Patent ID: 6250030
Filing Date: 2001-06-26
Classification: E01D,E04B,E04C

Abstract:
A prestressed concrete structure comprising:an elongated concrete molded article having a pair of side surfaces opposed to each other;a plurality of tensile members laterally extending through the concrete molded article to be secured at each end to the side surfaces of said concrete molded article in a tensioned state, and imparting a compressive load to said concrete molded article;a pair of side guards arranged along both side surfaces of said concrete molded article so as to cover the ends of said tensile members; andreinforcing members arranged on side surfaces of said pair of side guards in order to prevent broken tensile members from protruding beyond the side surfaces of said pair of side guards by breaking through said side guards when said tensile members in the tensioned state are broken; whereinsaid reinforcing members stretch little in the longitudinal direction of the side surfaces of the side guards 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 easily spreads out in the longitudinal direction of the side surfaces of the side guards but spreads out little in the transverse direction on the side surfaces of the said side guards.