抄録
It is important to evaluate the local buckling and post buckling strength at high temperature accurately. A part of authors have proposed a simple method to evaluate buckling strength of flange plate model at room temperature. In this paper, from the experimental and numerical results of cruciform section steel stub column at high temperatures, we will analyze a plate buckling behavior at high temperatures. Here, we examine the stub column test with the parameter width-thickness ration (b/t=8,10,12) and temperatures (room temperature, 400°C,500°C,600°C). Furthermore, we will verify the applicability our evaluate method of plate buckling behavior at high temperature.