Shear Strengthening of Reinforced Concrete Beams Using Carbon-Fiber-Reinforced Polymer Laminates
| Autor: | Cheng-Tzu Thomas Hsu, Zhichao Zhang |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Carbon fiber reinforced polymer
Materials science Serviceability (structure) business.industry Mechanical Engineering Building and Construction Structural engineering Fibre-reinforced plastic Flexural strength Shear (geology) Mechanics of Materials Ceramics and Composites Shear strength Composite material business Reinforcement Beam (structure) Civil and Structural Engineering |
| Zdroj: | Journal of Composites for Construction. 9:158-169 |
| ISSN: | 1943-5614 1090-0268 |
| DOI: | 10.1061/(asce)1090-0268(2005)9:2(158) |
| Popis: | Shear failure is catastrophic and occurs usually without advance warning; thus it is desirable that the beam fails in flexure rather than in shear. Many existing reinforced concrete (RC) members are found to be deficient in shear strength and need to be repaired. Externally bonded reinforcement such as carbon-fiber-reinforced polymer (CFRP) provides an excellent solution in these situations. To investigate the shear behavior of RC beams with externally bonded CFRP shear reinforcement, 11 RC beams without steel shear reinforcement were cast at the concrete laboratory of the New Jersey Institute of Technology. After the beams were kept in the curing room for 28 days , carbon-fiber strips and fabrics made by Sika Corp. were applied on both sides of the beams at various orientations with respect to the axis of the beam. All beams were tested on a 979 kN (220 kips) MTS testing machine. Results of the test demonstrate the feasibility of using an externally applied, epoxy-bonded CFRP system to restore or increas... |
| Databáze: | OpenAIRE |
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