A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A numerical model for wind-borne compact debris trajectory estimation: Part 1 – Probabilistic analysis of trajectory in the proximity of tall buildings
Highlights ► Impact probability of wind-borne compact debris against building façades was investigated. ► Relevant random quantities were selected to estimate the trajectories. ► “Universal Probability Curve” was evaluated for two-dimensional flight. ► “Iso-probability Impact Contours” were proposed for three-dimensional flight.
Abstract This paper describes the development of a numerical algorithm for investigating the probability of wind-borne compact debris, impacting on the vertical façade of tall buildings. A uniform wind field with constant velocity was employed; turbulence effects were neglected. The trajectory of compact debris was estimated by solving the three-dimensional (3D) equations of motion of the object, immersed in uniform wind field; simulation results were compared to experimental data, derived from literature. Random parameters were selected to estimate the trajectory and to derive “Iso-probability Impact Contours”, using Monte Carlo simulation. These contours describe the probability associated with “randomly flying” debris, as they impact against a cladding on the vertical façade, conditional on the initial position of the object relative to the structure. These contours were developed for two different cases, “Quasi-2D” and “Fully 3D”, to account for wind directionality. Moreover, a “Universal Probability Curve”, describing the probability of impact for compact objects against the façade of a benchmark tall building, was developed in two-dimensional (2D). It was proven that this curve is universal and can be used independently of wind velocity.
A numerical model for wind-borne compact debris trajectory estimation: Part 1 – Probabilistic analysis of trajectory in the proximity of tall buildings
Highlights ► Impact probability of wind-borne compact debris against building façades was investigated. ► Relevant random quantities were selected to estimate the trajectories. ► “Universal Probability Curve” was evaluated for two-dimensional flight. ► “Iso-probability Impact Contours” were proposed for three-dimensional flight.
Abstract This paper describes the development of a numerical algorithm for investigating the probability of wind-borne compact debris, impacting on the vertical façade of tall buildings. A uniform wind field with constant velocity was employed; turbulence effects were neglected. The trajectory of compact debris was estimated by solving the three-dimensional (3D) equations of motion of the object, immersed in uniform wind field; simulation results were compared to experimental data, derived from literature. Random parameters were selected to estimate the trajectory and to derive “Iso-probability Impact Contours”, using Monte Carlo simulation. These contours describe the probability associated with “randomly flying” debris, as they impact against a cladding on the vertical façade, conditional on the initial position of the object relative to the structure. These contours were developed for two different cases, “Quasi-2D” and “Fully 3D”, to account for wind directionality. Moreover, a “Universal Probability Curve”, describing the probability of impact for compact objects against the façade of a benchmark tall building, was developed in two-dimensional (2D). It was proven that this curve is universal and can be used independently of wind velocity.
A numerical model for wind-borne compact debris trajectory estimation: Part 1 – Probabilistic analysis of trajectory in the proximity of tall buildings
Moghim, Farid (author) / Caracoglia, Luca (author)
Engineering Structures ; 38 ; 153-162
2011-11-14
10 pages
Article (Journal)
Electronic Resource
English