关于移动波效应对 Γ 型组合结构的影响的研究,使用同等简化模型
Laite Sun1,2, Yu Bai1,2, Zhengcong Lai1,2
1Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming, Yunnan, China.
PloS one
|August 1, 2023
概括
非传统的 Γ 型结构的地震反应受移动波浪效应的影响. 增加的时差会放大曲时刻,但最初会减少剪切和轴力,其影响因质量和刚度比率而异.
科学领域:
- 结构工程 结构工程
- 地震工程的工程是地震工程.
- 地震分析 - - 地震分析
背景情况:
- 型组合结构是非常规的高层,长跨度设计.
- 地震移动波对这些结构的影响尚未研究.
研究的目的:
- 研究在移动波效应下 Γ 型结构的地震反应.
- 为了建立一个精度相当的简化模型进行分析.
主要方法:
- 开发了一种对 Γ 型结构的精度等同的简化模型.
- 使用修改的大质量方法进行时间历史分析.
- 在不同的条件下分析了地震反应 (剪切力,轴力,曲时刻).
主要成果:
- 增加的地震波时差逐渐增加曲时刻.
- 剪切力和轴力最初减少,然后随着时间差异而增加.
- 旅行波效应在一定的时间差范围内比均激发更轻微.
- 质量比变化 (<10%) 具有轻微影响;硬度比变化 (>20%) 显著影响反应.
结论:
- 移动波效应显著改变了 Γ 型结构中的地震反应.
- 时间差,质量比和刚度比是影响结构行为的关键参数.
- 这些发现为新型高层,长跨度结构的地震设计提供了关键的见解.
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