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  1. Distributed knee-brace (DKB) system as a complete or supplemental retrofit for soft story woodframe buildings

    15 May 2014 | Publications | Contributor(s): Mikhail Gershfeld, Charles Chadwell, John Van de Lindt, Weichiang Pang, Ershad Ziaei, Omar Ameni, Stephan Gordon

    Distributed knee-brace (DKB) system as a complete or supplemental retrofit for soft story woodframe buildingsIn the early and mid 20th century a variety of three to four-story woodframe buildings were built in greater San Francisco area with a seismic resistance structural deficiency classified...

  2. Experimental Study on the Seismic Performance of Pressurized Fire Extinguishing Sprinkler Piping Subsystems

    15 May 2014 | Publications | Contributor(s): Yuan Tian, Andre Filiatrault, Gilberto Mosqueda

    Experimental Study on the Seismic Performance of Pressurized Fire Extinguishing Sprinkler Piping SubsystemsPressurized fire suppression sprinkler piping is a critical nonstructural system that must remain operational after an earthquake, particularly in critical facilities. However, recent...

  3. Community resilience assessment integrating network interdependencies

    15 May 2014 | Publications | Contributor(s): Gian Paolo Cimellaro, Vincenzo Arcidiacono, Daniele Solari, Michel Bruneau, Andrei Reinhorn, Chris Renschler

    Community resilience assessment integrating network interdependenciesThe concept of Disaster Resilience has received considerable attention in recent years and it is increasingly used as an approach for measuring response of communities to natural disasters. Recently a framework named PEOPLES...

  4. A MICRO-UAV APPROACH TO EARTHQUAKE DISASTER SENSING: A CRITICAL REVIEW

    15 May 2014 | Publications | Contributor(s): ZhiQiang Chen

    A Micro-UAV Approach to Earthquake Disaster Scene Sensing and Proof-of-Concept StudiesStrong earthquakes when realized in urban areas often lead to disastrous consequences that overwhelm the local response capacity when responding to widespread human casualties and crippled built environment....

  5. A 100-Point System for Selecting and Ranking Natural Earthquake Records for Engineering Analysis

    15 May 2014 | Publications | Contributor(s): Kofi Addo, Andreas Felber

    A 100-Point System for Selecting and Ranking Natural Earthquake Records for Engineering AnalysisKofi O. Addo and Andreas J. FelberBC Hydro & Power Authority, 6911 Southpoint Drive (A02), Burnaby, BC V3N 4X8 CANADAUntil recently, finding natural earthquakes recorded on rock or competent ground...

  6. System-Level Experiments on Ceiling/Piping/Partition Systems at UNR-NEES Site

    15 May 2014 | Publications | Contributor(s): Esmaeel Rahmanishamsi, Siavash Soroushian, Manos Maragakis

    System-Level Experiments on Ceiling/Piping/Partition Systems at UNR-NEES SiteMany of the critical facilities and buildings, like hospitals and fire stations, need to be used immediately after earthquakes. However, seismic damages to ceiling-piping-partition systems (CPP) result in many cases in...

  7. Seismic Vulnerability Assessment of the Washington Monument

    15 May 2014 | Publications | Contributor(s): Owen Rosenboom, Terrence Paret, Leo Panian, Mike Korolyk, John Egan, Donald Wells, Debra Murphy

    Seismic Vulnerability Assessment of the Washington MonumentIn 2011, the Washington Monument was subjected to ground shaking from the Magnitude 5.8 Mineral, Virginia earthquake (Mineral event), whose epicenter was roughly 80 miles from the National Mall in Washington, D.C. Shaking of the 555-foot...

  8. COST-BENEFIT ANALYSIS OF CODES AND STANDARDS FOR EARTHQUAKE-RESISTANT CONSTRUCTION IN MEMPHIS, TENNESSEE

    15 May 2014 | Publications | Contributor(s): Ayse Hortacsu, James Harris

    COST-BENEFIT ANALYSIS OF CODES AND STANDARDS FOR EARTHQUAKE-RESISTANT CONSTRUCTION IN MEMPHIS, TENNESSEEThis paper summarizes the findings of the ATC-89 project, which investigated cost premiums associated with earthquake-resistant building construction in the middle Mississippi River Valley...

  9. Seismic retrofit of high-rise building against the long-period ground motions

    15 May 2014 | Publications | Contributor(s): Hideshi Aono, Osamu Hosozawa, Yozo Shinozaki, Yuichi Kimura

    Seismic retrofit of high-rise building against the long-period ground motionsAlong the subduction-zone of the western Japanese islands, large earthquakes will occur around the middle of this century and long-period ground motions will reach major urban areas, and shake high-rise buildings...

  10. Modeling and visualizing infrastructure-centric community disaster resilience

    15 May 2014 | Publications | Contributor(s): Scott Miles

    Modeling and visualizing infrastructure-centric community disaster resilienceUnderstanding the resilience of infrastructure is critical to the broader goal of community disaster resilience – minimization of loss and facilitation of recovery. Empirical research shows that infrastructure damage or...

  11. Mapping seismic landslide hazards in Anchorage, Alaska

    15 May 2014 | Publications | Contributor(s): Randall Jibson

    Mapping seismic landslide hazards in Anchorage, AlaskaThe devastating landslides that accompanied the great 1964 Alaska earthquake showed that seismically triggered landslides are one of the greatest geologic hazards in Anchorage. Maps quantifying seismic landslide hazards are therefore...

  12. High-Precision Displacement Control for Hybrid Simulation of the Seismic Response of Stiff Reinforced Concrete Shear Walls

    15 May 2014 | Publications | Contributor(s): Catherine Whyte, Bozidar Stojadinovic

    High-Precision Displacement Control for Hybrid Simulation of the Seismic Response of Stiff Reinforced Concrete Shear WallsHybrid simulation of a stiff specimen is a challenge for traditional displacement control methods. Since small displacement increments correspond to large force increments in...

  13. Considering Topography when Mapping Liquefaction Hazard with the Liquefaction Potential Index

    15 May 2014 | Publications | Contributor(s): Daniel Gillins

    The Limitations of Mapping Liquefaction Hazard Using the Liquefaction Potential IndexDuring historic major earthquakes, liquefaction-induced ground deformations caused severe and costly damage to the built-up environment; hence, many communities are interested in defining, mitigating, and...

  14. Seismic Behavior of Reinforced Concrete Bridge Members in Freezing Conditions

    15 May 2014 | Publications | Contributor(s): Mervyn Kowalsky, James Nau, Tasnim Hassan, Luis Montejo, John Sloan, Lennie Gonzalez

    Seismic Behavior of Reinforced Concrete Bridge Members in Freezing ConditionsThis paper discusses the outcome of several research projects on the seismic behavior of reinforced concrete structural members in freezing conditions. This was accomplished through material level testing, large scale...

  15. Optimal retrofit strategy for disaster resilience of highway bridges

    15 May 2014 | Publications | Contributor(s): Swagata Banerjee, Sandyha Chandrashekar

    Optimal retrofit strategy for disaster resilience of highway bridgesSeismic retrofitting of highway bridges is a very common approach to enhance performance of highway transportation systems. Maximization of system performance and resilience, however, may often call for a conservative retrofit...

  16. Overview and Assessment of Analysis Techniques for Confined Masonry Buildings

    15 May 2014 | Publications | Contributor(s): Anna Lang, Francisco Crisafulli, Gonzalo Torrisi

    Overview and Assessment of Analysis Techniques for Confined Masonry BuildingsConfined masonry is a construction technique widely used in seismic regions of Latin America and Asia for low-rise and medium-rise buildings up to six stories. Experience obtained from past earthquakes and experimental...

  17. Real-Time Hybrid Simulation of a Stacked Wood Shear Wall with Viscous Damper

    15 May 2014 | Publications | Contributor(s): Xiaoyun Shao, John van de Lindt, Pouria Bahmani, Weichiang Pang, Ershad Ziaei, Michael Symans, Jingjing Tian, Thang Dao

    Real-Time Hybrid Simulation of a Stacked Wood Frame Shear Wall Frame with Viscous DamperReal-time hybrid simulation (RTHS) on a stack wood shear wall frame retrofitted with viscous damper was conducted at the newly constructed Structural Engineering Laboratory at the University of Alabama as...

  18. Embedded Faults: A New Alternative for Incorporating Geologic Data in Seismic Source Zone Modeling

    15 May 2014 | Publications | Contributor(s): Dean Ostenaa, Martin McCann, Robert Youngs, Martin Lawrence

    Embedded Faults: A New Alternative for Incorporating Geologic Data in Seismic Source Zone ModelingThe study region for the Seismic Source Characterisation (SSC) in the BC Hydro PSHA project includes large geographic areas in which detailed knowledge of potential Quaternary faults, seismicity and...

  19. Collapse Behavior of Steel Columns under Combined Axial and Lateral Loading

    15 May 2014 | Publications | Contributor(s): Julie Fogarty, Sherif El-Tawil

    Collapse Behavior of Steel Columns under Combined Axial and Cyclic LoadingThe strength and stability of steel columns that have been subjected to combined axial and reversed lateral loading has been investigated analytically and computationally. An analytical model based on the Rayleigh-Ritz...

  20. RECORDED RESPONSE OF A TALL BUILDING IN ABU DHABI FROM A DISTANT LARGE EARTHQUAKE

    15 May 2014 | Publications | Contributor(s): Erdal Safak, Yavuz Kaya, Derek Skolnik, Mauricio Ciudad-Real, Hassan Al Mulla, Ali Megahed

    RECORDED RESPONSE OF TALL BUILDINGS IN ABU DHABI FROM TWO DISTANT LARGE EARTHQUAKESIn 2012, as part of the Abu Dhabi Municipality’s “Assessment of Seismic Hazard and Risk in Emirate of Abu Dhabi” project, several very tall buildings have been installed with real-time Structural Health Monitoring...