基于有限元模拟的债券滑动效应对地震脆弱的学校钢筋混凝土建筑框架的调查
Haewon Kang1, Kihak Lee2, Suenghun Shin3
1Department of Architectural Engineering, Gyeongsang National University (GNU), Jinju- daero, Jinju-Si, 52828, Gyeongsangnam-do, South Korea.
Scientific reports
|March 10, 2026
概括
对债券滑动效应的准确建模对于评估钢筋混凝土 (RC) 学校建筑的地震性能至关重要. 非线性-不弹性模型精确地捕捉了hysteresis行为,与高估性能的完美结合模型不同.
科学领域:
- 结构工程 结构工程
- 地震工程的工程是地震工程.
- 材料科学 材料科学 材料科学
背景情况:
- 钢筋混凝土 (RC) 学校建筑由于地震细节不足而遭受重大地震损坏.
- 低封闭导致钢筋和混凝土之间的结合失败,这是一个关键的漏洞.
- 准确的债券滑动效应建模对于可靠的地震性能评估至关重要.
研究的目的:
- 调查有限元 (FE) 模型的歇斯底里行为,用于地震易受影响的RC学校建筑框架.
- 比较三个结合建模方法:完美,线性-弹性和非线性-不弹性.
- 对关键歇斯底里斯参数的结合滑动效应的模拟变化进行量化.
主要方法:
- 在三个步骤的过程中开发FE模型:柱,梁-柱接头和框架.
- 使用准静态循环负荷测试进行实验验证.
- 将模拟反应与实验数据进行比较,以评估结合模型.
主要成果:
- 完美的结合模型大大高估了关键的歇斯底里斯参数,包括能量消散 (增长了53.7%).
- 非线性-不弹性结合模型表现出高精度,复制出低于5.0%的误差的歇斯底里行为.
- 线性弹性模型显示了完美和非线性不弹性模型之间的中间准确性.
结论:
- 不适当的粘合模型,特别是完美的粘合假设,可以夸大易受RC框架的地震性能.
- 推使用非线性-不弹性结合模型来准确模拟RC结构中的地震反应.
- 准确的债券滑坡建模对于现实的地震脆弱性评估和改造战略至关重要.
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