Durability and Fatigue Behavior of CIP Concrete Connections for Accelerated Bridge Construction

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Publisher :
ISBN 13 :
Total Pages : 123 pages
Book Rating : 4.:/5 (72 download)

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Book Synopsis Durability and Fatigue Behavior of CIP Concrete Connections for Accelerated Bridge Construction by : Peng Zhu

Download or read book Durability and Fatigue Behavior of CIP Concrete Connections for Accelerated Bridge Construction written by Peng Zhu and published by . This book was released on 2010 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuous longitudinal and transverse U-bar joint connections between flanges of the decked bulb-Ts (DBTs) or between precast panels for accelerated bridge construction are investigated. The procedure for selecting durable closure pour (CP) materials for the connections is discussed firstly. The accelerated construction is quantified as two categories: overnight cure and 7-day cure of CP materials. Candidate materials are selected first based on literature review as well as tests of compressive strength and flow and workability. Then, performance criteria for selecting durable CP materials for both categories are developed based on durability tests of selected candidate materials. These durability tests include freezing-and-thawing durability, shrinkage, bond, and permeability tests. To investigate the longitudinal U-bar joint details, four pairs of full-scale slabs connected by a U-bar detail with one of the selected CP materials, overnight cure and 7-day cure, were tested. The loading demand necessary in the slab testing is determined based on the maximum forces in the longitudinal joint from an analytical parametric study. Static and fatigue tests under four-point flexural loading and three-point flexural-shear loading were conducted. Test results were evaluated based on flexural capacity, curvature behavior, cracking, deflection and steel strain. The transverse U-bar joint details are investigated to provide negative moment continuity in the multi-span bridges. Four full-scale specimens connected by a U-bar detail with one of the selected CP materials, overnight cure and 7-day cure, were tested. Static and fatigue tests under tension loading were conducted. The loading demand necessary in the beam testing is determined based on the maximum forces in the transverse joint from an analytical study. Test results were evaluated based on tension capacity, cracking, displacement and steel strain. Based on the test results, the developed longitudinal and transverse U-bar joint details are viable connection systems.

Application of Accelerated Bridge Construction Connections in Moderate-to-High Seismic Regions

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Publisher : Transportation Research Board
ISBN 13 : 0309213436
Total Pages : 65 pages
Book Rating : 4.3/5 (92 download)

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Book Synopsis Application of Accelerated Bridge Construction Connections in Moderate-to-High Seismic Regions by :

Download or read book Application of Accelerated Bridge Construction Connections in Moderate-to-High Seismic Regions written by and published by Transportation Research Board. This book was released on 2011 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB’s National Cooperative Highway Research Program (NCHRP) Report 698: Application of Accelerated Bridge Construction Connections in Moderate-to-High Seismic Regions evaluates the performance of connection details for bridge members in accelerated bridge construction in medium-to-high seismic regions and offers suggestions for further research.

Behavior of Prestressed Concrete Bridges with Closure Pour Connections and Diaphragms

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)

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Book Synopsis Behavior of Prestressed Concrete Bridges with Closure Pour Connections and Diaphragms by : Gercelino Ramos

Download or read book Behavior of Prestressed Concrete Bridges with Closure Pour Connections and Diaphragms written by Gercelino Ramos and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Accelerated Bridge Construction (ABC) has gained substantial popularity in new bridge construction and bridge deck replacement because it offers innovative construction techniques that result in time and cost savings when compared to traditional bridge construction practice. One technology commonly implemented in ABC to effectively execute its projects is the use of prefabricated bridge components (precast/prestressed bridge components). Precast/prestressed bridge components are fabricated offsite or near the site and then connected on-site using small volume closure pour connections. Diaphragms are also commonly used to strengthen the connection between certain prefabricated components used in ABC, such as beam elements. Bridges containing closure pour connections and diaphragms can be designed using AASHTO LRFD live-load distribution factor formulas under the condition that the bridge must be sufficiently connected. However, these formulas were developed using analytical models that did not account for the effects of closure pours and diaphragms on live-load distribution. This research study investigates live-load distribution characteristics of precast/prestressed concrete bridges with closure pour connections and diaphragms. The investigation was conducted using finite element bridge models with closure pour joints that were calibrated using experimental data and different configuration of diaphragms. The concrete material used for the closure pour connections was developed as part of a larger project intended to develop high early-strength concrete mixtures that specifically reach strength in only 12 hours, a critical requirement for ABC projects.

Fatigue Behavior of Joints in Precast Prestressed Concrete Double Tee Bridge System

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Publisher :
ISBN 13 :
Total Pages : 308 pages
Book Rating : 4.:/5 (169 download)

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Book Synopsis Fatigue Behavior of Joints in Precast Prestressed Concrete Double Tee Bridge System by : Venkateswara B. Rao

Download or read book Fatigue Behavior of Joints in Precast Prestressed Concrete Double Tee Bridge System written by Venkateswara B. Rao and published by . This book was released on 1986 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Application of Ultra-High Performance Concrete in Prefabricated Bridge Element Connections for Accelerated Bridge Construction

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Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (139 download)

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Book Synopsis Application of Ultra-High Performance Concrete in Prefabricated Bridge Element Connections for Accelerated Bridge Construction by : Daniel Bridi Valentim

Download or read book Application of Ultra-High Performance Concrete in Prefabricated Bridge Element Connections for Accelerated Bridge Construction written by Daniel Bridi Valentim and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A relatively new type of beam falling under the accelerated bridge construction (ABC) umbrella, the Northeast Extreme Tee (NEXT) D beam, was designed by the PCI Northeast Bridge Technical Committee, with connection details that substitute traditional welded ties joining butted-beam systems, such as bulb-tee girders and double-tee beams. Grout has traditionally been used in joints between prefabricated bridge elements and systems (PBES). This material, however, has resulted in issues with shear key cracking reported by the Federal Highway Administration. An alternative cementitious material, ultra-high performance concrete (UHPC), has been used as a great solution for connections between PBES in ABC. This material exhibits superior properties such as compressive, tensile, and bond strength, durability, and long-term stability when compared to conventional connection materials. Three main studies are presented herein. The first study presents a tensile strength evaluation of 54 UHPC specimens by comparing the direct tension (DT), four-point bending, and double-edge wedge-splitting (DEWS) test methods. No statistically significant difference was found between the peak tensile strengths obtained from DT and DEWS specimens. DEWS specimens are tested using a compression-testing machine, and can be cored and finished from existing UHPC members. The second study evaluates the bond-slip behavior of UHPC and untensioned prestressing strands. The variables studied in the 54 tested pull-out specimens include clear cover, embedment length, and strand diameter (dPT). It was observed that specimens that experienced strand failure had an embedment length of at least 24×dPT or clear cover distance of 2.17×dPT. The third study investigates the behavior of NEXT D beams under fatigue loading. Four double-tee and four slab specimens were subjected to 1 million cycles under AASHTO standard wheel truck loads. Moreover, finite element analyses (FEAs) were performed, effectively simulating the tested specimens, and a 60-ft. long bridge model was created to simulate a constructed bridge in Mobile County, Alabama. It was observed that an 8-in. (203-mm) wide UHPC joint with a single reinforcement layer containing straight #5 bars, an 8-in. (203-mm) embedment length, and spaced every 6 in. (152 mm) had satisfactory performance according to results from experimental testing and FEAs.

Development of High Early-strength Concrete for Accelerated Bridge Construction Closure Pour Connections

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Development of High Early-strength Concrete for Accelerated Bridge Construction Closure Pour Connections by : Stephanie Castine

Download or read book Development of High Early-strength Concrete for Accelerated Bridge Construction Closure Pour Connections written by Stephanie Castine and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Accelerated bridge construction (ABC) has become a popular alternative to using traditional construction techniques in new bridge construction and existing bridge deck replacement because of the reduction of time spent in field activities. A key feature of bridges built using ABC techniques is the extensive use of prefabricated components. Prefabricated components are joined in the field using small volume closure pours involving high performance materials (steel and concrete) to ensure adequate transfer of forces between components. To date, the materials developed for closure pours have been based on proprietary components, so a need has arisen for development of mixes that use generic components. The goal of this research was to create a method to develop concrete mixtures that are designed using generic constituents and that satisfy performance requirements of accelerated bridge construction closure pours in New England, primarily high early strength and long-term durability. Two concrete mixtures were developed with a primary goal of reaching high-early strength while maintaining constructability. The secondary goal of the concrete mixtures was to be durable; therefore, measures were taken during the development of the concrete mixture to generate a mixture that also had durable properties.

Laboratory Testing of Precast Bridge Beck Panel Transverse Connections for Use in Accelerated Bridge Construction

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (9 download)

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Book Synopsis Laboratory Testing of Precast Bridge Beck Panel Transverse Connections for Use in Accelerated Bridge Construction by : Scott D. Porter

Download or read book Laboratory Testing of Precast Bridge Beck Panel Transverse Connections for Use in Accelerated Bridge Construction written by Scott D. Porter and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Precast concrete bridge deck panels have been used for decades to accelerate bridge construction. Cracking of the transverse connection between panels is a common problem that can damage deck overlays and cause connection leaking leading to corrosion of lower bridge elements. To better understand the behavior of bridge deck transverse female-to-female connections, shear and moment lab testing were performed at Utah State University for the Utah Department of Transportation. Two existing UDOT connections were tested, a welded stud connection and a post tensioned connection. A variation of the welded connection using rebar was also tested. In addition, two new curved bolt connections were tested as a new method of post tensioning a connection. The manner of connection cracking and associated cracking loads were recorded along with the ultimate connection capacities. The connections were also tested in a low cycle, high amplitude cyclical shear test. Lab testing showed that the welded stud connection had the lowest moment capacity. It also showed that the welded rebar connection had significantly higher strength than the welded stud connection with higher cracking and ultimate loads. Curved bolts were also shown to be a good way to post tension a connection with similar moment capacities as the post tensioned connection. Longer curved bolts were found to perform better than shorter curved bolts.

Exploring Fiber-reinforced Polymer Concrete for Accelerated Bridge Construction Applications

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Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)

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Book Synopsis Exploring Fiber-reinforced Polymer Concrete for Accelerated Bridge Construction Applications by : Carolyn Donohoe

Download or read book Exploring Fiber-reinforced Polymer Concrete for Accelerated Bridge Construction Applications written by Carolyn Donohoe and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of prefabricated superstructure elements in bridge construction reduces on-site construction time, improves work-zone safety, and can reduce overall project costs. For prefabricated elements to be used efficiently for accelerated bridge construction (ABC), the precast components, such as deck panels or decked-bulb tees, must be connected quickly on-site, ideally using as little additional material as possible. The use of fiber-reinforced polymer concrete (FRPC) was explored as a closure pour material for bridges to connect adjacent precast superstructure elements. Polymer concretes have been used successfully as a non-structural overlay material in transportation systems for many decades. With the addition of fibers, FRPC displays levels of two critical characteristics, bond and tension strength, that are comparable to other alternatives, such as ultra-high performance concrete (UHPC). While UHPC may still provide the best solution in many instances, FRPC has the advantage of requiring shorter closure windows (approximately 4 hours versus 72 hours for UHPC) due to the very rapid strength gain of the polymer, which could be ideal for overnight construction or rehabilitation projects. The bond and mechanical properties of FRPC were determined at several temperatures, spanning the range of typical service conditions in western Washington State. Tests were completed measuring the compressive, flexural, and bond strength of FRPC. Then, a central composite rotatable experimental design was utilized to explore the impact of splice length, side cover, bar size, and temperature on bar stress in non-contact splice specimens. The test setup was similar to that completed by the Federal Highway Administration (FHWA) with UHPC. The results of the testing program indicate that FRPC exhibits significant variation in mechanical properties with temperature, roughly -0.6 %/°F; the development of early compressive, flexure, and bond strengths were very similar, reaching roughly 70% of their 7-day values in 4 hours; and peak bar stresses in non-contact lap splices embedded in FRPC were comparable to UHPC for the embedded lengths tested. Based on the testing results, example joint configurations for connecting precast superstructure elements were developed, enabling the comparison of FRPC with alternative closure pour materials for future ABC projects.

Fatigue Response in Bridge Deck Connection Composed of Field-Cast Ultra-High-Performance Concrete

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Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (14 download)

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Book Synopsis Fatigue Response in Bridge Deck Connection Composed of Field-Cast Ultra-High-Performance Concrete by : Benjamin A. Graybeal

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.

Behavior of Field-cast Ultra-high Performance Concrete Bridge Deck Connections Under Cyclic and Static Structural Loading

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Publisher :
ISBN 13 :
Total Pages : 106 pages
Book Rating : 4.:/5 (694 download)

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Book Synopsis Behavior of Field-cast Ultra-high Performance Concrete Bridge Deck Connections Under Cyclic and Static Structural Loading by : Benjamin A. Graybeal

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.

Accelerated Bridge Construction

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Publisher : Elsevier
ISBN 13 : 0124072259
Total Pages : 651 pages
Book Rating : 4.1/5 (24 download)

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Book Synopsis Accelerated Bridge Construction by : Mohiuddin Ali Khan

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

LRFD Guide Specifications for the Design of Pedestrian Bridges

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Publisher : AASHTO
ISBN 13 : 1560514698
Total Pages : 38 pages
Book Rating : 4.5/5 (65 download)

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Book Synopsis LRFD Guide Specifications for the Design of Pedestrian Bridges by : American Association of State Highway and Transportation Officials

Download or read book LRFD Guide Specifications for the Design of Pedestrian Bridges written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2009 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Bridge Engineering Handbook

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Publisher : CRC Press
ISBN 13 : 1000005925
Total Pages : 690 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Bridge Engineering Handbook by : Wai-Fah Chen

Download or read book Bridge Engineering Handbook written by Wai-Fah Chen and published by CRC Press. This book was released on 2019-09-11 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 1999: The Bridge Engineering Handbook is a unique, comprehensive, and state-of-the-art reference work and resource book covering the major areas of bridge engineering with the theme "bridge to the 21st century."

Ultra High Performance Concrete

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Publisher : kassel university press GmbH
ISBN 13 : 3899583760
Total Pages : 922 pages
Book Rating : 4.8/5 (995 download)

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Book Synopsis Ultra High Performance Concrete by : Ekkehard Fehling

Download or read book Ultra High Performance Concrete written by Ekkehard Fehling and published by kassel university press GmbH. This book was released on 2008-01-01 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Design of Highway Bridges

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Publisher : John Wiley & Sons
ISBN 13 : 1118330102
Total Pages : 1194 pages
Book Rating : 4.1/5 (183 download)

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Book Synopsis Design of Highway Bridges by : Richard M. Barker

Download or read book Design of Highway Bridges written by Richard M. Barker and published by John Wiley & Sons. This book was released on 2013-02-04 with total page 1194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up-to-date coverage of bridge design and analysis revised to reflect the fifth edition of the AASHTO LRFD specifications Design of Highway Bridges, Third Edition offers detailed coverage of engineering basics for the design of short- and medium-span bridges. Revised to conform with the latest fifth edition of the American Association of State Highway and Transportation Officials (AASHTO) LRFD Bridge Design Specifications, it is an excellent engineering resource for both professionals and students. This updated edition has been reorganized throughout, spreading the material into twenty shorter, more focused chapters that make information even easier to find and navigate. It also features: Expanded coverage of computer modeling, calibration of service limit states, rigid method system analysis, and concrete shear Information on key bridge types, selection principles, and aesthetic issues Dozens of worked problems that allow techniques to be applied to real-world problems and design specifications A new color insert of bridge photographs, including examples of historical and aesthetic significance New coverage of the "green" aspects of recycled steel Selected references for further study From gaining a quick familiarity with the AASHTO LRFD specifications to seeking broader guidance on highway bridge design Design of Highway Bridges is the one-stop, ready reference that puts information at your fingertips, while also serving as an excellent study guide and reference for the U.S. Professional Engineering Examination.

Pile Design and Construction Practice

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Publisher : CRC Press
ISBN 13 : 0203964292
Total Pages : 566 pages
Book Rating : 4.2/5 (39 download)

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Book Synopsis Pile Design and Construction Practice by : Willis H. Thomas

Download or read book Pile Design and Construction Practice written by Willis H. Thomas and published by CRC Press. This book was released on 2007-12-06 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: This international handbook is essential for geotechnical engineers and engineering geologists responsible for designing and constructing piled foundations. It explains general principles and practice and details current types of pile, piling equipment and methods. It includes calculations of the resistance of piles to compressive loads, pile group

Post-tensioning Manual

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Publisher :
ISBN 13 : 9781931085588
Total Pages : 0 pages
Book Rating : 4.0/5 (855 download)

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Book Synopsis Post-tensioning Manual by : Post-Tensioning Institute

Download or read book Post-tensioning Manual written by Post-Tensioning Institute and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: