Our GLL Scaffolding Cross Brace adopts a ring lock system, which realizes the quick connection of vertical poles, horizontal poles and diagonal braces through eight-hole node plates. Its design breaks through the complex assembly logic of traditional scaffolding, and only a small number of basic components are needed to build a stable frame, significantly improving the construction efficiency. According to actual test data, the construction efficiency of the GLL system is 40% higher than that of traditional fastener scaffolding, and the construction period can be shortened to 1/3.
GLL Scaffolding Cross Brace vertical connection tolerance is strictly controlled within ±1.8mm, which is much lower than the industry average. This precision advantage ensures that the node bearing capacity decay rate is less than 6% during high-altitude operations, and even at a height of more than 50 meters, it can still maintain 94% of the rated load capacity. In addition, its vertical deviation control standard (0.3%) is in line with the US ACI 117-06 concrete structure specification, effectively reducing the risk of structural instability caused by eccentric loads.
The main body of our GLL cross support is made of Q345B low-alloy structural steel, with a yield strength of 345MPa, which is 1.5 times that of traditional Q235 steel pipes. This material upgrade brings three core advantages:
Balance of light weight and high strength: Under the premise of ensuring that a single pole bears 60kN, the weight is reduced by 20%, which is convenient for transportation and on-site operation;
Improved deformation resistance: In the simulated seismic wave test, the residual deformation of the GLL cross support is only 60% of similar products;
Breakthrough in corrosion resistance: Through the hot-dip galvanizing process, the zinc layer thickness reaches more than 80μm, and the neutral salt spray test is more than 2000 hours without rust, and the service life is extended by 3-5 years compared with ordinary galvanized parts.
The wedge-shaped self-locking joint of our GLL cross brace is the core of its safety performance. The design achieves a rigid connection by hammering wedges, with an anti-slip coefficient of 0.45, far exceeding the industry standard requirements. Under sudden impact loads (such as strong winds or construction collisions), the node can automatically absorb energy and maintain structural integrity, avoiding the defects of traditional bolt connections that are easy to loosen.
In response to different engineering needs, GLL provides two system specifications, 48mm and 60mm, which are suitable for all-scenario applications from civil buildings to large-scale infrastructure:
High-rise buildings: In the Dubai Infinity Tower (550 meters) project, GLL cross supports successfully coped with the challenges of desert climate temperature differences;
Bridge construction: In the Hong Kong-Zhuhai-Macao Bridge artificial island project, its salt spray corrosion resistance has withstood the test of the marine environment;
Special-shaped structures: The modular design can quickly build curved or spiral scaffolding to meet the complex shape requirements of opera houses, stadiums, etc.
