Research
Full Session without Abstracts
Necati Catbas, PhD, P.E., F.SEI, F.ASCE
Professor and Director, Civil, Environmental and Construction Engineering Department
University of Central Florida
Kevin Mackie, Ph.D., P.E.
Associate Professor
University of Central Florida
Jennifer Bridge, Ph.D.
Associate Professor
University of Florida
Sungmoon Jung, Ph.D.
Associate Professor
Florida State University
Nakin Suksawang, Ph.D., P.E.
Associate Professor
Florida Institute of Technology
Chuanzhi Dong, PhD Candidate
Research Assistant
University of Central Florida
This session presents an overview from four different Florida universities for a review of their recent research. UCF researchers will present their recent innovations in bridge design, detailing, materials, and construction in accelerated bridge construction (ABC). Their presentation will focus on recent large-scale testing on substructure (column-to-footing or column-to-bent cap) connections that utilize a shifted plastic hinge design. Numerous column tests were performed and results show their connection types successfully relocate the hinge above the connection region, these details can be designed to achieve the same strength as the CIP controls, and exhibit similar or better ductility and energy dissipation capacities. UF will present their multidisciplinary work on bridge related research on UAV inspection, monitoring the Sunshine Skyway Bridge, and measuring wave loading on coastal bridges. In FSU presentation, the kinematics of occupants and injury risk in two rollover test procedures will be discussed. Instrumented Hybrid III dummies were placed in the same position inside the two identical cutaway buses to measure the corresponded injuries. Multiple tests such as a dolly rollover test, where the bus was placed on the cart and accelerated in the lateral direction until it reaches a desirable speed will be presented. FIU will present bonded concrete overlay (BCO) as one repair method for concrete pavement and bridge. BCO is an economical and quick rehabilitation technique that is used for repairing and retrofitting distressed concrete pavements with less disruption to the traffic. In this presentation, the tensile bond strength between fiber reinforced BCO and plain concrete using splitting tensile bond test will be discussed. Results indicated that the tensile bond strength between fiber reinforced BCO and existing concrete could significantly increase with the use of PVA fiber, while steel and polyolefin fibers reduce the tensile bond strength. Finally, recent research on the use of computer vision technologies to efficiently monitor structural systems for dynamic response, structural deflections and assessment will be presented along with real life applications on bridges. The session presents representative research work from different Florida universities on areas that have interest from a wide range of audience. The session presenters are:
1. Kevin Mackie, Professor and Titchenda Chan, Haider Al-Jelawy, Graduate Students (University of Central Florida) “Precast bridge column connections using shifted plastic hinging for accelerated bridge construction
2. Jennifer A. Bridge, Associate Professor/Presenter (University of Florida) “Monitoring Florida Bridges from the Air and the Water” Authors: Jennifer A. Bridge, Justin Davis, Andrew Tomiczek, Carlos Ayoroa Soler, Stephen Gonzalez, Travis Whitley, Peter Ifju
3. Sungmoon Jun , Associate Professor, MohammadReza Seyedi, Grzegorz Dolzyk, Jerry Wekezer, (FAMU-FSU), “Toward Injury-Based Rollover Crashworthiness Assessment of Cutaway Bus”
4. Nakin Suksawang, Associate Professor, Ahmed Alsabbagh, Salam Wtaife, Alaa Shaban, and Emad Alshammari (Graduate Students) (Florida Institute of Technology) “Effect of Fiber on Tensile Bond Strength of Bonded Concrete Overlays”
5. George Dong (Graduate Student) and Necati Catbas, (Professor) (University of Central Florida) (University of Central Florida) “Computer vision and deep learning applications for structural engineering”