As we all know, about 20% of the world's total aluminum output is used in the construction industry, and the construction industry in some industrially developed countries accounts for more than 30% of its total output.  Industrial aluminum can not only greatly reduce the weight of buildings and save materials, but also reduce the workload of transportation and installation of components, and speed up the construction progress.

The construction industry has always been the largest consumer area of aluminum, and the application range of industrial aluminum has become more and more extensive, from building maintenance structure, architectural decoration, reticulated shell structure, grid structure, glass curtain wall support system, aluminum workshop,  Enclosure, aluminum formwork, communication tower, police silver pavilion to pedestrian bridge, etc.  Let's follow the editor to do a simple understanding.

Internationally, the maximum span of the dome reticulated shell can reach 131 meters in a single layer and 236.5 meters in a double layer.  The U.S. University of Connecticut and the University of Hawaii Arena, Bell Center for Economics, Alabama National University with a diameter of 80.77 meters, long Beach, California, Spruce Cooper’s 126.49 meters, etc.  The application of aluminum in grid and reticulated shell structures in my country is also gradually increasing.  The Tianjin Battle of Pingjin Memorial Hall is my country’s first aluminum alloy triangular grid single-layer spherical reticulated shell structure. Its bottom plane diameter is 45.6 meters, the building is 33.83 meters high, the largest spherical diameter is 48.945 meters, and the reticulated shell weighs 34.4 tons, together with the aluminum alloy housing. The total weight of the panel is 58.7 tons.  In addition, the main hall of Shanghai International Gymnastics Center, Shanghai Acrobatics Hall, Changsha Economic and Technological Development Zone Investment Service Center and other reticulated shells and grid structures are all made of aluminum alloy.  The biggest advantage is that it is light, easy to install and disassemble, not rusty, and can be used repeatedly, and the aluminum surface is beautiful and clean, which can save interior decoration. It has been widely used as engineering team dormitories, disaster relief rooms, various temporary courtyards, and event exhibition halls.  , The upgraded version of aluminum houses is also used in the construction of new rural areas in targeted poverty alleviation, and some are even used to build high-end villas.

If the market share of aluminum templates reaches 10%, the amount of aluminum used will reach 2 million tons.  Compared with steel formwork, the disassembly and installation speed of aluminum formwork is fast, which saves the construction period; although the investment of aluminum formwork is greater than that of steel formwork, the number of repeated use of aluminum formwork is much more than that of steel formwork.  The cost is much lower than the template of any material, which has more significant advantages in the construction of high-rise buildings.  The inner wall made of aluminum template is very flat and smooth, which can save the plastering and leveling process, and directly eliminate the common problems of hollow plastering and cracks on the interior wall from the source.  Replacing wooden templates with aluminum templates can protect forests and trees, which is the general trend of a low-carbon society.

Compared with traditional materials, aluminum enclosures have the advantages of light weight, easy processing, corrosion resistance, and beautiful appearance. They have been used in some factories and large buildings in my country.  According to statistics from China Nonferrous Metals Industry Association, my country consumes approximately 20 to 30 million tons of color steel plates for construction each year.  From a theoretical calculation, if all aluminum is used instead, 10 million tons of aluminum can be consumed, which is of great significance for promotion.

Foreign aluminum alloy tower structures are mainly used in communications and military fields, as well as monitoring, wireless data transmission and other services.  The domestic tower construction has also begun to use aluminum alloy materials, such as the Fuzhou aluminum alloy microwave tower.  Because aluminum alloy is far superior to steel in terms of corrosion resistance, and has obvious advantages in wear resistance and heat resistance, in the future, with the continuous expansion of communication coverage, the scope of base stations will gradually expand to coasts, islands, chemical plants, and fertilizer plants.  The application of aluminum alloy communication towers will be further expanded in areas with serious pollution and strong corrosiveness.

Encourage the expansion of the application of aluminum in the construction industry in the "Thirteenth Five-Year Development Plan for the Nonferrous Metals Industry".  From 2011 to 2013, my country achieved an annual export volume of about 3 million tons of aluminum.  The quality of high-precision plates, strips and foils, large-scale industrial aluminum materials and other high-end aluminum alloy materials continues to improve. However, there is still a gap between my country’s aluminum industry and the international advanced level. Some high-precision aluminum materials are still lacking, and some core key technologies are still lacking. A breakthrough is needed, and there is still a big gap between the application level and development goals.