Custom Size Steel Structure With Mezzanine Floor For Office Storage Integrated Building

The custom-size steel structure building with mezzanine floor is a multi-functional integrated construction solution specially designed for dual office and storage application scenarios. Tailorable in overall dimensions, floor height, mezzanine span, and functional layout, this prefabricated steel building perfectly solves the space conflict between office work and goods storage for enterprises, factories, logistics parks, and small and medium-sized industrial parks. Different from traditional single-function steel warehouses or simple office buildings, this integrated structure integrates professional storage bearing capacity and standardized office working environment, realizing one-space multi-purpose and greatly improving land and space utilization efficiency.

The whole building adopts high-quality hot-rolled steel as the main frame material, with a detachable and assembled mezzanine floor system in the middle layer. The ground floor can be used for raw material storage, finished goods stacking, equipment placement, and logistics sorting, while the upper mezzanine floor is customized as a standardized office area, meeting daily office work, meeting communication, staff rest and other office demands. The building supports full personalized customization, including adjustable mezzanine bearing capacity (ranging from 200kg/㎡ to 1000kg/㎡), customizable wall and roof materials (color steel sandwich panel, fireproof plate, galvanized steel plate), and flexible configuration of doors, windows, ventilation and lighting systems. In addition, the steel structure building features excellent fire resistance, wind resistance, earthquake resistance and corrosion resistance, adapting to various outdoor and indoor industrial environments, with a service life of up to 30-50 years under normal maintenance conditions.

This integrated steel building abandons the defects of long construction period, high cost and poor flexibility of traditional concrete buildings. It adopts modular prefabricated design, with all steel components pre-processed in the factory and assembled on site, which greatly shortens the project cycle. It is an ideal space solution for enterprises to quickly expand office and storage functions, and is widely applicable to industrial workshops, logistics warehouses, factory auxiliary buildings, and small business comprehensive venues.

The custom office-storage integrated steel structure with mezzanine belongs to the category of light steel prefabricated building in steel structure classification, and can be further divided by structural form, material type and functional characteristics, with core professional knowledge covering structural performance, material standards and application attributes.

In terms of structural classification, it is mainly classified as frame-type steel structure. The main load-bearing system is composed of steel columns, main steel beams and secondary steel beams, forming a stable frame stress system. The mezzanine floor adopts a secondary frame structure matched with the main building frame, which does not occupy the original building foundation space and realizes layered load-bearing. According to the material thickness and bearing capacity, it belongs to light steel structure, which is different from heavy steel structure used in large-span industrial workshops and high-rise buildings. Light steel structure has the advantages of light self-weight, low foundation load, convenient installation and low comprehensive cost, which is more suitable for medium and small-span office and storage integrated buildings.

In terms of material classification, the product adopts galvanized steel structure and spray-painted steel structure as conventional configurations. The hot-dip galvanizing process can effectively isolate air and moisture, prevent steel from rust and corrosion, and is suitable for humid outdoor environments; surface spray-painted treatment can enhance wear resistance and beautify the appearance, meeting the neat and standardized requirements of office areas. The mezzanine floor uses high-strength steel grating or patterned steel plate, with anti-slip and load-resistant characteristics, and the floor surface can be covered with fireproof and anti-wear decorative materials to meet office environmental standards.

Core professional performance knowledge includes three major indicators: seismic resistance, wind resistance and fire resistance. The steel frame has good ductility, which can effectively buffer seismic impact and meet the seismic fortification requirements of most regional construction standards. The overall closed frame structure has strong wind resistance, capable of resisting strong winds of level 10-12. For fire protection, the steel components are treated with fireproof coating, and the wall and roof adopt fireproof color steel sandwich panels, with a fire resistance limit of more than 1 hour, complying with industrial building fire safety specifications. In addition, the steel structure has good recyclability, all components can be disassembled, reused and recycled, which is in line with green and environmental protection building standards.

The production of custom mezzanine office-storage integrated steel structure strictly follows standardized industrial production procedures, from design customization to finished product delivery, with 8 core production links to ensure product accuracy, stability and safety performance.

First is customized design and technical confirmation. According to the customer's site size, functional demands (storage load, office area, number of floors), local wind and snow load parameters and construction standards, the technical team completes the overall structural design, draws construction drawings and component processing drawings, and confirms the details of mezzanine span, beam and column specifications, material types and accessory configurations with customers to ensure the design scheme meets actual use and safety standards.

Second is raw material procurement and inspection. Purchase national standard hot-rolled H-beam, channel steel, angle steel, steel plate and other raw materials, and conduct strict quality inspection, including material tensile strength, yield strength, thickness tolerance and anti-corrosion performance test. Unqualified raw materials are strictly rejected to ensure the basic quality of the steel frame.

Third is precision cutting and blanking. Adopt CNC automatic cutting machine to cut steel components according to processing drawings, with accurate cutting size and smooth section, avoiding burrs and dimensional errors. All component sizes are accurate to the millimeter level to ensure on-site assembly accuracy.

Fourth is welding and forming. Professional welders conduct full welding and spot welding treatment on beams, columns and mezzanine frame components. The welding process follows national steel structure welding standards, with no missing welding, virtual welding and crack defects. After welding, the components are corrected to eliminate welding deformation and ensure the flatness and verticality of the frame.

Fifth is surface anti-corrosion treatment. Remove rust, oil and impurities on the surface of steel components through sand blasting and polishing process. Then carry out hot-dip galvanizing or high-temperature spray-painted treatment to form a protective layer on the steel surface, improving corrosion resistance and service life.

Sixth is auxiliary component processing. Process wall panels, roof panels, mezzanine floor plates, door and window frames, connecting bolts, supports and other auxiliary accessories, and conduct standardized processing and quality inspection to match the main frame parameters.

Seventh is factory pre-assembly inspection. Complete trial assembly of the whole steel structure in the factory, check the assembly gap, structural stability, load-bearing coordination of mezzanine and main frame, adjust and modify individual unqualified parts to ensure zero error in on-site installation.

Eighth is packaging and delivery. Disassemble the pre-assembled steel components, classify and package them with protective films and wooden frames, mark the component numbers and installation sequence, and arrange professional logistics delivery to ensure no damage during transportation.

The installation of the custom mezzanine steel structure office-storage integrated building is efficient and standardized, with simple operation, short construction period and no large-scale construction waste. The whole installation process is divided into site preparation, main frame installation, mezzanine construction, enclosure installation, auxiliary facility debugging and acceptance delivery.

First is site foundation preparation. Level the construction site, compact the foundation ground, and carry out foundation embedding according to the design drawings, burying fixed embedded parts and anchor bolts to ensure the flatness and firmness of the installation foundation, which is the key to the overall stability of the steel building.

Second is main steel frame installation. Transport the main steel columns and main beams to the site, fix the steel columns on the embedded parts through anchor bolts, adjust the verticality and levelness of the columns, then install the main and secondary beams layer by layer, and fix the connecting parts with high-strength bolts to form a stable overall main frame structure. All bolt connections are tightened in place to avoid loose gaps.

Third is mezzanine floor system installation. Install the mezzanine supporting beams and secondary keels on the basis of the main frame, lay steel floor plates or reinforced concrete floor layers according to the load demand, fix the floor plates firmly, and install anti-slip edge guards and safety guardrails around the mezzanine to ensure the safety of office and walking. For heavy-load storage areas, reinforce the keel structure locally to improve bearing performance.

Fourth is enclosure and roof installation. Install color steel sandwich wall panels around the steel frame, seal the gaps tightly to ensure heat insulation, sound insulation and dustproof effects. Then install the roof panels, do waterproof treatment at the roof joints and edges to prevent rainwater leakage, and complete the installation of doors, windows, ventilation windows and other facilities.

Fifth is auxiliary facilities construction. According to the office and storage functional demands, install circuit lighting, ventilation systems, fire protection facilities, stairs and walking platforms, debug all supporting equipment to ensure normal use. The office area is treated with sound insulation and heat preservation to create a comfortable working environment, while the storage area is kept spacious and flat to meet goods stacking and handling demands.

Sixth is overall inspection and acceptance. After the completion of installation, conduct a comprehensive inspection of the whole building, including structural stability, bolt fastening, floor bearing capacity, waterproof and fireproof performance, safety protection facilities, etc. After confirming that all indicators meet national construction standards and customer design requirements, complete the project acceptance and delivery. The whole installation process can be completed in 3-7 days for conventional sizes, which is far more efficient than traditional concrete buildings.

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