Developing ABC Success Index to Support Contractors During Pre-Project Planning [ABC-UTC-2016-C4-FIU01]: This study would foster the development of a streamlined procedure for effective adoption of ABC, which support (1) educating contractors to adopt ABC projects successfully; and (2) encouraging ABC stakeholders to understand and realize the success indicators of ABC projects particularly during pre-project planning phase.
Use of All Lightweight Concrete in Conjunction with UHPC Connection for Prefabricated Barrier System [ABC-UTC-2016-C4-FIU02]: The use of all lightweight concrete in barriers and in some cases bridge overhangs provides a reduction in the total weight of the barriers by almost 33% allowing the transportation of more barrier units on one truck and easy handling. Furthermore, in seismic regions, lighter barrier contributes to a lesser total mass of bridge superstructures which is beneficial in many cases. In this project, two barriers, made of all lightweight concrete, will be tested under static load test setup and the results will be compared to the specimens which are being tested under project number.
Risk and Resilience of Bridges: Toward Development of Hazard-Based Assessment Framework, Research Needs, and Benefits of Accelerated Construction[ABC-UTC-2016-C4-FIU-OU-UNR-Collab1]: This project seeks to document and synthesize the current state of practice related to assessment of risk and resilience of bridges and other structures and conducting target surveys to identify the current state of practice with transportation agencies and cities. The collected information will be utilized to develop holistic resilience and risk assessment framework for existing and new bridges, including ABC bridges, accelerated upgrade (enhanced robustness), and accelerated repair (enhanced rapidity), under multi-hazards to emphasis on accelerated construction benefits.
Alternative Technical Concepts for Contract Delivery Methods in Accelerated Bridge Construction [ABC-UTC-2016-C3-FIU02]: The primary objective for this research project is to determine the factors which impact the integration of ATC in ABC projects through the analytic hierarchy process (AHP). A hierarchy model will be developed and used to create a guideline for effective adoption of ATC in ABC projects, which will accelerate the design, construction processes, and procurement of infrastructure assets for either rehabilitation or new projects related to ABC.
Work Zone Safety Analysis, Investigating Benefits from Accelerated Bridge Construction (ABC) on Roadway Safety [ABC-UTC-2016-C3-FIU03]: This research project fills the gap by, at first glance, seeking to identify the contributing factors that affect the severity of work zone crashes associated with worker presence and crash frequency at construction work zone locations. Then, provides quantitative evidence of how much benefits can be obtained through the ABC implementation as compared with conventional on-site bridge construction from roadway safety points of view.
Prefabricated Barrier System Utilizing UHPC Connections [ABC-UTC-2016-C3-FIU05]: A new prefabricated barrier system utilizing UHPC connection to deck overhangs is proposed under this project. Under this project, component and large scale testing will be conducted along with extensive finite element models to ensure that the proposed prefabricated barrier system with UHPC connections meets TL-4 requirements.
Robotic Bridge Construction: Experimental Phase I [ABC-UTC-2016-C3-FIU06]: The proposed research is the second phase of the Cycle 2 project “Robotics and Automation in ABC Projects: Exploratory Phase- ABC-UTC-2016-C2-FIU05”. In the exploratory phase, the PIs are identifying suitable materials, ultra-high performance concrete”, suitable robotic systems “mobile robot and 3d-printing system”, and suitable prefabricated bridge elements “UHPC shells for bridge columns and beams”.
Rapid Repair and Retrofit of Timber Piles Using UHPC [ABC-UTC-2016-C3-FIU07]: Ultra-high performance concrete (UHPC) offers great solutions for repairing and retrofitting bridge elements. In this research UHPC is utilized to restore and upgrade the capacity of deteriorated timber piles. This research project investigates both bond strength between timber as substrate material and UHPC as repair material in addition to studying the load carrying mechanism of repaired/retrofitted timber piles using UHPC.
Automated MFL System for Corrosion Detection [ABC-UTC-2016-C3-FIU08]: The proposed project is aimed at using the methodology that is developed under other projects and supported by other agencies and automates the process for accelerated field application. The scope of the work and budget is kept at minimum budget since the majority of the related work and research have been completed under other projects.
UHPC connection for SDCL steel bridge system[ABC-UTC-2016-C3-FIU09]: In this research UHPC is utilized in for an SDCL steel bridge system instead of cast-in-place normal strength concrete diaphragm. The research project proposes a connection detail and numerically evaluates the structural behavior of the connection.
2nd-Cycle Projects (2016-grant)
Development of Non-Proprietary UHPC Mix [ABC-UTC-2016-C2-FIU01]: The proposed study by FIU is part of a larger overall project including all five of the ABC-UTC partner universities. The main objective of this proposed study is to develop a non-proprietary UHPC mix design, labeled “ABC-UTC Non-Proprietary UHPC Mix,” made with local materials that can achieve the necessary mechanical properties and durability for use in bridge components, repair, and connections.
Performance Of Existing ABC Projects: Inspection Case Studies[ABC-UTC-2016-C2-FIU02]: The primary objective of this project is to collect much needed information on performance of two in-service ABC bridges. It is envisioned that inspection will include routine visual inspection, special inspection of certain details, and application of NDT methods wherever needed. The results will be compiled in a format for effective recording and will be reported accordingly.
Available ABC Bridge Systems for Short Span Bridges – Course Module [ABC-UTC-2016-C2-FIU03]: The primary objective of development of this course is to provide a general knowledge about the application of ABC for short-span bridges covering various aspects of decision-making, construction methods, available elements and systems, performance and inspection, design, detailing and connections.
Robotics and Automation in ABC Projects: Exploratory Phase[ABC-UTC-2016-C2-FIU05]: The use of automation and robotics in ABC projects has numerous advantages including increased quality of prefabricated elements, and reducing the accident rate at construction sites. In order to facilitate the implementation of automation and robotics, a comprehensive literature review and feasibility studies will be carried out to identify suitable mobile robots, construction material, prefabricated elements, and in-situ connections.
Laminated Wood Deck System for Folded Plate Girder[ABC-UTC-2016-C2-FIU06]: The proposed research suggests experimental testing and finite element modelling for a modular unit of FPG with laminated wood deck. In the suggested experimental work, large scale specimen will be tested under fatigue loading for service life design and under ultimate load for AASHTO strength design.
Complex Network Perspectives Towards Accelerated Bridge Construction (ABC) [ABC-UTC-2016-C2-FIU08]: The objective of this study is to present a method for assessing the vulnerability of a bridge network system and a strategy for improving its resiliency. With growing attention to risk-based inspection and maintenance of infrastructure, accurate knowledge of the vulnerabilities and importance, as well as consideration of interrelation among bridges in a network becomes crucial. The bridge network system in the state of Florida, USA will be used as a case study in this project.
Innovative Foundation Alternative for High Speed Rail Application[ABC-UTC-2016-C1-FIU04]: The objectives of this project include; development and validation of innovative foundation systems for HSR applications, detailed finite element modeling; and NL FE analysis to investigate the seismic response of HSR bridges with innovative foundations. This is a joint project between FIU and UNR, with FIU focusing on the component modeling and UNR on incorporation into the bridge system.
Development Of Guide For Selection Of Substructure For ABC Projects[ABC-UTC-2016-C1-FIU01]: The primary objective of this project is to provide guidelines for decision making by the designers and bridge owners for the selection of substructure and foundation for new bridges and replacement of existing bridges using ABC methods. This is a joint project between FIU and OU, with OU focusing on foundation and FIU on remaining.
NDT Methods Applicable to Health Monitoring of ABC Closure Joints[ABC-UTC-2013-C3-FIU03]: This project involves search, identification, and adaptation or development of practical and economical methods for field inspection and damage detection of ABC closure joints, immediately after completion and periodically thereafter during its service life.
Compilation of ABC Solutions[ABC-UTC-2013-C1-FIU01]: The objective of the project is to compile information on existing accelerated bridge technologies and present the information in a manner useful to designers.