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Your search keyword '"MIGDA, WOJCIECH"' showing total 2 results
Start Over Author "MIGDA, WOJCIECH" Topic seismic response
2 results on '"MIGDA, WOJCIECH"'

1. Nonlinear Numerical Simulation of Earthquake-Induced Pounding between Timber Frame Buildings.

Author

Migda, Wojciech, Szczepański, Marcin, Lasowicz, Natalia, Jakubczyk-Gałczyńska, Anna, and Jankowski, Robert

Subjects
*EFFECT of earthquakes on buildings, *WOODEN-frame buildings, *SEISMIC response, *COMPUTER simulation, *CONCRETE masonry, *DYNAMIC loads, *INDUCED seismicity
Abstract

Earthquakes may induce serious dynamic loads acting on buildings, which can lead to damage or even destruction of the whole structure. In densely populated areas, it is quite common that buildings are located very close one to another which can result in pounding between them during ground motions. Due to the environmental awareness, multi-story timber frame buildings are gaining popularity and therefore there is a need to investigate the effects of structural collisions on seismic response of such buildings. In this paper, the results of advanced numerical FEM simulation, focused on inter-story pounding between two adjacent multi-story timber frame buildings, are presented. The results of the study show that structural interactions have a significant influence on the overall response of buildings exposed to damaging seismic excitations. Moreover, due to deformability of buildings made of wood, pounding may change response of such buildings much more, as compared to steel, reinforced concrete or masonry structures. Finally, the results confirm that the use of the nonlinear FEM with detailed representation of material and geometric structural properties can be considered as the effective approach in obtaining the accurate response of colliding timber frame buildings during earthquakes. [ABSTRACT FROM AUTHOR]

Published
2020
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2. Increasing the Seismic Resistance of Wood-frame Buildings by Applying PU Foam as Thermal Insulation.

Author

Migda, Wojciech, Szczepański, Marcin, and Jankowski, Robert

Subjects
*WALLS, *WOODEN-frame buildings, *THERMAL insulation, *FOAM, *SEISMIC response, *WOODEN-frame houses, *INSULATING materials
Abstract

Wood-frame buildings are very common in regions that are exposed to earthquakes. Most of residential buildings are constructed using this technology; therefore, the seismic resistance of them is really essential in order to prevent human losses and structural damage. The aim of the present article is to show the results of the detailed numerical FEM analysis focused on the seismic behaviour of the wood-frame house with different in-wall insulation materials. The results of the study clearly indicate that using polyurethane (PU) foam instead of mineral wool leads to the increase in the rigidity of the structure and, therefore, to the substantial reduction in the structural response under different seismic excitations. The results also show that, generally speaking, the level of reduction in the displacement response increases with the increase in the magnitude of the earthquake, which even furthermore benefits the application of PU foam as an insulation material. It has also been concluded that the method of using PU foam can be successfully applied not only in the newly constructed wood-frame houses but also in existing ones since replacing the mineral wool with PU foam is relatively easy and not so much expensive. [ABSTRACT FROM AUTHOR]

Published
2019
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