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In this study, three types of buildings’ structural frames (Buildings A, B, and C consisting of CLT, steel-concrete, and CLT-steel-concrete, respectively) were modeled, and the amount of materials was calculated in order to determine carbon emissions. A comparison of structural performance was conducted in accordance with the applicable design code criteria. Based on the structural analysis and design results, all three modeled frames showed acceptable performance under the critical combinations of lateral and gravity loads. It was clear from the present study that greater carbon emissions (e.g., 295.58 tons) were found in frame B, which consisted of concrete and steel. On the other hand, CLT and hybrid frames (A and C) showed no emissions under the designed conditions for structural frames of ten-storey residential buildings. Utilizing CLT instead of steel and reinforced concrete frames can be recommended in the Kingdom’s green projects (e.g., Line of NEOM). As CLT components are lightweight and act as carbon sinks, engineers will undoubtedly reconsider using them in midrise buildings.

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Sustainable Building Construction and Carbon Emission for Structural Frame

  • 会议论文

  • 发表日期：

    2025年

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  • Saidur R. Chowdhury,
  • Danish Ahmed,
  • Samar Dernayka,
  • Andi Asiz,
  • Tahar Ayadat

摘要

In this study, three types of buildings’ structural frames (Buildings A, B, and C consisting of CLT, steel-concrete, and CLT-steel-concrete, respectively) were modeled, and the amount of materials was calculated in order to determine carbon emissions. A comparison of structural performance was conducted in accordance with the applicable design code criteria. Based on the structural analysis and design results, all three modeled frames showed acceptable performance under the critical combinations of lateral and gravity loads. It was clear from the present study that greater carbon emissions (e.g., 295.58 tons) were found in frame B, which consisted of concrete and steel. On the other hand, CLT and hybrid frames (A and C) showed no emissions under the designed conditions for structural frames of ten-storey residential buildings. Utilizing CLT instead of steel and reinforced concrete frames can be recommended in the Kingdom’s green projects (e.g., Line of NEOM). As CLT components are lightweight and act as carbon sinks, engineers will undoubtedly reconsider using them in midrise buildings.