Hi
I am using IBC2006 on a project and have a newbie question
I have defined the seismic parameters and converted the nodal and member loads into *weights* to go with the selfweight that I need to. So how do I convert my floor/area loads into *weights* also needed for inclusion in the seismic mass?
I would appreciate anyone's help. Thanks
Just like nodal loads or member loads can be defined as JOINT WEIGHTs or MEMBER WEIGHTs, floor loads also can be defined as FLOOR WEIGHTs as shown next.
SELFWEIGHT 1
JOINT WEIGHT
17 TO 48 WEIGHT 2.5
49 TO 64 WEIGHT 1.25
FLOOR WEIGHT
YRANGE 9 11 FLOAD 0.5
YRANGE 19 21 FLOAD 0.3
You can do it through the GUI as well using the Floor Weights option within Seismic Definition.
Answer Verified By: Matt Goswell
Mr. Sye,
in the seismic definition, do we need to put 1 beside SELFWEIGHT? or SELFWEIGHT alone? because in the STAAD Pro technical reference , there is no 1 beside the SELFWEIGHT . . . . please explain ..
Hi Kyut,
The number 1 denotes the factor , i,e SELFWEIGHT 1 means that the selfweight multiplied by factor 1.
Hi Shany,
I tried using SELFWEIGHT 1 in my seismic definition, but there's an error in the run analysis. When I removed the 1, there's no error. So in conclusion, there is no need of the factor 1 when we are in the seismic definition. But the factor 1 can be use when we are in the Load Cases, eg. Seismic in X - Direction and Seismic in Z - Direction . .
Regards,
Kyut
my comment above was based on STAAD Pro 2005, FYI