dear honorable engineers,
I am learning staad.pro on my self.please someone write to me how can I assign seismic load(both static and dynamic) in staad.pro especially through is1893.Please tell me about seismic defination. When we assign self weight, joint weight,member wt,floor wt in seismic defination, shall we again assign them in Load Case Details?or What is actual meaning?
thanks in advance
STAAD Pro Training Video on Earthquake Load Analysis in STAAD Pro
Dear Sir,
I have issued regarding repeat load command for seismic loading.
Sir, i have two seismic loading in x-dir. So, for two seismic loading i have created two primary load cases (say 1 & 2) and applying the load. After that i have created one more load case (say 3) and add both loading by using repeat load command.
But when i saw the displacement of the structure for load case 3, the displacement show only 2 mm While for load case 1 & 2, the displacement is show 42 mm.
So, sir plz suggest me the solution.
Thanks with best regards,Haresh Belkhade.
Helo. Can any one please give me the exact explanation on defining and adding seismic loads, liveload and dead loads? Since in various tutorial videos on staad pro, shows.various methods of adding load..in some videos, they define seismic loads and add self weight, member weight and floor weight under siesmic definition. While other simply add self weight under seismic category and add live load and dead load in load cases.that is what made me confused. I would like to get the suitable and accurate way of assigning various loads..
When you are using equivalent static seismic load generation you may add selfweight, joint weight, member weight etc. as part of the Seismic Definition and then these weights are used by the software to calculate the total seismic weight which is multiplied by a coefficient to calculate the base shear. As an alternative approach, you can define Reference Loads (of type Mass) to include all the loads that you would want to consider for calculating the seismic weight. In this approach you would NOT include any weights as part of the seismic definition itself. The software would automatically calculate the seismic weight using the loads defined within the mass type Reference Load.
No matter which method you choose from the above to define the seismic weight, you would still need to define dead load, live loads as separate load cases because whatever you are defining as part of the Seismic Definition or as part of the Mass Type Reference Loads, are solely used by the software for the seismic load generation.
Hi, I would also like to know if we need to create 2 Earthquake cases in two direction (Eg For +x with factor +1 and for -x with factor -1, similar for z) and two cases for response (rs+x and rs-x, and how to crate =/- direction for RSX) OR does the software concider it??
Secondly if we need to create +x,-x,+z,-z how to balance base shear?
Please do reply