蚌埠奥体中心体育场大悬挑预应力罩棚钢结构施工新技术  

Novel construction technology of large cantilevered prestressed canopy steel structure for Bengbu Olympic Sports Center Stadium

作　　者：徐成荣 胡舜 王静峰[2,3] 王新乐 高翔 江山 XU Chengrong;HU Shun;WANG Jingfeng;WANG Xinle;GAO Xiang;JIANG Shan(China Construction Eighth Engineering Division Co.,Ltd.,Shanghai 200135,China;School of Civil and Hydraulic Engineering,Hefei University of Technology,Hefei 230009,China;Collaborative Innovation Center of Advanced Steel Structure Technology and Industrialization,Hefei 230009,China)

机构地区：[1]中国建筑第八工程局有限公司,上海200135 [2]合肥工业大学土木与水利工程学院,合肥230009 [3]先进钢结构技术与产业化协同创新中心,合肥230009

出　　处：《建筑结构》2020年第23期43-50,共8页Building Structure

基　　金：教育部新世纪优秀人才支持计划(NCET-12-0838)。

摘　　要：蚌埠奥体中心体育场作为第十四届安徽省省运会的主场馆,首次使用了龙鳞金属屋面板,其建筑艺术造型优美,整体呈蛟龙形态。阐述了蚌埠奥体中心体育场大悬挑预应力罩棚钢结构工程的施工方法和技术重难点;详细介绍了调谐质量阻尼器减振系统、大悬挑预应力的张拉、龙鳞金属屋面板模块化施工等一系列施工关键技术;采用MIDAS Gen建立了蚌埠奥体中心体育场大悬挑预应力罩棚钢结构的整体计算模型,模拟分析了结构施工全过程;采用无线监测系统对结构施工全过程进行了应力和变形监测,并将实测值和计算值进行对比分析。研究了施加调频质量阻尼器前后结构的动力响应,对调频质量阻尼器的减振效果做出了合理性的评价。研究表明:本工程采用的施工新技术和措施为大悬挑预应力罩棚钢结构的安全施工和健康运营提供了有效保障。Bengbu Olympic Sports Center Stadium is the main venue for the 14 th Anhui Provincial Games. Dragon scale metal roof slabs are used for the first time. Its architectural modeling is beautifully shaped and the overall shape is a dragon. The construction methods and technical difficulties of the steel structure project of the large cantilevered prestressed canopy of Bengbu Olympic Sports Center Stadium were explained;a detailed introduction was conducted of a series of key construction techniques such as the tuned mass damper vibration reduction system, the large cantilevered prestressed tension, and the dragon scale metal roof slab module construction;MIDAS Gen was used to establish the overall calculation model of the steel structure of the large cantilevered prestressed canopy of Bengbu Olympic Sports Center Stadium, and the whole process of structural construction was simulated and analyzed;the wireless monitoring system was used to monitor the stress and deformation of the whole structure construction process, and the actual measured value and the calculated value were compared and analyzed. The dynamic responses of the structure before and after applied tuned mass damper were studied, and the rationality of the vibration reduction effect of the tuned mass damper was evaluated. Research shows that: the new construction technology and measures adopted in this project provide effective guarantee for the safe construction and healthy operation of the steel structure of the large cantilevered prestressed canopy.

关 键 词：蚌埠奥体中心体育场 空间钢结构 调谐质量阻尼器减振系统 大悬挑预应力 龙鳞金属屋面板 全过程监测 

分 类 号：TU392.1[建筑科学—结构工程]