bridge modelling

mohamad_nazari · Post by **mohamad_nazari** » 17 May 2015, 10:49

dear group
I have a project about bridge analysis . it has 4 simple spans with continuos concrete deck . do you have any refrence or clip about how to modelling the bridge in seismo struct?
Thanks

huffte · Post by **huffte** » 17 May 2015, 16:21

This is a very wide open question, mohamad_nazari. I would offer that, generally speaking, spans should be modeled with no less than 4 elements and pier columns with no less than 2 or 3 elements, depending on height relative to span length. Often, the superstructure - deck and girders - may be modeled as an elastic element possessing the properties of the composite section. Inelastic, force-based, elements are a common choice for the pier columns. Link-type elements are many times found suitable for bearing devices, isolation or otherwise. These comments are general and clearly have exceptions, but perhaps they may get you thinking in the right direction for your particular case. Best of luck.

mohamad_nazari · Post by **mohamad_nazari** » 18 May 2015, 20:31

Thank you huffte

mohamad_nazari · Post by **mohamad_nazari** » 18 May 2015, 20:36

I saw a clip in youtube about it but this clip was inadequate.I need more details

z.gronti · Post by **z.gronti** » 19 May 2015, 09:19

Dear Mohamad,

The Seismosoft's video "How to create a bridge model", https://www.youtube.com/watch?v=T3DZSLtYkRs, is just indicative of bridge modeling, and of course cannot cover all the cases.

Could you be more specific on the details that you need so that we can help you with your project?

mohamad_nazari · Post by **mohamad_nazari** » 19 May 2015, 20:31

Dear friends
I realy grateful for your guidence . I saw it . As soon recieving the architectural plan of the bridge, I will ask with more details.
Thank you

ali_hssn · Post by **ali_hssn** » 24 May 2015, 12:14

Dear all,
I have academic license, and I want to model an isolated bridge, but I don't know that this license provides my work or not.
I need to model base isolator with SMA wires, model a bridge and Time-history analysis.
Thank you

fakharifar_mostafa · Post by **fakharifar_mostafa** » 24 May 2015, 18:03

Dear ali_hssn,

I don't think you should have any problem modeling your bridge with SMA isolators. The academic license should suffice for your modeling purpose. The only portion that I think is unavailable in academic license is the Building Modeller module. Good luck.

z.gronti · Post by **z.gronti** » 25 May 2015, 08:26

The only difference between the academic and the commercial version of SeismoStruct is the Building Modeller facility. All the other features are availiable in the academic version also.

ali_hssn · Post by **ali_hssn** » 11 Oct 2015, 08:48

Hello,
How can I model SMA wires in bearings that I've modeled as an link element?

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