In the case of a static calculation of a structural model, one can verify the model by checking the applied and reacting forces to be equal zero.
I would like to adapt the same principle for a structural model with a response spectrum as an input.
Is it correct to do the following: 1) perform a frequency extraction procedure to obtain 90% of the eigenmodes contributing to the mass and rotational inertia. 2) calculate the mass of structure being excited and multiply it by the peak acceleration amplitude given in the response spectrum, eg 20g. 3) its not clear what this step should be... is there something I can do with the modal participation factors to help me calculate the total reaction load?
Any suggestions will be welcome.