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November 7th Meeting: "Bridge Foundations: Constructability Issues In The Design And Selection Process"

posted Oct 2, 2017, 4:12 PM by robert miller   [ updated Oct 14, 2017, 9:54 AM ]
Presented by Steve W. Fung, PE
Schnabel Engineering, LLC. 
Email: sfung@schnabel-eng.com

**Receive 1.0 Professional Development Hours**

Topic Description:
Bridge foundations are designed based on the AASHTO LRFD Design Specifications, 7th Edition, 2014.  The specifications provide design guidelines for the design of different foundation elements, however, the selection of the appropriate foundation type for support of the bridge structure is ultimately the responsibility of the designer.  The selection of the appropriate foundation type is typically based on one or more of the following factors:
        •The magnitude and type of foundation loads. 
        •The subsurface conditions at the site
        •Cost of the foundation type
        •Special design considerations such as scour and downdrag loads
        •Availability of technology and local practice
        •Constructability

 For designers to fully incorporate constructability into their design, the designers must have a thorough knowledge of the construction process; experience in the construction planning process and field operations; and knowledge of the available technology and resources, to achieve the overall project objectives.  Most designers do not have this level of knowledge, therefore, while constructability is already practiced to some extent by designers, some aspects of constructability is sometimes overlooked in the design and selection process of foundations – which could lead to project delays, cost overruns, or even litigation.   

This presentation provides an overview of some of the constructability issues related to different foundation types, and discusses some of the constructability issues that the designer should evaluate when selecting foundations in the following environments: 
        •Urban fill
        •Soft compressible soils
        •Lateral resistance
        •Available space/Site constraints
        •Karst/Sinkholes
        •Scour
        •Depth to rock

Speaker Bio:
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 deep and shallow bridge foundation design, design of support of excavation walls, slope stabilization design, and the evaluation of soil-structure interaction problems.  

Steve 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, November 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

Nearby Parking: 
601 N Calvert St, Baltimore, MD 21202

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 “SEI Meeting” in the memo spot on the check.
Credit card payment also available via PayPal.
ESB Dress Code: Jacket required, Tie optional.
 

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