Gong, Nan;
Freddi, Fabio;
Li, Peizhen;
(2024)
Shaking table tests and numerical analysis of RC coupled shear wall structure with hybrid replaceable coupling beams.
Earthquake Engineering & Structural Dynamics
, 53
(5)
pp. 1742-1766.
10.1002/eqe.4088.
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Abstract
A variety of innovative structural solutions have been recently introduced to mitigate damage and expedite the repair of buildings subjected to extreme seismic events, hence contributing to the urgent need for resilient societies. In this context, the present study experimentally and numerically investigates an innovative reinforced concrete (RC) shear wall (SW) structure with replaceable coupling beams (CBs) equipped with hybrid devices. These hybrid devices couple metallic and viscoelastic dampers and aim at satisfying multiple lateral load performances effectively. To assess the seismic performance of the proposed coupled SW system and verify the design principle, comparative shaking table tests were performed on two 1/4‐scale seven‐story SW structure specimens, including a conventional RC coupled SW and the proposed coupled SW with hybrid devices. The tests results indicate the improved performance of the proposed compared with the conventional system in terms of: (1) reduced interstory drifts and story accelerations demand under a wide range of seismic intensities, (2) concentrated damage in the hybrid device and minimal damage to the other components contributing to the reparability of the structure. Furthermore, 3D finite element models for the shaking table test specimens were established in OpenSees and validated against experimental response. Successively, a numerical parametric study was conducted by performing non‐linear response history analyses under a set of 22 ground motions to investigate the influence of different design configurations of the hybrid device on the peak interstory drifts and peak story accelerations.
| Type: | Article |
|---|---|
| Title: | Shaking table tests and numerical analysis of RC coupled shear wall structure with hybrid replaceable coupling beams |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/eqe.4088 |
| Publisher version: | https://doi.org/10.1002/eqe.4088 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | coupled shear wall structure, earthquake resilience, hybrid devices, numerical simulation, replaceable coupling beams,This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. shaking table test |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science 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/10186467 |
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