Search results for query: *

dear all a question about viscous damping in SAP2000 doing a time history analysis, can I take into account cross-coupling terms between modes due to non proportional (non-classical) damping ? I know SAP2000 accounts for NL coupling, but I don't want to model a hysteretic link, i have a story...

hi to all, only a question about current structural and seismic engineering practice worldwide in my Country, engineers usually design R/C structures using software that, once you've set geometry and material properties, make structural check and give you directly design drawings in this way...

hi to all, can anyone tell me if american seismic codes or standards limit the maximum coefficient of friction in sliding devices employed for base isolation? the NEHERP guidelines for buildings FEMA 273-274, 302-303 do not seem to limit the coeff. of friction, neither they prescribe any...

hi users, i've done a pushover analysis using the last 9.0.1 EDUCATIONAL version of sap2000 what happens is: when i plot the capacity curve in the ADRS format, no demand spectrum appear there's just my capacity spectrum (pushover curve) and the radial period lines, but no response spectra...

hi to all i am looking for a simple program that makes linear dynamic analysis of spring-mass systems with 2DOF or more, under free vibrations any suggestion?

hi to all, i have some excel sheets with formulas and macros written in italian under a version for windows if i open these files using an apple excel version on my MAC, the program do not recognize formulas and code lines written in italian let's say the function 'sum' in english corresponds...

Hi to all who can tell me the normalisation criterium Excel uses calculating the Fast Fourier Transform FFT(Sn), where Sn is a discrete signal? What i do to obtain the FFT amplitude is the usual evaluation of the complex modulus of the FFT complex array what i find is: the original signal...

Hi to all, gimme a hand please! I need to print a huge number of excel charts and add them on a paper, which may be done with MSWord is there any mean to create a macro that copies an array of charts from excel and paste them on a wordsheet in a printable and orderly fashion? thanks in...

hi to all i am looking for something that helps to draw symbols on a Word sheet i need to draw restraints, springs, deformed shapes and all the usual symbols of structural mechanics ain't anything working with MS Word (macro, components or whatever)? thanks ;-)

Shaking table problem i am investigating to which extent the feedback from the superstructure can influence the table motion does anybody know some references thanks

i am using a sap2000 7.12 nonlinear, i would like to know how to export the time history results the help message says: "Print Time History or Response Spectrum Plots or Tables To print the Plots display do the following: · From the Print menu, choose 'Print Graphics'. To print the...

hithere, any suggestions on how to design reinforcement with FRP i have: r/c 25x50 cm emerging beam, the slab thickness is 20cm no rotations are allowed at both endings span loading 3 t/m beam lenght 6m the existing reinforcement is only 50% than required thanks

who knows how to use an excel macro to launch an analysis program? i have to perform a parametric structural analysis, and i intend to create an excel sheet whith all the parameters data, with a macro that activates the structural program at each iteration and also copies the output at each...

i am performing a Nonlinear analysis of a 3d base isolated building, and have some troubles with the output how can i include in the output the same TIME HISTORY TRACES the program plots you in a window? i'd need to export a(t),v(t), s(t),F(t)...and so on and open them with excel thanks!

hi, does anybody know if there is any way to automatically launch a sap2000 analysis from another program? thanks a lot

hi, does anybody know if there is any way to automatically launch a sap2000 analysis from another program? thanks a lot

hi, does anybody know if there is any way to automatically launch a sap2000 analysis from another program? thanks a lot

hi, i got the FEMA 273 FEMA 274 commentary, i would like to know if there is a more up to date code for seismic design in the US (expecially for seismic isolated structures) can anybody give me a list of the codes and guidelines adopted in the US for seismic design or more in detail for...

Where can i get the AASHTO standard seismic specifications ? is there any place where one can download the text? i am also looking for the New Zealand seismic code thanks