在平面内负载下对石头填充面板进行非线性分析的简化均方法
Zhichun Fang1, Renyuan Wang2, Pengfei Wu3
1Institute of Civil and Architectural Engineering, Tongling University, Tongling, Anhui, 244000, China.
Heliyon
|June 7, 2024
概括
这项研究提出了一种新型的墙体填充面板模型,准确预测非线性行为和故障. 该方法简化了分析,同时保持了结构工程应用的高精度.
科学领域:
- 结构工程 结构工程
- 材料科学 材料科学 材料科学
- 计算力学 计算力学 计算力学
背景情况:
- 体填充面板显著影响建筑物的地震性能.
- 现有的模型往往难以准确地捕捉复杂的非线性行为和故障机制.
研究的目的:
- 开发一个统一的,计算效率高的模型,用于固体和穿孔的体填充面板.
- 在剪切变形下准确预测非线性特性和故障模式.
主要方法:
- 一个使用对角排列的小方形面板和两组件弹 (轴和剪切) 的新型等效模型.
- 假设面板具有弹性行为,可塑性集中在连接器弹和边界元素 (柔性和剪切链) 中.
- 对八个实验性造填充面板的验证,具有不同的框架类型和开口.
主要成果:
- 均质模型准确地预测了石头填充面板的非线性横向行为.
- 该模型有效地预测了裂纹模式,与实验和有限元素方法 (FEM) 的结果保持一致.
- 通过简化建模和单向非线性弹实现了分析时间的显著减少.
结论:
- 拟议的统一模型为分析体填充面板提供了一种有效和高效的方法.
- 这种方法提高了结构反应和故障机制的预测准确性.
- 该模型为具有墙填充的建筑物的地震设计和评估提供了宝贵的工具.
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