暗扣型屋面板抗风揭试验及加固方式研究  

RESEARCH ON WIND-UPLIFT RESISTANCE TEST AND REINFORCEMENT METHOD OF CONCEALED FASTENER METAL ROOFING PANEL

作　　者：高涛 段威阳 李晓东[2] 易桂香[2] GAO Tao;DUAN Weiyang;LI Xiaodong;YI Guixiang(China Jingye Engineering Technology Co.,Ltd.,Beijing 100088,China;Central Research Institute of Building and Construction Co.,Ltd.,Beijing 100088,China)

机构地区：[1]中国京冶工程技术有限公司,北京100088 [2]中冶建筑研究总院有限公司,北京100088

出　　处：《工业建筑》2021年第12期96-101,共6页Industrial Construction

摘　　要：暗扣型屋面板由于构造简单,安装方便,保证防水效果等优点得到了广泛应用。但其连接方式主要依赖于波峰处的卡扣连接,风吸力较大时,波谷的拱起变形容易导致波峰的过大变形从而与支架脱开,在沿海地区,该板型的屋面板被掀起的案例时有发生。由于板件与支架之间受力复杂不易模拟计算,GB 50896—2013《压型金属板工程应用技术规范》明确要求压型金属板屋面系统宜经抗风揭试验验证系统的整体抗风揭能力。通过对暗扣型屋面板的使用情况、构造原理及破坏情况的分析研究,提出有针对性的加固措施,并根据抗风揭试验得出CC750暗扣型屋面板在加固前和分别采取三种加固方案后的破坏风压,得出最佳加固组合方案,最后根据试验结果及实际情况进一步提出切实可行的加固措施及建议。The concealed fastener metal roofing panel has been widely used because of its simple structure, convenient installation and ensuring waterproof effect. However, its connection mode mainly depends on the snap connection at the wave crest. When the wind uplift is large, the arching deformation of the wave trough is easy to lead to the excessive deformation of the wave crest, which is separated from the support. In coastal areas, this type of roofing panel is lifted from time to time. Because the stress between the plate and the support is complex and difficult to simulate, Technical Code for Application of Profiled Metal Sheets(GB 50896-2013) clearly requires that the profiled metal roofing system should be tested to verify the overall wind-uplift resistance capacity. Through the analysis and research on the use, structural principle and damage of the concealed fastener roofing panel, targeted reinforcement measures were put forward. The damage wind pressures of CC750 concealed fastener roofing panel before and after reinforcement were obtained according to the wind-uplift resistance test, which the best reinforcement combination scheme could be selected. Finally, according to the test results and the actual situation, practical reinforcement measures and suggestions were put forward.

关 键 词：暗扣型屋面板 金属围护系统 抗风揭试验 加固方式 

分 类 号：TU317[建筑科学—结构工程] TU746.3