I'm rating corrugated deck flooring. Mfr. brochure distributes wheel load over 20" x 20" area. AASHTO 3.30 says 20 x 10. This will increase loading by a factor of two. I don't think I should increase the area due to the thickness of the deck (2" min) like I might for a thicker deck. Any...
I'm looking for allowables to use when rating bridge flooring (corrugated). I have the yield value, but don't see anything in AASHTO for this type of steel (A570). Any help out there?
I'm working on developing repairs for an existing truss. Both of the middle diagonals (in the middle bay) have failed. Their ends were connected in the middle portion of pinned connections and the pin cannot be removed lest the entire structure fail. Of course, this is located high above a...
I'm looking for suggestions on how to support (internally, if possible) some utilities (phone, cable, electric) across a proposed 50' span constructed of prestressed voided slab beams. I think I can run the conduits inside the voids, but am looking for details in the end areas. Anybody have...
