The Bianshui Hongqiao in the Qingming Riverside Picture is the earliest wooden arch bridge discovered in my country. The bridge body is strong and stable, and the existing wooden arch bridges are concentrated in Fujian and Zhejiang.

The shape is an arch and the structure is a beam.
The most simplified wooden arch bridge is composed of several "workers", and a single "worker" is connected by a mortise and tenon structure. The reason why the bridge body bears heavy pressure and remains stable for a long time is that "work" and "work" use shear force to support each other.

I think the best inheritance is to enter the culture of people's life. appropriate ⁾ ⁾