Fire-Retardant Windproof Seismic Resistant Multi-storey Steel Structure Building Prefab Office Tower Q235/Q355 Steel

Our multi-storey steel structure building adopts a three-dimensional layered design, which increases storage and production area by 100%-200% with the same floor area, perfectly solving the problem of land shortage. Each floor features a large-span column-free design with a span of up to 8-30m, enabling heavy equipment to be placed on upper floors and supporting large-area flexible layout. The internal space can be freely divided into production areas, storage areas and office areas according to business needs, realizing integrated operation of "production + storage + office" and improving operational efficiency.Constructed with high-strength Q355 steel, the building has a floor load capacity of ≥800kg/㎡, fully meeting the needs of heavy cargo stacking and high-intensity industrial production. It achieves 12-grade wind resistance and 9-grade seismic resistance, with a rigid overall frame that can withstand typhoons, earthquakes and other extreme disasters, ensuring high safety. The dual anti-corrosion process of hot-dip galvanizing and fluorocarbon paint (zinc coating ≥80μm) effectively prevents rust and corrosion, extending the service life of the steel structure to 30-40 years. The B1-grade fire protection design, with steel beams and columns sprayed with fireproof coating and independent fire protection interfaces on each floor, fully guarantees the safety of multi-layer space.85% of the building components are prefabricated in the factory, with bolt-spliced installation that allows the entire multi-storey building to be completed in 30-45 days, shortening the construction period by 60% compared with concrete buildings. The lightweight steel structure has low self-weight, reducing foundation construction costs by 30%. No large hoisting equipment is required, which significantly saves labor and transportation costs. The later maintenance cost is low, with anti-corrosion and anti-rust features eliminating the need for frequent renovation, and the long-term use cost is 40% lower than that of concrete multi-storey buildings. What’s more, the building supports floor-by-floor renovation and floor addition, adapting to the space needs of enterprises in different development stages with convenient and low-cost secondary transformation.Each floor is independently equipped with ventilation, lighting and thermal insulation systems, making it suitable for different floors to be used as production workshops, high-density warehouses and office buildings. Reserved interfaces for freight elevators, passenger elevators and fire exits support the integration of intelligent logistics management systems, realizing efficient vertical operation of goods and personnel. A variety of enclosure materials are available, including color steel plates, rock wool sandwich panels and glass curtain walls, balancing the needs of thermal insulation, fire protection and corporate image display. The building is widely applicable to electronics manufacturing, light industry processing, e-commerce warehousing and large commercial complexes, providing customized solutions for enterprises of all scales.We provide comprehensive customization services for multi-storey steel structure buildings: the number of floors can be customized from 2 to 8, and each floor has a span of 8-30m and a floor height of 3-6m, meeting the space layout needs of different industries. We support customization of frame-type and frame-shear wall-type structures, adapting to the full-scenario needs of high load-bearing and high stability. Small-batch customization is available with a minimum order of 1000 sqm, which is especially suitable for enterprises in areas with low plot ratio to expand space efficiently without increasing land occupation.