Risk Based Bridge Inspection Practices

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Risk-Based Bridge Inspection Practices

Author : Rebecca S. Reising
Publisher :
ISBN 13 : 9781622603114
Total Pages : 81 pages
Book Rating : 4.6/5 (31 download)

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Book Synopsis Risk-Based Bridge Inspection Practices by : Rebecca S. Reising

Download or read book Risk-Based Bridge Inspection Practices written by Rebecca S. Reising and published by . This book was released on 2014-12-15 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Improving bridge safety, reliability, and the allocation of bridge inspection resources are the goals of the proposed risk-based bridge inspection practices. Currently, most bridges in the United States are inspected at a fixed calendar interval of 24 months, without regard to the condition of the bridge. Newer bridges with little or no damage are inspected with the same frequency as older, more deteriorated bridges thus creating inefficiency in the allocation of inspection resources.The proposed methodology incorporates reliability theory and expert elicitation from the Indiana Department of Transportation's Risk Assessment Panel, developed during this research, to rationally determine bridge inspection needs. Assessments are made based on the likelihood and consequence of failure for specific bridge components. The likelihood of failure is determined through attributes based on design, loading, and condition characteristics while the consequence of failure is based on expected structural capacity, public safety, and serviceability. By combining the expressions of likelihood and consequence for each component, an optimum inspection interval for the entire bridge can be determined through the use of risk matrices.The methodology was evaluated through case studies involving Indiana bridges. Over 30 years of historical inspection reports were utilized in the back-casting process to evaluate deterioration levels and assess the adequacy of the risk criteria. Results of the case studies conducted during the research indicated that the risk analysis procedures provided suitable inspection intervals ranging from 24 to 72 months for Indiana bridges.

Proposed Guideline for Reliability-based Bridge Inspection Practices

Author : Glenn A. Washer
Publisher :
ISBN 13 : 9780309307918
Total Pages : 212 pages
Book Rating : 4.3/5 (79 download)

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Book Synopsis Proposed Guideline for Reliability-based Bridge Inspection Practices by : Glenn A. Washer

Download or read book Proposed Guideline for Reliability-based Bridge Inspection Practices written by Glenn A. Washer and published by . This book was released on 2014 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Report 782: Proposed Guideline for Reliability-Based Bridge Inspection Practices presents a proposed guideline for reliability-based bridge inspection practices and provides two case studies of the application of the proposed guideline. The guideline describes a methodology to develop a risk-based approach for determining the bridge inspection interval according to the requirements in Moving Ahead for Progress in the 21st Century Act (MAP-21)."--Publisher description.

Bridge Inspection Practices

Author : George Hearn
Publisher : Transportation Research Board
ISBN 13 : 0309097959
Total Pages : 209 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Bridge Inspection Practices by : George Hearn

Download or read book Bridge Inspection Practices written by George Hearn and published by Transportation Research Board. This book was released on 2007 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis reports bridge inspection practices in the United States and selected foreign countries. The synthesis is a collection of information on formal inspection practices of departments of transportation (DOTs). These are primarily visual inspections and they provide data to bridge registries and databases. For U.S. inspection practices, this synthesis reports on inspection personnel, inspection types, and inspection quality control and quality assurance. Staff titles and functions in inspection programs are reported, together with qualifications and training of personnel, formation of inspection teams, and assignment of teams to bridges. Inspection types are described in terms of their scope, methods, and intervals. Quality control and quality assurance programs are reviewed in terms of the procedures employed, staff involved, quality measurements obtained, and the use of quality findings in DOT inspection programs. Foreign practices are presented in the same organization of inspection personnel, types, and quality programs. Comparisons of U.S. and foreign inspection practices are included. Information was obtained from a questionnaire sent to U.S. state transportation departments, similar questionnaires modified individually for transportation agencies in selected foreign countries, and formal documents used by transportation departments and agencies. These documents primarily included bridge inspection manuals, inspection training manuals, and technical memoranda, but also included blank forms for inspections, DOTs job descriptions for inspectors, and descriptions of inspection training courses. Overall, this synthesis includes information from forty U.S. state transportation departments and from roads agencies in eight foreign nations (Denmark, France, Finland, Germany, Norway, South Africa, Sweden, and the United Kingdom). The synthesis also includes, in an appendix, information from a few provincial and municipal transport agencies in Canada.

Proposed Guideline for Reliability-Based Bridge Inspection Practices

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (16 download)

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Book Synopsis Proposed Guideline for Reliability-Based Bridge Inspection Practices by :

Download or read book Proposed Guideline for Reliability-Based Bridge Inspection Practices written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

National Bridge Inspection Program

Author : Joseph W. Come
Publisher : DIANE Publishing
ISBN 13 : 1437917135
Total Pages : 26 pages
Book Rating : 4.4/5 (379 download)

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Book Synopsis National Bridge Inspection Program by : Joseph W. Come

Download or read book National Bridge Inspection Program written by Joseph W. Come and published by DIANE Publishing. This book was released on 2009-11 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides the results of an audit of the Fed. Hwy. Admin. (FHWA) to improve its oversight of states¿ bridge inspections, load ratings, and max. weight postings. FHWA should encourage states to use more detailed data to manage their bridge programs. Shortly after the I-35W bridge collapse in Minneapolis, MN on Aug. 1, 2007, killing 13 people, the Sec. of Transportation asked whether FHWA¿s Nat. Bridge Inspection Program delivered the highest level of bridge safety. Objectives for this audit were to evaluate FHWA¿s: (1) implementation of data-driven, risk-based oversight to target bridge safety risks most in need of attention, particularly those related to load ratings and postings; and (2) promotion of state use of bridge management systems. Table.

Bridge Inspection Practices

Author :
Publisher : Transportation Research Board
ISBN 13 :
Total Pages : 139 pages
Book Rating : 4./5 ( download)

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Book Synopsis Bridge Inspection Practices by :

Download or read book Bridge Inspection Practices written by and published by Transportation Research Board. This book was released on with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Risk-Based Strategies for Bridge Maintenance

Author : Khaled M Mahmoud
Publisher : CRC Press
ISBN 13 : 100382899X
Total Pages : 433 pages
Book Rating : 4.0/5 (38 download)

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Book Synopsis Risk-Based Strategies for Bridge Maintenance by : Khaled M Mahmoud

Download or read book Risk-Based Strategies for Bridge Maintenance written by Khaled M Mahmoud and published by CRC Press. This book was released on 2023-08-16 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effective maintenance of bridge structures comprises a broad spectrum of plans for repairs and services implemented to enable bridges to perform their intended function. These include in-depth inspection, fatigue analysis, design of mitigation measures and construction to avert component deterioration. Several incidents of in-service and under construction bridge failures have recently taken place. These dramatic failures emphasize the importance of risk-based inspections and analysis of real-life data to evaluate reliability of bridges. To effectuate benefits of reliability analysis in bridge maintenance, work on theoretical reliability must be equipped with practical analytical tools. Such an approach must underscore risk elements and identify processes to manage risk and avoid unexpected outcomes of failures and service disruption of bridges. The devastating earthquakes of February 6, 2023, in the southern region of Turkey near the northern border of Syria, which claimed tens of thousands of lives, caused enormous structural damage and staggering economic losses. These seismic events brought to focus on the vitality of instilling infrastructure routes that must accommodate emergency management plans to integrate the influx of medical and rescue response teams. The safe operation of bridges along these routes is indispensable for mobilization and deployment of rescue teams, medical personnel, humanitarian assistance, and the supply of food and water. The reliability of access routes and bridges is defined by their ability to adequately function as planned to effectuate emergency management plans, in the event of a similar seismic event, anywhere in the world. Risk-Based Strategies for Bridge Maintenance contains selected papers presented at the 11th New York City Bridge Conference (New York City, USA, 21-22 August 2023), and discusses issues of reliability, risk assessment, management, maintenance, inspection, monitoring, design, preservation, and rehabilitation of bridges. The book is aimed at bridge engineers.

Consistency of the New York State Bridge Inspection Program

Author : Anil Kumar Agrawal
Publisher :
ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.:/5 (88 download)

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Book Synopsis Consistency of the New York State Bridge Inspection Program by : Anil Kumar Agrawal

Download or read book Consistency of the New York State Bridge Inspection Program written by Anil Kumar Agrawal and published by . This book was released on 2013 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: The New York State Department of Transportation (NYSDOT) maintains an inventory of over 17,000 highway bridges across the state. As per New York State's Uniform Code of Bridge Inspections, all bridges in New York State are inspected biennially, or more often as necessary. Bridge inspectors are required to assign a condition rating for up to 47 structural elements of each bridge, including 25 components of each span of a bridge, in addition to the general components common to all bridges based on visual inspection of these elements. The bridge condition rating scale ranges from 7 to 1, 7 being new and 1 being in failed condition. In addition to this, ratings 8 and 9 are assigned to cases "not applicable" and "condition and/or existence unknown". The objectives of this research have been to (1) conduct a detailed evaluation of the consistency of inspection ratings, and (2) provide recommendations for improvements to bridge inspection procedures and training to improve consistency, whenever possible. A broader outcome of the research has been the development of knowledgebase [sic] on factors affecting consistency of bridge ratings. These research objectives have been achieved through a detailed and comprehensive literature review on inspection practices and the NYSDOT bridge inspection program and, development and evaluation of consistency of the bridge inspection ratings through the inspection of 4 selected bridges by 21 inspection teams. Numbers of bridges and inspection teams have been selected to generate statistically sufficient data for the evaluation of consistency of inspection of different bridge elements. A detailed and quantitative evaluation of consistency of inspection ratings of different bridge elements has been carried out through the analysis of inspection data. Results show that the overall consistency of ratings of different elements is more than 90%.

Inspection and Management of Bridges with Fracture-critical Details

Author : Robert J. Conner
Publisher : Transportation Research Board
ISBN 13 : 0309097614
Total Pages : 84 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Inspection and Management of Bridges with Fracture-critical Details by : Robert J. Conner

Download or read book Inspection and Management of Bridges with Fracture-critical Details written by Robert J. Conner and published by Transportation Research Board. This book was released on 2005 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 354: Inspection and Management of Bridges with Fracture-Critical Details explores the inspection and maintenance of bridges with fracture-critical members (FCMs), as defined in the American Association of State Highway and Transportation Officials' Load and Resistance Factor Design (LRFD) Bridge Design Specifications. The report identifies gaps in literature related to the subject; determines practices and problems with how bridge owners define, identify, document, inspect, and manage bridges with fracture-critical details; and identifies specific research needs. Among the areas examined in the report are inspection frequencies and procedures; methods for calculating remaining fatigue life; qualification, availability, and training of inspectors; cost of inspection programs; instances where inspection programs prevented failures; retrofit techniques; fabrication methods and inspections; and experience with fracture-critical members fractures and problems details.

Element Level Bridge Inspection

Author : Leslie Campbell
Publisher :
ISBN 13 : 9781622604111
Total Pages : pages
Book Rating : 4.6/5 (41 download)

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Book Synopsis Element Level Bridge Inspection by : Leslie Campbell

Download or read book Element Level Bridge Inspection written by Leslie Campbell and published by . This book was released on 2016-12-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2012, Congress passed the Moving Ahead for Progress in the 21st Century Act (MAP-21) and committed to the development of a data-driven, risk based approach to asset management in the United States. This law requires the collection and submission of element level bridge inspection data for all National Highway System bridges, in addition to the National Bridge Inspection condition rating data. Ultimately, the data collected during element level bridge inspections should satisfy the requirements of the Federal Highway Administration and MAP-21 and be utilized by INDOT to evaluate bridge condition, predict deterioration, and guide decision making. The objective of this project is to develop recommendations for element level bridge inspection techniques, data collection, and inspector training based on a survey of INDOT peer agencies and a literature review of existing research and bridge inspection guidance. In order to collect consistent and reliable data, a rigorous inspector training program and detailed quality control procedures are necessary. INDOT must provide inspectors with the tools to be successful, including clearly defined expectations and instructions, comprehensive training and technical support, and effective inspection equipment. Similarly, robust quality control measures and periodic performance testing should be implemented to improve inspection quality and assess the agency's performance.

Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges

Author : Nigel Powers
Publisher : CRC Press
ISBN 13 : 1351745964
Total Pages : 5447 pages
Book Rating : 4.3/5 (517 download)

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Book Synopsis Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges by : Nigel Powers

Download or read book Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges written by Nigel Powers and published by CRC Press. This book was released on 2018-07-04 with total page 5447 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges contains lectures and papers presented at the Ninth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2018), held in Melbourne, Australia, 9-13 July 2018. This volume consists of a book of extended abstracts and a USB card containing the full papers of 393 contributions presented at IABMAS 2018, including the T.Y. Lin Lecture, 10 Keynote Lectures, and 382 technical papers from 40 countries. The contributions presented at IABMAS 2018 deal with the state of the art as well as emerging concepts and innovative applications related to the main aspects of bridge maintenance, safety, risk, management and life-cycle performance. Major topics include: new design methods, bridge codes, heavy vehicle and load models, bridge management systems, prediction of future traffic models, service life prediction, residual service life, sustainability and life-cycle assessments, maintenance strategies, bridge diagnostics, health monitoring, non-destructive testing, field testing, safety and serviceability, assessment and evaluation, damage identification, deterioration modelling, repair and retrofitting strategies, bridge reliability, fatigue and corrosion, extreme loads, advanced experimental simulations, and advanced computer simulations, among others. This volume provides both an up-to-date overview of the field of bridge engineering and significant contributions to the process of more rational decision-making on bridge maintenance, safety, risk, management and life-cycle performance of bridges for the purpose of enhancing the welfare of society. The Editors hope that these Proceedings will serve as a valuable reference to all concerned with bridge structure and infrastructure systems, including students, researchers and engineers from all areas of bridge engineering.

Inspection, Evaluation and Maintenance of Suspension Bridges

Author : Sreenivas Alampalli
Publisher : CRC Press
ISBN 13 : 9781466596863
Total Pages : 376 pages
Book Rating : 4.5/5 (968 download)

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Book Synopsis Inspection, Evaluation and Maintenance of Suspension Bridges by : Sreenivas Alampalli

Download or read book Inspection, Evaluation and Maintenance of Suspension Bridges written by Sreenivas Alampalli and published by CRC Press. This book was released on 2015-08-20 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guidance on Protecting and Extending the Life of Suspension Bridges Suspension bridges are graceful, aesthetic, and iconic structures. Due to their attractiveness and visibility, they are well-known symbols of major cities and countries in the world. They are also an essential form of transportation infrastructure built across large bodies of water. Despite being expensive to build, they are economical structures for the lengths they span. They have evolved significantly from the basic concept dating back to 200 BC China through the first design for a bridge resembling a modern suspension bridge, attributed to Fausto Veranzio in 1595, to present-day span lengths close to two kilometers. Many of these bridges carry significant traffic and their upkeep is very important to maintain transportation mobility. They offer grace and functionality, yet are extremely complex to construct and maintain. Bridge owners spend a considerable amount of time and resources to ensure uninterrupted service, safety, and security for users. Inspection, evaluation, maintenance, and rehabilitation have evolved significantly. Modern materials and innovative design and construction practices have been integrated into these bridges to maintain durability and extended service life. Captures the Experience of More Than 20 Suspension Bridge Operators Inspection, Evaluation and Maintenance of Suspension Bridges is written by the bridge owners and practitioners who strive to cost-effectively manage these bridges. It is invaluable to everyone interested not only in suspension bridges but in the upkeep of any bridges—students, designers, maintenance personnel, contractors, and owners. Describes the evolution and trends in the operation and maintenance of cable supported bridges Contains the latest methods for evaluating cable supported bridge capacities and durability Presents suspension bridge security risk management aspects and Bayesian network-based methodology for risk evaluation This volume discusses state-of-the-art practice in suspension bridge inspection, evaluation, and rehabilitation methods used worldwide, described by the personnel directly involved with managing them. Its companion volume presents detailed case studies of specific bridges to give a comprehensive picture of how suspension bridges are maintained around the world.

Reliability-based Methodology for Bridge Inspection Planning

Author : Christopher Ryan Applebury
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (876 download)

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Book Synopsis Reliability-based Methodology for Bridge Inspection Planning by : Christopher Ryan Applebury

Download or read book Reliability-based Methodology for Bridge Inspection Planning written by Christopher Ryan Applebury and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This research program was created with the goal of improving bridge safety and reliability while also improving the allocation of bridge inspection resources. The research reported herein was completed as a part of a larger project with the objective of developing a recommended bridge inspection practice for bridges within the United States. Traditionally, bridges in the United States are inspected at fixed time intervals of 24 months, with special programs in place to either extend or lessen this interval, based on certain conditions. This fixed inspection interval results in newer bridges, with little or no damage, being inspected with the same frequency as older, possibly more deteriorated bridges. This creates a situation where bridge inspection resources are allocated evenly across an inventory even though the inspection needs of certain bridges may be greater than others. Through this research program, a bridge inspection planning methodology has been developed which is based on reliability theory and incorporates the knowledge and expertise of bridge owners to more rationally determine bridge inspection needs. The methodology is based on the determination of the likelihood of failure for specific bridge components based on design, loading, and condition characteristics and the perceived consequence of failure, based on an owner's expertise and experience. By combining these expressions of likelihood and consequence for each component, a maximum inspection interval for the entire bridge can be determined through the use of risk matrices.

NCHRP Synthesis 375

Author : George Hearn
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (16 download)

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Book Synopsis NCHRP Synthesis 375 by : George Hearn

Download or read book NCHRP Synthesis 375 written by George Hearn and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Risk-based Bridge Management

Author :
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (614 download)

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Book Synopsis Risk-based Bridge Management by :

Download or read book Risk-based Bridge Management written by and published by . This book was released on 1994 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridge management based on reliability methods permits the selection of the set of repair projects that minimizes the total network risk in a planning horizon. This approach, previously proposed by the authors, uses the Markovian model for the decay of structural components, evaluates the overall reliability of the bridge as a system, and computes risk by taking into consideration the consequences of reduced function. This paper presents important additional aspects of risk-based bridge management. First, genetic algorithms are proposed as an alternative optimization strategy; small and large bridge networks are solved, guiding the solution towards minimum risk. Second, Markovian transition matrices for deterioration and post-inspection Bayesian updating are combined to schedule inspections so that the overall reliability of the bridge network is maximized for a given inspection budget. Results from a simulation study using a real bridge network are presented and compared with current inspection practice.

Risk-Based Bridge Engineering

Author : Khaled Mahmoud
Publisher : CRC Press
ISBN 13 : 1000727238
Total Pages : 320 pages
Book Rating : 4.0/5 (7 download)

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Book Synopsis Risk-Based Bridge Engineering by : Khaled Mahmoud

Download or read book Risk-Based Bridge Engineering written by Khaled Mahmoud and published by CRC Press. This book was released on 2019-08-20 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Risk-based engineering is essential for the efficient asset management and safe operation of bridges. A risk-based asset management strategy couples risk management, standard work, reliability-based inspection and structural analysis, and condition-based maintenance to properly apply resources based on process criticality. This ensures that proper controls are put in place and reliability analysis is used to ensure continuous improvement. An effective risk-based management system includes an enterprise asset management or resource solution that properly catalogues asset attribute data, a functional hierarchy, criticality analysis, risk and failure analysis, control plans, reliability analysis and continuous improvement. Such efforts include periodic inspections, condition evaluations and prioritizing repairs accordingly. This book contains select papers that were presented at the 10th New York City Bridge Conference, held on August 26-27, 2019. The volume is a valuable contribution to the state-of-the-art in bridge engineering.

Bridge Inspection and Rehabilitation

Author : Parsons Brinckerhoff
Publisher : John Wiley & Sons
ISBN 13 : 9780471532620
Total Pages : 350 pages
Book Rating : 4.5/5 (326 download)

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Book Synopsis Bridge Inspection and Rehabilitation by : Parsons Brinckerhoff

Download or read book Bridge Inspection and Rehabilitation written by Parsons Brinckerhoff and published by John Wiley & Sons. This book was released on 1993-01-12 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than a third of America's bridges are considered substandard--either structurally deficient, functionally obsolete or both. Offers first-rate, practical guidance regarding the inspection and rehabilitation of aging bridge infrastructure including all elements involving structure, various materials and design types. Features seismic retrofit and coverage of environmental issues. Each chapter is written by an authority on the subject. Contains top-quality, detailed line illustrations plus photographs of actual rehab projects.