| 铅合金减震器的动力特性及适用范围 |
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| 引用本文： | 李亚琦,李小军,刘锡荟.铅合金减震器的动力特性及适用范围[J].地震学报,2005,27(1):86-95. |
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| 作者姓名： | 李亚琦 李小军 刘锡荟 |
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| 作者单位： | 中国北京,100081,中国地震局地球物理研究所;中国北京,100036,中国地震局地震工程研究中心 |
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| 基金项目： | 科技部社会公益研究项目，地震科学联合基金，中国地震局地球物理研究所项目 |
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| 摘 要： | 通过典型高压断路器的振动台实验及有限元模型计算， 分析了铅合金减震器的减震效果. 实验分析结果表明， 铅合金减震器不仅降低了断路器的加速度反应和应变反应， 而且没有增加断路器的位移反应. 其最大应变降低量平均达到30％， 且输入地震动越强， 减震效果越明显. 有限元模型计算分析进一步论证了铅合金减震器的减震效果， 尤其是具有丰富长周期地震动和速度脉冲地震动作用下的减震效果. 基于断路器的地震破坏模式， 本文将减震器的减震效果定义为断路器瓷柱最大应变的降低率. 综合计算结果和振动台试验结果， 本文初步确定了铅合金减震器的适用范围.
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| 关 键 词： | 铅合金减震器 长周期 速度脉冲 |
| 文章编号： | 0253-3782(2005)01-0086-10 |
| 修稿时间： | 2003年10月21 |
DYNAMIC BEHAVIOR AND APPLICABILITY OF LEAD ALLOY ABSORBER |
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| Li Yaqi Li Xiaojun Liu Xihui Institute of Geophysics,China Earthquake Administration,Beijing ,China Earthquake Engineering Research Centre,China Earthquake Administration,Beijing ,China.DYNAMIC BEHAVIOR AND APPLICABILITY OF LEAD ALLOY ABSORBER[J].Acta Seismologica Sinica,2005,27(1):86-95. |
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| Authors: | Li Yaqi Li Xiaojun Liu Xihui Institute of Geophysics China Earthquake Administration Beijing China Earthquake Engineering Research Centre China Earthquake Administration Beijing China |
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| Affiliation: | Li Yaqi 1) Li Xiaojun 1) Liu Xihui 2) 1) Institute of Geophysics,China Earthquake Administration,Beijing 100081,China 2) Earthquake Engineering Research Centre,China Earthquake Administration,Beijing 100036,China |
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| Abstract: | The paper describes the damping effect of Lead Alloy Absorber (LAA) by shake table test and finite element method of a kind of high voltage electrical equipment, LW11 252/Q SF 6 Circuit Breaker (LSCB). The strain reduction of the porcelain bushing of LSCB is defined as the damping effect of LAA in the paper based on the damage pattern of test equipment under earthquake. The test results show that LAA has reduced the acceleration response and strain response of the LSCB, at the same time, it does not increase the displacement response of the LSCB. There is a reduction of 30% in the strain of porcelain pipe. Moreover, the stronger the input ground motion is, the larger the reduction will be. The finite element method also indicates the damping effect of LAA, especially under ground motions with significant long period contents and ground motions with velocity pulse. Combined with the test results and calculation results, the paper gives the applicability of LAA finally. |
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| Keywords: | Lead Alloy Absorber long period velocity pulse |
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