Three-cable Guardrail Adjacent to Steep Slope PDF Download
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Author: Ryan M. Nelson
Publisher:
ISBN:
Category :
Languages : en
Pages : 228
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Book Description
Author: Ryan M. Nelson
Publisher:
ISBN:
Category :
Languages : en
Pages : 228
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Book Description
Author:
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 91
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Book Description
Author:
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 142
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Book Description
Author: American Association of State Highway and Transportation Officials. Task Force for Roadside Safety
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 560
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Book Description
Author: Robert W. Bielenberg
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 124
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Book Description
In the early 2000s, MwRSF conducted full-scale crash testing on low-tension cable barrier systems installed adjacent to 1.5H:1V slopes. A design was successfully tested according to NCHRP Report 350 criteria, but the tested and approved configuration utilized a 4-ft (1.2 m) post spacing and a 4-ft (1.2 m) offset from the slope break point (SBP). Therefore, NDOT funded this research study to investigate if revisions to the low-tension cable barrier system could be identified which were likely to satisfy MASH requirements and which would be more cost-effective. This research study was conducted to investigate alternative low-tension cable barrier designs and configurations which would be likely to satisfy MASH TL-3 impact conditions and which would improve cost-effectiveness and/or usability for NDOT. Test nos. LTCB-1 through LTCB-5 were conducted on S3x5.7 steel posts at varying offset distances from a 1.8H:1V slope. Test no. LTCB-6 was conducted to evaluate the propensity for S3x5.7 posts to penetrate a small car test vehicle's floor pan, and tearing was observed. Subsequent component tests of an HSS3x2x1/8 tubular post alternative in development for use with high-tension cable median barrier systems was found to provide acceptable performance while mitigating floor pan tearing. Computer simulations were performed to investigate alternative barrier configurations. Various combinations of post spacing, barrier offset, and cable heights were evaluated. It was determined that systems with 3-ft (0.9-m) offset from the slope with 4-ft (1.2-m) post spacing, or 4-ft (1.2-m) offset from the slope with 6-ft (1.8-m) post spacing, may perform acceptably according to MASH TL-3 test designation no. 3-11.
Author: American Association of State Highway and Transportation Officials. Task Force for Roadside Safety
Publisher: AASHTO
ISBN: 1560515090
Category : Technology & Engineering
Languages : en
Pages : 345
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Book Description
"The Roadside Design Guide presents a synthesis of current information and operating practices related to roadside safety and is written in dual units-metric and U.S. Customary. This book is a guide. It is not a standard, nor is it a design policy. It is intended to use as a resource document from which individual highway agencies can develop standards and policies. Although much of the material in the guide can be considered universal in its application, several recommendations are subjective in nature and may need modification to fit local conditions. However, it is important that significant deviations from the guide be based on operational experience and objective analysis. The 2011 edition of the AASHTO Roadside Design Guide has been updated to include hardware that has met the evaluation criteria contained in the National Cooperative Highway Research Program (NCHRP) Report 350: Recommended Procedures for the Safety Performance Evaluation of Highway Features and begins to detail the most current evaluation criteria contained under the Manual for Assessing Safety Hardware, 2009 (MASH). For the most part, roadside hardware tested and accepted under older guidelines that are no longer applicable has not been excluded in this edition." -- AASHTO website.
Author: United States. Army. Corps of Engineers. 304th regt
Publisher:
ISBN:
Category : World War, 1914-1918
Languages : en
Pages : 500
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Book Description
Author: Chuck A. Plaxico
Publisher: Transportation Research Board
ISBN: 0309088208
Category : Technology & Engineering
Languages : en
Pages : 106
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Book Description
At head of title: National Cooperative Highway Research Program.
Author: Roberto Tomás
Publisher: CRC Press
ISBN: 1040225756
Category : Technology & Engineering
Languages : en
Pages : 1585
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Book Description
New Challenges in Rock Mechanics and Rock Engineering includes the contributions presented at the ISRM European Rock Mechanics Symposium Eurock 2024 (Alicante, Spain, 15-19 July 2024), and explores cutting-edge advancements in rock mechanics and rock engineering. This comprehensive compilation covers various aspects of rock mechanics and rock engineering, including: rock properties, testing methods, infrastructure and mining rock mechanics, design analysis, stone heritage preservation, geophysics, numerical modeling, monitoring techniques, underground excavation support, risk assessment, and the application of EUROCODE-7 in rock engineering. Furthermore, it addresses areas like geomechanics for the oil and gas industry, applications of artificial intelligence, remote sensing methodologies and geothermal technology. New Challenges in Rock Mechanics and Rock Engineering covers the latest breakthroughs and tackles the new challenges in rock mechanics and rock engineering, is aimed at scientists and professionals in these fields, and serves as an essential resource for keeping up to date with industry trends and solutions.
Author: L.R. Kadiyali
Publisher: KHANNA PUBLISHING HOUSE
ISBN: 9386173131
Category : Technology & Engineering
Languages : en
Pages : 604
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Book Description
This book on Highway Engineering shall be useful for B.E./B.Tech & M.E/ M.Tech students of Civil Engineering. It shall also be useful for practicing Engineering and designers.
