Modelling Structural Failure with Finite Element Analysis of Controlled Demolition of Buildings by Explosives Using LS-DYNA

Michaloudis, Georgios; Blankenhorn, Gunther; Mattern, Steffen; Schweizerhof, Karl

doi:10.1007/978-3-642-04665-0_37

Cited by 7 publications

(6 citation statements)

References 6 publications

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“…Las Vegas) in the built environment (Michaloudis et al 2010). Lastly, these currents can be defined as shear flow driven by a shear stress, τ, which from the Prandtl's theory corresponds to turbulent stress, τ 0 , (Prandtl and Tietjens 1934) as…”

Section: Accepted Manuscriptmentioning

confidence: 99%

On the interaction between shear dusty currents and buildings in vertical collapse: Theoretical aspects, experimental observations, and 3D numerical simulation

Doronzo

Tullio

Pascazio

et al. 2015

Journal of Volcanology and Geothermal Research

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Section: Accepted Manuscriptmentioning

confidence: 99%

On the interaction between shear dusty currents and buildings in vertical collapse: Theoretical aspects, experimental observations, and 3D numerical simulation

Doronzo

Tullio

Pascazio

et al. 2015

Journal of Volcanology and Geothermal Research

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“…Poon et al [8] and Jiang et al [9] used Perform 3D, a commercial software package widely used for the design and nonlinear analysis of structures, to evaluate the performance of super-tall buildings in earthquakes. Among others, Lu et al [10] and Michaloudis et al [11] used ABAQUS and LS-DYNA for nonlinear analyses of seismic capacity of buildings aimed at providing a guideline for practical designs. Despite these research efforts, limited work is available to examine and compare the existing numerical simulation results specific to super-tall buildings, which is a very important piece of information for validating the rationality and accuracy of these simulations.…”

Section: Introductionmentioning

confidence: 99%

“…Research to date indicates that numerical simulation is effective for nonlinear seismic analyses of such buildings [1][2][3][4][5][6][7][8][9][10][11], but most of the simulations were performed using various commercial finite element (FE) software packages. For example, based on the commercial FE code of MSC.Marc [12], Lu et al [1][2][3] proposed a numerical model integrating fiber-beam elements, multi-layer shell elements and an element deactivation technique for collapse simulation of super-tall buildings induced by extreme earthquakes.…”

Section: Introductionmentioning

confidence: 99%

A shear wall element for nonlinear seismic analysis of super-tall buildings using OpenSees

Xie

Guan

et al. 2015

Finite Elements in Analysis and Design

282

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a b s t r a c tNumerical simulation has increasingly become an effective method and powerful tool for performancebased earthquake engineering research. Amongst the existing research efforts, most numerical analyses were conducted using general-purpose commercial software, which to some extent limits in-depth investigations on specific topics with complicated nature. In consequence, this work develops a new shear wall element model and associated material constitutive models based on the open source finite element (FE) code OpenSees, in order to perform nonlinear seismic analyses of high-rise RC frame-core tube structures. A series of shear walls, a 141.8-m frame-core tube building and a super-tall building (the Shanghai Tower, with a height of 632 m) are simulated. The rationality and reliability of the proposed element model and analysis method are validated through comparison with the available experimental data as well as the analytical results of a well validated commercial FE code. The research outcome will assist in providing a useful reference and an effective tool for further numerical analysis of the seismic behavior of tall and super-tall buildings.

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“…Michaloudis G proposed that when buildings are no longer in use, they need to be demolished in a controlled manner, and the use of controlled explosives is a highly efficient method. To ensure the safety of surrounding buildings and traffic, it is necessary to reliably predict the specific collapse dynamics caused by the explosion, which requires a reliable simulation of the entire collapse process [4]. Pourasil and others discussed the demolition methods at the end of a building's life cycle, especially the use of controlled blasting, emphasizing the importance of mixed demolition methods, including controlled blasting, for achieving the sustainability and resource recovery of construction projects [5].…”

Section: Introductionmentioning

confidence: 99%

Harnessing Energy Balance and Genetic Algorithms for Efficient Building Demolition

Chen,

Wang,

Lin

2023

Applied Sciences

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In the realm of building demolition, ensuring the uniform distribution of energy from multiple sources is of paramount significance for the systematic deconstruction of large structures. This study presents an integrated methodology that combines genetic optimization and potential energy balance to determine the most suitable locations for multiple energy release points, thereby enhancing the efficiency and reliability of the demolition process. We initiate our approach by randomly selecting energy release points within a building model and subsequently simulate energy dispersion utilizing a potential function until reaching stable boundaries. In instances where the discrepancy in the area between the regions with maximum and minimum energy dispersion exceeds a predefined threshold, we instigate an optimization process employing genetic algorithms. This optimization process involves genetic crossover and mutation operations, followed by subsequent energy balance calculations. The result is not only an improvement in demolition efficiency but also an assurance of even energy coverage throughout the target area.

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Modelling Structural Failure with Finite Element Analysis of Controlled Demolition of Buildings by Explosives Using LS-DYNA

Cited by 7 publications

References 6 publications

On the interaction between shear dusty currents and buildings in vertical collapse: Theoretical aspects, experimental observations, and 3D numerical simulation

On the interaction between shear dusty currents and buildings in vertical collapse: Theoretical aspects, experimental observations, and 3D numerical simulation

A shear wall element for nonlinear seismic analysis of super-tall buildings using OpenSees

Harnessing Energy Balance and Genetic Algorithms for Efficient Building Demolition

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