Westergaard Support Reactions for Wheel Loads
Westergaard Support Reactions for Wheel Loads
(OP)
I have the paper by Westergaard titled the Computation of Stresses in Bridge Slabs Due to Wheel Loads from March 1930. In it Table 10 indicates the left reactions for various spacings as a function of the simple span. Can anyone verify the left reaction value for a 20 kip load placed 1 foot away from the left support for 7 foot wide concrete slab? The table indicates extremely small reaction values on the order of 0.0117 x 20 kips per foot or 234#/ft? Any tips will be greatly appreciated.






RE: Westergaard Support Reactions for Wheel Loads
RE: Westergaard Support Reactions for Wheel Loads
RE: Westergaard Support Reactions for Wheel Loads
I do not have the paper here at work but I will try to remember to dig it up tonight and check back with you tomorrow.
RE: Westergaard Support Reactions for Wheel Loads
RE: Westergaard Support Reactions for Wheel Loads
RE: Westergaard Support Reactions for Wheel Loads
RE: Westergaard Support Reactions for Wheel Loads
Linda Hall Library
5109 Cherry St.
Kansas City, Missouri 64110-2498
Phone: 816-363-4600
RE: Westergaard Support Reactions for Wheel Loads
RE: Westergaard Support Reactions for Wheel Loads
I have already done a shell analysis on it with Ram Advanse. Real Nice Job. Done Deal. Thanks.
RE: Westergaard Support Reactions for Wheel Loads
Would you like to describe how you set up your model in Advance and what kind of results you got compared to Westigards method? I've not tried modeling a bridge deck as a shell in RAM Advanse.
RE: Westergaard Support Reactions for Wheel Loads
I don't really have a bridge problem. What I do have is a 7 foot square slab over a 17 foot deep hole in the middle of a driveway where fire trucks and other AASHTO H25 wheel loads will travel over. I was only looking for a "check" against Westergaards paper. Ram Advanse solved 120 simultaneous equations in a micro second to get me the deflections, shears and bending stresses. It also gave me the rebar required. I then checked the results against a book by Cook and Young for classical plate theory.