Pieroni, Ludovica;
Araujo R., Gustavo A;
Simpson, Barbara G;
Freddi, Fabio;
Mishra, Prashanna;
Barbosa, André R;
Sinha, Arijit;
... Brown, Nathan; + view all
(2024)
Estimating first and higher-mode effects for the design of rocking mass timber walls with controlled overturning moments.
In:
Proceedings of the 18th World Conference on Earthquake Engineering (WCEE 2024).
International Association for Earthquake Engineering: Milan, Italy.
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Abstract
To address functional recovery after earthquakes, there is growing interest in developing enhancedperformance seismic-resisting systems. Rocking walls, featuring a base gap-opening mechanism and designed to remain essentially elastic above the base, have demonstrated their potential in various construction materials, including mass timber. If combined with steel energy dissipators, the resulting hybrid steel-mass timber rocking walls have emerged as a promising seismic-resisting system. This study focuses on Post-Tensioned Mass Timber Rocking Walls supplemented with Buckling-Restrained Brace (BRB) boundary elements and builds upon findings from experimental programs funded by the National Science Foundation (NSF) and the United States Department of Agriculture (USDA). The rocking mechanism, controlled by the BRBs and the Post-Tensioned (PT) rods, provides self-centering behaviour, reducing the potential for residual drifts and improving post-earthquake repairability. An estimating method for higher-mode loading profiles is proposed and applied to a six-story archetype, which was tested at the Large High Performance Outdoor Shake Table (LHPOST) at the University of California San Diego (UCSD) in January 2024 as part of the NHERI Converging Design Project. The estimating method is practically formulated to facilitate the implementation in design procedures.
| Type: | Proceedings paper |
|---|---|
| Title: | Estimating first and higher-mode effects for the design of rocking mass timber walls with controlled overturning moments |
| Event: | 18th World Conference on Earthquake Engineering (WCEE 2024) |
| Location: | Milan, Italy |
| Dates: | 30th June - 5th July 2024 |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | https://www.wcee2024.it/ |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10195581 |
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