| 摩擦-碟簧三维复合隔震支座的性能试验研究 |
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| 引用本文： | 李雄彦,薛素铎.摩擦-碟簧三维复合隔震支座的性能试验研究[J].世界地震工程,2011,27(3). |
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| 作者姓名： | 李雄彦 薛素铎 |
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| 作者单位： | 1. 北京工业大学城市与工程安全减灾教育部重点实验室,北京,100124
2. 北京工业大学工程抗震与结构诊治北京市重点实验室,北京,100124 |
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| 基金项目： | 国家自然科学基金项目(50778006); 北京工业大学博士科研启动基金项目(X0004013200905); 北京市教委科技发展计划项目(KM201110005022) |
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| 摘 要： | 对适用于大跨结构的摩擦-碟簧三维复合隔震支座进行了振动台试验研究,该支座在水平向和竖向分别采用摩擦滑移装置和碟型弹簧隔震。在水平向,试验重点测试了简谐激励和地震动激励下支座的滞回性能,考察了竖向荷载变化及地震动强度对隔震性能的影响,以期为建立水平隔震理论模型提供依据;在竖向,对碟型弹簧的等效阻尼比和等效刚度进行了测试,研究了竖向预压荷载和动力荷载对竖向滞回性能的影响。结果表明,复合隔震支座在水平向和竖向均具有较好的滞回性能,竖向等效阻尼比在0.10～0.15间,且随着预压荷载的增加而增大。
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| 关 键 词： | 三维隔震 振动台试验 滞回 等效阻尼比 |
Experiment of 3-dimensional seismic isolation bearing combined with frictional sliding system and disc springs |
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| LI Xiongyan,XUE Suduo.Experiment of 3-dimensional seismic isolation bearing combined with frictional sliding system and disc springs[J].World Information On Earthquake Engineering,2011,27(3). |
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| Authors: | LI Xiongyan XUE Suduo |
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| Institution: | LI Xiongyan1,XUE Suduo2(1.The Key Lab.of Urban Security and Disaster Engineering,Ministry of Education,Beijing University of Technology,Beijing 100124,China,2.Beijing Key Lab of Earthquake Engineering and Structural Retrofit,China) |
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| Abstract: | A new type of 3-dimensional seismic isolation bearing tested on shaking-table is introduced in the paper.The new bearing is combined with Teflon sliding system and helical springs in the horizontal direction,and the disc springs are utilized for seismic isolation in the vertical direction.To get the data for theoretical model,the hysteretic loops of the bearing excited by the sinusoidal excitation and recorded earthquake waves were tested in the horizontal direction,meanwhile,the performance of the bearing ... |
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| Keywords: | three-dimensional seismic isolation shaking-table test hysteretic properties equivalent damping ratio |
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