https://forums.autodesk.com/t5/robot-structural-analysis-forum/2-thicknesses-slabs-2-beams-depths-unique-moment-map/m-p/6054052#M56968 <P>Hello all, good time for all of you.</P><P>&nbsp;</P><P>While modelling a floor, there are different thicknesses in the same floor. S 20 is the main slab and s 16 is the bath slab. The main system is flat slab.&nbsp;</P><P>&nbsp;</P><P>As we know for equilibrium, any point should have one moment value to acheive the equilibrium principle. In the attached model (1), there are irregular moment diagram. In onother way, at one point there are 2 value of moments.</P><P>&nbsp;</P><P>In the model (2), I have modelled a beam with differen depths ( 12*70 + 12*120 + 12*70 ) , the moment is regular and familiar.</P><P>&nbsp;</P><P>Why it is regular for beams and irregular for slabs ?&nbsp;</P><P>&nbsp;</P><P><IMG src="https://forums.autodesk.com/t5/image/serverpage/image-id/220142i403DD20F41CC8E16/image-size/original?v=mpbl-1&amp;px=-1" border="0" alt="1.png" title="1.png" /><IMG src="https://forums.autodesk.com/t5/image/serverpage/image-id/220143iC6BDE87C48210434/image-size/original?v=mpbl-1&amp;px=-1" border="0" alt="2.png" title="2.png" /></P><P>&nbsp;</P><P>&nbsp;</P> Wed, 24 Feb 2016 09:57:11 GMT Mohammed_Ata 2016-02-24T09:57:11Z https://forums.autodesk.com/t5/robot-structural-analysis-forum/2-thicknesses-slabs-2-beams-depths-unique-moment-map/m-p/6054052#M56968 <P>Hello all, good time for all of you.</P><P>&nbsp;</P><P>While modelling a floor, there are different thicknesses in the same floor. S 20 is the main slab and s 16 is the bath slab. The main system is flat slab.&nbsp;</P><P>&nbsp;</P><P>As we know for equilibrium, any point should have one moment value to acheive the equilibrium principle. In the attached model (1), there are irregular moment diagram. In onother way, at one point there are 2 value of moments.</P><P>&nbsp;</P><P>In the model (2), I have modelled a beam with differen depths ( 12*70 + 12*120 + 12*70 ) , the moment is regular and familiar.</P><P>&nbsp;</P><P>Why it is regular for beams and irregular for slabs ?&nbsp;</P><P>&nbsp;</P><P><IMG src="https://forums.autodesk.com/t5/image/serverpage/image-id/220142i403DD20F41CC8E16/image-size/original?v=mpbl-1&amp;px=-1" border="0" alt="1.png" title="1.png" /><IMG src="https://forums.autodesk.com/t5/image/serverpage/image-id/220143iC6BDE87C48210434/image-size/original?v=mpbl-1&amp;px=-1" border="0" alt="2.png" title="2.png" /></P><P>&nbsp;</P><P>&nbsp;</P> Wed, 24 Feb 2016 09:57:11 GMT https://forums.autodesk.com/t5/robot-structural-analysis-forum/2-thicknesses-slabs-2-beams-depths-unique-moment-map/m-p/6054052#M56968 Mohammed_Ata 2016-02-24T09:57:11Z https://forums.autodesk.com/t5/robot-structural-analysis-forum/2-thicknesses-slabs-2-beams-depths-unique-moment-map/m-p/6054178#M56969 <P>In this particular case ,you may use " global smothing" . Better explained when using panel cuts.</P> <P><IMG src="https://forums.autodesk.com/t5/image/serverpage/image-id/220160i7321581EFCF524FB/image-size/large?v=mpbl-1&amp;px=-1" alt="smothing within a panel.jpg" title="smothing within a panel.jpg" border="0" /><IMG src="https://forums.autodesk.com/t5/image/serverpage/image-id/220162i06FEA355B28C8144/image-size/large?v=mpbl-1&amp;px=-1" alt="global smoothing.jpg" title="global smoothing.jpg" border="0" /></P> <P>&nbsp;</P> <P>you should not use global smoothing between slabs and walls</P> <P>&nbsp;</P> Wed, 24 Feb 2016 11:52:01 GMT https://forums.autodesk.com/t5/robot-structural-analysis-forum/2-thicknesses-slabs-2-beams-depths-unique-moment-map/m-p/6054178#M56969 Rafacascudo 2016-02-24T11:52:01Z