NHERI-SimCenter/WorkflowRegionalEarthquake: rWHALE

Elhaddad, Wael; McKenna, Frank; Rynge, Mats; Lowe, John B.; Wang, Charles; Zsarnóczay, Ádám

doi:10.5281/zenodo.2554610

Cited by 2 publications

(2 citation statements)

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“…The portfolio of buildings is located in the San Francisco bay area, which is part of the San Francisco Testbed provided by SimCenter. 22 The Testbed data include some basic information about these buildings, including building height (number of floors), longitude and latitude, footprint, structural type, occupancy type, plan area, and year of construction. Footprints and building heights of these 15,836 buildings are shown in Figure 8.…”

Section: Building Informationmentioning

confidence: 99%

An asynchronous simulation algorithm for post‐earthquake functional recovery of interdependent infrastructure systems

You,

Wang,

Chen

2023

Earthq Engng Struct Dyn

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The seismic resilience assessment of infrastructure systems not only requires evaluation of immediate damages after earthquakes, but also estimate of functional losses during the post‐earthquake recovery process. Infrastructure systems are interdependent during post‐earthquake recovery. To accurately consider this interdependence in resilience assessment, many studies have adopted post‐earthquake recovery simulation methods. In this study, an efficient asynchronous simulation algorithm is proposed, which does not require synchronous checking of the states of infrastructure elements at each time step, but rather asynchronously derives the functional recovery time of each element based on its dependency relationships. This study proves that the time complexity of the proposed asynchronous algorithm is proportional to the scale of the infrastructure system and is independent of the time step size. Furthermore, a case study of post‐earthquake recovery of a portfolio of buildings considering safety cordon areas is used to demonstrate that the asynchronous algorithm can significantly reduce the simulation time of large‐scale infrastructure systems compared to synchronous algorithms.

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Section: Building Informationmentioning

confidence: 99%

An asynchronous simulation algorithm for post‐earthquake functional recovery of interdependent infrastructure systems

You,

Wang,

Chen

2023

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

show abstract

“…To calibrate the distributions of initial damage level and repair rate for the initially highly ranked components, we use the Regional Workflow for Hazard and Loss Estimation (rWhale) developed at the NHERI SimCenter [47]. Fragility functions and repair time distributions defined in HAZUS [36] are sampled based on the spatial distribution of peak ground acceleration given in [48] to obtain the distribution of initial damage states and repair times of buildings considered in this Case Study.…”

Section: Heuristic Upper and Lower Bound Searchmentioning

confidence: 99%