For Multi-Storey Industrial Buildings, Choose CS Structure

CS Frame Structure is an innovative construction solution independently developed by OPENBUILDING for multi-storey frame buildings. It adopts factory-manufactured steel CS components, rapid on-site assembly, and cast-in-place concrete.
By fully leveraging the tensile strength of steel and the compressive strength of concrete, CS Structure delivers efficient load transfer and significantly enhances floor load capacity. With no formwork or shoring required, joint installation becomes faster and more convenient—helping shorten the construction schedule, reduce on-site labor, and lower overall project cost.

The CS frame structural system is suitable for various span and load requirements and can be widely applied to multi-storey and high-rise industrial and commercial buildings. It demonstrates outstanding performance in terms of safety, applicability, cost-effectiveness, and construction efficiency, and has been well recognized by the market. With a high level of prefabrication, it aligns with the development trend of prefabricated construction and supports low-carbon, environmentally friendly development goals such as energy saving and emission reduction.

Key Components of the CS Frame Structure

CS Column  

No formwork. No shoring. Excellent fire resistance. High ductility.
1.Concrete-filled steel tubes at the four corners provide strong axial and flexural load capacity as well as high stiffness, while improving the seismic performance of the member.

2.Transverse-ribbed corrugated steel plates on all four sides offer lateral confinement to the core concrete, eliminating the need for casting formwork and delivering high shear resistance.

3.The steel CS shell ensures reliable local stability and lateral load capacity, while enabling easier transportation and faster installation on site. 

Compared with conventional reinforced concrete columns with the same reinforcement ratio, CS Columns deliver superior overall performance.

CS Beam  

1.The outer shell is formed by corrugated web plates, resulting in a lightweight structure.

2.Built-in ducts for prestressing strands are provided, enabling post-tensioning construction.

3.After on-site lifting and positioning, concrete is cast in place, eliminating the need for high-level formwork and shoring.

4.With high stiffness and large load capacity, the CS Beam ensures fast and safe construction.

Optimized Joint Design  

1.High shear resistance and superior strength

2.Excellent ductility and outstanding seismic performance

3.Bolt-free installation, reducing cost and improving efficiency

Structural Design Software: [YJK] [JIAGOU]

OPEN BUILDING has commissioned YJK to develop a dedicated analysis software for the CS Frame Structure. With this tool, CS Columns and CS Beams can be modeled and analyzed directly using their actual cross-sections, enabling integrated structural analysis and reinforcement design—significantly improving design efficiency.

The floor load capacity of the CS Structure can be designed to meet requirements ranging from 1 to 5 tons, depending on the project design.

Typical column grid options include: 9×9 m, 12×12 m, 12×16.5 m, 16×24 m, and 24×24 m.

Intelligent Manufacturing

OPENBUILDING has participated in the R&D of an intelligent production line for CS components, featuring automated assembly, dual-station automatic welding, and automatic flipping—significantly improving both production efficiency and product quality.

CS Structure Project Portfolio

CS frame structural system projects have cumulatively exceeded 4,000,000 m2, earning strong recognition from both clients and industry professionals. It delivers a highly cost-effective industrial space solution featuring high quality, high efficiency, and excellent value.

Industrial Plant Projects

Warehousing & Logistics Projects