dynamic wind 1

[bothul]

Hello,
I am trying to analyse a cable structure. They are affected very much by the wind. I would like to simulate a dynamic wind load.
If anyone has documentation about wind action and method of introducing dynamic wind load in SAP2000, i would appreciate it.
Thanks in advance!

 

[masomenos]

In order to simulate a dynamic wind load, you will have to obtain dynamic wind loading data from a wind tunnel study or some other measurement. With this data you would assign joint and/or lineal wind loads at different locations throughout your model and then define a time history function or multiple functions, and a time history case or multiple time history cases to be applied to these assigned loads.

Did your client require that you run a dynamic wind load? Because it's expensive to do dynamic wind loading.

 

[bothul]

thanks for the reply.
I have succeded in performing a dynamic analysis but there is something that is bothering me and that is ,,,how do i know it is correct?
My time history function is a function defined at every second and the length of the function is about 2 minutes. How do the values for the user defined parameters influence the results. How do these parameters have to be set in order to be sure about the results?

Thank you

 

[masomenos]

bothul, you don't give enough data to offer you much help. Where did you get your max loads? Did you assign the max loads as joint load and/or distributed line loads? Your time history functions would be typically be based on field measurements or wind tunnel data. You might want to read some books on structural dynamics