強震をうける重層骨組の損傷分布に関する基礎的考察

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タイトル別名
  • DAMAGE DISTRIBUTION LAW OF MULTI-STORY FRAMES UNDER STRONG GROUND MOTIONS
  • キョウシン オ ウケル ジュウソウ ホネグミ ノ ソンショウ ブンプ ニ カン

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This paper first discusses the general features of distributions of damages in multi-story frames under strong ground motions based on numerical response analyses of shear-type lumped mass models. A basic law that governs distributions of damages is then determined by using seismic load distributions expressed in terms of the second joint moments of story shear forces. The results of response analyses show that, as the strength of a story in a multi-story frame decreases, the damage in that weak story increases sharply while the damages in the other stories close to the weak story decrease suddenly. The proposed damage distribution law captures well these tendencies.

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