Abstract
Two 35m prestressed concrete T beams in a highway reconstruction project are destructively tested, one is unstrengthened and the other is strengthened by HB-FRP. Construction technology of HBFRP (Hybrid Bonded FRP) strengthening bridge engineering is presented. Considering the nonlinear material effect, refined finite element models are set up. The destructive test results show that: When the beam is damaged, steel fasteners on CFRP plates (length 33.02m) at the middle span of the span are damaged. The numerical simulation results show that the crack resistance of the beams strengthened with HB-FRP is not improved, but the ultimate capacity is increased by 6.0%. The crack resistance of the beams strengthened with PHB-FRP (Prestressed Hybrid Bonded FRP) is further increased by 11%. The ultimate capacity is increased by 9.0%.
| Original language | English |
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| Title of host publication | APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures |
| Editors | Scott T. Smith, Tao Yu, Dilum Fernando, Zhenyu Wang |
| Publisher | APFIS Conference Series |
| ISBN (Electronic) | 9780648752899 |
| Publication status | Published - 1 Dec 2019 |
| Externally published | Yes |
| Event | 7th Asia-Pacific Conference on FRP in Structures, APFIS 2019 - Brisbane, Australia Duration: 10 Dec 2019 → 13 Dec 2019 |
Publication series
| Name | APFIS 2019 Proceedings - 7th Asia-Pacific Conference on FRP in Structures |
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Conference
| Conference | 7th Asia-Pacific Conference on FRP in Structures, APFIS 2019 |
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| Country/Territory | Australia |
| City | Brisbane |
| Period | 10/12/19 → 13/12/19 |
Bibliographical note
Publisher Copyright:© APFIS 2019. All right reserved.
Keywords
- Bridge engineering
- Bridge reinforcement
- HB-FRP
- Numerical simulation
- Prestressed concrete T beam