游泳池反应堆的基层隔离结构在不同基础条件下的地震性能
Jie Zhao1, Jianshan Wang1, Jiehua Huang2
1School of Architectural Engineering, Dalian University, Dalian, Liaoning, China.
PloS one
|October 18, 2024
概括
地震隔离有效地减轻了地震对游泳池反应堆 (SPR) 的影响. 然而,降低位点刚度会降低隔离的有效性,而冲浪波的高度会增加,但仍然是安全的.
科学领域:
- 核工程 核工程是指核工程.
- 土木工程 土木工程是指土木工程.
- 地震工程的工程是地震工程.
背景情况:
- 游泳池反应堆 (SPR) 是一种创新的,环保的供暖解决方案.
- 评估SPR建筑物的抗震性能对于安全和运营连续性至关重要.
研究的目的:
- 为了研究一个SPR建筑的地震缓解性能,并结合液体流效应.
- 分析不同土壤结构相互作用 (SSI) 条件对孤立SPR结构的抗震能力的影响.
主要方法:
- 使用ANSYS软件开发了一个3D动态交互模型,具有用户可编程特征 (UPF).
- 使用粘性弹边界元素来模拟液体流,用于能量消耗,并使用Housner模型用于动态液压.
- 纳入了土壤结构相互作用 (SSI) 效应,以评估不同基础条件下的地震隔离性能.
主要成果:
- 地震隔离的有效性,通过减小加速,地板响应光谱,位移和基础剪切来衡量,随着地点刚度的下降而下降.
- 沉波高度在所有测试条件下被地震隔离放大,但仍保持在可接受的安全门内.
- 基础的刚度显著影响SPR结构的地震反应和隔离效率.
结论:
- 地震隔离是提高SPR抗震能力的可行策略,但其有效性取决于地点.
- 对于SPR的设计考虑必须考虑到现场条件,SSI和液体泥动态之间的相互作用.
- 该研究为全球SPR的地震设计准则的优化提供了关键数据.
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