Download or read book Identification of Performance Indicators and Development of Performance Based Specifications for Bridge Decks written by Thomas H. Wenzel and published by . This book was released on 2000 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Identification of Performance Indicators and Development of Performance Based Specifications for Bridge Decks written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance Specifications for Rapid Highway Renewal written by Sidney Scott III and Linda Konrath and published by Transportation Research Board. This book was released on with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, describes suggested performance specifications for different application areas and delivery methods that users may tailor to address rapid highway renewal project-specific goals and conditions.

Download or read book Intermodal Surface Transportation Planning and Research Work Program written by Wisconsin. Department of Transportation and published by . This book was released on with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance Specification for Tennessee Bridge Decks written by Brian Ray Buchanan and published by . This book was released on 2011 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: In today's world of ever increasing demand on a weakening infrastructure, concentration is being firmly placed on increasing the sustainability of that infrastructure. Tennessee's bridges and the concrete decks, on which the public travels, require a large part of the state's infrastructure spending. Research has shown the current durability standards of Tennessee's bridge decks could be significantly improved which would both increase service life and reduce maintenance costs of these structures. This research concentrates on greatly increasing the lifespan of these bridge decks, throughout the state, through an improved construction specification which will encourage the increased use of supplementary cementitious materials. These improved construction specifications would be performance based in nature and would give suppliers increased freedom to provide a more durable product while simultaneously reducing costs. This new performance based specification will remove the current stringent prescriptive requirements and will use the measurement of surface resistivity (SR) as a key variable to be assessed as a measure of performance. The ultimate goal of implementing a performance based specification is to achieve more durable bridge deck concrete. The proposed specification presented herein grew out of two years of research related to assessing the current situation regarding bridge deck concrete in Tennessee and the development of methodology to perform this assessment.

Download or read book Framework for Development of Performance related Specifications for Hot mix Asphaltic Concrete written by David A. Anderson and published by Transportation Research Board. This book was released on 1990 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Waterproofing Membranes for Concrete Bridge Decks written by David G. Manning and published by Transportation Research Board. This book was released on 1995 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to research, specifications, materials, design, and construction engineers; contract and specification administrators; agency project managers and staff; and concrete bridge deck construction contractors. This synthesis describes the state of the practice with respect to the development and present status of waterproofing membranes for concrete bridge decks. This report of the Transportation Research Board describes the use of waterproofing systems applied to new bridge decks and the rehabilitation of deteriorated concrete bridge decks. In addition, this synthesis describes current practice with regard to methods for assessing the effectiveness of membranes, criteria for use, installation practices, and factors that affect the performance of waterproofing systems in new construction and rehabilitation. Suggestions for future research are also included.

Download or read book Department of Transportation and Related Agencies Appropriations for 1994 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations and published by . This book was released on 1993 with total page 1198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Integrated Decision Support Methodology for Bridge Deck Management Under Performance based Contracting written by Mohammed Alsharqawi and published by . This book was released on 2018 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridges are vital elements of the civil infrastructure system in terms of mobility, environment, economy, and development of communities. Maintaining bridges at sufficient functional and safety levels is an important mandate to ministries of transportation. The 2016 Canada infrastructure report card alarmed that more than 26% of bridges in Canada have deteriorated and the bridges are mostly rated as fair, poor or very poor (CIRC 2016). In the United States, the report card on America's infrastructure assigned grade "C+" to bridge infrastructure (ASCE 2017). Hence, developing rational decision support methods that can assist in managing the vast bridge infrastructure is of paramount importance. This research aimed toward developing a decision support methodology for concrete bridges capable for optimizing the Maintenance, Repair and Replacement (MRR) actions under Performance-Based Contracting (PBC) arrangement through implementing the following steps: i) develop an integrated condition assessment and rating model, ii) develop a forecasting model to assess bridge condition reliability and predict future deteriorations/improvements, iii) develop short- and long-term optimized rehabilitation plans, and iv) design a PBC-based framework for rehabilitation decisions. Upon studying bridge inspection standards and current practices, the research introduces the Quality Function Deployment (QFD) theory and Weibull Distribution Function (WDF) to produce novel methods to rate the current bridge conditions and forecast future performance. These methods integrate data extracted from visual inspection and Ground Penetrating Radar (GPR) surveys. The k-means clustering technique is utilized to develop a rating index that recommends suitable MRR actions based on an integrated condition rating. The Genetic Algorithm (GA) optimization technique is applied to select the best combinations of rehabilitation strategies under the PBC scheme. The integrated rating along with the GA optimization ultimately develop a recommended work program that considers the identified performance triggers and budget constraints. The research contributes a novel PBC-based decision support framework to the area of bridge management that enhances efficiency in implementing MRR strategies while maintaining the delicate balance between the different stakeholders' requirements and goals. The developed methodology is implemented and tested on data extracted from bridge inspection reports and GPR scans, mainly on bridges in Quebec, Canada. Ministries of transportation can benefit from the condition rating and deterioration modeling to assess their bridges' condition and to interfere and do a rehabilitation action before reaching the end of useful service life. The GA-based model provides the maintenance contractors with optimized interventions plans that specify what type of MRR actions to do and when. Further, it assists the ministries to set the budget for such projects. The PBC framework is expected to assist both the transportation agencies and maintenance contractors in arriving at a fair contract value while maintaining the desired bridge performance.

Download or read book Bridge Deck Joint sealing Systems written by Howard, Needles, Tammen & Bergendoff and published by Transportation Research Board National Research. This book was released on 1979 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 616 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.

Download or read book Department of Transportation and Related Agencies Appropriations for 1999 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations and published by . This book was released on 1998 with total page 2014 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Center for Transportation Research Bureau of Engineering Research the University of Texas at Austin written by University of Texas at Austin. Center for Transportation Research and published by . This book was released on 1994 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Survey to Determine the Impact of Changes in Specifications and Construction Practices on the Performance of Concrete in Bridge Decks written by Howard Newlon and published by . This book was released on 1974 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: In response to its own research and observations in the early 1960's the Virginia Department of Highways mounted an intensive and extensive effort to improve the performance of concrete in bridge decks. Major elements of this effort included (1) a training and certification program for Department and industry personnel and (2) improved and upgraded specifications for both materials and construction practices. In 1972 a survey was made of 129 randomly selected bridges constructed after 1966, when all the improvements had been formally instituted The performance of these bridges was compared with that of a similar sample that had been surveyed in 1961. In addition to the visual observation of performance measurements of electrical corrosion potentials and depth of concrete cover, were made in the 1972 survey. Based upon this survey the following conclusions and recommendations were drawn: (1) The frequency of early bridge deck scaling has been dramatically reduced by the upgrading of specification requirements and construction practices. Several specific changes such as increased air contents, use of linseed oil treatments as well as increased awareness of the problem all contribute to this improvement. Because concrete susceptible to scaling usually exhibits the defect at an early age this is an encouraging result The elimination of scaling was a major target of the specification upgrading effort. The success of this effort is evident. (2) Transverse and random cracking are indicated to be more frequent than before the upgrading. The reason for the increase in transverse cracking is not apparent and there is other evidence that the indicated increase in random cracking is related to closer observation and differences in classifications rather than to real causes. The severity of cracking does not seem serious enough to warrant attention. Real differences if any will become more apparent with time. (3) The frequency of all other defects is very low. Based upon previous studies this will undoubtedly increase with age, traffic, etc., but experience suggests that serious problems are indicated at comparatively early ages. (4) The measured average cover over reinforcement is fortunately significantly greater than that specified. For the two levels of cover specified, 8 and 16 percent of the measurements are less than required. This is believed to reflect an acceptable level of control. (5) Ninety-five percent of the spans have average corrosion potentials below 0.20 volt which indicates no active corrosion. On one percent of the spans the average values are above 0.40 volt which suggests the presence of active corrosion. The potential for corrosion will increase with age and exposure to deicing chemicals.

Download or read book A Performance Specification for Bridge Deck Joint Sealing Systems written by Arthur Linfante and published by . This book was released on 1983 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ground Penetrating Radar Theory and Applications written by Harry M. Jol and published by Elsevier. This book was released on 2008-12-08 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ground-penetrating radar (GPR) is a rapidly developing field that has seen tremendous progress over the past 15 years. The development of GPR spans aspects of geophysical science, technology, and a wide range of scientific and engineering applications. It is the breadth of applications that has made GPR such a valuable tool in the geophysical consulting and geotechnical engineering industries, has lead to its rapid development, and inspired new areas of research in academia. The topic of GPR has gone from not even being mentioned in geophysical texts ten years ago to being the focus of hundreds of research papers and special issues of journals dedicated to the topic. The explosion of primary literature devoted to GPR technology, theory and applications, has lead to a strong demand for an up-to-date synthesis and overview of this rapidly developing field. Because there are specifics in the utilization of GPR for different applications, a review of the current state of development of the applications along with the fundamental theory is required. This book will provide sufficient detail to allow both practitioners and newcomers to the area of GPR to use it as a handbook and primary research reference.*Review of GPR theory and applications by leaders in the field*Up-to-date information and references*Effective handbook and primary research reference for both experienced practitioners and newcomers

Download or read book Synthesis of Highway Practice written by National Cooperative Highway Research Program and published by . This book was released on 1995 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt: