When it comes to bridge materials, people's first response is steel. In fact, in recent years, some bridges began to use aluminum alloy plate to stop manufacturing. Perhaps a friend should ask, with alloy aluminum plate as a bridge, alloy aluminum plate strength enough?
It is true that the strength of aluminum alloy plate is slightly lower than that of steel plate, but this does not affect its use to make bridges. In particular, the strength of overbridge and aluminum alloy plate is more than enough. So what are the advantages of using aluminum alloy plates to make overpasses?
Strong corrosion resistance
The price of aluminum plate is negligible for the corrosion of rain water, road salt and mud, especially the 5xxx alloy. Therefore, it is not only unnecessary to paint after construction, but also unnecessary to maintain regularly during the service period.
The density of alloy aluminum plate is about 2.7g/cm3, while the density of steel is about 7.8g/cm3.
The strength performance of 6xxx alloy aluminum plate is comparable to that of low carbon steel, so its specific strength (strength mass ratio) and specific stiffness (specific modulus of elasticity) are far beyond that of steel.
这一点关于建造桥梁来说很重要，由于其能够消费设计师所需求的断面复杂的空心型材，增大接受负载的才能，而不用停止昂贵的切削加工，还能够消费变断面型材。由于大挤压材的应用与其质量的相对较轻，可在工厂预制桥梁，有利于降低制形成本与运输费用，缩短装置时间，对交通影响大大减轻。铝板价格韧性高This is very important for the construction of bridges, because it can consume the complex hollow sections required by designers, increase the ability to accept loads, without stopping expensive cutting, and also can consume variable section sections. Because of the application of large extrusion material and its relatively light quality, the bridge can be prefabricated in the factory, which is conducive to reducing the cost of forming and transportation, shortening the installation time, and greatly reducing the traffic impact. High price toughness of aluminum plate抗疲倦裂纹扩展才能很强，又无低温脆性。合金铝板的强度与塑性均随着温度的降落而同步上升，可是90%以上的钢都有低温脆性，所以合金铝板是高寒地域造桥的上乘资料。
The fatigue crack growth resistance can be very strong without low temperature brittleness. The strength and plasticity of the alloy aluminum plate increase with the drop of temperature, but more than 90% of the steel has low temperature brittleness, so the alloy aluminum plate is the best data for bridge construction in the high cold region.
Aluminum is one of the better metal materials for circular economy. Alloy aluminum plate bridges have no corrosion loss during operation and almost all of them are recovered. At the same time, the energy consumption of waste aluminum is only 5% of the energy consumption of raw aluminum extraction, which is of great significance to the circular application of resources, energy conservation and emission reduction, and has serious social benefits.
以上就是铝板生产厂家为大家先容的城市内一道躲藏的靓丽景色线——铝桥的优势了。认准正轨厂家，才干购置到优质的铝板。本文来源：The above is the advantage of aluminum bridge, a beautiful hidden scenery line in the city introduced by aluminum plate manufacturers. Only by identifying the right manufacturers can we purchase high-quality aluminum plates. Source: