Nonlinear Analysis of Reinforced Concrete

1. Nonlinear Analysis of Reinforced Concrete Xuehui AN

2. Today’s Agenda • Review of last week’s lecture • Constitutive Models for RC (I) • Today’s Topic

3. General Methods Constitutive Models Experimental Results Modeling Concrete, Reinforcement, Bond, Crack Microstructure, bond Level 0 Modeling Modeling 1-D RC stress-strain Bond 1-D Stress RC Level 1 Modeling Modeling 2-D RC stress-strain 2-D Stress RC Plates Level 2 Modeling Modeling 2-D RC Members Force-Deformation 2-D RC Members Level 3

4. General MethodsSmeared Average Level 2 Level 3 Level 1 Level 0

5. General MethodsSmeared Average Level 2 Level 1 Level 3

6. Chapter 2 Reinforced Concrete Plate Element Model 1 Method of Modeling 2 Concrete Model Prior to Generation of Cracks (1) Elasto-Plastic and Fracture Model (2) Cracking Criteria 3 Modeling of Cracked Concrete (1) Modeling of Concrete under Tensile Stress (2) Modeling of Concrete under Compressive stress (3) Modeling of Concrete under Shear Stress (4) Inter-relation of Each Model 4 Modeling of Reinforcing Bar in Concrete 5 Verification

8. 1 Method of Modeling 2 Concrete Model Prior to Generation of Cracks (1) Elasto-Plastic and Fracture Model (2) Cracking Criteria 3 Modeling of Cracked Concrete (1) Modeling of Concrete under Tensile Stress (2) Modeling of Concrete under Compressive stress (3) Modeling of Concrete under Shear Stress (4) Inter-relation of Each Model 4 Modeling of Reinforcing Bar in Concrete 5 Verification

9. Strain ----Stress of RC = stress of concrete + stress of steel stress strain

10. 1 Method of Modeling 2 Concrete Model Prior to Generation of Cracks (1) Elasto-Plastic and Fracture Model (2) Cracking Criteria 3 Modeling of Cracked Concrete (1) Modeling of Concrete under Tensile Stress (2) Modeling of Concrete under Compressive stress (3) Modeling of Concrete under Shear Stress (4) Inter-relation of Each Model 4 Modeling of Reinforcing Bar in Concrete 5 Verification

17. Today’s Topic:Disaster Mitigation and Life Cycle Management • Input • Simulator (Model and Tool) • Society Engineering • Information Sharing • Business Motivation

18. Life-Cycle-Cost Life-Cycle-Management Construction Material study Structural performance study Lease Resale Management Insurance Cost Management Information Technology Environment Society Design Serving Geographic Geological Study Investigation Structural performance evaluation Recycle Maintaining / Repair Material study A Sustainable World

19. Disaster Mitigation and Life Cycle Management LCC＝Ci + Cm + Cl + Cr+ Ca LCC：生命周期总成本（Life Cycle Cost）； Ci ：初始成本（Initial Cost），建设费用； Cm ：维护管理成本(Maintaining Cost) ； Cl ：损失成本 （Losing Cost）； Cr ：维修加固成本(Repairing Cost)； Ca ：拆毁废弃成本(Abandon Cost)。 A Sustainable World

20. Disaster Mitigation and Life Cycle Management LCC＝Ci + Cm + Cl + Cr+ Ca LCC：生命周期总成本（Life Cycle Cost）； Ci ：初始成本（Initial Cost），建设费用； Cm ：维护管理成本(Maintaining Cost) ； Cl ：损失成本 （Losing Cost）； Cr ：维修加固成本(Repairing Cost)； Ca ：拆毁废弃成本(Abandon Cost)。 Performance Initial Performance Damage Maintaining Required Performance • Prediction of damage • Evaluation of maintaining effect Required Life Life Cycle A Sustainable World

21. Disaster Mitigation and Life Cycle Management LCC＝Ci + Cm + Cl + Cr+ Ca LCC：生命周期总成本（Life Cycle Cost）； Ci ：初始成本（Initial Cost），建设费用； Cm ：维护管理成本(Maintaining Cost) ； Cl ：损失成本 （Losing Cost）； Cr ：维修加固成本(Repairing Cost)； Ca ：拆毁废弃成本(Abandon Cost)。 Performance Initial Performance Damage Maintaining Earthquake disaster Repairing Required Performance • Prediction of earthquake damage • Prediction of earthquake losing • Evaluation of repairing effect Required Life Life Cycle A Sustainable World

22. Today’s Topic:Disaster Mitigation and Life Cycle Management • Input • Simulator (Model and Tool) • Society Engineering • Information Sharing • Business Motivation A Sustainable World

23. A Sustainable World

24. A Sustainable World RB: Rubber Bearing

25. A Sustainable World Steel Damper

26. A Sustainable World Lead Damper

27. A Sustainable World Isolating and damping effect