SEISMIC RETROFIT FOR OPENING OF STRUCTURE USING VARIABLE STEEL FRAME AND METHOD OF CONSTRUCTING SAME

摘要

The present invention relates to a seismic retrofit in which a rectangular steel frame installed in an opening of a structure has a variable structure to be able to change the size thereof, and a preferred method of constructing the same. The seismic retrofit for an opening of a structure according to the present invention is a seismic retrofit for retrofitting an opening of a structure surrounded by vertical structures on both sides and upper and lower horizontal structures. The seismic retrofit according to the present invention comprises: corner frames made of an L-shaped rectangular steel pipe and installed to be fixed to the four corners of an opening of a structure; longitudinal frames installed to connect between the corner frames while adjusting an insertion length in a state in which both ends thereof are inserted into the rectangular steel pipes of the corner frames; and a filling material filled in the rectangular steel pipe of the corner frame to integrate the corner frame and the longitudinal frame and is characterized by varying according to the degree of insertion of the longitudinal frame. The method of constructing a seismic retrofit for an opening of a structure according to the present invention comprises: a first step of assembling a corner frame and a longitudinal frame into a rectangular frame to fit the size of an opening of a structure; a second step of installing and fixing the rectangular frame assembled in the first step to fit the opening of the structure; and a third step of filling a filling material in the corner frame.;COPYRIGHT KIPO 2014