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Full-Text Articles in Engineering
Evaluation And Seismically Isolated Substructure Redesign Of A Typical Multi-Span Pre-Stressed Concrete Girder Highway Bridge, Brian D. Richins
Evaluation And Seismically Isolated Substructure Redesign Of A Typical Multi-Span Pre-Stressed Concrete Girder Highway Bridge, Brian D. Richins
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Seismic considerations greatly influence the lateral and vertical design of a structure, often necessitating larger elements than would otherwise be required. Seismic isolation greatly reduces the demands on a structure due to earthquake loading, allowing the use of smaller, more efficient members and foundations. This case study illustrates the theory and procedure of evaluating the response of a recently built multi-span highway bridge using the most recent (2009) AASHTO code. Based on this response, an equivalent structure was designed to incorporate a seismic isolation system, and the substructure of the isolated bridge redesigned to meet the reduced demands more economically. …
Performance Of Transverse Post-Tensioned Joints Subjected To Negative Bending And Shear Stresses On Full Scale, Full Depth, Precast Concrete Bridge Deck System, Kayde Steven Roberts
Performance Of Transverse Post-Tensioned Joints Subjected To Negative Bending And Shear Stresses On Full Scale, Full Depth, Precast Concrete Bridge Deck System, Kayde Steven Roberts
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Accelerated bridge construction has quickly become the preferred method for the Utah Department of Transportation (UDOT) as well as many other DOT’s across the United States. This type of construction requires the use of full depth precast panels for the construction of the bridge deck. The segmented deck panels produce transverse joints between panels and have come to be known as the weakest portion of the deck. Cracking often occurs at these joints and is reflected through the deck overlay where water accesses and begins corrosion of the reinforcement and superstructure below. For this reason post-tensioning of the deck panels …