Flexural Performance of RC Beams with Hybrid Combination of Conventional FRP and PET Laminates
A Master of Science thesis in Civil Engineering by Ahmed Yousef Al Rashed entitled, “Flexural Performance of RC Beams with Hybrid Combination of Conventional FRP and PET Laminates”, submitted in March 2023. Thesis advisor is Dr. Rami A. Hawileh and thesis co-advisor is Dr. Jamal A. Abdallah. Soft co...
محفوظ في:
| المؤلف الرئيسي: | |
|---|---|
| التنسيق: | doctoralThesis |
| منشور في: |
2023
|
| الموضوعات: | |
| الوصول للمادة أونلاين: | http://hdl.handle.net/11073/25333 |
| الوسوم: |
إضافة وسم
لا توجد وسوم, كن أول من يضع وسما على هذه التسجيلة!
|
| _version_ | 1864513444822122496 |
|---|---|
| author | Al Rashed, Ahmed Yousef |
| author_facet | Al Rashed, Ahmed Yousef |
| author_role | author |
| dc.contributor.none.fl_str_mv | Hawileh, Rami Abdalla, Jamal |
| dc.creator.none.fl_str_mv | Al Rashed, Ahmed Yousef |
| dc.date.none.fl_str_mv | 2023-09-05T05:01:46Z 2023-09-05T05:01:46Z 2023-03 |
| dc.format.none.fl_str_mv | application/pdf application/pdf |
| dc.identifier.none.fl_str_mv | 35.232-2023.31 http://hdl.handle.net/11073/25333 |
| dc.language.none.fl_str_mv | en_US |
| dc.subject.none.fl_str_mv | Hybridization Strengthening Flexure FRP Ductility Load capacity U-wraps Anchores CFRP GFRP PET FRP |
| dc.title.none.fl_str_mv | Flexural Performance of RC Beams with Hybrid Combination of Conventional FRP and PET Laminates |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/doctoralThesis |
| description | A Master of Science thesis in Civil Engineering by Ahmed Yousef Al Rashed entitled, “Flexural Performance of RC Beams with Hybrid Combination of Conventional FRP and PET Laminates”, submitted in March 2023. Thesis advisor is Dr. Rami A. Hawileh and thesis co-advisor is Dr. Jamal A. Abdallah. Soft copy is available (Thesis, Completion Certificate, Approval Signatures, and AUS Archives Consent Form). |
| format | doctoralThesis |
| id | aus_379efa0c12cb93bda65b06530a5f7935 |
| identifier_str_mv | 35.232-2023.31 |
| language_invalid_str_mv | en_US |
| network_acronym_str | aus |
| network_name_str | aus |
| oai_identifier_str | oai:repository.aus.edu:11073/25333 |
| publishDate | 2023 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Flexural Performance of RC Beams with Hybrid Combination of Conventional FRP and PET LaminatesAl Rashed, Ahmed YousefHybridizationStrengtheningFlexureFRPDuctilityLoad capacityU-wrapsAnchoresCFRPGFRPPET FRPA Master of Science thesis in Civil Engineering by Ahmed Yousef Al Rashed entitled, “Flexural Performance of RC Beams with Hybrid Combination of Conventional FRP and PET Laminates”, submitted in March 2023. Thesis advisor is Dr. Rami A. Hawileh and thesis co-advisor is Dr. Jamal A. Abdallah. Soft copy is available (Thesis, Completion Certificate, Approval Signatures, and AUS Archives Consent Form).Externally bonded fiber-reinforced polymer (FRP) composites are widely used to strengthen reinforced concrete (RC) beams. However, due to composites' brittleness, strengthened beams usually fail by premature brittle debonding of the FRP laminates. Delaying this failure mode enhances the beams’ flexural capacity and ductility. This work aims to study the effect of balancing traditional high-strength FRPs with polyethylene terephthalate (PET-FRP) laminates. Unlike conventional FRPs, PET-FRP has a bilinear stress-strain relationship and ruptures at large strains exceeding 7%. However, it has lower elastic modulus and tensile strength than conventional FRPs. To compensate for this drawback, the effect of hybridizing carbon-FRP (CFRP) and glass-FRP (GFRP) with PET-FRP laminates is examined. In addition, to enhance the effectiveness of the strengthening systems and delay FRP debonding, the effect of anchoring using end U-wraps is explored. Twenty-seven RC beams, strengthened with different combinations of layers and stacking sequences of hybrid CFRP, GFRP, and PET-FRP laminates and with and without end U-wrap anchors, were tested to failure. The results of the strengthened anchored beams were compared to the un-anchored strengthened beams and un-strengthened control beams. Results showed that hybrid combinations of PET, CFRP, and GFRP laminates provided enhanced flexural performance over CFRP and GFRP-strengthened specimens. The enhancement depended on the number of strengthening sheets, type of FRPs, stacking sequence, and presence of anchors. The enhancement in the load-carrying capacity and ductility ranged from 23% to 70% and -17% to 92%, respectively. Results proved that side anchors effectively prevented premature failure due to debonding or delamination. The highest load-carrying capacity and ductility enhancement were exhibited by the PGP anchored specimen. The load-carrying capacity of the strengthened beams was predicted using the ACI 440.2R-17 and CEB-FIB design guidelines. It can be concluded that combining PET with CFRP and GFRP laminates could provide a robust strengthening system that enhances both the strength and ductility of RC beams in flexure.College of EngineeringDepartment of Civil EngineeringMaster of Science in Civil Engineering (MSCE)Hawileh, RamiAbdalla, Jamal2023-09-05T05:01:46Z2023-09-05T05:01:46Z2023-03info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfapplication/pdf35.232-2023.31http://hdl.handle.net/11073/25333en_USoai:repository.aus.edu:11073/253332025-06-26T12:36:48Z |
| spellingShingle | Flexural Performance of RC Beams with Hybrid Combination of Conventional FRP and PET Laminates Al Rashed, Ahmed Yousef Hybridization Strengthening Flexure FRP Ductility Load capacity U-wraps Anchores CFRP GFRP PET FRP |
| status_str | publishedVersion |
| title | Flexural Performance of RC Beams with Hybrid Combination of Conventional FRP and PET Laminates |
| title_full | Flexural Performance of RC Beams with Hybrid Combination of Conventional FRP and PET Laminates |
| title_fullStr | Flexural Performance of RC Beams with Hybrid Combination of Conventional FRP and PET Laminates |
| title_full_unstemmed | Flexural Performance of RC Beams with Hybrid Combination of Conventional FRP and PET Laminates |
| title_short | Flexural Performance of RC Beams with Hybrid Combination of Conventional FRP and PET Laminates |
| title_sort | Flexural Performance of RC Beams with Hybrid Combination of Conventional FRP and PET Laminates |
| topic | Hybridization Strengthening Flexure FRP Ductility Load capacity U-wraps Anchores CFRP GFRP PET FRP |
| url | http://hdl.handle.net/11073/25333 |