7/23/2019 Portico en CP

http://slidepdf.com/reader/full/portico-en-cp 1/1

851

C. E. M. OLIVEIRA | E. A. P. BATELO | P. Z. BERKE | R. A. M. SILVEIRA | T. J. MASSART

on which an implicit Newmark integration scheme is applied and

where {f int

} represents the internal force vector, dependent on the

displacements {q} and the displacements rates {q} . The mass ma-

, {q} is the vector of nodal accelerationsand {f 

damping is introduced in the system of equations.

with respect to the displacements, i.e . the structural tangent opera-

tor, is also dependent on those rates and therefore introduces a

viscous damping term:

-

es damping at the structural level due to the strain rate dependent