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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 20 of 26 for “"steel girder"”.
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Assessment of Passive Fire Protection on Steel-Girder Bridges
… materials, within the context of shielding steel-girder bridges against severe fire effects. A steel-girder bridge has been selected for study, and a high-resolution finite element model has been formed based on the corresponding bridge structural drawings. Temperature-dependent structural …
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Evaluating the Effects of Shored Construction on Steel Girder Composite Bridges
<p>Steel composite girder bridges provide economic advantages and higher load-carrying capacity than non-composite alternatives. Over the years, a conventional sequence of un-shored construction for steel girder composite bridges has been developed. There is an alternative construction sequence, …
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Elastic and ultimate behaviour of skew composite slab-on-steel girder bridges.
… skew composite concrete slab on compact steel girder bridges. Detailed parametric studies were conducted to find the effect of several parameters upon the load distribution characteristics in skew bridges at different stages of loading. In this work, both the nonlinear finite element …
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Bridge maintenance to enhance corrosion resistance and performance of steel girder bridges
… the several factors that affect the condition of steel highway bridges, corrosion is identified as the main problem. In the USA corrosion is the primary cause of structurally deficient steel bridges.</p> <p>The benefit of regular high-pressure superstructure washing and spot painting were …
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A method for the fatigue evaluation of riveted steel girder railway bridges
… consists of railway bridges of riveted steel girder type construction. There is concern about this population of bridges because of the nature of today's current loading environment and the fact that many of these bridges will attain or exceed their projected design lives in the near …
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Implementing a Long-Term Bridge Monitoring Strategy for a Composite Steel Girder Bridge
… on a three-span, simply supported composite steel girder bridge carrying three lanes of highway traffic. It has been a part of the University of Connecticut and Connecticut Department of Transportation monitoring network since 2004 and is fitted with 20 strain gauges located at midspan at the …
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Impact of Environmental Classification on Steel Girder Bridge Elements Using Bridge Inspection Data
… regions on service life estimates of steel girder bridge component (concrete deck) and element/protective system (girder paint) using bridge inspection field data collected by bridge inspectors. Further, existing deterioration models are incapable of using the non-numeric element level …
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Thermal Gradients in Southwestern United States and the Effect on Bridge Bearing Loads
… bridge was a two-span concrete posttensioned box girder bridge in Las Vegas, the second bridge was a two-span composite steel girder bridge in Reno.Heat flow analysis was conducted using meteorological data from weather stations in Northern and Southern Nevada to evaluate the AASHTO LRFD thermal …
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SuperLoad Crossing of Millard Avenue Bridges Over Duck Creek and CSX Railroad
… Duck Creek is a three span straight slab-on- steel girder bridge and the CSX is a horizontally curved slab-on- steel girder bridge having five continuous spans. The horizontal curve of the steel super structure is achieved by kinking the girder lines at the field splices.The tasks requested to …
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Live load distribution factors for multi-span girder bridges with plank decking subjected to farm vehicles
… this study, hence, two bridge types, including steel girder bridges with plank decking and timber girder bridges with plank decking, were selected to determine LLDFs of the bridges under the effects of farm vehicles. The procedure adopted include the AASHTO code-specified formulae, field …
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Testing and Analysis of a Fiber-Reinforced Polymer (FRP) Bridge Deck
… The structural performance of the FRP-on-steel-superstructure system was examined in the laboratory and field under service load. Tests results confirmed the following findings: (1) the clip-type of panel-to-stringer connection provides little composite action as expected, which fulfilled …
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The Viability of Steel-Concrete Composite Girder Bridges with Continuous Profiled Steel Deck
… short-span, simply supported composite steel girder bridges. However, because shear studs can only be welded to the girder through the steel deck at rib locations, the number of shear stud locations is limited to the number of ribs in the shear span while the spacing of the shear studs …
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Cost-Savings of Implementing Site-Specific Ground Motion Response Analysis in Design of Mississippi Embayment Bridges
… of the short-period ground motions. The steel girder pile-bent bridge, originally designed using the AASHTO general seismic design procedure, was redesigned using the updated seismic demands estimated from SSGMRA. A cost-savings analysis was then conducted to determine the potential …
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Application of a gradient-based algorithm to structural optimization
… design problem through the optimization of a steel girder, resulting in a hybrid scheme featuring a truss stiffener. Throughout the study, emphasis was laid on the practical computer implementation of the gradient-based algorithm in interaction with structural analysis tools.
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Computational Study of Highway Bridges Structural Response Exposed to a Large Fire Exposure
… the thermo-structural response of a single steel girder-concrete deck composite assembly to different local, non-uniform fires and uniform standard furnace fire exposures. The steel girder-concrete deck composite assembly was selected since it is a common bridge design. Following this, a …
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Assessment of Foundation Rocking Behavior in Reducing the Seismic Demand on Horizontally Curved Bridges
… two-fifth scale, three-span horizontally curved steel plate girder bridge experiment was conducted on the shake table array in the Large-Scale Structures Laboratory at the University of Nevada, Reno. The bridge consisted of two abutments and two single column hammer-head piers. In the study, the …
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Investigations into Flange Surface Friction Effects on Shear Stud Load Transfer in Composite Bridge Girders
… achieved through headed shear studs welded tothe steel girder flange and embedded in the concrete deck. Current AASHTO provisions for estimating demands on shear studs during service-level loading consider only bearing load transfer, neglecting adhesion bonding and friction load transfer between …
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