Spaceframe-SAFS

space frame Convenient and fast installation: 70% of the workload of bolted ball space frame structure is prefabricated in the factory, and only bolting is required at the site, which is relatively simple to operate, and only a spanner is needed to tighten the bolts, without large construction equipment and complex on-site welding operations, which can effectively shorten the construction cycle and improve the construction efficiency. In contrast, the welded ball grid structure has a large amount of on-site welding workload, is greatly affected by weather conditions, and the welding process is complicated and the construction speed is slow. High construction safety: when installing the bolted ball grid structure on site, the overhead welding operation is reduced, which reduces the fire risk and the safety hazard of the construction personnel due to welding sparks, high temperature and so on. At the same time, the operation of bolted connection is relatively simple and requires relative...

  Stadiums : these buildings need large column-free space to meet the needs of sports events and spectators, the bolt ball node mesh frame structure can provide large span and space, and at the same time, its beautiful and generous appearance can also meet the aesthetic requirements of the building.

  Welded ball Hot press moulding method Unloading: according to the design requirements, adopt semi-automatic gas cutting, profiling gas cutting, CNC flame gas cutting and other methods to unload the steel plate and cut out the round plate of suitable size, when unloading, it is necessary to reserve the welding shrinkage margin for fabrication and installation as well as the machining margins for cutting, edge planing, milling and so on. Heating: The blanks are heated uniformly to about 1050 ° C ± 50 ° C in a reflector furnace or resistance furnace after unloading. Pressing and moulding: Use hydraulic presses and matching convex and concave moulds to press and mould the heated slabs to produce hemispherical shapes. The demoulding temperature should not be lower than 650 ° C. After the hemisphere is pressed and moulded, the wall thickness should be reduced by not more than 13% and not more than 2.5mm according to the design and specification. Cutting bevel margin: can be processe...

  First, what is PC board? Many people have a misunderstanding of PC board , that PC board is acrylic board, is a piece of ordinary plastic board, easy to yellow and become brittle. In fact, PC board and acrylic board is not the same at all! Acrylic sheet is made of methyl methacrylate monomer MMA polymerisation, PC sheet is a high-performance engineering plastics polycarbonate processed. In addition to the two translucency look about the same, the performance of raw materials are not the same, we do not want to get confused. Second, what are the characteristics of PC sheet? PC Sheet is a material with excellent light transmission properties, its 6MM thickness of the transmittance of up to 82%, similar to glass, it is difficult to distinguish. In addition, the material also has excellent impact resistance, compared with the same thickness of ordinary glass, plexiglass and toughened glass, its impact resistance is 300 times, 30 times and 20 times higher respectively. Even when a 3kg...

  Concrete Steel Structure 1. The process is more complex, high quality requirements, thus requiring a more skilled professional team, and there are problems of interspersed types of work. 2. Sub-stress. Secondary stresses due to prestressing, creep and shrinkage effects, temperature variations, and bearing subsidence can be severe in continuous structures unless these are controlled or accounted for in the design. In prestressed continuous structures, it is interesting to note that these secondary stresses can often be exploited advantageously, and thus the secondary stresses will increase the economy of the structure. 3. Friction losses in continuous force bars. Friction losses can be significant if there are many reverse curves, if the curves have large deflection angles, or if the force bars are too long. In beams with corrugations or added axils, friction losses can be minimised by using straighter cables. The usual methods of over-tensioning and tensioning from both ends can ...

 There are a number of differences between bolted ball grids and welded ball grids in terms of fabrication, construction and design. The following are specific comparisons: 1. Manufacturing process: The manufacturing of bolted ball net frame is mainly carried out in the factory, using mechanical shot blasting to remove rust, and then spraying paint, plastic spraying or zinc spraying treatment to enhance corrosion resistance.  The steel pipe and welded seam of welded ball mesh frame can only be descaled manually on site, and then paint or fireproof coating is brushed. For the welded part, it needs to be descaled and brushed at a stage to maintain, which increases the cost of later use and affects the safety of the structure. 2. Construction process: 70% of the workload of bolted ball grid frame is prefabricated in the factory, 30% of the workload is installed at the site, only a wrench is needed to tighten the bolts at the site, which is easy and fast, and can be constructed ...