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Articles 1 - 10 of 10
Full-Text Articles in Engineering
Assessment Of Bridge Pier Response To Fire, Vehicle Impact, And Air Blast, Chen Fang, Qusai Alomari, Daniel G. Linzell
Assessment Of Bridge Pier Response To Fire, Vehicle Impact, And Air Blast, Chen Fang, Qusai Alomari, Daniel G. Linzell
Department of Civil and Environmental Engineering: Dissertations, Theses, and Student Research
Highway bridges exposed to intentional or unintentional fire followed by combined vehicle impact and air blast are at risk of significant damage and, possibly, collapse. Limited studies examining the complex effects of these extreme demands on bridge support elements and parametrizing their response and damage are found in the open literature. Research that is presented is part of an ongoing numerical investigation examining round, multi-column, reinforced concrete (RC), bridge pier behavior subject to multi-hazard scenarios involving fire, vehicle impact, and air blast. Detailed nonlinear finite element analysis models of single columns and multi-column piers supported by a pile foundation system …
Network Modeling Of Hurricane Evacuation Using Data-Driven Demand And Incident-Induced Capacity Loss Models, Yuan Zhu, Kaan Ozbay, Kun Xie, Hong Yang, Ender Foruk Morgul
Network Modeling Of Hurricane Evacuation Using Data-Driven Demand And Incident-Induced Capacity Loss Models, Yuan Zhu, Kaan Ozbay, Kun Xie, Hong Yang, Ender Foruk Morgul
Civil & Environmental Engineering Faculty Publications
The development of a hurricane evacuation simulation model is a crucial task in emergency management and planning. Two major issues affect the reliability of an evacuation model: one is estimations of evacuation traffic based on socioeconomic characteristics, and the other is capacity change and its influence on evacuation outcome due to traffic incidents in the context of hurricanes. Both issues can impact the effectiveness of emergency planning in terms of evacuation order issuance, and evacuation route planning. The proposed research aims to investigate the demand and supply modeling in the context of hurricane evacuations. This methodology created three scenarios for …
Lessons Learned From Six Different Structural Health Monitoring Systems On Highway Bridges, Abheetha Peiris, Charlie Sun, Issam E. Harik
Lessons Learned From Six Different Structural Health Monitoring Systems On Highway Bridges, Abheetha Peiris, Charlie Sun, Issam E. Harik
Kentucky Transportation Center Faculty and Researcher Publications
Structural health monitoring has been utilized in numerous ways to investigate the performance and integrity of highway bridges. This paper highlights the use of six structural health monitoring systems, which were deployed to monitor distinct behaviors on six bridges in Kentucky. The structural health monitoring systems are as follows: (1) Over-height truck impact detection and monitoring on the I-64 over US 60 bridge, (2) Barge impact detection and monitoring on northbound US 41 over the Ohio River, (3) effectiveness of carbon fiber-reinforced polymer retrofit evaluation based on prestressed concrete I-girder crack movement on the I-65 elevated expressway in Louisville, (4) …
Implementation Of Remote Sensing Technology On The I-64 Bridge Over Us60, Issam Harik, Ching Choo, Abheetha Peiris, Dan Eaton
Implementation Of Remote Sensing Technology On The I-64 Bridge Over Us60, Issam Harik, Ching Choo, Abheetha Peiris, Dan Eaton
Issam E. Harik
Remote sensing devices have been implemented on the I-64 Bridges over US60 in Franklin County, KY. One of the girders in the westbound bridge has been previously repaired due to unexpected fatigue cracking. The exterior girder in the eastbound bridge has shown signs of impacts due to the traversing trucks on US60. Sensing and recording devices such as strain and temperature gauges, infrared sensors, ultrasonic height detectors, and an accelerometer have been installed. Specifically, eleven strain gauges are used on the repaired girder, impacted girders, and girders adjacent to them. Two sets of infrared sensors, ultrasonic detectors, and video cameras …
Multi-Barge Flotilla Impact Forces On Bridges, Peng Yuan, Issam Harik, Michael Davidson
Multi-Barge Flotilla Impact Forces On Bridges, Peng Yuan, Issam Harik, Michael Davidson
Issam E. Harik
The current AASHTO equations for barge impact loads are based on scale models of barges, and may not accurately predict impact loads on bridge piers. The results of this study produce more realistic flotilla impact design loads, potentially leading to a reduction in construction costs of bridges over navigable waterways. The objectives of this study are: (1) To conduct theoretical finite element analysis on various types of flotillas impacting bridge piers. The flotillas and the respective barges will be of the type commonly traversing Kentucky’s waterways; and (2) To generate design equations for barge/flotilla impact loads. The study concludes the …
Evaluation Of The Environmental Impacts Of Bridge Deck Runoff, Shannon L. Bartelt-Hunt, Lauren Swadener, Ekizabeth G. Jones
Evaluation Of The Environmental Impacts Of Bridge Deck Runoff, Shannon L. Bartelt-Hunt, Lauren Swadener, Ekizabeth G. Jones
Nebraska Department of Transportation: Research Reports
Bridges are located in very close proximity to receiving waters, and regulatory agencies often require specific stormwater control measures for bridge deck runoff. While there is some information available on roadway runoff, few studies have focused on bridge deck runoff. Currently, there is no information available regarding the impacts of bridge deck runoff on receiving waters in Nebraska. Due to the cost, maintenance, and design issues associated with implementing structural controls for bridge deck runoff, it is important to develop a better understanding of the relationship between bridge deck runoff and potential impacts to receiving streams. The objectives of this …
Impact Of 0.7 Inch Diameter Strands On Nu I-Grinders, Maher K. Tadros, George Morcous
Impact Of 0.7 Inch Diameter Strands On Nu I-Grinders, Maher K. Tadros, George Morcous
Nebraska Department of Transportation: Research Reports
No abstract provided.
Implementation Of Remote Sensing Technology On The I-64 Bridge Over Us60, Issam E. Harik, Ching Chiaw Choo, Abheetha Peiris, Dan Eaton
Implementation Of Remote Sensing Technology On The I-64 Bridge Over Us60, Issam E. Harik, Ching Chiaw Choo, Abheetha Peiris, Dan Eaton
Kentucky Transportation Center Research Report
Remote sensing devices have been implemented on the I-64 Bridges over US60 in Franklin County, KY. One of the girders in the westbound bridge has been previously repaired due to unexpected fatigue cracking. The exterior girder in the eastbound bridge has shown signs of impacts due to the traversing trucks on US60. Sensing and recording devices such as strain and temperature gauges, infrared sensors, ultrasonic height detectors, and an accelerometer have been installed. Specifically, eleven strain gauges are used on the repaired girder, impacted girders, and girders adjacent to them. Two sets of infrared sensors, ultrasonic detectors, and video cameras …
Multi-Barge Flotilla Impact Forces On Bridges, Peng Yuan, Issam E. Harik, Michael T. Davidson
Multi-Barge Flotilla Impact Forces On Bridges, Peng Yuan, Issam E. Harik, Michael T. Davidson
Kentucky Transportation Center Research Report
The current AASHTO equations for barge impact loads are based on scale models of barges, and may not accurately predict impact loads on bridge piers. The results of this study produce more realistic flotilla impact design loads, potentially leading to a reduction in construction costs of bridges over navigable waterways. The objectives of this study are: (1) To conduct theoretical finite element analysis on various types of flotillas impacting bridge piers. The flotillas and the respective barges will be of the type commonly traversing Kentucky’s waterways; and (2) To generate design equations for barge/flotilla impact loads. The study concludes the …
The Impact Of A New Bypass Route On The Local Economy And Quality Of Life, Eric C. Thompson, Joseph Miller, Jonathon Roenker
The Impact Of A New Bypass Route On The Local Economy And Quality Of Life, Eric C. Thompson, Joseph Miller, Jonathon Roenker
Kentucky Transportation Center Research Report
Highway improvements such as bypass construction typically are motivated by a desire to improve the flow and safety of travel. But, given the importance of travel, transportation improvement projects often can affect the local economy and quality of life. This study assesses these potential impacts. The study was conducted by the University of Kentucky Center for Business and Economic Research, as part of a subcontract with the Kentucky Transportation Center. The study is one component of a larger Kentucky Transportation Center study entitled Planning Decisions Related to Bypass Construction, Life-Cycle Costs of Access Control, and Safety Impacts of Rural Road …