Ltbp Program S Literature Review On Weigh In Motion Systems
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Ltbp Program S Literature Review On Weigh In Motion Systems
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Author : Imad Al-Qadi
language : en
Publisher:
Release Date : 2016
Ltbp Program S Literature Review On Weigh In Motion Systems written by Imad Al-Qadi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Bridges categories.
Truck size and weight are regulated using Federal and State legislation and policies to ensure safety and preserve bridge and high infrastructure. Weigh-in-motion (WIM) systems can capture the weight and other defining characteristics of the vehicles actually using the Nation's highways, providing important loading-related data that is essential for evaluating the performance of transportation infrastructure. As part of the Federal Highway Administration's (FHWA) Long-Term Bridge Performance (LTBP) Program's Technical Assistance Contract, a literature review of the state of the practice was performed for WIM systems installed in pavements and on bridges. This literature review focused on the development of WIM systems, concepts for measuring axle loads, the applications of WIM sensors for pavements, and recent advancements in bridge WIM system. This review covers the types, installation, calibration, operations, accuracy, efficiency, effectiveness, and durability of WIM systems, in addition to current Federal and State truck load regulations. This review facilitates selection of the appropriate WIM technology systems for consideration and use to address LTBP Program needs. This literature review serves as a reference document for Pooled Fund Project Number TPF-5(283), The Influence of Vehicular Live Loads on Bridge Performance, which targets the impact of vehicle live loads on bridge component durability.
Bridge Traffic Loading
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Author : Eugene OBrien
language : en
Publisher: CRC Press
Release Date : 2021-12-03
Bridge Traffic Loading written by Eugene OBrien and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-12-03 with Technology & Engineering categories.
There is considerable uncertainty about what level of traffic loading bridges should be designed for. Codes specify notional load models, generally to represent extreme levels of normal traffic, but these are often crude and have inconsistent levels of safety for different load effects. Over the past few decades, increasing quantities of reliable truck weight data has become available and it is now possible to calculate appropriate levels of bridge traffic loading, both for specific bridges and for a road network. Bridge Traffic Loading brings together experts from all over the world to deliver not just the state-of-the-art of vertical loading, but also to provide recommendations of best-practice for all the major challenges in the field – short-span, single and multi-lane bridge loading, dynamic allowance and long-span bridges. It reviews issues that continue to be debated, such as which statistical distribution is most appropriate, whether free-flowing or congested traffic governs and dealing with future traffic growth. Specialist consultants and bridge owners should find this invaluable, as will regulators.
A Contribution To Moving Force Identification In Bridge Dynamics
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Author : Andrei Firus
language : en
Publisher: Springer Nature
Release Date : 2023-03-17
A Contribution To Moving Force Identification In Bridge Dynamics written by Andrei Firus and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-03-17 with Technology & Engineering categories.
The knowledge of the real forces acting on a structure are of great importance in the condition assessment process of existing structures. In this sense, this work provides a novel approach for identification of dynamic moving forces acting on a bridge structure. It seeks to find the optimal time dependent force values that minimize the difference between the computed and measured displacement and acceleration time histories for a limited number of sensor locations. The work also presents extensive experimental investigations of the developed method on real structures in operation, which consistently show that it can be successfully used on a wide range of applications: from small structures excited by rather low pedestrian forces up to the "heavy category" of a complete train passing a railway bridge. In this context, a set of particularities and limitations arising in the practical application of the method on real structures are also discussed.
Use Of Weigh In Motion Systems For Data Collection And Enforcement
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Author : Wiley D. Cunagin
language : en
Publisher:
Release Date : 1986
Use Of Weigh In Motion Systems For Data Collection And Enforcement written by Wiley D. Cunagin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Transportation categories.
"This synthesis will be of interest to planners, pavement designers, administrators, and others interested in knowing the actual weights of vehicles using the highways. Information is presented on current uses of weigh-in-motion systems that can obtain the data needed to properly plan and design highways."--Avant-propos.
Evaluation Of Weigh In Motion Systems
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Author : Benjamin H. Cottrell
language : en
Publisher:
Release Date : 1992
Evaluation Of Weigh In Motion Systems written by Benjamin H. Cottrell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Piezoelectric devices categories.
The objective of this research was to evaluate low cost weigh-in-motion systems. The three systems evaluated were (1) a capacitance weigh mat system, (2) a bridge weighing system, and (3) a piezoelectric cable sensor system. All three systems have a two-lane capability. An evaluation was made of (1) the quality of the data, (2) the performance of the equipment, (3) the applications of the equipment and its ease ofuse, and (4) the format of the data and its usefulness. Although objective data were used when possible, the majority of the evaluation is subjective. The quality of the data from each of the three systems is about the same. The piezoelectric cable system provides slightly lower quality data than the other two systems. The equipment of the capacitance weigh mat performed well; that of the bridge system was adequate; and there was concern about the durability of the piezoelectric cable system. Because of the tradeoffs between the capacitance weigh mat system and the bridge system, it is difficult to rank them. The piezoelectric cable system's sensors are permanently installed; therefore, it is not as portable as the other two systems. With regard to the format of the data and its usefulness (which are dependent mostly on the software and not the sensors), the capacitance weigh mat system is flexible and provides individual truck records in two formats, the bridge system provides the most comprehensive tables, and the piezoelectric cable system is limited and depends on other software to generate additional tables. Suggestions are made about how to use the systems and how to improve their performance.
High Speed Weigh In Motion System Calibration Practices
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Author : National Cooperative Highway Research Program (Etats-Unis)
language : en
Publisher:
Release Date : 2008
High Speed Weigh In Motion System Calibration Practices written by National Cooperative Highway Research Program (Etats-Unis) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
On Site Evaluation And Calibration Procedures For Weigh In Motion Systems
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Author :
language : en
Publisher:
Release Date : 1996
On Site Evaluation And Calibration Procedures For Weigh In Motion Systems written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Motor vehicle scales categories.
Standards For Highway Weigh In Motion Wim Systems
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Author : Clarence Edgar Lee
language : en
Publisher:
Release Date : 1991
Standards For Highway Weigh In Motion Wim Systems written by Clarence Edgar Lee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
Comparison Of Weight Data Collected At Weigh In Motion Wim Systems Located On The Same Route
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Author : Curtis Dahlin
language : en
Publisher:
Release Date : 1994
Comparison Of Weight Data Collected At Weigh In Motion Wim Systems Located On The Same Route written by Curtis Dahlin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Motor vehicle scales categories.
Use Of Weigh In Motion Data For Pavement Bridge Weight Enforcement And Freight Logistics Applications
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Author : Darren G. Hazlett
language : en
Publisher:
Release Date : 2020
Use Of Weigh In Motion Data For Pavement Bridge Weight Enforcement And Freight Logistics Applications written by Darren G. Hazlett and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Bridges categories.
Most U.S. state departments of transportation (DOTs) are collecting weigh-in-motion data with a wide variety of sensor types and using them in a variety of applications. Many agencies use WIM data to aid in pavement design, although most are not currently using a Pavement ME (mechanistic-empirical) Design application. WIM for bridge and asset management purposes is used much less often. The TRB National Cooperative Highway Research Program's NCHRP Synthesis 546: Use of Weigh-in-Motion Data for Pavement, Bridge, Weight Enforcement, and Freight Logistics Applications documents how DOTs incorporate weigh-in-motion data into such applications as bridge and pavement design and management, load ratings, weight enforcement support, and freight planning and logistics.