基于欧洲规范的现有桥梁可靠性水平评估方法

发布时间：2018-03-06 13:47

本文选题：桥梁评估　切入点：欧洲规范　出处：《世界桥梁》2014年04期 　论文类型：期刊论文

【摘要】：为了对现有桥梁结构的可靠性水平进行评估,以确定桥梁最优化的养护和维修策略,通过考虑现有桥梁及新设计桥梁评估过程的不同,提出了基于桥梁构件随机可变结构抗力与随机可变荷载效应的可靠性水平评估方法,并且确定了根据桥梁的使用时间及剩余寿命变化对可靠性水平进行修正的理论基础。修正后的可靠性水平被引入到了抗力和荷载效应的分项安全系数的修正中,提出了混凝土分项安全系数、钢筋的分项安全系数、恒载效应分项安全系数和活载效应分项安全系数的计算方法。
[Abstract]:For the reliability level of the existing bridge structure is evaluated to determine the optimal bridge maintenance and repair strategy, by considering the existing bridge and new bridge design evaluation process, evaluation method of reliability level of bridge component random variable structure force and random variable load effect based on the proposed and established based on the basic theory of updating changes the bridge used time and the residual life of the level of reliability. The reliability level after correction is introduced into the modified subentry safety coefficient of resistance and load effect in the proposed concrete subentry safety coefficient, subentry safety coefficient of steel, calculation method of constant load and live load effect partial safety factor effect of partial safety factor.

【作者单位】：中铁大桥局股份有限公司;
【分类号】：U445.7;U441

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