Modelling of single pile in Midas GTS
For the modelling of a single pile in MIDAS by means of Pile Beam Elements, how is the interaction with the adjacent ground considered?
Please see below a more detailed version of the query:
- A ‘pile beam element’ is created by applying a ‘pile/pile tip element’ function. No interface is supposedly required when creating such element. The question is: how does this element interact with the adjacent ground? If the way the pile behaves is set in stone depending on the load-displacement curve input, what difference does the adjacent ground make? Does it simply deform with the pile without restraining it?
- Also, the ‘function’ tool in ‘pile tip’ appears to be broken, as we did not manage to get it to work.
Thanks and regards,
Thanks N Regards,
MIDAS Global Technical Center
Please see our response on 2).
In the user manual (Chapter 4, Section 1.8) it states that a non-spatial displacement vs force/length function should be used to define the spring stiffness function at the pile tip. However, please see attached screenshot where a displacement vs force/length function has been input but the pile tip property will not reference it.
In a similar vein, I have found that if I try to use a displacement force function instead, it will be referenced by the pile tip property but, no base resistance will be mobilised when the model is run.
I have attached the
model with the two functions described for you to see for yourself.
|How to creat the interface for pile and retaining wall.pptx|
|Problem referencing pile tip function.PNG|
|Shard Pile Load Test coarse mesh bilinear base function.gts|