EARTHQUAKE RESISTANT REINFORCING METHOD FOR BUILDING OF STEEL FRAME CONSTRUCTION

摘要

PROBLEM TO BE SOLVED: To realize useful earthquake resistant reinforcement sufficiently making the most use of strength of an existing building by being matched to the deformation-strength characteristic of a structural body for the existing building of steel frame construction to regulate rigidity, and stretching a brace setting input in a plane of structure by being matched to the strength of the plane of structure constituted of a column and a beam. ;SOLUTION: An upper girder and a reinforcing brace 1 constituted of oblique materials 3, 4 connected to both the ends are provided in a plane of structure 7 formed of the column 5 and the beam 6 of steel frame construction, and each oblique material 3, 4 is firmly connected in the neighborhood of a joint part by having a prescribed angle α for a lower beam 8. Brackets 10, 10' provided with both the ends of the upper girder 2 can move the reinforcing brace 1 and an upper beam 9 vertical of a building by being engaged with the attaching members 11, 11' of the upper beams and inserting a shear bolt 14 welded on the brackets 10, 10' in a vertically oblong loose hole 13 provided on the center part of the lower end of the attaching members 11, 11'. Setting of input for the reinforcing brace 1 is made possible by being matched to the strength of the plane of structure 7, and the strength of an existing building is utilized to combine the strength of the reinforcing brace so as to obtain a large strength.;COPYRIGHT: (C)1999,JPO