The period of an earthquake is not related to the intensity. The richter scale measures the amount of energy released during the seismic event. The period measures the length of the S wave. These are unrelated and independent of each other.
If you are looking for design values see the ASCE7...
I just worked on a two story office building that used precast shearwalls. One of our engineers had a problem with shrinkage of the concrete panels. So to connect the panels for transfering overturning shear forces we embeded a steel plate with welded studs into each end of the panels. We...
I would check it as a flexible and rigid diaphragm and use the worst case loading for the resisting elements. I had a mezzanine level concrete floor at a movie theater that was between 20-50 wide and about 200 feet long. I checked it as rigid and flexible and found that some walls were...
