Ashok Sinha Karanam
Structural
Hi,
To validate SAP2000 trail version v14.2.4, I have created a simply supported beam and assigned a pointed frame-load at its mid span. I got certain displaement, x1, which is precisely matching the value WL3/48EI.
Now I had meshed the beam using a maximum mesh size of span/100 and then assigned a joint load of same value at its mid point and rerun the analysis. To my surprise I got a different midspan deflection x2 which is slightly higher than x1 and the difference between x1 and x2 is considerable.
I rerun the anlaysis with different solvers and different mesh sizes, and also instead of meshing I divided the frame into multiple frames, but the result didn't change.
Can anybody explain the reason behind this.
To validate SAP2000 trail version v14.2.4, I have created a simply supported beam and assigned a pointed frame-load at its mid span. I got certain displaement, x1, which is precisely matching the value WL3/48EI.
Now I had meshed the beam using a maximum mesh size of span/100 and then assigned a joint load of same value at its mid point and rerun the analysis. To my surprise I got a different midspan deflection x2 which is slightly higher than x1 and the difference between x1 and x2 is considerable.
I rerun the anlaysis with different solvers and different mesh sizes, and also instead of meshing I divided the frame into multiple frames, but the result didn't change.
Can anybody explain the reason behind this.