Stress transmission device, and structure and method of constructing the same

A structure, comprising a foundation pile, an upper structural portion which is supported by said foundation pile, and, between said foundation pile and said upper structural portion, a stress transmission device for transmitting stress therebetween, comprising a pile head member which is set upon a pile head of said foundation pile, and a structure support member which is fixed to said upper structural portion and is arranged to face said pile head member;

• wherein:
• said pile head member and said structure support member mutually contact one another in the vertical direction via a first contacting surface which defines a portion of a first imaginary spherical surface;
• a tension member is fitted to said pile head member and said structure support member for holding them together in contact while pressing them together via said first contacting surfaces;
• one of said pile head member and said structure support member is provided with a spherical seat and a concave surface is formed upon the other, and said first contacting surface is constituted by mutually contacting together the outer surface of said spherical seat and said concave surface;
• the outer surface of said spherical seat is formed so as to define the same surface as said first imaginary spherical surface;
• a through hole is formed in said concave surface for passing through said tension member, and an aperture portion is formed in a position of said spherical seat which opposes said through hole;
• and
• along with said tension member being arranged so as to pass through said through hole and said aperture portion, both its ends are respectively engaged to said pile head member and said structure support member by engagement members.