Applying floor loads to displace the location of the CG?

dannie — Fri, 27 May 2016 16:45:26 GMT

Hi,

I am modelling a steel structure for which the weight and center of gravity are known. The objective is to check the reactions on the supports and to verify the overall structural integrity.

I have finished the model now, I used a factor on the self-weight load to obtain the known weight, but now I need to shift the location of the CG in model to match the actual location in the real structure (it differs from my model because of miscellaneous equipment present in the structure, for which the weight is unknown).

Can you suggest an approach to this? I was thinking of applying live loads on the floor, close to where this miscellaneous equipment is located, until I get an CG close enough to the one I need. But this seems to be a trial/error method which might be very time consuming and inaccurate.

Any ideas?

Kind regards.

Modelling of steel beams with variable depth

dannie — Wed, 25 May 2016 16:26:41 GMT

Hello,

I am trying to model a steel structure that includes beams with variable depth.

I have tried using the Tapered beam tool, however, the variation in depth is created symmetrically to the cg, and in my case, I need that the upper flange remains horizontal and aligned to the adjacent beams. Can you please suggest a solution to this?

Thank you in advance.

Kind regards,

dannie's Activities

Applying floor loads to displace the location of the CG?

Modelling of steel beams with variable depth