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Full-Text Articles in Engineering
Data Analysis Of Utah's I-80 And I-215 Bridges - For The Use In The Development Of Accelerated Bridge Construction Standards, Erik S. Rosvall
Data Analysis Of Utah's I-80 And I-215 Bridges - For The Use In The Development Of Accelerated Bridge Construction Standards, Erik S. Rosvall
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This study discusses five bridges on Utah's I-80 that were replaced in the summer of 2008 using Accelerated Bridge Construction methods. Each superstructure was built offsite and moved into place with the use of Self-Propelled Modular Transporters. The bridges were instrumented and monitored during the moving process to investigate the effects of moving an entire superstructure into place. Collected data was analyzed to find the level of stress each superstructure experienced during lifting, moving, and placement of each bridge.
The change in supporting conditions from when the superstructure was built to being transferred onto Self-Propelled Modular Transporters caused significant stress …
Ultimate Shear Capacity And Residual Prestress Force Of Full-Scale, Forty-One-Year-Old Prestressed-Concrete Girders, Parry Osborn
Ultimate Shear Capacity And Residual Prestress Force Of Full-Scale, Forty-One-Year-Old Prestressed-Concrete Girders, Parry Osborn
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The ultimate shear capacity of prestressed concrete beams is difficult to predict accurately, especially after being in service for an extended period of time. The Utah Department of Transportation asked researchers at Utah State University to experimentally determine the existing shear capacity of 41-year-old prestressed, decommissioned concrete bridge girders and then provide recommendations on how to increase that ultimate shear capacity. This thesis presents the research findings that relate to the existing shear capacity of the prestressed concrete girders.
Eight AASHTO Type II bridge girders were tested up to failure by applying external loads near the supports to determine their …