I am working on about 100 year truss bridge rehab. over the Erie canal in New York State.
My main concern is the faying surface between the galvanized and painted gusset plates and the painted diagonals.
The gusset plates are to be galvanized and painted with a 2 coat paint system.
The...
I thank you for all your responses. I feel I do need to clear some things up.
It was supposed to be - 3 of 6 mats.
Yes it is 2- 7/8" diameter rods - The holes they are drilled in are ~1 1/8" dia. The rods are placed on 2' centers
RHTPE - I think your explanation of the mats using the friction...
To All,
I am working on designing a false work/jacking system to support a multi-span steel bridge. The support system is so the replacement of the substructure pier may take place.
I have received my calculation package back from a state reviewing agency. See attached sheet.
The two main...
I cannot panelize the 2 girder because I do not have the money in for the larger crane also the radii I am setting the girders at is 80 to 85 ft, this turns into a 175 ton crane (I am setting from behind the abutments) so if I panelized the girders it would turn into about a 300 ton crane...
well this analysis is for the first girder only, thus before any diaphragms (4 even spaces along the bridge) are installed with the placing of the second girder. The temporary wind load that I came up with is based on a 70 mph wind ~ 1304 k-in.
Also Nutte i have checked it with the 13th edition...
I am planning on erecting a girder over a steam. The problem I am running into is that when the first girder is at rest (simple span,) fb is greater than Fcr, besides supporting the girder in-between the span is there anything I can do to increase Fcr or reduce fb. (Notes Fcr and fb taken from...
