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March 7th Meeting: "AASHTO LRFD Pile Drivability Requirement – Why We Should Care"

posted Feb 18, 2017, 6:08 AM by robert miller   [ updated Feb 18, 2017, 6:15 AM ]
Presented by Steve W. Fung, PE
Schnabel Engineering, LLC. 

**Receive 1.0 Professional Development Hours**

Topic Description:
The LRFD design of driven piles as outlined in AASHTO LRFD Bridge Design Specifications, 7th Edition, requires that a pile drivability analysis be performed during design to confirm that the piles can be installed to the nominal bearing resistance within acceptable driving stresses and blowcounts; and achieve the minimum tip elevation, with an available pile driving system.  

Pile drivability is often overlooked when designing piles, and is often the most common problem during the installation of pile foundations.  Pile drivability was not typically performed in the past, under the ASD code.  However, as the industry moves to the LRFD code, pile drivability is now an important aspect of pile design requirement under the LRFD code, but pose something of a paradox – how does the designer evaluate pile drivability during design if they do not know what equipment the contractor will use to install the pile?  This presentation addresses this issue and will discuss following topics: 
  • The AASHTO LRFD driven pile requirement and how it is considered in the design of driven piles; 
  • Drivability Analysis - what it does, things to consider when performing a drivability analysis, and why it’s important to perform during the design phase;
  • Drawing Notes and Spec Language – what information the designer should place on the plan sheets and in the pile specifications;
  • Dynamic Testing and CAPWAP - what it does, what the results look like, and how to use or review the results.

Presenter Bio:
Mr. Steve Fung is a senior associate at Schnabel Engineering and has over 15 years of experience in geotechnical engineering analysis and design, construction inspection services, and project management.  He has a Bachelor of Science in Civil Engineering from the University of Guyana and a Master of Science in Civil Engineering from the Johns Hopkins University, and is a registered professional engineer in the District of Columbia, Maryland, New York, and Pennsylvania.  

He has specialized geotechnical engineering experience in design of support of excavation walls, slope stabilization design, and evaluation of soil-structure interaction problems.  

Mr. Fung has served as Secretary and Vice-President on the board of the Maryland chapter of the American Society of Civil Engineers (ASCE) Structural Engineering Institute. 

Evening Schedule:
Event Date: Tuesday, March 7th  
6:00 – 7:00 PM: Registration/Deli Buffet/Open Bar
7:00 – 8:00 PM: SEI Announcements and Presentation
8:00 – 8:15 PM: Q&A and Closing Remarks

Cost for this Event:
SEI-MD Member from Sponsored firm = $25
Non-member from sponsored firm = $30
Dues Paying SEI-MD Member from non-sponsored firm = $40
Non-member from non-sponsored firm = $45
Full-Time Students = FREE
Event Location:
The Engineers Society Of Baltimore (ESB)
Garrett-Jacobs Mansion
11 West Mount Vernon Place
Baltimore, Maryland 21201

Event Details:
(1) PDH awarded with attendance.
RSVP via Web Link to Sign-up Form 
Reservations will be considered firm and billed unless cancelled by no later than Friday noon prior to event.
Billing for late canceled reservations will be billed at the highest rate.
Checks or cash payable at the door. Checks payable to: “ASCE Maryland Section”.  Add a note indicating “March SEI Meeting” in the memo spot on the check.
Credit card payment also available via PayPal.
ESB Dress Code: Jacket required, Tie optional.