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  1. Cyclic Behavior of As-built and CFRP Wrap Retrofitted Square Reinforced Concrete Bridge Columns

    15 May 2014 | Publications | Contributor(s): Selamawit Mehary, Peter Dusicka, Ramiro Bazaez

    Cyclic Behavior of As-built and CFRP Wrap Retrofitted Square Reinforced Concrete Bridge ColumnsThe seismic performances of full-scale, square cross section, reinforced-concrete bridge columns were experimentally studied. The specimens and the laboratory arrangement were intended to model typical...

  2. New Design Detail for Ductile Steel Bridge Substructure Systems

    15 May 2014 | Publications | Contributor(s): Mervyn Kowalsky, James Nau, Steven Fulmer, Elmer Marx

    New Design Detail for Ductile Steel Bridge Substructure SystemsSteven Fulmer, Mervyn Kowalsky, James Nau, Elmer MarxThis paper discusses the outcome of a research program supported by the Alaska Department of Transportation and Alaska University Transportation Center on the seismic behavior of...

  3. A New Look at Strain Limits and Plastic Hinge Lengths for Reinforced Concrete Bridge Columns

    15 May 2014 | Publications | Contributor(s): Mervyn Kowalsky, James Nau, Chad Goodnight

    A New Look at Strain Limits and Plastic Hinge Lengths for Reinforced Concrete Bridge Columns as Impacted by Loading HistoryThis paper discusses a research program supported by the Alaska Department of Transportation and Alaska University Transportation Center aimed at defining accurate limit...

  4. Impact of Diameter to Thickness Ratio on the Seismic Behavior of Reinforced Concrete Filled Steel Tubes

    15 May 2014 | Publications | Contributor(s): Mervyn Kowalsky, James Nau, Nicole King Brown

    Impact of Diameter to Thickness Ratio on the Seismic Behavior of Reinforced Concrete Filled Steel TubesNicole King Brown, Mervyn Kowalsky, James NauThis paper discusses the outcome of a research program supported by the Alaska Department of Transportation and Alaska University Transportation...

  5. Preliminary Parametric Study of the Effects of Live Load on Seismic Response of Highway Bridges

    15 May 2014 | Publications | Contributor(s): Hartanto Wibowo, Danielle Sanford, Ian Buckle, David Sanders

    Preliminary Parametric Study of the Effects of Live Load on Seismic Response of Highway BridgesMost bridge design specifications do not require the inclusion of live load in the seismic design for two reasons. The first is the unlikely occurrence of the full design live load on a bridge at the...

  6. Experimental study of inelastic bridge behaviour including pounding due to spatially varying ground excitation

    15 May 2014 | Publications | Contributor(s): Nawawi Chouw, Bo Li

    Experimental study of inelastic bridge behaviour including pounding due to spatially varying ground excitationPounding can cause damage to bridge decks during an earthquake. The relative bridge response can also lead to girder unseating. Spatial variation of ground motions plays an important...

  7. IMPACTS OF THE 1811-1812 EARTHQUAKES ON EXISTING TRANSPORTATION NETWORKS IN MEMPHIS AREA

    15 May 2014 | Publications | Contributor(s): Farzaneh Raji, Adel Abdelnaby, Anteneh Yohannes, Sabya Mishra

    Seismic Performance of Bridge and Road Embankment at Bridge ApproachIn this paper we try to simulate the response of a typical bridge to earthquake loading. Bridges are one of the most important components of transportation systems. Their importance is not just due to monetary or life losses...

  8. Seismic Design of Circular Concrete Filled Tube Bridge Pier Connections for Accelerated Bridge Construction

    15 May 2014 | Publications | Contributor(s): Max Stephens, Lisa Berg, Dawn Lehman, Charles Roeder

    Seismic Design of Circular Concrete Filled Tube Bridge Pier Connections for Accelerated Bridge ConstructionConcrete filled tubes (CFT) offer an efficient and economical alternative to conventional reinforced concrete construction including rapid construction and reduced material and labor costs....

  9. Dynamics of Inelastic Isolated Bridges Subjected to Analytical Pulse Ground Motions

    15 May 2014 | Publications | Contributor(s): Anastasios Tsiavos, Kevin Mackie, Bozidar Stojadinovic

    Dynamics of Inelastic Isolated Bridges Subjected to Analytical Pulse Ground MotionsThis paper aims at identifying the inelastic behavior of isolated bridges subjected to pulse ground excitation. The possibility of allowing yielding of the substructure will be investigated as an additional energy...

  10. Grouted Splice Sleeve Connection Alternatives for Precast Reinforced Concrete Bridge Piers in Moderate-to-High Seismic Regions

    15 May 2014 | Publications | Contributor(s): Chris Pantelides, Mohammad Ameli, Dylan Brown, Joel Parks

    Grouted Splice Sleeve Connection Alternatives for Precast Reinforced Concrete Bridge Piers in Moderate-to-High Seismic RegionsConnections between precast concrete bridge elements of the substructure and superstructure are some of the most critical components in bridges constructed using...

  11. FRP CONFINEMENT OF HIGH STRENGTH SELF-CONSOLIDATING CONCRETE

    15 May 2014 | Publications | Contributor(s): Mohamed ElGawady, Kamal Khayat

    Cyclic behavior of FRP-steel double skin cylindersReinforced concrete columns having hollow core (HC) cross sections offer high strength-to-weight ratio and high stiffness-to-weight ratio, which are desirable in construction and can save significant materials compared to solid columns. However,...

  12. Controlling The Seismic Damage In Bridge Columns Using Structural Fuses

    15 May 2014 | Publications | Contributor(s): Alireza Mohebbi, Keri Ryan, David Sanders

    Controlling The Seismic Damage In Bridge Columns Using Structural FusesPrevious research and experience demonstrates that post-earthquake downtime can cripple the transportation network, damage the economic viability of the region, and possibly have more far-reaching consequences due to the...

  13. Experimental Evaluation of Seismic Performance of Seat-Type Abutments in a Curved Highway Bridge

    15 May 2014 | Publications | Contributor(s): Joseph Wieser, Manos Maragakis, Ian Buckle

    Experimental Evaluation of Seismic Performance of Seat-Type Abutments in Curved Highway BridgesSeismic pounding at seat-type abutments has resulted in a wide range of damage to bridges in several recent earthquakes. Seat-type bridge abutments are commonly used in long span, skew, or curved...

  14. Numerical Simulation for Shaking Table Tests of Bridges with Exposed Pile Foundation

    15 May 2014 | Publications | Contributor(s): Shin-Tai Song, Chun-Yao Wang, Kuang-Yen Liu

    Numerical Simulation of Shaking Table Tests of Bridges with Exposed Pile FoundationAccording to a study published by the World Bank, approximately 3% of the Earth¡¦s land area and more than 11% of the world¡¦s population are exposed to multiple natural hazards, such as earthquakes, floods, and...

  15. Structural Behavior and Response Analysis of Aramid Fiber-Reinforced Polymer Reinforced Bridge Column Under Combined Loading

    15 May 2014 | Publications | Contributor(s): Steve Efe, Monique Head

    Structural Behavior and Response Analysis of Aramid Fiber-Reinforced Polymer Reinforced Bridge Column Under Combined LoadingHead Monique1, S. Efe21 Assistant Professor, Department of Civil Engineering, Morgan State University, Clarence M. Mitchell, Jr. School of Engineering, 1700 E. Cold Spring...

  16. Development of Cyclic Loading Protocol for Bridge Columns Considering Subduction Zone Mega Earthquakes

    15 May 2014 | Publications | Contributor(s): Ramiro Bazaez, Peter Dusicka

    Development of Cyclic Loading Protocol for Bridge Columns Considering Subduction Zone Mega EarthquakesOne method to assess the performance of structural components is via experimental evaluations utilizing cyclic loading. The 2010 Maule, Chile and 2011 Tohoku, Japan earthquakes have raised the...

  17. Vulnerability evaluation of common simple-supported highway bridges

    15 May 2014 | Publications | Contributor(s): M Consolación Gómez-Soberón, Ivan Soria

    Vulnerability evaluation of common simple-supported highway bridgesBridges are structures with long functional life, subjected to extreme and variable loads. According to their structural configuration, bridges are classified in different typologies. Because of their fragility to different...

  18. In Situ Dynamic Properties of an In-Service Bridge Using Forced Vibration Testing

    15 May 2014 | Publications | Contributor(s): Lucas Hogan, Liam Wotherspoon, Sherif Beskhyroun, Jason Ingham

    In Situ Dynamic Properties of an In-Service Bridge Using Forced Vibration TestingWith the use of integrated soil-foundation-structure modelling in seismic bridge design, there is an inherent difficulty in determining the validity of the assumed stiffness and damping of the system and the...

  19. Numerical Approaches in Modeling Soil-Foundation Interaction of Tall Bridges

    15 May 2014 | Publications | Contributor(s): Mohammad Reza Falamarz Sheikhabadi, Aspasia Zerva

    Numerical Approaches in Modeling Soil-Foundation Interaction of Tall BridgesInherent assumptions in the modeling of soil-foundation interaction can significantly affect the nonlinear seismic response of bridges. Pushover analyses on one of the two piers of the Mogollon Rim Viaduct are conducted...

  20. Seismic Response Prediction of Bridges Using Incremental Dynamic Analysis with Subduction Zone and Crustal Ground Motion Records

    15 May 2014 | Publications | Contributor(s): Payam Tehrani, Denis Mitchell, Katsuichiro Goda, Gail Atkinson, Luc Chouinard

    Seismic Response Prediction of Bridges Using Incremental Dynamic Analysis with Subduction Zone and Crustal Ground Motion RecordsTypically only the ground motion records from crustal earthquakes have been used in practice for seismic performance assessment of bridges. For some sites, such as...