Quick Answer: What Is a Chinese Column Base?
A Chinese column base (柱础, zhùchǔ) is the support directly beneath a post in a traditional building. In timber buildings it is commonly a stone fitting that carries the post’s weight into the platform or foundation below.[1][2][3]
- Position: The pillar foot (柱脚, zhùjiǎo) sits over the base. Part of the stone can be buried in the platform.[1][3]
- Function: A stone base provides a level bearing surface and separates the timber from direct ground contact.[2][3]
- Appearance: Bases can be plain, rounded like an overturned basin, shaped like a drum or carved with petals.[2][3]
The exposed stone gives a clue to a larger structure below floor level. Follow it upward to the post and downward to the platform.[1][3][4]
At the foot of a painted timber column, a pale ring can look like decoration. Its stone surface also marks the transition from wood to the platform. The carving and the bearing surface are parts of the same object.[2][3]
What the Stone Beneath a Column Does
A column carries weight from above to the stone immediately below it. The stone creates a level bearing surface and passes the load into the structure beneath. Timber bracket sets are found at the other end of the post in some buildings, near the roof and eaves. The bracket and base occupy different positions in the same frame.[1][3]
Stone raises the timber end away from direct contact with the ground or paving. The amount of separation depends on how much of the base projects above the surface. The base works alongside measures such as courtyard drainage, which concerns where water goes after it reaches the site.[2][3][4]
An excavation at the Palace Museum’s Southern Storehouses recorded base stones, brick footings and rammed layers. These were separate from neighboring features such as a drain and paved surface. Archaeology can expose that deeper construction after the timber and other parts of a building are gone.[4]
Plain, Drum-Shaped and Lotus Bases
| Profile | What you can see |
|---|---|
| Plain or low | A flat stone or a modest raised contact surface immediately below the post. |
| Inverted-basin base (覆盆, fùpén) | A broad, rounded profile resembling an overturned basin. |
| Drum-shaped base | A raised block with a curved side, sometimes bearing shallow carving. |
| Lotus base | Rows of carved petals, which can face upward, downward or in both directions. |
Read the shape first and then the carving. The profile determines the broad outline of the stone. Petals or other motifs may be worked into that profile. The Shanghai architectural guide records considerable variation, including combined bases carved from a single piece of stone for two posts.[2]
Reading the Bases at Fengxian Hall
A Palace Museum study recorded 84 column bases at Fengxian Hall, each with a lotus design. Their exposed height was the same, 16.5 centimeters, while their dimensions in plan varied with the diameter of the posts. Matching heights can make a row look uniform even where the stones are different widths.[3]
The researchers also compare building manuals that relate the width of a square base to the diameter of its post. That relationship helps explain why the stones can have different widths in the same complex, even when the amount exposed above the paving is the same.[3]
The study distinguishes the older term zhuchu from the Qing term zhuding. It also discusses the stone under the post as a zhudingshi (柱顶石, zhùdǐngshí). The word can look puzzling in translation because the stone is at the foot of the post. When reading a survey, note whether a measurement refers to the visible part, the whole stone or the space between posts. Chinese building bays covers that last kind of measurement.[1][3]
FAQs About Chinese Column Bases
Is a column base the whole foundation?
The base is the component directly below the post. It can rest on further masonry, platform fill or other buried foundation work, as the excavated Palace Museum example shows.[1][4]
What is an inverted-basin base?
It is a stone base whose visible profile curves outward and down like an overturned basin. Some versions are plain and others have more ornament.[2]
Can lotus carving identify a building’s date?
Lotus carving can identify a motif and suggest comparisons with other buildings. Dating a particular base requires other evidence, such as a measured survey, an inscription or an archaeological record.[2][3][4]
Sources
[1] Getty Research Institute. Zhuchu in the Art and Architecture Thesaurus
[2] Shanghai Landscaping and City Appearance Administrative Bureau. Profiles and motifs of traditional column bases
[3] Palace Museum. Survey and analysis of Fengxian Hall
[4] Palace Museum Archaeology Institute. Excavated base stones and foundations at the Southern Storehouses