SBDC

Abstract

Irregularly shaped wood created as waste from construction is considered challenging to reuse because of its complicated geometry and a lack of well-defined design methods. Here, we propose a sustainable building design and construction framework as a systematic methodology for upcycling irregular off-cut wood into new components. This framework consists of repeatable steps, as follows: a. material reclamation system: 3D scanning is employed as the main technical method to record a material’s 3D information and material-specific parameters and create a database; b. structural generation and assessment system: material screening, voxel-based filling, and structure generation based on finite element analysis to employed to assess the generated results prior to construction to optimize the final structure. Using furniture, building components, and installations/buildings, we verify the use of this framework for material recycling and generative design and construction.

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Framework for sustainable building design and construction using off-cut wood - Jianing Luo

Sustainable building design and construction (SBDC) framework, method, and workflow

This framework includes material reclamation system (MRS), structure generation and assessment system (SGAS) and fabrication.

Reclaimed wood database

The database demonstrates the information on wood type, length, width, weight, approximate age, recycled grade, and material proportions were measured and recorded

Structure generation and assessment system (SGAS) workflow in furniture scales - Stool generation

a Voxel size definition. b Input voxel matrix. c Voxel rotation mechanism. d Material rationalization replacement. e Voxelized stool prototypes. f WFC voxel prototypes. g Rendering prototypes. h Topology optimization prototypes. i Selected off-cut wood-based stools.

Stool assembly

Side and perspective views of the assembled stool. The stool itself maintains good integrity.

Structure generation and assessment system (SGAS) workflow in architectural components scales - Column generation

a Voxelized column prototype. b WFC voxel prototypes. Blue parts are the structural horizontal voxels, green parts are structural vertical voxels, orange parts are decorative horizontal voxels, and red parts are decorative vertical voxels. c Rendering prototypes. d Topology optimization prototypes. e column assembly process.

Column assembly

The column was assembled in the School of Architecture, The Chinese University of Hong Kong.

Framework for sustainable building design and construction using off-cut wood

Abstract

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