https://forums.autodesk.com/t5/robot-structural-analysis-forum/advanced-nodal-support/m-p/5519692#M68421 <P>Hi.</P><P>&nbsp;</P><P>I've tested three slabs with different nodal supports.</P><P>&nbsp;</P><P>1. Pinned support</P><P>2. Pinned support with dimension a=1000mm b=1000mm h=1000mm</P><P>3. Pinned support with column a=1000mm b=1000mm</P><P>&nbsp;</P><P>Why is not support 2. giving me reduction of forces like number support 3?</P><P>&nbsp;</P><P>See attached files</P> Wed, 25 Feb 2015 12:27:32 GMT Grohl 2015-02-25T12:27:32Z https://forums.autodesk.com/t5/robot-structural-analysis-forum/advanced-nodal-support/m-p/5519692#M68421 <P>Hi.</P><P>&nbsp;</P><P>I've tested three slabs with different nodal supports.</P><P>&nbsp;</P><P>1. Pinned support</P><P>2. Pinned support with dimension a=1000mm b=1000mm h=1000mm</P><P>3. Pinned support with column a=1000mm b=1000mm</P><P>&nbsp;</P><P>Why is not support 2. giving me reduction of forces like number support 3?</P><P>&nbsp;</P><P>See attached files</P> Wed, 25 Feb 2015 12:27:32 GMT https://forums.autodesk.com/t5/robot-structural-analysis-forum/advanced-nodal-support/m-p/5519692#M68421 Grohl 2015-02-25T12:27:32Z https://forums.autodesk.com/t5/robot-structural-analysis-forum/advanced-nodal-support/m-p/5519791#M68422 <P>Because support type 2. is intended only to enable some approximative view of the dimensions of spread footing when "Support shapes" are activated in the display of attributes.</P> <P>Useful when displaying some plan of foundations.</P> <P>&nbsp;</P> <P>Reduction of forces is not made for such support. &nbsp;</P> <P>&nbsp;</P> <P><EM>---------------------------------------------</EM><BR /><EM>If this post answers your question please click the "Accept as Solution" button. It will help everyone to find answer more quickly!</EM></P> <P>&nbsp;</P> <P>Regards,</P> Wed, 25 Feb 2015 13:41:40 GMT https://forums.autodesk.com/t5/robot-structural-analysis-forum/advanced-nodal-support/m-p/5519791#M68422 Pawel.Pulak 2015-02-25T13:41:40Z