反复荷载作用下钢筋混凝土箱涵的数值模拟
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摘要
为探讨浅埋式钢筋混凝土箱涵的抗震性能和确保在地震时箱涵侧壁钢筋先于顶板屈服,运用Final-v11有限元软件对承受反复荷载作用的两个箱涵缩尺试验体建立钢筋与混凝土的分离式模型,其中混凝土用三维实体单元模拟,而钢筋用杆单元模拟,考虑其黏结滑移,进行数值模拟分析,通过试验对比结构的滞回曲线、耗能能力、破坏位置、钢筋应变等,结果表明:此种数值模拟方法能够得到合理的结果。为了分析试验体各设计参数对箱涵抗震性能的影响,设计了一变参数模型,对比计算结果可知:增加腋角水平长度和加密顶板配筋均能增强箱涵的耗能能力和抗震性能,并能保证反复荷载作用下侧壁钢筋先于顶板屈服,这对箱涵的抗震设计具有指导意义。
To research the seismic behavior of the shallow-embedded reinforced concrete box culvert and to ensure the reinforcement yielding of lateral wall is earlier than slab's subjected to earthquake action,the discrete modeling of reinforced concrete box culvert's scaled specimens under low-cyclic reversed loading is proposed by using Finalv11. In this case,concrete is modeled by three-dimensional solid elements,while the reinforcing steel is modeled by truss elements and the connection between concrete and reinforcing steel is simulated by quadrilateral slide elements. Comparative analysis of numerical simulation results and experimental results are carried out in aspects of hysteretic behavior,energy dissipation capacity,failure position and steel strain,and the analytical method has a relatively good result. Subsequently,based on a variable parameter model,the research on the seismic behavior of lengthening the haunch dimension horizontally and strengthening the reinforcement of the slab is discussed,both two methods can improve the energy dissipation capacity of the box culvert and ensure the reinforcement yielding of the lateral wall is earlier than the slab's subjected to low-cyclic reversed loading. Some conclusions in this thesis will provide a theoretical basis for the design of reinforced concrete box culvert.
To research the seismic behavior of the shallow-embedded reinforced concrete box culvert and to ensure the reinforcement yielding of lateral wall is earlier than slab's subjected to earthquake action,the discrete modeling of reinforced concrete box culvert's scaled specimens under low-cyclic reversed loading is proposed by using Finalv11. In this case,concrete is modeled by three-dimensional solid elements,while the reinforcing steel is modeled by truss elements and the connection between concrete and reinforcing steel is simulated by quadrilateral slide elements. Comparative analysis of numerical simulation results and experimental results are carried out in aspects of hysteretic behavior,energy dissipation capacity,failure position and steel strain,and the analytical method has a relatively good result. Subsequently,based on a variable parameter model,the research on the seismic behavior of lengthening the haunch dimension horizontally and strengthening the reinforcement of the slab is discussed,both two methods can improve the energy dissipation capacity of the box culvert and ensure the reinforcement yielding of the lateral wall is earlier than the slab's subjected to low-cyclic reversed loading. Some conclusions in this thesis will provide a theoretical basis for the design of reinforced concrete box culvert.
引文
[1]郑永来,等.地下结构抗震[M].上海:同济大学出版社,2005:11-21.ZHENG Yonglai,et al.Seismic resistance of underground structures[M].Shanghai:Tongji University Press,2005:11-21.(in Chinese)
[2]林皋.地下结构抗震分析综述(上)[J].世界地震工程,1990,2:1-10.LIN Gao.Antiseismic research of underground structures(I)[J].World Earthquake Engineering,1990,2:1-10.(in Chinese)
[3]林皋.地下结构抗震分析综述(下)[J].世界地震工程,1990,3:1-10.LIN Gao.Antiseismic research of underground structures(II)[J].World Earthquake Engineering,1990,3:1-10.(in Chinese)
[4]Wang J.N.Seismic design of tunnels:a state-of-the-art approach[M].New York:Monograph 7,Parsons Brinkerhoff Quade and Douglas,Inc.,1993.
[5]刘如山,胡少卿.地下结构抗震计算中拟静力法的地震荷载施加方法研究[J].岩土工程学报,2007,29(2):237-242.LIU Rushan,HU Shaoqing.Study on seismic loading of pseudo-static approach used in the seismic design of underground structure[J].Journal of Geotechnical Engineering,2007,29(2):237-242.(in Chinese)
[6]Garg,A.K.and Abolmaali,A.Finite-element modeling and analysis of reinforced concrete box culverts[J].Journal of Transportation Engineering(ASCE),2009,135:121-128
[7]王会波.地下涵管结构抗震分析概述[J].南水北调与水利科技,2007,5(3):85-88.WANG Huibo.Antiseismic research of culvert structure[J].South-to-North Water Transfer and Water Science&Technology,2007,5(3):85-88.(in Chinese)
[8]Ottosen N.S..A failure criterion for concrete.[J].Journal of Transportation Engineering(ASCE),1977,103(EM4):527-535.
[9]日本土木学会.コンクリート標準示方書「構造性能照査編」.东京.2002.Japan Society of Civil Engineers.Standard specification for concrete structure(structural performance varification)[S].Tokyo.2002.(in Japanese)
[10]長沼一洋.三軸圧縮下のコンクリートの応力~ひずみ関係.日本建築学会構造系論文集,1995,474:163-170.Naganuma Kazuhiro.Stress-strain relationship for concrete under triaxial compression.[J].Journal of Structural and Construction Engineering,AIJ,1995,474:163-170.(in Japanese)
[11]長沼一洋.鉄筋コンクリート壁状構造物の非線形解析手法に関する研究(その1),日本建築学会構造系論文報告集,1991,421:39-48.Naganuma Kazuhiro.Study on nonlinear analytical method for reinforced concrete wall structures(Part 1)[J].Journal of Structural and Construction Engineering,AIJ,,1991,421:39-48.(in Japanese)
[12]長沼一洋,大久保雅章:繰返し応力下における鉄筋コンクリート板の解析モデル,日本建築学会構造系論文集,2000,536:135-142.Naganuma Kazuhiro,Ohkubo Masaaki.An analytical model for reinforced concrete panels under cyclic stresses[J].Journal of Structural and Construction Engineering,AIJ,2000,536:135-142.(in Japanese)
[13]Naganuma K.,Yonezawa K.,Kurimoto O.and Eto H.Simulation of nonlinear dynamic response of reinforced concrete scaled model using threedimensional finite element method,13th World Conference on Earthquake Engineering,2004,586.
[14]Hiroshi S.,Chou L.L.and Hajime O.Micro and macro models for bond in reinforced concrete[D].Tokyo:the University of Tokyo.1987:168
[15]Elmorsi M.,Kianoush M.R.and Tso W.K.:Modeling bond-slip deformations in reinforced concrete beam-column joints,Canadian Journal of Civil Engineering,2000,27:490-505.
[2]林皋.地下结构抗震分析综述(上)[J].世界地震工程,1990,2:1-10.LIN Gao.Antiseismic research of underground structures(I)[J].World Earthquake Engineering,1990,2:1-10.(in Chinese)
[3]林皋.地下结构抗震分析综述(下)[J].世界地震工程,1990,3:1-10.LIN Gao.Antiseismic research of underground structures(II)[J].World Earthquake Engineering,1990,3:1-10.(in Chinese)
[4]Wang J.N.Seismic design of tunnels:a state-of-the-art approach[M].New York:Monograph 7,Parsons Brinkerhoff Quade and Douglas,Inc.,1993.
[5]刘如山,胡少卿.地下结构抗震计算中拟静力法的地震荷载施加方法研究[J].岩土工程学报,2007,29(2):237-242.LIU Rushan,HU Shaoqing.Study on seismic loading of pseudo-static approach used in the seismic design of underground structure[J].Journal of Geotechnical Engineering,2007,29(2):237-242.(in Chinese)
[6]Garg,A.K.and Abolmaali,A.Finite-element modeling and analysis of reinforced concrete box culverts[J].Journal of Transportation Engineering(ASCE),2009,135:121-128
[7]王会波.地下涵管结构抗震分析概述[J].南水北调与水利科技,2007,5(3):85-88.WANG Huibo.Antiseismic research of culvert structure[J].South-to-North Water Transfer and Water Science&Technology,2007,5(3):85-88.(in Chinese)
[8]Ottosen N.S..A failure criterion for concrete.[J].Journal of Transportation Engineering(ASCE),1977,103(EM4):527-535.
[9]日本土木学会.コンクリート標準示方書「構造性能照査編」.东京.2002.Japan Society of Civil Engineers.Standard specification for concrete structure(structural performance varification)[S].Tokyo.2002.(in Japanese)
[10]長沼一洋.三軸圧縮下のコンクリートの応力~ひずみ関係.日本建築学会構造系論文集,1995,474:163-170.Naganuma Kazuhiro.Stress-strain relationship for concrete under triaxial compression.[J].Journal of Structural and Construction Engineering,AIJ,1995,474:163-170.(in Japanese)
[11]長沼一洋.鉄筋コンクリート壁状構造物の非線形解析手法に関する研究(その1),日本建築学会構造系論文報告集,1991,421:39-48.Naganuma Kazuhiro.Study on nonlinear analytical method for reinforced concrete wall structures(Part 1)[J].Journal of Structural and Construction Engineering,AIJ,,1991,421:39-48.(in Japanese)
[12]長沼一洋,大久保雅章:繰返し応力下における鉄筋コンクリート板の解析モデル,日本建築学会構造系論文集,2000,536:135-142.Naganuma Kazuhiro,Ohkubo Masaaki.An analytical model for reinforced concrete panels under cyclic stresses[J].Journal of Structural and Construction Engineering,AIJ,2000,536:135-142.(in Japanese)
[13]Naganuma K.,Yonezawa K.,Kurimoto O.and Eto H.Simulation of nonlinear dynamic response of reinforced concrete scaled model using threedimensional finite element method,13th World Conference on Earthquake Engineering,2004,586.
[14]Hiroshi S.,Chou L.L.and Hajime O.Micro and macro models for bond in reinforced concrete[D].Tokyo:the University of Tokyo.1987:168
[15]Elmorsi M.,Kianoush M.R.and Tso W.K.:Modeling bond-slip deformations in reinforced concrete beam-column joints,Canadian Journal of Civil Engineering,2000,27:490-505.
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