Evaluation Of Bridge Approach Rails

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Evaluation Of Bridge Approach Rails

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Author : Roger P. Bligh
language : en
Publisher:
Release Date : 1992

Evaluation Of Bridge Approach Rails written by Roger P. Bligh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Bridge railings categories.

A recent study on the performance of guardrail-to-bridge rail transitions revealed that many widely used designs do not meet current safety standards. As a result, the Federal Highway Administration (FHWA) requested that the Arizona Department of Transportation verify the safety performance of its standard transition designs. Three transition designs currently being used by ADOT were evaluated through a combined program of computer simulation and full-scale crash testing. The standard ADOT wood post transition, incorporating a channel rubrail and two different sizes of timber posts at a reduced post spacing near the bridge rail end, was found to be in compliance with National Cooperative Highway Research Program (NCHRP) Report 230 performance criteria. The standard ADOT steel post transition with channel rubrail was also found to be in compliance with NCHRP Report 230 requirements when impacted near the end of the bridge rail. However, the upstream end of the steel post transition required modification to eliminate deficiencies identified during testing. The modified design, which terminated the channel rubrail behind a W6x9 guardrail post, was successfully crash tested. A recent study on the performance of guardrail-to-bridge rail transitions revealed that many widely used designs do not meet current safety standards. As a result, the Federal Highway Administration (FHWA) requested that the Arizona Department of Transportation verify the safety performance of its standard transition designs. Three transition designs currently being used by ADOT were evaluated through a combined program of computer simulation and full-scale crash testing. The standard ADOT wood post transition, incorporating a channel rubrail and two different sizes of timber posts at a reduced post spacing near the bridge rail end, was found to be in compliance with National Cooperative Highway Research Program (NCHRP) Report 230 performance criteria. The standard ADOT steel post transition with channel rubrail was also found to be in compliance with NCHRP Report 230 requirements when impacted near the end of the bridge rail. However, the upstream end of the steel post transition required modification to eliminate deficiencies identified during testing. The modified design, which terminated the channel rubrail behind a W6x9 guardrail post, was successfully crash tested.

Recording And Coding Guide For The Structure Inventory And Appraisal Of The Nation S Bridges

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Author : United States. Federal Highway Administration. Bridge Division
language : en
Publisher:
Release Date : 1979

Recording And Coding Guide For The Structure Inventory And Appraisal Of The Nation S Bridges written by United States. Federal Highway Administration. Bridge Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Bridges categories.

Recording And Coding Guide For The Structure Inventory And Appraisal Of The Nation S Bridges

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Author :
language : en
Publisher:
Release Date : 1979

Recording And Coding Guide For The Structure Inventory And Appraisal Of The Nation S Bridges written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with categories.

Highway Research And Development Studies In Progress As Of July 1 1969 Using Federal Aid Research And Planning Funds

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Author :
language : en
Publisher:
Release Date : 1969

Highway Research And Development Studies In Progress As Of July 1 1969 Using Federal Aid Research And Planning Funds written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.

General Technical Report Fpl

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Author :
language : en
Publisher:
Release Date : 1978

General Technical Report Fpl written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Forest products categories.

Highway Safety Review

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Author : United States. Federal Highway Administration. Safety Review Task Force
language : en
Publisher:
Release Date : 1978

Highway Safety Review written by United States. Federal Highway Administration. Safety Review Task Force and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Traffic safety categories.

Highway Research And Development Studies Using Federal Aid Research And Planning Funds

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Author : United States. Bureau of Public Roads. Office of Research and Development
language : en
Publisher:
Release Date : 1968

Highway Research And Development Studies Using Federal Aid Research And Planning Funds written by United States. Bureau of Public Roads. Office of Research and Development and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Highway research categories.

R D Highway Safety Transportation System Studies

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Author : United States. Federal Highway Administration
language : en
Publisher:
Release Date : 1971

R D Highway Safety Transportation System Studies written by United States. Federal Highway Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Highway research categories.

National Conference On Wood Transportation Structures

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Author :
language : en
Publisher:
Release Date : 1996

National Conference On Wood Transportation Structures written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Bridges categories.

General Technical Report Forest Products Laboratory

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Author :
language : en
Publisher:
Release Date : 1978

General Technical Report Forest Products Laboratory written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Forest products categories.