MODELAR LOSAS EN RCBE

[ajmojicar2002]

Hola a todos,
Me encuentro analizando el programa RCBE v.6 pero al intentar modelar una losa aligerada me queda la duda de que rigidez toma el programa, es decir si el transforma la losa aligerada por una equivalente en losa maciza. El programa en sus ayudas dice lo siguiente:

" Slab Property(s) Edition

Slabs are idealized as horizontal rigid diaphragms. However, for converting automatically slab loads into span loads on adjoining beams and walls, the user can assign load properties to the individual slab panels. These load properties include an effective thickness for dead load computation, the superimposed dead load, the values of uniform live load, and effective thickness values for bending along each horizontal slab directions. The last two parameters are automatically calculated by EngSolutions RCB. Each panel may have different distributed loads and/or reinforcement direction.

For two-way solid slabs, the three effective-thickness values are all equal to the actual slab thickness. For joist-floor systems, the effective thickness for weight computation is that of an equivalent slab with the same weight per unit area. The effective thickness for bending in a given direction is the thickness of an equivalent slab with the same moment of inertia ¾and is calculated automatically. For example, for a one-way joist system with the joist oriented in the transverse direction, the effective thickness for bending in the longitudinal direction is the thickness of the upper flange (hf). Yet, the effective thickness in its transverse direction is the thickness of a slab (heff) ¾that in a width S¾ has a moment of inertia (S h3eff/12) equal to that of the T-joist section. The relative values of moment of inertia and panel plan-dimensions in the two directions, determines the distribution of the floor loads to the adjoining elements. However, in the current version of EngSolutions RCB, the load distribution is simply computed by tributary areas."

Es más conveniente calcular las cargas manualmente y colocarselas a las vigas y luego seguir el análisis normal. si esto se puede y no coloco una losa, al hacer el analisis sismico como se yo que el comportamiento es de diafragma rigido?. Acaso hay algun comando que permita conectar nudos esclavos a un nudo maestro?