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ASTM A 01, covers carbon steel tee rails but only lists chemical requirements and hardness requirements. It does not list strength requirements. Since my original post, I have found tensile and yield properties for standard chemistry rail steel in the current AREMA Manual for Railway...

I am looking for information on the yield and tensile strength of 90lb. A.R.E.A. Train Rail.

Wiktor, Dinosaur: It seems that a "typical" load case would be that of a hard landing which would include a 100% impact factor on the gear loading. The "extreme" load case would be that of a crash landing which would be the failure load of the landing gear. Wiktor...

Wilktor: Thanks for all of the input. It was really helpful I have a question regarding your proposed method of using the frame analysis to locate the position for maximum longitudinal stresses and then use a FE model with the plane located at that location to determine the transverse...

Dinosaur: I agree that the "touchdown" loads are of a high concern. I have already done some preliminary work on the longitudinal load resisting mechanism and determined that it is really a soil-structure interaction problem between the frame action of the tunnel/bridge and the...

I am looking for the latest information regarding designing bridges to resist loadings produced by aircraft. I will be looking at a two-span, "tunnel" bridge which spans across a two lane highway and is continuous with the abutment walls and the center pier wall. Each cell of the...

Qshake: According to my AASHTO manual the wheel load distribution factors for concrete on steel I-beam stringers and prestressed concrete girders is based on "Design of I-Beam Bridges", by N.M. Newmark, 1948. I have not read the article, but I would be concerned that the d.f.'s would...

Are there design guides available for the design of bridges to carry airplanes rather than vehicles? In particular I am looking for slab and girder wheel load distribution factors similar to those found in the AASHTO manuals for vehicular bridge design. Thanks for your help.