关于混凝土三明治复合板曲性能计算方法的研究
Mai-Li Cheng1, Guo-Zhuang Hu1, Hong-Qi Wang2
1School of Architectural Engineering, Yanan University, Yan'an 716000, China.
Materials (Basel, Switzerland)
|June 19, 2024
概括
这项研究分析了使用弹性薄板理论在缩负荷下的混凝土三明治板. 调查结果显示,混凝土层承受了负载,支位置显著影响了性能和效率.
科学领域:
- 结构工程 结构工程
- 材料科学 材料科学 材料科学
背景情况:
- 混凝土三明治板在施工中具有优势,但它们在集中负荷下的曲行为需要详细分析.
- 了解承载机制和变形特征对于优化其结构性能至关重要.
研究的目的:
- 为了研究混凝土三明治面板的曲行为,这些面板受到集中边界条件的约束.
- 开发一种用于分析内部力和位移的计算方法.
- 用工程实例来验证拟议的方法.
主要方法:
- 利用Kirchhoff的弹性薄板理论来建模面板的几何变形,物理条件和平衡.
- 构建一个分层分析模型来导出曲变形的基本微分方程.
- 在集中支下获得内部力和位移的数学表达式.
主要成果:
- 混凝土八层主要承受负载;核心层对曲能力的贡献是可以忽略不计的.
- 面板在分布式负载下经历平面外曲,在混凝土厚度中进行线性应力分布.
- 支位置极大地影响变形和轴承效率;优化增强了负载转移.
结论:
- 开发的计算方法准确地预测了混凝土三明治板的行为,除了局部支持区域.
- 优化支布局是提高负载传输效率和整体结构性能的关键.
- 该研究为在特定边界条件下设计混凝土三明治板提供了可靠的分析工具.
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