负风压作用下隐框玻璃幕墙承载行为和脱胶损伤实验研究  

Experimental Study on Bearing Behavior and Debonding Damage of Hidden Frame Glass Curtain Walls Under Negative Wind Pressure

作　　者：周练 张凯[3,4] 徐涵[3,4] 王斐亮 章一萍[1,2] 唐丽娜 杨健 ZHOU Lian;ZHANG Kai;XU Han;WANG Feiliang;ZHANG Yiping;TANG Lina;YANG Jian(Sichuan Provincial Architectural Design and Research Institute Co.,Ltd.,Chengdu 610000,China;Sichuan Engineering and Technology Research Center of Architecture Industrialization,Chengdu 610000,China;State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Key Laboratory for Digital Maintenance of Buildings and Infrastructure,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]四川省建筑设计研究院有限公司,成都610000 [2]四川省建筑工业化工程技术研究中心,成都610000 [3]上海交通大学海洋工程国家重点实验室,上海200240 [4]上海交通大学城市公共建筑与基础设施数字化运维重点实验室,上海200240

出　　处：《上海交通大学学报》2024年第7期1130-1138,共9页Journal of Shanghai Jiaotong University

基　　金：上海市科技创新项目(20DZ1201301、21DZ1204704);国家自然科学基金(52078293);四川省区域创新合作项目(2022YFQ0048)。

摘　　要：隐框玻璃幕墙连接用的硅酮结构胶发生损伤导致玻璃面板坠落是当前幕墙服役过程中的常见问题.现有研究大多采用动力学方法对幕墙的脱胶损伤进行检测和评估,该方法通常需要额外施加荷载激励,且测量的动力响应数据易受环境影响,难以实现幕墙安全状态的可靠评估.为解决上述问题,提出在负风压作用下利用玻璃面板的挠度和转角对玻璃面板的脱胶损伤进行检测和评估的方法.首先,设计一系列隐框玻璃幕墙脱胶损伤实验,验证了在风荷载作用下利用挠度和转角对玻璃面板的安全状态进行检测的可行性;之后,基于实验结果构建了隐框玻璃幕墙安全风险监测评估系统,实现玻璃面板脱胶位置和数量的实时监测和快速识别.It is a common problem that the glass panel falls due to the damage of silicone structural sealant used for the connection of the hidden frame glass curtain walls in the service life of the curtain walls.Most of the existing studies used dynamics methods to detect the debonding damage of curtain walls.However,these methods usually require additional load excitation,and the measured dynamic response data are susceptible to environmental noise,which makes it difficult to achieve reliable assessment of the safety condition of curtain walls.In order to solve the above problems,this paper proposes a method to detect the debonding damage of curtain wall units by using the deflection and rotation angles of the glass panel under the action of negative wind pressure.First,a series of debonding damage experiments of hidden frame glass curtain wall are designed to verify the feasibility of using deflection and rotation angle to detect the safety state of the curtain wall under wind load.Then,based on the experimental results,a safety risk monitoring system for hidden frame glass curtain walls is proposed,which can realize the real-time monitoring of curtain wall units and conduct rapid identification of debonding damage.

关 键 词：隐框玻璃幕墙 负风压 挠度 转角 损伤监测 

分 类 号：TU317[建筑科学—结构工程]