• Sale03-QD steel building

Prefabricated steel buildings are a collection of several different components which are engineered and manufactured at a steel fabrication workshop and delivered to the job site for assembly. Each component is designed by our engineer and will be pre-cut, pre-welded, and pre-drilled, providing ease of assembly.

Primary steel structure

The primary steel structure of a steel building will be made up of several components. These components can be customized to meet your budget and the needs of your structure.

• Rigid Frames – Each building will be made up of two or more rigid frames depending on the building length. Interior rigid frames are designed to support half of each adjacent bay. The interval between each rigid frame is called “bay spacing”.
• Beams and Columns – Each frame will normally have two columns, usually H-beam columns, that can be straight or tapered.
• Rafters – Each rigid frame will also have two rafters, which, together with the columns, will form the basic shape of the building.
• Trusses– Trusses provide alternative support for the roof or upper floors, consisting of a latticework of bracing metal between the top and bottom chords.
• Lean-to/Single Slope – These are a style of rigid frame to create the style of the primary framing.

Secondary structure

All secondary structure elements are designed and engineered specifically to your building’s size, application, and load requirements. Extreme load requirements may necessitate larger gauge and depth. All the secondary framing elements are required for structural stability and will transfer load to the main frame. Pre-welded or bolted cleats make attaching your secondary framing easy.

• Girts and Purlins – Girts run from column to column around the building to support wall panels, while purlins run from rafter to rafter in a similar manner and will support the roof system.
• Wall and Roof Braces – There are three ways to brace your building: x-bracing, wind columns, and portal frames. X-bracing is the most economical, but has limitations in installing doors or windows. Wind columns and portal frames will allow you to keep the bay open.
• Eave Struts – Eave struts are placed at the juncture between the wall and roof, where the purlins begin and the girts stop.

Roof and wall system(coverage)

• Roof & Wall Panels: Metal sheets (sometimes insulated with sandwich panel) for weather protection, aesthetics, and thermal/sound insulation.

• Base bolts/Anchor Bolts: Connect the steel frame to the foundation.
• Trimming: Covers corners, seams, eaves (e.g., corner trim, ridge caps).
• Doors & Windows: Functional openings with frames, for ventilation and natural light.

Connections

Fasteners: The fasteners that are required for the majority of pre-fabricated steel structures are foundation Bolts (anchor bolts,chemical bolts u-bolts, etc.), high strength bolts, normal bolts, self screws, Inserts, Weld studs, Threaded studs,etc.

No matter the size or use of your steel building, Qingdao Steel Building Co.,Ltd can provide you with the right primary framing, secondary framing, and roof and wall coverage,bolts, windows and doors, etc. Our team of specialists are consistently exceeding client expectations, and if you’re ready for a quote on your next steel structure project, please feel free to contact us!