Staad Input 6X3M WB.txt
I have to model a 6x3M weighbridge structure using plates and U beams. U beam is made using 'create user table' option. The structure is supported in all four corners with fixed support and load is applied on top plate. I have created mesh using plate element for top plate and beam element for U beam. The beam elements has been splited in such a way that these nodes are aligned with the nodes belonging to the top plate mesh. I have used master slave connections with the nodes at the beam center line as the master nodes and the corresponding nodes at the top plate as the slave nodes. Rigid option is used to define these master slave connections. The code used is IS800.
Same model I have simulated in solidworks and results are different. With solidworks, the results are more realistic.
My question is what could be the reason for the difference in results. Is there any parameter I am missing in staad model?
For us to provide a meaningful answer, please upload the model and mention which specific member number and results you are referring to and why you think these results are not realistic.
Thanks for the reply sir, I have attached the input file of the model. The maximum displacement is in node #964 which is 17mm in –Y direction. For analysis results I have used max von mises stress to compare with yield strength.
The maximum corner stress as shown in the ‘beam combined axial and bending stresses’ is coming around 300MPa (beam#2374). These corner stresses are just stress concentration points or they also show member failure. Also, the corner stress (von mises) at plate is more than 250 MPa (yield strength of material). And how can we reduce these corner stresses. Is there any way to check the FOS of member? Whereas in solidworks, the maximum displacement is coming around 5mm and maximum von mises stress is 161MPa which leads to FOS >1.5.
4617.Staad Input 6X3M WB.txt