Seismosoft | Earthquake Engineering Solutions

<t>Support Team<br/>
<br/>
Hello<br/>
<br/>
Thank you for your e-mail. it was helpful.<br/>
<br/>
To get a Hysteresis curve with the degrading stiffness,<br/>
I had to (lower) the limiting values set for concrete crushing criterion and reinforcement yielding criterion, from the Performance page. <br ...

<t>Thank you Tim<br/>
<br/>
But I am loading the structure with El-centro, 180-ground acceleration, with max PGA = 0.31g. <br/>
<br/>
So, Yes, the structure is loaded beyond the elastic range, and<br/>
if I magnify the load (say by 1.5), numerical instability occurs because of severe distortion of ...

<t>Hi<br/>
the resulting Hysteretic curve I get for a reinforced concrete structure doesn't look like the typical ones in the published papers. <br/>
i.e. the curve is not degrading as it should look. Its stiffness, however, remains the same!<br/>
<br/>
I shifted to a different constitutive model ...

<t>Hi<br/>
<br/>
I am using the 'Delay' command for the 2ed curve but<br/>
I still get the error message(end of time-history stages should<br/>
be within the curve range).<br/>
I use (0 to 25 sec) stage for each curve. I also tried<br/>
both ranges(0 to 25) and (25 to 50). I also tried <br/>
the ...

<t>Dear Seismosoft Support<br/>
<br/>
Thank you for your e-mail. My record is a 50 seconds long Ground acceleration with 0.005 time step (that is 10000 steps). So Seismo will take it in 2 records.<br/>
<br/>
So, I need to apply the two-nodes choice with rigid link. This requires a 0 start time for ...

<t>Hi<br/>
I am trying to use more than one (Time-History curve) in my Dynamic analysis problem.<br/>
Therefore, I need to write a new starting time on the (Analysis Start Time) to begin a new (Time-History Stage).<br/>
<br/>
The problem is that the (Analysis Start Time)box can not be activated on ...

<t>Dear hashemian<br/>
There are many things that can cause this difference in displacements. Your input of material properties( strength, direction of cross section of members(x&y)). If you have different orientation of the members cross sections, you would get different answers.<br/>
Another ...

<t>Hello<br/>
I have two questions:<br/>
I need to analyse a structure subjected to some Ground acceleration of 50 seconds. Seismostruct takes only half of the record. How could I extend the analysis to take the complete record file?<br/>
<br/>
secondly; it is referred in the Help, (Global Response ...