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STUDY ON BEARING MECHANISMS OF RECYCLED AGGREGATE CONCRETE-FILLED STEEL TUBULAR MEMBERS
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摘要: 在确定钢管与核心再生混凝土本构关系模型的基础上,采用有限元法对钢管再生混凝土轴压短柱、纯弯构件和压弯构件的破坏模态和荷载-变形关系曲线进行全过程分析,揭示出受力过程中钢管与核心再生混凝土截面应力分布规律及钢管与核心再生混凝土之间的相互作用,较为深入地认识了静力荷载作用下钢管再生混凝土构件的工作机理。Abstract: Based on the constitutivemodels of steel and core recycled aggregate concrete (RAC), the failure modes and the load versus deformation complete curves of recycled aggregate concrete filled steel tubular (RACFST) stub columns, beams and beam- columns were calculated using finite element analysis (FEA) method.The analytical results reveal the rules of stress distribution in steel and RAC cross-section, and the interaction between the steel tube and core RAC under loading procedure.The results in this paper deeply demonstrate the working mechanisms of RACFST members subjected to static loads.
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Key words:
- concrete-filled steel tube /
- recycled aggregate concrete /
- mechanism
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刘数华, 冷发光.再生混凝土技术.北京: 中国建材工业出版社,2007 Yang Y F, Han L H.Compressive and Flexural Behaviour of RecycledAggregat e Concret e Filled Steel Tubes (RACFST ) Under Shor-t TermLoadings.Steel Composit e Structures, 2006, 6(3): 257- 284 Yang Y F, Han L H.Experimental Behaviour of Recycled Aggregat eConcrete Filled Steel Tubular Columns.Journal of Construct ional St eelResearch, 2006, 62(12): 1 310- 1 324 杨有福.钢管再生混凝土构件力学性能和设计方法若干问题的探讨.工业建筑, 2006, 36(11): 1- 5 Hibbitt, Karlson, Sorenson.ABAQUS Version 6 4: Theory Manual,Users Manual, Verif ication Manual and Example Problems Manual.Hibbitt, Karlson and Sorenson Inc., 2003 吴凤英.钢管再生混凝土轴压力学性能研究: [ 硕士学位论文].福州: 福州大学, 2007 张 波.圆钢管再生混凝土压弯构件力学性能研究: [ 硕士学位论文].福州: 福州大学, 2007 叶 欣.方钢管再生混凝土压弯构件力学性能研究: [ 硕士学位论文].福州: 福州大学, 2007 韩林海.钢管混凝土结构: 理论与实践.第二版.北京: 科学出版社, 2007 韩林海, 杨有福.现代钢管混凝土结构技术.北京: 中国建筑工业出版社, 2004 -
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