Reforzamiento estructural de pilas mediante encamisado con materiales compuestos FRP para la protección ante impactos vehiculares en el puente gemelo, Juján–Babahoyo
This research aimed to design a structural strengthening proposal for the piers of the Twin Bridge, located on the Juján–Babahoyo road, through jacketing with fiber reinforced polymer (FRP) composites, in order to improve their performance against vehicular impacts. The study was developed under a m...
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| Format: | bachelorThesis |
| Language: | spa |
| Published: |
2025
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| Subjects: | |
| Online Access: | http://repositorio.ulvr.edu.ec/handle/44000/7993 |
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Add Tag | Summary: | This research aimed to design a structural strengthening proposal for the piers of the Twin Bridge, located on the Juján–Babahoyo road, through jacketing with fiber reinforced polymer (FRP) composites, in order to improve their performance against vehicular impacts. The study was developed under a mixed-methods approach, with a descriptive and explanatory scope, supported by documentary review, structural inspection, expert surveys and interviews, as well as numerical modeling of impact scenarios. The analysis population consisted of the bridge's four main piers, which included the input of ten specialists in structural engineering and bridge rehabilitation. The results showed that the piers, in their current state, are vulnerable to lateral impacts from heavy vehicles with critical stress concentrations and potential failure modes such as bending and shear. Structural modeling demonstrated that the incorporation of FRP jacketing increases energy absorption capacity by an average of 45% and improves ductility, which in turn helps reduce the risk of local collapse. A CFRP jacketing system in a full perimeter configuration and two layers was selected as the technical proposal, strictly following ACI 440 and AASHTO standards. The design incorporates strength, durability, and constructability criteria adapted to the Ecuadorian context. An implementation plan was established with preparation, execution, inspection, and maintenance phases, accompanied by safety and sustainability guidelines to ensure long-term viability. The research contributes to technically improving the existing structure using composite materials in Ecuador, offering an innovative and replicable alternative for protecting and extending the lifespan of critical road infrastructure. |
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