Seismic reinforcing structure to distribution panel mounted on a raised access floor without transfer or power interruption

Abstract

A seismic reinforcing structure is disclosed, which is for a power supplying distribution panel or panelboard mounted on a raised access floor system in order to reinforce a seismic capacity. More particularly, the seismic reinforcing structure can be mounted even to an existing operating distribution panel or panelboard having a seismic capacity without requiring transfer or power interruption of the distribution panel or panelboard in operation.

1 . A seismic reinforcing structure to a distribution panel mounted on a raised access floor without transfer or power interruption of the distribution panel to secure a stable seismic capacity, by being structured in a manner that an removable floor panel is mounted at an interval from a flooring slab through the medium of fixing members of vertical supporting pedestals and the distribution panel is seated on a mounting bracket fixed to the removable floor panel,
 Wherein the removable floor panel and the mounting bracket are fastened to each other through an L-shape bracket and horizontal and vertical bolts,   a square pipe is fixed to the vertical bolt penetrating the L-shape bracket and the removable floor panel, at an interval from the removable floor panel, and   a turn buckle mounted to an anchor bracket of the flooring slab is connected to a shackle of a fixing bolt fastened to the L-shape steel.   
   
   
       2 . The seismic reinforcing structure according to  claim 1 , wherein a spacing spring is interposed between the removable floor panel and the square pipe and fastened to the vertical bolt so that impacts exerted to connecting members can be relieved when load paths are changed. 
   
   
       3 . The seismic reinforcing structure according to  claim 1 , wherein the square pipe and the L-shape steel are arranged alternately with respect to a horizontal direction, thereby achieving a fall prevention structure. 
   
   
       4 . The seismic reinforcing structure according to  claim 1 , wherein the vertical bolt penetrating the removable floor panel and the square pipe is connected with a rotary link of a hinge connection board that is attached to the mounting bracket by welding or adhesive. 
   
   
       5 . The seismic reinforcing structure according to  claim 4 , wherein a spacing spring is interposed between a head of the vertical bolt and the removable floor panel. 
   
   
       6 . The seismic reinforcing structure according to  claim 1 , wherein the vertical bolt of the removable floor panel is mounted with a bending bracket connected to a stopper supporter of a movable distribution panel.