I’m researching the progressive collapse. In summary, I want to see what happens if I apply un displacement controlled de 1200 mm under a reinforced concrete frame to simulate the loss of one central column. i.e I want to redo one model of this paper (usefi et al, 2016). Specifically this model: Figure 1.
I already have my model, but it doesn’t give me the correct results as in the paper. this is the model I made: figures 2 and 3
as you can see, the results are not logical. I apply a downward load but it gives me positive displacement. and it seems that there is some problem with the analytical surfaces I think I’m making basic mistakes because I’m not sure if I’m applying the loading speed correctly.
Any suggestions, please?
Figure 1
Figure 2
Figure 3
- Training Expert asked 1 year ago
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Hi,
Your nonlogical results could have some reasons. From basic such as units of your inputs to how you modeled a quasi-static analysis. Refer to the link below. In this article, you will understand the quasi-static analysis and how to deal with it.
https://caeassistant.com/blog/speed-up-quasi-static-in-explicit-1/
https://caeassistant.com/questions/question/locally-unstable-problems-automated-stabilization
Also, it is worth it to check this link:
https://caeassistant.com/product/abaqus-for-beginners-structural-engineers-in-the-field-of-civil-engineering/
this will help you with your current problem and your future problems as well.
Best regards.
- Training Expert answered 1 year ago
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