| 铅芯橡胶支座隔震储罐地震响应特性分析 |
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| 引用本文： | 李扬,李自力,张艳. 铅芯橡胶支座隔震储罐地震响应特性分析[J]. 工程抗震与加固改造, 2009, 31(3): 39-45,72 |
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| 作者姓名： | 李扬 李自力 张艳 |
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| 作者单位： | 中国石油大学(华东)储运与建筑工程学院,山东,东营,257061 |
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| 摘 要： | 利用双线性恢复力模型模拟铅芯橡胶支座力学特性,探讨了不同类型场地上,隔震储罐在铅芯橡胶支座(LRB)与叠层橡胶支座(RB)两种隔震方式下的地震响应特点.研究表明:铅芯屈服力、场地类型和地震强度是影响LRB减震性能的主要因素.与RB隔震方式相比,LRB具有降低基底剪力、支座位移、晃动波高等优点,但减震效果并不总是好于RB方式,与场地类型和铅芯屈服力的选取有关.特别是Ⅳ类场地上RB支座更适合储罐隔震设计.支座最优屈服力参数选取需要根据储罐自振特点、场地类型和地震强度共同确定.LRB支座更适合在高烈度地区应用,减震效率高而且稳定.
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| 关 键 词： | 隔震储罐 铅芯橡胶支座 双线性模型 地震响应 |
Seismic Response Characteristic of Liquid Storage Tank Isolated by Lead Rubber Bearings |
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| Li Yang,Li Zi-li,Zhang Yan. Seismic Response Characteristic of Liquid Storage Tank Isolated by Lead Rubber Bearings[J]. Earthquake Resistant Engineering and Retrofitting, 2009, 31(3): 39-45,72 |
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| Authors: | Li Yang Li Zi-li Zhang Yan |
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| Affiliation: | Li Yang,Li Zi-li,Zhang Yan(College of Transport&Storage and Civil Engineering in China University of Petroleum,Dongying 257061,China) |
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| Abstract: | The seismic response of based-isolated liquid storage tank isolated by lead rubber bearing(LRB) and rubber bearing(RB) at different sites is investigated.The Bilinear hysteretic model is adopted to simulate the non-linear hysteretic characteristics of force-displacement relationship for LRB.The study shows that yield force of lead plug,site class and earthquake intensity are important factors for the seismic response of isolated tank.The LRB is found to be more effective in reducing base shear,isolator disp... |
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| Keywords: | isolated tank lead-rubber bearing bilinear model seismic response |
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