压缩干制成的材料特征 压缩干制成的中型元素与岩聚合物的材料特征
Adam Piekarczyk1, Łukasz Drobiec1
1Department of Building Structures, Faculty of Civil Engineering, Silesian University of Technology, 44-100 Gliwice, Poland.
Materials (Basel, Switzerland)
|November 27, 2024
概括
这项研究引入了使用珀莱特聚合物的创新性干,提供了出色的绝热和降低密度. 研究为安全的结构设计提供了关键的机械参数,解决了当前建筑规范中的差距.
科学领域:
- 材料科学 材料科学 材料科学
- 结构工程 结构工程
- 建筑工程技术 建筑工程技术
背景情况:
- 由于缺乏编码的设计方法,干式体施工的利用不足.
- 现有的标准没有充分解决干结构的独特行为和设计.
- 需要可靠的材料参数,以便有意识和安全地设计干式体.
研究的目的:
- 介绍一项创新的干墙解决方案的测试结果,该解决方案使用扩展石聚合物.
- 为了确定设计垂直负荷的干结构的材料参数.
- 开发用于线性和非线性结构分析和横截面设计的材料模型.
主要方法:
- 测试使用扩展珍珠岩聚合物制成的九个干式造板.
- 确定材料属性,包括散装密度和导热性.
- 应用来自欧元代码的"设计辅助测试"程序来推导压力强度值.
- 分析应力-张力 (σ-ε) 关系以确定材料模型.
- 评估非线性变形及其对承载能力降低因素的影响.
主要成果:
- 珀莱特聚合物产生了低散密度 (390 kg/m3) 和低热导率 (λ = 0.084 W/m·K).
- 平均压力强度为1.085N/mm2,特征强度为0.873N/mm2,设计强度为0.565N/mm2.
- 材料模型的开发考虑了典型的干的非线性变形.
- 发现二次效应的降低系数低于欧元代码6规定的.
结论:
- 开发的干式造系统在隔热和减少材料密度方面提供了显著的优势.
- 这项研究提供了基本的机械参数和设计工具,填补了干建筑标准中的关键缺口.
- 这些发现使干结构的设计更加准确和安全,并考虑到它们的特殊可变性特征.
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