Isolating device, method of replacing isolating structure part and method of controlling load of isolating structure

Abstract

Provided are an isolating device, a method of replacing an isolating structure part, and a method of controlling a load of the isolating structure part. The isolating device disposed between an upper structure and a lower structure includes an isolating structure part for performing an isolating function, and a height-adjustable part disposed on at least one of positions between the isolating structure part and the upper structure and between the isolating structure part and the lower structure, the height-adjustable part being adjusted in height by supplying or discharging fluid therein or therefrom.

1 . An isolating device disposed between an upper structure and a lower structure, the isolating device comprising:
 an isolating structure part for performing an isolating function; and   a height-adjustable part disposed on at least one of positions between the isolating structure part and the upper structure and between the isolating structure part and the lower structure, the height-adjustable part being adjusted in height by supplying or discharging fluid therein or therefrom.   
     
     
         2 . The isolating device of  claim 1 , wherein the height-adjustable part comprises:
 a deformable case providing a fluid space in which fluid is supplied; and   a connector communicating with the fluid space and connected to an external fluid supply unit, the connector being exposed to the outside.   
     
     
         3 . The isolating device of  claim 1 , further comprising a horizontal deformation prevention part surrounding at least one portion of a side surface of the height-adjustable part to prevent the height-adjustable part from being deformed in a horizontal direction. 
     
     
         4 . The isolating device of  claim 1 , wherein the height-adjustable part is disposed between the lower structure and the isolating structure part, and
 the isolating structure part is changed in load by supplying and discharging the fluid into and from the height-adjustable part.   
     
     
         5 . The isolating device of  claim 1 , further comprising an pressure gauge connected to the height-adjustable part to measure a pressure of the fluid within height-adjustable part. 
     
     
         6 . The isolating device of  claim 1 , further comprising a protection cover detachably connected to the upper structure and the lower structure,
 wherein the protection cover is spaced apart from the isolating structure part to surround the isolating structure part.   
     
     
         7 . The isolating device of  claim 6 , wherein the protection cover is separated from at least one of the upper structure and the lower structure when earthquake greater than design criteria occurs. 
     
     
         8 . The isolating device of  claim 1 , wherein the isolating structure part comprises:
 a lead core;   a stacked rubber bearing surrounding the lead core;   a protection plate on upper and lower portions of the lead core and stacked robber bearing; and   a cap coupled to the protection plate,   wherein the cap is separated from the protection plate to define a passage through which the lead core is withdrawn.   
     
     
         9 . A method of replacing an isolating structure part that performs an insulating function in an isolating device disposed between an upper structure and a lower structure, wherein the isolating device further comprises a height-adjustable part disposed on at least one of positions between the isolating structure part and the upper structure and between the isolating structure part and the lower structure, the height-adjustable part being adjusted in height by supplying or discharging fluid therein or therefrom, the method comprising:
 discharging the fluid from the height-adjustable part to decrease a height of the height-adjustable part and remove a load of the isolating structure part;   removing the isolating structure part in the state where the height-adjustable part decreases in height to insert a new isolating structure part; and   injecting the fluid into the height-adjustable part to increase the height of the height-adjustable part to apply a load to the new isolating structure part.   
     
     
         10 . The method of  claim 9 , wherein the isolating structure part comprises:
 a lead core;   a stacked rubber bearing surrounding the lead core;   a protection plate on upper and lower portions of the lead core and the stacked robber bearing; and   a cap coupled to the protection plate,   wherein the cap is separated from the protection plate to define a passage through which the lead core is withdrawn, and   the new isolating structure part is provided by inserting a new lead core into the stacked rubber bearing.   
     
     
         11 . A method of controlling a load of an isolating structure part that performs an insulating function in an isolating device disposed between an upper structure and a lower structure, wherein the isolating device further comprises a height-adjustable part disposed on at least one of positions between the isolating structure part and the upper structure and between the isolating structure part and the lower structure, the height-adjustable part being adjusted in height by injecting or discharging fluid therein or therefrom, the method comprising:
 measuring a pressure of the fluid within the height-adjustable part; and   supplying or discharging the fluid into or from the height-adjustable part on the basis of the measured pressure.