| 摘要 |
PROBLEM TO BE SOLVED: To provide a column-beam joint structure capable of reducing reduction in fire-resistant performance, while improving workability, in the present invention.SOLUTION: A column-beam joint structure 10 comprises a column 12 and a beam 40. A gusset plate 26B is provided on a side surface of the column 12. The beam 40 comprises a ligneous center part 42, a burning stop layer 46 and a burning margin layer 48 for fire-resistively covering the ligneous center part 42. This beam 40 is formed with a slit 54 extending to the ligneous center part 42 by penetrating through the burning stop layer 46 and the burning margin layer 48 from an under surface 40L of a beam end part 40A. The gusset plate 26B of the column 12 is inserted into this slit 54. A mortar plug 62 for forming a part of the burning stop layer 46 and a wooden plug 64 for forming a part of the burning margin layer 48, are also inserted into the slit 54 from the under surface 40L side of the beam end part 40A. |
