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  4. Report on the seismic performance of three-dimensional moment-resisting timber frames with frictional damping in beam-to-column connections
 
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2018
Journal Article
Title

Report on the seismic performance of three-dimensional moment-resisting timber frames with frictional damping in beam-to-column connections

Abstract
The seismic performance of three-dimensional moment-resisting timber frames with frictional damping devices was investigated experimentally. This article describes a novel three-dimensional beam-to-column connection which was designed to behave rigidly up to moderate seismic intensities and to start the frictional dissipating behavior at higher intensities. The three-dimensional beam-to-column connection component was initially tested under cyclic loading, and then the connection was mounted in a three-level prototype frame and tested on a shake table. From the cyclic loading tests, the energy dissipation of the proposed beam-to-column connection was higher than the equivalent rigid connection. The frame demonstrated self-aligning capabilities without permanent drift at seismic intensities up to 1.4 g and maintained strength up to high seismic intensities of 2 g. Because wood frames allow for large elastic deflections and can exhibit excellent self-aligning capabilities (i.e., connections tolerate large rotations within safe stress levels), the proposed frictional beam-to-column connection is a promising alternative for moment-resisting timber frames that can be used to prevent structural members from reaching critical stresses.
Author(s)
Polocoser, T.
Leimcke, J.
Kasal, B.
Journal
Advances in structural engineering  
DOI
10.1177/1369433217753695
Language
English
Fraunhofer-Institut für Holzforschung Wilhelm-Klauditz-Institut WKI  
Keyword(s)
  • damping device

  • friction

  • laminated timber

  • moment frame

  • seismic

  • shake table

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