期刊论文

中文

交通科学与工程

1674-599X

2017

33

3

37-42

10.16544/j.cnki.cn43-1494/u.2017.03.007

本校为第一机构

针对钢桁梁斜拉桥施工中的杆件制造长度误差,采用参数敏感性分析法,研究因桁梁杆件制造长度误差引起的安装线形偏差在施工过程中的变化和传递规律,以及误差传递对桥梁关键状态的影响.研究结果表明：杆件制造长度误差的作用伴随后续节段的安装而向前传递,新节段的安装线形偏差逐渐增加,误差的传递趋势却在衰减;当杆件制造长度误差达到± 2.0mm 时,对最大悬臂和成桥状态的主梁线形影响显著,其最大偏差分别达到-106和- 101mm.

For the error of manufacturing length of the bar of steel truss girder cable-stayed bridge during construction,its variation,transferring law and how it affects the pivotal condition of bridge by the way were studied by the sensitivity analysis of parame-ters.The results show that the effect of the error of the manufacturing length of the bar passes forward with the following girder segment equipped,the error of assembled ge-ometry of new girder segment gradually increases,but the tendency of error transfer gradually decreases.The effects on the geometry of main girder of the largest cantileve...