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Retrofit Railings For Truss Bridges
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Book Synopsis Retrofit Railings for Truss Bridges by :
Download or read book Retrofit Railings for Truss Bridges written by and published by . This book was released on 2005 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2003, there were 38 metal truss bridges 50 years of age or older remaining on the State of Texas highway system. Of these 38 bridges, 33 are listed in the National Register of Historic Places. Many of these bridges do not meet current design criteria for rehabilitation due to narrow deck widths, low vertical clearance, and substandard load capacity. In addition, the existing bridge railing systems on these bridges have not been shown to meet the current requirements for safety and strength. This project addressed the design and performance of acceptable traffic railings for existing and new truss bridges in Texas. Specific objectives were to: * design/develop a retrofit railing for low-speed application on the Roy B. Inks Bridge in Llano, Texas; * design/develop a retrofit railing for high-speed application on the U.S. 281 Bridge over the Brazos River in Palo Pinto County, Texas; * identify criteria that can serve as a basis for design exceptions; and design/develop a traffic railing for new truss bridges.
Book Synopsis Development of Retrofit Railings for Through Truss Bridges by : M. E. Bronstad
Download or read book Development of Retrofit Railings for Through Truss Bridges written by M. E. Bronstad and published by . This book was released on 1983 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Retrofit Railings for Through Truss Bridges by : James R. Morgan
Download or read book Retrofit Railings for Through Truss Bridges written by James R. Morgan and published by . This book was released on 1986 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Truss Bridge Retrofit Railings by : Eugene Buth
Download or read book Truss Bridge Retrofit Railings written by Eugene Buth and published by . This book was released on 2004 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Guardrails for Use on Historic Bridges by : Robert Frosch
Download or read book Guardrails for Use on Historic Bridges written by Robert Frosch and published by . This book was released on 2017-06-30 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridges that are designated historic present a special challenge to bridge engineers whenever rehabilitation work or improvements are made to the bridges. Federal and state laws protect historically significant bridges, and railings on these bridges can be subject to protection because of the role they play in aesthetics. Unfortunately, original railings on historic bridges do not typically meet current crash-test requirements and typically do not meet current standards for railing height and size of permitted openings. The primary objective of this study is to develop strategies that can be used to address existing railings on historic bridges and to develop solutions that meet current design requirements. In addition to the modification, selection, and design of the bridge railing, the bridge deck is also impacted by changes made to the railing. Due to increased force levels recently required by AASHTO, deck overhangs require significantly more reinforcement than for past practice. These increases are being realized on all bridge decks and may pose particular challenges for the attachment of railing to historic bridges. Therefore, a secondary objective of this project is to investigate the design of the deck overhang and determine whether reduced amounts of reinforcement are possible. For Volume 1 (Replacement Strategies), three phases of research were conducted. First, an overview of current practice for addressing historic bridge railings was performed. Second, an investigation was conducted to document historic bridge railings in Indiana. Finally, rehabilitation solutions were developed to address the specific bridge railings found in Indiana. Based on this research, three retrofit strategies were developed which include an inboard railing, curb railing, and a simulated historic railing. These rehabilitation solutions can be used to address historic bridge railings not only in Indiana, but across the country. For Volume 2 (Bridge Deck Overhang Design), experimental testing of half-scale and full-scale overhang specimens was conducted, and the results were analyzed. Failures of in-service bridge railings were also evaluated. Based on this research, recommendations are provided for the more efficient and economic design of bridge deck overhangs. These recommendations are applicable not only for historic bridges, but for all concrete bridge decks.
Book Synopsis Retrofit Railings for Narrow Through Truss and Other Obsolete Bridge Structures by :
Download or read book Retrofit Railings for Narrow Through Truss and Other Obsolete Bridge Structures written by and published by . This book was released on 1986 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Guardrails for Use on Historic Bridges by : Robert Frosch
Download or read book Guardrails for Use on Historic Bridges written by Robert Frosch and published by . This book was released on 2017-06-30 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridges that are designated historic present a special challenge to bridge engineers whenever rehabilitation work or improvements are made to the bridges. Federal and state laws protect historically significant bridges, and railings on these bridges can be subject to protection because of the role they play in aesthetics. Unfortunately, original railings on historic bridges do not typically meet current crash-test requirements and typically do not meet current standards for railing height and size of permitted openings. The primary objective of this study is to develop strategies that can be used to address existing railings on historic bridges and to develop solutions that meet current design requirements. In addition to the modification, selection, and design of the bridge railing, the bridge deck is also impacted by changes made to the railing. Due to increased force levels recently required by AASHTO, deck overhangs require significantly more reinforcement than for past practice. These increases are being realized on all bridge decks and may pose particular challenges for the attachment of railing to historic bridges. Therefore, a secondary objective of this project is to investigate the design of the deck overhang and determine whether reduced amounts of reinforcement are possible. For Volume 1 (Replacement Strategies), three phases of research were conducted. First, an overview of current practice for addressing historic bridge railings was performed. Second, an investigation was conducted to document historic bridge railings in Indiana. Finally, rehabilitation solutions were developed to address the specific bridge railings found in Indiana. Based on this research, three retrofit strategies were developed which include an inboard railing, curb railing, and a simulated historic railing. These rehabilitation solutions can be used to address historic bridge railings not only in Indiana, but across the country. For Volume 2 (Bridge Deck Overhang Design), experimental testing of half-scale and full-scale overhang specimens was conducted, and the results were analyzed. Failures of in-service bridge railings were also evaluated. Based on this research, recommendations are provided for the more efficient and economic design of bridge deck overhangs. These recommendations are applicable not only for historic bridges, but for all concrete bridge decks.
Book Synopsis Crash Testing and Evaluation of Retrofit Bridge Railings and Transition by : Eugene Buth
Download or read book Crash Testing and Evaluation of Retrofit Bridge Railings and Transition written by Eugene Buth and published by . This book was released on 1997 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: An assortment of retrofit bridge railings and a retrofit transition were evaluated through full-scale crash testing. The assortment included: (1) a W-beam retrofit railing for a concrete baluster bridge railing (AASHTO performance level one); (2) a W-beam transition for the bridge railing above (NCHRP Report 350 test level two); (3) a double-tube pedestrian/bicycle railing mounted on the Illinois 2399-1 traffic railing (AASHTO performance level one); (4) a vandal protection fence on the New Jersey concrete safety shape bridge railing (AASHTO performance level two); and (5) a thrie beam retrofit railing, a Delaware design, mounted on a 203-mm-high safety curb (AASHTO performance level two and NCHRP Report 350 test level four). All of the designs demonstrated acceptable performance.
Download or read book Public Roads written by and published by . This book was released on 1996 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Railing Design for New Truss Bridges by : William F. Williams
Download or read book Railing Design for New Truss Bridges written by William F. Williams and published by . This book was released on 2004 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations Publisher : ISBN 13 : Total Pages :860 pages Book Rating :4.3/5 (91 download)
Book Synopsis Department of Transportation and Related Agencies Appropriations for 1980: 1980 Budget Justifications by : United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations
Download or read book Department of Transportation and Related Agencies Appropriations for 1980: 1980 Budget Justifications 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 1979 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. Senate. Committee on Appropriations. Subcommittee on Transportation and Related Agencies Publisher : ISBN 13 : Total Pages :878 pages Book Rating :4.F/5 ( download)
Book Synopsis Department of Transportation and Related Agencies Appropriations for Fiscal Year 1980 by : United States. Congress. Senate. Committee on Appropriations. Subcommittee on Transportation and Related Agencies
Download or read book Department of Transportation and Related Agencies Appropriations for Fiscal Year 1980 written by United States. Congress. Senate. Committee on Appropriations. Subcommittee on Transportation and Related Agencies and published by . This book was released on 1979 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Department of Transportation and Related Agencies Appropriations for Fiscal Year ... by :
Download or read book Department of Transportation and Related Agencies Appropriations for Fiscal Year ... written by and published by . This book was released on 1980 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design Procedures of Retrofitted Bridge Rail by : Richard Lee Wood
Download or read book Design Procedures of Retrofitted Bridge Rail written by Richard Lee Wood and published by . This book was released on 2016 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The use of shallow embedment anchors in concrete is essential for retrofit applications; however, the combination of steel anchors, chemical adhesive, and concrete acting as a single tensile mechanism creates uncertainties in anchor strength and failure modes. Difference in concrete comprehensive strengths and in specifications of adhesives between manufacturers increases uncertainty further. In addition to these issues, prior research conducted by others examines the behavior of such anchors with respect to cracked versus uncracked concrete, partial bonding of the embedded length, and strength reductions due to anchor proximity to edges. White it is understood, anchors require a proper installation detail, the goal of this research is to understand the failure mechanisms and capacity when such conditions cannot be met" (page 15).
Book Synopsis Bridge Rail Retrofit for Curved Structures: Executive summary by : Maurice E. Bronstad
Download or read book Bridge Rail Retrofit for Curved Structures: Executive summary written by Maurice E. Bronstad and published by . This book was released on 1986 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three bridge rail systems were evaluated by crash test as installed on curved, superelevated downgrade alignment. Concrete safety shape barriers mounted vertical and perpendicular to the superelevation, and a tubular thrie beam system were evaluated. Test vehicles included an 1800-lb (820-kg) class mini-compact car, a 2250-lb (1020-kg) class subcompact car, and a 20,000-lb (9070-kg) school bus. Impact conditions for all tests were 40 mph (64 km/h) and a 15-deg angle (as measured at the curve tangent).
Author :United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations Publisher : ISBN 13 : Total Pages :948 pages Book Rating :4.3/5 (91 download)
Book Synopsis Department of Transportation and Related Agencies Appropriations for 1981 by : United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations
Download or read book Department of Transportation and Related Agencies Appropriations for 1981 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 1980 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heavy Vehicle Tests of Tubular Thrie Beam Retrofit Bridge Railings by :
Download or read book Heavy Vehicle Tests of Tubular Thrie Beam Retrofit Bridge Railings written by and published by . This book was released on 1985 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: This program was directed toward further test and evaluation of a retrofit bridgerail design developed in an earlier FHWA program. In this series six tests were performed using vehicles ranging from 1840 lb (835 kg) to 40,000 lb (18,144 kg). In all tests the vehicles were successfully redirected, but some barrier modification was required to prevent vehicle rollover.
