About the Han Dynasty, the four basic types of bridges: beam bridge, pontoon bridge, cable bridge, and arch bridge were all produced. These four types of bridges have evolved according to their different building materials and structural forms: wooden bridge, stone bridge, brick bridge, bamboo bridge, salt bridge, ice bridge, rattan bridge, iron bridge, reed bridge, stone pillar bridge, stone bridge, etc. Pier bridge, overflow bridge, cantilever bridge, covered bridge, wind and rain bridge, bamboo bridge, stone slab bridge, opening and closing bridge, zipline bridge, triangular arch bridge, pointed arch bridge, round arch bridge, continuous arch bridge, solid belly Arch bridges, flat arch bridges, free-arch bridges, rainbow bridges, channel bridges, curved bridges, towpath bridges, cross bridges, plank roads, flying pavilions, etc., are almost all available. All forms of ancient bridges can be found in our country.
By main materials
Wood, stone, brick, bamboo, rattan, iron, salt, ice, paper bridge
By structure and appearance
p>The four basic types are beam bridge, pontoon bridge, cable bridge and arch bridge.
Other shapes
Flying pavilions and plank roads, channel bridges and towpath bridges, as well as curved bridges, fish marsh flying beams and Feng Shui bridges.