Large Displacement Analysis of Elastic Pyramidal Trusses

3rd World Multidisciplinary Civil Engineering, Architecture, Urban Planning Symposium

土木建筑工程;文学

Kala, Zdenek^1

Brno University of Technology, Faculty of Civil Engineering, Veveri 331/95, Brno

602 00, Czech Republic^1

关键词: Beam finite elements;    Geometric non-linear;    Initial imperfection;    Large displacement analysis;    Load-deflection curve;    Loss of stability;    Random imperfections;    Random variability;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/471/10/102054/pdf
DOI  :  10.1088/1757-899X/471/10/102054

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The aim of the present study is the analysis of the loss of stability of von Mises planar trusses with initial imperfections. The loading process is controlled by the size of the vertical static load in the top joint. Load-deflection curves are determined using the elastic geometric nonlinear solution based on beam finite elements. The influence of the random variability of initial imperfections on the load-deflection curves is the subject of research. The results showed the influence of asymmetric random imperfections on the load-deflection curves.