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LRFD Orthotropic Plate Model for Live Load Moment in Filled Grid Decks
Publisher: American Society of Civil Engineers
Abstract: Due to the orthogonal elastic properties and significant two-way bending action, orthotropic plate theory may best be used to describe the behavior of concrete filled grid bridge decks. The current AASHTO LRFD specification ...
Orthotropic Plate Model for Estimating Deflections in Filled Grid Decks
Publisher: American Society of Civil Engineers
Abstract: Concrete filled grid bridge decks exhibit orthogonal elastic properties and significant two-way bending action enabling orthotropic plate theory to determine structural response for these elements. Current American Association ...
Prefabricated Steel Stair Performance under Combined Seismic and Gravity Loads
Publisher: American Society of Civil Engineers
Abstract: Tests were performed on full-size prefabricated steel stair assemblies to assess seismic interstory drift response combined with factored gravity loads. The stair assemblies were production-run units of a standard system ...
Behavior of Composite Bridge Decks with Alternative Shear Connectors
Publisher: American Society of Civil Engineers
Abstract: An experimental study of composite bridge decks with alternative shear connectors has been performed. The alternative shear connector consists of concrete filled holes located in the webs of grid main bars and friction ...
Fatigue of Diagonally Cracked RC Girders Repaired with CFRP
Publisher: American Society of Civil Engineers
Abstract: Fiber-reinforced polymers (FRP) are becoming more widely used for repair and strengthening of conventionally reinforced concrete (RC) bridge members. Once repaired, the member may be exposed to millions of load cycles ...
Field Testing and Analysis of CRC Deck Girder Bridges
Publisher: American Society of Civil Engineers
Abstract: This paper presents findings of field tests and analysis of two conventionally reinforced concrete (CRC) deck girder bridges designed in the 1950s. The bridges are in-service and exhibit diagonal cracks. Stirrup strains ...
Influence of Active Confinement on Behavior and Strength of Reinforcing Steel Anchorages
Publisher: American Society of Civil Engineers
Abstract: The strength and behavior of large-diameter reinforcing steel bars with straight anchorages were experimentally investigated. The anchorage details are typical of monolithic girder-column connections used in bridges and ...
Analytical Solutions to General Orthotropic Plates under Patch Loading
Publisher: American Society of Civil Engineers
Abstract: Orthotropic plates are widely used in bridge deck systems. However, these are not commonly treated as such within design specifications, and semianalytical solutions are not presently available for all deck types. This ...
Development of Bridge Rating Applications Using OpenSees and Tcl
Publisher: American Society of Civil Engineers
Abstract: A bridge rating application is developed using the Tool Command Language (Tcl) scripting language in conjunction with the OpenSees finite-element software framework. Fully programmable and string based, Tcl is ideal for ...
Performance of Highway Bridge Girder Anchorages under Simulated Hurricane Wave Induced Loads
Publisher: American Society of Civil Engineers
Abstract: Many bridges along the Gulf Coast of the United States were damaged by hurricanes, especially in the 2004 and 2005 hurricane seasons. Many more bridges are susceptible to similar damage. This research examines the structural ...