DAMAGE RATIO FUNCTIONS OF STEEL BUILDINGS IN 1995 HYOGO-KEN NANBU EARTHQUAKE

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  • HAYASHI Yasuhiro
    Disaster Prevention Research Institute, Kyoto Univ.
  • SUITA Keiichiro
    Disaster Prevention Research Institute, Kyoto Univ.
  • INOUE Maki
    Dept. of Urban and Environment Engineering, Graduate School of Engineering, Kyoto University

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  • 1995年兵庫県南部地震に基づく鉄骨造建物の被害率曲線
  • 1995ネン ヒョウゴケン ナンブ ジシン ニ モトヅク テッコツゾウ タテモノ ノ ヒガイリツ キョクセン

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Abstract

Seismic performance of 3 to 6 story steel buildings are investigated based on the damage survey and PGV estimation during the 1995 Hyogo-ken Nanbu earthquake. Major findings are as follows. First, damage levels of exterior walls such as mortar walls and ALC panel walls are classified schematically and their correspondence to structural damage is investigated. The damage ratio functions, which indicate relationships between PGVs and damage ratios for damage levels of structure or exterior walls. From the comparison of damage ratio functions, the moderate structural damage is comparable to the complete loss of property value and the damage level of ALC panel walls is reduced by the improvement in seismic performance of steel structures by the amendment of the Building Standard Code in 1981.

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