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High-Performance Fiber-Reinforced Concrete in Design of Shear Wall Coupling Beams webinar

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"Use of High-Performance Fiber-Reinforced Concrete in Design of Earthquake Resistant Shear Wall Coupling Beams" is a webinar in the Research to Practice Webinar Series co-produced by the Network for Earthquake Engineering Simulation (NEES) and the Earthquake Engineering Research Institute (EERI).

Coupled shear wall systems are the most commonly used seismic force-resisting system for moderate to high-rise reinforced concrete (RC) structures. This presentation highlights background research and field applications on the use of high-performance fiber-reinforced concrete (HPFRC) in coupling beams that link together adjacent shear walls. During large earthquake motions, it is anticipated that coupling beams will undergo significant inelastic deformations and it is important for these beams to have a high energy dissipation capability and good stiffness retention. Current design practice is to use heavy diagonal reinforcement in RC coupling beams, but the placement of such reinforcement is labor intensive and costly. The primary concept behind this research was that the next generation of RC structures should utilize ductile concrete in critical regions that are expected to experience plastic deformations, rather than expensive reinforcement detailing, to provide shear resistance and concrete confinement. This presentation will cover mix design information and behavior of HPFRC, observed behavior of individual precast HPFRC coupling beams subjected to large cyclic displacement reversals as well as results from tests of two four-story coupled wall systems, and design and construction procedures for buildings under construction in the Seattle area.

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Credits and References

Presented by: James K. Wight, University of Michigan; Gustavo J. Parra-Montesinos, University of Wisconsin; and Cary Kopczynski, Principal Cary Kopczynski & Company

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Researchers should cite this work as follows:

  • (2013), "High-Performance Fiber-Reinforced Concrete in Design of Shear Wall Coupling Beams webinar,"

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