Faa Finite Element Design Procedure For Rigid Pavements
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Faa Finite Element Design Procedure For Rigid Pavements
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Author : Edward H. Guo
language : en
Publisher:
Release Date : 2007
Faa Finite Element Design Procedure For Rigid Pavements written by Edward H. Guo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Finite element method categories.
"FEDFAA, Finite Element Design-Federal Aviation Administration, is a computer program for both airport rigid and flexible pavement thickness design. NIKE3D (a general-purpose, three-dimensional finite element method (3D-FEM) computer program) is the selected engine for critical stress calculation for airport rigid pavement design. The calculated edge stresses are used in the FEDFAA failure model to determine the slab thickness. Since FEDFAA is a tool for thickness design rather than for analysis, certain program modifications and selection of available elements in NIKE3D have been made during FEDFAA development; it includes (1) selection of the nonconforming eight-node solid element to model all layers of the pavement except the subgrade, (2) introduction of the infinite element to model the infinitely deep subgrade, (3) mesh densities in vertical and horizontal directions, and (4) slab size and width of subbase extension have been determined to fit the needs of the design. A procedure has also been developed to calculate the critical stress of the pavement from the stresses calculated by NIKE3D at the element Gaussian points. Finally, the modified 3D finite element-based program was evaluated by using three criteria: (1) the model must be theoretically correct; (2) the final stress calculation engine with modifications and simplifications provides critical stress close enough to the precise one; and (3) it should be able to complete this computation under aircraft load within a few minutes. This report provides detailed descriptions for model selections, program modifications, and numerical evaluations. The report concludes that the final tool satisfies all three criteria; therefore, it is a reliable and applicable tool for airport rigid pavement design."--P. [ii].
Advanced Pavement Design
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Author : Michael I. Hammons
language : en
Publisher:
Release Date : 1997
Advanced Pavement Design written by Michael I. Hammons and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Pavements, Concrete categories.
Advanced Pavement Design
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Author : Michael I. Hammons
language : en
Publisher:
Release Date : 1998
Advanced Pavement Design written by Michael I. Hammons and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Comparative Design Study For Airport Pavement
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Author : Lia Myriam Ricalde
language : en
Publisher:
Release Date : 2007
Comparative Design Study For Airport Pavement written by Lia Myriam Ricalde and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Pavements, Flexible categories.
"A comparative analysis of the results of different design methods is a powerful tool for evaluating and developing new pavement design procedures. A sensitivity, or comparative, analysis was employed during the development of Federal Aviation Administration (FAA) Advisory Circular (AC) 150.5320-16 and its computer program LEDFAA. The FAA is currently developing a new Portland cement concrete design procedure based on the three-dimensional finite element method (FEDFAA) and has modified the original subgrade vertical strain-based failure criteria used for flexible pavement design. This report includes a comparison and evaluation of both new construction and overlay designs over a broad range of input conditions."--P. [ii].
Design Of Overlays For Rigid Airport Pavements
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Author : Raymond S. Rollings
language : en
Publisher:
Release Date : 1988
Design Of Overlays For Rigid Airport Pavements written by Raymond S. Rollings and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Pavements, Concrete categories.
Pavement Engineering
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Author : Rajib B. Mallick
language : en
Publisher: CRC Press
Release Date : 2013-03-27
Pavement Engineering written by Rajib B. Mallick and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-27 with Technology & Engineering categories.
Pavements are engineered structures essential to transportation, commerce and trade, and everyday life. In order for them to perform as expected, they must be designed, constructed, maintained, and managed properly. Providing a comprehensive overview of the subject, Pavement Engineering: Principles and Practice, Second Edition covers a wide range of topics in asphalt and concrete pavements, from soil preparation to structural design and construction. This new edition includes updates in all chapters and two new chapters on emerging topics that are becoming universally important: engineering of sustainable pavements and environmental mitigation in transportation projects. It also contains new examples and new figures with more informative schematics as well as helpful photographs. The text describes the significance of standards and examines traffic, drainage, concrete mixes, asphalt binders, distress and performance in concrete and asphalt pavements, and pavement maintenance and rehabilitation. It also contains a chapter on airport pavements and discusses nondestructive tests for pavement engineering using nuclear, deflection-based, electromagnetic, and seismic equipment. The authors explore key concepts and techniques for economic analysis and computing life-cycle cost, instrumentation for acquiring test data, and specialty applications of asphalt and concrete. The Second Edition includes more relevant issues and recently developed techniques and guidelines for practical problems, such as selection of pavement type, effect of vehicle tires, and use of smart sensors in rollers and software for drainage analysis. This book presents in-depth, state-of-the-art knowledge in a range of relevant topics in pavement engineering, with numerous examples and figures and comprehensive references to online resources for literature and software. It provides a good understanding of construction practices essential for new engineers and materials processing and construction needed for solving numerous problems.
Advancement In The Design And Performance Of Sustainable Asphalt Pavements
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Author : Louay Mohammad
language : en
Publisher: Springer
Release Date : 2017-07-11
Advancement In The Design And Performance Of Sustainable Asphalt Pavements written by Louay Mohammad and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-07-11 with Science categories.
This volume on “Advancement in the Design and Performance of Sustainable Asphalt Pavements” includes a collection of research and practical papers from an international research and technology activities on Mixture Design Innovation, Structural Pavement Design, Advancement in Production and Construction, Climate Changes and Effects on Infrastructure, Green Energy, Technology and Integration. The volume constitutes an important contribution in view of the urgent need to develop materials, designs, and practices to ensure the sustainability of transportation infrastructure. This volume is part of the proceedings of the 1st GeoMEast International Congress and Exhibition on Sustainable Civil Infrastructures, Egypt 2017.
Advances In Materials And Pavement Prediction
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Author : Eyad Masad
language : en
Publisher: CRC Press
Release Date : 2018-07-16
Advances In Materials And Pavement Prediction written by Eyad Masad and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-16 with Technology & Engineering categories.
Advances in Materials and Pavement Performance Prediction contains the papers presented at the International Conference on Advances in Materials and Pavement Performance Prediction (AM3P, Doha, Qatar, 16- 18 April 2018). There has been an increasing emphasis internationally in the design and construction of sustainable pavement systems. Advances in Materials and Pavement Prediction reflects this development highlighting various approaches to predict pavement performance. The contributions discuss links and interactions between material characterization methods, empirical predictions, mechanistic modeling, and statistically-sound calibration and validation methods. There is also emphasis on comparisons between modeling results and observed performance. The topics of the book include (but are not limited to): • Experimental laboratory material characterization • Field measurements and in situ material characterization • Constitutive modeling and simulation • Innovative pavement materials and interface systems • Non-destructive measurement techniques • Surface characterization, tire-surface interaction, pavement noise • Pavement rehabilitation • Case studies Advances in Materials and Pavement Performance Prediction will be of interest to academics and engineers involved in pavement engineering.
Bearing Capacity Of Roads Railways And Airfields
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Author : Andreas Loizos
language : en
Publisher: CRC Press
Release Date : 2017-07-20
Bearing Capacity Of Roads Railways And Airfields written by Andreas Loizos and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-07-20 with Technology & Engineering categories.
Bearing Capacity of Roads, Railways and Airfields includes the contributions to the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields (BCRRA 2017, 28-30 June 2017, Athens, Greece). The papers cover aspects related to materials, laboratory testing, design, construction, maintenance and management systems of transport infrastructure, and focus on roads, railways and airfields. Additional aspects that concern new materials and characterization, alternative rehabilitation techniques, technological advances as well as pavement and railway track substructure sustainability are included. The contributions discuss new concepts and innovative solutions, and are concentrated but not limited on the following topics: · Unbound aggregate materials and soil properties · Bound materials characteritics, mechanical properties and testing · Effect of traffic loading · In-situ measurements techniques and monitoring · Structural evaluation · Pavement serviceability condition · Rehabilitation and maintenance issues · Geophysical assessment · Stabilization and reinforcement · Performance modeling · Environmental challenges · Life cycle assessment and sustainability Bearing Capacity of Roads, Railways and Airfields is essential reading for academics and professionals involved or interested in transport infrastructure systems, in particular roads, railways and airfields.
Investigation Of The Faa Overlay Design Procedures For Rigid Pavements
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Author : Yu T. Chou
language : en
Publisher:
Release Date : 1983
Investigation Of The Faa Overlay Design Procedures For Rigid Pavements written by Yu T. Chou and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
The existing FAA overlay design procedures and their history of development are first briefly presented in the report. This is followed by a detailed summary of consultant's reports, which include the identification of deficiencies in the existing procedures with suggested improvements. Immediate improvements to several items in the existing procedures are presented for use as new paragraphs and modification of existing paragraphs in the FAA Advisory Circular. Items to be addressed in a Phase II continuation study are presented. (Author).