Development And Testing Of A Non Pinned Low Profile End Treatment

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Development And Testing Of A Non Pinned Low Profile End Treatment

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Author : W. Lynn Beason
language : en
Publisher:
Release Date : 2013

Development And Testing Of A Non Pinned Low Profile End Treatment written by W. Lynn Beason and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Roads categories.

Development Of A Non Pinned Low Profile End Treatment

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Author : Felicia Jean Desorcie
language : en
Publisher:
Release Date : 2014

Development Of A Non Pinned Low Profile End Treatment written by Felicia Jean Desorcie and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.

In the early 1990s, the Low-Profile Portable Concrete Barrier (PCB) system, including both the sloped Low-Profile PCB segment and Low-Profile PCB end treatment, were developed. The original Low-Profile PCB end treatment was designed with steel pins inserted along the barrier centerline, through precast holes, and anchored to the pavement or subgrade. The purpose of these pins was to reduce lateral deflection of the end treatment during an impact. For various reasons, users of the Low-Profile PCB system have stated that the system would be more easily deployed if the vertical pins were not used in situations where lateral deflections can be permitted. The primary objective of the research presented herein was to determine the feasibility of removing the vertical, steel pins from the Low-Profile PCB end treatment in certain applications and if necessary make modifications. The secondary objective of the research presented herein was to demonstrate the applicability of the finite element analysis (FEA) to unpinned barrier systems. The research objectives were achieved through the use of sound engineering judgment, FEA, and a full-scale crash test. Based on sound engineering judgment and approximate strength analyses of the original Low-Profile PCB design, the author determined the system would most likely function acceptably but would have large lateral deflections. In order to increase connection rigidity and thus control lateral displacement, a plate washer was added to the barrier connection. The modified non-pinned Low-Profile PCB system was tested for strength in a full-scale crash test under Manual for Assessing Safety Hardware (MASH) test 2-35. Additionally, the recommended system was analyzed under similar test conditions with LS-DYNA, a finite element code. The recommended system passed the MASH test 2-35, in both a full-scale crash test and FEA. While this does not replace the original barrier, it does provide another option for use of the Low-Profile PCB in situations where sufficient room for deflection outside of the length of need exists. If this room does not exist, the barrier must remain pinned. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/151825

Organometallics Bioinorganic Chemistry Polynuclear Hydrocarbons And Uv Ir Spectroscopy Lab

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Author : Mr. Rohit Manglik
language : en
Publisher: EduGorilla Publication
Release Date : 2024-03-05

Organometallics Bioinorganic Chemistry Polynuclear Hydrocarbons And Uv Ir Spectroscopy Lab written by Mr. Rohit Manglik and has been published by EduGorilla Publication this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-03-05 with Science categories.

EduGorilla Publication is a trusted name in the education sector, committed to empowering learners with high-quality study materials and resources. Specializing in competitive exams and academic support, EduGorilla provides comprehensive and well-structured content tailored to meet the needs of students across various streams and levels.

U S Government Research Development Reports

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Author :
language : en
Publisher:
Release Date : 1967

U S Government Research Development Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Science categories.

Test Driven Database Development

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Author : Max Guernsey III
language : en
Publisher: Addison-Wesley
Release Date : 2013-02-20

Test Driven Database Development written by Max Guernsey III and has been published by Addison-Wesley this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-02-20 with Computers categories.

The practice of Test-Driven Development (TDD) has helped thousands of software developers improve quality, agility, productivity, and speed. In Test-Driven Database Development, Max Guernsey, III shows how to adapt TDD to achieve the same powerful benefits in database design and development. Guernsey first explains why TDD offers so much potential to database practitioners, and how to overcome obstacles such as the lack of conventional “testable classes.” You’ll learn how to use “classes of databases” to manage change more effectively; how to define testable database behaviors; how to maximize long-term maintainability by limiting a database’s current scope; and how to use “emergent design” to simplify future expansion. Building on this foundation, the author guides you through implementing modern TDD processes and database refactoring. He presents practical techniques for improving legacy databases; for deviating from strict TDD when necessary; and for adapting TDD to applications that persist data in file systems, XML, or serialized objects. Guernsey shows how to • Build a simple infrastructure to track and standardize scripts and databases • Define a sustainable TDD process for database design • Safely change a design without losing data • Design new databases that are lighter, leaner, simpler, more testable, and easier to change • Reduce design costs by eliminating duplication • Gradually bring the benefits of TDD, agility, and modern design to legacy databases • Remediate errors that find their way into database designs • Isolate behaviors and avoid unwanted dependencies that cause tests to fail With this book as a guide, you will learn how to apply the proven practice of TDD to your database needs, and organize and optimize your organization’s data for a significant competitive advantage. Test-Driven Database Development is the newest title in the highly respected NetObjectives Lean-Agile Series.

Castanea

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Author :
language : en
Publisher:
Release Date : 1937

Castanea written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1937 with Botany categories.

Proceedings Of The Institution Of Civil Engineers

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Author :
language : en
Publisher:
Release Date : 2004

Proceedings Of The Institution Of Civil Engineers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Civil engineering categories.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1990

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Aeronautics categories.

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Stessa 2000 Behaviour Of Steel Structures In Seismic Areas

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Author : Federico Mazzolani
language : en
Publisher: CRC Press
Release Date : 2000-01-01

Stessa 2000 Behaviour Of Steel Structures In Seismic Areas written by Federico Mazzolani and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-01-01 with Technology & Engineering categories.

This is a review of developments in the behaviour and design of steel structures in seismic areas. The proceedings look at the analytical and experimental research on the seismic response of steel structures, and cover topics such as global behaviour and codification, design and application.

Agricultural Research

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Author :
language : en
Publisher:
Release Date : 1976

Agricultural Research written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Agriculture categories.