| 铅芯橡胶支座微分型恢复力模型屈服前刚度的研究 |
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| 引用本文： | 金建敏,周福霖,谭平. 铅芯橡胶支座微分型恢复力模型屈服前刚度的研究[J]. 工程力学, 2010, 0(10) |
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| 作者姓名： | 金建敏 周福霖 谭平 |
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| 作者单位： | 西安建筑科技大学土木工程学院;广州大学工程抗震研究中心; |
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| 基金项目： | 国家自然科学基金重点项目(90815027); 减震控制与结构安全开放实验室开放基金 |
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| 摘 要： | 该文简介了微分型恢复力模型(Bouc-Wen模型)的发展过程及其在铅芯橡胶支座中的应用,基于两个不同规格支座的压剪试验比较了不同屈服前刚度K1(K1=5Kd―40Kd)的微分型恢复力模型与实测结果的差异,发现了一些有益的规律。之后,计算分析了一个上部结构为8层的隔震模型,铅芯橡胶支座屈服前刚度K1分别取10Kd―40Kd,对于不同的屈服前刚度K1,上部结构底层的水平刚度分别设为100Kd、300Kd、500Kd,用以比较屈服前刚度K1对不同周期结构的地震响应的影响。通过以上对比和计算,对隔震设计中铅芯橡胶支座屈服前刚度的取值给出了合理建议。
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| 关 键 词： | 铅芯橡胶支座 微分型恢复力模型 压剪试验 屈服前刚度 隔震设计 |
STUDY ON PRE-YIELD SHEAR STIFFNESS OF DIFFERENTIAL RESTORING FORCE MODEL FOR LEAD RUBBER BEARING |
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| JIN Jian-min,,ZHOU Fu-lin,TAN Ping. STUDY ON PRE-YIELD SHEAR STIFFNESS OF DIFFERENTIAL RESTORING FORCE MODEL FOR LEAD RUBBER BEARING[J]. Engineering Mechanics, 2010, 0(10) |
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| Authors: | JIN Jian-min ZHOU Fu-lin TAN Ping |
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| Affiliation: | JIN Jian-min1,2,ZHOU Fu-lin2,TAN Ping2 |
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| Abstract: | The paper introduces the development of differential restoring model (Bouc-Wen model) and its application in lead rubber bearing. Based on the compression-shear tests of two different LRBs, the differential restoring force model with various pre-yield shear stiffness ranging from 5Kd to 40Kd is considered and compared with the experimental results, and some important conclusions can be drawn from the results. An isolated eight-story super-structure is used as the numerical example. Its pre-yield shear stiff... |
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| Keywords: | lead rubber bearing differential restoring model compression-shear test pre-yield shear stiffness seismic-isolation design |
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