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ASCE COPRI Seattle Chapter Monthly Dinner Meeting - April 26, 2017
Mirabella Seattle
Seattle, WA
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ASCE COPRI Seattle Chapter Monthly Dinner Meeting - April 26, 2017
An update on ASCE 61-19 Committee discussions regarding pipe piles

The ASCE 61 committee is currently developing provisions for the next edition, ASCE/COPRI 61-19 Seismic design of Piers and Wharves .  A proposed  approach has been submitted by the presenter to the committee for discussion regarding the seismic design of unfilled pipe piles including revised strain limits.

The presentation will  summarize the results of research involving  cyclic tests of steel pipe piles performed at North Carolina State University (NCSU) funded by the Alaska DOT, and the U.S. Army Corps of Engineers and others that indicate unfilled pipe piles of the diameters and wall thickness  (D/t ratio) commonly used in marine waterfront construction, may be susceptible to local buckling of the shell during seismic loading.  

Bob Harn, P.E., S.E., M.ASCE

Bob Harn is a Senior Project manager with BergerABAM.   Bob received his Bachelor of Science degree from Montana State University, and has 39 years of experience as a civil and structural engineer of which 35 years have been with BergerABAM.  His well -rounded career includes experience in buildings, bridges, industrial and marine structures although his focus for the last 20 years has been marine structures, with a specialty in the seismic design of pile-supported piers and wharves.

Bob serves a task committee chair for the ASCE/COPRI 61-14, Seismic Design Supported Piers and Wharves.  He has authored/coauthored 20 papers including 16 at Ports conferences.  

In 2015,  Bob  received  the American Society of Civil Engineers (ASCE) TY Lin Award for co-authoring the paper Seismic Stability of Piers Built with Prestressed Concrete Piles.



Mirabella Seattle (View)
116 Fairview Ave N
Seattle, WA 98109
United States

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Kid Friendly: No
Dog Friendly: No
Non-Smoking: Yes!
Wheelchair Accessible: Yes!



Drew M.
Reid Middleton Inc.
Everett, WA United States
Apr 25, 2017 2:10 PM
Ivy H.
GeoEngineers, Inc.
St. Francisville, LA United States
Apr 25, 2017 2:06 PM
Michael M.
Pacific Pile & Marine
Seattle, WA United States
Apr 25, 2017 1:20 PM
Matt V.
Hart Crowser
Seattle, WA United States
Apr 25, 2017 8:40 AM
Matthew A.
Anchorage, AK United States
Apr 25, 2017 8:20 AM
Garry H.
Hart Crowser
Seattle, WA United States
Apr 25, 2017 8:12 AM

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