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工程力学  2013 

螺栓节点板抗剪连接的有限元模拟方法研究

DOI: 10.6052/j.issn.1000-4750.2011.07.0444, PP. 119-125

Keywords: 螺栓,抗剪连接,有限元,模拟方法,输电塔

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Abstract:

为了分析螺栓节点板抗剪连接的受力性能,采用常见的三种有限元方法进行模拟计算,比较不同方法的计算结果、建模难度和计算效率等,并将某简单实例的有限元分析结果与试验结果进行比较,最后给出有限元模拟方法的应用建议。研究表明:接触加预紧力是相对最为合理的一种方法,但该方法建模复杂、计算费时;其次是耦合螺孔节点方法,但该方法会在耦合节点处产生应力和位移的畸变;直接粘接方法的模拟效果最差,主要因为该方法将各块连接板粘接成一个整体参与受力,从而导致连接板处的计算结果偏小。

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