- 學位論文
新建建築循環設計策略之建立與重要性評估
Establishment and Importance Evaluation of Circular Design Strategies for New Buildings
摘要
線性經濟的模式導致自然資源的消耗，且不斷產生廢棄物。循環經濟則是確保地球有限資源能循環再生的模式。建築產業消耗了大量的自然資源、產生許多營建廢棄物，因此將循環經濟應用於建築產業成為各國關注的議題。然而，建築是由複雜多樣的建築元件組成，涉及各式各樣的材料，如何實現循環建築目前仍沒有一套系統性的作法。 本研究初擬一個適用新建建築的循環設計策略架構，架構有三個層次：三個階段目標、七個循環設計策略、四個壽命不同之建築層次，期望能藉由此架構全面性的探討循環建築策略。另外，將此循環設計策略架構與台灣的綠建築評估系統(EEWH)比較，釐清現有永續建築規範中尚需補充之循環概念。兩者比較後發現EEWH著重節能減碳，大多數的考量項目僅是降低對環境生態的影響，缺少建築拆卸後建材回收的概念。 依據專家問卷調查結果，七個循環設計策略中，「長壽設計」及「建築元件未來再使用」為最重要的策略。「長壽設計」的概念在EEWH中有被提及，但僅針對鋼筋混凝土構造的結構及服務系統提出具體的長壽設計做法，鋼構如何做長壽還須進一步的研究。「建築元件未來再使用」在EEWH中未被提及，但實務上已開始推行，有待日後能將相關作法推向規範層次。 本研究期望幫助台灣營建產業能更全面、有系統的找出循環設計的方法，或者更進一步協助政府以循環設計的思維來審視和提升現有的綠建築評估系統，做為未來建立循環設計指標或將循環策略整合至現有綠建築指標的第一步。
並列摘要
As modern society is troubled by decreasing natural resources and increasing environmental pollutions caused by the linear economy model, the circular economy seems to be a promising solution and gains much attention recently. This trend of new thinking has also gained popularity among the construction industry, which has been blamed for consuming and creating massive raw materials and wastes. However, how to realize the circular economy for construction in a systematic way is still unclear. And this is an even more challenging question for the building industry since the building is a vast and complex product composed of different layers and involved a great variety of materials. There is still no systematic approach on how to achieve a circular building. Through reviewing existing materials on the concepts of circular economy and its application on buildings, three stage objectives, seven design strategies, and four building layers are identified as key elements in the conceptual framework for circular building design. Then, I compare my work with EEWH, a green building certification system commonly used in Taiwan. I found that EEWH focuses on energy saving and carbon reduction. Most of the contents in EEWH only consider reducing the impact on the environment and ecology instead of reusing and recycling after the demolition stage. Afterward, several empirical and academic experts who hold experience in green or circular building projects in Taiwan are invited to assign weights of key design strategies for different building layers through the analytic hierarchy process (AHP) method. “Design for longevity” and “Design for future reuse” are the most prioritized. The concept of “Design for longevity” has been mentioned in EEWH, but only for the concrete structure. Further research is needed on how to do longevity design on a steel structure. “Design for future reuse” is not covered by EEWH, but it has already been implemented in practice, which will be able to be written in sustainable building standards in the future. The proposed conceptual framework highlights three building stages and their associated design objectives and strategies, assisting designers to achieve more comprehensive and systematic work. Moreover, their work could become more effective with the different weighting of design strategies for building layers in mind. These research outputs could also guide governments to examine and upgrade their existing green building standards with circular design thinking.
參考文獻
延伸閱讀
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