Szczepanski Marcin, Manguri Ahmed, Saeed Najmadeen, Chuchala Daniel
Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland.
EkoTech Center, Gdańsk University of Technology, 80-233 Gdańsk, Poland.
Polymers (Basel). 2022 Jan 26;14(3):497. doi: 10.3390/polym14030497.
The wooden frame constructions are now popular in many developed countries of the world. Many of these locations where such buildings are constructed are exposed to seismic and other shocks which are generated by human activities. This paper discusses the effect of the size and location of openings in the wooden frame walls under dynamic loadings. Natural frequencies of such frames with and without openings have been determined. Three 14 m high walls with different widths, including 3, 6, and 12 m, have been considered. Dynamic analysis has been made using finite element method structural analysis software Dlubal RFEM 5.17. The results show that the effect of the size and location of the openings on the natural frequency is significant. Numerically speaking, the relative change of the natural frequencies of a wall without and with an opening in a specific place could be up to 30%. In addition, the change of the natural frequency for the location of the openings is more sensitive than that to the sizes. Furthermore, the appropriate sizes and locations of openings of the wooden frame walls have been suggested. The appropriate size and place were found to be small openings in the top of the walls.
木结构建筑如今在世界上许多发达国家都很流行。建造这类建筑的许多地方都易受地震以及人类活动产生的其他震动影响。本文讨论了木结构墙体中开口的尺寸和位置在动态荷载作用下的影响。已确定了有开口和无开口的此类框架的固有频率。考虑了三道高度为14米、宽度不同（包括3米、6米和12米）的墙体。使用有限元法结构分析软件Dlubal RFEM 5.17进行了动态分析。结果表明，开口的尺寸和位置对固有频率的影响很大。从数值上讲，特定位置有开口和无开口的墙体固有频率的相对变化可能高达30%。此外，开口位置引起的固有频率变化比开口尺寸引起的更敏感。此外，还给出了木结构墙体开口的合适尺寸和位置建议。发现合适的尺寸和位置是墙体顶部的小开口。
