Structure for strengthening of building column structures

Abstract

An earthquake-resistant strengthening structure for building column structures, includes: a plurality of strengthening plates which are made of fiber sheet, are coupled by a concavo-convex structure in a vertical direction and are coupled by a sliding coupler in a horizontal direction; and mortar which strengthens a coupling between the strengthening plates and adheres the strengthening plates to an earthquake-resistant object. The earthquake-resistant strengthening structure is light, can be easily coupled or assembled, and provides a large binding force and tensile force by structural engagement between pieces of the strengthening plates and fusion of bonding materials. In addition, since the strengthening plates are made of glass fiber or carbon fiber, it is possible to provide an optimal earthquake-resistant strengthening structure having high durability, flexibility and strength with no corrosion.

1 . An earthquake-resistant strengthening structure for building column structures, comprising:
 a plurality of strengthening plates which are made of fiber sheet, are coupled by a concavo-convex structure in a vertical direction and are coupled by a sliding coupler in a horizontal direction; and   mortar which strengthens a coupling between the strengthening plates and adheres the strengthening plates to an earthquake-resistant object.   
     
     
         2 . The earthquake-resistant strengthening structure according to  claim 1 , wherein the fiber sheet is a multi-layered carbon fiber or glass fiber sheet. 
     
     
         3 . The earthquake-resistant strengthening structure according to  claim 2 , wherein the fiber sheet includes at least one porous fiber sheet between upper and lower sheet layers. 
     
     
         4 . The earthquake-resistant strengthening structure according to  claim 2 , wherein the fiber sheet includes at least one porous aluminum or stainless steel layer between upper and lower sheet layers. 
     
     
         5 . The earthquake-resistant strengthening structure according to  claim 1 , wherein the sliding coupler is configured to be vertically slid and horizontally coupled. 
     
     
         6 . The earthquake-resistant strengthening structure according to  claim 5 , wherein a coupling structure of the sliding coupler includes projections whose end portions are widened and grooves whose end portions are narrowed, the projections being vertically slidably coupled to the grooves.