Cyclic behaviour of low-yield-point steel shear panel dampers
Cyclic behaviour of low-yield-point steel shear panel dampers
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低屈服点钢剪切板阻尼器的循环性能
DOI：
10.1016/j.engstruct.2016.08.002
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发表时间：
2016-11
影响因子：
5.5
通讯作者：
Fan J S
中科院分区：
文献类型：
--
作者：
Xu L Y;Nie X;Fan J S
本文将一种新型低屈服点钢BLY160应用于金属剪切板阻尼装置中。为了深入研究阻尼器的抗震性能，以加载条件和尺寸参数为试验变量，对四组试件进行了反循环加载试验。分析了板宽厚比、板角开孔、加筋筋尺寸和循环荷载历史等因素的影响。通过测试组件的滞回荷载-位移回路、骨架曲线、变形行为和破坏模式等试验性能，评价了阻尼装置的减震效果。特别是在恒幅加载和增幅加载的循环变形条件下，观察到明显的加工硬化。由于低屈服点钢的循环硬化，所测试的阻尼器装置的耗能能力比等效弹性和完全塑性材料制成的钢板高约1.5-2.5倍。本文提出的运动学-各向同性组合硬化模型采用记忆曲面概念，将加载历史效应纳入模型中，可以准确地模拟具有显著应变硬化的复杂滞回性能。通过与试验响应的对比，验证了数值模型的有效性。
In this paper, a new type of low-yield-point steel BLY160 is applied in the metallic shear panel damper device. To intensively investigate the seismic behaviour of the dampers, reversed cyclic loading tests are conducted to four groups of specimens, with the loading conditions and dimension parameters as test variables. The influences of the width-thickness ratio and corner perforation of the panel, the stiffening rib size and the cyclic load history are analysed. Through the experimental performance of test subassemblies, such as the hysteretic load-displacement loops, skeleton curves, deformation behaviour and failure modes, the earthquake mitigation effects of the damper devices are evaluated. In particular, conspicuous work-hardening is observed in the condition of cyclic deformation under both constant amplitude and increasing amplitudes loading. Contributed by the cyclic hardening of the low-yield-point steel, the energy dissipation capacities of the tested damper devices are approximately 1.5–2.5 times higher than that of a steel panel made of equivalent elasticity and perfectly plastic material. The complicated hysteretic performance with significant strain hardening can be accurately simulated by the kinematic-isotropic combined hardening model proposed in this paper, which incorporates the loading history effect by using the memory surface concept. The validity of the numerical model is verified by the comparison of the predicted cyclic behaviour and test responses.
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DOI：
--
发表时间：
2006
期刊：
--
影响因子：
--
作者：
G. Rodgers;J. Chase;J. Mander;Nicholas C. Leach;Caleb S. Denmead;L. Cleeve;D. Heaton
通讯作者：
G. Rodgers;J. Chase;J. Mander;Nicholas C. Leach;Caleb S. Denmead;L. Cleeve;D. Heaton
影响因子：
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作者：
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Li Zi-gang
影响因子：
5
作者：
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通讯作者：
K. Tsai;Huan-Wei Chen;C. Hong;Yung‐Feng Su
DOI：
10.1016/j.jcsr.2008.03.017
发表时间：
2009-02
期刊：
--
影响因子：
--
作者：
R. Hossain;M. Ashraf;F. Albermani
通讯作者：
R. Hossain;M. Ashraf;F. Albermani
影响因子：
4.1
作者：
Chaofeng Zhang;Zhi-sheng Zhang;J. Shi
通讯作者：
Chaofeng Zhang;Zhi-sheng Zhang;J. Shi