Hi. I am working on a steel structure and i have some issues with the seismic loads.
That are the flexure MZ diagrams for the pure seismic load case in X direction (longitudinal).
It caught my attention the results for the beam element marked in green.
The masses were defined as follows, for X,Y,Z:
If i delete the masses in Y i don´t observe this problem anymore.
And i don´t understan if this is correct, because the response spectrum is defined for X direction:
In anycase, i don´t undestrand either why i have this problem in the green beam and not in the purple beam, considering that the loads are exactly the same.
Also, the resultant base shear shows significant differences, depending if the Y masses are considered or not.
I appreciate any help.
Thanks!
Cruce Av A_Rev B1_EO_con_masa_Y.stdCruce Av A_Rev B1_EO_sin_masa_Y.std
One model has the siemic masses in Y and the other doesn´t