REINFORCEMENT OF SANDWICH LOAD CARRYNG PANEL

摘要

Described invention shows reinforcement of sandwich load carrying panel or construction panel by replacing visible sub-frame with a frame built into the sandwich load carrying panel. Typical weakening is cutout in said panel for building in of windows, doors, air ventilation needs, or general penetrations. The system shown in this application has significantly increased load carrying capability deteriorated due to cutout of part of sandwich load carrying structure. The sandwich panel is in general comprised of two thin load carrying covering layers and soft shear carrying core. To increase load carrying capacity of weakened sandwich load carrying panel 1 there are reinforcement 2 glued on both sides on load carrying cover layers 3 using glue 6 (figure 3), said reinforcements 2 interconnected with interfaces capable of carrying shear, preferably insulation interfaces 5 or bridges. Part of load is transferred onto glued reinforcements which would otherwise be carried by cutout part of the sandwich load carrying panel 1. Each of reinforcements 2 forms axially and bending stress resistant frame which is formed according to shape of penetration. Each of reinforcements 2 is glued along the edges of cutout onto respective load carrying cover layer 3 of sandwich load carrying panel 1. With gluing the continuous transfer of load from thin load carrying cover layer 3 onto reinforcement 2 is achieved.