大跨径波形钢腹板组合梁桥异步施工技术研究  

Study on Asynchronous Construction Technology for Long Span Composite Girder Bridge with Corrugated Steel Webs

作　　者：祝丰平 金光雷 邓文琴 刘朵 张建东[2,3] ZHU Fengping;JIN Guanglei;DENG Wenqin;LIU Duo;ZHANG Jiandong(Ningbo Yinzhou District Traffic Investment Co.,Ltd.,Ningbo 330200,China;School of Civil Engineering,Nanjing Tech University,Nanjing 211800,China;JSTI Group Co.,Ltd.,Nanjing 211112,China)

机构地区：[1]宁波市鄞州区交通投资有限公司,宁波330200 [2]南京工业大学土木工程学院,南京211800 [3]苏交科集团股份有限公司,南京211112

出　　处：《现代交通技术》2022年第2期55-59,92,共6页Modern Transportation Technology

基　　金：江苏省青年基金项目(BK20190681);江苏省高等学校自然科学研究面上项目(19KJB580002);山东省交通运输厅科技计划项目(2020B47)。

摘　　要：波形钢腹板自承重异步施工是针对波形钢腹板组合梁桥的一种新型施工工艺,为了解该施工方法的优势并推广其应用范围,先从施工作业面、挂篮构造及受力性能等方面将该施工工艺与传统悬臂施工方法进行对比,对比结果表明,该新型施工方法具有挂篮构造简单、用钢量小、材料利用率高、工期短及施工稳定性好等优点。再以浙江省宁波市奉化江大桥施工工程为例,给出其主要施工流程及施工注意事项,也为同类工程施工提供技术借鉴。Asynchronous construction with corrugated steel webs self-supporting is a new construction technology for composite girder bridge with corrugated steel webs.In order to understand the advantages of the construction method and promote its application range,this paper compares the new construction method with the traditional cantilever construction method from the aspects of construction work platform,hanging basket structure and mechanical performance.The comparison results show that the new construction method has the advantages of simple hanging basket structure,small steel consumption,high material utilization rate,short construction period and good stability of construction.Finally,the main construction process and construction precautions of the construction method are given based on Fenghua River Bridge,which provides technology for the construction of similar structures.

关 键 词：组合箱梁桥 波形钢腹板 异步施工 工作平面 挂篮 

分 类 号：U448.213[建筑科学—桥梁与隧道工程]