| 考虑轴压比影响时框架稳定性的刚重比控制方法 |
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| 引用本文： | 张明,沈蒲生,孟焕陵,刘杨.考虑轴压比影响时框架稳定性的刚重比控制方法[J].湖南农业大学学报(自然科学版),2007,34(12). |
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| 作者姓名： | 张明 沈蒲生 孟焕陵 刘杨 |
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| 作者单位： | 湖南大学土木工程学院 湖南长沙410082 |
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| 基金项目： | 国家自然科学基金资助项目(50378035) |
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| 摘 要： | 改变框架柱的轴压比,对10根钢筋混凝土柱与5根钢柱进行压弯试验,拟合了轴压比对框架柱抗侧刚度的影响公式.用等效水平力方法推导了结构临界重力荷载,提出了基于结构刚重比控制的框架重力二阶效应的稳定计算方法,给出了考虑轴压比影响时框架结构稳定性的刚重比控制方法.结果表明:考虑轴压比影响,框架柱抗侧刚度提高,使得计算的刚重比更容易满足规范关于框架结构稳定性对刚重比的要求,考虑轴压比对框架柱抗侧刚度的影响,符合工程实际,为现行规范对高层框架侧移计算的完善提供参考.
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| 关 键 词： | 稳定分析 轴压比 刚重比 刚度修正系数 二阶效应 |
Control Method of the Stability of Frame Structures by Its Ratio of Rigidity-to-Gravity Considering the Influence of the Ratio of Axial Compressive Force to the Axial Compressive Ultimate Capacity of Section |
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| ZHANG Ming,SHEN Pu-sheng,MENG Huan-ling,LIU Yang.Control Method of the Stability of Frame Structures by Its Ratio of Rigidity-to-Gravity Considering the Influence of the Ratio of Axial Compressive Force to the Axial Compressive Ultimate Capacity of Section[J].Journal of Hunan Agricultural University,2007,34(12). |
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| Authors: | ZHANG Ming SHEN Pu-sheng MENG Huan-ling LIU Yang |
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| Abstract: | Experiments in compression and bending were done for 10 concrete columns and 5 steel columns with various ratios of axial compressive force to the axial compressive ultimate capacity of the section,and the influence formulae of the ratio of axial compress |
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| Keywords: | stability analysis ratio of axial compressive force to axial compressive ultimate capacity of section ratio of rigidity-to-gravity revised factor of the line rigidity second order effect |
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