Pre-Engineered Steel Building with Grade 8 Seismic Rating, Fireproof Construction, and Custom Design
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Pre-Engineered Construction Structural Steel Industrial Real Estate
Building Basic Information Model NO. KXD-SSB54 Color Reference Ral Member of Engineering Team 20 Quality Control Daily Life Cycle 50 Years Construction Period 60 Days Customer Service Aftersale Service Porject Management Turnkey Solution Engineering Tools Autocad Type H-Section Steel Standard GB Forming Hot-Rolled Steel Carbon Structural Steel Q235 Residential Wall Structure Wall Support Warranty 30 Year Limited Warranty Transport Package Seaworthy Package Specification SGS / ISO/ BV Trademark KXD, Low-alloy High-tensile Structural Steel Origin China HS Code 9406900090 Production Capacity 5000ton/Month What is Pre-Engineered Steel Building? Pre-engineered steel buildings are steel structures built over a structural concept of primary members, secondary members, roof and wall sheeting connected to each other and various other building components. These buildings can be provided with different structural and non-structural additions such as skylights, wall lights, turbo vents, ridge ventilators, louvers, roof monitors, doors & windows, trusses, mezzanine floors, fascias, canopies, crane systems, insulation etc., based on customer requirements. All steel buildings are custom designed to be lighter in weight and high in strength. Applications of Pre-Engineered Steel Buildings Pre-Engineered Buildings are the most flexible solutions for contractors and owners. With advantages of low cost, high durability, perfect quality control and fast erection; PEBs are used for various applications: Industrial Applications
Commercial Applications
Public & Other Applications
Why Choose Pre-Engineered Steel Buildings? Cost Savings Price per square meter can be 25%-30% lower than conventional steel buildings. Site erection cost is low because of faster erection times and easier erection process. Quick Erection All steel components are fabricated at the factory and linked by bolts at the site. So the erection process is fast, step by step, easy to install and requires simple equipment. 60% less construction time required compared with traditional R.C.C (reinforced concrete) building. Flexibility Pre-engineered steel buildings are flexible in any requirement of design, easy to expand in the future and also economically with low transportation costs. Energy Efficiency Nowadays, pre-engineered buildings are the green solution for the environment with CO2 reduction, energy efficiency, and recyclability. Components of Pre-Engineered Steel Building
Primary Members / Main Frames Primary members are the main load carrying and support members of a pre-engineered building. The main frame members include columns, rafters and other supporting members. The shape and size of these members vary based on the application and requirements. Secondary Members / Cold Formed Members Secondary structural framing refers to purlins, girts, eave struts, wind bracing, flange bracing, base angles, clips and other miscellaneous structural parts. Purlins, girts and eave struts are cold formed steel members which have a minimum yield strength of 345 MPa (50,000 psi) and will conform to the physical specifications of GB/ISO/CE or equivalent. Roof & Wall Sheets/Panels Standard steel panels are 0.3, 0.4, 0.5 mm or 0.6 mm thick and have a minimum yield strength of 345 MPa. Steel panels are hot dipped and galvanized with zinc or zinc-aluminium coating. The base material is pretreated, before applying a corrosion resistant primer and top coat. The combined thickness of the painted film is 25 microns on the front side and 12 microns on the reverse side. Other Building Accessories Other building accessories include anchor bolts, fasteners (bolts, nuts, turnbuckle, expansion bolts), gutters, downspouts, doors, windows, ventilators, skylight panels, louvers and all other building-related materials. Manufacturing Process and Quality Control Material Receiving Procedure
Material Preparation Design and Development department creates structural drawings. Production department prepares items according to drawings: Preparation of Plates
Preparation of Beams/Tubes
Fit-up Process Fabrication drawings issued to production supervisor. Fabricators collect prepared beams and connection details. End plates, gusset plates, stiffeners, purlin cleats, stay angle cleats fixed in appropriate places by tack welding. Completed fit-up offered to QC for inspection. Welding & Grinding Submerged Arc Welding Procedure
MIG Welding Procedure
Blasting Process
Painting Process Application of paint typically done once per day after blasting completion. QC inspection of blasted surfaces before primer application. Ambient conditions checked and recorded:
Paint application primarily by Airless spray. Quality checks for shelf life, temperature, batch number. Monitoring of mixing ratio, tip size, agitation method, and pot life. Experienced spray applicators with appropriate PPE. Specification of Painting System:
Loading and Shipping
Quality Standards & Control With 20 year warranty in the steel building industry, our company maintains strict quality standards. We have acquired ISO9001 and CE certificates. Following standards are strictly adhered to for design and fabrication:
Fillet Weld Size Quality Control Purpose To ensure the quality of fillet weld, meeting technical requirements of welded members and improve standardization of fabrication. Application Scope This manual applies for design, fabrication and inspection of fillet weld size. Fillet Weld Leg Size Definition Length of catheti from maximum isosceles triangle drawn from section of fillet welding seam. Fillet Weld Leg Size Requirements
Selection of Fillet Weld Size
Minimum Fillet Weld Size Chart
H Section Manufacturing Equipment and Process Steel plate cutting → H section assembly → Automatic welding → H section strengthening → Assembly → Manual welding → Shot blasting → Painting → Storage Portable CNC Fire-cutting Machine Model: CNCDG-1530 | Application: Steel plate cutting (5-100mm),
beveling | Features: Small, easy-to-move, for regular/irregular
components Straight Flame Cutting Machine Model: DZCG-4000A | Application: Steel plate cutting (5-100mm),
flange/web plate cutting | Effective cutting width: 3200mm CNC Cutting Machine Model: CNC-4000C | Application: Steel plate cutting (5-100mm),
irregular component cutting | Effective cutting width: 3200mm Radial Drilling Machine Model: Z3050*16/1 | Application: Maximum drilling diameter φ50mm |
Purpose: Component bolt-connection holes Puncher Machine Model: JH21-400 | Application: Maximum stamping pressure-400 ton |
Purpose: Plate punching, blanking, bending, shallow stretching Shearing Machine Model: Q11Y-25*2500 | Application: Cutting width 2500mm, thickness
3-25mm H Section Steel Assembly Machine Model: Z20B | Application: H type assembly | Capacity: Flange width
150-800mm, web height 160-2000mm Gantry-type Submerged Arc Automatic Welding Machine Model: LHA5ZB | Application: Assembly welding of H section steel |
Maximum cross section: 800mm×2000mm H Section Steel Strengthening Machine Model: YTJ60B | Application: Correcting deformation of I/H section
flange | Capacity: Flange width 200-1000mm, thickness ≤60mm H Section Flange Strengthening Machine Model: HYJ-800 | Application: Correcting flange deformation |
Capacity: Flange width 160-800mm, thickness ≤40mm Shot Blasting Machine Model: QH1525 | Application: Shot blasting of section steels |
Capacity: 10 ramming heads, entry size 1500×2500 | Grade: Sa2.5 Airless Sprayer Model: CPQ9CA | Application: Surface paint of structural members |
Capacity: 56 L/min, air consumption 50-1200 L/min | Pressure ratio:
32:1 Manufacturing Process Details I. Steel Plate Cutting H section steel plate checked for design compliance. Quality-focused cutting with material optimization. Professional setting-out for precision. CNC cutting preferred with high-purity gases (98.0% acrylic gas, 99.99% liquid oxygen) for smooth, notch-free surfaces. Special imported cutting machine for grooves. II. H Section Steel Assembly Assembly on imported H section production line. 4 hydraulic positioning system for flange/web plate alignment. CO2 gas shielded welding for fixing. III. Automatic Welding H section members hoisted into gantry-type submerged arc automatic welding machine. Welding according to specified sequence and parameters. Preheating for ultra-thick plates using electrical heaters. IV. H Section Steel Strengthening Correction of flange flatness using strengthening machines. Flame correction for perpendicularity when needed. Side bending correction. Flame temperature controlled at 600-800ºC. V. Simulated Assembly of Component
VI. Manual Welding Precision manual welding for specific applications and complex joints. VII. Shot Blasting Surface preparation using 10-ramming heads shot blasting machine. Capable of handling members up to 1200×2000 size. Achieving Sa2.5 surface preparation grade. VIII. Painting Even, flat, glossy painting without cracking, peeling or pin holing. Standard thickness: 150μm indoor, 125μm outdoor (-25μm allowable deviation). Coating specifications:
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