Engineers' Society of Western Pennsylvania

Location

337 Fourth Avenue
Pittsburgh, PA 15222

Phone: (412) 261-0710 Email: eswp@eswp.com Get Directions
Loading Events

« All Events

  • This event has passed.

An ESWP Program Committee Webinar: CSVT Bridge

May 17 @ 12:00 pm - 1:00 pm

CSVT Bridge: Design and Construction Challenges

The CSVT River Bridge is a key component to a new 13-mile stretch of highway near Selinsgrove and Northumberland, Pennsylvania. The bridge is a six-lane, 15-span, 7/8-mile-long multi-girder structure comprised of three independent 5-span steel superstructure units. The eight 9′-6″-deep steel plate girders are spaced at 12′-3″ and reach a maximum span length of 350′.
The bridge substructure consists of hammerhead piers on either spread footings or drilled caisson foundations. Ranging from 70′ to 180′ above the footings, the pier heights vary along the length of the bridge. The height of the piers and the proposed pier stem cross-section places the piers outside AASHTO slenderness limits, which required advanced analyses of second-order effects in lieu of the typical approximate method used for estimating second-order effects.

This presentation covers the challenges of designing and optimizing long span steel multi-girders, lateral bracing, diaphragms, and slender piers, as well as the consideration of substructure system interaction. Construction challenges and issues will be discussed as well.

Presenters are:

Jason DeFlitch, PE, SAI Consulting Engineers, Inc.
Matthew T. Stahl, PE, Trumbull Corporation
Ahmad K. Ahmadi, PhD, PE, SAI Consulting Engineers, Inc.

Details

Date:
May 17
Time:
12:00 pm - 1:00 pm
Event Category:

Venue

Virtual Event

Organizer

ESWP
Phone:
412-261-0710
Email:
eswp@eswp.com
View Organizer Website