Earthquakes result in severe damage to buildings and infrastructure, as well as loss of life and displacement of communities. One of the most crucial ideas in structural engineering is the construction of earthquake-resistant structures to mitigate the effect of seismic movements on the structure. As per the Bangladesh National Building Code 2020, which follows the seismic standards outlined in ASCE 7–05, there are four seismic zones (I, II, III, IV). The intensity of earthquakes might be higher in seismic zones with higher coefficients. Due to their straightforward construction techniques and simplicity of installation, bracing, and shear walls are typically employed to create earthquake-proof structures. These two systems significantly contribute to the stiffness of the building. The study aims to be beneficial for structural engineers to choose a suitable configuration for building design according to the architectural and functional requirements. With the utilization of the CSI ETABS program, G + 15 buildings were developed in Zone II of Bangladesh. For the current study, response spectrum analysis is used to conduct the analysis. Different parameters such as story drift, story shear, and fundamental period were compared for building models equipped with steel bracings and shear wall approaches. The outcome of the research shows that both the steel bracing as well as shear wall method are effective in resisting lateral deflection.

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Investigation on the Impact of Bracings and Shear Walls on Seismic Performance of Buildings

  • Shahriar Alam,
  • Chowdhury Zubayer Bin Zahid,
  • Redwan Ul Islam

摘要

Earthquakes result in severe damage to buildings and infrastructure, as well as loss of life and displacement of communities. One of the most crucial ideas in structural engineering is the construction of earthquake-resistant structures to mitigate the effect of seismic movements on the structure. As per the Bangladesh National Building Code 2020, which follows the seismic standards outlined in ASCE 7–05, there are four seismic zones (I, II, III, IV). The intensity of earthquakes might be higher in seismic zones with higher coefficients. Due to their straightforward construction techniques and simplicity of installation, bracing, and shear walls are typically employed to create earthquake-proof structures. These two systems significantly contribute to the stiffness of the building. The study aims to be beneficial for structural engineers to choose a suitable configuration for building design according to the architectural and functional requirements. With the utilization of the CSI ETABS program, G + 15 buildings were developed in Zone II of Bangladesh. For the current study, response spectrum analysis is used to conduct the analysis. Different parameters such as story drift, story shear, and fundamental period were compared for building models equipped with steel bracings and shear wall approaches. The outcome of the research shows that both the steel bracing as well as shear wall method are effective in resisting lateral deflection.