Stressed hollow concrete cylinders Patent #: 4044088
ApplicationNo. 06/177180 filed on 08/11/1980
US Classes:264/228, FORMING STRESSED CONCRETE ARTICLES376/296Prestressed
ExaminersPrimary: Pavelko, Thomas P.
Attorney, Agent or Firm
International ClassesE04H 7/00 (20060101)
E04H 7/26 (20060101)
G21C 13/093 (20060101)
G21C 13/08 (20060101)
AbstractA prestressed concrete pressure-containment vessel having one or more cavities within its external shell. The cavities, whether cylindrical or other shape, are totally contained by prestressing tendons, which apply forces to contain various pressures within the structure. By permitting and actually inducing controlled cracking of the vessel in the outer portions of the thick shell wall, one embodiment of a pressure-containment vessel relieves stresses and enhances resistance to very high internal pressures and to stresses due to high internal temperatures and steep temperature gradients.
Field of SearchFORMING STRESSED CONCRETE ARTICLES