黄丽华, 张耀烨. 小变形桁架结构稳定性的计算方法研究[J]. 力学与实践, 2013, 35(5): 54-58,62. DOI: 10.6052/1000-0879-12-470
引用本文: 黄丽华, 张耀烨. 小变形桁架结构稳定性的计算方法研究[J]. 力学与实践, 2013, 35(5): 54-58,62. DOI: 10.6052/1000-0879-12-470
HUANG Lihua, ZHANG Yaoye. THE COMPUTATIONAL METHOD FOR STABILITY OF TRUSSES WITH SMALL DEFORMATION[J]. MECHANICS IN ENGINEERING, 2013, 35(5): 54-58,62. DOI: 10.6052/1000-0879-12-470
Citation: HUANG Lihua, ZHANG Yaoye. THE COMPUTATIONAL METHOD FOR STABILITY OF TRUSSES WITH SMALL DEFORMATION[J]. MECHANICS IN ENGINEERING, 2013, 35(5): 54-58,62. DOI: 10.6052/1000-0879-12-470

小变形桁架结构稳定性的计算方法研究

THE COMPUTATIONAL METHOD FOR STABILITY OF TRUSSES WITH SMALL DEFORMATION

  • 摘要: 基于桁架结构稳定性计算的经典理论,分析了利用特征值理论开展桁架结构屈曲分析的计算方法,以及利用欧拉临界载荷屈曲理论,采取杆件撤除的静力求解确定桁架结构稳定临界载荷的计算方法. 通过理论研究和相关算例分析,论证了利用特征值理论和临界载荷屈曲理论相结合的方法,判断小变形桁架结构的失稳模态,求解桁架结构稳定临界载荷的确定性.

     

    Abstract: Based on the classical theories of stability of trusses, a computational method of buckling analysis of trusses is developed by using the eigenvalue theory and the critical buckling load of trusses is obtained by using both Euler's critical load theory and the static solution of removing buckling members. From the analysis of theories and corresponding examples, the computational method for identifying the buckling modes and the critical loads of trusses through the combination of the buckling eigenvalue theory and the Euler's critical load theory is demonstrated.

     

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