Numerical Seismic Performance of an Innovative CFS Midrise Building Designed Using DDD
Publication: Journal of Performance of Constructed Facilities
Volume 28, Issue 5
Abstract
Light-gauge cold-formed steel (CFS) is being used more and more as an economical and high performing construction material. In this paper, a numerical study of the seismic performance of an innovative light-gauge cold-formed steel midrise building designed using direct displacement design (DDD) is presented. This new system, termed a uniform truss construction system (UTCS), includes floor trusses, open panels, v-braced panels, columns, and connections between components. A series of reversed-cyclic tests of subassembly structures was conducted to provide the key information to understand the performance of the system under cyclic loading. The test data was then integrated into a numerical model for nonlinear time history analysis. A simplified shear element was developed to represent the panels as well as the floor diaphragm in the numerical model of the system. Nonlinear time history analysis of the building was conducted using a suite of 22 prominent earthquakes recorded from around the world. The results show that the building performs very well compared with the required performance criteria at the global level.
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Acknowledgments
The UTCS is a product of Prescient Companies and patents are pending on the system. The information, specimens, and funding for this paper was provided by Prescient Companies, and that support is gratefully acknowledged. Detailed assistance was provided by Michael Lastowski and John Vanker of Prescient Companies.
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Published In
Journal of Performance of Constructed Facilities
Volume 28 • Issue 5 • October 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Apr 20, 2013
Accepted: Oct 18, 2013
Published online: Oct 21, 2013
Published in print: Oct 1, 2014
Discussion open until: Oct 28, 2014
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