摘要
依托哈萨克斯坦国阿斯塔纳轻轨项目,延用前苏联标准,采用两点等效集中荷载法,对25 m和30 m的预应力混凝土箱梁进行了极限荷载下的破坏性试验研究,以检验设计和施工质量是否符合规范要求。在采用中哈两国标准计算、推导、差异性对比的基础上,采用我国设计建立的数字模型,按相同方式进行模拟分析,并与现场试验结果进行了对比。其结果表明,中国的设计方法和理论具有先进性和合理性,可为中哈两国桥梁标准间的融合、技术合作起到一定的示范作用。该研究成果和方法可供同行参考。
Based on Astana light rail in Kazakhstan and standard of the former Soviet Union,the destructive tests of prestressed concrete box girders of 25m and 30m under ultimate load were carried out by two-point equivalent concentrated load to check whether the design and construction quality meet the specification requirements.On the basis of calculation,derivation and comparison of differences between China and Kazakh,the Chinese digital model is adopted to simulate and analyze in the same way,and the results are compared with field test.The results show that Chinese design methods and theories are advanced and reasonable and improve integration of bridge standards and technical cooperation between the two above countries.The study can provide reference for peers.
作者
熊军辉
Xiong Junhui(Beijing Urban Road and Bridge Construction Group Co.,Ltd.,Beijing 100022,China)
出处
《市政技术》
2021年第3期44-50,77,共8页
Journal of Municipal Technology
关键词
箱梁
两点等效集中荷载法
极限荷载
模拟试验
中哈两国标准差异
box girder
two-point equivalent concentrate load
ultimate load
simulation test
standard differences between China and Kazakhstan
