桐子林斜拉桥主梁的动力测试报告

A Report on the Dynamic Test for the Main Beam of Tongzhilin Cable-stayed Bridge

本文介绍了桐子林斜拉桥动力特性现场实测情况。所用的测试手段有环境随机激振及车辆的强迫激振两种,这两种方法均获得了较好的结果,经过与计算值比较后,证明测试较为成功。最后就测试仪器的布置作了一些探讨,为今后大跨度桥梁的测试提供了一种可行的方法。

In this paper,the conditions about the measured dynamic property of the Tongzhiline cable-stayed bridge in test site are introduced.The testing methods which had been used are random environment-induced vibration and vehicle-induced vibration.Satisfactory results were obtained in either case.The measured values are in well agreement with the calculated ones,so the tests are successful.Finally the arrangement of the testing instruments is investigated.It can be concluded that this is a practicable experiment procedure for long span bridges.