ASEISMATIC REINFORCING STRUCTURE AND ASEISMATIC REINFORCING METHOD FOR EXISTING PILE

PROBLEM TO BE SOLVED: To reinforce an existing structure against earthquake satisfactorily by reinforcing an existing pile in a foundation structure. SOLUTION: This aseismatic reinforcing structure 1 of the steel pipe pile 2 supporting the existing structure 3 is constituted in such a way that pile head parts of a group 2A of outer peripheral piles arranged along the outer periphery when viewed in a plane in an arrangement region of the steel pipe pile 2 are exposed, one side of a buttress reinforcing member 6 forming a substantially triangular shape when viewed on a side is joined with the steel pipe piles 2 of the group 2A of outer peripheral piles, and the other side of the buttress reinforcing member 6 is joined with a connection beam 5 for connecting the pile head parts of the steel pipe piles 2 mutually. Consequently, the strength of joining parts is increased, rigidity of the steel pipe piles 2 of the group 2A of outer peripheral piles is increased, and horizontal yield strength of the steel pipe piles 2 is improved. COPYRIGHT: (C)2008,JPO&INPIT