摘要
在研究了现有混凝土桥梁抗力和荷载时变性的基础上,建立了桥梁动态可靠性的随机过程模型,并利用蒙特卡罗方法计算寿命周期内的动态可靠指标,同时,利用此模型对一座基于全寿命设计理念的试验桥进行时变性能对比分析与寿命预测,对合理、经济、科学的制定维护时间与维护方案具有重要的指导意义。
After studying the existing concrete bridge resistance and load time variability,it establishes the random process model of the bridge dynamic reliability,and calculates the dynamic reliability indicator within the life circle with Monte Carlo method.At the same time,it makes time-varying performance comparative analysis and life predication on a test bridge based on whole-life design concept with this model,which has an important guiding significance for rationally,economically and scientifically formulating maintenance time and maintenance program.
出处
《山西建筑》
2010年第19期317-319,共3页
Shanxi Architecture
关键词
桥梁劣化
动态可靠度
蒙特卡罗方法
全寿命设计
bridge deterioration
dynamic reliability
Monte Carlo method
whole-life design
