Friday, June 11, 2021
Time: 9:00 – 11:30 AM
IBC 21-70: Rope Tensioning, Span Balancing, Gear Indexing, and Seating Corrections of 3 Vertical Lift Bridges
Robert Algazi, WSP USA, Lawrenceville, NJ; Rama Krishnagiri, WSP USA, Inc., Lawrenceville, NJ; Michael Abrahams, WSP USA, Inc., New York, NY; Georgio Mavrakis, New Jersey DOT, Ewing, NJ; Gerald Oliveto, New Jersey DOT, Ewing, NJ
Three major vertical lift bridges owned and maintained by New Jersey Department of Transportation are included in this preventive
maintenance work plan for wire rope tensioning, span balancing, gear indexing, and span seating corrections to proactively resolve existing
operational issues, preserve and extend the life of the ropes and operating machinery. We will share the design aspects, unanticipated
construction problems and collaborative solutions, to maintain the project schedule and meet the goals within budget.
IBC 21-71: Structure Health Monitoring and Dynamic Response of Two More than Century Old Truss Railroad Bridges
Celso de Oliveira, University of Connecticut, Storrs, CT; Sachin Tripathi, University of Connecticut, Storrs, CT; Ramesh Malla, Ph.D., F. ASCE, F. EMI, University of Connecticut, Storrs, CT
Most of the New England railway bridges were design and built more than a century ago. It is imperative to determine their current dynamic characteristics due to the actual loading and vehicle type to ensure the bridge and passenger safety. This paper presents the Dynamic study of the two old railroad bridges located in Connecticut. This study used different sensors to collect the structural response for both controlled and service loading.
IBC 21-72: ALL EYES ON THE ICON: Navigating the Type Selection Process of the I Street Lift Bridge
Noel Shamble, T.Y. Lin International, Los Gatos, CA
IBC 21-73: Challenges in Design and Analysis of a Concrete Tied Arch Bridge for High Speed Rail
Hadi Al-kHateeb, Jacobs, New York, NY; Arjuna Ranasinghe, Jacobs, New York, NY; Seth Greenberg, Jacobs, New York, NY
IBC 21-74: Understanding Changeable Wind Conditions Affecting Pedestrian Bridges
Pierre-Olivier Dallaire, RWDI, Guelph, ON Canada
IBC 21-75: The Kâhasinîskâk Pedestrian Bridge in Edmonton: Parametric design for user comfort
Pierre-Louis Cons, Arup, Montréal, QC Canada
The 64-meter footbridge spans over the new Valley Line light-rail line in Edmonton. While durability and aesthetics were central to the bridge design, it is vibration requirements that lead to parametric design: through an iterative design process, both pedestrian comfort and remarkable slenderness were achieved.
With two double-curved steel girders and inclined guardrails of variable height, the weathering steel bridge now creates a unique visual effect
and offers an exceptional view of downtown.
IBC 21-76: Use of Spliced Girders for Long-Spans Crossing Environmentally Sensitive Areas
Sami Megally, Kleinfelder, San Diego, CA; Keith Gazaway, Kleinfelder, San Diego, CA
This paper presents an example of innovative structural engineering solutions for bridges crossing environmentally sensitive areas while maintaining unique architectural features that make bridges remarkable. Spliced girders were used for the long span crossing the environmentally sensitive canyon. The paper presents structural design and construction challenges, as well as architectural features which include curvatures in edge of deck, metal railings with varying inclination, architectural treatments and Lithocrete finish on deck slab of this award-winning bridge.
Time: 11:30 AM – 12:30 PM
IBC 21-77: An Innovative and Robust Sinkhole Repair for PennDOT
Thomas Leckrone, P.E., C.B.S.I., P.M.P., Gannett Fleming, Inc., Camp Hill, PA; Ray Stauffer, P.E., Gannett Fleming, Inc., Camp Hill, PA; Glenn Seibert, P.E., Gannett Fleming, Inc., Camp Hill, PA; Frank Namatka, P.E., Gannett Fleming, Inc., Camp Hill, PA
On July 2, 2019, PennDOT District 8-0 and Gannett Fleming formed a rapid design team to remediate a large sinkhole that closed SR 422, a main thoroughfare through Lebanon County. The project team developed a plan of bridging the sinkhole-prone area with a 2-foot-thick, 280-foot-long x 38-foot-wide concrete roadway slab supported with 84 steel micropiles in a 10-foot x 15-foot grid. These micropiles were drilled into competent bedrock as deep as 180 feet.
IBC 21-78: Substantial Downdrag Requires a Micro Solution
Craig Klusman, AECOM, Louisville, KY; Blake Jones, KYTC, Flemingsburg, KY; Joseph Hauber, Geotechnology, Erlanger, KY
IBC 21-79: Design-oriented Geostatistical Calculation of Pile and Shaft Axial Capacities
Michael Davidson, Ph.D., P.E., and Michael McVay, University of Florida, Gainesville, FL; Michael Faraone, TerraSmart, Fort Myers, FL; Rodrigo Herrera, Florida DOT, Tallahassee, FL
W16: Ultra-High Performance Concrete (UHPC) for Bridge Preservation and Repair (Part 2): Expert Panel Discussion
Zachary Haber, Federal Highway Administration, McLean, VA
Time: 9:00 AM – 1:00 PM
W17: Balance Cantilever Bridges using a BIM Methodology
Alexander Mabrich, Bentley Systems, Sunrise, FL
Time: 9:00 – 10:00 AM
W18: Design and Construction of Steel Sheet Piling Structures
Richard Morales, LB Foster, Cumming, GA
Time: 1100 AM – 12:00 PM
The technical workshop will provide a general overview of various innovative solutions using Steel Sheet Piling for Deep Foundations, Case studies will include innovative solutions provided by collaboration with engineers and design-build contractors on projects such as 1) Pennsylvania Turnpike MSE SSP Wall, 2) NY Long Island Marine Development utilizing Open Cell, 3) Orange County (CA) Levee Capacity Increase utilizing silent “Push In Methodology” for SSP in a Congested Residential Neighborhood and 4) Cellular Steel SSP used for Expansion of the Panama Canal.