摘要 | 第4-5页 |
Abstract | 第5页 |
1 Introduction | 第8-17页 |
1.1 The source and significance of the topic | 第8-9页 |
1.2 Research status in Ukraine and abroad | 第9-13页 |
1.2.1 Foreign experience of strengthening | 第9-12页 |
1.2.2 Experience of strengthening in Ukraine | 第12-13页 |
1.3 Related research status | 第13-15页 |
1.4 Main content of the research | 第15-17页 |
2 Theoretical methodology of strengthening beams with composite materials CFRP | 第17-26页 |
2.1 Background | 第17页 |
2.2 Existing problems | 第17-18页 |
2.3 General requirements for design | 第18-21页 |
2.4 Work technology | 第21-26页 |
2.4.1 Preparation of the substrate for the label | 第21-22页 |
2.4.2 Preparation of glue (adhesive) | 第22页 |
2.4.3 Cloth Sticker | 第22-24页 |
2.4.4 Laminate sticker | 第24-26页 |
3 Calculation of bearing capacity of rectangular reinforced concrete beam with doublereinforcement | 第26-39页 |
3.1 Output data for calculation | 第26-27页 |
3.2 Calculation algorithm | 第27-38页 |
3.2.1 Two-level diagram "strain-deformation" | 第27-31页 |
3.2.2 Parabolic-rectangular diagram | 第31-35页 |
3.2.3 Rectangular diagram | 第35-38页 |
3.3 Conclusion | 第38-39页 |
4 Analysis of reinforced concrete beam of rectangular section | 第39-51页 |
4.1 Creation of a three-dimensional model of bending reinforced concrete beams | 第39-45页 |
4.1.1 Setting goals and objectives | 第39页 |
4.1.2 Output data for calculation | 第39-40页 |
4.1.3 FEA Technique for ANSYS Workbench | 第40-45页 |
4.2 Load and evaluation of the results of calculating the stress-strain state of the beam | 第45-48页 |
4.2.1 Generation of finite element grid | 第45-47页 |
4.2.2 Loads and boundary conditions | 第47-48页 |
4.3 Analysis of results of calculation of reinforced concrete beam | 第48-50页 |
4.4 Conclusion | 第50-51页 |
5 Analysis of reinforced concrete beam with composite materials (CFRP) | 第51-77页 |
5.1 Prerequisites and initial data of reinforcement of bending reinforced concrete beamswith composite materials | 第51页 |
5.2 Method of beam reinforcement with CFRP composite materials in ANSYS | 第51-60页 |
5.2.1 Specifying of materials properties | 第51-54页 |
5.2.2 Setting the parameters of the beam in Design Modeler | 第54页 |
5.2.3 Creating a layered composite material in Ansys Workbench using the CompositePrep Post module | 第54-59页 |
5.2.4 Loads and Boundary Conditions | 第59-60页 |
5.3 Analysis of the reinforced concrete beam calculation results | 第60-62页 |
5.4 Calculation of the beam for strength and verification of design requirements | 第62-72页 |
5.4.1 Output data for calculation | 第62-63页 |
5.4.2 Calculation of the first limit state | 第63-65页 |
5.4.3 Calculation of the second limit state (on fracture toughness) | 第65-72页 |
5.5 Calculation of the beam for strength and verification of design requirements | 第72-76页 |
5.5.1 Output data for calculation | 第72页 |
5.5.2 Calculation of the first limit state | 第72-74页 |
5.5.3 Calculation of the second limit state (on fracture toughness) | 第74-75页 |
5.5.4 Verification of design requirements | 第75-76页 |
5.6 Conclusion | 第76-77页 |
6 Conclusion | 第77-80页 |
6.1 Concluson | 第77-78页 |
6.2 Outlook | 第78-80页 |
Acknowledgements | 第80-81页 |
References | 第81-83页 |