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首页> 外文期刊>International Journal of Applied Mechanics and Engineering >ANALYSIS OF BRACE STIFFNESS INFLUENCE ON STABILITY OF THE TRUSS
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ANALYSIS OF BRACE STIFFNESS INFLUENCE ON STABILITY OF THE TRUSS

机译：支撑刚度对桁架稳定性的影响分析

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The paper is devoted to the numerical and experimental research of stability of a truss with side elastic supports at the top chord. The structure is a model of a real roof truss scaled by factor 1/4. The linear buckling analysis and non-linear static analysis were carried out. The buckling length factor for the compressed top chord was calculated and the limit load for the imperfect truss shell model with respect to brace stiffness was obtained. The relation between brace normal force and loading of the truss is presented. The threshold stiffness of braces necessary to obtain the maximum buckling load was found. The truss load bearing capacity obtained from numerical analysis was compared with Eurocode 3 requirements.
机译：本文致力于在弦杆顶部具有侧向弹性支撑的桁架的稳定性的数值和实验研究。该结构是真实屋顶桁架的模型，比例为1/4。进行了线性屈曲分析和非线性静力分析。计算了受压顶弦的屈曲长度因子，并获得了不完善的桁架壳模型相对于支撑刚度的极限载荷。给出了支撑法向力与桁架荷载之间的关系。找到了获得最大屈曲载荷所需的支撑的阈值刚度。通过数值分析获得的桁架承载能力与欧洲规范3要求进行了比较。

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