基于结构胶粘接不同厚度的建筑幕墙结构抗变形能力

徐志彪

摘 要：隨着建筑幕墙结构的不断发展，隐框式建筑幕墙逐渐成为主要发展趋势，其中需要使用结构胶将玻璃粘接到框架上，所以为了提高建筑幕墙的安全性，有必要对结构胶粘接性能对建筑幕墙安全性的影响进行分析。结构胶粘接不同厚度对粘接性能的影响比较突出，于是文章主要分析结构胶粘接不同厚度对建筑幕墙结构抗变形能力的影响。文章对环氧树脂结构胶和丙烯酸酯结构胶进行实验分析，研究结构胶粘接厚度对结构胶变形能力和建筑幕墙变形能力的影响。实验结果表明，当粘接厚度不断增加时，两种结构胶的剪切强度和拉伸强度先增加后降低;当丙烯酸酯结构胶的粘接厚度为0.6时，环氧树脂结构胶的粘接厚度为0.4时，结构胶的拉伸剪切强度为最大值，此时建筑幕墙变形程度受到结构胶粘接变形影响最小;丙烯酸酯结构胶整体变形和建筑幕墙之间的存在正相关性，且结构胶变形是建筑幕墙结构变形位移量的19%～20%。

关键词：结构胶;厚度;建筑幕墙结构;变形

中图分类号：TQ436+.2  文献标识码：A     文章编号：1001-5922（2021）10-0103-04

Deformation Resistance of Building Curtain Wall Structures Based on Structural Adhesive Bonding of Different Thicknesses

Xu Zhibiao

（Yangling Vocational and Technical College， Yang Ling 712100， China ）

Abstract：With the continuous development of the building curtain wall structure， the hidden frame building curtain wall has gradually become the main development trend， which requires the use of structural glue to bond the glass to the frame， so in order to improve the safety of building curtain walls， it is necessary to analyze the influence of structural adhesive bonding performance on the safety of building curtain walls. Different thickness of structural adhesive bonding has a prominent influence on bonding performance， so the paper mainly analyzes the influence of different thickness of structural adhesive bonding on the deformation resistance of building curtain wall structure. This paper conducts an experimental analysis on epoxy resin structural adhesive and acrylic structural adhesive， and studies the influence of the bonding thickness of structural adhesive on the deformability of structural adhesive and the deformability of building curtain wall. The experimental results show that when the bonding thickness increases， the shear strength and tensile strength of the two structural adhesives first increase and then decrease; when the bonding thickness of the acrylic structural adhesive is 0.6， when the bonding thickness of the epoxy structural adhesive is 0.4， the tensile shear strength of the structural adhesive is the maximum value， at this time， the deformation of the building curtain wall is least affected by the deformation of the structural adhesive; there is a positive correlation between the overall deformation of the acrylic structural adhesive and the building curtain wall， and the deformation of the structural adhesive is 19% to 20% of the deformation displacement of the building curtain wall structure.

Key words：structural glue; thickness; building curtain wall structure; deformation

随着科学技术的不断发展，建筑幕墙从明框玻璃幕墙发展到隐框玻璃幕墙，隐框玻璃幕墙通过使用结构胶将玻璃固定在幅框上，然后再将幅框固定到主框上[1-2]。这种幕墙结构相比于明框玻璃幕墙在材料的浪费上比较少，并且更加美观[3]。由于隐框玻璃幕墙是使用结构胶将玻璃进行粘接固定，一开始这种幕墙结构并不被我国人民認可，担心粘接效果不牢固就容易发生重大安全事故。……