AASHTO LRFDUS-7-M

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The AASHTO LRFD Bridge Design Specifications are intended for use in the design, evaluation, and rehabilitation of bridges, and are mandated by the Federal Highway Administration for use on all bridges using federal funding. These Specifications employ the Load and Resistance Factor Design (LRFL) methodology using factors developing from current statistical knowledge of loads and structural performance.

This new edition includes clearer direction on seismic isolation design, as well as a number of major updates and revisions to the following sections:

• Section 3, Loads;
• Section 4, Structural Analysis;
• Section 5, Concrete;
• Section 6, Steel;
• Section 10, Foundations;
• Section 11, Abutments; and
• Section 12, Buried Structures.

Please note: This publication references a CD that is no longer available. For information that was formerly contained on the disc, please consult this website: http://earthquake.usgs.gov/hazards/designmaps/