幅厚比の大きな柱材の震災復旧法および耐震補強法に関する実験的研究

概要

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An experimental study on the probable repair techniques and reinforcement for steel frames was carrid out. The purpose was to investigate a repair method for wide flange columns which were subjected to severe local bucklings and reinforcement method of wide flange columns with large width to thickness ratio. One bay one story four steel frame specimens were tested. Two specimens were plastically loaded cyclically beforehand, under a constant vertical load. At the both top and bottom of the columns severe local bucklings occured. These two damaged specimens were then repaired. The other two specimens were reinforced originally by welding cover plates or rib plates. These four frame specimens were loaded cyclically until their story drift reached approximately 1/20 radian. The test results were discussed, and it comes clear that the tested repair method and reinforcing method were very effective.
一般社団法人日本建築学会の論文
1990-03-15