The Structural Engineers Association of Illinois is pleased to announce the 17th Annual Bridge Symposium, which provides a forum for engineers to share analysis, design, and construction information from recent projects with unique and/or distinguishing characteristics. Attendance typically represents a diverse cross-section of all aspects of the profession, including: design, construction management, material suppliers, academia, general contracting, and owners’ representatives.
The Symposium is comprised of a single day-long session including continental breakfast, refreshments, and luncheon.
The Symposium will include:
- 11 presentations (25-minutes presentation plus 5-minutes Q&A)
- 2 Pearl Sessions (5 minutes presentations), and
- 1 Keynote presentation
Attendees receive 7 PDHs/CEs hours of continuing education credit for the Symposium.
|7:30 am - 8:00 am||Registration/Breakfast|
|8:00 am - 8:10 am||Welcome and Introduction to the Symposium|
|8:10 am - 8:40 am||
Strategy to Assess the Aerodynamic Performance & Serviceability of a Suspension Bridge During a Planned Retrofit Program
|8:40 am - 9:10 am||Design and Construction of the New Frederick Douglass Memorial Bridge, Washington, D.C.
Jixing He, AECOM
|9:10 am - 9:20 am||Break - Visit Exhibitors|
|9:20 am - 9:50 am||FIU Pedestrian Bridge Collapse Forensic Investigation
William Godfrey and Perry Pinto, DeSimone Consulting Engineers
|9:50 am - 10:20 am||Investigation of FIU Pedestrian Bridge Collapse
Gary J. Klein, Wiss, Janney, Elstner Associates, Inc.
|10:20 am - 10:30 am||Break - Visit Exhibitors|
|10:30 am - 11:00 am||Load Rating of Steel Substructure Units in Unconventional Steel Bridges
Antonio Feng, Stantec
|11:00 am - 11:30 am||Pearl Session #1|
|Roselle Road a Simple, Aesthetically Pleasing Pedestrian Bridge
Salvatore Di Bernardo, Ciorba Group, Inc.
|A CM/GC Approach for the Design of a Two-Girder Horizontally Curved Pedestrian Bridge
Irvin J. Lopez, WSP USA, Inc.
|Rehabilitation of Cap & Column Pier Caps and T-type Piers – A Case Study
Dr. K.V. Balasubramanyam, Mead & Hunt, Inc.
|11:30 am - 11:40 am||Break - Visit Exhibitors|
|11:40 am - 12:10 pm||MASH TL-5 Testing of Six-Foot Tall Barriers with a Noise Abatement Wall
Ahmad Hammad, WSP USA, Inc.
|12:10 pm - 12:50 pm||Lunch|
|12:50 pm - 1:30 pm||Keynote Speaker - David Morill, Alfred Benesch & Company|
|1:30 pm - 1:40 pm||Break - Visit Exhibitors|
|1:40 pm - 2:10 pm||I-480 Valley View Bridge Structural Steel Erection Analysis
Randy Thomas, Jacobs
|2:10 pm - 2:40 pm||Enhancing Bridge Design with Architectural Lighting
Terry Sullivan, JLK Architects
|2:40 pm - 2:50 pm||Break - Visit Exhibitors|
|2:50 pm - 3:20 pm||National Assessment of New Construction Market Pricing for Highway Bridges
Tony Peterson, National Steel Bridge Alliance
|3:20 pm - 3:50 pm||New AASHTO Guide Specifications for Exploiting Steel Bridge Redundancy
Francisco Javier Bonachera Martin, Michael Baker International
|3:50 pm - 4:00 pm||Break - Visit Exhibitors|
|4:00 pm - 4:30 pm||Complex Bridge Replacement on an Accelerated Schedule
Mohamad Faraj, Illinois Tollway & Brett Sauter, Mary Lou Kutska, Ciorba Group
|4:30 pm - 4:55 pm||Pearl Session #2|
|Simon Kenton Bridge Temporary Suspender Retrofit
Jason Stith, Michael Baker International
|BIM Workflows: From Analysis to Fabrication
David Loughery, Allplan, Inc.
|Lightweight Modular Accelerated Bridge System For Managed Car Lanes
Sam Mittal, Horner & Shifrin
|4:55 pm - 5:00 pm||Adjourn and Raffle|
111 W. Grand Ave.
Early Bird Pricing is $285 for members and $360 for non-members until March 16, 2020 at 11:59pm. After that, prices will be $385 for members and $460 for non non-members.
Students registration is $100
Group Discount: for companies sending 5+ people, $50 off each registration fee; not available retroactively; must be applied on same order. Contact office@SEAOI.org for discount code.
The Symposium registration fee will be waived for presenting authors of a full presentation (not the Pearl session)
Limited Exhibitor Opportunities are available at $825 per space. Exhibitors will receive recognition in the program, one admission to the Symposium, and access to participants during breakfast, lunch and breaks during the day. For more information or to reserve your space online, please visit this page.
There are four different levels of corporate sponsorship. The following are the costs and respective benefits for each of the four levels.
Platinum: $1,000 – Recognition in program, display of poster exhibit at event, and recognition for sponsoring lunch.
Gold: $850 – Recognition in program, display of poster exhibit at event, and recognition during the technical session for sponsoring one of the following: Continental Breakfast, Morning Break or Afternoon Break
Silver: $600 – Recognition in program and display of poster exhibit at event
Bronze: $350 – Recognition in program
Companies interested in sponsoring this event are invited to register here.
About the Speakers
Pierre-Olivier Dallaire, M.A.Sc., P.Eng., RWDI
Pierre-Olivier has contributed engineering work to prominent bridge projects around the world. With a background in mechanical engineering and extensive experience in developing advanced numerical modelling techniques to support safe and efficient bridge designs, Pierre-Olivier is an asset to any design team.
Strategy to Assess the Aerodynamic Performance & Serviceability of a Suspension Bridge During a Planned Retrofit Program
In the recent years, important retrofit programs have been developed and scheduled in an effort to extend the service life of existing long-span bridges. To proceed with these retrofitting activities, platforms and tarps are typically temporarily installed on the deck and are expected to have an influence on the sensitivity of the structure to wind-induced vibrations. Because of the transient nature of the structure during this work, a strategy combining experimental methods (sectional model testing) and numerical predictions (time-domain response analysis) was employed to evaluate the bridge aerodynamic performance and to provide guidelines to the design team for the various evaluated construction schemes. This methodology focused on the following aspects: the evaluation of the bridge aerodynamic stability, a review of the predicted comfort for the users of the bridge and the effects of the various changes to the deck geometry on the overall wind loading. In particular, the percentage of the length of the main span and side spans that can be tarped without negatively influencing the aerodynamic stability of the deck is determined through this assessment. The potential for vibrations such as vortex-induced oscillations, galloping and flutter instabilities is carefully investigated considering a large number of platform & deck tarping scenarios and is compared against desired aerodynamic performance criteria. This presentation will outline the methodology applied for the aerodynamic performance evaluation and will describe the main findings and benefits of such an extensive evaluation. Case studies, including the iconic Golden Gate Bridge, will also be presented to highlight the key points and challenges that were addressed.
Jixing He, PhD, PE, SE, AECOM
Jixing received his PhD in Structural Engineering from Illinois Institute of Technology in 1990. He is specialized in highway steel & concrete structures with over 30 years of experience in design, analysis and construction. He has designed several large, complicated, innovative and award-winning highway bridges. In recent years he has worked on four arch and cable-supported signature bridges in three states.
Design and Construction of the New Frederick Douglass Memorial Bridge, Washington, D.C.
This presentation will focus on the technical aspects of designing a signature arch bridge. The 540-feet long multiple arch spans have many challenges technically including: stability of parallel unbraced arches; geometric control of variable depth hexagonal arches 7 to 14 feet deep; thermal movement of 3 sequential arches; critical steel arch base connections into post-tensioned concrete v-piers; use of cable-stay technology to support the superstructure including accommodation of rotation translation; 1800-ton capacity steel pipe piles; complex substructure shapes and water line footings; and impact avoidance of critical utilities including a 108-inch diameter force main. The presentation will discuss the design approach and methodology as well as the role of the bridge architect versus the designer and contractor. Additionally, the erection of the structure will be discussed in light of loads and stresses imparted on the structure during construction. Wind tunnel testing; technical provision security requirements; scour analyses; and a 100-year corrosion protection plan will be highlighted.
William Godfrey, SE, PE, DeSimone Consulting Engineers
William Godfrey currently works at DeSimone Consulting Engineers, an international engineering and forensic consulting firm, where they provide initial response, condition assessment, cause and origin determination, and repair/retrofit design services for buildings damaged by hurricanes, tornados, collapses, fires, building envelope failures, and other large losses as part of DeSimone’s Forensics Practice.
FIU Pedestrian Bridge Collapse Forensic Investigation
On March 15, 2018, the 175-foot-long post tensioned concrete FIU UniversityCity Prosperity pedestrian bridge collapsed over US Route 41 in southeastern Florida, resulting in six fatalities and injuring eight others. The bridge utilized a unique sculptural design incorporating a concrete truss and was constructed using the Florida International University’s Accelerated Bridge Construction technique. The structure was intended to be a signature landmark for the University. DeSimone mobilized to the collapse site on March 18, 2018 on behalf of our client, one of the major insurance carriers directly involved with the design and construction team for the bridge. DeSimone was tasked with documenting the post-loss condition of the bridge, performing a detailed structural analysis to determine the cause and origin of the collapse, evidence collection, and developing conceptual repair/retrofit design options.
Perry Pinto, P.E., DeSimone Consulting Engineers
Perry Pinto, PE currently serves as a Senior Project Engineer in DeSimone’s Chicago office as part of the firm’s Forensics Practice encompassing both pre- and post-failure/loss services. Prior to joining DeSimone, Mr. Pinto worked in the power industry successfully contributing to the completion of complex structural engineering projects for more than a decade.
Gary J. Klein, Executive Vice President and Senior Principal, Wiss, Janney, Elstner Associates, Inc.
Gary J. Klein is Executive Vice President and for Senior Principal for Wiss, Janney, Elstner Associates, Inc. For 40 years, Gary Klein has studied and delivered solutions for buildings and bridges suffering from deterioration, distress or failure. He has investigated numerous structural collapses including the 2018 collapse of the FIU pedestrian bridge in Miami. Mr. Klein, a licensed structural engineer, has authored more than 40 papers. In 2016, Mr. Klein was elected to the National Academy of Engineering for sharing lessons learned from infrastructure failure investigations.
FIU Pedestrian Bridge Collapse: Testing of Full-Size Replicas of Failed Connection
WJE was engaged by FIGG to carry out independent studies related to the collapse of the FIU pedestrian bridge. Among other studies, WJE developed and tested full-sized specimens to evaluate the significance of NTSB’s finding that the construction joint between the northernmost diagonal and deck was left in an as-placed condition rather than intentionally roughened as required by the project specifications. WJE’s tests demonstrated that had the construction joint been roughened as required by FDOT Standard Specifications, which were reconfirmed by e-mail prior to construction, the collapse would not have occurred. As such, WJE concluded that the collapse was due to a construction error rather than design.
Anthonio Feng, Stantec
Antonio Feng has over 3 years of structural and transportation design experience in buildings and transportation infrastructure. He has experience working with private developers and public state agencies such as MassDOT, LIRR, NYDOT, NYCT and BTD. He also serves as an assistant load rating engineer for the load rating work Stantec's NYC office performs with NYSDOT in Region 11.
Load Rating of Steel Substructure Units in Unconventional Steel Bridges
This presentation is about performing detailed level 1 load rating calculations of complex steel substructures for bridges in New York City. Previously, substructure ratings were not required as a part of the biennial inspection program but now, rating steel substructures are required. This presentation details the challenges we faced, and the overall procedure developed to perform the rating calculations.
Salvatore DiBernardo, SE, PE, Ciorba Group
Mr. DiBernardo has over 28 years of experience in inspection, concept studies, structural analysis, design and construction management for bridges and other transportation related projects. He is a past president of SEAOI who authored and presented papers to various international conferences. Mr. Di Bernardo received a Degree in Civil Engineering from the University of Rome, Italy; a master’s degree from MIT; and an MBA from the Kellogg School of Management.
Roselle Road a Simple, Aesthetically Pleasing Pedestrian Bridge
The project purpose is to improve pedestrian and bicycle accessibility along a heavily trafficked corridor at the north end of Schaumburg. Roselle Road, which carries over 33,000 vehicles per day in this location, had no means for pedestrians to get from the heavily residential area south of I-90 to the Paul Douglas Forest Preserve north of I-90 and Central Road. Given the high visibility of this crossing, the Village elected to emphasize the aesthetics of the bridge from a motorist and pedestrian perspective. To enhance the user’s experience the 5-span, 750’ long bridge features a gently S-shaped horizontal alignment with radii of 1,500’ and 1,075’. To cross over Central Road and a Tributary of Salt Creek, the bridge was scoped as 5 spans of 750’ total length.
Irvin J. Lopez, PE, WSP USA, Inc.
Irvin is part of the Movable Bridge Group at WSP. Since joining WSP in 2012, Irvin has worked on multiple complex steel and movable bridge projects across the country, including the Lake Shore Drive Bascule Bridge in Chicago. Prior to working at WSP, Irvin spent the first 3 years of his career at IDOT Bureau of Bridges and Structures. He is an alumnus of North Carolina State University (MS) and University of Puerto Rico (BS).
A CM/GC Approach for the Design of a Two-Girder Horizontally Curved Pedestrian Bridge
This presentation focuses on the unique design features and practical lessons learned for refined analysis of a unique two-girder pedestrian bridge. It will bring to light some of the benefits of the CM/CG process on complex bridge projects and its impact during the design phase. Discussion of a commonsense approach to investigating redundancy in pedestrian bridges will be presented.
Dr. K.V. Balasubramanyam, PhD, PE, Mead & Hunt, Inc.
Dr. Balasubramanyam (Bala) is Mead & Hunt’s Bridge Design Discipline Leader responsible for providing direction and quality assurance/quality control for various bridge rehabilitation and replacement projects throughout the country. Bala is a celebrated author of many articles pertaining to structural design and has taught structural engineering courses as an Adjunct Faculty for his alma mater the Ohio State University. His expertise encompasses nearly all types of prestressed concrete, steel and reinforced concrete bridges.
Rehabilitation of Cap & Column Pier Caps and T-type Piers – A case Study
With the reduced transportation funding pushing many DOT’s to preservation mode rather than complete replacement, rehabilitation of structures is of paramount interest to keep traffic moving safely through high volume interchanges. This presentation will cover the rehabilitation of pier caps and stems and foundations for the I-75/US 35 Interchange in Dayton, Ohio including lessons learned during construction due to excavation close to RR’s.
Ahmad Hammad, WSP USA, Inc.
Ahmad received his B.S., M.S. and Ph.D. in Civil/Structural Engineering from the University of Illinois at Chicago. Ahmad has over two decades of experience in the design and rehabilitation of highway and transit structures as well as buildings. In addition, he is a registered structural engineer in the state of Illinois and a registered professional engineer in many states. Ahmad has published several refereed papers. Ahmad currently serves as the Structures Mangers for the Illinois Tollway GEC.
MASH TL-5 Testing of Six-Foot Tall Barriers with a Noise Abatement Wall
Recently crash test 6-foot constant slope barrier and F-shape barrier with noise abatement walls attached. The crash test included MASH TL-5 tests 5-10 (1100C Test Vehicle), 5-11 (2270P Test Vehicle) and 5-12 (3+6000V Test Vehicle). The assessment of each of the crash tests by Texas Transportation Institute (TTI) indicates that the Illinois Tollway Constant Slope Barrier and F-shape barrier passed the MASH evaluation criteria.
Randy Thomas, PE, Jacobs
Randy is a principal bridge engineer based in Jacobs’ Milwaukee office, where he leads bridge design teams on highway and rail projects throughout the US and beyond. He received his BSCE from Virginia Tech and MSCE from the University of Wyoming. Randy is the Lead Bridge Engineer for the I-480 Valley View Bridge Project.
I-480 Valley View Bridge Structural Steel Erection Analysis
The I-480 Valley View Bridge Project includes construction of a new high-level median bridge situated between an existing pair of bridges carrying eastbound and westbound I-480 over the Cuyahoga River Valley near Cleveland, Ohio. The presentation will include a project overview and discussion of structural steel erection for the new bridge using overhead gantries, with an emphasis on the structural modeling and analysis of the existing eastbound and westbound bridge structural steel to confirm the feasibility and adequacy of the existing structures to support the steel erection loads.
Terry Sullivan, AIA, LEED AP, JLK Architects
Terry Sullivan is the head of the transit and infrastructure studio as principal at JLK Architects in Chicago, where he is involved in all phases of their transportation projects, including bridge design. He has completed a wide array of City of Chicago projects during his 25-year career, including architectural design involvement on North Avenue, Wells St., and Halsted over the Canal Bridges. Terry is currently involved in the Phase II design of the Division St. bridges over the River and Canal and future Lake St. and Taylor Street bascule bridge projects. His non-transportation work includes LEED certified schools, libraries, Riverwalk projects, and university projects. Terry graduated with a master’s in architecture from Tulane University in 1993. He is a licensed architect in Illinois and LEED accredited for new construction projects.
Enhancing Bridge Design with Architectural Lighting
The rapid advancement in technology impacts several facets of bridge design. A specific impact in the last few years that has reached new levels not imagined 10 years ago is architectural lighting. Bridges have been renown for the structural and architectural significance for ages. This significance has transcended over the last few years to include a specific focus on architectural lighting and its importance. The lighting on bridges enhances the impact and brings forth another dimension not visualized during the daytime.
Tony PetersonTony Peterson, National Steel Bridge Alliance
Tony Peterson is a Bridge Steel Specialist in the Central Market for the National Steel Bridge Alliance. He represents the steel bridge industry on matters of bridge type selection, fabrication and construction. Tony’s role with NSBA is to provide technical assistance, tools and resources for steel bridges to owners, designers, fabricators, and technical committees. Tony is a licensed professional engineer and holds a B.S. in civil engineering from the University of Minnesota, and a Master of Engineering (Structural) from Cornell University.
National Assessment of New Construction Market Pricing for Highway Bridges
The objective of this study was to analyze the initial construction costs of structural steel and concrete bridges that have been built across the United States in order to compare the in-place cost of these bridge types on national, regional, and state bases. The study focused solely on new and total replacements of structural steel and concrete bridges let by State Department of Transportations after 2011 and those that used a Design-Bid-Build delivery methodology.
Francisco Javier Bonachera Martin, PhD, PE, Michael Baker International
Francisco Javier, Frank, Bonachera Martin obtained a BS (2011), a MS (2014), and a PhD (2016) in Civil Engineering from Purdue University. From 2016 to 2019 worked as a Research Engineer at the Bowen Laboratory for Large-Scale Civil Engineering Research at Purdue University. He joined the Indianapolis office of Michael Baker International in 2019. He has participated in the development of several AASHTO provisions, including two Guide Specifications and contributions to the LRFD Bridge Design Specifications and the Manual for Bridge Evaluation.
New AASHTO Guide Specifications for Exploiting Steel Bridge Redundancy
AASHTO has introduced two new Guide Specifications applicable to Fracture-Critical Members. In this presentation an overview of the fracture limit state will be introduced, followed by a summary of the research projects carried out lead by Prof. Robert J. Connor at Purdue University. The focus of the presentation will be on the Guide Specifications for Internal Redundancy of Mechanically Fastened Built-Up Steel Members, and the Guide Specifications for Analysis and Identification of Fracture Critical Members and System Redundant Members, particularly on their structure, applicability, and available resources for implementation.
Brett Sauter, Ciorba Group
Brett Sauter is a Vice President who leads Ciorba’s Structural Group, his experience includes concept studies and final design for bridge projects of various levels of complexity, he has authored technical papers and presented at various conferences.
Complex Bridge Replacement on an Accelerated Schedule
The Edens Spur is a three miles expressway corridor connecting I-294 to I-94 in Northbrook, Illinois as part of the Illinois Tollway System. Ciorba Group led a team of engineering and environmental consultants to complete the design for the reconstruction and widening of the Edens Spur, which included the replacement of eleven mainline bridges and one crossover bridge. Many of these bridges have complex geometry and required design considerations to fit site constraints including high skews, super elevated bridges on curved alignments and deep foundations. The project goal was to modernize this vital part of the Tollway system that was original built in the 50’s.
Mary Lou Kutska, PE, SE, Ciorba Group
Mary Lou Kutska serves as a Structural Project Engineer with Ciorba Group with over seven years of experience for clients nationally. She obtained her B.S. from the University of Illinois, Urbana-Champaign and her M.S. from the University of California, Berkeley. She has worked on final design, staged construction analysis, structural peer review, and served as a technical advisor for concrete slab bridges, segmental bridges, precast concrete bridges, deck replacement, elevated steel track, signature pedestrian bridges, and major river crossings.
Jason Stith,Phd, PE, SE, Michael Baker International
Jason Stith obtained a Ph.D. in Structural Engineer from the University of Texas at Austin after receiving both Masters of Civil Engineering and Business Administration from the University of Kentucky. He is a Bridge Technical Manager working for Michael Baker International in their Louisville, Kentucky office. To date he has made significant contributions to several major bridge projects touching every stage of a bridge’s life cycle (design, construction, inspection, and maintenance).
Simon Kenton Bridge Temporary Suspender Retrofit
The Simon Kenton Bridge is a steel suspension bridge that was constructed in 1931 over the Ohio River. Michael Baker performed a routine, element-level, and fracture critical inspection on the bridge in July 2019. During the inspection critical findings were discovered on the fracture critical lower hanger cable connections near the stiffening truss. The critical find resulted from the severe deterioration and broken wires observed on multiple strands comprising the suspenders. At the worst location 2 of the seven bundles of the wire rope cable had section loss approaching 100%. After the critical find was reported to KYTC, Michael Baker performed a structural analysis to determine the safe load for the structure as well as the redundancy provided by the stiffening truss if a cable were to break. In addition, Michael Baker devised a concept to strengthen the deteriorated cables utilizing European references for this kind of repair. A Contract ready proposal (CRP) was developed to expedite these critical repairs.
David Loughery, Allplan, Inc.
David Loughery is the business development manager for infrastructure with Allplan, a leading provider of BIM solutions for civil engineers. He came to the company after spending several years with Bentley Systems. He worked as a structural engineer on projects in China before beginning to work with AEC software.
BIM Workflows: From Analysis to Fabrication
We will discuss an integrated workflow for project delivery in a BIM environment. This workflow encompasses the full range of engineering activities, including conception, FEM, plans production, detailing, fabrication, and construction documentation, and provides considerable efficiency in design compared to traditional processes.
Sam Mittal, Horner & Shifrin
Sam Mittal serves as a Project Manager in the Chicago office of Horner & Shifrin. Sam has 15 years’ experience delivering projects throughout the country and internationally. During his career he has worked on complex steel, concrete segmental, tied-arch and other bridge types. Sam is a licensed Professional Engineer in five states, Structural Engineer in Illinois and has authored five research papers. Sam earned his bachelor’s from the National Institute of Technology, master’s from the University of Cincinnati, and MBA in finance from the University of Chicago.
Lightweight Modular Accelerated Bridge System for Managed Car Lanes
There is a widening infrastructure investment gap in a large number of countries. To keep up with urbanization trends and population growth, investments in infrastructure need to increase by more than 60% globally. In United States, the Eisenhower era infrastructure is over 55 years old and past the 50-year bridge design life. Aging infrastructure requires high maintenance dollars. On the other hand, severe congestion on important urban interstate corridors is leading to prohibitive economic costs. Top 10 highway interchange bottlenecks in the country cause an average of several million truck hours of delay. An estimated $700 billion of infrastructure investments were required between 2016 and 2020 to fix the huge backlog of highway repair work and to keep pace with the infrastructure consumption. The actual investments have only been a trickle of what is needed.
Soliman Khudeira, PhD, SE, PE (Committee Chair) - Chicago DOT
Salvatore Di Bernardo, SE, PE - Ciorba Group, Inc.
Maen Farhat, PhD – LOCHNER
Phillip D. Frey, SE, PE - T.Y. Lin International
Moussa A. Issa, PhD, SE, PE - HBM Engineering Group
Lawrence L. Kirchner, SE, PE – TranSystems
Sam Mittal, PE, SE - Horner & Shifrin, Inc.
Majid Mobasseri, PhD, SE, PE – CBBEL
Olufemi Oladeinde, SE, PE, SDIENGR Corp.
Tony Shkurti, PhD, SE, PE – HNTB Corporation
Chris Stine, SE, PE - AECOM
Brian Umbright, SE, PE – EXP
Stephanie Crain (Executive Director) – SEAOI