145' Aluminum Pony Truss Bridge
145' Aluminum Pony Truss Bridge
(OP)
I am looking for technical informations regarding long single span half-through bridge for pedestrians. I am looking to design a pedestrian bridge spaning 145' with a clear width of 12'.
In order to keep the stress inside allowable prescribed limits (considering the heat-affected-zone), the chords neutral axises would be spaced by a distance of approx. 9'. I found a company that does design/build of simar structures but they do limit the span of their pony truss bridges to 100' ht tp://www.m aadigroup. com/wp-con tent/uploa ds/2010/10 /MAADI-bri dge-models _V2_EN.pdf. Does anyone know if there are limitations in terms of clear span for such aluminum bridge type structures?
Thanks
In order to keep the stress inside allowable prescribed limits (considering the heat-affected-zone), the chords neutral axises would be spaced by a distance of approx. 9'. I found a company that does design/build of simar structures but they do limit the span of their pony truss bridges to 100' ht
Thanks






RE: 145' Aluminum Pony Truss Bridge
Dik
RE: 145' Aluminum Pony Truss Bridge
BA
RE: 145' Aluminum Pony Truss Bridge
Is there a specific reason for using aluminum? The lighter dead weight could result in vibration problems.
RE: 145' Aluminum Pony Truss Bridge
RE: 145' Aluminum Pony Truss Bridge
I'll check LRFD Guide Spec to Ped Bridges.. I wasn't aware of it. I was looking for low maintenance and extended lifespan.. I prefer aluminum to Cor-Ten steel (better architectural finish).
I also found a cool site for pedestrian bridges.. You can build your own bridge! Check under 'product' menu .. Customize your MakeABridge.. on makeabridge.com
The MAADI Group company said they can build it.. see attachement.
RE: 145' Aluminum Pony Truss Bridge
The article entitled "Common Mistakes Made in the Design of Aluminum Weldments" (starting at page 4 of the attached file)is a good starting point.
RE: 145' Aluminum Pony Truss Bridge