2020 Integrated modeling of reinforced concrete structure

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Academic unit or major
Graduate major in Civil Engineering
Instructor(s)
Chijiwa Nobuhiro 
Course component(s)
Lecture
Mode of instruction
ZOOM
Day/Period(Room No.)
Mon5-6(Zoom)  
Group
-
Course number
CVE.E431
Credits
2
Academic year
2020
Offered quarter
3-4Q
Syllabus updated
2020/9/18
Lecture notes updated
-
Language used
Japanese
Access Index

Course description and aims

In this course, the instructor introduces nonlinear material models to describe the material behavior of concrete based on the hydration - micro structure development - mass transfer model, nonlinear structure models to describe the mechanical behavior of reinforced concrete based on the smeared crack model, and material-structure integrating model by coupling the aforementioned models.
In order to maintain the performance of reinforced concrete structures or design reinforced concrete structures more rationally, it is important to understand the structural behavior of reinforced concrete based on the characteristics of concrete material. The aim of this course is understanding the character of reinforced concrete through modeling.

Student learning outcomes

By the end of this course, students will be able to:
1) Explain the material behavior of concrete as porous material with the hydration-micro structure development- mass transfer integrated models.
2) Explain the mechanical behavior of the concrete based on smeared crack model.
3) Explain the impact of nano-micro meter scale material behavior on the structural behavior of structural system based on material-structure integrated model.

Keywords

Reinforced concrete, Material-structure integrated analysis, Hydration - micro structure development - mass transfer integrated model, Smeared crack model, Rheology model, Deterioration

Competencies that will be developed

Specialist skills Intercultural skills Communication skills Critical thinking skills Practical and/or problem-solving skills

Class flow

The final examination will be held at the end of the course. You are requested to submit a short report at the end of every class.

Course schedule/Required learning

  Course schedule Required learning
Class 1 Introduction Understand latest analysis of reinforced concrete structure.
Class 2 Hydration model Understand chemical reaction model of hydration.
Class 3 Basis of pore-structure development and mass transportation model Understand the basic concept of the concrete as a porous material.
Class 4 Pore-structure development Understand the pore-structure development model to describe the behaviour as a porous material.
Class 5 Mass transportation model Understand the mass transportation model to describe the behaviour as a porous material.
Class 6 Carbonation model Understand the mechanism of carbonation and its modelling.
Class 7 Chloride ion transportation model Understand basic knowledge of the chloride ion transportation in porous medium.
Class 8 Oxygen transportation model and corrosion model Understand the oxygen transportation in porous medium and electrochemical modelling of corrosion.
Class 9 Modelling of cracks in reinforced concrete Understand the modelling concept for cracks in reinforced concrete.
Class 10 Elasto-plastic model for concrete Understand the elasto-plastic model of reinforced concrete to describe its nonlinear behaviour.
Class 11 Modelling of cracked concrete Understand the modelling of cracked concrete.
Class 12 Shear transfer model for concrete Understand the shear transfer on the concrete crack surface.
Class 13 Rebar model in reinforced concrete Understand the rebar model in the reinforced concrete.
Class 14 Time-dependent models (creep, rebar corrosion, fatigue) Understand time-dependent models to simulate reinforced concrete structures in service.

Out-of-Class Study Time (Preparation and Review)

To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.

Textbook(s)

Nonlinear Mechanics of Reinforced Concrete, K. Maekawa, A. Pimanmas and H. Okamura, SPON Press, 2003.
Multi-Scale Modeling of Structural Concrete, K. Maekawa, T. Ishida and T. Kishi, Taylor and Francis, 2008.

Reference books, course materials, etc.

None

Assessment criteria and methods

Assessments are made in this course according to the following criteria: 30% for short reports in every class, 70% for the final examination (100% in total).

Related courses

  • CVE.E201 : Concrete Engineering
  • CVE.E301 : Structural Concrete
  • CVE.E401 : Mechanics of Structural Concrete
  • CVE.N231 : Concrete and Geotechnical Engineering Laboratory I
  • CVE.N331 : Concrete and Geotechnical Engineering Laboratory II

Prerequisites (i.e., required knowledge, skills, courses, etc.)

No prerequisites are necessary, but enrollment in the related courses is desirable.

Other

None

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