大跨度桥梁桥面系与主桁共同作用研究  

RESEARCH ON THE COACTION BETWEEN FLOOR SYSTEM AND MAIN TRUSS OF LARGE SPAN BRIDGE

作　　者：崔鑫[1] 张玉玲[1] 潘际炎[1] 

机构地区：[1]铁道科学研究院铁道建筑研究所,北京100081

出　　处：《钢结构》2007年第4期39-43,共5页Steel Construction

摘　　要：对于大跨度钢桁梁桥来说,在运用空间模型进行计算时应考虑桥面系中纵、横梁和主桁的相互作用问题,由于这种共同作用使得纵梁中存在轴力,端横梁存在较大面外弯矩。针对这一问题,运用计算软件STAAD/PRO对标准80m梁和大跨度斜拉桥进行计算,分析结构中的共同作用问题。For long span steel truss bridge,we should take the interaction between longitudinal beam,crossbeam and main truss into account when calculate it in spacial model.Due to this coaction there is axial force in longitudinal beam and large bend in side cross beam.The sofrware STAAD/PRO that calculate a standard beam with 80 m span and large span cable-stayed bridge is used then the coaction problem is analysed in structure.

关 键 词：纵梁 横梁 共同作用 大跨度桥梁 

分 类 号：U441[建筑科学—桥梁与隧道工程]