These new trainings address design considerations for bridges according to the American Association of State Highway and Transportation Officials' LRFD
Bridge Design Specifications.
These stresses were checked against the limits given in AASHTO LRFD
for construction stage loads and found to be satisfactory.
While AASHTO LRFD
Bridge Design Specifications provide design guidance, notes C13 member and American Concrete Pipe Association Director of Technical Services Josh Beakley, small communities and agencies are not always as familiar with AASHTO requirements as state departments of transportation that use them on a more regular basis.
American Association of State Highway and Transportation Officials (AASHTO), AASHTO LRFD
Brides: Design Especifications, Estados Unidos de America, 2012.
Para el diseno se utilizaron metodologias propuestas en las Especificaciones para el Diseno de Puentes AASHTO LRFD
4a Edicion (2007).
This Manual is consistent with the LRFD
(Load and Resistance Factor Design) specifications in using reliability based limit states philosophy and extends the provisions of the LRFD
specifications to the areas of inspection, load rating, posting and permit rules, fatigue evaluation, and load testing of existing bridges.
Among appendices are quick references to AASHTO LRFD
2008 specifications and manual.
for assessment of deteriorating existing structures.
Steel Design, third edition, Brooks/Cole-Thompson Learning, Pacific Grove, USA, 2003
The First Edition of the LRFD
Specification was published by the American Association of State Highway and Transportation Officials (AASHTO) in 1994, as an alternate to the Standard Specifications for Highway Bridges.
These six methods are: three nationwide methods--the AASHTO Standard method, the AASHTO LRFD
method, and the AASHTO Lump Sum method; a modified AASHTO method; a PCI method; and a proposed time-step method.
Bridge Specification is the standard used by state Departments of Transportation (DOTs) to set local bridge design codes.