What is the structure of falcon?

Mortise-and-tenon structure, the ancient buildings in China are mainly made of wood, brick and tile, and the wooden frame structure is the main structural mode, which is composed of columns, beams, purlins and other main components, and the joints between the components are equipped with tenons and tenons to form an elastic frame.

Mortise and tenon are a very ingenious invention. This connection mode of members makes the traditional wood structure in China become a special flexible structure beyond the bent, frame or steel frame of contemporary buildings. It can not only bear a large load, but also allow some deformation, which can offset some seismic energy under earthquake load and reduce the seismic response of the structure.

These tenon and mortise structures are mainly used in the construction of stilt houses in Hemudu, including convex square tenon, round tenon, double tenon, dovetail joint and tongue-and-groove tenon.