Weigh In Motion Instrumentation Of A Bridge
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Weigh In Motion Instrumentation Of A Bridge Final Report
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Author : J. H. Wyman
language : en
Publisher:
Release Date : 1986
Weigh In Motion Instrumentation Of A Bridge Final Report written by J. H. Wyman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.
Weigh In Motion Instrumentation Of A Bridge
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Author : John H. Wyman
language : en
Publisher:
Release Date : 1981
Weigh In Motion Instrumentation Of A Bridge written by John H. Wyman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Bridges categories.
Weigh In Motion Instrumentation Of A Bridge
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Author :
language : en
Publisher:
Release Date : 1986
Weigh In Motion Instrumentation Of A Bridge written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Bridges categories.
Weigh In Motion Instrumentation
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Author : Fred Moses
language : en
Publisher:
Release Date : 1978
Weigh In Motion Instrumentation written by Fred Moses and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Bridges categories.
Instrumentation For Weighing Trucks In Motion For Highway Bridge Loads
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Author : Fred Moses
language : en
Publisher:
Release Date : 1983
Instrumentation For Weighing Trucks In Motion For Highway Bridge Loads written by Fred Moses and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Bridges categories.
Evaluation Of The Bridge Weigh In Motion System
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Author :
language : en
Publisher:
Release Date : 1985
Evaluation Of The Bridge Weigh In Motion System written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Government publications categories.
This demonstration project allowed Wisconsin Dept. of Transportation to test the overall performance of Bridge weigh in motion equipment as well as develop an entirely new comprehensive and representative truck weight database.
Development Of A Bridge Weigh In Motion System
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Author : Arturo Gonzalez
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2010-05
Development Of A Bridge Weigh In Motion System written by Arturo Gonzalez and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-05 with categories.
Weigh-in-Motion (WIM) data can be used to predict future traffic volumes and weights for the planning of new infrastructure, the management of maintenance activities, the identification/reduction of overloading problems and the evaluation of the performance of pavements and bridges. Most WIM systems are based on sensors placed in or on the pavement that measure the wheel force applied over them during a very short time. The value of this force varies as a result of road roughness and vehicle dynamics leading to limited accuracy for estimating static weights. Additionally, these systems experience durability problems due to traffic and environmental conditions. An alternative approach to WIM that addresses these limitations is the use of an instrumented bridge to weigh vehicles (B-WIM). This approach is the subject of research in this book. Inaccuracies derived from discrepancies between theoretical B-WIM algorithms and bridge measurements are investigated both theoretically and experimentally. The text also describes the development of a B-WIM system in Ireland, including all aspects of installation, calibration, data collection and its processing into useful traffic information.
Weigh In Motion And Response Study Of Four Inservice Bridges Final Report
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Author : J. Hartley Daniels
language : en
Publisher:
Release Date : 1987
Weigh In Motion And Response Study Of Four Inservice Bridges Final Report written by J. Hartley Daniels and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.
The Accuracy Of Bridge Weigh In Motion Systems
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Author : Anthony T. Dempsey
language : en
Publisher:
Release Date : 1997
The Accuracy Of Bridge Weigh In Motion Systems written by Anthony T. Dempsey and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
Simulation Of Bridge Weigh In Motion System Integrated With Bridge Safety
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Author : Zhisong Zhao
language : en
Publisher:
Release Date : 2012
Simulation Of Bridge Weigh In Motion System Integrated With Bridge Safety written by Zhisong Zhao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Bridges categories.
Bridge weigh-in-motion system (B-WIM) testing is a popular technology in bridge applications. The B-WIM system can track extensive information about loading conditions to which bridges are subjected, and engineers can evaluate the responses of bridges and assess their performance relative to the safety index and serviceability. FAD (Free-of-Axle-Detector) or NOR (Nothing-On-Road) B-WIM system works well, but only if the system detects axle locations. In the USA, there are challenges for some beam-and-slab bridges. In the first manuscript, we describe a study with alternative strategies for sensor types and sensor installation locations for beam-and-slab bridges. The sensor layouts are identified and two new sensors are investigated. Most of the commercially available B-WIM systems are based on an algorithm developed by Moses (1979). The performance of this method is acceptable for estimating gross vehicle weight (GVW), but it can be unsatisfactory for estimating single axle loads. In order to improve the accuracy to an acceptable level, two algorithms are proposed. The second and third manuscripts present the measurement of axle weights and GVWs of moving heavy vehicles based on these algorithms. As determined in a case study of a bridge on US-78, both algorithms significantly improved the accuracy of measurements of axle weights in comparison with the commercial B-WIM system. Existing bridges may be functionally obsolete or have deficient structures based on older design codes or features. These bridges are not unsafe for normal vehicle traffic, but they can be vulnerable to specific traffic conditions. We propose, in manuscript 4, use of a simulation model based on B-WIM experimental data derived during extreme events. The results provide an improved understanding of the possible deficiencies of this bridge, and an appropriate retrofit is suggested. Finally, the dynamic amplification factor (DAF) is a significant parameter for design new of bridges and for evaluation of existing bridges. AASHTO guidelines provided very conservative values. So, improved methods for determination of DAF values need to be developed to evaluate the safety of existing bridges. This manuscript presents a simulation method to evaluate the DAF of existing bridges by use of the B-WIM data. The accurate results are obtained based on site-specific data.