高支模系统少支架法施工技术  

Construction Technology of High Formwork System with Few Supports Method

作　　者：谢圣浩 XIE Shenghao(Hongrun Construction Group Co.,Ltd.,Ningbo,Zhejiang,315000,China)

机构地区：[1]宏润建设集团股份有限公司,浙江宁波315000

出　　处：《智能城市应用》2024年第2期51-54,共4页Smart City Application

摘　　要：现浇箱梁施工,支架结构安全可靠是保证施工顺利进行的前提。目前宁波地区市政桥梁施工大部分采用满堂支架法。近几年市政桥梁建设规模日益增大,城市桥梁施工环境越来越复杂,跨河、跨路、跨现状桥梁施工已成常态,且高架越来越高,满堂支架法已无法适应跨径大、高度高、地形复杂的现浇桥梁施工要求,而大管径钢管柱和大梁组合支架施工法(即少支架法)更好地能适应复杂条件下桥梁支架的施工要求。文中以机场路(青林湾大桥—江北大道)快速化改造工程Ⅱ标段为研究对象,根据工程特点和施工实际情况,对高支模系统少支架法基础、下部结构、上部结构、支模架调节段设计及施工技术进行了详细的分析,并总结了相关技术措施。In the construction of cast-in-place box girders,the safety and reliability of the support structure is a prerequisite to ensure the smooth progress of the construction.At present,the majority of municipal bridge construction in Ningbo area adopts the full hall support method.In recent years,the scale of municipal bridge construction has been increasing,and the construction environment of urban bridges has become increasingly complex.Bridge construction across rivers,roads,and the current situation has become the norm,and the elevated structures are getting higher.The full span support method can no longer meet the construction requirements of cast-in-place bridges with large spans,high heights,and complex terrain.However,the combination support construction method of large-diameter steel pipe columns and large beams(i.e.,the few support method)can better adapt to the construction requirements of bridge supports under complex conditions.The second section of the rapid renovation project of Airport Road(Qinglinwan Bridge Jiangbei Avenue)is taken as the research object in the article.Based on the characteristics of the project and the actual construction situation,a detailed analysis is conducted on the design and construction technology of the low support method foundation,lower structure,upper structure,and support frame adjustment section of the high formwork system,and relevant technical measures are summarized.

关 键 词：现浇箱梁 高支模系统 少支架 

分 类 号：TU755.2[建筑科学—建筑技术科学]