Footfall Analysis

[GabrieleNovembri1027]

hello,
has anyone ever tried to do analysis a footfall with Robot?.
I always get the same error (see attached image). Anyone know where I can find a tutorial?
thanks

[Artur.Kosakowski · Accepted solution]

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@GabrieleNovembri1027 wrote:

hello,
has anyone ever tried to do analysis a footfall with Robot?.
I always get the same error (see attached image). Anyone know where I can find a tutorial?
thanks

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I'm attaching a document with an example of such analysis. I hope you find it useful. Mind that you should set the solver type as Automatic as the Multithreaded one is not available for this kind of analysis.

[GabrieleNovembri1027]

Hi,
thanks for the material and very useful information. I'm doing some tests and I noticed some problems. (see attached picture) The problem appears to be related to 64-Bit Version. Do you know if the result is correct despite the error?

Thanks

[Artur.Kosakowski]

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@GabrieleNovembri1027 wrote:

Hi,
thanks for the material and very useful information. I'm doing some tests and I noticed some problems. (see attached picture) The problem appears to be related to 64-Bit Version. Do you know if the result is correct despite the error?

Thanks

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I assume this is the consequence of the parameters you set rather than the error. I think that the only active mass direction is  Z which means you cannot have the results for disabled X and Y.

[GabrieleNovembri1027]

hi,
I agree with you but I think it would be more useful to have a value of zero rather than -1, j #
thanks

[Artur.Kosakowski · Accepted solution]

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@GabrieleNovembri1027 wrote:

hi,
I agree with you but I think it would be more useful to have a value of zero rather than -1, j #
thanks

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I agree that 0s will look better (not sure if in this case they are of any use anyway ). I will discuss such change with the developers.

[Artur.Kosakowski · Accepted solution]

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@GabrieleNovembri1027 wrote:

hi,
I agree with you but I think it would be more useful to have a value of zero rather than -1, j #
thanks

---

I agree that 0s will look better (not sure if in this case they are of any use anyway ). I will discuss such change with the developers.

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In v.2013 this should be displayed as N/A (not available).

[GabrieleNovembri1027]

Great Artur

[Anonymous]

Hello,

Would anyone know from which part of BS 5400 the limit response factor of R<64   for footbridges is taken?  Can not find it in any BS5400 I have.

Thank you in advance

[Anonymous]

A basic question likely solved by a simple answer as I am a complete novice with RSA...

...how do you ensure the self weight of the structure, plus additional dead loads and a percentage of the live load are taken account of in the footfall analysis?

I am modelling a floor plate with 7 x 4 bays in accordance with the SCI P354 guide.

[Anonymous]

I've just seen this in the Concrete Centre guide to vibration on page 20:

[Anonymous]

Can somebody confirm that by carrying out a self-excitation footfall analysis on RSA is equivalent to assessing a floorplate for continuous vibration? Also, can it be confirmed that, by isolating an area of floorplate as a corridor to assess the implication on adjacent rooms (receptor nodes) and adopting full excitation is equivalent to the VDV approach in SCI P354?