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    龔士弘  盛光敏
    （重慶大學(xué)冶金及材料工程系 630044）

[提要] 分析了用于建筑結(jié)構(gòu)的鋼材在交變地震載荷下的高應(yīng)變低周疲勞破壞，提出了抗震建筑結(jié)構(gòu)用鋼應(yīng)有的性能要求及對(duì)抗震設(shè)計(jì)選材的建議。
[關(guān)鍵詞] 結(jié)構(gòu)鋼 鋼筋 抗震性 疲勞

The high strain low cycle fatigue fracture of steels used for building structure under conditions of alter-nating seismic loading is analysed. The necessary properties of aseismic building structural steels are proposed. The principles for selecting suitable material in accordance with aseismic design are suggested.
Keywords: structural steels; reinforcing bar; aseismic properties; fatigue