METHOD OF MANUFACTURING LARGE-SIZE RIBBED PRESTRESSED REINFORCED CONCRETE STRUCTURES Russian patent published in 2000 - IPC

FIELD: construction industry; applicable in manufacture of large-size ribbed structures at sites of erection of industrial, storage, public, sports and agricultural buildings. SUBSTANCE: method includes formation of recesses in preliminarily erected in structure of reinforced concrete plate. Depth of recesses is not less than width of structure rib. Hinged along recesses are side and shaping members of forms. Prestressed reinforcement is located in recesses and tensioned on plate ends. Then structure is concreted, its tension is released, forms removed and structure is transported to place of its mounting. Further on, next articles are made in installed frames. After manufacture of the required quantity of structures, side and shaping members of forms are dismantled and recesses are filled with concrete. EFFECT: reduced cost of manufacture and mounting of large-size structures due to use force forms in the form of reinforced concrete plates of structures. 2 dwg