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Accidental torsion in seismic event |
bezehu
Member
Posts: 2
Joined: 18.10.07 |
| Posted on 08-01-2008 07:52 |
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Could you suggest me any online examples of how to handle the 5% requirements of EC8 4.3.2 Accidental torsional effects? Which structural analysis softwares are capable to calculate them? Thank you for your response. |
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| Author |
RE: Accidental torsion in seismic event |
Ditmar
Member
Posts: 4
Joined: 28.09.07 |
| Posted on 15-01-2008 08:29 |
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4.3.2.1 of EN 1998-1 can either be applied in a direct way by shifting the centre of the mass with eccentricity of (4.3).
Or in an indirect way by applying the method of 4.3.3.2.4. With this method the action effects (i.c. forces and displacements) of the individual load resisting elements are multiplied with a factor delta. |
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| Author |
RE: Accidental torsion in seismic event |
bezehu
Member
Posts: 2
Joined: 18.10.07 |
| Posted on 15-01-2008 15:09 |
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Thanks Ditmar. 4.3.3.2.4. can be applied only for symmetrical structures. The building I wanted to analyse is a non-symmetrical one, so 4.3.3.2.4 can not be used. I wanted to perform a quick hand calculation to see the magnitude of the effect of the 5% eccentricity. I guess if I would verify my results I need to use an other software so I can compare the results. |
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