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Tags: Seismic Isolation

All Categories (1-20 of 139)

  1. Performance-Based Design of Seismically Isolated Bridges

    17 Oct 2014 | Publications | Contributor(s): Eric L. Anderson

    The response of simple isolated bridge overcrossings to a variety of multi-dimensional earthquake inputs was investigated by analysis and experiment. These studies were undertaken as part of the...

    http://nees.org/resources/13198

  2. A Case Study on the Initial Costs and Life Cycle Benefits of Base Isolation for a Low Rise Office Building

    15 May 2014 | Publications | Contributor(s): Matthew Cutfield, Keri Ryan, Quincy Ma

    A Case Study on the Initial Costs and Life Cycle Benefits of Base Isolation for a Low Rise Office Building Base isolation provides a proven and effective means of protecting structures from the...

    http://nees.org/resources/11647

  3. A direct method for the design of viscous dampers to be inserted in existing buildings

    15 May 2014 | Publications | Contributor(s): Luca Landi, Pier Paolo Diotallevi, Simone Lucchi

    A direct method for the design of viscous dampers to be inserted in existing buildings In the design of viscous dampers to be inserted in existing structures the supplemental damping is often...

    http://nees.org/resources/12037

  4. A new nonlinear system for three-dimensional isolation of vibrations in structures and equipment

    15 May 2014 | Publications | Contributor(s): José Luis Almazán

    A new nonlinear system for three-dimensional isolation of vibrations in structures and equipment All equipment or structure is permanently subjected to vibrations from their environment. This...

    http://nees.org/resources/12139

  5. A Novel Variable Friction Device for Natural Hazard Mitigation

    15 May 2014 | Publications | Contributor(s): Simon Laflamme, Austin Downey, Liang Cao, James Ricles, Douglas Taylor

    Novel Variable Friction Device for Natural Hazard Mitigation Implementation of high performance damping devices can increase cost-effectiveness of structural systems for mitigation of natural...

    http://nees.org/resources/11351

  6. Advances in Low-Cost Seismic Isolation with Rubber

    15 May 2014 | Publications | Contributor(s): Dimitrios Konstantinidis, James Kelly

    Advances in Low Cost Seismic Isolation with Rubber This paper examines multi-layer elastomeric isolation bearings where the reinforcing elements, normally thick and inflexible steel plates, are...

    http://nees.org/resources/11387

  7. ALUMINUM BUCKLING RESTRAINED BRACES FOR SEISMIC RESISTANCE OF TRUSS MOMENT FRAMES

    15 May 2014 | Publications | Contributor(s): Vijay Pal Singh, Durgesh Rai

    ALUMINUM CORE BUCKLING RESTRAINED BRACES FOR SEISMIC RESISTANCE The Buckling restrained brace (BRB) is a special type of brace which does not buckle when loaded in axial compression. Hence, it...

    http://nees.org/resources/11815

  8. Amplification in the Response of LRB Isolated Structures due to Bidirectional Excitations due to Lead Core Heating

    15 May 2014 | Publications | Contributor(s): Ugurhan Akyuz, Gokhan Ozdemir

    Amplification in the Response of LRB Isolated Structures due to Bidirectional Excitations due to Lead Core Heating This study investigates the response of lead rubber bearings (LRBs) under...

    http://nees.org/resources/11337

  9. AN INNOVATIVE TYPE OF TUNED LIQUID DAMPER

    15 May 2014 | Publications | Contributor(s): Diego Lopez-Garcia, Rafael Ruiz, Alexandros Taflanidis

    AN INNOVATIVE TYPE OF TUNED LIQUID DAMPER Tuned Liquid Dampers (TLD) devices are attractive because of their simple scheme, low cost, and ease of tuning. Their main disadvantages are the very low...

    http://nees.org/resources/12407

  10. Analytical Study of Shear Slotted Bolted Connection in Moment Resisting Frames

    15 May 2014 | Publications | Contributor(s): Mohammad Taghi Nikoukalam, Kiarash Mohtasham Dolatshahi, Seyed Rasoul Mirghaderi

    Analytical Modeling of Shear Slotted Bolted Connection (SSBC) in Moment Resisting Frames Slotted Bolted Connections (SBCs) and Rotational Slotted Bolted Connections (RSBCs) are two types of...

    http://nees.org/resources/12249

  11. APPLICATIONS OF SEISMIC DAMPERS TO SPECIAL MOMENT FRAMES

    15 May 2014 | Publications | Contributor(s): Amir Gilani, H Kit Miyamoto

    Seismic dampers, enhanced perfromanced, superior long term perfromance and reduced collpase risk H Kit Miyamoto, Amir Gilani The application of seismic protection devices such as dampers has...

    http://nees.org/resources/11063

  12. Buckling-Mode Number and Compressive-to-Tensile Strength Ratio of Buckling-Restrained Braces

    15 May 2014 | Publications | Contributor(s): Mitsumasa Midorikawa, Mamoru Iwata, Takuya Wakayama, Ryota Iizuka, Taichiro Okazaki, Tetsuhiro Asari

    Buckling-Mode Number and Compressive-to-Tensile Strength Ratio of Buckling-Restrained Braces Buckling-restrained braces (BRBs) are composed of a steel core, which resists axial force, and a...

    http://nees.org/resources/11589

  13. Case Studies on the Seismic Protection of Equipment in Essential Buildings

    15 May 2014 | Publications | Contributor(s): Claudia Marin-Artieda

    Case Studies on the Assessment of Seismic Protective Systems for Equipment in Multistory Buildings Post-earthquake emergency operations demand the complete and continuous functionality of...

    http://nees.org/resources/12317

  14. Correction factor for estimating the maximum relative velocity based on pseudo velocity

    15 May 2014 | Publications | Contributor(s): Alexis Saez, Maria Moroni, Mauricio Sarrazin

    Correction factor for maximum inter-story displacement evaluation from pseudo-velocity spectrum For the design of buildings equipped with energy dissipation devices, the estimation of the maximum...

    http://nees.org/resources/12083

  15. Cyclic behavior of steel shear links used in replaceable coupling beams

    15 May 2014 | Publications | Contributor(s): Xiaodong JI, Qifeng Ma, Taichiro Okazaki, Yandong Wang

    Cyclic behavior of steel shear links used in replaceable coupling beams The use of replaceable coupling beams provides a solution to minimize the time and expenses of post-damage repair for...

    http://nees.org/resources/12579

  16. CYCLIC TESTING OF STEEL-CORE BUCKLING-RESTRAINED BRACES (BRBs) HAVING SIMPLE END DETAILS AND INFILLED WITH HIGH STRENGTH GROUT

    15 May 2014 | Publications | Contributor(s): Cigdem Avci Karatas, Oguz C. Celik

    CYCLIC TESTING OF STEEL-CORE BUCKLING RESTRAINED BRACES (BRBs) HAVING SIMPLE END DETAILS AND INFILLED WITH HIGH STRENGTH GROUT Intense research is being done in the field of Buckling Restrained...

    http://nees.org/resources/11119

  17. Damping of seismic vibrations of a 3D asymmetrical building model with multiple TMD’s

    15 May 2014 | Publications | Contributor(s): Jean-Paul Pinelli, Kai Chen, Hector Gutierrez, Razvan Rusovici

    Damping of seismic vibrations of a 3D asymmetrical building model with multiple TMD’s In this paper, the authors investigate the control of the seismic response of a three dimensional asymmetrical...

    http://nees.org/resources/11543

  18. Design and Testing of a Gap Damper Device to Mitigate Rare Earthquake Pounding Response in Base-Isolated Buildings

    15 May 2014 | Publications | Contributor(s): Taylor Rawlinson, Justin Marshall, Keri Ryan, Hamed Zargar

    Design and Testing of a Passive Gap Damper Device to Mitigate Rare Earthquake Pounding Response in Base-Isolated Buildings Prior research has demonstrated the effectiveness of providing a delayed...

    http://nees.org/resources/11851

  19. Development of a large-scale hybrid shake table and application to testing a friction slider isolation system

    15 May 2014 | Publications | Contributor(s): Andreas Schellenberg, Tracy Becker, Stephen Mahin

    Development of a large-scale hybrid shake table and application to testing a friction slider isolation system A large-scale unidirectional hybrid shake table was constructed at the NEES laboratory...

    http://nees.org/resources/12147

  20. Direct assessment of the nonlinear seismic response of RC frames with viscous dampers

    15 May 2014 | Publications | Contributor(s): Luca Landi, Omar Fabbri, Pier Paolo Diotallevi

    A direct assessment procedure for nonlinear structures equipped with nonlinear viscous dampers The insertion of fluid viscous dampers in building structures is an innovative technology which can...

    http://nees.org/resources/12027