对大跨度叠层空腹桁架整体转换结构几个力学问题的讨论  

DISCUSSION ON SEVERAL MECHANICAL PROBLEMS OF INTEGRAL TRANSFER STRUCTURE WITH LARGE-SPAN LAMINATED OPEN-WEB TRUSS

作　　者：傅传国[1] 王广勇[1] 蒋永生[2] 

机构地区：[1]山东建筑工程学院,济南250014 [2]东南大学,南京210096

出　　处：《工业建筑》2004年第1期32-35,65,共5页Industrial Construction

基　　金：山东省科技发展基金项目 (编号 :9812 0 63 0 1)资助

摘　　要：就一种大跨度叠层空腹桁架整体转换结构的杆件受力性质 ,施加预应力引起的转换结构杆件轴向压缩对结构的影响 ,参与整体转换的结构层数变化对其内力及变形的影响 ,转换结构水平与竖向杆件间的刚度关系以及抗震设计基本原则诸项问题进行了分析讨论 ,探讨了该种转换结构设计中的几个基本概念问题并提出相应设计建议 ,进而可为相关工程设计提供参考。It is analyzed and discussed that the streassed property of members for an integral transfer structure with large-span laminated open-web trusses, the effect of axial compression of the members on the structure due to prestressing force, the effect of changing the layers of the transfer structure on its internal force and deformation, the rigid relation between the vertical and horizontal members, as well as the principles of aseismic design. Several basic conceptual problems in the design of this structure are also explored, and corresponding proposals are given, which may be a reference for the design of relevant projects.

关 键 词：叠层空腹桁架 转换结构 杆件 结构设计 力学分析 抗震设计 

分 类 号：TU318[建筑科学—结构工程]