Recent earthquakes devastated lives and destroyed a great stock of buildings. As a result, the earthquake-impacted regions incurred huge business and operation interruption losses. To minimize the business interruption losses through Performance-Based Seismic Design, there is an obvious need for a validated downtime model that would cover a large spectrum of building sizes and types. Building downtime consists of securing finances, mobilizing contractors, engineers and supplies, and the time to perform the actual repair, i.e., repair time. This study focuses on developing a model to characterize the repair time contribution to the downtime as an extension to FEMA P-58 Loss Assessment Methodology. The proposed repair time model utilizes the Critical Path Method for repair scheduling and realistic labor allocations that are based on the amount and severity of building damage. The model is validated on a significant sample of data collected through case studies from previous earthquakes, interviews with contractors, engineers, and inspectors. The proposed model also has a capability of scheduling resources to meet resource limitations that can either come from labor congestions or from a surge in demands following a disaster. The proposed resource scheduling method provides an efficient way of reducing the number of workers during labor congestions while minimizing its effect on the project duration. The final outcome is a realistic estimation of repair time associated with an earthquake.
|Commitee:||Arboleda-Monsalve, Luis G., Star, Lisa|
|School:||California State University, Long Beach|
|School Location:||United States -- California|
|Source:||MAI 55/06M(E), Masters Abstracts International|
|Keywords:||Downtime, Earthquake engineering, Performance based design, Repair time estimation, Resiliency, Structural engineering|
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