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I have a steel beer keg of 13kg falling 2.0m onto a concrete pavement. What is the approximate duration of impact in order to calculate the deceleration and hence the force imparted on the pavement (I have estimated it to be less than 0.1 seconds but I am not sure how to justify this)

I refer to a previous question raised by tjclose regarding aircraft bridge design guides. Reference was made to an ASCE Journal of Bridge Engineering Nov/Dec 2001 vol 6 no 6, "Design consideration of aircraft bridges by Bruce A Moulds". Could you please fax this article to me at +44...

What range of dynamic load factor should be used above the maximum aircraft weight to design a minor bridge structure (4m span)under an apron slab?

I am searching for a typical specification for a tension canopy for a design and build project. Thanks

I wish to obtain a correlation between allowable soil bearing capacity and (kN/m2) and the California bearing ratio (CBR). This may be in graphic or formula format