What is the lamp beam?
The grid beam is a type of beam with a key web design, for example in gardening grilles, between the two edges of the beam. The diagonal steel lines provide support in all directions and help prevent a beam that is one of the main support elements in the bridge design, bending. Often observed on older bridges or buildings, grid beams are also widely used in mining tunnels to support roof during excavations and can be quickly built. They are also used to reinforce the sprayer, forms of concrete or mortar pneumatically applied at high speed from the hose to the structural supports. During the grilles, they are no longer used so much during construction or bridges, as the beams of the fixed steel slab have been replaced. However, the tunneling operations use them well because they are lightweight and can be easily assembled by the floor and wall surfaces with several workers. Lattic beam can be used as it is or covered in shooting for additional load strength. Lattice beamsThey are most commonly used in 3-bar or 4-bar configurations and diagonal reinforcement gives the load along the entire length of the rods for resistance.
In tunneling surgery, the wearer is often selected over the steel plate beam, as it can be completely built into a spray lining that allows the walls in the tunnel easier. It can adapt well to different soil levels and provide a cover with cut water that keeps water. Statical load studies have shown that although they were not closed, the grid beam has a high hunting load; It can handle the loads well, even if the spray is still cured and soft. The ability to easily deform the beams so that the walls and floor of the tunnel without, maintaining the load on the load is the reason why the beams in the backward projects are so trustworthy.
Lattice Girders are also used as part to ensure armpits for the structure of the structure for PFlays that can handle heavy loads. They are used to create so -called lattic nasal plates for high capacity. In the structures of the wall curvature, their surfaces can be connected to polystyrene empty formats to reduce the weight of the wall weight. The bars can be included in accommodation of large vaulted holes when using these formators of emptiness due to reduced weight.