Seismosoft | Earthquake Engineering Solutions

Hello

I transferred my model from seismobuild to seismostruct to conduct inelastic dynamic analysis. The basement nodes are considered as fixed supports. I insert the seismic events at these nodes (as acceleration) and when the analysis is finished i see that these fixed supports have ...

Hello.

I would like to ask about the basement at seismobuild. If i use as a floor to be basement what are the assumptions made by the program? Are some nodes restricted ; The mass of the elements of the basement are not zero though. Must i place shear walls at the perimeter or it is not required?

Now i also see that the shear capacity changes a lot depending on the direction of the seismic force for elastic dynamic analysis. Specially for a shear wall its shear capacity ranges from 1316 to 534 kN for the strong axes and from 200 to 62 for the secondary axes. Why is this happening? The shear ...

Hello seismosoft team.

I face a problem when calculating the shear strength of columns. I select columns and see that the shear capacity of the member (the reinforcement is the same across the member) is lower at the bottom of the member than at the top. The bottom of the member has more axial ...

Hello Seismosoft team

When i see the displacements of the seismic analysis (response spectrum analysis, lateral force method) must i multiply them with the seismic factor q (or this process is already done by the programm) ?

Dear Seismosoft team

During the Elastic (equivalent) static analysis i understand that the programm calculates the eigenperiods from eigenvalue analysis. So in each direction (x,y) the total (base) force is Fbx=m*λ*Sd(Tx,ζ) and Fby=m*λ*Sd(Ty,ζ), where Tx and Ty are calculated through eigenvalue ...

Hello Seismosoft team!!

i)Can i see the total shear force of each floor during the response spectrum analysis?

ii)Also, according to KANEPE

''The inelastic static method is applied in buildings wherein
the effect of higher modes is not significant.
In order to verify this assumption, an initial ...

I understand that the capacity design considerations must always be checked even in old buildings where the capacity design was not actually in use. So the only way to deal with this is using q=1 (elastic actions). We use q=1 for performance level B Life protection. At the table 4.1 it says we can ...

Hello.
So this problem of stability occurs only when we use fiber modelling which is the default in SeismoBuild as you mentioned. When we use hinge modelling (according to KAN.EPE ) we automatically have a decrease to 20% so that's not the case. What exactly do you mean <the program does not ...