摘要
分析了异型桥梁的特点及其与普通箱梁在受力特性上的差异,介绍了异型桥梁的空间分析方法,主要包括梁格法、板单元法、实体单元法;以某异型箱梁桥为背景工程,结合相应的空间计算理论,分别采用以上方法对其进行计算分析,得出异型桥梁在外力荷载及预应力荷载作用下的受力特点,为设计者提供参考.
The characteristics of the irregular box girder as well as its difference from the ordinary box girder on the special property of mechanics are analyzed in this paper.The space analytic methods,which chiefly include grillage method,solid element method and plate element method,are then introduced and employed.On the basis of a certain irregular box girder bridge and the corresponding space calculating theory,the mechanical characteristics of the irregular box girder on which the external loads and prestressed loads exert are obtained.The results are referential for the designers.
出处
《昆明理工大学学报（理工版）》
北大核心
2010年第4期44-50,共7页
Journal of Kunming University of Science and Technology(Natural Science Edition)
基金
云南省科学技术厅科研院所技术开发专项(2008CFO13)
云南省科技项目(云交科[2009](A)-08(a))
关键词
异型箱梁
梁格法
城市桥梁
irregular box girder
grillage method
urban bridge
