Aseismatic reinforcing structure of double flooring and aseismatic reinforcing method of double flooring

Abstract

An aseismatic reinforcing structure of a double flooring and an aseismatic reinforcing method of the double flooring, in which by providing iron pillars for the double flooring in which a space is formed between a floor slab of a building and a floor portion supported to leg bodies arranged on the floor slab, a natural frequency of the floor portion is raised, and an amplification of a shake of a free-access panel constructing a floor surface that is caused by a resonance is prevented or suppressed, thereby improving aseismatic performance.

1 . An aseismatic reinforcing structure of a double flooring, comprising:
 leg bodies arranged on a floor slab of a building;   a floor portion which is supported to said leg bodies to form a space between said floor portion and said floor slab; and   pillars which are provided for said floor slab and fixed to an aseismatic reinforcing region in said floor portion.   
     
     
         2 . The structure according to  claim 1 , wherein said pillars are joined to said floor slab and said floor portion by an adhesive agent. 
     
     
         3 . The structure according to  claim 2 , wherein said floor portion has beams supported to said leg bodies and a floor panel which is fixed onto said beams to construct a floor surface, and
 said pillars are fixed to said beams.   
     
     
         4 . The structure according to  claim 1 , wherein said space is a space under a floor of a clean room in which air is circulated. 
     
     
         5 . The structure according to  claim 3 , wherein said beams are provided in a lattice form over said floor slab. 
     
     
         6 . The structure according to  claim 1 , wherein said aseismatic reinforcing region is a region where a vertical diffusion furnace apparatus is disposed in said floor portion. 
     
     
         7 . An aseismatic reinforcing method of a double flooring in which a space is formed between a floor slab of a building and a floor portion which is supported to leg bodies arranged on said floor slab, comprising the steps of:
 providing pillars for said floor slab; and   fixing said pillars to an aseismatic reinforcing region in said floor portion.   
     
     
         8 . The method according to  claim 7 , wherein said pillars are joined to said floor slab and said floor portion by an adhesive agent. 
     
     
         9 . The method according to  claim 8 , wherein said floor portion has beams supported to said leg bodies and a floor panel which is fixed onto said beams and constructs a floor surface, and
 said pillars are fixed to said beams.   
     
     
         10 . The method according to  claim 7 , wherein said space is a space under a floor of a clean room in which air is circulated. 
     
     
         11 . The method according to  claim 9 , wherein said beams are provided in a lattice form over said floor slab. 
     
     
         12 . The method according to  claim 7 , wherein said aseismatic reinforcing region is a region where a vertical diffusion furnace apparatus is disposed in said floor portion.