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Bridge Pedestrian Loading

Bridge Pedestrian Loading

Bridge Pedestrian Loading

(OP)
Is the new bridge pedestrian loading 90 psf?  We have AASHTO LRFD 4th Edition w/ 2008 Interim Revisions and it specifies 85 psf.  However, the LRFD Pedestrian Bridge Guide (December 2009) calls out 90 psf and references the 4th Edition w/ 2009 Interim Revisions.  Did the 4th Edition pedestrian loading change between the 2008 and 2009 Interim Revisions?  Thanks.

RE: Bridge Pedestrian Loading

The 5th edition of LRFD (2010) says that a pedestrian load of 75 psf shall be used for all vehicluar bridges.  If you are designing a pedestrian bridge, the latest version of AASHTO directs you to the guide specs:

"Bridges intended for only pedestrian, equestrian, light maintenance vehicle, and/or bicycle traffic should be designed in accordance with AASHTO's "Guide Specifications for the Design of Pedestrian Bridges."

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