The traditional Chinese architectural style based on wooden structures was formed around which dynasty?

Two major forms of wood construction, represented by the raised beam and pierced bucket styles, were developed during the Han Dynasty in the 2nd century BC. The key technology of this wooden structure system is the mortise and tenon structure, that is, the connection between the wooden members does not need other materials made of auxiliary connecting elements, mainly relying on the two wooden members between the plug. This kind of connection between members makes the wood structure with flexible structural characteristics, strong seismic resistance, and has the obvious advantages of prefabricated processing, on-site assembly, short construction cycle. The mortise and tenon structure has been seen as early as 7,000 years ago in the Hemudu culture site architecture.