Probabilistic wind-borne debris trajectory model for building envelope impact risk assessment

Grayson, Michael Brian; Pang, Weichiang; Schiff, Scott

doi:10.1201/b11332-186

Cited by 1 publication

(1 citation statement)

References 3 publications

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“…The Debris Trajectory Module is driven by a three-dimensional (3D) probabilistic debris trajectory model is capable of providing relevant debris trajectory information (i.e., linear and rotational position, velocity, and acceleration) needed to track wind-borne debris and assess any impacts to the building envelope that may occur due to the debris flight. The probabilistic debris trajectory model was developed by the authors through Monte Carlo simulations that identified the appropriate coefficients of variation of the debris flow angles required to match wind tunnel test data (Grayson et al 2011;Grayson 2011;Grayson et al 2012). Figure 4 illustrates debris trajectories of a 4' x 8' x 0.5" (1.2 m x 2.4 m x 0.013 m) piece of roof sheathing with the same initial conditions produced by the 3D probabilistic debris trajectory model.…”

Section: Debris Trajectory Modulementioning

confidence: 99%

Framework for the Assessment of Building Envelope Failures Due to Hurricane Wind Hazards

Grayson

Pang

Schiff

2012

Advances in Hurricane Engineering

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This paper proposes a modular framework utilized to assess the risk of building envelope failures due to hurricane wind hazards. A component-based approach is taken to develop an integrated building envelope model that is based on previous research of individual component and system capacities. Key modules of the proposed framework include a wind-borne debris generation module and an impacttracking module that will interact with a hurricane simulation module capable of simulating synthetic hurricanes for various return periods and historical hurricanes. One major difference between the proposed framework and other risk assessment models is that the proposed framework is extremely flexible in allowing the user to define the building stock within the area of study, which will provide the user with the ability to investigate an unlimited number of "what if" scenarios. Another distinction of the proposed framework is that it is driven by a three-dimensional probabilistic debris trajectory model developed by the authors, rather than using damage curves developed from observed post-hurricane assessments or insurance claim data. Debris impact risk plots presented in a polar coordinate system are developed using the framework and can be utilized either pre-or post-construction to mitigate the damage to the building envelope of homes within a subdivision during a hurricane event.

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Section: Debris Trajectory Modulementioning

confidence: 99%