Methods For Removing Concrete Decks From Bridge Girders

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Methods for Removing Concrete Decks from Bridge Girders

Author : Brent M. Phares
Publisher :
ISBN 13 :
Total Pages : 73 pages
Book Rating : 4.:/5 (897 download)

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Book Synopsis Methods for Removing Concrete Decks from Bridge Girders by : Brent M. Phares

Download or read book Methods for Removing Concrete Decks from Bridge Girders written by Brent M. Phares and published by . This book was released on 2014 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: With ever tightening budgets and limitations of demolition equipment, states are looking for cost-effective, reliable, and sustainable methods for removing concrete decks from bridges. The goal of this research was to explore such methods. The research team conducted qualitative studies through a literature review, interviews, surveys, and workshops and performed small-scale trials and push-out tests (shear strength evaluations). Interviews with bridge owners and contractors indicated that concrete deck replacement was more economical than replacing an entire superstructure under the assumption that the salvaged superstructure has adequate remaining service life and capacity. Surveys and workshops provided insight into advantages and disadvantages of deck removal methods, information that was used to guide testing. Small-scale trials explored three promising deck removal methods: hydrodemolition, chemical splitting, and peeling.

Rapid Replacement of Bridge Decks

Author : Maher K. Tadros
Publisher : Transportation Research Board
ISBN 13 : 9780309062602
Total Pages : 64 pages
Book Rating : 4.0/5 (626 download)

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Book Synopsis Rapid Replacement of Bridge Decks by : Maher K. Tadros

Download or read book Rapid Replacement of Bridge Decks written by Maher K. Tadros and published by Transportation Research Board. This book was released on 1998 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Removing Concrete from Bridges

Author : David G. Manning
Publisher : Transportation Research Board
ISBN 13 : 9780309049184
Total Pages : 52 pages
Book Rating : 4.0/5 (491 download)

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Book Synopsis Removing Concrete from Bridges by : David G. Manning

Download or read book Removing Concrete from Bridges written by David G. Manning and published by Transportation Research Board. This book was released on 1991 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to maintenance engineers, bridge engineers, and others interested in methods and procedures for removing concrete from bridges. Information is provided on equipment and procedures used by states to remove concrete from highway bridges. Repairing structural concrete involves removal and replacement of deteriorated concrete. This report of the Transportation Research Board describes the equipment and procedures used for both complete and partial removal of concrete from bridge decks and substrates.

Evaluating the Impact of Bridge Deck Removal Method on the Performance of Precast/prestressed Concrete I-girders

Author : Shaddi A. Assad
Publisher :
ISBN 13 :
Total Pages : 121 pages
Book Rating : 4.:/5 (952 download)

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Book Synopsis Evaluating the Impact of Bridge Deck Removal Method on the Performance of Precast/prestressed Concrete I-girders by : Shaddi A. Assad

Download or read book Evaluating the Impact of Bridge Deck Removal Method on the Performance of Precast/prestressed Concrete I-girders written by Shaddi A. Assad and published by . This book was released on 2014 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wide flange precast/prestressed concrete I-girders have been widely used by several State Departments of Transportation (DOTs) in the last two decades. These girders have many advantages over standard AASHTO I-girders. Their wide and thick bottom flange accommodates a large number of prestressing strands and their wide and thin top flange provides a shorter deck span, reduced girder weight, greater stability in construction, and adequate platform for workers. Despite these advantages, the wide and thin top flange might be disadvantageous when it comes to deck removal, as it is more susceptible to damage. Therefore there is a need to investigate the impact of deck removal methods on the performance of the supporting wide flange I-girder. In this thesis, two deck removal methods are presented: saw cutting and jack hammering. The two methods were implemented on the Camp Creek Bridge over I-80 in Lancaster County, NE before demolition due to its functional obsolesces. Different saw cutting and jack hammering techniques were performed for deck removal between girders and on top of girders. Data obtained from using similar techniques on three other projects were collected and analyzed. Two girders from the Camp Creek Bridge were taken to the lab for testing in flexure after applying different levels of deck removals around shear connectors and re-decking. Test results indicated adequate performance of the new composite section even when partial deck removal around shear connectors is applied. Another investigation was conducted to evaluate the effect of top flange width on the performance of bridge I-girders. Top flange was assumed to be longitudinally saw cut and its width is reduced by fifty percent. The effects on geometrical properties, flexural capacity, horizontal shear capacity, and deflection were investigated analytically and experimentally under construction loads and service loads. Investigation results indicate that in some cases top flange width does not have significant impact on the structural performance of I-girders.

Bridge Management, Second Edition

Author : M Ryall
Publisher : CRC Press
ISBN 13 : 0080942393
Total Pages : 576 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Bridge Management, Second Edition by : M Ryall

Download or read book Bridge Management, Second Edition written by M Ryall and published by CRC Press. This book was released on 2009-11-27 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the emphasis in construction moves from building new bridges to maintenance and rehabilitation of existing stock, bridge management is becoming an increasingly important subject. This is the definitive, single volume reference for professionals and postgraduates, covering the whole gamut of bridge management topics. Highly illustrated and in ful

Deck Replacement with Precast Reinforced Concrete Segments

Author : John D. Wenzlick
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Deck Replacement with Precast Reinforced Concrete Segments by : John D. Wenzlick

Download or read book Deck Replacement with Precast Reinforced Concrete Segments written by John D. Wenzlick and published by . This book was released on 2005 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The deck to be replaced in this project was on the Nemo Bridge, built in 1960 by the U.S. Army Corps of Engineers over Pomme De Terre Lake. This 1698-ft-long steel bridge had wide flange girders with a 7-in.-thick composite reinforced concrete deck only 22 ft wide. A precast deck system, using 10-ft-long precast sections with the barrier attached, allowed overnight replacement of a least 30 ft of bridge deck per night.

Composite Action in Prestressed NU I-girder Bridge Deck Systems Constructed with Bond Breakers to Facilitate Deck Removal

Author : Chaohui Li
Publisher :
ISBN 13 :
Total Pages : 169 pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis Composite Action in Prestressed NU I-girder Bridge Deck Systems Constructed with Bond Breakers to Facilitate Deck Removal by : Chaohui Li

Download or read book Composite Action in Prestressed NU I-girder Bridge Deck Systems Constructed with Bond Breakers to Facilitate Deck Removal written by Chaohui Li and published by . This book was released on 2017 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results are reported from tests of small-scale push-off and large-scale composite NU I-girder specimens conducted to establish an interface connection detail that (1) Facilitates in-situ removal of the bridge deck without damaging prestressed girders, and (2) Maintains composite action between the prestressed girder and reinforced concrete deck throughout the service-life of the structure. Sixteen small-scale push-off tests were conducted to investigate the influence of surface preparation, bond breakers (epoxy and roofing felt), and interface reinforcement properties (yield strength, reinforcement amount, and means of anchorage) on horizontal shear transfer between precast and cast-in-place concrete surfaces. Based on the push-off test results, a connection detail was proposed that consists of roughening the top flange of the girder directly over the girder web and debonding the remainder of the interface using No. 30 ASTM D4869/D4869M-16a Type I organic roofing felt. Three full-scale composite NU35 girders, designed and fabricated using the proposed connection detail and two control connection details, were then subjected to a series of tests. First, decks were cast and then removed to quantify the extent to which the proposed connection detail reduced the effort to remove the deck and to document the types and extent of damage caused to the girders by the process. After replacing the decks, the composite girders were subjected to 2×10 (6) cycles of simulated traffic load and then loaded monotonically to failure. The proposed connection (partially roughened/partially debonded with a roofing felt bond breaker) is a viable option for use in practice; its use led to a 2/3 reduction in the effort required to remove the deck over the girder and protected the girder from all non-saw-related damage while also effectively sustaining composite action through 2×10 (6) cycles of simulated traffic load after deck replacement. The proposed connection can be conservatively designed by neglecting the debonded area when calculating interface shear strength. Other test results showed that surface preparation has a large influence on the stiffness, strength at cracking, and peak strength of a horizontal shear connection; each was greatest for specimens with a fully roughened surface followed by the partially roughened surface, troweled surface, and debonded surface. Increasing the amount of interface shear reinforcement increases the initial stiffness, shear strength at cracking, and peak and post-peak strength, and does so more effectively than a similar increase in reinforcement yield strength. Casting and removal of bridge decks without bond breakers does alter the top surface of bridge girders, but the surface can be returned to a qualitatively roughened surface with reasonable effort and care. Despite the changes to the top girder surface caused by deck removal, composite action was developed across the interface and remained stable through 2×10 (6) cycles of loading.

Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability

Author : Joan Ramon Casas
Publisher : CRC Press
ISBN 13 : 1000798739
Total Pages : 2646 pages
Book Rating : 4.0/5 (7 download)

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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.

Effect of Concrete Removal Equipment and Methods on the Condition of Deck Concrete Left in Place

Author : Michael M. Sprinkel
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (449 download)

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Book Synopsis Effect of Concrete Removal Equipment and Methods on the Condition of Deck Concrete Left in Place by : Michael M. Sprinkel

Download or read book Effect of Concrete Removal Equipment and Methods on the Condition of Deck Concrete Left in Place written by Michael M. Sprinkel and published by . This book was released on 2000 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the evaluation of the condition of concrete samples taken from sections of a five-span bridge in which the concrete in the parapet and deck along the exterior beam was removed using six different methods. Deck and parapet concrete was removed with 30-lb (14-kg) hammers, 90-lb (41-kg) hammers, a 750 ft-lb (104 m-kg) hoe ram, and a Universal Processor 50 concrete crusher. Parapet concrete was also removed with a hoe ram and a concrete crusher. A seventh test section served as an undisturbed control. Four tests of concrete samples taken adjacent to the exterior beams and approximately 4 ft (1.2 m) from the beams did not indicate that the concrete was damaged by any of the removal methods. The tests involved (1) determining the compressive strength of cores, (2) determining the tensile bond pullout strength of transverse bars in cores, (3) determining the permeability to chloride ion of cores, and (4) microscopically examining specimens to determine if the bond between the concrete and the reinforcing bar was damaged. Compared to the use of the 30-lb hammer, the use of the hoe ram and crusher to remove the deck and parapet concrete provided a reduction in time of 94 percent and a reduction in cost of 59 and 58 percent, respectively. In view of the much higher efficiency and lower cost associated with highly mechanized techniques of concrete removal, the Virginia Department of Transportation should employ the use of alternatives to the 30-lb hammer more frequently.

Bridge Maintenance, Safety, Management, Resilience and Sustainability

Author : Fabio Biondini
Publisher : CRC Press
ISBN 13 : 0203103386
Total Pages : 4119 pages
Book Rating : 4.2/5 (31 download)

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Book Synopsis Bridge Maintenance, Safety, Management, Resilience and Sustainability by : Fabio Biondini

Download or read book Bridge Maintenance, Safety, Management, Resilience and Sustainability written by Fabio Biondini and published by CRC Press. This book was released on 2012-06-21 with total page 4119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridge Maintenance, Safety, Management, Resilience and Sustainability contains the lectures and papers presented at The Sixth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2012), held in Stresa, Lake Maggiore, Italy, 8-12 July, 2012. This volume consists of a book of extended abstracts (800 pp) Extensive collection of revised expert papers on recent advances in bridge maintenance, safety, management and life-cycle performance, representing a major contribution to the knowledge base of all areas of the field.

Joint Participating Intermodal Surface Transportation Planning & Research Work Program

Author : Wisconsin. Department of Transportation
Publisher :
ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Joint Participating Intermodal Surface Transportation Planning & Research Work Program by : Wisconsin. Department of Transportation

Download or read book Joint Participating Intermodal Surface Transportation Planning & Research Work Program written by Wisconsin. Department of Transportation and published by . This book was released on 2006 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Standard Specifications for Highway and Structure Construction

Author : Wisconsin. Department of Transportation
Publisher :
ISBN 13 :
Total Pages : 730 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Standard Specifications for Highway and Structure Construction by : Wisconsin. Department of Transportation

Download or read book Standard Specifications for Highway and Structure Construction written by Wisconsin. Department of Transportation and published by . This book was released on 2011 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Selected Water Resources Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 952 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Selected Water Resources Abstracts by :

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1988 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Optimizing Concrete Deck Removal in Concrete I-girder Bridges

Author : George Morcous
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.:/5 (93 download)

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Book Synopsis Optimizing Concrete Deck Removal in Concrete I-girder Bridges by : George Morcous

Download or read book Optimizing Concrete Deck Removal in Concrete I-girder Bridges written by George Morcous and published by . This book was released on 2014 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Risk-Based Strategies for Bridge Maintenance

Author : Khaled M Mahmoud
Publisher : CRC Press
ISBN 13 : 1003828892
Total Pages : 350 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 350 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.

Life-Cycle of Engineering Systems: Emphasis on Sustainable Civil Infrastructure

Author : Jaap Bakker
Publisher : CRC Press
ISBN 13 : 1498777015
Total Pages : 438 pages
Book Rating : 4.4/5 (987 download)

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Book Synopsis Life-Cycle of Engineering Systems: Emphasis on Sustainable Civil Infrastructure by : Jaap Bakker

Download or read book Life-Cycle of Engineering Systems: Emphasis on Sustainable Civil Infrastructure written by Jaap Bakker and published by CRC Press. This book was released on 2016-11-18 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the papers presented at IALCCE2016, the fifth International Symposium on Life-Cycle Civil Engineering (IALCCE2016), to be held in Delft, The Netherlands, October 16-19, 2016. It consists of a book of extended abstracts and a DVD with full papers including the Fazlur R. Khan lecture, keynote lectures, and technical papers from all over the world. All major aspects of life-cycle engineering are addressed, with special focus on structural damage processes, life-cycle design, inspection, monitoring, assessment, maintenance and rehabilitation, life-cycle cost of structures and infrastructures, life-cycle performance of special structures, and life-cycle oriented computational tools. The aim of the editors is to provide a valuable source for anyone interested in life-cycle of civil infrastructure systems, including students, researchers and practitioners from all areas of engineering and industry.

Cost-effective Practices for Off-system and Local Interest Bridges

Author : F. W. Klaiber
Publisher : Transportation Research Board
ISBN 13 : 0309070031
Total Pages : 143 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Cost-effective Practices for Off-system and Local Interest Bridges by : F. W. Klaiber

Download or read book Cost-effective Practices for Off-system and Local Interest Bridges written by F. W. Klaiber and published by Transportation Research Board. This book was released on 2004 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 327: Cost-Effective Practices for Off-System and Local Interest Bridges examines off-system bridge design, construction, maintenance, financing, rehabilitation, and replacement. For this report, 'off-system' refers to those bridges typically owned and maintained by local agencies, and by state agencies on rural and other low-volume roads.