Double Web Plate Girders
Double Web Plate Girders
(OP)
Is it possible to model double web plate girders in Risa?
I have been doing some hand calculations to determine my bending capacity in a double web plate girder. I used a structural analysis software used in the offshore industry (SACS) that has the ability to model double web plate girders to confirm my results. The software is giving me a higher capacity than I have computed. I wanted to use RISA to confirm my findings, but do not see an option for double web pate girders. Is it possible to model in Risa 3d?
I have been doing some hand calculations to determine my bending capacity in a double web plate girder. I used a structural analysis software used in the offshore industry (SACS) that has the ability to model double web plate girders to confirm my results. The software is giving me a higher capacity than I have computed. I wanted to use RISA to confirm my findings, but do not see an option for double web pate girders. Is it possible to model in Risa 3d?





RE: Double Web Plate Girders
Alternately, you could use a user defined wide flange and use a web equal to double the thickness of one web.
Either way, you will need to manually override the relevant section properties (A, I, r, etc.) to match that of your actual beam.
If you are looking for stresses, this could work. If you are looking for AISC unity checks, I think the user defined wide flange would give you the closest results and be conservative, I believe.
RE: Double Web Plate Girders
RE: Double Web Plate Girders