藝術與建築詞典根目錄
....物件層面
........組件 (層級名)
............成分
................<依特定背景區分之組件>
....................建築元素
........................<結構元素與結構元素構造>
............................<結構元素>
................................<跨接與外伸結構元素>
....................................<桁架與桁架構造>
........................................桁架 (桁架構造)
............................................<依形式區分之桁架>
|||................................................弓弦桁架
|||................................................布爾式拱桁架
|||................................................新月形桁架
................................................芬克式桁架
|||....................................................扇形芬克式桁架
|||................................................椽尾樑桁架
|||................................................中柱式桁架
|||................................................偶柱式桁架
|||................................................剪式桁架
|||................................................唐恩式格構桁架
|||................................................空腹桁架
............................................<依地點位置或背景脈絡區分之桁架>
|||................................................小桁架
|||................................................矮桁架
|||................................................下承桁架
|||................................................桁架式椽子