دانلود کتاب AASHTO LRFD Bridge Design Specifications, Customary U.S. Units with 2008 and 2009 U.S. Edition Interim Revisions

Based on the load and resistance factor design philosophy (LRFD), this book is the result of a five-year research effort under AASHTO's National Cooperative Highway Research Program (NCHRP) Project 12-42, and a continued effort through AASHTO technical committees. This major step in improved bridge design and more accurate analysis is expected to lead to bridges exhibiting superior serviceability, enhanced long-term maintainability, and more uniform levels of safety. Since the First Edition was published in 1994, the provisions have continued to be updated and improved based on continuing research and the experience of the user community. The new specifications have been systematically tested in trial designs and have now been implemented by all 50 states, with 48 states fully implemented. Included in this electronic edition are the 2008 and 2009 Interim Revisions. Following each chapter the revisions are identified as well as linked throughout the entire book where available. See the Changed and Deleted Articles sections for a complete list of changes to each section. Content: Front Matter • Preface and Abbreviated Table of Contents • Table of Contents • Changed and Deleted Articles, 2007 • Changed and Deleted Articles, 2008 • Changed and Deleted Articles, 2009 Section 1. IntroductionSection 2. General Design and Location FeaturesSection 3. Loads and Load FactorsSection 4. Structural Analysis and EvaluationSection 5. Concrete StructuresSection 6. Steel StructuresSection 7. Aluminum StructuresSection 8. Wood StructuresSection 9. Decks and Deck SystemsSection 10. FoundationsSection 11. Abutments, Piers, and WallsSection 12. Buried Structures and Tunnel LinersSection 13. RailingsSection 14. Joints and Bearings Index