| 两端铰接楔形压弯杆平面外稳定 |
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| 引用本文： | 严剑松,童根树. 两端铰接楔形压弯杆平面外稳定[J]. 钢结构, 2004, 19(2): 62-65 |
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| 作者姓名： | 严剑松 童根树 |
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| 作者单位： | 浙江大学,土木系,杭州,310027;浙江大学,土木系,杭州,310027 |
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| 摘 要： | 用有限元方法计算楔形压杆的平面外屈曲荷载 ,并按能量法推导出表达式 ,对系数进行修正 ,得到物理意义明确 ,精度较高的扭转、弯扭屈曲荷载表达式 ,该公式形式与等截面压弯杆屈曲荷载的计算公式类似。最后还给出梁柱P -M关系 ,以便于在工程中应用。
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| 关 键 词： | 变截面压杆 扭转屈曲 弯扭屈曲 |
| 修稿时间： | 2003-12-12 |
OUT-PLANE STABILITY OF TAPERED BEAM-COLUMNS WITH HINGED-HINGED END |
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| Yan Jiansong Tong Genshu. OUT-PLANE STABILITY OF TAPERED BEAM-COLUMNS WITH HINGED-HINGED END[J]. Steel Construction, 2004, 19(2): 62-65 |
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| Authors: | Yan Jiansong Tong Genshu |
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| Abstract: | The expression of torsional and flexural-torsional buckling loads is obtained through the out-plane buckling load of the tapered beam-columns by FEM and the modification of the coefficient by an expression derived from energy method,which is similar to that of calculating the buckling loads of the beam-columns with uniform sections.Finally P-M relation of the beam-columns is also given,and it is convenient to use in engineerings. |
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| Keywords: | tapered member torsional buckling flexural-torsional buckling |
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