LIGHTENED MULTIVOID PANEL OF PRIFABRICATED-MONOLITHIC FLOOR Russian patent published in 2003 - IPC

FIELD: construction of industrial, civilian and agricultural buildings and structures. SUBSTANCE: technical result of invention consists in provision for joint deformation of panels and supporting cross-bars of prefabricated-monolithic disks of floors under various operational loads on floor deformed in mix of building frame. Multivoid panel includes upper and lower flanges, side walls, intermediate ribs with formation of longitudinal through cavities which vary in configuration and dimensions along length of panel. Butts of panels come in the form of continuous shaped spline formed by polygonal facing of lower flange of panel over height of this flange over length equal to 1/3-1/2 width of panel. Cavities carry limiters of spline dimensions to depth not exceeding height of largest cavity. Panel has free lengths of lower working reinforcement, reinforcement of core of ribs and netting of upper flange on side of butts of panel to length equal to three lengths of free length of lower flange of panel as minimum. Panel has building rise with maximum f in center of span assumed to be not less than 1/300 of panel span. EFFECT: joint deformation f panels and supporting cross-bars. 2 cl, 7 dwg