| 摘要 |
PROBLEM TO BE SOLVED: To improve yield strength against an earthquake by uniformly dispersing the transmission performance of shearing forces of upper and lower floors.SOLUTION: A connection structure constructed of thin-sheet light-weighted shape steel between upper and lower floors includes: two or more connection bolts 71, 72 inserted through a horizontal part 16 provided in a hold-down hardware 54, with an upper end thereof being fixed; a connection member 8 having an upper flange 82 through which the two or more connection bolts 71, 72 are inserted and which fixes upper ends of the connection bolts, an intermediate web 81 extended downward from the upper flange 82 so as to at least separate insertion positions of the connection bolts 71, 72 in the upper flange 82, a lower flange 83 mounted to the lower end of the intermediate web 81; and a hold-down hardware 55 having two or more connection bolts 73, 74 inserted through the lower flange 83 via the intermediate web 81 in a state that insertion positions are away from each other and a horizontal part 26 through which the two or more connection bolts 73, 74 are inserted and which fixes lower ends of the connection bolts, and fixed to a vertical frame material made of thin-sheet light-weighted shape steel constituting a load-bearing wall of the lower floor. |
