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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
Titel

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.
Zeitschrift
Advances in structural engineering
Thumbnail Image
DOI
10.1177/1369433217753695
Language
English
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Fraunhofer-Institut für Holzforschung Wilhelm-Klauditz-Institut WKI
Tags
  • damping device

  • friction

  • laminated timber

  • moment frame

  • seismic

  • shake table

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