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Author :
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (731 download)
Download or read book Field-cast UHPC connections for modular bridge deck elements written by and published by . This book was released on 2010 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Benjamin A. Graybeal
Publisher :
ISBN 13 :
Total Pages : 106 pages
Book Rating : 4.:/5 (694 download)
Download or read book Behavior of Field-cast Ultra-high Performance Concrete Bridge Deck Connections Under Cyclic and Static Structural Loading written by Benjamin A. Graybeal and published by . This book was released on 2010 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The use of modular bridge deck components has the potential to produce higher quality, more durable bridge decks; however, the required connections have often proved lacking, resulting in less than desirable overall system performance. Advanced cementitious composite materials whose mechanical and durability properties far exceed those of conventional concretes present an opportunity to significantly enhance the performance of field-cast connections thus facilitating the wider use of modular bridge deck systems. Ultra-high performance concrete (UHPC) represents a class of such advanced cementitious composite materials. Of particular interest here, UHPCs can exhibit both exceptional bond when cast against previously cast concrete and can significantly shorten the development length of embedded discrete steel reinforcement. These properties allow for a redesign of the modular component connection, facilitating simplified construction and enhanced long-term system performance. This study investigated the structural performance of field-cast UHPC connections for modular bridge deck components. The transverse and longitudinal connection specimens simulated the connections between precast deck panels and the connections between the top flanges of deck-bulb-tee girders, respectively. Testing included both cyclic and static loadings. The results demonstrated that the field-cast UHPC connection facilitates the construction of an emulative bridge deck system whose behaviors should meet or exceed those of a conventional cast-in-place bridge deck"--Technical report documentation page.
Author : Benjamin A. Graybeal
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (14 download)
Download or read book Fatigue Response in Bridge Deck Connection Composed of Field-Cast Ultra-High-Performance Concrete written by Benjamin A. Graybeal and published by . This book was released on 2011 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of prefabricated concrete bridge deck components can offer many advantages over conventional cast-in-place construction techniques. However, completing the overall bridge system requires the installation of connecting elements. The state of the practice for these connecting elements has been deficient in resilience, durability, and ease of construction. An ongoing research effort at FHWA, in conjunction with partners from the New York State and Iowa Departments of Transportation, is focused on engaging the advantageous properties of ultra-high-performance concrete (UHPC) to develop a new type of detail applicable to deck-level connections between prefabricated modular bridge components. This physical testing program investigated the structural performance of a field-cast UHPC connection under repeated truck wheel loading. The connection—150 mm (5.9 in.) thick and 152 mm (6 in.) wide—was designed as a noncontact lap splice with straight 16M (No. 5) steel reinforcement. After more than 11 million structural-loading cycles at progressively increasing load levels, individual bars within the connection began to fail in metal fatigue. The stress range in the reinforcement at initial fatigue failure was conservatively estimated at 197 MPa (28.6 ksi). No debonding or slippage of reinforcement was observed. The performance of this connection detail demonstrated the types of details that can be developed and deployed with field-cast UHPC.
Author : George C. Lee
Publisher :
ISBN 13 :
Total Pages : 221 pages
Book Rating : 4.:/5 (93 download)
Download or read book Seismic Performance Evaluation of Precast Girders with Field-cast Ultra High Performance Concrete (UHPC) Connections written by George C. Lee and published by . This book was released on 2014 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Ultra-high performance concrete (UHPC) is an advanced cementitious composite material which provides new opportunities to significantly enhance the performance of field-cast connections. The use of UHPC in precast concrete bridge superstructure components can offer many advantages compared to conventional cast-in-place decks, especially higher quality and durability as well as ease of construction. However, the appropriate installation of connecting elements is a key challenge in completing the overall bridge system. It is recognized that the state of the practice with regard to deck-level connecting elements has been lacking in terms of resiliency and durability. The Federal Highway Administration's ongoing research program into the use of Ultra-High Performance Concrete (UHPC) in highway bridges has recently focused on deck-level connections between modular precast components. Field-cast UHPC connections can facilitate the construction of an emulative bridge deck system whose behaviors should meet or exceed those of a conventional cast-inplace bridge deck. However, many bridge owners may be hesitant to embrace UHPC bridge deck component technology due to a lack of knowledge of the seismic performance of field-cast UHPC connections. The seismic responses of connections under severe earthquakes need to be investigated to facilitate the wider use of these modular bridge deck systems, especially in high seismic zones. The major objective of this study is to evaluate the seismic performance of two precast deck-bulb-tee girders with field-cast UHPC connections. A series of shake table tests are performed to analyze the seismic behavior of the girders and UHPC connections"--Page v.
Author :
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (922 download)
Download or read book Design and Construction of Field-cast UHPC Connections written by and published by . This book was released on 2010 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 312 pages
Book Rating : 4.3/5 (555 download)
Download or read book Public Roads written by and published by . This book was released on 2011 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Khaled Mahmoud
Publisher : CRC Press
ISBN 13 : 0415684153
Total Pages : 338 pages
Book Rating : 4.4/5 (156 download)
Download or read book Modern Techniques in Bridge Engineering written by Khaled Mahmoud and published by CRC Press. This book was released on 2011-08-26 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to significant economic growth in the last few decades, increasing traffic loads impose tremendous demand on bridge structures. This, coupled with ongoing deterioration of bridges, introduces a unique challenge to bridge engineers in maintaining service of these infrastructure assets without disruption to vital economic and social activities. This requires innovative solutions and optimized methodologies to achieve safe and efficient operation of bridge structures. Bridge engineering practitioners, researchers, owners, and contractors from all over the world presented on modern techniques in design, inspection, monitoring and rehabilitation of bridge structures, at the Sixth New York City Bridge Conference held New York City on July 25-26, 2011. This book contains a select number of papers presented at the conference. This group of papers provides a state-of-the-art in bridge engineering and is of interest to any reader in the field.
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ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.3/5 (555 download)
Download or read book Focus written by and published by . This book was released on 2010 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Insert Name Here
Publisher : kassel university press GmbH
ISBN 13 : 3862192644
Total Pages : 1059 pages
Book Rating : 4.8/5 (621 download)
Download or read book Ultra-High Performance Concrete and Nanotechnology in Construction. Proceedings of Hipermat 2012. 3rd International Symposium on UHPC and Nanotechnology for High Performance Construction Materials written by Insert Name Here and published by kassel university press GmbH. This book was released on 2012-01-01 with total page 1059 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.3/5 (555 download)
Download or read book Telling the R&T Story written by and published by . This book was released on 2011 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Matthew K. Swenty
Publisher :
ISBN 13 :
Total Pages : 82 pages
Book Rating : 4.:/5 (811 download)
Download or read book Influence of Differential Deflection on Staged Construction Deck-level Connections written by Matthew K. Swenty and published by . This book was released on 2012 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Many rapid construction methods have been investigated and implement using modular bridge deck components; however, the loadings a bridge might experience during staged construction could force a concentration of differential deflections within the connection and thus reduce the connection's service capacity, ultimate capacity, and durability. The research presented herein focused on the effects of differential deflections across a connection on the bond strength between reinforcing bars and field-cast connections in bridge deck-level connections. Six inch cube pull-out type specimens with number four bars were cast. Differential deflections were imparted from casting until final set that ranged from 0.1 in. (0.254 cm) to 0.005 in. (0.0127 cm) of linear bar movement perpendicular to the bar axis. A range of different grout materials which might be deployed in these field-cast connections were engaged in this research program, including standard conventional grouts, deck concretes, ultra-high performance concretes (UHPC), epoxy grout, magnesium phosphate grout, and cable grout. The results of this research provide an initial assessment of whether differential deflections across field-cast connections may be of concern. From the perspective of the pure bond strength, deflecting the rebar prior to final set of the embedment material can have a detrimental effect on the bond. When the rebar deflected 0.05 in. (1.27 mm) or more, reduced bond capacity was observed. When the rebar deflected 0.01 in. (0.25 mm) or less, the results indicate only minor variations in bond strength."--Technical report documentation p.
Author : U.s. Department of Transportation
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723492891
Total Pages : 36 pages
Book Rating : 4.4/5 (928 download)
Download or read book Design and Construction of Field-cast Uhpc Connections written by U.s. Department of Transportation and published by Createspace Independent Publishing Platform. This book was released on 2018-07-25 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design and construction of field-cast UHPC connections.
Author : Mohiuddin Ali Khan
Publisher : Elsevier
ISBN 13 : 0124072259
Total Pages : 651 pages
Book Rating : 4.1/5 (24 download)
Download or read book Accelerated Bridge Construction written by Mohiuddin Ali Khan and published by Elsevier. This book was released on 2014-08-12 with total page 651 pages. Available in PDF, EPUB and Kindle. Book excerpt: The traveling public has no patience for prolonged, high cost construction projects. This puts highway construction contractors under intense pressure to minimize traffic disruptions and construction cost. Actively promoted by the Federal Highway Administration, there are hundreds of accelerated bridge construction (ABC) construction programs in the United States, Europe and Japan. Accelerated Bridge Construction: Best Practices and Techniques provides a wide range of construction techniques, processes and technologies designed to maximize bridge construction or reconstruction operations while minimizing project delays and community disruption. Describes design methods for accelerated bridge substructure construction; reducing foundation construction time and methods by using pile bents Explains applications to steel bridges, temporary bridges in place of detours using quick erection and demolition Covers design-build systems' boon to ABC; development of software; use of fiber reinforced polymer (FRP) Includes applications to glulam and sawn lumber bridges, precast concrete bridges, precast joints details; use of lightweight aggregate concrete, aluminum and high-performance steel
Author :
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (1 download)
Download or read book Summary of Cast-in-place Concrete Connections for Precast Deck Systems written by and published by . This book was released on 2011 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jacques Resplendino
Publisher : John Wiley & Sons
ISBN 13 : 1118587553
Total Pages : 678 pages
Book Rating : 4.1/5 (185 download)
Download or read book Designing and Building with UHPFRC written by Jacques Resplendino and published by John Wiley & Sons. This book was released on 2013-01-29 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the proceedings of the international workshop “Designing and Building with Ultra-High Performance Fibre-Reinforced Concrete (UHPFRC): State of the Art and Development”, organized by AFGC, the French Association for Civil Engineering and French branch of fib, in Marseille (France), November 17-18, 2009. This workshop was focused on the experience of a lot of recent UHPFRC realizations. Through more than 50 papers, this book details the experience of many countries in UHPFRC construction and design, including projects from Japan, Germany, Australia, Austria, USA, Denmark, the Netherlands, Canada... and France. The projects are categorized as novel architectural solutions, new frontiers for bridges, new equipments and structural components, and extending the service life of structures. The last part presents major research results, durability and sustainability aspects, and the updated AFGC Recommendations on UHPFRC.
Author : HNTB Corporation, Genesis Structures Inc, Structural Engineering Associates, and Iowa State University
Publisher : Transportation Research Board
ISBN 13 : 0309274109
Total Pages : 976 pages
Book Rating : 4.3/5 (92 download)
Download or read book Innovative Bridge Designs for Rapid Renewal written by HNTB Corporation, Genesis Structures Inc, Structural Engineering Associates, and Iowa State University and published by Transportation Research Board. This book was released on with total page 976 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, documents the development of standardized approaches to designing and constructing complete bridge systems for rapid renewals.
Download or read book Connections for Modular Precast Concrete Bridge Decks written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
