STRUCTURE OF RESIN FORMWORK TO BE DRIVEN-IN FOR HOLLOW SLAB CONSTRUCTION WORK

摘要

PURPOSE:To improve sound proofness of a resin formwork by a method in which through holes are formed in the thickwise direction in given places of a resin formwork to be set on a semi-PC plate and also to be buried in in-situ concrete to integrate concrete with semi-PC plates there. CONSTITUTION:Semi-PC plates 14 of omnia plates, etc., are set between walls or beams and resin formworks 10 having recessions 12 are placed on the plates 14 at a given interval sequentially. The formworks 10 are buried by placing concrete 15 in site. In this case, through-holes 13... are formed penetrating through the thickness direction of the plate, and in that point, the semi-PC plates 14 and in-situ concrete 15 are integrated vertically. Occurrence of resonance in the hollows of the formworks 10 can thus be reduced as much as possible.