Effects of lateral links on the performance of steel cross-shaped columns under axial load
In recent years, the construction of high-rise structures in the world has increased significantly. One of the important challenges of structural engineering is the use of different materials, including steel, to build structures based on these characteristics. Among the available steel sections, cross-shaped sections have been investigated and analyzed in this research due to biaxial symmetry and the possibility of proper connection. Due to the improvement in the process of implementation, design and construction of cross-bearing members inside the country, the present laboratory and numerical studies and investigations have been carried out with the aim of showing the behavior and characteristics of such columns. In order to investigate and draw better conclusions about the use of these types of sections, in this research, a parametric study was first attempted on the behavior of such columns. Then, how the dimensions and geometrical characteristics and estimation of the bearing capacity of the column have been analyzed. After that, the numerical model of the sample was created in Abaqus finite element software, and a laboratory sample was made. Finally, the obtained results were presented in the form of load-displacement curves and force-strain ratio. Therefore, the results of the research show that the installation of adhesive inks in these samples can improve the performance of these columns in terms of the load capacity, increase in stiffness, and the way of yielding and buckling in these members.
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