Seismosoft | Earthquake Engineering Solutions

zthaer, When using lumped masses distributed/spread throughout the plan or floors of a given building, it tends indeed to be appropriate to define such concentrated masses only in the translational degrees-of-freedom (typically only the horizontal ones, since seismic vertical vibration can be ignore...

khan0099, Yes, a 2D analysis will indeed be faster than a 3D one. However, naturally, if your structure is not regular in plan and/or your seismic input is bidirectional, then your 2D simplification will inevitably introduce errors. I suggest that you run some experiments with small sub-sets of your...

Hi zthaer, I normally use the following features of the program to ease node/element selection: - Cut X-Y Planes, in order to visualise only nodes/elements e.g. between z =2 and z=4 - in the 'Nodes' module, click on the Z-column, so as to group together all nodes with e.g. z=3 - use 'Add to Group' f...

zthaer, A textbook on basics of structural mechanics or of structural analysis should include the type of background info you are looking for. There are a few of these included in the Bibliography page of the Help/Manual of SeismoStruct, but I have actually never checked if they include the descript...

bakhtiyar, Is your query related to SeismoSignal or to SeismoStruct? As huffte tried to explain, obtaining in SeismoSignal the period elongation of a SDOF system is a somewhat peculiar concept, given that in SeismoSignal the period of vibration of the SDOF systems (that are subjected to dynamic anal...

khan0099,

Is there a particular reason why you wish to force a 2D analysis in SeismoStruct? Why do you not simply build a 3D model of your structure in SeismoStruct?

Best,

Rui

Dear Hossein Golkarfard, With regards to the academic license, I believe that all you need to do is to wait for the email with the license key to arrive, noting that this will not necessarily arrive in intantaneous fashion, given that Seismosoft receives tens of similar requests every day, and that,...

Hi hendrasusilo17, The different duration parameters that you mention were not necessarily developed for the purpose of truncating accelerograms to use in nonlinear dynamic analysis. Indeed, as you will readily gather from a quick read of some of the papers in which such duration parameters are prop...

Hi Milena, In order to achieve your goal (i.e. to model a diagonal brace with a viscous damper), I would most likely introduce, at one of the ends of your brace, a link element featuring a response curve whose hysteretic behaviour reproduces that of the damper in question (in SeismoStruct Manual/Hel...

samsami,

As a complement to Zoi Gronti's response, I suggest you to click on 'Board index', then type "out of memory" in the 'Search..' box, and read the many past discussions on this specific topic.

Best,

Rui