| 有侧移半刚性连接组合框架柱的有效长度系数 | |
| 王静峰 ; 李国强 ; WANG Jing-feng ; LI Guo-qiang | |
| 2010-06-07 ; 2010-06-07 | |
| 关键词 | 有效长度系数 半刚性连接 有侧移 组合框架 弯矩-转角关系 楼板的组合效应 effective length factor semi-rigid connection sway composite frame moment-rotation characteristic composite action of slab TU398.9 |
| 其他题名 | EFFECTIVE LENGTH FACTOR OF COLUMNS IN SWAY AND SEMI-RIGID COMPOSITE FRAMES |
| 中文摘要 | 利用三层柱的框架模型,考虑了节点的非线性弯矩-转角关系、楼板的组合效应、梁端和柱远端不同边界情况等因素对柱的有效长度系数的影响,推导了有侧移半刚性连接组合框架柱的有效长度系数方程式,并分析了GB50017-2003规范附录D求解的精确性,最后用两个实例:门式组合框架和三层两跨组合框架,研究了荷载大小和非线性弯矩-转角关系对柱有效长度系数的影响。研究表明,对于有侧移半刚性连接组合框架柱,当柱远端处于不同边界条件时,用GB50017-2003规范附录D求得的有效长度系数设计柱偏于安全;节点初始刚度对有效长度系数影响较明显。研究结果可供工程设计参考。; Using the three-column subassemblage model, the governing equations for determining the effective length factor (μ-factor) of columns in sway composite frames with semi-rigid connections are derived, which consider the effects of the nonlinear moment-rotation characteristics of beam-to-column connections and composite action of slab. The effects of various beam end conditions and column far end conditions on μ-factor are also considered. Furthermore, accuracies of GB50017-2003 specified appendix D solution are also assessed. Finally, the influences of load value and the nonlinear moment-rotation characteristics on μ-factor are numerically studied by using two examples of portal composite frame and three-story-two-span composite frame. It was found that using GB50017 specified appendix D, the μ-factors in the subassemblage models with various boundaries provide a conservative design of columns, and the μ-factor is significantly affected by the initial connection stiffness. The proposed formulas can be used for the structural design in a practical engineering.; 国家杰出青年科学基金资助项目(50225825) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/46758]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 王静峰,李国强,WANG Jing-feng,等. 有侧移半刚性连接组合框架柱的有效长度系数[J],2010, 2010. |
| APA | 王静峰,李国强,WANG Jing-feng,&LI Guo-qiang.(2010).有侧移半刚性连接组合框架柱的有效长度系数.. |
| MLA | 王静峰,et al."有侧移半刚性连接组合框架柱的有效长度系数".(2010). |
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