| 摘要 |
PROBLEM TO BE SOLVED: To improve deformation capacity of a beam.SOLUTION: A column-beam joining structure is provided by welding an end surface of a flange of a beam constituted of H-shaped steel to a steel column, the flange comprises a constant width part of a predetermined width and a widening part provided between the constant width part and a beam end connection part, and having a width larger than the predetermined width, the widening part has a circular arc shape or a composite shape of the circular arc shape and a linear shape of increasing a width curvedly toward the side of the beam end connection part from the side of the constant width part, and when assuming the predetermined width as B, a beam height of the beam as H and a circular arc radius of the circular arc shape as R, in the beam of satisfying 0.2≤B/H≤0.5, R/B≥0.5 is satisfied. |
