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Inspection And Evaluation Of A Bridge Deck Reinforced With Carbon Fiber Reinforced Polymer (Cfrp) Bars, Choo Chiaw, Issam Harik
Inspection And Evaluation Of A Bridge Deck Reinforced With Carbon Fiber Reinforced Polymer (Cfrp) Bars, Choo Chiaw, Issam Harik
Issam E. Harik
Cracking in reinforced concrete decks is inevitable. It leads to the corrosion and eventual deterioration of the deck system. The use of non-corrosive reinforcement is one alternative to steel in reinforced concrete construction. This report deals with the field evaluation and performance of a concrete bridge deck reinforced with carbon fiber reinforced polymer (CFRP) bars. The bridge is identified as the Elkin Station Road Bridge on route CR1210 over the Two Mile Creek in Clark County, KY. The CFRP bars were placed in the top and bottom mats of the bridge deck in both the transverse and longitudinal directions. The …
Fatigue Strength Of End-Coped Crane Runway Girders, Xiaoli Tong, Christopher Tuan, Jianping Yang, Jiaqi Zhang, Qingrui Yue
Fatigue Strength Of End-Coped Crane Runway Girders, Xiaoli Tong, Christopher Tuan, Jianping Yang, Jiaqi Zhang, Qingrui Yue
Christopher Y. Tuan
Fatigue cracks were found on a series of end-coped crane runway girders after 14 years of service in a steel mill building in China. Two typical crane runway girders with different spans were studied in this paper. Finite element analyses were conducted to investigate the stress concentration at the coped ends. Analytical results showed the stress concentration effect was highly localized and the stress concentration factor decreased with increasing cope radius and decreasing total depth. The analytical results agreed well with the field measured data. Fatigue tests were conducted to determine the fatigue strength using eight 1/5-scaled end-coped girder specimens. …
Development Of Closed Loop System Evaluation Equipment And Procedures, Eric J. Nelson, Montasir Abbas, Gary E. Shoup, Darcy M. Bullock
Development Of Closed Loop System Evaluation Equipment And Procedures, Eric J. Nelson, Montasir Abbas, Gary E. Shoup, Darcy M. Bullock
Darcy M Bullock
Modern traffic control systems are complex entities whose performance should be thoroughly quantified prior to deployment. However, many of the advanced features available with this control equipment, such as preemption and real-time control strategies, are typically proprietary in nature, and therefore not incorporated into standard simulation models. Since it is not desirable for the engineer to learn in a field environment, under live traffic conditions, this research presents a rational procedure for evaluating and validating such control strategies in a laboratory setting. This document explores three aspects of traffic signal systems, which include the advanced control settings for single controller …