摘要
泰州大桥钢中塔首次采用纵向"人"字形、横向门式框架结构,采用节段预制-现场安装的方法安装钢塔。建立针对复杂钢塔的全过程施工控制体系,在制造阶段对节段形态以及制造线形进行精确测控的基础上,在安装阶段根据实际安装误差情况确定预先设置调节缝的调整量,达到对钢塔线形误差调整的目的。现场实施结果表明,泰州大桥中间钢塔的线形控制效果良好,最终线形各项精度均优于设计要求。
The middle tower of Taizhou Bridge is a steel frame with longitudinal herringbone shape and lateral gate shape, which is used for the first time. The technology with segments fabricated in the factory and erection at site is used in the construction of the middle steel tower. A full-procedure construction control system to the complicated tower is set up. Based on precise monitoring and control to the shape of the segments and the line-shape of the tower at the fabrication stage, the adjustment of the adjusting gap of the tower is calculated according to the actual error of the tower at the erection stage, and the line-shape error of the tower is adjusted. The result of the implementation of the middle steel tower of Taizhou Bridge indicated that the line-shape control method adapted could be effective, and the precision of final line-shape of the middle steel tower is better than that of the design requirements.
出处
《中国工程科学》
北大核心
2012年第5期29-32,共4页
Strategic Study of CAE
基金
国家科技支撑计划资助项目(2009BAG15B02)
交通行业联合科技攻关项目(2008-353-332-180)
关键词
泰州大桥
中间钢塔
线形控制
误差调整
Taizhou Bridge
middle steel tower
line-shape control
error adjusting
