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Full-Text Articles in Engineering
Connection Strengthening Scheme For Coastal Bridges Under Hurricane Induced Surge And Wave Load Using C-Iepm, Li He
All ETDs from UAB
Considerable damage to the highway bridge system in the Gulf Coast area was observed during the Hurricane Katrina disaster, of which the primary failure mode, caused primarily by the storm-induced loading, is believed to be the superstructure-substructure connection failure which caused further unseating and drifting of the decks. A new Carbon-fiber Interfacial Epoxy-Polyurea Matrix (C-IEPM) composite is investigated as a potential retrofit option for vulnerable girder-to-cap connection-details in coastal highway bridges. Six scaled concrete girders were tested using a modified simulated storm surge and slamming wave force function, derived using regional maps for a 100-year return-period Hurricane Katrina. Two girders, …
Development Of Vacuum Assisted Resin Transfer Molding (Vartm) Method For The Repair And Strengthening Of Concrete Structures, Luis Ramos
All ETDs from UAB
Resin infusion, a method of fabricating fiber reinforced polymer (FRP), has been shown to produce a stronger FRP of more consistent quality than other methods. It is a preferred method of fabrication in industries like automotive, aerospace, and boat build-ing. In infrastructure, however, FRP is commonly applied by the hand layup method. Hand layup is known to produce FRP of questionable quality. Vacuum Assisted Resin Transfer Molding (VARTM), a form of resin infusion, can be used to apply externally bonded FRP to infrastructure to increase structural ca-pacity. Based on experience and knowledge in other industries, VARTM is expected to produce …