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（長安大學(xué)建筑工程學(xué)院， 西安 710061）
［摘要］根據(jù)南寧地鐵清平坡站的實際情況，采用1∶2縮尺比設(shè)計了普通鋼筋混凝土柱和鋼筋混凝土分體柱進(jìn)行擬靜力試驗，研究普通鋼筋混凝土柱和鋼筋混凝土分體柱的破壞模式，分析各類構(gòu)件的延性、剛度退化、滯回耗能等抗震性能。試驗結(jié)果表明：分體長柱、短柱的延性系數(shù)分別達(dá)到3.44，4.34，其耗能系數(shù)分別達(dá)1.25，1.47；分體柱的剛度退化較為緩和，充分表明分體柱具有較好的抗震性能。
［關(guān)鍵詞］鋼筋混凝土；分體柱；抗震性能；延性；耗能系數(shù)
中圖分類號：TU375文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2021)04-0077-09
Experimental research on seismic performance of central column in metro station
MA Qianying, ZHAO Guangqi, JIANG Cunyu
(School of Architectural Engineering, Chang′an University, Xi′an 710061， China)
Abstract:According to the actual situation of Qingpingpo Station of Nanning Metro, ordinary reinforced concrete columns and reinforced concrete split columns at a scale of 1∶2 were designed to carried out the pseudo-static test. The failure modes of ordinary reinforced concrete columns and reinforced concrete split columns were studied, and seismic performance of various components were analyzed, such as the ductility, stiffness degradation, hysteretic energy dissipation. The test results show that the ductility coefficients of the split long column and short column reach 3.44 and 4.34 respectively, and the energy dissipation coefficients reach 1.25 and 1.47 respectively; the stiffness degradation of the split column is relatively gentle, which fully shows that the split column has good seismic performance.
Keywords:reinforced concrete; split column;seismic performance;ductility;energy dissipation coefficient
*陜西省自然科學(xué)基金重點(diǎn)項目(2020SF-382)，陜西省自然科學(xué)基金項目（2014JM2-5080）。
作者簡介：馬乾瑛，博士，副教授，碩士生導(dǎo)師，Email：mqy@chd.edu.cn。
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