OLE and CLE definitions

[rainandcm]

How to determine the return period of OLE (Operating Level Earthquake) and CLE (Contingency Level Earthquake)?

Do they vary based on different types of projects?

Thanks.

 

[Agent666]

I'm not familiar with the specific terminology you are using, but in most codes dealing with a probabilistic method of assessing the risk of an event occurring within a certain period, it will depend on the design life of the structure (i.e. 5 years vs 100 years for example) and the 'importance' of the building (i.e. consider an airport vs a residential house for example).

So yes the return period will more than likely vary based on different types of project.