I'm a little confused...I want to know if we can use PSDM (I mean linear regression between IM & EDP) with IDA data or just it is suitable for unscaled records analysis. If we can use it for IDA, could we use equations that suit cloud analysis or are there any different equations that should be considered?
In general, which method of fragility assessment is accurate more when we have IDA data? lognormal or likelihood or if it's correct, PSDM with linear regression
Is it related to the type of structure? for example, I have an OCBF 2d frame with LRB isolators at the base level.
Thanks in advance to all who will help and participate in responding to my question
Yes, it is possible to use Probabilistic Seismic Demand Model (PSDM) in combination with Incremental Dynamic Analysis (IDA) for fragility assessment.
PSDM is a statistical model that estimates the probability distribution of the seismic demands (i.e., ground motion intensity measures) at a given site or structure. IDA, on the other hand, is a nonlinear dynamic analysis method that evaluates the response of a structure to a suite of ground motions at increasing intensity levels.
The combination of PSDM and IDA allows for the development of fragility functions that estimate the probability of exceeding a given damage state or performance level for a given ground motion intensity. This can be useful in earthquake engineering for assessing the seismic performance of structures and for informing decision-making regarding seismic risk management.
In summary, the use of PSDM in combination with IDA can provide a more comprehensive and probabilistic assessment of structural fragility, by accounting for the uncertainties in both the seismic demand and structural response.
Ma'Mon Abu Hammad Thank you so much for your answer dear Dr. Abu Hammad
- Badges
- Science topic
- Similar topics
- Counseling Psychology
- Confusion