| 锚栓预紧力对柱脚抗剪设计的影响分析Ⅱ:刚接柱脚 |
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| 引用本文： | 王元清,章军,石永久,陈宏.锚栓预紧力对柱脚抗剪设计的影响分析Ⅱ:刚接柱脚[J].低温建筑技术,2005(3):26-29. |
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| 作者姓名： | 王元清 章军 石永久 陈宏 |
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| 作者单位： | 清华大学土木工程系,清华大学结构工程和振动教育部重点实验室,北京,100084 |
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| 摘 要： | 对于轻钢结构刚接柱脚,往往弯矩M和剪力V较大,而轴力N相对较小,对柱脚抗剪的设计要求更加严格。而弯矩M的存在和锚栓预紧力将影响刚接柱脚的抗剪,将直接提高刚接柱脚的抗剪承载力。本文对同一种刚接柱脚有限元计算模型,分别计算刚接柱脚在不同弯矩情况下和不同锚栓预紧力作用下的柱脚抗剪承载力,分析柱脚锚栓预紧力对柱脚抗剪的贡献,并根据计算结果,柱脚设置抗剪件条件为:μF
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| 关 键 词： | 门式刚架 轻钢结构 柱脚 锚栓 |
| 文章编号： | 1001-6864(2005)03-0026-04 |
| 修稿时间： | 2004年3月20日 |
THE INFLUENCE OF PRETIGHTENING FORCE OF FOUNDATION ANCHOR ON SHEAR RESISTANCE, PART Ⅱ : RIGID COLUMN BASE |
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| WANG Yuan-qing,ZHANG Jun,SHI Yong-jiu,CHEN Hong.THE INFLUENCE OF PRETIGHTENING FORCE OF FOUNDATION ANCHOR ON SHEAR RESISTANCE, PART Ⅱ : RIGID COLUMN BASE[J].Low Temperature Architecture Technology,2005(3):26-29. |
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| Authors: | WANG Yuan-qing ZHANG Jun SHI Yong-jiu CHEN Hong |
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| Abstract: | The rigid column base for steel of light-weight buildings with gabled frames is resisting larger moment M and shear V,and the axial force is relatively small,so the design for the shear resistance for column base is more restrict.The moment M and pretightening force in anchors will influcence the behavior of column base under shear force,and the shear resistance of column base is different.This paper calcu lates the shear resistance of column bases under various moments and pretightening forces based on the FEM model of rigid column base,and analyzes the contribution of pretightening force on the shear resistance of column base.According to the results,the shear lugs must install in column base if μF less than V. |
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| Keywords: | portal frame light-weight steel structure column base foundation anchor |
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