Arc bridge
Arc bridge
(OP)
Can anyone direct me to a source or sources on the topic of Arc type bridges? We have a 160' clear span that we intend to bridge with an Arc type bridge. Conceptually we are going to use two rolled plate girders for the arcs and use hangers to support the deck. Thanks for any help





RE: Arc bridge
Regards,
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RE: Arc bridge
RE: Arc bridge
this is a nearly 50m span which although no means large does limit the choices. I think the type of bridge proposed by Skicat is worth a look.
A box section using precast postensioned segments would be a good solution, but then the erection scheme could be expensive.
A steel truss bridge with composite deck could also be considered.
Which solution do you propose?
RE: Arc bridge
Our company does many arches, tied arches, true arches and spandrel arches. Mostly we don't consider their use until your up around 700' spans.
However this was a special situation where existing road could not be raised over a creek with relatively high water level.
If it can be avoided, I agree with bridgedesign222, use something else.
Regards,
![[pipe] pipe](https://www.tipmaster.com/images/pipe.gif)
Qshake
Eng-Tips Forums:Real Solutions for Real Problems Really Quick.
RE: Arc bridge
RE: Arc bridge
Try to find this old FHWA publication: "Arch Bridges" by Douglas A. Nettleton.
By the way, if the bridge is a tied arch, you need to be careful with fracture critical details and with out of plane bending where the floorbeams meet the tie.
RE: Arc bridge