Development Of A Steel H Section Temporary Barrier For Use In Limited Deflection Applications
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Development Of A Steel H Section Temporary Barrier For Use In Limited Deflection Applications
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Author : Karla A. Polivka
language : en
Publisher:
Release Date : 2003
Development Of A Steel H Section Temporary Barrier For Use In Limited Deflection Applications written by Karla A. Polivka and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Roads categories.
A tie-down system was developed for use with Iowa's steel H-section temporary barrier. For this system, the original barrier connection detail was modified in order to simplify barrier attachment to one another as well as to more easily accommodate deviations in horizontal and vertical alignment. At each barrier joint, two steel shear plates were positioned within an opening on the adjacent barrier section and held in place with two steel drop pins. Four steel angle brackets were welded to the barrier's base at every joint in order to allow for the barriers to be rigidly attached to the concrete bridge deck using drop-in anchors. Two full-scale vehicle crash tests, using 3/4-ton pickup trucks, were performed on the steel H-section barrier system.
What S Up Doc
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Author :
language : en
Publisher:
Release Date : 2002
What S Up Doc written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Government publications categories.
Highways
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Author :
language : en
Publisher:
Release Date : 2003
Highways written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Highway engineering categories.
Traffic Engineering Control
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Author :
language : en
Publisher:
Release Date : 1985
Traffic Engineering Control written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Traffic control categories.
Sci Tech Book Profiles
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Author :
language : en
Publisher:
Release Date : 1965
Sci Tech Book Profiles written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Science categories.
Includes title page, table of contents, list of contributors, preface and all indexes of each book.
Engineering News Record
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Author :
language : en
Publisher:
Release Date : 1954
Engineering News Record written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1954 with Engineering categories.
Scientific American
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Author :
language : en
Publisher:
Release Date : 1901
Scientific American written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1901 with Science categories.
Development Of A Retrofit Low Deflection Temporary Concrete Barrier System
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Author : Robert W. Bielenberg
language : en
Publisher:
Release Date : 2014
Development Of A Retrofit Low Deflection Temporary Concrete Barrier System written by Robert W. Bielenberg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Roads categories.
Deflection Limits For Temporary Concrete Barriers
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Author : Dean Sicking
language : en
Publisher:
Release Date : 2002
Deflection Limits For Temporary Concrete Barriers written by Dean Sicking and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Road work zones categories.
Whenever a traffic control plan is developed that utilizes temporary barriers, it is important to define acceptable barrier deflection criteria. However, the acceptable deflection criteria can be expected to vary, depending on the application. When temporary concrete barriers are used on the edge of a bridge, the risk of the entire line of barriers falling off of the deck required that deflection limits be selected to preclude such behavior in almost all impact scenarios. Hence, it is recommended that at the edge of a bridge deck, design deflection limits should be selected to contain more than 95% of all crashes. In all other barrier applications, the consequences of a barrier exceeding the design deflection criteria are not severe. In these situations, a more modest deflection limit criterion based on an 85th percentile impact condition is more appropriate. Computer simulation was used to estimate the deflection of barriers impacted under the 85th percentile impact conditions. Finally, recommendations were made pertaining to the two different design deflection limits that should be used for the Iowa temporary concrete barrier.
Development Of A Temporary Barrier System For Off Road Applications
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Author : Kenneth H. Addink
language : en
Publisher:
Release Date : 1998
Development Of A Temporary Barrier System For Off Road Applications written by Kenneth H. Addink and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Anchorage (Structural engineering) categories.
The safety shape portable concrete barrier (PCB) has been approved for use when placed on a bituminous or concrete pad. Construction personnel would like to use PCBs in temporary situations along roadways where the use of a bituminous or concrete pad is impractical and costly. However, when PCBs are placed on soil foundations with no anchorage, they tend to dig into the soil, causing the barrier sections to rotate or overturn. The objective of this research was to develop a device which will allow temporary PCBs placed on soil foundations to translate without significant rotation when impacted by errant vehicles. This device was developed and successfully tested to Test Level 3 of the National Cooperative Highway Research Program (NCHRP) Report No. 350.