Fatigue Load Vehicles Model of City Bridges
Bridge fatigue load vehicles model is the precondition of the fatigue checking computations,and must be iucubrated. According to the traffic investigation in Shanghai and Guangzhou city, analyzed representative vehicles axle weight and frequency. Based on the linearity Miner fatigue cumulative damage rule, progressed equivalent vehicles axle weight and wheelbase,predigested the representative vehicles to two-axle vehicle or threeaxle vehicle fatigue model, where the two-axle vehicles former axle weight and back axle weight are 35kN and 80kN accordingly, wheelbase is 43m, and it is possessed 14.41％ of total traffic, the three-axle vehicles former axle weight, middle axle weight and back axle weight are 34kN,88kN and 108kN accordingly, former wheelbase and back wheelbase are 3.7m and 5.5m accordingly, and it is possessed 3.75％ of total traffic.The checking computations results indicated that the model operated conveniently and had quite high precision. Advanced the apply condition of the Fatigue Load Vehicles Mode.
vehicle load fatigue bridge model
ZHU Hong-bing YU Zhi-wu ZHU Hong-bing
Civil and Architecture College Central South University Changsha,China Civil Engineering College Wuhan University of Science and Technology Wuhan, China
国际会议
长沙
英文
993-996
2009-10-10（万方平台首次上网日期，不代表论文的发表时间）