摘要
利用上篇提出的层合单元理论,对一座预应力混凝土斜交桥和一座预应力混凝土连续曲箱梁桥分别进行了空间分析,并与按SAP通用程序所得的值和平面杆系理论计算的值进行了比较,在此基础上,还进行了试验研究和对比。分析和试验研究表明:本文所提出的方法能够十分有效地分析斜弯桥梁的空间效应,而且具有单元少、效率高、适用范围广的优点。
A prestressed concrete skew bridge and a prestressed concrete continuous curved box beam bridge have been analyzed spatially respectively by using the virtual layer element theory proposed in our last paper, and they were compared with values obtained by SAP general procedure or calculated by plane rod system theory. Basing on this, test research and comparison have been carried out. Analysis and test research show that the method proposed in this paper is capable of analyzing efficiently the spatial effect of skew bridge. It has advan-tages such as few elements,high efficiency and wide scope of application.
出处
《公路交通技术》
2002年第2期42-46,共5页
Technology of Highway and Transport
关键词
层合单元理论
预应力混凝土斜弯桥
空间分析
试验研究
virtual layer element theory prestressed concrete skew bridge continuous curved beam bridge spatial analysis test research
