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FINITE-ELEMENT ANALYSIS OF MECHANICAL BEHAVIORS OF NORMAL CROSS-SECTION OF STEEL RECYCLED AGGREGATE CONCRETE COMPOSITE COLUMNS
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摘要: 采用OpenSees作为有限元分析平台对6根型钢再生混凝土轴压试件和9根偏压试件进行受压静载试验全过程的非线性数值模拟，分析了再生混凝土取代率、长细比及混凝土强度对型钢再生混凝土组合柱轴心受压承载力的影响和再生混凝土取代率、相对偏心距及混凝土强度对型钢再生混凝土组合柱偏心受压承载力的影响。在分析中，选用基于柔度法的纤维模型进行型钢再生混凝土柱的静力非线性分析，并结合梁柱杆件单元，根据不同的材料属性对型钢再生混凝土柱正截面进行精细划分，来实现型钢再生混凝土柱的模拟技术。与试验的对比分析表明，OpenSees能够有效地模拟型钢再生混凝土柱正截面的受力和变形过程，具有较好的计算精度。Abstract: In this paper，it was carried out nonlinear numerical simulation of six axial specimens and nine eccentriccompression specimens of steel reinforced recycled aggregate concrete columns using open-source earthquakeengineering simulation system OpenSees． It was also analysed the effects of the recycled aggregate replacement rate，slenderness ratio and concrete strength on the bearing capacity of the exially loaded specimens，and also analyzed theeffects of the recycled aggregate replacing rate，relative eccentricity and concrete strength on the bearing capacity ofthe eccentrically loaded specimens． In the analyzing process，the column section was fine-divided and different fiberswere defined to simulate the appropriate material properties． And then，a model of SＲＲAC column was establishedbased on the nonlinear beam-column element． The comparative analysis of the simulation results and the experimentalresults indicates that OpenSees Program can be used in simulating the loading process of steel reinforced recycledaggregate concrete columns effectively．
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[2] 欧阳雯欣,王清远.灾后再生混凝土的应用及推广分析[J].四川建筑科学研究,2010,36 (6):178-184. 侯星宇.再生混凝土研究综述[J].混凝土,2011(7):97-98. [3] 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[J].工业建筑,2006,36(11):1-5. [4] 刘昕,张雄,李雯霞,等.国内外再生粗骨料研究新进展[J].建筑技术,2010,41 (1):63-66. [5] 张卫东,王振波.钢骨再生混凝土偏压短柱承载力的试验研究[J].低温建筑技术,2010,32 (10):23－25. [6] 李锦枝,张福瑞.大偏心受压钢骨再生混凝土柱的有限元分析[J].山西建筑,2010,36 (34):64-65. [7] 崔卫光.型钢再生混凝土组合柱正截面受力性能试验研究[D].西安:西安建筑科技大学,2011. [8] Silvia Mazzoni, Frank Mckenna, Scott Michael H, et al.OpenSees Users Manual [R].PEER,Berkeley: University of California,2004. [9] Mazzoni S,Mckenna F,Scott M H,et al.OpenSees Command Language Manual [EB /OL].http: //opensees.berkeley.edu /wiki /index.php /Concrete02_ Material_-－ _Linear_ Tension _Softening.2010-09-16. [10] Scott B D,Park R,Priestley M J N.Stress-Strain Behavior ofConcrete Confined by Overlapping Hoops at Low and High StrainRates [J].ACI Journal,1982,79(2): 13-27. [11] 肖建庄.再生混凝土[M].北京:中国建筑工业出版社,2008. [12] Menegotto M,Pinto P E.Method of Analysis for Cyclically LoadedReinforced Concrete Plane Frames Including Changes in Geometryand Non-Elastic Behavior of Elements Under Combined NormalForce and Bending [C]//Proceedings of the Conference onResistance and Ultimate Deformability of Structures Acted on byWell Defined Repeated Loads.Lisbon: International Associationfor Bridge and Structural Engineering,1973: 15-22. [13] Mazzoni S,Mckenna F,Scott M H,et al.OpenSees CommandLanguage Manual [EB /OL].http: //opensees.berkeley.edu /wiki /index.php /Steel02 _ Material _-－ _ Giuffr% C3% A9-Menegotto-Pinto_Model_with_Isotropic_Strain_Hardening.2012-09-20. [14] 郑山锁,王唯,李龙.基于纤维模型的型钢混凝土柱精细化建模分析[J].广西大学学报,2012,37 (2):197-203. 期刊类型引用(5)
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