| 摘要 |
PROBLEM TO BE SOLVED: To provide a junction structure of a long member, capable of securing joining strength of a junction even while maintaining a smooth state of a surface supporting an external wall panel when connecting the long member in a longitudinal direction.SOLUTION: According to a junction structure 200 of main horizontal members 22A and 22B, since a connection plate 60 is provided on a rising part back surface 32a and welding is executed between the connection plate 60 and the rising part back surface 32a, a rising part front surface 32b (which is a surface that an external wall panel 6 is to be in contact with) of the main horizontal members 22A and 22B can maintain a smooth state even after the main horizontal members 22A and 22B are joined. Also, lateral outer edge parts 60a and 60b in parallel with lateral opening edge parts 62a, 62b, 63a and 63b are provided, and lateral outer edge welding parts 66A and 66B are provided over the lateral outer edge part 60a which is the one far from a bottom plate part 36 and the rising part back surface 32a. Thus, workability of welding work can be improved. |
