大跨度预应力混凝土连续梁桥施工高程控制  

Elevation control in the construction of long-span prestressed concrete continuous beam bridge

作　　者：蒋洪涛 孙铭辉 王明 JIANG Hongtao;SUN Minghui;WANG Ming(Shandong Hi-speed Group Co.,Ltd.,Shandong Jinan 250094 China;Shandong Hi-speed Engineering Testing Co.,Ltd.,Shandong Jinan 250000 China;College of Transportation Engineering,Shandong Jianzhu University,Shandong Jinan 250101 China)

机构地区：[1]山东高速集团有限公司,山东济南250094 [2]山东高速工程检测有限公司,山东济南250000 [3]山东建筑大学交通工程学院,山东济南250101

出　　处：《山东交通科技》2024年第6期80-82,86,共4页

摘　　要：以济南绕城高速徒骇河特大桥悬臂浇筑施工为实例,利用有限元软件建立模型进行计算分析,为桥梁立模高程和误差分析提供理论数据,采用水准测量法对主梁各施工阶段线形进行实时监测。结果表明:徒骇河特大桥悬臂浇筑施工线形控制较好,二期铺装后实测线形与设计线形较为吻合。In the instance of the Jinan Ring Expressway Tuhai River Extraordinary Bridge,a finite element analysis software was utilized to conduct computational studies,which furnished theoretical data for the elevation setting of formwork and error analysis in the continuous beam bridge.The line shape control of the main beam was monitored in real-time throughout the construction phases via level measurement techniques.The findings demonstrate that the line shape control during the cantilever casting process of the Tuhai River Extraordinary Bridge was effectively maintained,and the actual line shape after the second-phase paving exhibited a close correlation with the pre-camber designed line shape.

关 键 词：桥梁工程 高程控制 数值模拟 连续梁桥 预拱度 

分 类 号：U448.215[建筑科学—桥梁与隧道工程]