earticle

영어

In this study the seismic evaluation applied to the school structure which had non seismic design to find out possible forecast positions when earthquakes take place. The findings are as follows. In order to improve a seismic-resistant ability it executes the seismic retrofit with steel frame, the necessary rate of steel frame of the school structure was built the drawings of standard for 1980's school structure compared with the whole was 15.3%, Changwon OO elementary school built in 1991 was 9.2%, and Geojae OO elementary school completed in 2004 was 7.2%, which meant that even though the sturcture were built without the consideration of seismic design, those which were relatively later completed had less necessity than the rest. The story drift after Seismic Retrofit with the methods shown above were all within the standard. In conclusion, the school structures which were built before 2005 when seismic design was required were better in terms of material strength, size of column, amount of rebar and structure standard than those which were built before 2005, so they could be reinforced with simple steel frame with lower cost, shorter duration of construction and not hide a range of vision.