架。通过结构体系分析、截面设计和有限元模拟,揭示各自的优劣所在。门式支架刚度大,但会对地面通行能力产生一定程度的挤压和限制;无落地支架劣势是梁端变形较大,但其在施工过程中不会影响地面通行。实际施工时,工程人员可以根据现场实际情况灵活选择最适合的施工方案。This paper discusses the construction strategy of the new large cantilever viaduct in the central reservation of the existing national highway in Wenling City,and proposes two targeted construction schemes:door-like scaffold and no-floor support system.The advantages and disadvantages of the two schemes are given through structural system analysis,cross-section design and finite element simulation.The door-like scaffold has large stiffness,but it will squeeze the ground access ability;the no-floor support system has larger deformation,but it does not affect the ground access.Duning the actual construction,the engineers can flexibly choose the most suitable construction plan according to the actual site conditions.

关 键 词：大悬臂盖梁 支撑体系 门式支架 无落地支架 有限元分析 

分 类 号：U446.3[建筑科学—桥梁与隧道工程]