PERMANENT FORMS Russian patent published in 1996 - IPC

FIELD: construction; applicable in erection of precast-cast-in-place constructions of buildings and structures. SUBSTANCE: vertical protrusions 6 on the internal surface of the forms are located at distance of 1/4 of the shield length from its edge to the axis of protrusion, and width of its protrusion is smaller than the distance between the axes of adjacent protrusions. Each protrusion has recess with horizontal shelves in which ends of ties are anchored. Forms is made with corner shield in form of flat member coinciding with shape of the half of main shelf. Formed from end of flat member is vertical projection with inclined external face. Horizontal shelves of protrusions have depressions and holes on the side of shield deck for accommodation of anchored tie ends. EFFECT: higher efficiency. 4 cl, 8 dwg