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Zero Stiffness Warning
- Thread starter subbu1985
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The SET PRINT 1 command's only purpose is to omit the message at the users request.
It is not an error. It is rather more a note or FYI. Zero rows and zero columns (at a joint) in the global stiffness matrix can occur when trusses or releases or tension/compression-only are used by some or all of the members at a joint. The zeroes are almost always harmless but the message is printed in case the engineer is not expecting zeroes. It is possible that a wind load/floor load will generate a load at a zero dof and in effect be lost but that is rare. The Print Static Check will be out of balance in such a case.
It is not an error. It is rather more a note or FYI. Zero rows and zero columns (at a joint) in the global stiffness matrix can occur when trusses or releases or tension/compression-only are used by some or all of the members at a joint. The zeroes are almost always harmless but the message is printed in case the engineer is not expecting zeroes. It is possible that a wind load/floor load will generate a load at a zero dof and in effect be lost but that is rare. The Print Static Check will be out of balance in such a case.
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