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Hi,Layla I'm also using PPGap material and truss for the gap between the decks in the bridge. And I want to get the pounding effects. But i feel confused to set the gap value and the original distance value between to nodes. Are they the same value or different? And how to set the value $fy properly...

Hi,have you solve your problem yet? I have been studying the PPGap material but I find it hard to kown how it works and how to set proper values. I'm using this material for the expansion gap in a bridge. can you give some suggestions? :D nicobu wrote: > Hi, > > I am trying to run a very simple scri...

hi,MJ i have a question here. when u use this line set accel "Series -dt 0.02 -filePath LADSPx3.8.txt -factor [expr ($gmf)*9.81]" have u modify ur earthquake wave record data through dividing them by the PGA in the record? I just want to know whether this file "LADSPx3.8.txt " is...

I tried many times,but this doesn't work. it ends with no converging.
It seems that it needs a best value to converge.

So I want to model a bridge with a 0.02m expansion gap , is this right to code like this?
node 1 0 0 0
node 2 0.02 0 0
uniaxialMaterial ElasticPPGap 1111 3E10 -2e10 -$gap
element truss 1 1 2 $As 1111

According to my understanding, $gap would be 1.0? thanks..

Thanks for the reply. I'm not sure if I get it correctly. If I set distance L= the difference in nodal displacements, then the gap can be 1. Is that right? BTW, is there any difference between the zeroLength element and truss when using the PPGap material? I try to use it for the expansion gap in th...

Hi,everyone! I want to use PPGap material and truss element for the expansion joint in the bridge, but I don't know how to set the gap value and the distance between the gap nodes. Is there any relationship between this two values? Thanks in advance. here is my code related:(m) # nodes of the link e...

Hi,have u found the solution yet? 'Cause I also want to use ppgap material and truss for the expansion joint in the bridge, and I don't know how to set the gap value and the distance between the gap nodes. Is there any relationship between this two value. Thanks in advance.