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工程力学  2014 

大跨钢拱薄壳穹顶结构地震响应分析

, PP. 166-170

Keywords: 大跨度穹顶,限元分析,模态,地震分析理论,稳定性

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Abstract:

大跨钢拱薄壳穹顶是一种新型的屋盖结构,采用拱式加劲肋、质量轻便的薄壳材料,壳面与底部建筑物由支座环连接。该文应用时程分析和谱分析两种地震反应分析理论,结合某公司的工程实例,采用ANSYS分析软件对钢拱薄壳穹顶在地震作用下的反应进行模拟分析计算,得出结构受地震力作用时应力、位移的变化规律。计算结果表明,在强烈地震作用下,大跨钢拱薄壳穹顶仅出现了较小的位移,相对于其他穹顶结构具有较好的整体稳定性。

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