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5 results for "LRFD"
Load and Resistance Factor Design (LRFD) for Highway Bridge Substructures By Federal Highway Administration
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For many years, engineers have designed foundations, walls and culverts for highway and other applications using allowable stress design (ASD) methods. In ASD, all uncertainty in loads and material... More > resistance is combined in a factor of safety or allowable stress. For most highway design, the American Association of State Highway and Transportation Officials (AASHTO) Standard Specifications for Highway Bridges represents the primary source document for ASD of substructures. In 1994, AASHTO approved Load and Resistance Factor Design (LRFD) in the LRFD Highway Bridge Design Specifications. In LRFD, the uncertainty in load is represented by a load factor and the uncertainty in material resistance is represented by a resistance factor. Due to the fundamental differences between the substructure design process by ASD and LRFD, this course has been developed to present the fundamentals of LRFD for the geotechnical design of highway bridge substructures.< Less
Drilled Shafts: Construction Procedures and LRFD Design Methods, Volume II By Federal Highway Administration
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This manual is intended to provide a technical resource for engineers responsible for the selection and design of drilled shaft foundations for transportation structures. This manual embraces both... More > construction and design of drilled shafts, and addresses the following topics: applications of drilled shafts for transportation structure foundations; general requirements for subsurface investigations; construction means and methods; LRFD principles and overall design process; geotechnical design of drilled shafts for axial and lateral loading; extreme events including scour and earthquake; LRFD structure design; field loading tests; construction specifications; inspection and records; non-destructive integrity tests; remediation of deficient shafts; and cost estimation. This volume includes Chapters 16-23 and the appendices.< Less
Drilled Shafts: Construction Procedures and LRFD Design Methods, Volume I By Federal Highway Administration
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This manual is intended to provide a technical resource for engineers responsible for the selection and design of drilled shaft foundations for transportation structures. This manual embraces both... More > construction and design of drilled shafts, and addresses the following topics: applications of drilled shafts for transportation structure foundations; general requirements for subsurface investigations; construction means and methods; LRFD principles and overall design process; geotechnical design of drilled shafts for axial and lateral loading; extreme events including scour and earthquake; LRFD structure design; field loading tests; construction specifications; inspection and records; non-destructive integrity tests; remediation of deficient shafts; and cost estimation. This volume includes Chapters 1-15.< Less
Single Angle Design Manual By Whitney McNulty
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LRFD and ASD design of single angles for tension, compression shear and bending, including principal axis bending according to the 13th edition of the AISC manual. Covers both equal and unequal leg... More > angles. 139 pages.< Less
Shallow Foundations By Federal Highway Administration
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This book is the Federal Highway Administration’s primary reference of recommended design and procurement procedures for shallow foundations. It presents state-of-the-practice guidance on the... More > design of shallow foundation support of highway bridges. The information is intended to be practical in nature, and to especially encourage the cost-effective use of shallow foundations bearing on structural fills. To the greatest extent possible, the document coalesces the research, development and application of shallow foundation support for transportation structures over the last several decades. Detailed design examples are provided for shallow foundations in several bridge support applications according to both Service Load Design and Load and Resistance Factor Design methodologies. Guidance is also provided for shallow foundation applications for minor structures and buildings associated with transportation projects.< Less