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Instrumentation Proof Testing And Monitoring Of Three Reinforced Concrete Deck On Steel Girder Bridges Prior To During And After Superload
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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:
Book Synopsis Instrumentation, Testing, and Monitoring of a Newly Constructed Reinforced Concrete Deck-on-steel Girder Bridge by :
Download or read book Instrumentation, Testing, and Monitoring of a Newly Constructed Reinforced Concrete Deck-on-steel Girder Bridge written by and published by . This book was released on 2002 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: The measurement and documentation of construction and service effects for a steel stringer bridge will permit evaluation of the complete state of force in a bridge over its lifetime, together with the corresponding causative effects or events. Accumulated versus transient stresses and forces are evaluated through a regular regimen of long-term monitoring, diagnostic truckload and modal impact testing, and structural analysis.
Book Synopsis Instrumentation, Testing, and Monitoring of Reinforced Concrete Deck-on-steel Girder Bridges by : A. E. Aktan
Download or read book Instrumentation, Testing, and Monitoring of Reinforced Concrete Deck-on-steel Girder Bridges written by A. E. Aktan and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Continued Long-term Monitoring of HAM-42-0992 and HAM-126-0881L by : Victor J. Hunt
Download or read book Continued Long-term Monitoring of HAM-42-0992 and HAM-126-0881L written by Victor J. Hunt and published by . This book was released on 2005 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: The measurement and documentation of construction and service effects for a bridge will permit evaluation of the complete state of force in a bridge over its lifetime, together with the corresponding causative effects or events. A complete sensor suite, including a weigh-in-motion (WIM) roadway scale, was incorporated within the construction plans and drawings for two steel-stringer bridges, HAM-42-0992 and HAM-126-0881L, near Cincinnati, Ohio. Both bridges incorporate an integral abutment within their design and construction. The latter is a semicomposite bridge which represents a unique research opportunity in that it was designed with an unusually small span ratio (0.45). Accumulated versus transient stresses and forces will be evaluated by conducting long-term monitoring, diagnostic testing, and structural analysis to simulate different episodes of cause and effect in the construction and service stages of these bridges and correlating these with the recorded data. This research will also allow: the conceptualization of less understood or unknown phenomena that influence bridge performance, the verification of design assumptions and rating models, and the continued evaluation of emerging technologies for infrastructure monitoring and assessment.
Download or read book Transportation Research Record written by and published by . This book was released on 1999 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Various Bridge Design Issues written by and published by . This book was released on 1999 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Instrumentation, Testing and Monitoring of Reiforced Concrete Deck-on-steel Girder Bridges by : Alper Levi
Download or read book Instrumentation, Testing and Monitoring of Reiforced Concrete Deck-on-steel Girder Bridges written by Alper Levi and published by . This book was released on 1995 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ohio Documents written by and published by . This book was released on 1995 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis State Planning and Research Program by :
Download or read book State Planning and Research Program written by and published by . This book was released on 1999 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Field Instrumentation and Live Load Testing to Evaluate Behaviors of Three Reinforced Concrete Bridge Decks by : Peter James Smolenski
Download or read book Field Instrumentation and Live Load Testing to Evaluate Behaviors of Three Reinforced Concrete Bridge Decks written by Peter James Smolenski and published by . This book was released on 2004 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Acoustic Emissions Testing Procedures Applicable to Conventionally Reinforced Concrete Deck Girder Bridges Subjected to Diagonal Tension Cracking by : Steven C. Lovejoy
Download or read book Development of Acoustic Emissions Testing Procedures Applicable to Conventionally Reinforced Concrete Deck Girder Bridges Subjected to Diagonal Tension Cracking written by Steven C. Lovejoy and published by . This book was released on 2006 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt: A need exists to develop a non-destructive testing technique that can identify the formation and propagation of diagonal tension cracks in conventionally steel reinforced concrete deck girder (RCDG) highway bridges in the State of Oregon. Such a technique could be included into a structural health monitoring (SHM) system installed on specific bridges to automatically monitor the current state of structural damage in primary load supporting elements and provide notification of recent damage to bridge engineers in nearly real time. This research investigates the practical application of AE used to supplement a conventional SHM on vintage RCDG bridges. Background work presented in the Appendices investigates stress wave propagation in non-reinforced and steel reinforced concrete media. Based on the characterization of stress wave speeds, amplitude attenuation, frequency content and wave forms found in concrete media, testing methods are developed and applied to 31 full sized RCDG test specimens that include variations in loading, load capacity and structural detailing. Several different AE test procedures are used to characterize the damage states of the test beams as they are progressively loaded to failure. Four previously developed AE parameters that characterize both damage progression and damage state are applied which include the Felicity and Calm Ratios, Severity and the Historic Index. Both Felicity and Calm Ratios were found to respond to the damage state of the test beam as determined from more conventional assessment methods such as crack width and load. For the practical in-service loading ranges of 20 to 80% of ultimate capacity both the Felicity and Calm Ratios were found to respond in a nearly linear manner with increasing damage. Three categories of damage state are defined which are based on the ODOT crack comparator tool which is used for in-service maintenance inspections of these bridges. Felicity and Calm Ratio values are related to these damage states for the specific type of bridge girders being tested and can be used to estimate in-service damage states. The Severity and Historic Index responses were found to be an effective means of identifying the formation and extension of diagonal tension cracks as they developed. Threshold levels for these two parameters are identified for specific AE sensor types when applied to this class of bridge girder. A preliminary set of AE testing and analysis procedures were developed that were applied to three in-service bridges. These bridge tests used both controlled and ambient loading protocols. The structural response to each load case was quantified by using both crack width motion and reinforcing steel strain range. These structural parameters were correlated with the AE data. The Calm Ratio was found to be of practical importance and that the values recorded were in reasonably good agreement with the laboratory data once the imposed loads and current crack widths were considered. The Severity and Historic Index were also found to be of practical importance to bridge testing and structural health monitoring as they were found to be very sensitive to increasing damage, yet exhibit good stability provided enough AE activity was present. A recommend set of guidelines and practices for applying AE to vintage RCDG bridges is developed and presented.
Book Synopsis Instrumented Monitoring of a Reinforced Concrete Deck on Steel Stringer Highway Bridge Through Construction by : Kirk A. Grimmelsman
Download or read book Instrumented Monitoring of a Reinforced Concrete Deck on Steel Stringer Highway Bridge Through Construction written by Kirk A. Grimmelsman and published by . This book was released on 1997 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Instrumentation and Monitoring of High Performance Concrete Prestressed Bridge Girders by : Vellore S. Gopalaratnam
Download or read book Instrumentation and Monitoring of High Performance Concrete Prestressed Bridge Girders written by Vellore S. Gopalaratnam and published by . This book was released on 2001 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a Field Corrosion Detection and Monitoring Program for Reinforced Concrete Bridges by : David W. Fowler
Download or read book Development of a Field Corrosion Detection and Monitoring Program for Reinforced Concrete Bridges written by David W. Fowler and published by . This book was released on 1995 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acoustic Emission Sensing for Crack Monitoring in Prefabricated and Prestressed Reinforced Concrete Bridge Girders by : Robert Lee Worley (II)
Download or read book Acoustic Emission Sensing for Crack Monitoring in Prefabricated and Prestressed Reinforced Concrete Bridge Girders written by Robert Lee Worley (II) and published by . This book was released on 2019 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prefabricated and pre-stressed reinforced concrete beams and girders are integral components of many highway structures, including those built by rapid construction techniques. Concerns exist regarding the development of cracks during curing, form removal, detensioning, transport, installation, and operation. Non-destructive, Acoustic Emission (AE) sensing techniques have the potential for detecting and locating cracking in prefabricated, pre-stressed concrete girders used as Prefabricated Bridge Elements and Systems (PBES) used in rapid construction practices as part of a Quality Assurance/Quality Control (QA/QC) program. AE sensing records transient elastic waves produced by the release of stored elastic energy resulting in plastic deformations (i.e., crack nucleation and growth) with an array of point sensors. The AE instrument system is relatively portable which can allow for it to be an option for both off-site fabrication QA/QC as well as on-site field QA/QC. This thesis presents a multi-stage research initiative on acoustic emission monitoring of prefabricated and pre-stressed reinforced concrete beams used in highway bridge construction during detensioning, craned removal from formwork and transport to bridge sites, along with supporting laboratory tests and numerical analysis. The specific objectives of this research were to: 1. Identify suitable instruments to monitor pre-stressed and/or post-tensioned concrete girders for cracking activity; 2. Design and develop a reusable instrumentation package; 3. Measure performance and condition of concrete girders during fabrication and transport; and 4. Identify test protocols and possible accept/fix/reject criteria for structural elements based on information from monitoring system. Presented are results from laboratory, full-scale girder fabrication, and transport monitoring, along with overall conclusions and recommendations for future research.
Book Synopsis Acoustic Emission Testing of In-service Conventionally Reinforced Concrete Deck Girder Superstructures on Highway Bridges by : Steven C. Lovejoy
Download or read book Acoustic Emission Testing of In-service Conventionally Reinforced Concrete Deck Girder Superstructures on Highway Bridges written by Steven C. Lovejoy and published by . This book was released on 2008 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three reports were produced from research sponsored by the Oregon Department of Transportation on acoustic emission (AE). The first describes the evaluation of AE techniques applied to two reinforced concrete (RC) bridge girders, which were loaded to mimic in-service conditions. The main goal was to get a thorough understanding of how AE methods can be used with RC and in what way these methods can assist in maintaining the states aging RC deck girder bridges. Recommended settings for data acquisition and processing were evaluated. In addition to the complex full-scale beam components, studies were performed on smaller test specimens that improved understanding of stress wave propagation through reinforced concrete and the response of acoustic emission sensors in detecting these waves. Some qualitative and quantitative assessment methodologies were described, and examples and limitations of the methods were presented. Source locations in three dimensions were performed, and strategies on how to best deploy sensors were evaluated using Monte Carlo Simulations.
