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Active Contributor
tord
Posts: 35
Registered: ‎07-10-2012
Accepted Solution

deflection smaller in a heavier loadcase

189 Views, 2 Replies
01-03-2014 05:59 PM

Hello ARSA support

How come that the slab-deflection is smaller in a heavier loadcase.


In Eurocode 1990 and 1992-1-1 (Concrete) we use to calculate deflections either in characteristic loadcase (6.14b) or in frequent loadcase (6.15b).
We calculate cracks in quasi-permanent loadcase (6.16b).
In my calculation I have 2.6mm deflection in loadcase 6.15b and 16.9mm in loadcase 6,16b which is lighter.
See attachments.

 

Thanks / Tord

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Rafal.Gaweda
Posts: 5,498
Registered: ‎04-26-2010

Re: deflection smaller in a heavier loadcase

01-07-2014 03:07 AM in reply to: tord
Combination 20 should be set as QPR to properly calculate reinforcement - as written in warning message.


Rafal Gaweda
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Active Contributor
tord
Posts: 35
Registered: ‎07-10-2012

Re: deflection smaller in a heavier loadcase

01-07-2014 11:03 AM in reply to: Rafal.Gaweda

Thank you Rafal, but how about the deflection?

I want to test the deflection, with the new choice of reinforcement, to another loadcase.

In this case it´s a tiny difference, but i some cases for deflection the liveload will be multiplied with 0,7 and for Quasi (crack´s) with 0,3, then the difference will be considerable.

Tord

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