贵阳奥体中心体育场挑篷预应力设计建议  

Comments on Presressing Design of the Palestra,Guiyang Olympic Center

作　　者：马克俭[1] 肖建春[1] 刘晨[1] 苟卡西[1] 刘金芳[1] 柏川[1] 胡滨[1] 

机构地区：[1]贵州大学空间结构研究中心,贵州贵阳550003

出　　处：《贵州工业大学学报（自然科学版）》2008年第4期1-5,共5页Journal of Guizhou University of Technology(Natural Science Edition)

摘　　要：贵阳奥体中心五万人体育场的看台挑篷最大悬挑近50 m,采用两向斜交管桁架结构。通过局部施加预应力来提高结构刚度。曲线索位于悬挑桁架上弦上部,且预应力索未延伸至结构的有效受力部位。针对设计进行预应力效果的初步分析,提出若干建议与改进措施。The covering for the stand of the 50,000 - seat palestra, Guiyang Olympic Center uses two -way diagonal steel - tube trusses,with maximum cantilever of about 50m. Parts of the structure are prestressed to reduce the maximum structural displacement. Curved prestressing cables are located in the side of canti- levering,thus the cables being not stretched to the effective load - bearing region of the structure. Some comments and improved measures are proposed based on the preliminary analysis of prestressing efficiency.

关 键 词：体育场挑篷 曲线预应力索 局部预应力 

分 类 号：TU394[建筑科学—结构工程]