摘要
本文通过42片动、静载作用下模型梁试验研究结果,建立了重复荷载作用下PC,PPC,RC梁挠度计算模式并对铁路桥梁挠度可靠度指标进行了分析。研究结果表明,简支铁路混凝土桥梁可靠度指标β=0.75～2.70。
The deflection formula of PC、PPC and RC beam is established through experiment results of 42 beams under static and repeated loading and the reliabiliby index of deflection of railway concrete bridge is analyzed in this paper.The result shows that the reliability index of deflection limit state of simple supported railway concrete bridge is between 0.75 and 2.70.
出处
《长沙铁道学院学报》
CSCD
1991年第3期59-68,共10页
Journal of Changsha Railway University
关键词
混凝土桥
挠度
可靠性
铁路桥
deflection
prestress
railway concrete bridge
reliability
