太原理工大学学报2012，Vol.43Issue(4)：499-501,510,4.
高速公路桥梁动力响应统计分析
Statistics Analysis on Dynamic Response of Expressway Bridge
摘要
Abstract
Nowadays, with the rapid development of the traffic infrastructure construction and the growing of the traffic flowing and speed, the vehicle-bridge coupling vibration research has become the focus of the bridge engineering study. The dynamic response of the bridge under the traffic flowing is one of vital parameters for the vehicle-bridge coupling vibration analysis. In this paper, a methodology, employing radar speed gun, video recorder, and dynamic strain tester in combination with manually recording,was used to continuously and detailedly investigate the traffic loads on the expressway bridge within 24 hours a day. With this approach, all the critical parameters, such as vehicle type, speed, traffic lane, the arriving time of the traffic and the bridge-vehicle dynamic interaction,were recorded. In this investigation, firstly the dynamic responses of 8 beams of the bridge under 5 650 individual vehicles driving through the bridge were recorded, secondly statistics analysis was made for the record of each beam, and finally the space-time distribution laws of the dynamic response of the bridge under the traffic flowing were studied extensively. The result of this study could provide helpful theoretic guidance and supporting data for the vehicle-bridge coupling vibration research.关键词
高速公路/交通荷载调查/动力响应/多峰分布Key words
expressway bridge/ traffic loading/ dynamic response/ Trimodal distribution分类
交通工程引用本文复制引用
王涛,韩万水,黄平明..高速公路桥梁动力响应统计分析[J].太原理工大学学报,2012,43(4):499-501,510,4.基金项目
国家自然科学基金资助项目(50808018) （50808018）
中央高校基本科研业务费专项资金资助项目(CHD2011JC012) （CHD2011JC012）
