STRESS DISPERSION CURVED PLATE FOR PREVENTING CRACKS AROUND AN OPENING INCLUDING STRAIGHT PORTIONS, CURVED PORTIONS, CONCRETE INFLOW HOLES, SUPPORTS, A REINFORCEMENT RIB, AND A FINISHING END

摘要

PURPOSE: A stress dispersion curved plate for preventing cracks around an opening is provided to prevent cracks formed in the edge of a square opening since stress focused on the edge is decentralized along the circumferential surface of a curved portion.;CONSTITUTION: A stress dispersion curved plate for preventing cracks around an opening comprises straight portions(11,11'), a curved portion(12), concrete inflow holes(13,13'), supports(14,14'), a reinforcing rib, and a finishing end(16). The curved portion is integrated with the straight portion. The concrete inflow holes are arranged on the entire surface of the stress dispersion curved plate in various sizes and shapes. The supports are projected on one side facing a square opening. The reinforcing rib is projected between the concrete inflow holes. The finishing end is formed into a waveform shape or a triangular shape.;COPYRIGHT KIPO 2011