Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. architectural elements
7. [structural elements and components for structural elements]
8. structural elements
9. enclosing structural elements
10. [roofs and roof components]
11. roof components
12. roof frame components
13. horizontal roof frame components
14. tie beams

Anotations

Scope note:

According to the Yingzao fashi, zhaqian refers to cross beams that span one rafter (Liang 1983, 142). Zhaqian usually only serves to connect two members, but is not load-bearing. In extant buildings in southeast China, a similar component--called shuiliang 水梁 in Zhejiang and Jiangsu, shumu 束木 in southern Fujian, and shuishu 水束 in Guangdong--structurally combines zhaqian, chashou 叉手, and tuojiao 托腳.