Reusing concrete components is a promising solution for mitigating the environmental impact of waste generated by construction and demolition activities. This study aims to contribute to this effort by assessing the reusability of existing precast concrete components before they are used in new structures via the development of a Building Information Modelling (BIM)-based methodology. The first step of the procedure involves the identification of the components that pass the component condition criterion. In the next stage, the disassembly ability of the selected components is assessed. An automated sequential disassembly plan is developed by ensuring that the component does not host another component, has no fasteners, and identifies the directions for disassembly. This plan facilitates the isolation of the components that can be reused and then calculates the other criteria defined in this study for these components. These criteria are the load-bearing capacity, the cost, the environmental impact, and the duration of deconstruction. This data is essential in determining the total value of each component and the overall possible reduction in the carbon footprint achieved through the reuse of these components. The result will be a model visualisation of the component that can be reused and a report containing all this information essential for matching it with the new design. Furthermore, this report includes detailed sequential disassembly planning, facilitating streamlined deconstruction processes.

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A BIM-Based Assessment Method for Reusing Components from Existing Precast Concrete Buildings

  • Husam Al-Jawhar,
  • Georgia Thermou,
  • Carlos Osorio-Sandoval,
  • Serik Tokbolat

摘要

Reusing concrete components is a promising solution for mitigating the environmental impact of waste generated by construction and demolition activities. This study aims to contribute to this effort by assessing the reusability of existing precast concrete components before they are used in new structures via the development of a Building Information Modelling (BIM)-based methodology. The first step of the procedure involves the identification of the components that pass the component condition criterion. In the next stage, the disassembly ability of the selected components is assessed. An automated sequential disassembly plan is developed by ensuring that the component does not host another component, has no fasteners, and identifies the directions for disassembly. This plan facilitates the isolation of the components that can be reused and then calculates the other criteria defined in this study for these components. These criteria are the load-bearing capacity, the cost, the environmental impact, and the duration of deconstruction. This data is essential in determining the total value of each component and the overall possible reduction in the carbon footprint achieved through the reuse of these components. The result will be a model visualisation of the component that can be reused and a report containing all this information essential for matching it with the new design. Furthermore, this report includes detailed sequential disassembly planning, facilitating streamlined deconstruction processes.