| 柱脚弹性约束对门式刚架侧移和内力的影响 |
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| 引用本文： | 童骏,陈以一,伍益莹.柱脚弹性约束对门式刚架侧移和内力的影响[J].结构工程师,2003(2):25-30,35. |
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| 作者姓名： | 童骏 陈以一 伍益莹 |
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| 作者单位： | 同济大学,上海,200092 |
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| 摘 要： | 提出了拉压异性多弹簧柱脚模型以考虑外露式柱脚的弹性转动刚度，并将其引入单层轻型门式钢刚架的分析。算例结果表明：采用一对锚栓固定柱脚的轻型门式刚架，考虑柱脚转动刚度计算所得的最大柱顶侧移与铰接模型相比例移减小20％-40％左右。
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| 关 键 词： | 柱脚 轻型门式刚架 内力 柱顶侧移 弹性 |
The Effect of the Column Base Restraint on the Sway and Internal Forces of the Portal Frame |
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| TONG Jun CHEN Yiyi WU Yiying.The Effect of the Column Base Restraint on the Sway and Internal Forces of the Portal Frame[J].Structural Engineers,2003(2):25-30,35. |
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| Authors: | TONG Jun CHEN Yiyi WU Yiying |
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| Abstract: | A multi-spring model with compression-only and tension-only member is presented to consider the column base rotational stiffness and it is used to analyze the protal frame. The results indicate that for the portal frames the base plates of which are bolted with one couple bolts, the sway of the frame considered with the column base rotational stiffness will be 20~ 40% less than that of the frame considered with pinned column bases. |
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| Keywords: | column base portal frame rotational stiffness sway |
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