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RE: AASHTO truck loading

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There is only one set of wheel loads for a span, but you also need to
consider the lane load which is a 10-ft wide uniform load with one rider
(concentrated load). Lane loads normally govern the long bridges. Military
or your local department of transportation may require different loads.

Suresh Acharya, S.E. 

-----Original Message-----
From: Mete Baykır [mailto:MBaykir(--nospam--at)]
Sent: Thursday, March 06, 2003 3:36 AM
To: seaint(--nospam--at)
Subject: AASHTO truck loading

Hi list,
For the design of the longitudinal elements of a T-girder bridge, I am
trying to figure out the maximum M and V. The point I do not understand is
that, if the load is thought to be same on every beam using the proper "S"
factor (AASHTO 3.23.2) and impact effects as well, how many trucks should be
considered on a single span (isostatic span) ? Just one for each span ? Any
comments will be of great help. 




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