1 hole16m beam bridge belongs to what bridge?
1, the total length of the bridge is less than 8 meters, which is called culvert.
2. Bridges with a total length of more than 8 meters and less than 40 meters are called small bridges.
3. Bridges with a total length of more than 40 meters and less than 100 meters are called medium bridges.
4. A bridge whose total length is greater than or equal to 100m and less than 500m is called a bridge.
5. Bridges with a total length of more than 500 meters are called extra large bridges.
brief introduction
The bridge with beam as the main load-bearing component is the earliest bridge type in China, which was first established in the Yin Dynasty. The most primitive beam bridge is a single-plank bridge, and later it developed into several bamboo trees side by side.
Since then, the beam bridge has continuously evolved, replacing wood with stone, and gradually developing and innovating in structure, such as auxiliary suspender beam bridge, splayed beam bridge and outrigger beam bridge, from single-hole beam bridge to multi-hole beam bridge. The bearings of perforated beam bridges generally use wooden columns, stone pillars or stone piers, and some also use cast iron columns.
Because of its simple structure and convenient construction, Liang Shi Bridge, in particular, is the most common bridge type because of its durable materials and labor-saving maintenance. The existing large-scale ancient bridges in Liang Shi are mainly concentrated in Fujian coastal areas, especially Quanzhou.
The famous ones are Wan 'an Bridge (commonly known as Luoyang Bridge) and Anping Bridge (commonly known as Wuli Bridge). Most of these bridges were built in the Song and Yuan Dynasties, mainly using technologies such as raft foundation, wedge pier and floating giant Liang Shi. Some bridges also skillfully use the reproductive characteristics of sea oysters to strengthen the bridge foundation and pier. These technologies are major breakthroughs and innovations in the history of bridge construction, and they are also the first in the history of bridge construction in the world.