本研究評估及追踪臺大土木工程學系大學部學生於Capstone設計課程中，利用國產疏伐木於臺大實驗林管理處溪頭自然教育園區內進行跨溪步行橋樑的結構設計表現。以研究現有橋樑設計的案例開始，接下來利用發泡板製作出1：50橋樑結構系統的縮小模型，並經現地調查之後，學生以小組方式除了提出四個橋樑設置位址之外，並提供2種橋樑設計型式做為園區內遊客的問卷調查，接下來對於經確認的橋樑設計型式進行細部的結構組件繪製，並製作1：25縮小力學模型評估結構設計之可行性、載重測試及結構強度。徵詢專業結構設計師及相關人員的建議之後，以2D及3D圖面呈現細部結構計算的結果做為未來可能施作的工程圖面，於整個課程發展過程中，學生儘管缺乏國產疏伐木利用的實務經驗，但都能很積極的面對各項挑戰，顯示此課程除了可加強對於疏伐木利用及學生之間的協作學習之外，亦可學習如何與教師、專家、客戶及決策者之間藉由溝通之後完成更具實務價值的學習成果。

This study assessed and traced the performance of undergraduate students from the Department of Civil Engineering, National Taiwan University in applying Capstone Course to the design and construction of a new footbridge using domestic plantation timber. The bridge was to be constructed across a mountain torrent in the Xitou Nature Education Area of the NTU Experimental Forest. The design process started with case studies of existing bridges, followed by development of structural system proposals and construction of 1:50 foam-board scale models. After field investigation, students worked in teams to propose four possible locations. Two bridge designs selected by the visitors in Xitou area based on questionnaires were then developed with formulated assembling details and calculated structural strength. Two 1:25 scale models were fabricated using curved glulam members and soldered copper joints. Load tests were then conducted. Comments from professional structural designers and the public were solicited, and the options preferred by future users were identified. Detailed structural calculations for the preferred option were performed in 2D and 3D with the aim of producing a set of construction drawings for possible implementation. Throughout the process, students were highly motivated in addressing the challenges. Despite their lack of experience in domestic thinned wood utilization, their performance was satisfactory. This course served its purpose of using thinned wood, fostering collaborative learning among students and promoting their communication skill with instructors, professionals, users and decision-makers.