含重型储仓设备结构的楼面反应谱分析和储仓设备的抗震设计

王健泽; 周裕洲; 戴靠山; 蒲瑞

doi:10.13204/j.gyjzG21010415

含重型储仓设备结构的楼面反应谱分析和储仓设备的抗震设计

doi: 10.13204/j.gyjzG21010415

王健泽^1,2,3,
周裕洲¹,
戴靠山^1,2,3, ,,
蒲瑞¹

1. 四川大学土木工程系, 成都 610065;
2. 深地科学与工程教育部重点实验室, 成都 610065;
3. 破坏力学与防灾减灾四川省重点实验室, 成都 610065

基金项目:

国家自然科学基金项目（U1710111，51878426）；中国电力建设股份有限公司科研项目（KJ-2016-095）；中央高校基本科研业务费项目（20826041E4193）。

详细信息

作者简介:
王健泽,男,1990年出生,博士,jzwang@scu.edu.cn。

通讯作者:
戴靠山,男,1977年出生,博士,教授,kdai@scu.edu.cn。

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- 文章访问数: 57
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- 被引次数: 0
出版历程
- 收稿日期: 2021-01-04

Floor Response Spectrum Analysis of Structures with Heavy Storage Silos and Seismic Design of Storage Silos

WANG Jianze^1,2,3,
ZHOU Yuzhou¹,
DAI Kaoshan^{1,2,3
, ,},
PU Rui¹

1. Department of Civil Engineering, Sichuan University, Chengdu 610065, China;
2. MOE Key Laboratory of Deep Underground Science and Engineering, Chengdu 610065, China;
3. Failure Mechanics & Engineering Disaster Prevention and Mitigation, Key Laboratory of Sichuan Province, Chengdu 610065, China

摘要

摘要: 重型储仓是工业构筑物中较为常见的设备之一。以某高架式钢储仓结构为研究对象，按是否考虑设备与结构相互作用建立了简化荷载模型与设备-结构一体化模型。选择18组与设计反应谱匹配的地震动为输入，对两类模型开展弹性、弹塑性时程分析与增量动力分析，得到结构的动力响应及储仓支承楼层的线性与非线性楼面反应谱。将非线性楼面反应谱作为储仓设备的抗震分析的输入，求解了储仓设备的地震响应。与设备-结构一体化模型在弹塑性时程分析中得到的储仓响应结果进行对比，验证非线性楼面反应谱用于重型储仓设备抗震设计的合理性。结果表明，考虑结构非线性会导致楼面反应谱峰值发生偏移；随着输入地震动强度的增加，设备与结构的相互作用程度会发生变化。由设备-结构一体化模型得到的楼面反应谱对储仓设备进行单独抗震设计时结果偏保守。
- 工业结构 /
- 高架式钢储仓 /
- 楼面反应谱 /
- 增量动力分析 /
- 设备-结构相互作用
Abstract: Heavy silo is one of the most common equipment in industrial structures. A structure of elevated steel silo was focused. Two numerical models were developed in which one simplified the silo equipment as loadings and the other one modelled the whole equipment-structure system. A total of 18 pairs of ground motions were selected. Linear and nonlinear response-history analysis as well as incremental dynamic analysis were performed. The dynamic responses of the two structural numerical models and the linear and nonlinear floor response spectrum were obtained accordingly. Subsequently, nonlinear floor response spectrum was used as input for response analysis of the heavy silo equipment. The seismic responses of the heavy silo equipment were compared between the results from the floor response spectrum analysis based on the single silo equipment model and the response-history analysis based on the equipment-structure model. The effectiveness of the nonlinear floor response spectrum method in the seismic design of the heavy silo equipment was examined. The results showed that the extent of the nonlinearity sustained by the structure would alter the shape of the floor response spectrum. The input seismic intensity was found to be influential to the interaction between equipment and structure. The seismic design of the heavy silo would be conservative if considering the floor response spectrum derived from the equipment-structure model.
- industrial structures /
- elevated steel silo /
- floor response spectrum /
- incremental dynamic analysis /
- equipment-structure interaction

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