![seismosignal displacement time history seismosignal displacement time history](https://ascelibrary.org/cms/asset/9ac5b3bc-564f-4a64-a77d-aa594821ba2b/gmeng-6321f06.gif)
Rayleigh $alphaM $betaKcurr $betaKinit $betaKcomm obtain the time variations of the ground velocity and ground displacement. Set betaKcurr 0 # K-proportional damping +beatKcurr*KCurrent The ground motion time histories used to represent an intensity.
![seismosignal displacement time history seismosignal displacement time history](https://user.eng.umd.edu/~austin/aladdin.d/graphics/my-chapter6-fig28.gif)
SEISMOSIGNAL DISPLACEMENT TIME HISTORY CODE
Shouldn't there be some acceleration values in x-direction ? Am I doing it correctly ?įollowing are the lines of the code specifying the sp constraint and displacement time-history. acceleration, peak ground velocity, and duration to match a design response spectrum. But, the acceleration in x-direction for these nodes are showing zero whereas some acceleration values are showing in y-direction for these nodes. After running the analysis, i get the displacements of nodes 3 and 4 same as that in the file "displacement.dat". I am using sp command to apply displacement timehistory to the top nodes of a single bay single storey frame (Bottom nodes (fixed) - 1 and 2, Top nodes (free) - 3 and 4).