水平荷載作用下型鋼再生混凝土柱受力性能非線性分析*
馬輝1，薛建陽(yáng)2，高亮3,王振山1
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(1 西安理工大學(xué)土木建筑工程學(xué)院，西安 710048；2 西安建筑科技大學(xué)土木工程學(xué)院， 西安 710055；3 四川省建筑科學(xué)研究院，成都 610081)［摘要］結(jié)合低周反復(fù)荷載作用下型鋼再生混凝土柱抗震性能試驗(yàn)，在已有的再生混凝土本構(gòu)關(guān)系模型和結(jié)構(gòu)非線性分析理論的基礎(chǔ)上，采用ABAQUS有限元軟件對(duì)型鋼再生混凝土柱在水平荷載作用下的受力性能進(jìn)行了非線性分析，獲取了型鋼再生混凝土柱應(yīng)力分布云圖和荷載-位移骨架曲線，研究了型鋼再生混凝土柱的應(yīng)力分布規(guī)律，主要分析了再生粗骨料取代率、軸壓比、體積配箍率對(duì)型鋼再生混凝土柱受力性能的影響。研究結(jié)果表明，再生粗骨料取代率對(duì)型鋼再生混凝土柱的承載力及延性變形影響較?。浑S著軸壓比的增大，型鋼再生混凝土柱的延性變形降低幅度較大；提高體積配箍率對(duì)該柱的受力性能是有利的，合理設(shè)計(jì)的型鋼再生混凝土柱可應(yīng)用于實(shí)際工程中。［關(guān)鍵詞］型鋼再生混凝土柱; 水平荷載; 受力性能; 非線性分析中圖分類(lèi)號(hào)：TU398.9,TU317.1 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2015)05-0063-06Nonlinear analysis on mechanical properties of steel reinforced recycled concrete columns under horizontal loadsMa Hui1, Xue Jianyang2, Gao Liang3, Wang Zhenshan1(1 School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, China; 2 School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; 3 Sichuan Institute of Building Research, Chengdu 610081, China)Abstract: On the basis of the seismic performance test of steel reinforced recycled concrete (SRRC) columns under low reversed cyclic loading, the nonlinear analysis on mechanical properties of the columns under horizontal loads was performed by the ABAQUS based on the existing constitutive relation model of the recycled concrete and the nonlinear analysis theories of structures. The stress nephograms and load-displacement skeleton curves of SRRC columns were obtained and the stress distribution rules of SRRC columns were also studied. Besides, the influences of recycled coarse aggregate replacement ratio, axial compression ratio and stirrup ratio on the mechanical properties of SRRC columns were also investigated in detail. The research results show that the influence of recycled coarse aggregate replacement ratio on the bearing capacity and ductile deformation of SRRC columns is not obvious. As the increase of axial compression ratio, the ductile deformation of columns reduces a lot. Increasing stirrup ratio is beneficial for the mechanical properties of SRRC columns. The steel reinforced recycled concrete columns can be applied to the practical engineering through the reasonable design.Keywords: steel reinforced recycled concrete column; horizontal load; mechanical property; nonlinear analysis*國(guó)家自然科學(xué)基金（51408485, 51178384），西安市建設(shè)科技項(xiàng)目（SJW2014025），西安理工大學(xué)青年教師科研啟動(dòng)基金項(xiàng)目（118-211310）。作者簡(jiǎn)介：馬輝，講師，博士, Email: mahuiwell@163.com。參考文獻(xiàn)［1］薛建陽(yáng)，馬輝，陳宗平，等.型鋼再生混凝土柱保護(hù)層厚度力學(xué)分析［J］.工程力學(xué),2013,30(5):202-206.［2］王妮,陳宗平,李啟良,等.型鋼再生混凝土組合柱軸壓性能試驗(yàn)研究［J］.工程力學(xué),2013,30(6):133-141.［3］薛建陽(yáng),馬輝,劉義.反復(fù)荷載下型鋼再生混凝土柱抗震性能試驗(yàn)研究［J］.土木工程學(xué)報(bào)，2014,47(1)：36-46.［4］肖建莊.再生混凝土［M］.北京：中國(guó)建筑工業(yè)出版社,2007.［5］薛建陽(yáng),趙鴻鐵.型鋼混凝土粘結(jié)滑移理論及其工程應(yīng)用［M］.北京:科學(xué)出版社, 2007.［6］楊勇.型鋼混凝土粘結(jié)滑移基本理論及其應(yīng)用研究［D］.西安: 西安建筑科技大學(xué),2003.
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