| Summary: | 碩士 === 國立交通大學 === 建築研究所 === 104 === This research was motivated by a built bamboo pavilion, of which the intent was focus on how to design with the natural forming by the bamboo strips when bent. However, the biggest problem encountered during the design process was the bend curve couldn’t be defined or described in 3D environment. Due to a significant characteristic of natural material, heterogeneity, the form created by force is irregular and hard to predict. Subsequently, spatial review and structural analysis couldn’t be evaluated. Unlike conventional geometric-defined design approach, the form of the built bamboo pavilion is generated by material behavior, this kind of design approach should be based on the material properties and material behavior analysis, and should be aided by the computability of digital design tool.
In order to deal with the heterogeneity and the irregularity, generally, natural material is coupled with crafting techniques, which has instant interaction between material the maker. However, the demand of digital system is reliability and consistency of information exchange, precise material data is needed. Therefore, without a model to describe bamboo strips bend behavior, material data and material study results couldn’t be inserted into the digital system for design usage.
This research demonstrated how to bridge the gap between natural material and digital system by 4 parts: bamboo strips bend experiments, bamboo strips bend parametric model, form generator and assembly from material suggestion. A database is constructed based on the parametric model which combined with material experiments, bamboo strips bend behavior analysis, bend form variables and bamboo strips bend characteristics. Additionally, a bamboo strips design tool is proposed, to generate behavior-driven form, and to achieve the goal of form prediction and material suggestion from the database.
As a result, digital system not only carries material knowledge that craftsmen obtain by experiences, but also shifts the way that natural material generally coupled with crafting techniques. The shift reduces construction techniques level and bridges the gaps between stages of crafting techniques. Furthermore, bamboo strips characteristics and data exchange in the process of automation in the digital system, has created an opportunity for better elaboration of material, which no longer just a by-product of geometry-centric design approach. Finally, we may pursue innovative digital crafting with significant potentials.
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