| 开口薄壁截面悬臂压杆的稳定问题研究 |
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| 引用本文： | 陈玉骥,;罗旗帜,;周爱国. 开口薄壁截面悬臂压杆的稳定问题研究[J]. 钢结构, 2014, 0(7): 1-4 |
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| 作者姓名： | 陈玉骥, 罗旗帜, 周爱国 |
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| 作者单位： | [1]佛山科学技术学院土木工程与建筑系,广东佛山528000; [2]湖南大学土木工程学院,长沙410082; [3]佛山市路桥建设有限公司,广东佛山528041 |
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| 基金项目： | 国家自然科学基金资助项目（50978058）;全国优秀博士学位论文作者专项资金资助项目（200954）;广东省自然科学基金资助项目（S2011010005037）. |
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| 摘 要： | 根据能量泛函变分原理,推导开口薄壁杆件在杆端压力P和沿杆轴向均匀分布压力q共同作用下的控制方程,并采用伽辽金法求解,研究开口薄壁截面悬臂压杆的稳定问题,计算荷载P和ql不同比例情况下的临界荷载和P-ql临界荷载包络线。
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| 关 键 词： | 开口薄壁截面 压杆 临界荷载 包络线 |
RESEARCH ON THE STABILITY OF CANTILEVERED COMPRESSIVE BARS WITH THIN-WALLED OPEN SECTION |
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| Affiliation: | Chen Yuji Luo Qizhi Zhou Aiguo (1. Department of Civil Engineering and Architecture, Foshan Science and Technology University, Foshan 528000 2. School of Civil Engineering, Hunan University, Changsha 410082, China 3. Foshan Highway Bridge Construction Co. Ltd, Foshan 528041, China) |
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| Abstract: | The governing equation of compressive bars with thin-walled open section under the end pressure P and the uniform pressure q along the axis of the bar was derived according to energy functional variational principle,and a solution was obtained by Galerkin method. This paper presents the stability of cantilevered compressive bars with thin-walled open section,and the critical loads of P and ql with various scales and the envolope curve for P - ql critical load were calculated. |
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| Keywords: | thin-walled open section compressive bar critical load envolope curve |
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