Safe Seismic Design of Intermediate Precast Shear Wall System
Publication: Journal of Structural Engineering
Volume 150, Issue 9
Abstract
ACI 318-19 and ASCE 7-22 specify code-compliant and emulative seismic force-resisting systems (SFRS) including intermediate precast shear wall systems. For the seismic design of a precast shear wall system, its successful performance heavily depends on the capacity design of inevitable discrete connections between precast wall panels, thus playing a critical role in controlling yielding to occur within steel reinforcements at the vicinity of intended locations or components. This is imperative for achieving not only ductility but also adequate energy dissipation, ensuring the system can effectively withstand seismic forces. To this end, the overstrength is essentially required to prevent any brittle failure, and the connections designed not to yield can be protected by addressing the condition as specified in ACI 318-19 and ASCE 7-22. However, there can be a blind spot for the precast connections designed to yield. To this end, this study showed some cases based on practical examples from which a reasonable magnitude of overstrength () was tentatively recommended for better safety in the seismic design of the intermediate precast shear wall system with precast connections designed to be yielded.
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Data Availability Statement
Some or all data, models, or code generated or used during the study are available from the corresponding author by request.
Acknowledgments
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. RS-2023-00209647). Also, this work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (NRF-2021R1A2C1012314). The author would like to express sincere gratitude to Korea Concrete Institute (KCI) Technical Committee 108–Precast Concrete for allowing meaningful discussions to realize the safe seismic design of PC structures.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 150 • Issue 9 • September 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Oct 9, 2023
Accepted: Mar 27, 2024
Published online: Jun 17, 2024
Published in print: Sep 1, 2024
Discussion open until: Nov 17, 2024
ASCE Technical Topics:
- Business management
- Connections (structural)
- Earthquake engineering
- Engineering fundamentals
- Geotechnical engineering
- Organizations
- Practice and Profession
- Professional societies
- Public administration
- Public health and safety
- Safety
- Seismic design
- Seismic tests
- Shear walls
- Structural engineering
- Structural members
- Structural systems
- Tests (by type)
- Walls
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