Fragility Assessment of Combined Heavy Timber-Steel Bracing System Through Hybrid Simulation

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  • This study performs a fragility assessment of a combined heavy timber-steel friction braced framing system through hybrid testing. In this study, one bottom storey bay of a 7 storey prototype structure is physically tested in the laboratory while the remaining lower bays and the upper 6 storeys are modeled numerically in OpenSees. One hundred and sixty five hybrid tests are performed through incremental dynamic analysis and fragility curves are developed to estimate the probability of damage at varying seismic intensities. The prototype structure is assessed at various performance levels including design and maximum credible hazard levels. The results from the hybrid test are compared with the results from the purely analytical simulation to assess the accuracy of the current finite element modeling techniques. Results show good agreement up to 2.0 percent maximum interstorey drift. The modeling system exhibits predictable behaviour and experimental results indicate the model is conservative.

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  • Copyright © 2018 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
Date Created
  • 2018


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