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Structural Condition Assessment And Service Load Performance Of Deteriorated Prestressed Concrete Deck Beam Bridges
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Book Synopsis Structural Condition Assessment and Service Load Performance of Deteriorated Prestressed Concrete Deck Beam Bridges by : Juan Bolivar Fuentes
Download or read book Structural Condition Assessment and Service Load Performance of Deteriorated Prestressed Concrete Deck Beam Bridges written by Juan Bolivar Fuentes and published by . This book was released on 2002 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural Condition Assessment and Service Load Performance of Deteriorated Pretensioned Deck Beam Bridges by : Neil Middleton Hawkins
Download or read book Structural Condition Assessment and Service Load Performance of Deteriorated Pretensioned Deck Beam Bridges written by Neil Middleton Hawkins and published by . This book was released on 2003 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural Condition Assessment and Service Load Performance of Deteriorated Pretensioned Deck Beam Bridges by : Neil Middleton Hawkins
Download or read book Structural Condition Assessment and Service Load Performance of Deteriorated Pretensioned Deck Beam Bridges written by Neil Middleton Hawkins and published by . This book was released on 2003 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Condition Assessment and Methods of Abatement of Prestressed Concrete Box-beam Deterioration, Phase II by :
Download or read book Condition Assessment and Methods of Abatement of Prestressed Concrete Box-beam Deterioration, Phase II written by and published by . This book was released on 2009 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: Side-by-side box-beam bridge constitutes approximately 17 percent of bridges built or replaced annually on public roads and there is a renewed thrust to use this bridge type for rapid construction under the Highway for LIFE program. Further, failure of a fascia girder of Lakeview Drive bridge in Pennsylvania on December 27, 2005 and with a large number of aging bridges in the U.S., highway agencies are concerned about the safety of similar bridges. This project was developed to evaluate the capacity of distressed box-beam through load testing; investigate the impact of distress types identified during phase I of this project on flexure and shear capacities of a beam in a structural system; identify proper materials and methods for long lasting repairs to improve the structural integrity of distressed box-beam bridges; and by performing simulations of the construction process using finite element (FE) models investigate stresses developed in components during each stage of construction and under operation, develop recommendations for changes or modifications to the design procedures, construction process, material specifications, and to the maintenance and repair techniques of side-by-side boxbeam bridge deck. Six tasks were performed in this project ranging from literature review, instrumentation and load testing of a severely deteriorated fascia beam, laboratory investigation of fresh and hardened (durability) properties of shear key grout and repair materials, evaluation of mechanical properties of shear key grout and repair materials, construction process simulation, and evaluation of flexural and shear capacities of distressed beams considering structural system behavior. Recommendations of this project include selection of repair and shear key material, development of comprehensive inspection procedures to assure bridge safety and implementation of the rational design procedure given in the report for improved durability.
Book Synopsis Condition Assessment and Methods of Abatement of Prestressed Concrete Box-beam Deterioration, Phase II by :
Download or read book Condition Assessment and Methods of Abatement of Prestressed Concrete Box-beam Deterioration, Phase II written by and published by . This book was released on 2009 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Side-by-side box-beam bridge constitutes approximately 17 percent of bridges built or replaced annually on public roads and there is a renewed thrust to use this bridge type for rapid construction under the Highway for LIFE program. Further, failure of a fascia girder of Lakeview Drive bridge in Pennsylvania on December 27, 2005 and with a large number of aging bridges in the U.S., highway agencies are concerned about the safety of similar bridges. This project was developed to evaluate the capacity of distressed box-beam through load testing; investigate the impact of distress types identified during phase I of this project on flexure and shear capacities of a beam in a structural system; identify proper materials and methods for long lasting repairs to improve the structural integrity of distressed box-beam bridges; and by performing simulations of the construction process using finite element (FE) models investigate stresses developed in components during each stage of construction and under operation, develop recommendations for changes or modifications to the design procedures, construction process, material specifications, and to the maintenance and repair techniques of side-by-side boxbeam bridge deck. Six tasks were performed in this project ranging from literature review, instrumentation and load testing of a severely deteriorated fascia beam, laboratory investigation of fresh and hardened (durability) properties of shear key grout and repair materials, evaluation of mechanical properties of shear key grout and repair materials, construction process simulation, and evaluation of flexural and shear capacities of distressed beams considering structural system behavior. Recommendations of this project include selection of repair and shear key material, development of comprehensive inspection procedures to assure bridge safety and implementation of the rational design procedure given in the report for improved durability.
Book Synopsis Field Test and Analysis of Two Prestressed Concrete Bridges After Deck Replacement with Frp Panels by : Madhan Kumar Kantha Samy
Download or read book Field Test and Analysis of Two Prestressed Concrete Bridges After Deck Replacement with Frp Panels written by Madhan Kumar Kantha Samy and published by . This book was released on 2007 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridges B-0071 and B-0171 in Hamilton County, Ohio have been in service for about fifty years. They are short span bridges with prestressed concrete girders. Until late 2001, they had conventional reinforced concrete decks, which have been replaced with fiber reinforced polymer (FRP) decks. Two girders in bridge B-0171 were replaced with new prestressed girders. These bridges are significant as there are few instances of FRP decks on concrete girders. The Hamilton County Engineers Office contracted with the Civil Engineering Department at the University of Cincinnati to perform load testing on the bridges. Information gained from this research will seek to confirm the safety of the new technology, evaluate construction and design techniques with reference to the FRP deck, and determine overall performance of the bridge to provide understanding of the system. The two short span prestressed concrete bridges with fiber reinforced polymer decks were subjected to four sets of nondestructive truckload testing. Strain gauges were placed along the height of the girder cross-section, and longitudinally and transversely across the bottom of the deck. Displacement transducers were placed to measure overall girder displacement, relative deck displacement, deck panel separation, and deck-girder connection separation. A three-dimensional finite element analysis model was created to replicate the performance of each bridge. The two new prestressed girders in bridge B-0171 strengthened the bridge considerably and increased its load carrying capacity. But the old prestressed girders in bridge B-0071 and bridge B-0171 did not show any sign of deterioration. The four sets of test data collected over a two-year period show that the age effect on structural behavior is very small for both the bridges. The deck had very little influence on the distribution of loads in the structure for these bridges. Due to low deck stiffness and incomplete connectivity, the FRP deck did little to strengthen the girders. The long term monitoring of the deck result complied with the short term testing as reported by Eder8. The finite element model closely matched with the structural components of the original bridge. The new improved model is a better representation as it was calibrated with four sets of field data collected over a period of two years. The field test data from both tests shows that the girders are simply supported on the abutment. But the girders in the model are designed as fixed end beams to have a reasonable value for the modulus of concrete used in the model. In reality it can be assumed that the support condition is between fixed and simply supported. It was also demonstrated that the deck had very little influence on the distribution of loads in the structure for these bridges. The majority of the load transfer between girders was most likely due to the diaphragms. The Impact Factor based on one set of experimental results was 1.217. However, for analysis the LRFD value of 1.33 was used. The Load Rating Factor for bridge B-0071 was 1.66 and for bridge B-0171 was 2.48 with the governing truck loading being the Design load Type Tandem. These rating factors were based on girder performance only due to insufficient deck information.
Book Synopsis Bridge Evaluation, Repair and Rehabilitation by : A.S. Nowak
Download or read book Bridge Evaluation, Repair and Rehabilitation written by A.S. Nowak and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evaluation, repair and rehabilitation of bridges are increasingly important topics in the effort to deal with the deteriorating infrastructure. For example, in the United States about 40 percent of the nation's 570,000 bridges are classified, according to the Federal Highway Administra tion's (FHW A) criteria, as deficient and in need of rehabilitation and replacement. In other countries the situation is similar. FHW A estimates the cost of a bridge replacement and reha bilitation program at 50 billion dollars. The major factors that have contributed to the present situation are: the age, inadequate maintenance, increasing load spectra and environmental contamination. The deficient bridges are posted, repaired or replaced. The disposition of bridges involves clear economical and safety implications. To avoid high costs of replacement or repair, the evaluation must accurately reveal the present load carrying capacity of the struc ture and predict loads and any further changes in the capacity (deterioration) in the applicable time span. Accuracy of bridge evaluation can be improved by using the recent developments in bridge diagnostics, structural tests, material tests, structural analysis and probabilistic methods. There is a need for an international exchange of advanced experience to increase the research effi ciency. The Workshop is organized on the premise that the exchange of existing American and European experience in the area of bridge evaluation, repair and rehabilitation is beneficial for both parties involved.
Book Synopsis Adjacent Precast Concrete Box Beam Bridges by : H. G. Russell
Download or read book Adjacent Precast Concrete Box Beam Bridges written by H. G. Russell and published by Transportation Research Board. This book was released on 2009 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.
Book Synopsis Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks by : Tulio Nogueira Bittencourt
Download or read book Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks written by Tulio Nogueira Bittencourt and published by CRC Press. This book was released on 2016-11-17 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maintenance, Monitoring, Safety, Risk and Resilience of Bridges and Bridge Networks contains the lectures and papers presented at the Eighth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2016), held in Foz do Iguaçu, Paraná, Brazil, 26-30 June, 2016. This volume consists of a book of extended abstracts and a DVD containing the full papers of 369 contributions presented at IABMAS 2016, including the T.Y. Lin Lecture, eight Keynote Lectures, and 360 technical papers from 38 countries. The contributions deal with the state-of-the-art as well as emerging concepts and innovative applications related to all main aspects of bridge maintenance, safety, management, resilience and sustainability. Major topics covered include: advanced materials, ageing of bridges, assessment and evaluation, bridge codes, bridge diagnostics, bridge management systems, composites, damage identification, design for durability, deterioration modeling, earthquake and accidental loadings, emerging technologies, fatigue, field testing, financial planning, health monitoring, high performance materials, inspection, life-cycle performance and cost, load models, maintenance strategies, non-destructive testing, optimization strategies, prediction of future traffic demands, rehabilitation, reliability and risk management, repair, replacement, residual service life, resilience, robustness, safety and serviceability, service life prediction, strengthening, structural integrity, and sustainability. This volume provides both an up-to-date overview of the field of bridge engineering as well as significant contributions to the process of making more rational decisions concerning bridge maintenance, safety, serviceability, resilience, sustainability, monitoring, risk-based management, and life-cycle performance using traditional and emerging technologies for the purpose of enhancing the welfare of society. It will serve as a valuable reference to all involved with bridge structure and infrastructure systems, including students, researchers and engineers from all areas of bridge engineering.
Book Synopsis Utilizing Technologies to Investigate Structural Performance of Bridges at Local and Global Levels by : Marwan Debees
Download or read book Utilizing Technologies to Investigate Structural Performance of Bridges at Local and Global Levels written by Marwan Debees and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research aims to utilize available technologies to assess the structural performance of prestressed concrete bridges. The structural performance is investigated at the local level in the form of delamination and spalling and at the global level in the form of strength and serviceability load rating and reliability index. At the local level, Infrared scanning combined with high-definition image scanning is utilized to provide a rapid condition assessment of the bridge components (deck, superstructure, and substructure). Two scans are performed, a year apart. The results of the two scans are compared to each other and to the bridge element level inspection report. A new approach is developed to identify areas where further evaluation is recommended. At the global level, A novel approach is introduced to assess the impact of girders' deterioration on the load rating, component reliability index, and system reliability index of the bridge. The impact of repairs to the girders is also assessed while accounting for uncertainties in the loading, capacity terms, and repair procedures. Computer vision-based load test, validated and supplemented by strain gauge and potentiometers sensors, is utilized to measure deflection under static and dynamic loading conditions. The effect of field-derived distribution factors and dynamic impact factors is investigated for the load rating and component and system reliability indices. The findings of this investigation are used to develop a decision tree for recommending the utilization computer vision-based load test to explore possible increases in load rating or target component reliability.
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.
Book Synopsis Deterioration Prediction Modeling for the Condition Assessment of Concrete Bridge Decks by : Aqeed Mohsin Chyad
Download or read book Deterioration Prediction Modeling for the Condition Assessment of Concrete Bridge Decks written by Aqeed Mohsin Chyad and published by . This book was released on 2018 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridges are key elements in the US transportation system. There are more than six hundred thousand bridges on the highway system in the United States. Approximately one third of these bridges are in need of maintenance and will cost more than $120 billion to rehabilitate or repair. Several factors affect the performance of bridges over their life spans. Identifying these factors and accurately assessing the condition of bridges are critical in the development of an effective maintenance program. While there are several methods available for condition assessment, selecting the best technique remains a challenge. Therefore, developing an accurate and reliable model for concrete bridge deck deterioration is a key step towards improving the overall bridge condition assessment process. Consequently, the main goal of this dissertation is to develop an improved bridge deck deterioration prediction model that is based on the National Bridge Inventory (NBI) database. To achieve the goal, deterministic and stochastic approaches have been investigated to model the condition of bridge decks. While the literatures have typically proposed the Markov chain method as the best technique for the condition assessment of bridges, this dissertation reveals that some probability distribution functions, such as Lognormal and Weibull, could be better prediction models for concrete bridge decks under certain condition ratings. A new universal framework for optimizing the performance of prediction of concrete bridge deck condition was developed for this study. The framework is based on a nonlinear regression model that combines the Markov chain method with a state-specific probability distribution function. In this dissertation, it was observed that on average, bridge decks could stay much longer in their condition ratings than the typical 2-year inspection interval, suggesting that inspection schedules might be extended beyond 2 years for bridges in certain condition rating ranges. The results also showed that the best statistical model varied from one state to another and there was no universal statistical prediction model that can be developed for all states. The new framework was implemented on Michigan data and demonstrated that the prediction error in the combined model was less than each of the two models (i.e. Markov and Lognormal). The results also showed that average daily traffic, age, deck area, structure type, skew angle, and environmental factors have significant impact on the deterioration of concrete bridge decks. The contributions of the work presented in this dissertation include: 1) the identification of the significant factors that impact concrete bridge deck deterioration; 2) the development of a universal deterioration prediction framework that can be uniquely tailored for each state’s data; and 3) supporting the possibility of extending inspection schedules beyond the typical 2-year cycles. Future work may involve: 1) evaluating each of the factors that impact the deterioration rates in more depth by refining the investigation ranges; 2) investigating the possibility of revising the regular bridge deck inspection intervals beyond the 2-year cycles; and 3) developing deterioration prediction models for other bridge elements (i.e. superstructure and substructure) using the framework developed in this dissertation.
Author :fib Fédération internationale du béton Publisher :fib Fédération internationale du béton ISBN 13 :9782883940628 Total Pages :316 pages Book Rating :4.9/5 (46 download)
Book Synopsis Monitoring and Safety Evaluation of Existing Concrete Structures by : fib Fédération internationale du béton
Download or read book Monitoring and Safety Evaluation of Existing Concrete Structures written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2003 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: The condition assessment of aged structures is becoming a more and more important issue for civil infrastructure management systems. The continued use of existing systems is, due to environmental, economical and socio-political assets, of great significance and is growing larger every year. Thus the extent of necessary repair of damaged reinforced concrete structures is of major concern in most countries today. Monitoring techniques may have a decisive input to limit expenditures for maintenance and repair of existing structures. Modern test and measurement methods as well as computational mechanics open the door for a wide variety of monitoring applications. The need for quantitative and qualitative knowledge has led to the development and improvement of surveillance techniques, which have already found successful application in other disciplines such as medicine, physics and chemistry. The design of experimental test and measurement systems is inherently an interdisciplinary activity. The specification of the instrumentation to measure the structural response will involve the skills of civil, electrical and computer engineers. The main aim of fib Commission 5, Structural servicer life aspects, is to provide a rational procedure to obtain an optimal technical-economic performance of concrete structures in service and to ensure a feedback of experience gained to design, execution, maintenance and rehabilitation. Against this background fib Task Group 5.1 Monitoring and Safety Evaluation of Existing Concrete Structures had been established to evaluate the existing practice worldwide. The objective of this state-of-art report is to summarize the most important inspection and measuring methods, to describe the working process and to evaluate the applicability to structural monitoring. Particular emphasis is placed upon non-destructive systems, lifetime monitoring, data evaluation and safety aspects.
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 2022-06-26 with total page 5491 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 Engineering for Structural Stability in Bridge Construction by : Federal Highway Federal Highway Administration
Download or read book Engineering for Structural Stability in Bridge Construction written by Federal Highway Federal Highway Administration and published by . This book was released on 2020-07-19 with total page 669 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual is intended to serve as a reference. It will provide technical information which will enable Manual users to perform the following activities:Describe typical erection practices for girder bridge superstructures and recognize critical construction stagesDiscuss typical practices for evaluating structural stability of girder bridge superstructures during early stages of erection and throughout bridge constructionExplain the basic concepts of stability and why it is important in bridge erection* Explain common techniques for performing advanced stability analysis along with their advantages and limitationsDescribe how differing construction sequences effect superstructure stabilityBe able to select appropriate loads, load combinations, and load factors for use in analyzing superstructure components during constructionBe able to analyze bridge members at various stages of erection* Develop erection plans that are safe and economical, and know what information is required and should be a part of those plansDescribe the differences between local, member and global (system) stability
Book Synopsis Test to Failure of a 54 Ft. Deteriorated Pretensioned Precast Concrete Deck Beam by : Neil Middleton Hawkins
Download or read book Test to Failure of a 54 Ft. Deteriorated Pretensioned Precast Concrete Deck Beam written by Neil Middleton Hawkins and published by . This book was released on 2003 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural Sensing, Health Monitoring, and Performance Evaluation by : D. Huston
Download or read book Structural Sensing, Health Monitoring, and Performance Evaluation written by D. Huston and published by CRC Press. This book was released on 2010-09-21 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural health monitoring (SHM) uses one or more in situ sensing systems placed in or around a structure, providing real-time evaluation of its performance and ultimately preventing structural failure. Although most commonly used in civil engineering, such as in roads, bridges, and dams, SHM is now finding applications in other engineering envir
