Erection Bracing for Steel Beam for Bride

[ingdaniel]

Hi all,

I have a steel bridge with 50 m span composed witn 4 beam (2400 m height) bracing together.

The problem is because the weight of the beam is not posible to lift two beam together (with bracing), so we have to lift and install the beams one by one.

If we lift and instal one beam this will failt for Lateral Torsional Buckling.

So we need some bracing only for the installation.

There is any "typical" bracing for this situation? there any book or reference about this?

Hope you can help

Best regards..

 

[BAretired]

Bigger cranes or more cranes. Four cranes might be needed for the initial placement of two bridge girders braced together as a unit.

BA