Seismic Response and Performance of a Steel MRF Building with Nonlinear Viscous Dampers under DBE and MCE
Publication: Journal of Structural Engineering
Volume 142, Issue 6
Abstract
This paper presents an experimental study of the seismic response of a 0.6-scale three-story building with nonlinear viscous dampers under the design basis earthquake (DBE) and the maximum considered earthquake (MCE). The test structure consists of a moment-resisting frame (MRF) with reduced beam sections (RBS), a frame with nonlinear viscous dampers and associated bracing (called the DBF), and a gravity load system. The paper focuses on quantifying and assessing the seismic response of the test structure under the DBE and MCE. Three MRF designs were studied for 100, 75, and 60%, respectively, of the required base shear design strength according to ASCE 7-10. The DBF with nonlinear viscous dampers was designed to control the lateral drift demands. Earthquake simulations using ensembles of ground motions were conducted using the real-time hybrid simulation method. Experimental results show that a high level of seismic performance can be achieved under DBE and MCE ground motions, even for a building structure designed for as little as 60% of the design base shear strength required by ASCE 7-10 for a building structure without dampers.
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Acknowledgments
This paper is based upon work supported by grants from the National Science Foundation, Award No. CMS-0936610 in the George E. Brown, Jr. Network for Earthquake Engineering Simulation Research (NEESR) program, and Grant No. CMS-0402490 for the George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) consortium operations. Support was also provided by the Pennsylvania Department of Community and Economic Development through the Pennsylvania Infrastructure Technology Alliance. The experiments were conducted at the NEES Real-Time Multi-Directional (RTMD) earthquake simulation facility located at the ATLSS Engineering Research Center at Lehigh University. The authors acknowledge the contributions of the NEES RTMD staff and the ATLSS Center staff. The opinions, findings, and conclusions expressed in this paper are those of the authors and do not necessarily reflect the views of those acknowledged here.
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Published In
Journal of Structural Engineering
Volume 142 • Issue 6 • June 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Mar 1, 2015
Accepted: Nov 24, 2015
Published online: Feb 1, 2016
Published in print: Jun 1, 2016
Discussion open until: Jul 1, 2016
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