( 1)
According to the material and structure, beam bridges can be divided into wood beam bridges and Liang Shi bridges. "Wooden beam bridge" includes wooden beam-column bridge, wooden beam-column bridge, wooden beam-column pier bridge and wooden support bridge, among which "wooden beam-column bridge" is developed from the original wooden bridge with wooden beams and columns.
"Liang Shi Bridge" includes Shizhu Bridge in Liang Shi, Shidun Bridge in Liang Shi, Stone Cantilever Bridge (similar to wooden cantilever bridge), Trilateral Liang Shi Bridge, Shuiman Stone Bridge and Flat Bridge (more common in garden "curved bridge" and "fiber bridge"). Among them, "Liang Shi Shidun Bridge" is the most common. This kind of bridge goes further than using wooden beams with stone piers, and avoids the shortcomings that the wooden beam deck is easy to decay and often needs maintenance.
There is also a combination of bridge and pontoon bridge, that is, "opening and closing bridge". The floating bridge in the middle can be opened and closed as required. Such as Xiangzi Bridge in Chaoan County. The east and west ends of the bridge are Liang Shi Bridge, and the middle of the bridge is connected by 18 wooden boats to form a pontoon bridge, which is convenient for flood discharge and "connecting with giant ships to row rafts".
(2) Arch bridges can be divided into: steep arch bridge and flat arch bridge, pointed arch bridge and round arch bridge, multi-arch bridge and fixed-end arch bridge, single-hole arch bridge and multi-hole arch bridge, solid-bellied arch bridge and hollow arch bridge, and Hongqiao. The arcs of arched coupons are semicircle, horseshoe, full circle, pot bottom, egg circle, ellipse, parabola circle and hem, and the arrangement forms are parallel and cross-linking, among which cross-linking is the most widely used, and two kinds of cross-linked coupons with edges and frames are derived.
(3) Cable bridges can be divided into bamboo cables, iron cables, rattan cables, cable-stayed bridges, urban defense suspension bridges, single cables, double cables, multi-cable bridges and parallel multi-cable bridges according to their different textures and structural forms.
Bridge types: beam bridge, pontoon bridge, cable bridge, arch bridge, wooden bridge, stone bridge, brick bridge, bamboo bridge, salt bridge, ice bridge, rattan bridge, iron bridge, reed bridge, stone pillar bridge, stone pier bridge, flood bridge, cantilever bridge, covered bridge, wind and rain bridge, bamboo bridge, stone bridge, telescopic bridge and cable-stayed bridge.