摘要
对某大跨度自锚式悬索桥进行了通车前荷载试验,试验内容包括四个工况,即主跨1/2截面、主跨1/4截面、塔梁结合处、边跨截面的应力和挠度试验;试验进行了平截面假定试验,了解了该桥在建成后的工作状态和安全承载能力;最后,对大桥的动力特性进行空间建模和计算,得到大桥的动力特性,本研究对自锚式悬索桥的静力性能和动力特性获得了认识。
Load test before traffic opening is conducted for a large - span self - anchored suspension bridge. The test includes four working conditions, i.e. stress and flexure test of 1/2 cross section, 1/4 cross section of main span, joint between bridgehead and beam and side span cross section; during the test, plane cross section hy- pothesis test is conducted, so that the working condition and safe bearing capacity of the bridge after construction is obtained. Finally, space modeling and calculation of the dynamic property of the bridge are performed and the dy- namic properties of the bridge are obtained. This research provides some information about static force property and dynamic property about self- anchored suspension bridge.
出处
《北方交通》
2012年第8期46-48,共3页
Northern Communications
关键词
自锚式悬索桥
静载试验
动力特性
Self- anchored suspension bridge
Static load test
Dynamic property
