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2002 Fiscal Year Final Research Report Summary

Active Control over Failure of RC Members by Application of Interrelation between Artificial Pre-Crack and Non-Orthogonal Crack

Research Project

Project/Area Number 13355019
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 土木材料・力学一般
Research InstitutionThe University of Tokyo

Principal Investigator

MAEKAWA Koichi  Graduate School of Engineering, Professor, 大学院・工学系研究科, 教授 (80157122)

Co-Investigator(Kenkyū-buntansha) ISHIDA Tetsuya  Graduate School of Engineering, Lecturer, 大学院・工学系研究科, 講師 (60312972)
KISHI Toshiharu  Institute of Industrial Science, Associate Professor, 生産技術研究所, 助教授 (90251339)
Project Period (FY) 2001 – 2002
Keywordsartificial pre-crack / shear capacity / seismic stability / numerical analysis / reinforced concrete / non-orthogonal crack / active-crack method / tension-stiffness
Research Abstract

1) In order to clarify the interrelation between artificial pre-crack induced in concrete member and shear crack caused by shear force, a series of experiments was performed. Under both monotonic and cyclic loading, the artificial pre-creak prevented propagation of new share crack and then the capacity and ductility of RC member increased. On the contrary, when the angle between pre-crack and new crack because less than 30 degree, the capacity of member was decreased owing to the new crack formed along the pre-crack.
2) Non-orthogonal smeared crack model of enhancing active crack method was adopted as a constitutive law to deal with non-orthogonal cracks with intersection. Comparinson with the experimental results verified that the proposed model could well predict the behavior of cracks with mutual interaction.
3) Shear behavior of concrete members with embedded plastic plates, as devices to emulate pre-cracks, was studied based on both experimental facts and analytical approach. As a result, proposed joint element had a beneficial effect on modeling consecutive plates.
4) The accuracy of the proposed non-orthogonal crack model was verified with experiments of RC plate structures under multi-directional loading. The result showed that active-crack method, which defined Intersection angle of 22.5 degrees as a threshold, could well predict interrelation between non-orthogonal cracks. In addition, the application of the model for structures that consist of high strength concrete and high strength reinforcing bars was proven.
5) Because thermal stress was assumed as an introduction source of pre-cracks, the tension-stiffness behavior of embedded steel in concrete under high temperature was clarified experimentally. The manifested characteristics were incorporated into the structural numerical analysis system.

  • Research Products

    (43 results)

All Other

All Publications (43 results)

  • [Publications] Hansapinyo, C., Maekawa, K., Chaisomphob, T.: "Behavior of Reinforced Concrete Beams Subjected to Bi-Axial Shear"Journal of Materials, Concrete Structures and Pavements, JSCE. No.725/V-58. 321-331 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Soltani, M., An, X., Maekawa, K.: "Computational Model for Post Cracking Analysis of RC Membrane Elements Based on Local Stress-Strain Characteristics"Engineering Structures Journal. 25. 993-1007 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Soltani, M., An, X., Maekawa, K.: "Cracking Response and Local Stress Characteristics of RC Memberane Elements Reinforced with Welded Wire Mesh"Cement and Concrete Composites Journal. (in press). (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Choi, K.Y., Maekawa, K.: "Bond Behavior in RC Tension Members Based on the Change of Concrete Fracture Characteristics with Temperature"Proceedings of the JCI. Vol.25(in press). (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] El-Kashif, K., Maekawa, K.: "Computational Model for Time-Dependent Compressive Behavior Based on Plasticity and Fracturing Approach"Proceedings of the JCI. Vol.25(in press). (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 半井健一郎, 三輪康弘, 前川宏一: "立体支持条件を考慮したディープビームの3次元非線形解析と検証"コンクリート工学年次論文報告集. 第25巻(in press). (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Pimanmas, A., Maekawa, K.: "Influence of Pre-cracking on Reinforced Concrete Behavior in Shear"Concrete Library of JSCE. No.38. 207-223 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 土屋智史, 三島徹也, 前川宏一: "高強度構成材料を用いたRC梁部材のせん断破壊と数値性能評価"土木学会論文集. No.697/V-54. 65-84 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Song, H.W., Shim, S.H., Byun, K.J., Maekawa, K.: "Failure Analysis of Reinforced Concrete Shell Structures Using Layered Shell Element with Pressure Node"Journal of Structural Engineering, ASCE. Vol.128 No.5. 655-664 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Dhakal, R.P., Maekawa, K.: "Modeling for Postyield Buckling of Reinforcement"Journal of Structural Engineering, ASCE. Vol.128 No.9. 1139-1147 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Dhakal, R.P., Maekawa, K.: "Reinforcement Stability and Fracture of Cover Concrete in RC Members"Journal of Structural Engineering, ASCE. Vol.128 No.10. 1253-1262 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Maekawa, K., Tsuchiya, S.: "Nonlinear Analysis Based Verification of Structural Seismic Performance for Practice"Proceedings of the 1st fib Congress 2002, OSAKA. Session 6. 1-16 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Pimanmas, A., Maekawa, K., Fukuura, N.: "Crack Propagation Control with Pre-existing Slits and Cracks in Concrete"Proceedings of the 1st fib Congress 2002, OSAKA. Session 13. 107-116 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tsuchiya, S., Mishima T., Maekawa, K.: "Shear Failure Analysis of RC Beams Using High Strength Materials"Proceedings of the 1st fib Congress 2002, OSAKA. Session 13. 207-216 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 土屋智史, 前川宏一: "多方向入力を受けるRC棒部材断面の損傷指標"土木学会論文集. No.718/V-57. 45-57 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Song, H.W., You, D.W., Byun, K.J., Maekawa, K.: "Finite Element Failure Analysis of Reinforced Concrete T-Girder Bridges"Engineering Structures Journal. 24. 151-162 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Dhakal, R.P., Maekawa, K.: "Path-Dependent Cyclic Stress-Strain Relationship of Reinforcing Bar Including Buckling"Engineering Structures Journal. 24. 1383-1396 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hansapinyo, C., Pimanmas, A., Maekawa, K., Chaisomphob, T.: "Proposed Model of Shear Deformation of Reinforced Concrete Beam after Diagonal Cracking"Journal of Materials, Concrete Structures and Pavements, JSCE. No.725/V-58. 305-319 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.TSUCHIYA, K.TSUNO and K.MAEKAWA: "Nonlinear Three-dimensional FE Solid Response Analysis of RC Columns Subjected to Combined Permanent Eccentric Axial Force and Reverced Cyclic Torsion and Bending/Shear"J. of Materials, Concrete and Pavements. No.683/V-52. 131-143 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Pimanmas, A. and Maekawa, K.: "Numerical Simulation of Failure Path Formation and Crack Sequence in RC with Full and Local Shear Anisotropy"Journal of Materials, Concrete Structures and Pavements, JSCE. No.683/V-52. 157-171 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Pimanmas,A.and Maekawa,K.: "Control of Crack Localization and Formation of Failure Path in RC Members Contaning,Artificial Crack Device"Journal of Materials, Concrete Structures and Pavements, JSCE. No.683/V-52. 173-186 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Pimanmas, A. and Maekawa, K.: "Finite Element Analysis and Behaviour of Pre-cracked Reinforced Concrete Members in Shear"Magazine of Concrete Research. 2001,53, No.4. 263-282 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Pimanmas, A. and Maekawa, K.: "Shear Failure of RC Members Subjected to Pre-cracks and Combined Axial Tension and Shear"Journal of Materials, Concrete Structures and Pavements. No.690/V-53. 159-174 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Pimanmas, A. and Maekawa, K.: "Discussion/Closure "Influence of Pre-crack on RC behavior in Shear""Journal of Materials, Concrete Structures and Pavements. No.690/V-53. 185-189 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Pimanmas, A. and Maekawa, K.: "Influence of Pre-cracking on Reinforced Concrete Behavior in Shear"Concrete Library of JSCE. No.38. 207-223 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.TSUCHIYA, T.MlSHIMA and K.MAEKAWA: "Shear Failure and Numerical performance Evaluation of RC Beam members with High Strength materials"Journal of Materials, Concrete Structures and Pavements. No.697/V-54. 65-84 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Song, H.W., Shim, S.H., Byun, K.J. and Maekawa, K.: "Failure Analysis of Reinforced Concrete Shell Stuctures Using Layered Shell Element with Pressure Node"Journal of Structural Engineering, ASCE. 128, No.5. 655-664 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Dhakal, R.P. and Maekawa, K.: "Modeling for Postyield Buckling of Reinforcement"Journal of Structural Engineering, ASCE. 128, No.9. 1139-1147 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Dhakal, R.P. and Maekawa, K.: "Reinforcement Stability and Fracture of Cover Concrete in RC Members"Journal of Structural Engineering. 128, No.10. 1253-1262 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Maekawa, K. and Tsuchiya, S.: "Nonlinear Analysis Based Verification of Structural Seismic Performance for Practice"Proceedings of the 1^<st> fib Congress 2002. Session 6. 1-16 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Pimanmas, A., Maekawa, K. And Fukuura, N.: "Crack Propagation Control with Pre-existing Slits and Cracks in Concrete"Proceedings of the 1^<st> fib Congress 2002. Session 13. 107-116 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tsuchiya, S., Mishima T. and Maekawa, K.: "Shear Failure Analysis of RC Beams Using High Strength Materials"Proceedings of the 1^<st> fib Congress 2002. Session 13. 207-216 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.TSUCHIYA and K.MAEKAWA: "Damage Index of Cross Section for RC Beam/Column Members Subjected to Multi-directional loading"Journal of Materials, Concrete Structures and Pavements. No.718/V-57. 45-57 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Song, H.W., You, D.W., Byun, K.J. and Maekawa, K.: "Finite Element Failure Analysis of Reinforced Concrete T-Girder Bridges"Engineering Structures Journal. 24 (2002). 151-162 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Dhakal, R.P. and Maekawa, K.: "Path-Dependent Cyclic Stress-Strain Relationship of Reinforcing Bar Including Buckling"Engineering Structures Journal. 24 (2002). 1383-1396 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hansapinyo, C., Pimanmas, A., Maekawa, K. and Chaisomphob, T.: "Proposed Model of Shear Deformation of Reinforced Concrete Beam after Diagonal Cracking"Journal of Materials, Concrete Structures and Pavements. No.725/V-58. 305-319 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hansapinyo,C.,Maekawa,K. and Chaisomphob,T.: "Behavior of Reinforced Concrete Beams Subjected to Bi-Axial Shear"Journal of Materials, Concrete Structures and Pavements. No.725/V-58. 321-331 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Soltani, M., An, X. and Maekawa, K.: "Computational Model for Post Cracking Analysis of RC Membrane Elements Based on Local Stress-Strain Characteristics"Engineering Structures Journal. 25 (2003). 993-1007 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Soltani, M., An, X. and Maekawa, K.: "Cracking Response and Local Stress Characteristics of RC Memberane Elements Reinforced with Welded Wire Mesh"Cement and Concrete Composites Journal. in press. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Choi, K. Y. and Maekawa, K.: "Bond Behavior in RC Tension Members Based on the Change of Concrete Fracture Characteristics with Temperature"Proceedings of the JCI. in press. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] El-Kashif, K. and Maekawa, K: "Computational Model for Time-Dependent Compressive Behavior Based on Plasticity and Fracturing Approach"Proceedings of the JCI. 25 (in press). (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.NAKARAI, Y.MIWA and K.MAEKAWA: "3D nonlinear analysis of spatially supported deep beams and its validation"Proceedings of the JCI. 25 (in press). (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Maekawa, K, Pimanmas, A. and Okamura,H.: "Nonlinear Mechanics of Reinforced Concrete"SPON Press, London. 800 (2003)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2004-04-14  

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