机构地区: 同济大学土木工程学院桥梁工程系
出 处: 《城市轨道交通研究》 2009年第10期73-76,共4页
摘 要: 近年来预应力混凝土轨道交通高架桥结构形式不断演化。在对比现有轨道交通高架桥中应用的箱梁、T形梁和双线槽形梁等结构形式性能的基础上,结合同济大学桥梁工程系完成的某市地铁8号线和某市地铁2号线U形梁1∶1静载试验,从受力性能、经济性能、施工方法、设计理念等方面对U形梁进行分析。研究表明,U形梁能满足城市轨道交通高架桥梁的要求,在综合方面较双线槽形梁和箱梁有很大优势。 Recently,the structures of urban rail transit overhead bridge are changing constantly.Based on analyses of box-girder,T-shape girder and double-track trough girder used in urban rail transit,and the full-scale static load tests on U-shape girders of Line 8 and Line 2,which are accomplished by Bridge Engineering Department of Tongji University,as well as the traits of U-shape girder and the evolution trend of urban rail transit overhead structures,this paper argues that the U-shape girder is a valuable reference for design and will meet the needs of urban rail transit overhead bridges.