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>
....................................<拱券與拱券構造>
........................................拱
............................................<依形式區分之拱券>
|||................................................鐘形拱
|||................................................盲拱
|||................................................懸鏈拱
|||................................................尖頭拱
|||................................................橢圓拱
|||................................................佛羅倫薩拱券
|||................................................馬蹄形拱
|||................................................仰拱
................................................尖拱
|||................................................四面拱門
|||................................................高低拱
|||................................................弓形拱
|||................................................半拱
|||................................................半圓拱
|||................................................肩形拱
................................................上心拱
|||................................................扁圓拱
|||................................................三角拱
................................................<依形式區分之拱券：結構>
................................................<依形式區分之拱券：鉸鏈>
................................................<依形式區分之拱券：拱心數目>
................................................<依形式區分之拱券：規劃>
|||................................................塞里歐拱
............................................<依功能區分之拱券>
|||................................................扶朵拱券
|||................................................輔助拱
|||................................................扶拱
............................................<依地點位置或背景脈絡區分之拱券>
|||................................................背拱
|||................................................聖壇拱
|||................................................橫隔拱
|||................................................墩拱
|||................................................副拱
|||................................................橫拱
........................................<拱券構造>
|||............................................拱邊飾
|||............................................拱腰
|||............................................柱頭拱墩
|||............................................拱基