Title: Development of Next Generation Adaptive Seismic Protection Systems (NEES-2008-0653)

Year Of Curation: 2014

Description: Design of conventional structures specified by the codes is based on the philosophy that the structure should withstand seismic loads while sustaining an acceptable level of damage. Structures are designed to prevent collapse but their serviceability and functionality in the aftermath of strong earthquake ground motion are not taken into consideration. This is achieved by designing structures to be ductile and letting them yield when subjected to strong earthquake ground motions. Yielding leads to stiffness and strength degradation, increased interstory drifts, and damage with permanent drifts, which render the structure non-functional.

Award: http://www.nsf.gov/awardsearch/showAward?AWD_ID=0830391

PIs & CoPIs: Satish Nagarajaiah, Michael Constantinou, Andrei Reinhorn, Michael Symans, Douglas Taylor, Jian Zhang

Dates: September 01, 2008 - August 31, 2013

Organizations: Rensselaer Polytechnic Institute, Troy, NY, United States, Rice University, TX, United States, State University of New York at Buffalo, NY, United States, University of California, Los Angeles, CA, United States

Facilities: State University of New York at Buffalo, NY, United States

Sponsor: NSF - CMMI - 0830391

Keywords: Adaptive seismic protection systems, Negative Stiffness Device, Shake table testing, Apparent Weakening, Apparent yielding, base isolated building, Adaptive Stiffness Structures

Publications: 

"Performance Assessment of a Highway Bridge Structure employing Adaptive Negative Stiffness for Seismic Protection"

"Seismic Responses and Protection of Building Systems Using PBEE Methodology"

"Negative Stiffness Device for Seismic Protection of Base Isolated Structures - Shake Table Testing"

• Satish Nagarajaiah, Andrei Reinhorn, Michael Constantinou, Michael Symans, Douglas Taylor, Jian Zhang (2017), "Development of Next Generation Adaptive Seismic Protection Systems (NEES-2008-0653)," https://datacenterhub.org/deedsdv/publications/view/374.