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(1 西安建筑科技大學(xué)土木工程學(xué)院， 西安 710055； 2 天津大學(xué)建筑工程學(xué)院， 天津 300072)

［摘要］提出裝配框架柱的一種新型連接型式——鋼板栓筋連接型式。采用足尺模型，設(shè)計(jì)了2個(gè)鋼板栓筋連接高強(qiáng)箍筋約束混凝土柱和2個(gè)對(duì)比現(xiàn)澆普通箍筋柱。通過擬靜力低周反復(fù)加載試驗(yàn)，并與現(xiàn)澆普通箍筋柱對(duì)比，研究鋼板栓筋連接高強(qiáng)箍筋約束混凝土柱的承載能力和抗震性能。觀測(cè)了4個(gè)試件受力→變形→損傷→裂縫→屈服的全過程，并分析各試件的破壞特征、滯回曲線、骨架曲線、剛度衰減、位移延性、耗能能力等。試驗(yàn)表明：在相同條件下，鋼板栓筋連接高強(qiáng)箍筋約束混凝土柱具有與現(xiàn)澆普通箍筋柱相當(dāng)?shù)某休d力，其抗震性能良好；連接處采用焊接及水平栓筋的鋼板栓筋連接高強(qiáng)箍筋約束混凝土柱是可靠的。

［關(guān)鍵詞］高強(qiáng)螺旋箍筋; 約束混凝土; 裝配式柱; 水平栓筋; 抗震性能

中圖分類號(hào)：TU756.4+1      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2014)01-0042-07

Experimental research on seismic performance of the fabricated confined concrete columns with steel plate and horizontal strengthened bars

Li Qingning1, Zhang Zhencheng1, Yu Qingrong2, Jiang Weishan1

(1 School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; 2 Architectural and Civil Engineering Institute, Tianjin University, Tianjin 300072, China)

Abstract: A new connection type of frame fabricated columns with steel plate and horizontal strengthened bars was proposed. By using of the comparable full scale model test method，two new confined concrete columns with steel plate and horizontal strengthened bars and two cast-in-site columns with plain stirrups were designed and constructed. Through the pseudo-static test, the carrying capacity and seismic performance of the fabricated confined concrete column with steel plate and horizontal strengthened bar were studied and compared with the cast-in-site columns with plain stirrups. The whole process of deforming→damaging→cracking→yielding→failure was observed during the test. Damage characteristics, hysteretic curves, skeleton curves,stiffness degradation, displacement ductility and energy dissipation capacity of the four columns were discussed. The test results show that under the same condition, bearing capacity of the new fabricated confined concrete columns with steel plate and horizontal strengthened bar is equal to the cast-in-site columns with plain stirrups, and it also has good seismic performance. Junction of the new fabricated confined concrete columns with steel plate and horizontal strengthened bar used welding and horizontal bar as its attended mode is reliable.

Keywords: high-strength spiral stirrup; confined concrete; fabricated column; horizontal strengthened bar; seismic performance

*國(guó)家自然科學(xué)基金項(xiàng)目（10572107），河北省地方科技項(xiàng)目（2011188）。

作者簡(jiǎn)介：李青寧，教授，碩士，Email:lqn952@163.com。

參考文獻(xiàn)

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［4］GB 50010—2010 混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范［S］. 北京:中國(guó)建筑工業(yè)出版社,2011.

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