TRAPEZOIDAL COLUMN COLLAPSE PREVENTION BASE DEVICE FOR WOODEN FRAMEWORK AND CONSTRUCTION METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a trapezoidal column collapse prevention base device and a construction method thereof for preventing the collapse of a first floor column, in order to solve the problem that all metallic reinforcing joints of a wooden framework have a destiny to rotate due to the large horizontal seismic force, etc., there is no technique to prevent a rotation, especially the metallic reinforcing joints between a column capital of a first floor column and a girt tend to excessive deformation in position, leading to the collapse of the first floor column.SOLUTION: A lower side member 6, an upper side member 7, and a hypotenuse member 9 of the scantling lumber are joined to form a trapezoidal base table A, structural plywood is stuck as a reinforcing plate 10 on both side faces of the trapezoidal base table A, a height adjusting plate tool 11 is fixed on the upper side member 7 of the trapezoidal base table A while the upper surface thereof is brought closer to the lower surface of the girt, the slope of a deformation adjuster 12 is fixed to the inclined plane of the hypotenuse member 9 along a shear deformation angle hypotenuse line of a first floor columns 4 so that a trapezoidal column collapse prevention base device B can be formed, and the trapezoidal column collapse prevention base device B is inserted into all spaces 5 between the first floor columns 4 so as to be isolated from a girth 2, an adjacent column 4 and a large wall bearing wall 3 independently of each other and screwed them to a base 1.SELECTED DRAWING: Figure 3