- 摘 要
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（東華理工大學建筑工程學院， 南昌 330013）
［摘要］為了研究型鋼部分包裹再生混凝土短柱（強軸）的偏心受壓性能，設計了6個試件并進行靜力加載試驗，不同試件的主要變化參數(shù)為再生粗骨料取代率、偏心率。通過試驗獲得了試件的破壞形態(tài)、承載力、荷載-撓度曲線、荷載-應變曲線，采用國外相關規(guī)范的計算方法對型鋼部分包裹再生混凝土短柱（強軸）的偏心受壓承載力進行計算，并與試驗結果進行了對比分析。研究結果表明：試件的極限承載能力隨著再生粗骨料取代率和偏心距的增大而減?。桓鶕?guī)范ANSI/AISC 360-10計算的型鋼部分包裹再生混凝土短柱（強軸）的偏心受壓承載力與試驗結果較為吻合。
［關鍵詞］部分包裹再生混凝土； 短柱； 偏心受壓； 承載力
中圖分類號：TU317， TU398+.9 文獻標識碼：A文章編號：1002-848X(2019)08-0076-04
Experimental study on mechanical behavior of section steel partially encased recycled aggregate concrete short columns (strong axis) subjected to eccentric compression
Liang Jiongfeng, Jiang Tao, Wang Jianbao, Chang Yi, Yang Wenrui
(Faculty of Civil & Architecture Engineering, East China Institute of Technology, Nanchang 330013, China)
Abstract:In order to study the mechanical behavior of section steel partially encased recycled aggregate concrete short columns (strong axis) subjected to eccentric compression, six specimens were designed and the static loading tests were carried out. The main variation parameters of different specimens were recycled coarse aggregate replacement rate and load eccentricity ratio. The failure patterns, bearing capacity, load-displacement curves and load-strain curves were obtained by tests. The bearing capacity of partially encased recycled aggregate concrete short columns (strong axis) subjected to eccentric compression was calculated by the calculation method of existing foreign codes, and the calculation results were analyzed and compared with the experimental results. The results show that the bearing capacity of the specimen decreases with the increase of recycled coarse aggregate replacement percentage and load eccentricity ratio. The bearing capacity of partially encased recycled concrete short columns (strong axis) subjected to eccentric compression calculated according to the code ANSI/AISC 360-10 is in good agreement with the experimental results.
Keywords:partially encased recycled aggregate concrete; short column; eccentric compression; bearing capacity
*國家自然科學基金資助項目（51368001），江西省杰出青年人才計劃項目（20162BCB23051），江西省重點研發(fā)計劃項目（20161BBH80045），江西省教育廳科技項目（GJJ150586，GJJ14497），中國博士后基金資助項目（2014M562132），中南大學博士后基金資助項目（134381），江西省新能源工藝與裝備工程技術研究中心開放基金項目（JXNE-2014-08）。
作者簡介：梁炯豐，博士，副教授，碩士生導師，Email：jiongfeng108@126.com。
