| 竖向荷载下纵向柱列交叉支撑刚度要求 |
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| 引用本文： | 赵金友,张耀春.竖向荷载下纵向柱列交叉支撑刚度要求[J].工业建筑,2011,41(2):78-82. |
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| 作者姓名： | 赵金友 张耀春 |
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| 作者单位： | 1. 东北林业大学土木工程学院,哈尔滨,150040
2. 哈尔滨工业大学土木工程学院,哈尔滨,150090 |
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| 基金项目： | 国家自然科学基金资助(51008055); 中央高校基本科研业务费专项资金资助(DL09BB09); 中国博士后科学基金(20100471124); 黑龙江省教育厅科学技术研究项目(11553037) |
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| 摘 要： | 从保证柱列纵向稳定性的角度,对竖向荷载作用下交叉支撑的刚度要求进行研究.介绍无初始几何缺陷的单、双层纵向柱列支撑体系的抗侧刚度要求;根据实际框架中的各种初始几何缺陷,考虑竖向荷载的P-△与P-δ二阶效应,利用有限元程序ANSYS对承受竖向荷载作用的单、双层纵向柱列支撑体系进行受力分析,据此确定用于设计的竖向荷载作用下单...
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| 关 键 词： | 纵向柱列支撑 竖向荷载 交叉支撑 刚度要求 |
STIFFNESS REQUIREMENTS OF DIAGONAL BRACINGS FOR LONGITUDINAL COLUMN-BRACING SYSTEM UNDER VERTICAL LOADS |
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| Zhao Jinyou,Zhang Yaochun.STIFFNESS REQUIREMENTS OF DIAGONAL BRACINGS FOR LONGITUDINAL COLUMN-BRACING SYSTEM UNDER VERTICAL LOADS[J].Industrial Construction,2011,41(2):78-82. |
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| Authors: | Zhao Jinyou Zhang Yaochun |
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| Affiliation: | Zhao Jinyou1 Zhang Yaochun2(1.College of Civil Engineering,Northeast Forestry University,Harbin 150040,China,2.School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China) |
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| Abstract: | The stiffness requirements of the diagonal bracings in order to maintain the stability of longitudinal columns under the only vertical loads have been investigated in this paper.The lateral stiffness requirements of one-story and two-story longitudinal column-bracing systems without the initial imperfections were introduced.One-story and two-story longitudinal column-bracing systems under the only vertical loads were analyzed using the ANSYS program,in which two order effects on P-Δ and P-δ were well considered according to the initial imperfections of the actual frames.According to the analysis results,the design formulas of stiffness requirements of the diagonal bracings for one-story and two-story longitudinal column-bracing systems were obtained,and a check method based on the vertical loading analysis was supplied for the diagonal bracings,which is usually designed by the longitudinal horizontal loads. |
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| Keywords: | longitudinal column-bracing system vertical loads diagonal bracings stiffness requirements |
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