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Effect of Load-Bearing Wall Material on Building Dynamic Properties
Maciej Zajac1, Krystyna Kuzniar1, Tadeusz Tatara2
1Institute of Technology, University of the National Education Commission, ul. Podchorazych 2, 30-084 Krakow, Poland.
Materials (Basel, Switzerland)
|January 8, 2025
Summary
Building material significantly impacts structural dynamics. This study numerically analyzes how different load-bearing wall materials affect a building's natural vibration frequencies and mode shapes using finite element method (FEM) analysis.
Area of Science:
- Structural Engineering
- Materials Science
- Computational Mechanics
Background:
- Modern construction utilizes diverse materials, with research focusing on thermal and acoustic properties.
- Limited studies investigate the influence of construction materials on building dynamic properties and vibration behavior.
- Understanding dynamic properties is crucial for assessing structural response to vibrations.
Purpose of the Study:
- To numerically determine and analyze the impact of load-bearing wall construction materials on building dynamic properties.
- To investigate the effect of material properties on natural vibration frequencies and mode shapes.
- To propose, validate, and compare different three-dimensional finite element method (3D FEM) modeling approaches for load-bearing walls.
Main Methods:
- Finite Element Method (FEM) analysis was employed for a low-rise administrative building.
- Three-dimensional (3D) models were developed, validated, and compared.
- Nine variants of load-bearing walls using seven different construction materials were analyzed.
Main Results:
- A significant impact of load-bearing wall material properties on natural frequencies and mode shapes was identified.
- Comparative analysis demonstrated variations in dynamic properties based on material selection.
- Validation of proposed 3D FEM modeling approaches was achieved.
Conclusions:
- Construction material choice critically influences building dynamic properties, including natural frequencies and mode shapes.
- The study provides valuable insights for designing buildings subjected to dynamic loads.
- Accurate modeling of material effects is essential for predicting and mitigating vibration-related risks.
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