بررسي رفتار كمانشي ستون صليبي لانه زنبوري به روش اجزاي محدود

Buckling Behavior of Cross Castellated Columns by FEM

Researchers attended selection of useful sections for compressive load in examining of bearing capacity of columns. Structural engineers and architectures investigate light column sections in steel structures to get more economy. In this paper is studied cross castellated columns, in which is included accessibility of higher gyration radius with lesser material consumption and higher strength per weight of material. Column buckling capacity under axial load is dependant to the relation of slenderness (kl/r). On the other hand post buckling behavior of compression members is important to predict bearing capacity and total structural behavior. Therefore, it is necessary to specify their behavior until critical stage, including post buckling response, which is investigated here with material and geometric nonlinear analysis. In this paper, buckling behavior and ultimate capacity of built up castellated compound columns are investigated using ANSYS software. A brief of results is reported on for a number of CPE sections in different boundary conditions. Also is presented slenderness-load curve by using of Jandel software, which is a useful tool for investigation of ultimate capacity of the columns.