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Diagnostic And Proof Load Tests On Bridges
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Book Synopsis Diagnostic and Proof Load Tests on Bridges by : Fikret Necati Catbas
Download or read book Diagnostic and Proof Load Tests on Bridges written by Fikret Necati Catbas and published by Frontiers Media SA. This book was released on 2020-12-11 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Book Synopsis Load Testing of Bridges by : Eva Lantsoght
Download or read book Load Testing of Bridges written by Eva Lantsoght and published by CRC Press. This book was released on 2019-06-19 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: Load Testing of Bridges, featuring contributions from almost fifty authors from around the world across two interrelated volumes, deals with the practical aspects, the scientific developments, and the international views on the topic of load testing of bridges. Volume 12, Load Testing of Bridges: Current practice and Diagnostic Load Testing, starts with a background to bridge load testing, including the historical perspectives and evolutions, and the current codes and guidelines that are governing in countries around the world. The second part of the book deals with preparation, execution, and post-processing of load tests on bridges. The third part focuses on diagnostic load testing of bridges. This work will be of interest to researchers and academics in the field of civil/structural engineering, practicing engineers and road authorities worldwide.
Book Synopsis Load Testing of Bridges by : Eva Lantsoght
Download or read book Load Testing of Bridges written by Eva Lantsoght and published by CRC Press. This book was released on 2019-06-26 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: Load Testing of Bridges, featuring contributions from almost fifty authors from around the world across two interrelated volumes, deals with the practical aspects, the scientific developments, and the international views on the topic of load testing of bridges. Volume 13, Load Testing of Bridges: Proof Load Testing and the Future of Load Testing, focuses first on proof load testing of bridges. It discusses the specific aspects of proof load testing during the preparation, execution, and post-processing of such a test (Part 1). The second part covers the testing of buildings. The third part discusses novel ideas regarding measurement techniques used for load testing. Methods using non-contact sensors, such as photography- and video-based measurement techniques are discussed. The fourth part discusses load testing in the framework of reliability-based decision-making and in the framework of a bridge management program. The final part of the book summarizes the knowledge presented across the two volumes, as well as the remaining open questions for research, and provides practical recommendations for engineers carrying out load tests. This work will be of interest to researchers and academics in the field of civil/structural engineering, practicing engineers and road authorities worldwide.
Author :Institution of Civil Engineers (Great Britain). National Steering Committee for the Load Testing of Bridges Publisher :Thomas Telford ISBN 13 :9780727727374 Total Pages :88 pages Book Rating :4.7/5 (273 download)
Book Synopsis Guidelines for the Supplementary Load Testing of Bridges by : Institution of Civil Engineers (Great Britain). National Steering Committee for the Load Testing of Bridges
Download or read book Guidelines for the Supplementary Load Testing of Bridges written by Institution of Civil Engineers (Great Britain). National Steering Committee for the Load Testing of Bridges and published by Thomas Telford. This book was released on 1998 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridge authorities in the UK are currently facing a large programme of bridge assessment and strengthening. This has been caused, in part, by the necessity of ensuring that the European Union deadline for allowing 40-tonne lorries on to UK roads can be met. Many bridges have failed theoretical assessments and some bridge owners, frustrated by the fact that many failed structures are apparently in good condition and showing no signs of distress, have resorted to load testing their bridges to try to provide additional information. A National Steering Committee for the Load Testing of Bridges was set up to examine the role of bridge load testing as a tool for assisting the assessment process. The National Steering Committee consists of representatives from all major bridge owners including the Highways Agency, the County Surveyors Society, the London Bridges Engineering Group, Railtrack and the British Waterways Board. It also includes representatives from consulting engineers and universities and has the support of the Institution of Civil Engineers. The overall objective of the National Steering Committee was to produce authoritative guidance on load-testing techniques; which could be used by the practising engineer to determine capacities of existing bridges/structures that are safe, prudent and minimize levels of restriction to the transport infrastructure. In June 1995 the committee appointed Rendel Palmer & Tritton in association with Peter Lindsell & Associates and supported by Professors Bakht, Clark and Harding as consultants to carry out a preliminary study of all the available information on bridge load testing. They were to recommend a detailed methodology which would form the basis of a brief to consultants appointed to produce authoritative guidelines for the load testing of bridges. Their report concluded that there is a place for load testing in the evaluation of bridges and other structures and that load testing is a valid tool for bridge managers. They also concluded that there was enough information and experience available to permit safe and effective guidelines to be written. As a result of the preliminary study the National Steering Committee decided to divide the second stage work and restrict the scope of this document to guidelines for supplementary load testing. Work on proof and proving load testing is being carried out by others under the auspices of the Highways Agency. The guidelines contained in this document were not drafted in a prescriptive form, but seek to provide advice on the appropriate use of supplementary load testing as an aid to assessment by calculation. The guidelines have been written to enable engineers to determine: when it is appropriate to consider the use of supplementary load testing; the level of risk, both public safety and economic, associated with load testing; how to plan and carry out a load test including the level of expertise necessary, the appropriate loading methods and the type and quantity of instrumentation required. In addition, the document is intended to be a source of information on load testing, measuring equipment and specialist techniques that engineers can use for reference.
Book Synopsis Load Testing of Bridges: Two Volume Set by : Eva Lantsoght
Download or read book Load Testing of Bridges: Two Volume Set written by Eva Lantsoght and published by CRC Press. This book was released on 2022-07-30 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: Load Testing of Bridges, featuring contributions from almost fifty authors from around the world across two interrelated volumes, deals with the practical aspects, the scientific developments, and the international views on the topic of load testing of bridges. Volume 12, Load Testing of Bridges: Current practice and Diagnostic Load Testing, starts with a background to bridge load testing, including the historical perspectives and evolutions, and the current codes and guidelines that are governing in countries around the world. The second part of the book deals with preparation, execution, and post-processing of load tests on bridges. The third part focuses on diagnostic load testing of bridges. Volume 13, Load Testing of Bridges: Proof Load Testing and the Future of Load Testing, focuses first on proof load testing of bridges. It discusses the specific aspects of proof load testing during the preparation, execution, and post-processing of such a test (Part 1). The second part covers the testing of buildings. The third part discusses novel ideas regarding measurement techniques used for load testing. Methods using non-contact sensors, such as photography- and video-based measurement techniques are discussed. The fourth part discusses load testing in the framework of reliability-based decision-making and in the framework of a bridge management program. The final part of the book summarizes the knowledge presented across the two volumes, as well as the remaining open questions for research, and provides practical recommendations for engineers carrying out load tests. This work will be of interest to researchers and academics in the field of civil/structural engineering, practicing engineers and road authorities worldwide.
Download or read book Primer on Bridge Load Testing written by and published by . This book was released on 2019 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Load testing of bridges to assess bridge performance has been in practice since at least 1891 in Switzerland. In times when engineering models were not as accurate and available as today, a critical step in the construction of a bridge was to load test prior to opening or during the opening ceremony of the bridge. Several bridges, including ones in Serbia, Switzerland, and France, collapsed during such load tests. While advanced calculation methods are available to determine the ultimate capacity of existing structures, load testing provides a useful alternative for such cases where current calculation methods, for one reason or another, cannot provide satisfactory answers to performance questions on existing bridges. AASHTO’s Manual for Bridge Evaluation and the 1998 Manual for Bridge Rating Through Load Testing have been generally used as a guidance to load testing. This TRB E-Circular, TR Circular E-C257: Primer on Bridge Load Testing, provides significant updates to the existing documents to reflect the current state of the practice on bridge load testing. It covers the preparation, execution, and analysis of load tests, including diagnostic and proof tests. If effectively used, these methods can extend the useful life of existing bridges in a cost-effective fashion.
Book Synopsis Diagnostic and Proof Load Testing of NM Bridge 9706 Using High Performance and Locally Developed Ultra High Performance Concrete Girders by : Chris S. Kennedy
Download or read book Diagnostic and Proof Load Testing of NM Bridge 9706 Using High Performance and Locally Developed Ultra High Performance Concrete Girders written by Chris S. Kennedy and published by . This book was released on 2018 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent research at New Mexico State University (NMSU) has led to the development of unique Ultra High Performance Concrete (UHPC) mixture proportions. Utilizing constituents typical of precast production and primarily local to New Mexico, as well as high strength steel fiber reinforcement, these mixture proportions exhibit the advanced characteristics typical of commercially available UHPC. Providing an economic alternative to commercially available products, NMSU's research of non-proprietary UHPC focuses on the mixture optimization, material behavior, and full-scale implementation for structural applications. The research presented in this thesis focuses on the load testing of a newly constructed local bridge in Anthony, New Mexico. Bridge 9706 has a two-span superstructure comprised of a non-proprietary UHPC span and conventional high performance concrete (HPC) span. The bridge girders were fabricated at a region precast plant in New Mexico, using previously developed batching and curing procedures. The fabrication process aided in familiarizing precasters with the production of UHPC and helps to promote further implementation of UHPC in local production and design. After construction, Bridge 9706 was tested with a diagnostic load test and proof load test to investigate the behavior and performance of the bridge. Through comparative analyses of the two-span bridge, evidence of the advanced characteristics and performance of UHPC versus HPC are provided. Additional design recommendations are addressed for the promotion of UHPC for structural applications.
Book Synopsis Reliability-based Criteria for Proof Load Testing of Bridges by : Vijay K. Saraf
Download or read book Reliability-based Criteria for Proof Load Testing of Bridges written by Vijay K. Saraf and published by . This book was released on 1997 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Bridge Load Testing Process for Load Evaluation by :
Download or read book Development of Bridge Load Testing Process for Load Evaluation written by and published by . This book was released on 2003 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridge Diagnostics, Inc. (BDI) developed hardware and software that are specially designed for performing bridge ratings based on data obtained from physical testing. To evaluate the BDI system, the research team performed diagnostic load tests on seven "typical" bridge structures: three steel-girder bridges with concrete decks, two concrete slab bridges, and two steel-girder bridges with timber decks. In addition, a steel-girder bridge with a concrete deck previously tested and modeled by BDI was investigated for model verification purposes. The tests were performed by attaching strain transducers on the bridges at critical locations to measure strains resulting from truck loading positioned at various locations on the bridge. The field test results were used to develop and validate analytical rating models.
Book Synopsis Bridge Safety and Reliability by : Dan M. Frangopol
Download or read book Bridge Safety and Reliability written by Dan M. Frangopol and published by Amer Society of Civil Engineers. This book was released on 1999-01-01 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers applications of modern structural safety and reliability concepts and methods to highway bridge engineering practice. This work contains topics like: Bridge Reliability Concepts and Methods; Modeling of Bridge Loads; Bridge Strength; Reliability of Bridge Components and Systems; Bridge Evaluation; and Nondestructive Bridge Testing.
Book Synopsis Diagnostic Load Testing of Six Old Reinforced Concrete Bridges by : Chad Michael Streeter
Download or read book Diagnostic Load Testing of Six Old Reinforced Concrete Bridges written by Chad Michael Streeter and published by . This book was released on 1998 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: According to data obtained from the National Bridge Inventory (NBI), there are over 12,000 reinforced concrete bridges within the state of Iowa on the county road system Of these 12,000 bridges, over 1,900 are considered structurally deficient based on traditional analytical rating methods. Current rating practices are based on the procedures outlined in the Manual for Maintenance Inspection of Bridges which typically underestimates the load carrying capacity of existing bridges. Since the cost of replacing all these bridges is prohibitive, a procedure needs to be incorporated which gives a more accurate assessment of each bridges actual safe load carrying capacity.
Book Synopsis Diagnostic testing for improved load rating of reinforced concrete slab bridges by : Loyl Clyde Bussell
Download or read book Diagnostic testing for improved load rating of reinforced concrete slab bridges written by Loyl Clyde Bussell and published by . This book was released on 1997 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Diagnostic load tests of two prestressed concrete bridges by : Photis Panayioti Matsis
Download or read book Diagnostic load tests of two prestressed concrete bridges written by Photis Panayioti Matsis and published by . This book was released on 1999 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Load Rating and Evaluation of Two Prestressed Concrete Box Girder Bridges with No Plans Using Non-destructive Load Testing by : Dagmawie Degif Shikurye
Download or read book Load Rating and Evaluation of Two Prestressed Concrete Box Girder Bridges with No Plans Using Non-destructive Load Testing written by Dagmawie Degif Shikurye and published by . This book was released on 2014 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridges with no plans are currently an issue in various states including New Mexico as many exist throughout the United States. Since these bridges have no existing plans and documentation, conventional load rating procedures can't be employed. Therefore in this research project, a four step procedure was developed for the load rating of prestressed concrete box girder bridges without plans. First, the total number and eccentricity of the prestressing strands in the bridge beams are estimated using Magnel diagrams. Second, material properties are obtained from the AASHTO Manual for Bridge Evaluation, AASHTO Standard Specifications, and/or the New Mexico provisions. Second, a Hilti PS 250 Ferroscan is used to detect the steel in the prestressed concrete beams and check the strand estimate and also determine the layout of the shear reinforcement. In addition, the concrete strength is estimated using a Windsor probe. Third, a diagnostic load test is performed to evaluate the in-service behavior and to measure the beam strains under a truck load approximately 60% of the target proof load determined based on the prestressing strand estimate and allowable tensile stress at service. Strain measurements are taken at critical locations to monitor the bridge response during the test. The objectives of this test are to determine the critical transverse truck path (i.e., ones producing the largest measured strains) and compare the measurements with analytical predictions. Fourth, a proof load test is conducted following the critical truck paths and under increasing truck loading until the allowable tensile stress or the target proof load is reached (whichever comes first). Results from the proof test are used to determine rating factors for legal loads. The AASHTOWare BrR software program is also used for purpose of comparison with the rating factors from the proof test. Two prestressed concrete box girder bridges in New Mexico located in Doña Ana County (Bridge 7722) and Bernalillo County (Bridge 8825) were evaluated in this study. For Bridge 7722, the BrR design ratings under HS-20 truck loading were computed as 1.073 and 1.791 at the inventory and operating level, respectively. Inventory and operating factors of 0.882 and 1.403, respectively, were obtained for Bridge 8825. These results, in particular the operating ratings greater than 1.0, provided the needed confidence to proceed with the load tests. Based on the results of the proof tests, rating factors were computed for New Mexico and AASHTO legal loads according to the AASHTO Manual for Bridge Evaluations. The lowest rating factors were 1.09 and 1.17 for Bridge 7722 and Bridge 8825, respectively, which showed that the two bridges did not need to be load posted for legal loads.
Book Synopsis Instrumented Monitoring & Diagnostic Load Testing for Condition Assessment and Evaluation of Bridges by : Alper Levi
Download or read book Instrumented Monitoring & Diagnostic Load Testing for Condition Assessment and Evaluation of Bridges written by Alper Levi and published by . This book was released on 1997 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability by : Joan Ramon Casas
Download or read book Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability written by Joan Ramon Casas and published by CRC Press. This book was released on 2022-06-27 with total page 2646 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability contains lectures and papers presented at the Eleventh International Conference on Bridge Maintenance, Safety and Management (IABMAS 2022, Barcelona, Spain, 11–15 July, 2022). This e-book contains the full papers of 322 contributions presented at IABMAS 2022, including the T.Y. Lin Lecture, 4 Keynote Lectures, and 317 technical papers from 36 countries all around the world. The contributions deal with the state-of-the-art as well as emerging concepts and innovative applications related to the main aspects of safety, maintenance, management, life-cycle, resilience, sustainability and technological innovations of bridges. Major topics include: advanced bridge design, construction and maintenance approaches, safety, reliability and risk evaluation, life-cycle management, life-cycle, resilience, sustainability, standardization, analytical models, bridge management systems, service life prediction, structural health monitoring, non-destructive testing and field testing, robustness and redundancy, durability enhancement, repair and rehabilitation, fatigue and corrosion, extreme loads, needs of bridge owners, whole life costing and investment for the future, financial planning and application of information and computer technology, big data analysis and artificial intelligence for bridges, among others. This volume provides both an up-to-date overview of the field of bridge engineering and significant contributions to the process of making more rational decisions on bridge safety, maintenance, management, life-cycle, resilience and sustainability of bridges for the purpose of enhancing the welfare of society. The volume serves as a valuable reference to all concerned with and/or involved in bridge structure and infrastructure systems, including students, researchers and practitioners from all areas of bridge engineering.
Book Synopsis Instrumentation, Proof-testing and Monitoring of Three Reinforced Concrete Deck-on-steel Girder Bridges Prior to During, and After Superload by : Ahmet Turer
Download or read book Instrumentation, Proof-testing and Monitoring of Three Reinforced Concrete Deck-on-steel Girder Bridges Prior to During, and After Superload written by Ahmet Turer and published by . This book was released on 1998 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
