Hainan Steel News: Macau's first large-span space shell single capped steel works

Recently, MGM Cotai hotel project engineering sky cap. It is reported that the project is two-way saddle hyperboloid skew diagonal monolayer shell structure large span networks, is the first in Hong Kong and Macao regions.

The project planning and dynamic modeling lightweight steel construction is necessary to ensure that the "weight is not excessive", but also "the body strong enough." How to root after more than 5,000 members and 1,500 non-standard bar size is not the same node personalized planning and production of the perfect combination is a not a small problem, according to the steel construction planning personnel, they repeatedly conducting research , from the cellular to be inspired, creative use of internal and external nodes in the form of a double hollow hexagonal prism, a quarter to reduce the structural weight, and the structure is stable connection. In the production chain, the project also "experience" to a lot of difficulty. Steel engineering project each node by six kinds of standard parts totaling 48 plate group fight together in diameter from 40 centimeters to 100 centimeters, the number of welds from 40-50, built in steel production staff He said welding this node is simply in embroidery, but by concentric positioning optimization, weld optimization measures to effectively and strictly control the production of precision error within the British standard specifications required by Hainan Steel 3 mm. In the apparatus of the process, the use of point-in support system in a small space to ensure the load path through the 144 support points clear, while using three-dimensional coordinates of the law means good control accuracy.