| 特征参数对性态谱影响规律的研究 |
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| 引用本文： | 侯红梅,刘文锋,孔令林. 特征参数对性态谱影响规律的研究[J]. 世界地震工程, 2020, 0(1): 025-34 |
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| 作者姓名： | 侯红梅 刘文锋 孔令林 |
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| 作者单位： | 青岛理工大学 土木工程学院,青岛266033;青岛理工大学 土木工程学院,青岛266033;山东省蓝色经济区工程建设与安全协同创新中心,山东 青岛266033 |
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| 基金项目： | 国家自然科学基金项目(50878110) |
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| 摘 要： | 性能化抗震是工程抗震研究的重要方向。根据位移性能水准，计算不同周期结构达到性能水准时所需输入的最大地震动加速度值，建立性态谱；基于性态谱，研究自振周期、恢复力模型和第二刚度折减系数等特征参数对性态谱的影响。研究表明:性态谱表征了周期、性能水准和地震需求的三维谱关系，可预测达到不同性能水准时结构的地震需求；结构自振周期和第二刚度折减系数在短周期段对性态谱有显著影响，随结构自振周期的增大，谱值差别减小；双线型恢复力模型是否退化影响达到相同变形目标时的地震需求，退化模型性态谱谱值小于非退化模型。
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| 关 键 词： | 性能设计指标 性态谱 性能水准 地震需求 |
Study on Influences of characteristic parameters on the performance spectrum |
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| HOU Hongmei,LIU Wenfeng,KONG Linglin. Study on Influences of characteristic parameters on the performance spectrum[J]. World Information On Earthquake Engineering, 2020, 0(1): 025-34 |
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| Authors: | HOU Hongmei LIU Wenfeng KONG Linglin |
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| Affiliation: | 1. School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China;2. Collaborative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone, Qingdao 266033, China |
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| Abstract: | The performance-based seismic design method is an important research topic.According to the displacement performance level,the peak ground acceleration required to be inputted is calculated when structures with different periods reach the performance level,then the performance spectrum is established.The effects of characteristic parameters such as the structural period,the force-restoring model and the second stiffness reduction coefficient on the performance spectrum are studied.The results show that the three-dimensional spectral relation of period,performance level and seismic demand can be used to predict the seismic demand of structures with different performance levels.The structural period and the second stiffness reduction coefficient have significant influences on the performance spectrum in the short period range,and the difference between spectral values decreases with the increase of structural period.Degeneration of the dual linear restoring force model affects the seismic demand when a same deformation target is reached,which the spectral value obtained from a degenerated model is smaller than that of corresponding non-degenerated model. |
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| Keywords: | index of performance design performance spectrum performance level seismic demand |
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