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2001 Fiscal Year Final Research Report Summary

Development of Analytical System for Damage and Deterioration of Concrete Structures

Research Project

Project/Area Number 11555117
Research Category

Grant-in-Aid for Scientific Research (B)

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

Principal Investigator

SHIMOMURA Takumi  Nagaoka Univ. of Tech., Faculty of Eng., Assoc. Prof., 工学部, 助教授 (40242002)

Co-Investigator(Kenkyū-buntansha) SATO Yasuhiko  Hokkaido Univ., Graduate School of Eng., Research Assoc., 大学院・工学研究科, 助手 (60261327)
SUGIYAMA Takafumi  Gunma Univ., Faculty of Eng., Assoc. Prof., 工学部, 助教授 (70261865)
NAKAMURA Hikaru  Yamanashi Univ., Faculty of Erg., Assoc. Prof., 工学部, 助教授 (60242616)
TOKUSHIGE Hidenobu  Akita Univ., Faculty of Eng. and Resource, Assist. Prof., 工学資源学部, 講師 (80291269)
KONNO Katsuyuki  Hokkaido Institute of Tech., Faculty of Eng., Assist. Prof., 工学部, 講師 (80290667)
Project Period (FY) 1999 – 2001
Keywordscorrosion of steel / damage analysis / dynamic nonlinear FE analysis / crack / material transport / gas permeability / freeze-thaw / cyclic load
Research Abstract

The objective of this research project is to develop an analytical system that can predict performance of concrete structures subjected to various load and environmental actions. Following results were obtained.
1) A computer program for numerical simulation of time-dependent performance change of RC bridges subjected to chloride attack was developed. It can predict effectiveness of some rehabilitation techniques as desalination method and retrofitting of CF sheet on service life of structures.
2) Material models in the computational system mentioned above were improved, which are material transport models in cracked concrete, corrosion model of reinforcing bar in concrete and tension stiffening model for corroded RC members.
3) 3D nonlinear FEM program that can simulate post peak behavior of various types of RC structures was developed.
4) A testing apparatus to examine gas permeability in cracked concrete was developed. Using this apparatus, resistance of damaged concrete against ingress of aggressive agent was investigated.
5) Constitutive models for concrete were improved to ensure a damage analysis of concrete structures under various conditions. A constitutive model for plane concrete under cyclic tensile and compressive stress was formulated. A constitutive model for plane concrete damaged by freeze-thaw action was formulated. A constitutive model for bonding behavior of CF sheet and concrete under static and cyclic load was formulated.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 下村 匠: "コンクリート構造物のライフスパンシミュレーション"土木学会誌. 86・12. 47-50 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Shimomura: "Service Life Prediction of Concrete Structures Subjected to Chloride Attack by Numerical Simulation"Life Prediction and Aging Management of Concrete Structures-edited by D.Naus, RILEM Proceedigs PRO 16. 25-34 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 松尾 洋: "鉄筋が腐食した鉄筋コンクリート部材の引張剛性"コンクリート工学年次論文集. 23・3. 1327-1332 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 八若幹彦: "3D-FEMによるRCスラブの押し抜きせん断破壊性状の解析"構造工学論文集. 47A. 1339-1346 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Sugiyama: "Development of a Permeability Cell for Concrete Subjected to Tensile Strain"Proceedings of 3rd International Conference on Concrete under Severe Conditions. 2. 1578-1585 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 佐藤公紀: "繰返し荷重を受けるコンクリートの変形性状について"コンクリート工学年次論文集. 23・3. 1063-1068 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T. Shimomura: "Lifespan simulation of concrete structures"Journal of the JSCE. Vol. 86, No. 12. 47-50 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Shimomura and K. Maruyama: "Service Life Prediction of Concrete Structures Subjected to Chloride Attack by Numerical Simulation"Life Prediction and Aging Management of Concrete Structures-edited by D. Naus, RILEM Proceedings. PRO 16. 25-34 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Matsuo et al.: "Tension Stiffness of RC Member with Corroded reinforcing bar"Proceedings of the JCI. Vol. 23, No. 3. 1327-1332 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Yawaka et al.: "Analysis of Punching Shear Failure of RC Slab by 3D-FEM"Journal of Structural Engineering. Vol. 47A. 1339-1346 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Sugiyama: "Development of a Permeability Cell for Concrete Subjected to Tensile Strain"Proceedings of 3rd International Conference on Concrete under Severe Condtions. Vol. 2. 1578-1585 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Sato et al.: "A Study on Deformational Characteristics of Concrete Under Fatigue Loading"Proceedings of the JCI. Vol. 23, No. 3. 1063-1069 (2001)

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

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Published: 2003-09-17  

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