COLD BRIDGE PREVENTING STRUCTURE OF FIRST-STORY FLOOR CONCRETE PART IN EXTERNAL HEAT INSULATED STEEL STRUCTURE

摘要

PROBLEM TO BE SOLVED: To prevent cold-bridge action which is transmitted from the surface of foundation concrete into a building constructed on the foundation concrete. ;SOLUTION: A heat insulating plate 2 is placed to abut to the overall periphery of the outside surface of foundation concrete 1, and the upper surface S₁ of an outside part formed by the upper end face of the heat insulating plate 2 and by the upper surface of the concrete serves as a part for placing a composite panel W and is made lower down to an inside part than a concrete floor face S₀ by a gap G from the inner surface of the composite panel W installed. Equal angle steel 3 is secured to the outer end of the foundation concrete 1, with one side of the steel 3 being coplanar with the upper surface S₁ of the outside part, and a support bolt 16 at the lower end of the composite panel W is supported by the upper surface of the angle steel, and an air-impermeable heat insulating material 20 is packed into the gap E between the upper surface S₁ of the outside part and the lower surface S₂ of the panel W. Therefore, cold-bridge action into the building is prevented from the outer peripheral surface of the foundation concrete 1 as well as from the outside boundary between the foundation concrete 1 and a heat-insulating exterior wall material.;COPYRIGHT: (C)1999,JPO