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  1. Characterizing Soil-Foundation-Structure Interaction Using Experimental Data From a Test Structure

    09 Jul 2014 | Publications | Contributor(s): Emily Stinson

    Most of what is currently known about soil-structure interaction (SSI) is based on theoretical models. Since SSI can lead to seismically unsafe designs, as demonstrated by the devastating damage caused by soil amplification during the 1985 Mexico City Earthquake and the 1989 Loma Prieta...

  2. SEISMIC SETTLEMENT OF SHALLOW FOUNDATIONS

    15 May 2014 | Publications | Contributor(s): shamsher prakash, vijay Puri

    SEISMIC SETTLEMENT OF SHALLOW FOUNDATIONSshamsher prakash, vijay PuriShamsher Prakash, Emeritus Professr, MST,Rolla MO 65402VK Puri, SIU, Carbondale IL ABSTRACT Many foundations failures have been observed during earthquakes because of excessive settlement and tilt. Experimental and analytical...

  3. Incorporating Soil-Foundation-Structure Interaction Effects through a Decoupled Analysis for the Sesimic Design of a Pile Supported Building at a Soft Soil Site with High Impedance Effect

    15 May 2014 | Publications | Contributor(s): King Chin, Bryan Zagers, Luke Ruggeri

    Incorporating Soil-Foundation-Structure Interaction Effects through a Decoupled Analysis for the Sesimic Design of a Pile Supported Building at a Soft Soil Site with High Impedance EffectThis paper presents a decoupled analysis approach used to incorporate the soil-foundation-structure...

  4. Behavior of Model Pile in Saturated Sloping Ground in Shaking Table Test

    15 May 2014 | Publications | Contributor(s): Chia-Han Chen, Tzou-Shin Ueng, Cheng-Hsing Chen

    Behavior of Model Pile in Saturated Sloping Ground during Shaking Table TestShaking table tests on model pile in saturated inclined ground were conducted at the National Center for Research on Earthquake Engineering (NCREE), Taiwan to study the soil-structure interaction, especially lateral...

  5. Seismic Displacements for the Downtown Anchorage Seismic Risk Assessment

    15 May 2014 | Publications | Contributor(s): Jonathan Bray, Jennifer Donahue

    Seismic Displacements for the Downtown Anchorage Seismic Risk AssessmentJennifer Donahue, Jonathan BrayThe characterization of the magnitude and type of potential ground movement during major earthquakes and its resulting impact on buildings and lifelines is an integral part of the seismic risk...

  6. PB LiquefY: A New Analysis Tool for the Performance-Based Evaluation of Liquefaction Triggering

    15 May 2014 | Publications | Contributor(s): Kevin Franke, Alexander Wright, Cody Hatch

    PB LiquefY: A New Analysis Tool for the Performance-Based Evaluation of Liquefaction TriggeringKevin Franke, Alexander Wright, Cody HatchPerformance-based design is becoming more prevalent across the many disciplines comprising the field of earthquake engineering. Significant research advances...

  7. Post-cyclic recompression characteristics of a clay subjected to undrained uni-directional and multi-directional cyclic shears

    15 May 2014 | Publications | Contributor(s): Hiroshi Matsuda, Tran Thanh Nhan, Kazuhiro Nakahara, Do Quang Thien, Tran Huu Tuyen

    Post-cyclic recompression characteristics of a clay pre-subjected to undrained uni-directional and multi-directional cyclic shearsIn this paper, the effect of cyclic shear direction on the recompression characteristics of saturated clay pre-subjected to undrained uni-directional and...

  8. A Ground Model for Earthquake Response Analysis Derived as Best-Simplified with Using Microtremor Measurements

    15 May 2014 | Publications | Contributor(s): Atsushi Mikami

    A Ground Model for Earthquake Response Analysis Derived as Best-Simplified with Using Microtremor MeasurementsIn order to evaluate seismic performance of long-extended structures such as levees, underground pipes, and so on, it is necessary to evaluate ground responses over a wide area, taking...

  9. Dissipated & Strain Energies in Undrained Cyclic Loading Tests for Liquefaction Potential Evaluations

    15 May 2014 | Publications | Contributor(s): YOSUKE KANEKO, TAKAJI KOKUSHO

    Inside Dissipated Energy and Strain Energy in Liquefied Sand by Hollow Cylindrical Torsional Shear TestA stress-based method (SBM) has been employed for liquefaction potential evaluations in many design codes worldwide, while an energy-based method (EBM) is very limited in engineering practice,...

  10. Load Distribution in Large Pile Groups for Static and Seismic Loading

    15 May 2014 | Publications | Contributor(s): W.D. Liam Finn, Jason Dowling, Guoxi Wu

    Load Distribution in Large Pile GroupsA large number of modern structures are founded on piles and often these foundations contain large pile groups. In contrast, most of the research on the action of pile groups in resisting lateral loading is based on analysis and centrifuge tests of small...

  11. Dynamic Soil-Structure Interaction Analyses of 300m Tall Industrial Reinforced Concrete Chimneys on Piled Raft Foundations

    15 May 2014 | Publications | Contributor(s): Jisha S.V, Jayalekshmi B.R, Shivashankar R

    Dynamic Soil-Structure Interaction Analyses of 300m Tall Industrial Reinforced Concrete Chimneys on Piled Raft FoundationsSoil-structure interaction (SSI) analysis of 300m tall slender industrial reinforced concrete chimneys with piled raft foundation subjected to Elcentro (1940) ground motion...

  12. Soil-Structure Interaction Analysis of the Manhattan Bridge Foundations

    15 May 2014 | Publications | Contributor(s): Lelio Mejia, Rajendram Arulnathan, Sathish Murugaiah, Thomas Thomann

    Soil-Structure Interaction Analysis of the Manhattan Bridge FoundationsThe seismic evaluation of long-span bridges typically requires consideration of dynamic soil-structure interaction (SSI) effects on the seismic response of such bridges. Dynamic SSI effects depend primarily on the bridge...

  13. WHAT HAVE WE LEARNED AFTER A DECADE OF EXPERIMENTS AND MONITORING AT THE NEES@UCSB PERMANENTLY INSTRUMENTED FIELD SITES?

    15 May 2014 | Publications | Contributor(s): Jamison Steidl

    WHAT HAVE WE LEARNED AFTER A DECADE OF EXPERIMENTS AND MONITORING AT THE NEES@UCSB PERMANENTLY INSTRUMENTED FIELD SITES?The Wildlife Liquefaction Array (WLA) and Garner Valley Downhole Array (GVDA) located in southern California are facilities that for the last decade have been supported under...

  14. Pore Pressure Generation Under Different Transient Loading Histories

    15 May 2014 | Publications | Contributor(s): Wing Shun Kwan, Sam Sideras, Chadi El Mohtar, Steve Kramer

    Pore Pressure Generation Under Different Transient Loading HistoriesThe current procedure for characterizing earthquake loading (uniform stress cycles with amplitude = 0.65 of the peak shear stress) has been used for evaluating soil liquefaction hazards for more than 40 years. Since then, the...

  15. Reduced Passive Force-Deflection Behavior for Skewed Bridge Abutments

    15 May 2014 | Publications | Contributor(s): Kyle Rollins, Katie Palmer, Amy Fredrickson

    Reduced Passive Force-Deflection Behavior for Skewed Bridge AbutmentsKyle Rollins, Katie Palmer, Amy FredricksonPassive force-deflection behavior for densely compacted backfills must be considered in bridge design to ensure adequate resistance to both seismic and thermally induced forces....

  16. Slope Stability Evaluation of South Bluff of the Anchorage Port Access Bridgee

    15 May 2014 | Publications | Contributor(s): Chi-Chin Tsai, Philip Meymand

    Slope Stability Evaluation of South Bluff of the Anchorage Port Access BridgeeAnchorage Port Access Bridge constructed in 1975 connects the Port of Anchorage and the city of Anchorage, Alaska. The south abutment of the bridge is founded in an area of historical slope instability. During the 1964...

  17. Nonlinear Stiffness Matrix Modeling for Complex Pile Group Foundation of the Anchorage Port Access Bridge

    15 May 2014 | Publications | Contributor(s): Chi-Chin Tsai, Philip Meymand, Benjamin Choy

    Nonlinear Stiffness Matrix Modeling for Complex Pile Group Foundation of the Anchorage Port Access BridgeThis paper presents a rational procedure to model complex soil-pile foundation systems in support of a seismic evaluation of the Anchorage Port Access Bridge constructed in 1975. The 2600-ft...

  18. Risk of Seismic Deformation of a 1960’s Rockfill Dam in Lebanon

    15 May 2014 | Publications | Contributor(s): Justin Phalen, Faiz Makdisi, Jian Hu, Eric Viala, Nabil Amacha

    Risk of Seismic Deformation of a 1960’s Rockfill Dam in LebanonQaraoun Dam is a 60-meter-high concrete-faced rockfill embankment built in 1960 at the southern end of the Bekaa Valley in central Lebanon, and forms Qaraoun Reservoir with a storage capacity of about 220 million m3. Lebanon is...

  19. Seismic Deformation Evaluation of Lenihan Dam Under 1989 Loma Prieta Earthquake

    15 May 2014 | Publications | Contributor(s): Rambod Hadidi, Yoshi Moriwaki, John Barneich, Robert Kirby, Michael Moores

    Seismic Deformation Evaluation of Lenihan Dam Under 1989 Loma Prieta EarthquakeThe paper presents the results of seismic deformation analysis of Lenihan Dam under Loma Prieta earthquake using equivalent linear and nonlinear finite difference analyses with two different non-linear soil models...

  20. Comparison of Design Procedures and Observed Performance of Bridges Subject to Lateral Spreading

    15 May 2014 | Publications | Contributor(s): Benjamin Turner, Scott J. Brandenberg, Jonathan P. Stewart

    Comparison of Design Procedures and Observed Performance of Bridges Subject to Lateral SpreadingResults are presented of the authors’ investigation of the performance of a railroad bridge and adjacent highway bridge during the 2010 El Mayor-Cucapah earthquake in Baja California, Mexico. A span...