How to increase the Modal Mass participation ratio
How to increase the Modal Mass participation ratio
(OP)
Hi,
In seismic design, it is required to have a mass participation ratio of 90%+. My model has 75%, what should I do to increase it ? What exactly does it means?
Any help would be appreciated
In seismic design, it is required to have a mass participation ratio of 90%+. My model has 75%, what should I do to increase it ? What exactly does it means?
Any help would be appreciated





RE: How to increase the Modal Mass participation ratio
RE: How to increase the Modal Mass participation ratio
Take a look at the modal mass participating ratios to see if you have a lot of modes with low modal mass.
If not, try to bump up the number of modes as kikflip suggests.