- 摘 要
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（1 中國十七冶集團有限公司技術中心，馬鞍山 243000；2 安徽工業(yè)大學 建筑工程學院，馬鞍山 243032）
[摘要] 論文以保護層混凝土從碳化透徹到銹脹開裂過程中的RC構件為研究對象，通過分析常用單元族的力學特性并結(jié)合現(xiàn)有研究成果，認為三維實體線性減縮單元C3D8R和兩結(jié)點三維單元T3D2能很好地模擬混凝土材料、內(nèi)嵌鋼筋的力學行為，指出了指數(shù)衰減摩擦模型在處理銹蝕鋼筋與混凝土間接觸問題上的優(yōu)勢，將Hsich-Ting-Chen四參數(shù)強度準則作為混凝土材料的破壞準則，給出了銹蝕鋼筋、混凝土及材料間粘結(jié)滑移的本構模型?；诙帻g期RC構件抗震性能試驗研究結(jié)果，對論文提出的基于ABAQUS軟件平臺的適用于輕度銹蝕RC構件數(shù)值建模理論進行可靠性驗證，并取得了理想的驗證效果，為后續(xù)對相關科學問題的研究提供了一種可行、有效的研究手段。
[關鍵詞] 在役RC構件；ABAQUS軟件；數(shù)值建模理論；指數(shù)衰減摩擦模型；本構模型
中圖分類號：TU317+.1,TU375 文獻標識碼：A 文章編號：
The theory of numerical model for light corroded RC components
Yu Huachun1, Tao Qinglin2, Hu Yi1
(1 Technology Center, China MCC17 group Co., Ltd., Maanshan 243000, China;2 School of Civil & Architecture Engineering, Anhui University of Technology, Maanshan 243032, China)
Abstract: Taking RC components whose covered concrete evolved from fully carbonization to corrosion cracking as research object, the unit C3D8R and unit T3D2 are chosen to simulate the mechanic behavior of concrete and reinforcement according to the analysis of common elements mechanic property and existing achievements, and the superiority of exponential damping friction model on handling with the problem of contact between corrosion reinforcement and concrete is obviously exhibited, then the Hsich-Ting-Chen strength criterion is taken as concrete failure criterion and material constitutive models of corrosion reinforcement, concrete and bond-slip are provided. Based on the seismic performance experiment results of mult-age RC component, numerical model theory for light corroded RC component which has mentioned above is proved to be reliable, and the achievements can provide a feasible and effective method for solving correlated problem in subsequent study.
Keywords: existing RC component; ABAQUS program; numerical model theory; exponential damping friction model; constitutive model
參 考 文 獻
[1] 陸新征, 葉列平, 繆志偉. 建筑抗震彈塑性分析—原理、模型與在ABAQUS，MSC.MARC和SAP2000上的實踐[M]. 北京: 中國建筑工業(yè)出版社, 2010.
[2] 江見鯨, 陸新征, 葉列平, 等. 混凝土結(jié)構有限元分析[M]. 北京: 清華大學出版社, 2005.
[3] 王艷. 基于ABAOUS的混凝土重力壩地震響應仿真分析[D]. 楊凌: 西北農(nóng)林科技大學, 2010.
[4] Lamya Amleh, Alaka Ghosh. Modeling the effect of corrosion on bond strength at the steel-concrete interface with finite-element analysis [J]. Journal of Civil Engineering, 2006, 33(6): 673-687.
[5] 楊滿. 在役多齡期鋼筋混凝土柱抗震性能研究[D]. 哈爾濱: 哈爾濱工業(yè)大學, 2010.
[6] 惠云玲, 林志伸, 等. 銹蝕鋼筋性能試驗研究分析[J]. 工業(yè)建筑, 1997, 27(6): 6-13.
[7] 蔣鳳昌, 朱慈勉,薛劍勝 等. 銹蝕鋼筋壓屈名義本構關系的試驗研究及應用[J]. 東南大學學報：自然科學版, 2010, 40(4): 816-821.
[8] Sung jin B, Alexa M M, O guzhan B. Inelastic buckling of reinforcing bars [J]. Journal of Structural Engineering, 2005, 131(2): 314-321.
[9] 梁興文, 葉艷霞. 混凝土結(jié)構非線性分析[M]. 北京: 中國建筑工業(yè)出版社, 2007.
[10] 趙羽習, 金偉良. 銹蝕鋼筋與混凝土粘結(jié)性能的試驗研究[J]. 浙江大學學報：工學版, 2002(7): 352-356.
