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Wooden bridge in ancient China中国古代木桥宫殿田园桥梁天桥

宫殿天桥 bridge by VQVQ
木桥以天然木材作为主要建造材料的桥梁。由于木材分布较广，取材容易，而且采伐加工不需要复杂工具。所以木桥是最早出现的桥梁形式。其具有重量轻，强度较高，加工及各部分连接的构造简单等优点。但其也有易燃，易腐蚀，承载力和耐久性易受木材的各向异性及天然缺陷影响等缺点。
Wood bridge is a bridge with natural wood as the main construction material. Because of the wide distribution of wood, it is easy to get wood, and the cutting process does not need complex tools. So wooden bridge is the earliest bridge form. The utility model has the advantages of light weight, high strength, simple structure of processing and connection of various parts, etc. But it also has some disadvantages, such as flammability, easy corrosion, bearing capacity and durability are easily affected by wood anisotropy and natural defects.