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Thanks for the quick and clear responses. The column end releases to fixed-fixed was fairly obvious and I should have done that originally. That being said, I tried both methods(Z or X reactions a the col tops (for ones not in braced lines), as well as just adding a rigid diaphragm) as suggested...

Thanks for the responses jayrod12 and JoshPlumSE, A 1.5" deep steel roof deck would be the diaphragm. I did not model it or connect the beam column gravity system to a diaphragm yet as I was trying to get the model working for gravity first. Josh, to your 1) how would I connect the beam column...

Thanks Josh, I did not realize there was a specific Risa thread, as suggested by another user in my other post. I have deleted the other thread and included your previous response......... 1) The beam column gravity system between column lines b-1 and c-1 is unstable in the X direction. It has...

Hi there, I am new to modeling in Risa 3d. I have made this model of a small braced frame building. Typically I would model each lateral line in 2D and asses the deflection/strength that way. Our office has recently added RISA 3d so I thought I would model the whole structure. However, I am...

I am getting some strange results with my concrete column shear reinforcing. Concrete design is returning 5192mm2/m weak axis shear reinf and 8147mm2/m strong axis shear reinforcing. This is after specifying confinement bars with 20M bars @300oc when defining the column frame section. Does...

Great, thanks EZBuilding, I believe this solved the issue. Steps followed, Select all walls, assign/shell/wall auto mesh options, switched from default to auto rectangular Thanks again!

Thank you for the quick response, Im not sure I understand what youre saying though... "Mesh the wall on the ground floor so that the edges of the wall below matches with the edges of the wall above" - does this mean copy the walls above to the bottom floor, but delete the beams and fill in...

Hi there, I am modeling a multi story building with concrete bearing/shear wall. The window openings are inconsistent from 2nd to ground floor so ive entered grids and drawn in the walls and openings in the correct locations. However, when I run the model, the base of the 3rd floor wall does not...

I have modeled a 30' transfer slab in SAFE 16 with gravity loads (from a 4 story building above). The gravity loads have been input by assigning loads to null beams and areas. However, when running the analysis, it produces some rather large joint reactions in the x and y direction. This seems...

model attached, also in the "wall panel editor" the load toggle doesnt seem to work for me either. Are the loads not being applied to the panel, even tho they appear in the wall panel loads...

Hi there, I have been playing around with Risa3d for wood shearwalls. I am having trouble getting distributed axial load to transmit into the studs. I have tried applying the udl directly to the top of the wall panel, as well as creating a dummy member as recommended in this tutorial...