Seismic Design Guidelines for Solid and Perforated Hybrid Precast Concrete Shear Walls
by Yahya (Gino) Kurama, Ph.D, P.E.
June 30, 2020; 11:00 AM - 1:00 PM Pacific Time
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Seminar Description
This presentation will discuss recommended seismic design and detailing guidelines for special hybrid panelized precast concrete shear walls (with and without perforations), including supporting experimental evidence from six 0.4-scale test specimens and a full-scale worked design example. Hybrid precast walls use a combination of deformed Grade 60 bars and high-strength unbonded posttensioning strands for lateral resistance across horizontal joints. The mild steel bars crossing the base joint are designed to yield in tension and compression, providing energy dissipation. The unbonded posttensioning steel provides self-centering capability to reduce the residual lateral displacements of the structure after a large earthquake. The proposed design guidelines include important detailing considerations for the reinforcement at the base as well as the upper floor joints and around the panel perforations. These recommendations are aimed to allow practicing engineers and precast concrete producers to design ACI-compliant special hybrid precast shear walls with predictable and reliable seismic behavior. Ultimately, the results from this project, which was funded by the Charles Pankow Foundation and the Precast/Prestressed Concrete Institute, support the U.S. code approval and practical application of the hybrid precast wall system as a special reinforced concrete shear wall for moderate and high seismic regions.The views and opinions expressed in this seminar are those of the speaker(s) and do not necessarily reflect those held by S. K. Ghosh Associates LLC.
Speaker Bio
Registration Information
1 Connection | Each Additional Connection | |||||
Early Registration Discounted Fee* | $260 | $60 | ||||
Regular Fee | $275 | $65 | ||||
* Registration on or before June 28, 2020 |
All attendees, irrespective of the number of registered connections, can earn 0.2 Continuing Education Units (CEUs) or 2.0 professional development hours (PDHs). CEU/PDH certificates are provided free of charge.
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