声明
摘要
Abstract
1 Introduction
1.1 The source and significance of the topic
1.2.1 Foreign experience of strengthening
1.2.2 Experience of strengthening in Ukraine
1.3 Related research status
1.4 Main content of the research
2 Theoretical methodology of strengthening beams with composite materials CFRP
2.1 Background
2.2 Existing problems
2.3 General requirements for design
2.4 Work technology
2.4.1 Preparation of the substrate for the label
2.4.2 Preparation of glue(adhesive)
2.4.3 Cloth Sticker
2.4.4 Laminate sticker
3 Calculation of bearing capacity of rectangular reinforced concrete beam with double reinforcement
3.1 Output data for calculation
3.2 Calculation algorithm
3.2.1 Two-level diagram"strain-deformation"
3.2.2 Parabolic-rectangular diagram
3.2.3 Rectangular diagram
3.3 Conclusion
4 Analysis of reinforced concrete beam of rectangular section
4.1.2 Output data for calculation
4.1.3 FEA Technique for ANSYS Workbench
4.2 Load and evaluation of the results of calculating the stress-strain state of the beam
4.2.1 Generation of finite element grid
4.2.2 Loads and boundary conditions
4.3 Analysis of results of calculation of reinforced concrete beam
4.4 Conclusion
5 Analysis of reinforced concrete beam with composite materials(CFRP)
5.1 Prerequisites and initial data of reinforcement of bending reinforced concrete beams with composite materials
5.2.1 Specifying of materials properties
5.2.2 Setting the parameters of the beam in Design Modeler
5.2.3 Creating a layered composite material in Ansys Workbench using the Composite PrepPost module
5.2.4 Loads and Boundary Conditions
5.3 Analysis of the reinforced concrete beam calculation results
5.4 Calculation of the beam for strength and verification of design requirements
5.4.1 Output data for calculation
5.4.2 Calculation of the first limit state
5.4.3 Calculation of the second limit state(on fracture toughness)
5.4.4 Verification of design requirements
5.5 Calculation of the beam for strength and verification of design requirements
5.5.1 Output data for calculation
5.5.2 Calculation of the first limit state
5.5.3 Calculation of the second limit state(on fracture toughness)
5.5.4 Verification of design requirements
5.6 Conclusion
6 Conclusion
6.1 Concluson
6.2 Outlook
Acknowledgements
References