Seismic Design Series Part #3 | Pile Foundations and Grade Beams

The presentation includes a review of Examples 5 and 6 of Volume 3 of the SSDM. Example 5 pertains to the design of a cast-in-place concrete pile foundation. The foundation addressed in the example is a post-tensioned concrete parking garage. However, the pile design methodology is applicable to any building. The presentation includes recommendations for coordination with the geotechnical engineer, determination of the most cost-effective geotechnical pile capacity for the project, determining the number of piles at each location, geotechnical and structural design of the piles to resist vertical and lateral loading, distribution of base shear, review of applicable Code requirements and recommendations for detailing. Example 6 explores three approaches to designing pile foundations that support a moment-resisting frame: stiff grade beam designed for amplified loads; flexible grade beam with ductile detailing; and individual caps resisting moments through pile axial loads.

• Course will award 1.5 hours of continuing education
• This course is Diamond Review approved in 49 states. New York does not accept hours from recordings.

Please note: This webinar is part of the Seismic Design Series and is not included in the NCSEA Webinar Subscription.

Speaker:

Stephen Harris, S.E., has practiced structural engineering for over 35 years and is a principal at Simpson Gumpertz & Heger Inc.  His experience includes design of new structures, seismic strengthening of existing structures and design of pile foundation systems. His pile foundation designs include the 49ers Levi’s Stadium, Facebook’s new West Campus, Samsung’s new American Headquarters in San Jose, and the new SFO Control Tower. Other noteworthy projects include the seismic upgrade of the War Memorial Veterans Building in San Francisco, the expansion, remodel, and seismic upgrade of the J. Paul Leonard & Sutro Library at San Francisco State University, the design of the 29-story 199 Fremont office building in San Francisco and the design of forty-two new Bachelor Enlisted Quarters buildings at USMC Base, Camp Pendleton, CA.

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