Dynamic analysis with consistent mass matrix in Sap2000

[JoeH78]

Dear All,

How we can use the consistent mass matrix in Sap2000 for dynamic analysis, especially for frame elements.
It seems that SAP2000 uses the lumped masses at the dynamic problem solution.

Regards,

 

[PicoStruc]

As explained in Analysis Reference Manual,

"In a dynamic analysis, the mass of the structure is used to compute inertial forces.
The mass contributed by the Frame element is lumped at the joints I and j. No inertial
effects are considered within the element it self."

There is no option (that I know) to use a different kind of mass matrix.