摘要
该文针对目前经常发生的船撞桥事故,依托重庆鹅公岩长江大桥并根据模型水工试验统计各种计算参数,采用目前国际上应用较多的AASHTO规范方法计算鹅公岩大桥在2010年、2020年和2050年的年碰撞概率和年倒塌概率。由计算出的年碰撞风险概率来评估鹅公岩大桥各桥墩在不同年份下的风险等级,根据各墩所处的风险等级采取相对应的防撞措施来降低大桥运营期间遭受的碰撞风险。
In view of the frequent ship collision with bridge accidents at present, and based on the Chongqing Egongyan Yangtze River Bridge and the various calculation parameters obtained through hydraulic tests on the model, the annual collision probability and collapse probability of the Bridge in 2010, 2020 and 2050 are calculated with the most used AASHTO standard method. The annual collision probability is adopted to evaluate the risk levels of the Bridge＇s piers in each year, and the risk levels of the piers are applied to take the corresponding measures to reduce the collision risk of the Bridge in operation.
出处
《重庆建筑》
2017年第12期37-41,共5页
Chongqing Architecture
关键词
鹅公岩
船撞风险
偏航
倒塌
动能折减
鹅公岩大桥
Egongyan
ship collision risk
yaw
collapse
kinetic energy reduction
Egongyan Yangtze River Bridge
