基于结构可靠度的在役桥梁安全性评估方法

Safety evaluation method of bridge in service based on structural reliability

基于国内外现有桥梁安全性评估研究成果,结合钢筋混凝土桥梁工程的特点,研究在役钢筋混凝土桥梁承载工作状态的评估方法,着重论述了基于结构可靠度理论应用于在役中小型钢筋混凝土梁桥的安全性评估方法的基本思路、优缺点和适用性。结果表明,该方法能够在实际桥梁加固维修时,通过合理优化分析,确定达到容许的安全等级条件下,可以有限资金进行合理分配,达到良好的维修养护效果。

Based on the domestic and foreign existing bridge safety evaluation research results, combined with the reinforced concrete bridge engineering characteristics, it researches the existing reinforced concrete bridge bearing state evaluation method. It focuses on the basic ideas, advantages and disadvantages and applicability of the structure reliability theory to assess the small reinforced concrete bridge safety. The results show that in the actual bridge reinforcement and maintenance, and based on reasonable analysis, the method is able to determine the allowable level of security conditions, and rationally distribute limited funds so as to achieve good maintenance effects.