形鋼溶接構造物の耐震解析におけるビーム要素の適用性

抄録

Beam elements are generally used for response analysis of structures using shaped steel. However, the beam elements cannot accurately simulate the shape of the welded joints, and the length of the shaped steels is shortened because it is modeled to be joined at the centroid. Therefore, there is a concern that the natural frequency may differ from that of actual structures. So that, we compared the vibration characteristics of both the case of using the beam element and the case of using the solid element that simulated the actual weld structure as much as possible by FEM analysis. Although the vibration characteristics of both are almost the same, the beam element is slightly lower, confirming that it is appropriate to apply the beam element to the determination of the rigid structure.