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I am working on modelling of "Nicholson's Obelisk" (located in Taxila city) in SAP2000 for identification of its dynamic characteristics and mode shapes as well. This is how structure looks like. This structure is made up of Granite stones only. I haven't modeled a "Solid model" before, I have been trying to model this structure for past few days but have been unable to model it. Problems I am facing are following: 1- In SAP2000 which section property should I use for modelling this structure? Should I consider a wall section or slab section? 2- Should I opt for some other software instead of SAP2000? 3- How can I model the tapering of the structure in software? After getting fed up using SAP2000 for modelling, I tried ETABS for modelling base of the structure but the structure didn't read any object and this is the error displayed But when I modeled the base in SAP2000, this was what I got I have to submit this model by Monday and it's last deadline, so any sort of help regarding modelling of this structure would be highly appreciated. Let me know if you have want more information concerning this structure. Thanks.

HI EVERYONE, I need to know that how to model a beam in etabs, when slab on both sides of it is at different levels? for reference section of Beam is attached. Second question is, in this case do we need some special detailing if yes then what is it. THANKS

Can we model a deep beam in ETABS by simple frame element? If not then please explain the other way.

I am having problem to draw a two grid system in SAP v.14 . I want to draw one X-Y plan system with cylindrical system but SAP shows only one system at a time?