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    黃襄云  周福霖  羅學(xué)海  王立超
    （廣州大學(xué)工程結(jié)構(gòu)抗震研究中心  廣州 510405）

[提要]  鋼管混凝土結(jié)構(gòu)推廣應(yīng)用的關(guān)鍵技術(shù)問(wèn)題之一是節(jié)點(diǎn)問(wèn)題。通過(guò)低周反復(fù)荷載試驗(yàn)及地震模擬振動(dòng)臺(tái)試驗(yàn)，對(duì)三種型式的鋼管混凝土柱框架結(jié)構(gòu)的梁柱節(jié)點(diǎn)（單梁節(jié)點(diǎn)、單雙梁節(jié)點(diǎn)、雙梁節(jié)點(diǎn)）的抗震性能進(jìn)行了理論分析及試驗(yàn)研究，研究表明，三種節(jié)點(diǎn)均具有良好的抗震性能，其中尤以單梁節(jié)點(diǎn)為最佳。研究成果可供結(jié)構(gòu)設(shè)計(jì)和工程應(yīng)用參考。
[關(guān)鍵詞]  鋼管混凝土  節(jié)點(diǎn)  抗震性能  地震模擬  振動(dòng)臺(tái)試驗(yàn)

Study on joint is one of the key problems for developing structures of the concrete filled steel tubular( CFST). For this reason, some designers present three joint types: joint of cast-in-place RC single beam and CFST column, cast-in-place RC double beams and CFST column, cast-in-place RC single-double beams and CFST column.Anti-seismic behaviors and seismic simulation experiments are conducted. According to the analysis and experiments,dynamic behaviors and earthquake response of the three joint types of CFST column frame are to be analyzed. It shows that,three joints, especially the joint of cast-in-place RC single beam and CFST column, have the favorable earthquake behavior. It will be referred to structure design.
Keywords:  concrete filled steel tubular column; joint; earthquake behavior; seismic simulation experiment