Seismosoft | Earthquake Engineering Solutions

Hi,
when I start the analysis (pushover or IDA) the program gives me the following warning "zero diagonal terms" for some points of the structure. They Are the points of the dummy column that I use to simulate the P-D effects.
Depends on what? how can I solve the problem?

However, the program ...

Hi there,
I'm making an IDA analysis with 9 amplification factors and output step equal to 1. The file that is generated is about 1800 Mega.
I have to read the maximum axial deformation "dl" for 40 elements.The model is very big.
The problem is that to read "dl" the program spends 10/15 min.
Is ...

Hi Behnam,
I will study the paper as soon as i can.
I will check the strain hardening parameter to chang the the buckling strength value.

Kind regards,
LuCanic

Hi Behnam,
Thank you for your reply.
1) I have carried out the analysis of eigenvalues, and the model is ok
2) I have used structural nodes for eccentricity
3) Your model is similar to mine, I'm studying to understand the differences.
I want to ask you one other thing.
On the same model I'm doing ...

Hi,
I used InfrmFBPH for the braces, and i used a "link" element at the ends of the braces with low rotational stiffness to simulate the cinematic hinge.

Hi there;

I am running pushover analysis on a ten story steel structure with concentric brace frame V-inverted (chevron-type). To model the instability of compressed brace I introduced an eccentricity at the middle of the brace. The value of this eccentricity is approximately 11 mm (for all brace ...

Hi seismosoft support,
thanks for the answer.
My intent is to model an hinge between column and beam through the element "link", but when I run the analysis I get moments of nodes.
How can I solve the problem?

Dear seismostruct support,

I'am working on two-dimensional steel structure (Plan x-z), I have to consider the internal constraints between beam and column as a hinge. What parameters should be blocked?