JG/T 475—2015刚度测定计算部分更正与补充  

Correction and Supplement for Stiffness Measurement and Calculation in JG/T 475—2015

作　　者：林坤华 吴吟 谢丽莎 肖珍 Lin Kunhua;Wu Yin;Xie Lisha;Xiao Zhen(Guangzhou Jointas Chemical Co.,Ltd.,Guangzhou,Guangdong 510665,China)

机构地区：[1]广州集泰化工股份有限公司,广东广州510665

出　　处：《中国建筑防水》2018年第20期9-12,18,共5页China Building Waterproofing

摘　　要：基于同一组硅酮结构密封胶样品的测试数据,分别依据建工行业标准JG/T 475—2015和欧标ETAG 002—2012所给出的刚度计算公式,求刚度K12.5。因两个标准对刚度定义不同,所求刚度的结果有明显的不同。本文通过对比检验上述标准中的公式推导过程,分析了中外检测报告中刚度K12.5差异显著的原因,供国内硅酮结构胶生产企业参考。Based on test data of the same group of silicone structural sealant samples,the stiffness K125 is obtained by calculation formula given according to the construction industry standard JG/T 475-2015 and the European standard ETAG 002-2012.Since the two definitions of the stiffness in the two standards is different,the results obtained are significantly different.This article compares the formula derivation process in the above standards,and analyze the reason why the difference of stiffness K125 is significant,as reference for domestic silicone structural sealant manufacturers.

关 键 词：硅酮结构密封胶 建筑幕墙 割线刚度 初始刚度 

分 类 号：IU504[建筑科学—建筑技术科学] TU578