建筑玻璃强度测定标准及夹胶玻璃后破坏强度研究

发布时间：2018-06-02 02:03

本文选题：玻璃强度标准 + 夹胶玻璃　；参考：《上海交通大学》2015年硕士论文

【摘要】：随着人类对建筑物视觉效果要求的不断提高,玻璃越来越广泛地运用到各类建筑物当中,其优良的透光性能契合了大众对建筑的审美需求。玻璃的安全使用性能是其在设计过程中所必须考虑的极为重要的问题。近年来,由于玻璃破裂所引起的人员伤亡及财产损失屡见不鲜,其破坏的突然性以及玻璃残渣极易伤人的性质对于结构工程师而言是巨大的挑战。本文旨在研究玻璃强度的测定方法以及如何解决玻璃脆性破坏的问题,对实际工程设计具有较强的指导意义。介绍了各个国家对于玻璃强度测定的实验标准,主要为美国规范ASTM、英国规范BS EN、俄罗斯规范以及中国规范。从实验样本以及加载环境两方面比较了不同国家规范对于玻璃大面强度以及边缘强度测定的差别,为我国补充和完善玻璃强度测定规范做了参考。从平面内受力和平面外受力两个方面综述了夹胶玻璃后破坏强度的研究方法和现状。提出了三阶段模型与塑性铰线法相结合的理论模型来计算夹胶玻璃后破坏强度,该方法物理意义明确、计算方法简便,针对不同支承方式、不同几何形状的夹胶玻璃均可适用,与实验结果吻合程度较好。运用此模型系统研究了玻璃板厚度,胶层厚度,玻璃板跨度、支承方式以及胶层材料等因素对于夹胶玻璃后破坏强度的影响;计算三角形、矩形以及六边形夹胶玻璃的后破坏强度,比较不同多边形的夹胶玻璃后破坏强度的大小;计算菱形夹胶玻璃的后破坏强度,分析相邻边夹角对于菱形夹胶玻璃后破坏强度的影响。阐述了夹胶玻璃中玻璃与胶层之间的粘结机理。运用商业软件ABAQUS以及黏聚力单元对玻璃与胶层之间的粘结特性进行了有限元模拟,分别比较了黏聚力单元中初始刚度、初始破坏强度以及破坏的断裂能对玻璃和胶层之间粘结性能的影响,为日后进一步深入研究玻璃与胶层粘结特性提供了可行的思路。
[Abstract]:With the increasing demands of human beings on the visual effects of buildings, glass is more and more widely used in all kinds of buildings, and its excellent transmittance can meet the aesthetic needs of the public. The safety performance of glass is an important problem in the design process. In recent years, the casualties and property losses caused by glass rupture are common. The sudden destruction and the nature of glass residue are a great challenge to structural engineers. The purpose of this paper is to study the measuring method of glass strength and how to solve the problem of glass brittleness failure, which is of great significance for practical engineering design. The experimental standards for the determination of glass strength in various countries are introduced, including ASTM, BS ENN, Russia and China. The differences between different national codes for the determination of glass strength and edge strength are compared from two aspects of experimental samples and loading environment, which provides a reference for the supplement and perfection of glass strength measurement standards in China. The research methods and present situation of post-failure strength of glass-clamped glass are reviewed from two aspects: in-plane force and out-of-plane force. A theoretical model combining the three-stage model and the plastic hinge method is proposed to calculate the post-failure strength of the glass-clamped glass. The physical meaning of the method is clear and the calculation method is simple, which can be used for different support modes and different geometric shapes of glass-clamped glass. The results are in good agreement with the experimental results. By using this model, the influence of glass plate thickness, rubber layer thickness, glass plate span, support mode and rubber layer material on the failure strength of glass-clamped glass is systematically studied, and the triangle is calculated. The post-failure strength of rectangular and hexagonal glass-clamped glass was compared, and the post-failure strength of rhombohedral glass-clamped glass was calculated. The influence of the angle of adjacent edges on the failure strength of rhombic glass-clamped glass was analyzed. The bonding mechanism between glass and rubber layer in glass-intercalated glass is described. Using commercial software ABAQUS and cohesion element, the bonding characteristics between glass and adhesive layer are simulated by finite element method, and the initial stiffness of cohesion element is compared respectively. The influence of the initial failure strength and fracture energy on the bond properties between the glass and the adhesive layer provides a feasible way to further study the bonding properties between the glass and the adhesive layer in the future.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU524

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