摘要
《玻璃幕墙工程技术规范》（JGJ102--2003）给出的隐框幕墙硅酮结构胶粘结厚度计算中，假定硅酮结构胶发生的变形等于主体结构的层间变形并不合理。本文通过试验和理论分析，研究了不同玻璃面板尺寸、连接构造对硅酮结构胶变形性能的影响，揭示了硅酮结构胶在主体结构侧移下的变形机理。研究表明：在主体结构发生侧移下，当玻璃面板通过硅酮结构胶直接粘贴到主体结构上时，由于玻璃面板在硅酮结构胶带动下发生转动，硅酮结构胶只承担16％-35％的主体结构侧向变形；当玻璃面板通过硅酮结构胶、附框等连接到主体结构上时，由于附框与主体结构连接部位进一步吸收了结构侧向变形，硅酮结构胶仅承担5％-10％的主体结构侧向变形。本文结果对隐框玻璃幕墙硅酮结构胶的设计和施工具有一定的指导意义。
According to the adhesive thickness calculation formula of silicone structural sealant for hidden frame supported glass curtain walls in Technical Code for Glass Curtain Wall Engineering （JGJ 102-2003 ）, the assumption of silicone structural sealant deformation equal to the lateral displacement of main structure is unreasonable. Based on experiment and theoretical analysis, the effects of size of glass panel and the connecting detail on deformation properties of silicone structural sealant are studied, and the deformation mechanism of silicone structural sealant under lateral displacement of main structure is revealed. The results show that glass panel is drove to rotate by silicone structural sealant when the glass panel directly attached to the main structure by silicone structural sealant, the shear deformation of silicone structural sealant deformation is 16% - 35% the lateral displacement of main structure; When the glass panel is connected to the main structure by silicone structural sealant, auxiliary frame and so on, the connecting detail between auxiliary frame and main structure make further absorption on lateral displacement of main structure, the shear deformation of silicone structural sealant is only 5 % -10% the lateral displacement of main structure. The Result has some guidance in design and construction of silicone structural sealant for hidden frame supported glass curtain walls.
出处
《建筑科学》
CSCD
北大核心
2015年第3期43-49,共7页
Building Science
基金
中建股份科技资助(CSCEC-2010-Z-01)
关键词
隐框幕墙
硅酮结构胶
侧向变形
变形机理
hidden frame supported curtain wall
silicone structural sealant
lateral displacement
deformationmechanism
