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Guardrails For Use On Historic Bridges
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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 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 Guidelines for Historic Bridge Rehabilitation and Replacement by : Mary Elizabeth McCahon
Download or read book Guidelines for Historic Bridge Rehabilitation and Replacement written by Mary Elizabeth McCahon and published by AASHTO. This book was released on 2008 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a literature search, findings of a survey on the current state of historic bridge rehabilitation or replacement decision making by state and local transportation agencies, and nationally applicable decision-making guidelines for historic bridges. The guidelines are intended to be used as the protocol for defining when rehabilitation of historic bridges can be considered prudent and feasible and when it is not based on engineering and environmental data and judgments. The guidelines include identification of various approaches to bringing historic bridges into conformance with current design and safety guidelines/standards, and the effect or implications of remedial action on historical significance. There are currently no such nationally applicable decision-making guidelines, but there are a variety of state and local processes and policies for managing historic bridges. Effective practices for the various processes inform the nationally applicable guidelines. The guidelines are in narrative and matrix format.
Download or read book Historic Bridges written by Hojjat Adeli and published by CRC Press. This book was released on 2016-04-19 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore Historic Bridge Design through the Perspective of Modern Engineering Historic Bridges:Evaluation, Preservation, and Management provides both an admiring and a technical account of bridge engineering through an exploration of several remarkable examples. From ancient China to modern-day Minnesota, the book di
Book Synopsis Adapation of Concrete and Timber Bridge Railings for Low-volume Traffic by : Russell W. Masterson
Download or read book Adapation of Concrete and Timber Bridge Railings for Low-volume Traffic written by Russell W. Masterson and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridge railings are a safety feature to protect the traveling public by containing and redirecting errant vehicles during run-off-road (ROR) events. Most bridge railing design and evaluation efforts have focused on ROR crashes on high-volume roads. Bridge railings for low-volume roads can be designed for lower impact speeds, so railings designed for high-volume roads are unnecessarily robust for low-volume applications and can be optimized to reduce costs for bridge owners while still providing adequate safety. The aim of this research has been focused on improving the design of two low-volume bridge railing systems for use by the United States Department of Agriculture, Forest Service, Missoula Technology and Development (USDA-FS-MTDD) The first modified barrier system was originally a low-height reinforced concrete barrier designed for National Cooperative Highway Research Program Report No. 350, Test Level 2 standards (NCHRP 350 TL-2). In this research, the barrier was redesigned and optimized to meet Manual for Assessing Safety Hardware (MASH) TL-1 requirements by reducing railing dimensions and reinforcement. Additionally, construction guidance was developed for installation on concrete bridge decks of various thicknesses and overhang widths. AASHTO LRFD Bridge Design Specifications were utilized to evaluate crashworthiness and structural adequacy of the modified barrier design and the deck’s structural adequacy for lateral impact loads, vertical loads of vehicles leaning on the top of the barrier during impact events, and design traffic loads traveling adjacent to the barrier in routine service. The second bridge deck and rail system featured a transverse nail-laminated deck with a low-height timber bridge rail mounted at the edge of the deck. The original deck with railing was crashworthy, but the deck was associated with higher labor costs and more susceptible to deterioration. Further, the agency desired it be used on transverse glulam timber decks. Thus, a study was begun to adapt the railing system for use on transverse glulam decks, which would also increase the durability and likely lower the onsite construction time and labor cost of the deck system. Component tests were performed on the original and modified deck systems to confirm the acceptable performance of the modified system. From the component testing results, the glulam rail and scupper blocks installed on a transverse glulam deck resisted more lateral force, absorbed more energy, and had higher initial linear stiffness as compared to the same rail and scupper blocks installed on a transverse nail-laminated deck. Thus, the low-height, glulam timber bridge railing installed on a transverse, glulam deck will provide equal or greater safety performance as compared to the same bridge rail installed on a transverse, nail-laminated deck. As a result, the low-height, glulam timber bridge rail installed on a transverse glulam deck has also been deemed adequate for use in MASH TL-1 applications.
Book Synopsis Testing of new bridge rail and transition designs: Appendix I: 42-in (1.07-m) concrete parapet bridge railing by : Eugene Buth
Download or read book Testing of new bridge rail and transition designs: Appendix I: 42-in (1.07-m) concrete parapet bridge railing written by Eugene Buth and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this study were to develop safer bridge rail and transition designs and to improve design guidelines. Ten bridge railings and two transitions were designed, tested, and evaluated in accordance with American Association of State Highway and Transportation Officials (AASHTO) requirements. The railings were designed using ultimate strength procedures and collision forces from earlier research. Design procedures, railing designs, and test results are presented. All designs demonstrated acceptable collision performance.
Book Synopsis Use of Guardrails on Low Fill Bridge Length Culverts by : Teddy James Hirsch
Download or read book Use of Guardrails on Low Fill Bridge Length Culverts written by Teddy James Hirsch and published by . This book was released on 1987 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bridge Railings by : American Institute of Steel Construction
Download or read book Bridge Railings written by American Institute of Steel Construction and published by . This book was released on 1941 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Identifying and Preserving Historic Bridges by : Merv Eriksson
Download or read book Identifying and Preserving Historic Bridges written by Merv Eriksson and published by . This book was released on 2000 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Association of State Highway and Transportation Officials. Task Force for Roadside Safety Publisher : ISBN 13 : Total Pages :560 pages Book Rating :4.0/5 ( download)
Book Synopsis Roadside Design Guide by : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety
Download or read book Roadside Design Guide written by American Association of State Highway and Transportation Officials. Task Force for Roadside Safety and published by . This book was released on 1989 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Guide for the Planning, Design, and Operation of Pedestrian Facilities by :
Download or read book Guide for the Planning, Design, and Operation of Pedestrian Facilities written by and published by AASHTO. This book was released on 2004 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Guard Rails and Deck Construction for Railway Bridges by :
Download or read book Guard Rails and Deck Construction for Railway Bridges written by and published by . This book was released on 1909 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Historic Highway Bridge Preservation Practices by : William P. Chamberlin
Download or read book Historic Highway Bridge Preservation Practices written by William P. Chamberlin and published by Transportation Research Board. This book was released on 1999 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This synthesis report will be of interest to state highway design engineers and structural engineers, as well as environmental and historic preservation personnel in transportation agencies. It will also be of interest to state historic preservation offices, federal historic preservation agencies, ang engineering preservation consultants"--Avant-propos.
Book Synopsis Evaluation and Rehabilitation of Historic Metal Truss Bridges by : Matthew Haberling
Download or read book Evaluation and Rehabilitation of Historic Metal Truss Bridges written by Matthew Haberling and published by . This book was released on 2004 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bridge Rail and Approach Railing for Low-volume Roads in Iowa by : Jake J. Bigelow
Download or read book Bridge Rail and Approach Railing for Low-volume Roads in Iowa written by Jake J. Bigelow and published by . This book was released on 2010 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guidelines for bridge rail and approach guardrails can help improve the safety benefits of these devices while minimzing [i.e., minimizing] costs.
Download or read book Footbridges written by Ursula Baus and published by Walter de Gruyter. This book was released on 2007-11-05 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence on the interplay of technical progress, imagination and functional variety in footbridges are different from those affecting large-scale bridges. This fact has resulted in an exhaustible variety of distinctive design, as is beautifully illustrated by the selection of footbridges shown in this book. Essays clearly explain the technical aspects and the aesthetic potential of different structure designs. Footbridges contains detailed presentations of 90 european bridges, with text, comprehensive and detail plans, and photographs taken especially for the volume. With projects by Arup, Jürg Conzett, Foster and Partners, Happold, Schlaich Bergermann and Partners, Wilkinson Eyre, Jiri Strasky and others. The examples are organized chronologically in thematically focused chapters: lightweight bridges, moving bridges, covered bridges, taut-ribbon suspension bridges, arch bridges, etc. For those whose curiosity is aroused by the insight given into this type of bridge building, a compilation of 120 more footbridges, listed by location, provide a starting point for further investigation. Ursula Baus is an independent architecture critic and the author of numerous books and technical articles. She teaches at Stuttgart University. Mike Schlaich is a professor of massive construction at the Technische Universität (Technical University) in Berlin and a partner of the firm Schlaich Bergermann and Partners. Wilfried Dechau is a photographer – he lives and works in Stuttgart and specializes in architecture, bridges, and portraits.
Book Synopsis Timber Bridges by : Michael A. Ritter
Download or read book Timber Bridges written by Michael A. Ritter and published by Datamotion Publishing LLC. This book was released on 1990 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a comprehensive analysis of the design, construction, inspection, and maintenance of timber bridges.
