摘要
按照中国《公路桥涵设计通用规范》(JTG D60—2004)、美国《AASHTO LRFD桥梁设计规范》和欧洲《Eurocode EN1991—2003》规范,采用数理统计方法,比较了预应力混凝土简支梁桥的可靠度指标。另外,还参考了铁路桥梁的可靠水平。最后得出结论:中国公路桥梁设计规范的目标可靠度指标在国际上水平较高,中国公路桥梁设计规范最小抗力的可靠度指标高于美国水平,低于欧洲水平;我国铁路桥梁设计比公路桥梁更加保守。
We compare the reliability level of prestressed simply supported beam bridges, according to three codes： China code （JTG D60-2004）, ASSHTO LRFD and Euro code EN 1991-2003, using the theory of probability and statistics. In addition, the reliability index of railway bridge is referenced. The following conclusions are made： China code has a higher target reliability in- dex than the international level; however, the reliability index of minimum resistance is lower than the Euro code and higher than the ASSHTO LRFD code. On the other hand, China＇s railway bridges is more conservatively designed than highway bridges.
出处
《中国科技论文》
CAS
北大核心
2013年第11期1122-1125,共4页
China Sciencepaper
关键词
可靠度
简支梁桥
设计规范
reliability
simple bridge
design code
