NEESR-SG: Controlled Rocking of Steel-Framed Buildings with Replaceable Energy Dissipating Devices

NEESR-SG Controlled Rocking:  Project Website

Project Overview

This project is to develop a new structural building system that employs rocking action and replaceable structural fuses to provide safe and cost effective resistance to earthquakes. The system combines desirable aspects of conventional steel-braced framing (or equally valid, of reinforced concrete walls) with two alternative and complementary fuse concepts – shear panel fuses and axial column fuses. Materials that will be investigated for implementing the fuses are high-performance fiber reinforced cementitious composites and ductile buckling restrained steel components. Guided by performance-based capacity design principles, the fuses are easily replaceable and can be tuned to provide optimal performance. Through controlled rocking of the structure, concerns about damage to foundations and primary structural elements are avoided. The research will take full advantage of complementary features of the NEES MUST-SIM facility at the University of Illinois at Urbana-Champaign and Japan’s E-Defense shaking table. With one of the key objectives being to validate the proposed seismic system for reliable use in engineering practice, the E-Defense facility provides the unique capabilities to perform dynamic shake table tests of a nearly full-scale building prototype.

For more information, please see the project website

Project Staff

FACULTY INVESTIGATORS

PRINCIPAL INVESTIGATOR: STANFORD UNIVERSITY

Gregory G. Deierlein, Professor, Director, John A. Blume Earthquake Engineering Center, and Deputy Director, Pacific Earthquake Engineering Research Center: 240 Terman Engineering Center, (650) 723-0453, (650) 725-9755 (fax), ggd@stanford.edu

Location: Department of Civil and Environmental Engineering, MC 4020, Stanford University, Stanford, California 94305-4020 USA

CO-PRINCIPAL INVESTIGATORS: STANFORD UNIVERSITY

Sarah Billington, Associate Professor: 236 Terman Engineering Center, (650) 723-4125, (650) 723-7514 (fax), billington@stanford.edu

Helmut Krawinkler, John A. Blume Professor of Civil Engineering: 230 Terman Engineering Center, (650) 723-4129, (650) 723-7514 (fax), krawinkler@stanford.edu

Location: Department of Civil and Environmental Engineering, MC 4020, Stanford University, Stanford, California 94305-4020 USA

CO-PRINCIPAL INVESTIGATOR: UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN

Jerome F. Hajjar, Professor, Narbey Khachaturian Faculty Scholar, IT Director, MUST-SIM Facility, and Deputy Director, Mid-America Earthquake Center: 2129b Newmark Civil Engineering Laboratory, (217) 244-4027, (217) 265-8040 (fax), jfhajjar@uiuc.edu

Location: Department of Civil and Environmental Engineering, MC-250, 205 North Mathews Avenue, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801-2352 USA

FACULTY COLLABORATOR: HOKKAIDO UNIVERSITY

Mitsumasa Midorikawa, Laboratory of Structural Analysis, +81 (11) 706-6230, midorim@eng.hokudai.ac.jp

Location: Department of Socio-Environmental Engineering, Faculty and Graduate School of Engineering, Hokkaido University, N13, W8, Kita-ku, Sapporo 060-8628 Japan

POST-DOCTORAL ASSOCIATES, GRADUATE STUDENTS, AND UNDERGRADUATE STUDENTS:

Current

Eric Borchers, Graduate Research Assistant, Stanford University, ewb@stanford.edu

Xiang Ma, Graduate Research Assistant, Stanford University, maxiang@stanford.edu

Matthew Eatherton, Graduate Research Assistant, University of Illinois at Urbana-Champaign, meather2@uiuc.edu

Kerry Hall, Graduate Research Assistant, University of Illinois at Urbana-Champaign, kshall2@uiuc.edu

Former

Paul Cordova, Post-Doctoral Associate, Stanford University

Project Schedule

Project Initiation:  October 1, 2005

Experimental Testing at Stanford University:  2006-2007

Experimental Testing at MUST-SIM:  2007-2008

Experimental Testing at E-Defense:  2008-2009

Project Termination, September 30, 2009