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Webinar: Adjustments Needed in the ACI 318-19 Design and Detailing Requirements for Special Reinforced Concrete Shear Walls

February 15, 2023 @ 11:00 am - 1:30 pm

It is common knowledge by now that very major changes in the design and detailing requirements for special shear walls was made in ACI 318-19,, which goes into effect in California on January 1, 2023. Among the most important of the changes from ACI 318-14 are the following:

  1. Shear amplification – design shear (required shear strength) Vu of ACI 318-14 is required to be amplified by a factor of up to 3 (similar to New Zealand, Canada).
  2. Improved wall boundary and wall web detailing – required are overlapping hoops if the boundary zone dimensions exceed 2:1, crossties with 135-135 degree hooks on both ends, and 135-135 degree crossties on web vertical bars.
  3. Check on mean top-of-wall drift capacity at 20% loss of lateral strength – a low probability of lateral strength loss at MCE-level hazard is required, and
  4. Minimum wall boundary longitudinal reinforcement – this is required to limit the potential of brittle tension failures for walls that are lightly reinforced.
  5. Severe restrictions on lap splice locations.

Details

Date:
February 15, 2023
Time:
11:00 am - 1:30 pm
Event Category:
Website:
https://www.skghoshassociates.com/seminar-id-SK2022SWL0023/

Venue

Webinar
Webinar United States

Organizer

S. K. Ghosh Associates
Phone:
847-991-2700
Email:
kbhaumik@skghoshassociates.com
Website:
skghoshassociates.com