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Title: Fragility-based sensitivity analysis framework for load paths subjected to wind hazards
A framework is presented for evaluating the sensitivity behavior of parameters in a structural load path with respect to wind hazard analytical fragilities. A preliminary analysis applies the framework to a vertical light wood-frame load path. A variance-based sensitivity analysis method is employed to compute first-order sensitivity indices of all input parameters on the basis of load path system resistance, fragility median, and fragility standard deviation. The results indicate that a sensitivity analysis predicated on fragility median provides a reasonable description of load path parameter influence and may serve as a useful complementary tool alongside traditional load path fragility approaches. The framework can be useful for identifying which fragility model parameters are most essential out of a broader suite of possible parameters, and for offering guidance to reconnaissance efforts for focusing on the most influential perishable data to capture following extreme hazard events.  more » « less
Award ID(s):
1944149
PAR ID:
10450668
Author(s) / Creator(s):
Date Published:
Journal Name:
16th International Conference on Wind Engineering
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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