Posted Wed, 29 Sep 2010 13:37:53 GMT by Bogdan Mateescu IMSAT SA
I have a problem that i don't know how to explain
I modelised a structure like in the picture attached and i defined different cases of loadings.
loads from wind, seismic loads and permanent loads.
in 2 similar combination of loads i changed the sign for the horizontal loads
E.g.: 1) 1x[horizontal loads]+1x[vertical loads]+1x[wind loads]
         2) 1x[horizontal loads]-1x[vertical loads]+1x[wind loads]
when i run the analysis in the case no. 2) i obtained at the bottom of the pole in the rigid fixing point  a positive vertical effort.
After that, i changed and i replaced the weight of the element by vertical efforts bottom oriented. When i run the analysis i obtain the same value for the vertical effort at the bottom of the pole, which i consider normal.
can anyone explain to me what is happening actually

Attachment: 1_2.bmp

Posted Wed, 29 Sep 2010 13:39:26 GMT by Bogdan Mateescu IMSAT SA
I have a problem that i don't know how to explain
I modelised a structure like in the picture attached and i defined different cases of loadings.
loads from wind, seismic loads and permanent loads.
in 2 similar combination of loads i changed the sign for the horizontal loads
E.g.: 1) 1x[horizontal loads]+1x[vertical loads]+1x[wind loads]
         2) 1x[horizontal loads]-1x[vertical loads]+1x[wind loads]
when i run the analysis in the case no. 2) i obtained at the bottom of the pole in the rigid fixing point  a positive vertical effort.
After that, i changed and i replaced the weight of the element by vertical efforts bottom oriented. When i run the analysis i obtain the same value for the vertical effort at the bottom of the pole, which i consider normal.
can anyone explain to me what is happening actually



modification : it was an error at my post. The correct version is like that
E.g.: 1) 1x[horizontal loads]+1x[vertical loads]+1x[wind loads]
         2) -1x[horizontal loads]+1x[vertical loads]+1x[wind loads]
Posted Wed, 29 Sep 2010 14:19:06 GMT by
Hello,

Please send us the model, I need to see exactly how the loads are defined. All you have to send is just the save of the *.adb file when the result values are not correct; it's located in the "data" directory of your model or use "Technical support" from the menu bar under "?" and it will generate an archive. Send it to helpdesk.ad@graitec.ro

Best regards.

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