共查询到17条相似文献,搜索用时 109 毫秒
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对国内行标JGJ 102-2003《玻璃幕墙工程技术规范》、美标ASTM C 1401-02《结构密封胶装配指南》以及欧标ETAG 002《结构密封胶装配体系(SSGS)欧洲技术认证指南》中关于结构胶粘结厚度的计算校核方法进行了分析对比,指出了行标存在的问题. 相似文献
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本文介绍了门窗幕墙工程硅酮胶使用常见问题,并梳理了建筑硅酮胶国内外现场检测标准,特别介绍了ETAG002中的热失重和红外光谱法。通过在工程实例中应用,得出了门窗、玻璃幕墙工程检测标准中应引入红外光谱法、热失重分析法作为胶的结构失效、密封失效的检测分析手段的结论。 相似文献
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介绍了硅酮结构胶国家强制性标准GB 16776的发展历程和具体内容,就该国标的检验项目和性能指标与美标ASTM C1184、欧标ETAG 002作了对比。经比较,在指标要求、测试方法全面性、易操作性上国标优于美标;在施工性能要求、易操作性、测试指标上国标优于欧标,但欧标在测试方法上综合考虑了实际应用因素,据此得出中美欧三大硅酮结构胶标准中GB 16776是要求更高、更严格的标准的结论。 相似文献
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根据欧洲标准ETAG 002的要求,讨论了硅橡胶、填料及交联剂等原材料对硅酮结构胶抗撕裂性能的影响.得出采用纳米碳酸钙或纳米碳酸钙与未处理的碳酸钙复配填料,能够提高硅酮结构胶的抗撕裂性能;采用低黏度的硅橡胶或多官能团的交联剂,提高硅酮结构胶的交联密度,也能提高硅酮结构胶的抗撕裂性能. 相似文献
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外墙外保温系统建筑设计 总被引:2,自引:1,他引:1
节约能源和环境保护是我国国策,因此建筑节能尤其是墙体节能应引起重视.建筑节能是一个系统工程,介绍了我国现行墙体保温标准体系和欧盟EOTA认证标准ETAG004的6项基本要求,提出外墙外保温系统设计主要注意事项,包括正确理解和使用规范标准、充分利用保温材料可塑性、加强抗风压设计、注意翻包构造及系统水蒸气渗透能力等. 相似文献
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意大利米兰市"材料检验试验室"作为官方机构,完成了一项夹片式锚具铸造型锚垫板的荷载传递试验,以确认此项锚垫板用于混凝土结构的负荷能力及安全性。它依据的标准是欧洲标准ETAG 013《预应力结构后张成套组件》和它的"理解文件"(2007年12月发布)。欧洲28个成员国都执行这项标准,域外工程单位也多有采用。我国即将实施的新版锚具国家标准(GB/T 14370)与欧洲标准基本一致。这份试验报告对我国当前情况很有参考价值。在我国预应力行业中,多数从业人员对"荷载传递试验"还比较陌生,不久将会遇到这种试验的工作要求。本文按试验报告原件的章节对试验过程进行了综合梳理和说明,并补充了欧洲标准的相关要点,希望减少读者疑问。 相似文献
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Anneliese Hagl 《Stahlbau》2006,75(6):508-520
The Innovation – Bonding. Essential motivation for establishing the workgroup “Bonding” was that silicone bondings – in the structural engineering well known – received a great importance in the past years regarding application for structural glazing. Long times the application of silicones was only the usage in weather sealings and for sealings of insulated glass units. Due to the special properties of silicone this material has certainly the potential, in addition to the weather seal purpose, to take over also load bearing functions. The European Technical Guideline ETAG002 regulates actually the constructive requirements of line shaped silicone bondings. Nevertheless the knowledge of the real parameters of the pure material and its mechanical properties is very limited. This is the reason, that for using a silicone bonding, planned by engineering principles, experiments are necessary in wide areas. Reliable parameters and material properties are widely unknown, thus the sizing of a general bonding geometry with using Finite Element Analysis is unsatisfactory. The ETAG test specimen for tension is moreover unsuitable for retrieving direct material properties, due to edge effects leading to stress concentrations within the specimen. Therefore getting real parameters of the silicone material out of this kind of tests is nearly impossible. In the working group focus has been given on the development of theoretical models for the material silicone by a combined approach of experiment (material tests) and theory (analysis by FEM). Main objective is the establishment of design criteria for complex bonding geometries by application of engineering principles in the area of structural glazing. Based on the gained experience it will be possible in future: – to design arbitrary bonding geometries – to optimise them with respect to the most possible failure mechanism – to use simple formula and criteria for the design of arbitrary kinds of bondings – to limit extensive testing for each application. Extending the existing work program, it is envisaged in the short term to analyse bonding systems by duromer adhesives (e.g. acrylate, polyurethane). 相似文献
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