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拼接钢柱整体稳定性能分析

Overall stability behaviour analysis of spliced steel column
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摘要 为研究拼接钢柱构件的整体稳定性能,对两端都有弹簧约束的轴心受压拼接钢柱构件进行了静力稳定分析,得到了拼接钢柱构件的屈曲方程。分析了不同杆端约束拼接钢柱构件的整体稳定性能,得到了相应的构件计算长度系数,并通过参数分析,得到拼接位置和拼接刚度对拼接钢柱整体稳定性能的影响规律。通过算例分析,验证了分析方法的适用性和可靠性。研究结果表明,拼接会降低柱子的承载力,而且其影响不可以忽略。 To investigate the overall stability behaviour of spliced steel columns,the static stability analysis on axially compressed spliced steel columns with spring constraints at both ends was carried out,and the buckling equation of spliced steel columns was obtained.The overall stability behaviour of spliced steel columns with different restrain conditions at the member ends was analyzed.The corresponding effective length coefficient of each component was obtained,and through the parameter analysis,the influences of the splice position and splice stiffness on overall stability of spliced steel columns were studied.Through the example analysis,the applicability and reliability of analysis method were verified.The research results show that splices can reduce the bearing capacity of the columns,and the influence can not be ignored.
作者 朱冬梅 赵金城 Zhu Dongmei;Zhao Jincheng(School of Naval Architecture,Ocean&Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处 《建筑结构》 CSCD 北大核心 2019年第23期102-106,共5页 Building Structure
基金 国家自然科学基金项目(51478263)
关键词 拼接钢柱 静力平衡法 屈曲 计算长度系数 spliced steel column static equilibrium method buckling effective length coefficient
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