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Some Practical Considerations for LRFD Implementation for Geotechnical Features – Paper
State and local transportation agencies throughout the USA are at various stages of implementation of the Load and Resistance Factor Design (LRFD) as specified by the American Association of State and Highway Transportation Officials (AASHTO). This paper provides practical guidance that may assist agencies and practitioners with implementation of LRFD principles and details for geotechnical transportation features such as shallow foundations, deep foundations, earth retaining structures and earthworks.
Read MoreLRFD Example Problem 2 – CIP Wall with Sloping Backfill
This example problem presents a detailed solution for a typical cast-in-place (CIP) wall used by the Arizona Department of Transportation (ADOT). A sloping backfill configuration is assumed. The solution uses ADOT policies to demonstrate the application of LRFD principles in analyzing the external stability limit states that include...
Read MoreLRFD Example Problem 1 – CIP Wall with Level Backfill
This example problem presents a detailed solution for a typical cast-in-place (CIP) wall used by the Arizona Department of Transportation (ADOT). A level backfill configuration with a traffic barrier and live load surcharge is assumed. The solution uses ADOT policies to demonstrate the application...
Read MorePresentation at Western Bridge Engineers’ Seminar – Phoenix 2011
Presentation at Western Bridge Engineers' Seminar - Phoenix 2011
Read MoreADOT SF-1 (Spread Footing – Bearing Resistance and Settlement)
Development of Factored Bearing Resistance Chart by a Geotechnical Engineer for Use by a Bridge Engineer to Size Spread Footings on Soils for Service and Strength Limit States Based on Load and Resistance Factor Design (LRFD) Methodology
Read MoreADOT SF-2 (Spread Footing – Limiting Eccentricity)
Limiting Eccentricity Criteria for Spread Footings based on Load and Resistance Factor Design (LRFD) Methodology
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