The portal steel frame structure factory technology is mature and widely accepted by users, becoming the fastest-growing form of steel structure in the country at present. It can be designed with large spans and vast spaces, facilitating flexible internal layout and usage. It employs lightweight H-shaped steel to create the portal steel frame support, with C-shaped and Z-shaped cold-formed thin-walled steel for purlins and wall beams, and profiled steel sheets or lightweight sandwich panels for roof and wall enclosures. The portal steel frame structure system is assembled using high-strength bolts, ordinary bolts, self-tapping screws, and sealing materials as connectors.

The steel structure carport features an attractive appearance, unique design, and economical practicality. It is suitable for parking cars, bicycles, electric bikes, and more. It has advantages such as a large number of parking spaces, a long service life (the normal reasonable lifespan is 20 years), and a small footprint.

Steel structure houses often use portal steel structures, with exterior walls and roofs made of color steel sandwich panels. They have advantages such as earthquake resistance, typhoon resistance; rust and corrosion resistance; fireproof and heat-resistant; thermal insulation; and good sound insulation.

Steel structures have comprehensive advantages such as lightweight, easy installation, short construction period, good seismic performance, quick return on investment, and low environmental pollution. Currently, steel housing is one of the types of structures that have the least impact on urban environments. It has been widely adopted in the West and is referred to as "green building." Compared with traditional reinforced concrete structures, it has unique advantages in the three aspects of "high, large, and lightweight."

Color steel houses are lightweight, not significantly increasing the load-bearing capacity of the original building. The production and installation period for color steel houses is short, minimally affecting existing production and living conditions. The cost of color steel houses is low, about 20% lower than that of concrete structures. They are easy to assemble and disassemble, reusable, and have an earthquake resistance level of 6 or above.

Steel structure stairs have advantages such as high strength, strong seismic resistance, fast construction speed, elegant appearance, and diverse shapes. There are various forms of steel stairs, mostly featuring steel inclined beams as the main structural components, with the stair segments primarily using stepping boards. The railing is generally designed in a diagonal line form parallel to the inclined beams of the stairs.

Space frame steel structures can be used in public buildings such as gymnasiums, clubs, exhibition halls, theaters, and waiting halls of train stations. In recent years, they have also been increasingly used in industrial buildings such as warehouses, aircraft hangars, and factories. They are suitable for a range of applications, from small conference rooms a few meters in size to large industrial plants with spans of several hundred meters.

Steel structure roofs have comprehensive advantages such as light weight, factory manufacturing, quick installation, short construction periods, good seismic performance, rapid investment recovery, and minimal environmental pollution. Compared with reinforced concrete structures, they have unique advantages in the three aspects of "high, large, and light."

The steel structure glass canopy is made of stainless steel or steel materials and laminated tempered glass. The surface of the steel materials is treated with hot-dip galvanizing, fluorocarbon spraying, or electrostatic powder coating. Its characteristics are durability, brightness, beauty, and elegance, making it widely used in supporting facilities for large public places such as banks, hotels, and guesthouses.

Steel structure exhibition halls are widely used in large exhibition venues such as: steel structure auto exhibition halls, steel structure 4S stores, steel structure exhibition venues, steel structure service exhibition halls, platform-type steel structure exhibition halls, and various other exhibition venues and halls. They have a series of advantages including high strength, light weight, large spans, aesthetic appearance, minimal construction pollution, and recyclability.

Steel structure platforms, also known as work platforms, have a variety of structural forms and complete functionalities in modern applications. The biggest feature of their structure is the fully assembled design, which is flexible and can be designed and manufactured to meet site requirements, usage functionality, and logistics requirements based on different site conditions. They are widely used in modern storage situations.

The main characteristics of membrane structure and steel structure include "translucency," "energy saving," "acoustic effect," "durability," and "design." Membrane structure and steel structure have a light weight, simple and reliable structure, good shape, and self-cleaning properties. They are easy and quick to construct, making them suitable for various occasions, such as large stadiums, sports fields, skylights, exhibition halls, showrooms, various highway toll stations, gas stations, lobbies, carports, awnings, and leisure parks.

Color steel plates have the characteristics of being aesthetically pleasing, quick to construct, requiring no further decoration, being cost-effective, and environmentally friendly. They are commonly used for ceilings, partitions, walls, and fences in buildings such as factories, warehouses, offices, and dormitories. They possess advantages such as light weight, thermal insulation, high strength, bright colors, and flexible and quick installation. Common rolled products and profiles include types 820, 840, 900, etc.

The color steel plate mobile house has an attractive appearance, a full range of colors, simple construction, light weight, compact size, good thermal and sound insulation, and is easy to assemble and disassemble. It can be relocated and reused multiple times, making it economical and practical. It is suitable for bungalows, multi-story buildings, offices, school classrooms, markets, warehouses, and various storefronts. The ultra-dense light steel truss has a reasonable structure and meets the load-bearing performance standards. Its weight is one-thirtieth of that of concrete, and its thermal insulation coefficient fully meets the requirements for building insulation, allowing for fast construction.

The thermal insulation material used in color steel sandwich panels is primarily fiberglass cotton, which has good thermal insulation effects. The insulation boards used for external walls effectively avoid the "thermal bridge" phenomenon, achieving better insulation results. The thermal resistance value of R15 insulation cotton with a thickness of about 100mm is equivalent to that of a 1m thick brick wall.