“Best of IBC” Webinar Series
The Best of IBC Webinar Series is a great way to preview the high quality technical content presented at the International Bridge Conference® and attendees can earn 1 PDH credit.
It is FREE to attend, but registration is required for pdh certification. Multiple viewers on one computer will be required to sign in on the required form distributed at the webinar.
Accelerated Bridge Construction, Part II
IBC 18-101: Pennsylvania Turnpike Bridge WB-224B – Sliding into the Future of Transportation
Lisa Hoeke, P.E., Tunstall Engineering Group, Cranberry Township, PA; Eric Hayes, P.E., Sucevic, Piccolomini, & Kuchar Engineering, Inc., Uniontown, PA; Calvin Boring, Advantage Steel and Construction, Saxonburg, PA
The Pennsylvania Turnpike Bridge WB-224B project was the superstructure replacement of existing dual two-span PS concrete non-composite adjacent box beam bridges which carry the Pennsylvania Turnpike mainline over Brush Creek in Beaver County, PA. The superstructures were replaced using the Accelerated Bridge Construction (ABC) method known as Slide-In-Bridge-Construction during a 55-hour closure of the Turnpike. It was the first bridge to be constructed using ABC methods on the Pennsylvania Turnpike.
IBC 18-104: The Big Slide: Replacing Dual Bridges in One Weekend
Quentin Rissler, P.E., Larson Design Group, Lititz, PA; Phil Carper, Road-Con, Inc, West Chester, PA
Dual interstate bridges were replaced in Lehigh County, PA with a single weekend closure for the Pennsylvania Turnpike Commission by the contractor / engineering team of Road-Con, Inc and Larson Design Group. After the team evaluated multiple lateral slide systems, an innovative lateral sliding procedure – a first for the Turnpike and one of the few in Pennsylvania – was developed with a focus on incorporating contingencies and streamlining the process to avoid stiff liquidated damages.
Allison Halpern, P.E., Ph.D., O. Murat Hamutcuoglu, and John Bryson, HNTB Corporation, New York, NY
Title: IBC 18-81: Erection Engineering for the Eastbound Cable-Stayed Spans of the Kosciuszko Bridge
HNTB served as the Erection Engineer of the eastbound cable-stayed spans constructed during Phase I of the Kosciuszko Bridge Replacement Project. A 3D finite element model was developed to perform staged construction analyses; the model was continually calibrated to reflect changes in construction sequence and load placement by using survey data to capture as-built geometry and stress conditions. Analysis results informed stay cable installation forces and composite stay cable adjustments to provide geometry control measures.
Ben Pendergrass, P.E., Ph.D., and John Boschert, Genesis Structures, Kansas City, MO; Andy Shorten, Greg Bair Track Hoe, Overland Park, KS
Title: IBC 18-83: Demolition of the Broadway Bridge over the Arkansas River
This paper details the demolition of the 93-year-old Broadway Bridge over the Arkansas River. The bridge comprised of 37 concrete-girder spans, three concrete-arch spans, and a single steel-arch span. Demolition activities occurred simultaneously with new construction over a short duration, requiring multiple machines to operate on the bridge at once for deck and girder removal. Following deck removal, explosive demolition techniques were utilized for removal of the concrete arch spans and steel arch span.
IBC 18-21: Queensferry Crossing – quality and value in design-build
Matthew Carter, Arup, New York, NY; Richard Hornby, Arup, Leeds, United Kingdom; Naeem Hussain, Arup, Kowloon Tong, Hong Kong, China; Iain Murray, Jacobs, Edinburgh, United Kingdom
The Queensferry Crossing in Scotland was recently opened at an outturn cost of $1.8Bn, compared to the original forecast of $4.4Bn. The 1.6 mile long cable stayed bridge, with back to back main spans of 2,130ft each, is highly acclaimed as being of outstanding quality and will stand alongside two historic bridges. Key decisions in the procurement, including up-front investment by the owner, led to price certainty, value for money and high-quality architecture.
IBC 18-22: Bonner Bridge – Innovation, Economy, Durability in a Challenging Environment
Domenic Coletti, P.E., Elizabeth Howey, LG, P.E., and John Jamison, AICP, HDR, Raleigh, NC; R. Dominick Amico, P.E., HDR, Charlotte, NC; Nicholas Burdette, P.E., HDR, Pittsburgh, PA; Phil Dompe, P.E., INTERA, Inc., St. Augustine, FL; Mohit Garg, P.E., HDR, Tampa, FL
The design-build replacement of the Herbert C. Bonner Bridge, which carries NC Highway 12 over Oregon Inlet, required a 100-year service life, design for up to 84’ of scour, and minimal environmental impacts. The associated design and construction challenges provided opportunities for innovation and creativity. The resulting 2.8 mile long bridge features extensive use of precast concrete for quality, durability, economy, and constructability, a first-of-its-kind driven pile foundation verification method, and innovative, environmentally-sensitive construction approaches.