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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"prestressed bridge girders"”.
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Self-Compacting Concrete for Prestressed Bridge Girders
… have been hesitant to allow SCC for precast bridge girder applications. This study was initiated with the intent to investigate the viability of using SCC developed at local precast plants with locally available materials for the construction of precast prestressed SCC girders in the State of …
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A Compilation of Research on Self-Consolidating Concrete for Prestressed Bridge Girders
… can be utilized to improve fabrication of prestressed girders. SCC has been used in the precast industry with a satisfactory performance. This was achieved by reducing fabrication time, decreasing health hazards due to excessive noise, and a much better finishing on the surface of the …
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Repair of Impact-Damaged Prestressed Bridge Girders Using Strand Splices and Fiber-Reinforced Polymer
… focusing on repair techniques for impact damaged prestressed bridge girders. The investigation included evaluation of the repair installation and flexural strength of four AASHTO Type III girders that were intentionally damaged and repaired. In addition, nonlinear finite element modeling was used …
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Repair of Impact-Damaged Prestressed Bridge Girders Using Strand Splices and Fabric Reinforced Cementitious Matrix
… thesis investigates the repair of impact-damaged prestressed concrete bridge girders with strand splices and fabric-reinforced cementitious matrix systems, specifically for repair of structural damage to the underside of an overpass bridge girder due to an overheight vehicle collision. Collision …
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Analytical Modeling of the Repair Impact-Damaged Prestressed Concrete Bridge Girders
Highway bridges in the United States are frequently damaged by overheight vehicle collisions. The increasing number of prestressed concrete bridges indicates that the probability of such bridges being impacted by overheight vehicles has increased. This thesis, sponsored by the Virginia Center for …
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Transfer and Development Lengths of Steel Strands in Full-Scale Prestressed Self-Consolidating Concrete Bridge Girders
… has limited the material’s application in prestressed members. A keen understanding of SCC’s bond strength, including its impact on transfer and development lengths in prestressed members, is essential to safely implement SCC in prestressed design. The Illinois Department of Transportation …
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Structural Performance of High Strength Lightweight Concrete Pretensioned Bridge Girders
The use of high compressive strengths in prestressed bridge girders can lower costs by allowing for longer spans, increased girder spacing, and smaller cross-sections. If high strength lightweight concrete (HSLWC) is used, these advantages are further enhanced due to the corresponding reduction in …
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Continuity development between precast beams using prestressed slabs, and its effect on flexure and shear
Development of continuity between precast prestressed bridge girders by post-tensioning the insitu top slab In the regions of hogging moment is a relatively new technique which forms the basis for this research study. Compared to the more conventional method of using reinforcing steel in the slab …
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Flexural Behavior of CFRP-Pretensioned Girders
Highway bridge beams are subjected to aggressive environments, temperature fluctuations, and a large number of loading cycles. The combination of these factors can result in deterioration of highway bridge beams’ serviceability and strength. Beams prestressed with steel are susceptible to corrosion …