| Table | Card | RUSMARC | |
|
|
Allowed Actions: Read Download (0.9 Mb) Group: Anonymous Network: Internet |
Annotation
This study investigates the impact of carbon fiber reinforced polymers (CFRP) composite to concrete bond strength degradation on the flexural response of CFRP strengthened reinforced concrete (RC) beams by using nonlinear finite element analysis (NLFEA). After reasonable validation of NLFEA simulated beams with the experimental test results of companion beams, NLFEA was expanded to provide a parametric study of twenty-two beams that correlates the ultimate flexural strength of RC beams to degradation in concrete compressive strength, degradation in bond strength, CFRP bond surface with concrete, and the number of layers and the size effect. The results show that the increase of CFRP-to-concrete contact area, concrete strength degradation, and epoxy bond strength degradation percentage had a significant impact on ultimate load capacity, ultimate deflection, stiffness, and energy absorption. Finally, new guidelines were proposed for designers and researchers to find the reduction in concrete strength as well as CFRP-to-concrete contact area at any ultimate load capacity of RC beams.
Document access rights
| Network | User group | Action | ||||
|---|---|---|---|---|---|---|
| ILC SPbPU Local Network | All |
|
||||
|
Internet | All |
|
Table of Contents
- Behavior of RC beams with different bond strength
- 1. Introduction
- 2. Method
- 2.1. Design constants
- 2.2. Elements
- 2.3. Materials
- 2.4. Models
- 3. Results and Discussion
- 3.1. Validation of models
- 3.2. Effect of CFRP contact area
- 3.3. Effect of concrete strength degradation
- 3.4. Effect of epoxy bond strength degradation
- 4. Conclusions
Included in
Usage statistics
|
|
Access count: 148
Last 30 days: 8 Detailed usage statistics |