摘要
针对今年事故频发的独柱墩梁桥,使用WIM实测车流数据,开展其抗倾覆可靠度的研究。建立了考虑倾覆力矩与竖向转角的两种破坏模式,并通过统计WIM实测的车流数据,对各车道车辆数、车型组成比例及车重三种不确定因素进行建模,使用蒙特卡洛方法最终对车流进行模拟,并针对某一实例进行了计算。
This article conducted anti-overturning reliability research on Single-column-pier girder bridge by using the measured value from a WIM system. In this essay,two failure modes were built considering rolling moment and vertical angle,and statistics models of three uncertainties( the number of vehicles in different lanes,the proportion of different car models and the car weight) were built based on the measured data from the WIM system. Eventually,the traffic flow can be simulated by Monte Carlo method.
出处
《四川建材》
2018年第2期186-187,共2页
Sichuan Building Materials
关键词
独柱墩梁桥
WIM
抗倾覆
可靠度
single-column-pier girder bridge
WIM
anti-overturning
reliability
