水平荷载作用下型钢再生混凝土柱受力性能非线性分析*
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(1 西安理工大学土木建筑工程学院，西安 710048；2 西安建筑科技大学土木工程学院， 西安 710055；3 四川省建筑科学研究院，成都 610081)［摘要］结合低周反复荷载作用下型钢再生混凝土柱抗震性能试验，在已有的再生混凝土本构关系模型和结构非线性分析理论的基础上，采用ABAQUS有限元软件对型钢再生混凝土柱在水平荷载作用下的受力性能进行了非线性分析，获取了型钢再生混凝土柱应力分布云图和荷载-位移骨架曲线，研究了型钢再生混凝土柱的应力分布规律，主要分析了再生粗骨料取代率、轴压比、体积配箍率对型钢再生混凝土柱受力性能的影响。研究结果表明，再生粗骨料取代率对型钢再生混凝土柱的承载力及延性变形影响较小；随着轴压比的增大，型钢再生混凝土柱的延性变形降低幅度较大；提高体积配箍率对该柱的受力性能是有利的，合理设计的型钢再生混凝土柱可应用于实际工程中。［关键词］型钢再生混凝土柱; 水平荷载; 受力性能; 非线性分析中图分类号：TU398.9,TU317.1 文献标识码：A 文章编号：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*国家自然科学基金（51408485, 51178384），西安市建设科技项目（SJW2014025），西安理工大学青年教师科研启动基金项目（118-211310）。作者简介：马辉，讲师，博士, Email: mahuiwell@163.com。参考文献［1］薛建阳，马辉，陈宗平，等.型钢再生混凝土柱保护层厚度力学分析［J］.工程力学,2013,30(5):202-206.［2］王妮,陈宗平,李启良,等.型钢再生混凝土组合柱轴压性能试验研究［J］.工程力学,2013,30(6):133-141.［3］薛建阳,马辉,刘义.反复荷载下型钢再生混凝土柱抗震性能试验研究［J］.土木工程学报，2014,47(1)：36-46.［4］肖建庄.再生混凝土［M］.北京：中国建筑工业出版社,2007.［5］薛建阳,赵鸿铁.型钢混凝土粘结滑移理论及其工程应用［M］.北京:科学出版社, 2007.［6］杨勇.型钢混凝土粘结滑移基本理论及其应用研究［D］.西安: 西安建筑科技大学,2003.
