Force-Based Design Method for Force-Limiting Deformable Connections in Earthquake-Resistant Buildings
This article has been corrected.
VIEW CORRECTIONPublication: Journal of Structural Engineering
Volume 148, Issue 10
Abstract
This paper proposes a force-based design method for force-limiting deformable connections that are used to transfer seismic-induced horizontal forces from the floor diaphragms in buildings to the vertical elements of lateral seismic force–resisting systems with base flexural mechanisms (e.g., reinforced concrete shear walls). The design method determines the limiting forces for the connections at each floor of the building. The limiting forces for the connections are the forces at which the force-limiting deformable connections transition from linear-elastic to post-elastic response. Design examples are presented. Seismic responses from numerical simulations of 12-, 8-, and 4-story reinforced concrete shear wall example buildings show that the proposed method enables effective preliminary design of the force-limiting deformable connections. It is shown that the buildings with connections designed with the proposed method have relatively uniform distribution of connection deformation demands over the building height. It is also shown that their seismic force and acceleration responses have reduced magnitude and reduced variability compared to conventional buildings that exhibit large variability in their acceleration responses.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request. Experimental data from previous research conducted for the development of the force-limiting deformable connections and the development of the friction devices referenced in this paper are available at DesignSafe-CI (Tsampras and Sause 2014a, b; Fleischman et al. 2014).
Acknowledgments
The authors are grateful for financial support provided by Lehigh University and the Advanced Technology for Large Structural Systems (ATLSS) Engineering Research Center. Any opinions, findings, and conclusions expressed in this paper are those of the authors and do not necessarily reflect the views of others acknowledged here.
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Journal of Structural Engineering
Volume 148 • Issue 10 • October 2022
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© 2022 American Society of Civil Engineers.
History
Received: Oct 19, 2021
Accepted: May 12, 2022
Published online: Jul 21, 2022
Published in print: Oct 1, 2022
Discussion open until: Dec 21, 2022
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Cited by
- Martina Paronesso, Dimitrios G. Lignos, Seismic design and performance of steel concentrically braced frame buildings with dissipative floor connectors, Earthquake Engineering & Structural Dynamics, 10.1002/eqe.3733, 51, 15, (3505-3525), (2022).