論文・報告
| No. | タイトル・執筆者 |
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| 8 | |
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座屈拘束部材を用いた損傷制御型トラス梁の塑性変形能力を確認するために、トラス梁の加力実験を行った。試験体は従来型トラス梁のTRUSS1と、損傷制御型トラス梁であるTRUSS2、TRUSS3の3体である。TRUSS3は座屈拘束部材の周辺部材の変形追従性を向上させるために、座屈拘束部材直上の上弦材と斜材 の接合部を半剛接合とした。加力実験の結果、TRUSS1は部材角R=0.0125rad近傍で 圧縮側弦材に局部座屈が生じ、耐力が 劣化し た。一方、TRUSS2とTRUSS3は、R=0.02radに至るまで安定した塑性変形能力を示し、個材の座屈は生じなかった。TRUSS2は座屈拘束部材の周辺部材に軽微な損傷が見られたが、TRUSS3の損傷は皆無であった。 キーワード: 平行弦トラス、座屈拘束部材、損傷制御、塑性変形能力 |
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In order to confirm plastic deformation capacity of damage-controlled truss beam, loading tests of truss beam with buckling restrained member were conducted. The specimens are comprised of three models, one is normal type TRUSS1, the others are damaged-controlled type TRUSS 2 and TRUSS3. TRUSS3 h ad a semi-rigid connection of diagonal and horizontal members just above the buckling restrained member to improve rotational deformation performance. As a result, TRUSS1 showed strength deterioration due to local buckling of the compression horizontal member in angle R =0.0125 rad. TRUSS2 and TRUSS3 showed stable plastic deformation performance up to R =0.02 rad, and no buckling was observed. TRUSS2 showed slight damage around the buckling restraint member, but TRUSS3 didn't show any damage. Key Words: Parallel Chord Truss、Buckling Restrained Member、Damage Control、Plastic Deformation Capacity |
概要