PRESTRESSED CONCRETE STRUCTURE, REINFORCING MEMBER USED FOR PRESTRESSED CONCRETE MOLDINGS, AND SHEET MATERIAL FOR REINFORCING MEMBERS

摘要

A prestressed concrete structure comprising a long concrete molded article having a pair of side surfaces opposed to each other, a plurality of tensile members penetrating and stretching inside said concrete molded article from one of said pair of side surfaces toward the other side surface in a transverse direction, secured at their both ends to the side surfaces of said concrete molded article in a tensioned state and imparting a compressive load to said concrete molded article, side guards arranged along both side surfaces of said concrete molded article so as to cover the ends of said tensile members, and reinforcing members arranged on the side surfaces of said side guards in order to prevent the broken tensile members from protruding beyond the side surfaces thereof breaking through said side guards when said tensile members in the tensioned state are broken. The reinforcing members stretch little in the longitudinal direction but easily stretch in the transverse direction on the side surfaces of said side guards, and when pushed from the inside by the ends of the tensile members that protrude as a result of breakage, the peeling of said reinforcing members spreads out in the longitudinal direction of the concrete molded article on the side surfaces of the side guards but spreads out little in the transverse direction.