multi support seismic excitation
multi support seismic excitation
(OP)
Hi, would you please tell me how to define different acceleration time histories at different supports of a bridge model? I have sap2000 vergion 10.
Sap defines only built in ground acceleration,
can i:
1.integrate the accelaration twice to get displacement history
2. assign joint displacement=1
3. in the anlysis case, apply the function resulted in 1. as the load is the one defined in 2
??
Please help me
yasmeen
Sap defines only built in ground acceleration,
can i:
1.integrate the accelaration twice to get displacement history
2. assign joint displacement=1
3. in the anlysis case, apply the function resulted in 1. as the load is the one defined in 2
??
Please help me
yasmeen





RE: multi support seismic excitation
RE: multi support seismic excitation
Also, if you have displacement data, you could assign joint displacements under a separate static load case to your restraint points, then define a time history function with multipliers to those static joint displacements as a function of time, and define an analysis case using that time history function with the load case which you used to assign the restraint joint displacements.
You could assign the joint displacement to equal 1 and define your TH function to multiply that as a function of time.