Kolon E&C Develops PC Alternative Construction Method 'Composite Beam System' "Shortening Structural Frame Period"

Modular KG Composite Beam Structure Bending Test Overview / Photo by Kolon Global

[Asia Economy Reporter Hwang Seoyul] Kolon E&C, a subsidiary of Kolon Global, has developed a new construction method called the ‘KG Composite Beam System’ together with Gaurian.

Kolon E&C announced on the 18th that the ‘KG Composite Beam System,’ jointly developed with Gaurian, has obtained technical certification from the Korean Society of Steel Construction. Through technical certification reviews including ▲structural bending tests ▲finite element analysis ▲member design formulas, structural safety was secured. The ‘KG Composite Beam System’ is a construction method that replaces precast concrete (PC), which has recently seen high demand and is difficult to order. A composite beam refers to a beam where the steel beam and the concrete floor closely bonded to it act as a single unit.

The ‘KG Composite Beam System’ allows member fabrication in the factory using 2 to 4 prefabricated ‘ㄷ’-shaped channels without the need for separate molding processing, enabling member fabrication with simple cutting work. The O.S.C. method was used, which involves modular fabrication of ‘ㄷ’ channels and wire truss deck slabs in the factory.

Kolon E&C also highlighted the shorter structural period compared to existing PC. The column-beam joints apply a weld-free connection, reducing the number of bolts per column by about 30%. Minimizing on-site welding allows shortening the structural period by more than 30%.

This system can also be applied to various buildings with large floor areas and strong modular characteristics, such as knowledge industry centers and offices. Kolon E&C plans to expand its business from increasing orders in special construction fields like negative pressure wards to the housing sector and non-residential projects, eventually extending to high-rise modular buildings. They also plan to enter the building materials business derived from modular construction technology through technical collaboration with partners.

A Kolon E&C official said, “If the PC method, which is currently facing ordering difficulties due to concentration in logistics centers and large factory lines, is replaced by the ‘KG Composite Beam System,’ it is expected that shortages in volume will be resolved.” He added, “We will lead the modular technology trend and secure the market with differentiated technology.”

This content was produced with the assistance of AI translation services.