国家跳台滑雪中心预应力拉索张拉施工技术  

Construction technology of prestressed cable tensioning for national ski jumping center

作　　者：黄永银 Huang Yongyin(Jiangsu Huning Steel Mechanism Co.,Ltd.,Yixing 214231,China)

机构地区：[1]江苏沪宁钢机股份有限公司,江苏宜兴214231

出　　处：《山西建筑》2023年第6期66-68,94,共4页Shanxi Architecture

摘　　要：介绍了北京2022年冬奥会国家跳台滑雪中心主场馆顶部建筑结构及其预应力拉索特点,针对该工程拉索数量多、索力各异,锚固点多且大部分锚固点位于高空等特点,经过模拟计算,确定了只张拉外直索和内环索、径向索作为被动受拉辅助索不进行张拉的平衡张拉施工方案,通过现场对施工过程的监测及分析,结果表明施工方案可行。The roof of the national ski jumping center for the Beijing 2022 winter olympics is a prestressed steel structure system.The prestressed cables are composed of external straight cables,internal ring cables and radial cables.The external straight cables and internal ring cables are anchored to the structure obliquely by the roof through the angle change of cable saddle,and the radial cable and internal ring cable connecting support allow radial sliding.In the construction process,the balanced tensioning construction technology of only tensioning external straight cable,internal ring cable and radial cable as passive tension auxiliary cable without tensioning was successfully used,and the tensioning construction of prestressed cable was successfully completed.

关 键 词：国家跳台滑雪中心 预应力拉索 平衡张拉 变角张拉 

分 类 号：TU391[建筑科学—结构工程]