What is the main structure of ancient buildings in China?

The ancient buildings in China are dominated by wooden frame structures, including three types of structures: lifting beam, crossing bucket and well.

The beam-lifting type is to put a column on the ground first, and then put a beam on the column. Purlins perpendicular to the beams are placed between every two groups of parallel beams, and several rafters are arranged on these purlins, forming a complete wooden frame. The space between each two groups of parallel beams is called "space".

The bucket-through type is also a vertical column on the ground, but purlins are directly installed on the column without a beam, and the intervals between columns are dense, and the columns are connected through several layers of "penetration" to form a frame. This structure saves wood, especially does not need any large column materials. Geographically, this structure is widely used in buildings in the south of China.

Well-dry type refers to the horizontal and vertical intersection of wood, which forms the wall of the house by overlapping layers. This form, like the shaft, is named dry well, and this form of house is rare.