摘要
研究钢筋混凝土铁路桥梁受弯构件可靠指标,讨论可靠指标随配筋率以及恒荷载与活荷载标准值比值的变化;确定受弯构件可靠指标的范围。基于现行铁路混凝土桥梁规范的容许应力法,得到钢筋混凝土桥梁受弯构件抗力的统计参数,计算表明钢筋混凝土铁路桥梁的可靠指标为5.8～6.5。
The reliability index and its variation were studied range of the RC flexural member of the railway bridge with the reinforcement ratio as well as the ratio of characteristic value of dead load and live load. Based on the allowable stress method in the current code for the design on reinforced and pre - stressed concrete structure of railway bridge and culvert, the resistance statistical parameters of flexural member of railway bridge were cal- culated. The results show that the reliability index of the RC flexural member of the railway bridge is from 5.8 to 6.5
出处
《铁道科学与工程学报》
CAS
CSCD
北大核心
2012年第4期8-13,共6页
Journal of Railway Science and Engineering
基金
铁道部科技开发计划项目(2010G001-C)
关键词
铁路桥梁
钢筋混凝土
受弯构件
可靠指标
railway bridge
reinforced concrete
flexural member
reliability
