既存屋内運動場露出柱脚の復元力特性と楔デバイスによる耐震改修工法について

日本建築学会

書誌事項

タイトル別名
  • REHABILITATION TECHNIQUE BY MEANS OF WEDGE-DEVICE AND RESTORING FORCE CHARACTERISTICS OF EXPOSED COLULMN-BASE IN AN EXISTING GYMNASIUM

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The large damage to column-bases of steel gymnasiums by the Hyogoken-nanbu Earthquake was occurred. The main damage to exposed column-bases was the fracture of anchor bolts. Most of column-bases of existing steel structures constructed before 1981 were designed as pinned-type ones. The experiments on fixed-type column-bases have been carried out and the restoring force characteristics are known to be slip-type ones. In this paper, a study on the column-bases in an existing gymnasium was conducted experimentally and analytically to obtain the restoring force characteristics. In addition, the wedge-devices invented by authors was applied to the column-base to improve the slip-type restoring force characteristics.

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