HORIZONTALLY CURVED STEEL BRIDGE

[INGERT]

Can someone help me with This problem ?. I designed a curved steel bridge with two U-trap twin steel sections . This is a single span bridge is 40m (~ 120ft ); deck width ~ 10.4m (~ 34ft ); Rad cl = 75.0m [ 246ft ] the construction will be shored composite . The contractor made ​​the shop drawings and proceeded to fabricate the u-trap beams with straight segments ~ 5.0m [ 17ft ] length . I think to divide each segment in smaller of ~ 1.70m [ 6ft ~ ] ends skewed and joint them with butt welds . I need to know : is it a right solution?. If there any specification or limit to use in curved straight segments in this kind of bridges? What else must I to do in design verification or construction recomendations .

 

[bridgebuster]

What' a u-trap? Is that we hat we in the US would call a tub girder?

 

[INGERT]

U-TRAP is an steel tube Trapezoidal OPEN section; with two top flanges and bracing between them.

 

[graybeach]

It should have been covered in the construction contract that the girders are to be fabricated curved and not made out of straight segments. Straight segments affect the structural behavior and aesthetics.