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Heavy Steel Structural System

GSMOD’s heavy-duty steel structure system is designed to comply with international building and safety standards, forming the core load-bearing framework of modular buildings and thereby delivering exceptional durability, stability, and long-term structural performance.

Modular Building Connection Structure Diagram

Connection Method for Building Modules in Structures of Four Stories or Less:

Connection methods for multi-story and high-rise building modules:

Structural connection among structural modules:

Heavy Steel Structures

The heavy steel structural system serves as the primary load-bearing framework of modular buildings, providing exceptional strength, stability, and long-term durability. Manufactured using high-strength galvanized steel, the structure is designed to withstand demanding environmental conditions, including strong winds, seismic activity, and heavy loads. Through precise factory fabrication and strict quality control, each structural component ensures dimensional accuracy and reliable performance during transportation, installation, and long-term operation. This robust structural system enables modular buildings to achieve high levels of safety, structural integrity, and compliance with international construction standards.

Steel Fabrication Process

Steel Cutting

Within the steel cutting workshop, high-strength structural steel undergoes precision cutting in strict accordance with detailed engineering drawings. The facility is equipped with a fully automated CNC laser cutting system—including a HaimuXing TP12056 Pro tube laser cutter—enabling the efficient and high-precision processing of both steel plates and structural tubing. This advanced equipment ensures dimensional accuracy, surface finish quality, and component consistency, thereby laying a solid and reliable foundation for the modular structural framework.

Steel Forming

After cutting, steel components are transferred to the forming stage, where they are processed using advanced forming equipment. The workshop features a fully automated stamping production line equipped with 800-ton high-capacity automatic stamping machines. These machines operate at high speed to achieve integrated forming of key components such as top panels and side panels. This automated process improves production efficiency while ensuring dimensional accuracy and consistent quality, enabling all components to meet strict engineering standards and assembly requirements.

Welding & Assembly

Structural components are assembled and welded in the welding and assembly workshop using advanced welding technologies and automated production equipment. The facility features one of the longest residential welding assembly lines in China, enabling efficient and large-scale modular production. Operating under a 24-hour A/B shift system, the production line ensures stable output and consistent manufacturing capacity. In this stage, the six primary structural components are precisely assembled and welded into a six-sided modular frame, creating a strong and stable structural skeleton for the building while ensuring that all connections meet strict structural load requirements.

Surface Treatment & Coating

To enhance durability and corrosion resistance, steel components undergo surface treatment in the specialized coating workshop. The pre-treatment line meets the industry-leading Sa2.5 rust removal standard, ensuring optimal surface preparation before coating. The painting process consists of six controlled stages—primer spraying, drying, intermediate coating, drying, top coating, and final drying—creating a uniform and fully protected paint layer. Every component is further tested in a rain simulation laboratory to verify waterproof performance. This strict process enables the structural system to achieve long-term corrosion and waterproof protection with a service life exceeding 25 years.

Applications of Heavy Steel Structures

Multifunctional Structural Solutions for Modern Architecture: Renowned for their exceptional strength, durability, and design flexibility, heavy steel structures have gained widespread application within the realm of modern architecture.

These structures are constructed from a framework of robust steel columns and beams, interconnected using high-strength bolts and precision welding techniques. They serve not only to effectively support floor slabs, roofs, and walls but also to ensure the overall stability and safety of the entire structure. Furthermore, this structural system facilitates spacious and open interior layouts while significantly enhancing construction efficiency.

Thanks to these inherent advantages, heavy steel structures have emerged as the ideal solution for a diverse range of projects, with applications spanning numerous sectors—including modular homes, apartment building, hotels, commercial complexes, and public buildings.

GSMOD Certifications and Quality Standards

GSMOD follows internationally recognised management standards throughout the design, manufacturing and delivery of modular buildings and heavy-steel structures. Our certifications demonstrate our commitment to consistent quality, environmental responsibility, occupational health and safety, and reliable project delivery.