Vertical Braces - RISA 3D

[FEM4Structures]

Have a RISA-3D model / analysis of steel framed mezzanine. By going through the results, how can one tell the vertical braces (Cross type for instance) will be required between the columns?

Thanks,

FEM4Structures

 

[jayrod12]

you should know if the braces are required before you model your structure in RISA. otherwise why would you put them on the model in the first place?

 

[msquared48]

You can always install them first, and use them as dummy members to see if the column works without them.

Mike McCann
MMC Engineering

 

[FEM4Structures]

Thanks Mike.

Thanks,

FEM4Structures

 

[TopKnot]

A few tips:
1. Make sure you have member moments released where it should be.

2. I think it's a good step to replace your fixed BCs with varying stiffness of springs just to check how moments redistribute and deflection is affected.

3. A apply a lateral load to the mezzanine of 1% D+L with pdelta turned on. More it is is a public mezzanine. More like 10%.

_________________________
TKE