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翼缘削弱型节点钢结构的抗震性能研究

DOI: 10.6052/1000-0879-13-429, PP. 323-329

Keywords: 翼缘削弱型节点,钢结构,抗震性能,模态分析,时程分析

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Abstract:

采用有限元方法对翼缘削弱型节点钢结构的抗震性能进行了研究,通过模态分析和动力时程分析,详细分析了框架的周期、结构动内力、动应力以及塑性变形区的发展规律等,并和普通节点框架的计算结果进行对比.研究结果表明在小震下,翼缘削弱型节点的抗震性能并不理想,但在大震下,表现出了良好的抗震性能,塑性变形出现在梁端削弱处,塑性应变增加,柱底剪力和顶层位移均比普通节点框架的小,建议在强震区推广使用翼缘削弱型节点.

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