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Steel Structure Building
Created with Pixso. Prefab Steel Building with Q355 Welded H Section Steel, Seismic Resistance Up to 8 Grade, and 50 Years Life Cycle

Prefab Steel Building with Q355 Welded H Section Steel, Seismic Resistance Up to 8 Grade, and 50 Years Life Cycle

Brand Name: KXD
Model Number: KXD-SSW1059
MOQ: 200 Square Meters (MOQ)
Price: US$50.00-100.00
Delivery Time: 30days
Payment Terms: T/T
Detail Information
Place of Origin:
Qingdao
Certification:
ISO, SGS, CE, BV
Design Software:
PKPM, Tekla Structures, CAD
Product:
Steel Structure
Thickness Of Panel:
50mm, 75mm, 100mm, 150mm, 200mm, 250mm
Color:
Grey
Column And Beam:
Q355 Welded H Section Steel
Treatment For Steel:
Painting Or Galvanization
Processing Service:
Bending, Welding, Cutting
Seismicresistance:
Up To 8 Grade
Cerification:
ISO9001,CE
Surface Finished:
Blast / Painted/ Galvanized
Packaging Details:
pallet
Supply Ability:
5000ton/Month
Highlight:

Q355 Welded H Section Steel Prefab Steel Building

,

Seismic Resistance Up to 8 Grade Steel Structure Warehouse

,

50 Years Life Cycle Pre-engineered Steel Building

Product Description
Prefab Steel Frame Structure Warehouse Building Construction and Contractor
Basic Information
Model NO.KXD-SSB54
Color ReferenceRal
Member of Engineering Team20
Quality ControlDaily
Life Cycle50 Years
Construction Period60 Days
Customer ServiceAftersale Service
Project ManagementTurnkey Solution
Engineering ToolsAutocad
TypeH-Section Steel
StandardGB
FormingHot-Rolled Steel
Carbon Structural SteelQ235
Residential Wall StructureWall Support
Warranty30 Year Limited Warranty
Transport PackageSeaworthy Package
SpecificationSGS / ISO/ BV
TrademarkKXD, Low-alloy High-tensile Structural Steel
OriginChina
HS Code9406900090
Production Capacity5000ton/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.
Pre-engineered Construction Structural Steel Industrial Building Model
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
  • Factories
  • Workshops
  • Warehouses
  • Cold Storages
  • Steel Mills
  • Assembly Plants
Industrial Pre-engineered Steel Building Application
Commercial Applications
  • Showrooms
  • Supermarkets
  • Offices
  • Shopping Centers
  • Exhibition Halls
  • Restaurants
  • Logistic Centers
  • Multi-purpose Buildings
Commercial Pre-engineered Steel Building Application
Public & Other Applications
  • Schools
  • Hospitals
  • Conference Halls
  • Laboratories
  • Museums
  • Stadiums
  • Farms
  • Utility Shelters
  • Pump Stations
  • Aircraft Hangars
  • Airport Terminals
Why Choose Pre-engineered Steel Buildings?
1. 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.
2. 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.
3. 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.
4. 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
  • Secondary Members / Cold Formed Members
  • Roof & Wall Panels
  • Accessories, Buyouts, Crane System, Mezzanine System, Insulation, etc.
  • Sandwich Panels
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.
Primary Members of Pre-engineered Steel Building
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).
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.
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 & Quality Control
A: Material Receiving Procedure
  • Verify receiving documents and material quantity
  • Submit for QC inspection
  • Visual inspection for surface condition and damages
  • Dimensional inspection (length, width, depth, thickness)
  • Verify material certificates and heat numbers
  • Prepare Incoming Material Inspection Report
B: Material Preparation
Preparation of Plates:
  • Transfer drawings to plate processing machine
  • Automated punching, drilling, and plasma cutting
  • Precision processing according to NC files
Preparation of Beams/Tubes:
  • Automated cutting and drilling
  • Transfer to fit-up section after processing
C: Fit-up Process
  • Issue fabrication drawings to production supervisor
  • Collect prepared beams and connection details
  • Fix end plates, gusset plates, stiffeners, purlin cleats
  • Tack welding in appropriate places
  • QC inspection after fit-up completion
Fit-up Process of Steel Structure
D: Welding & Grinding
Submerged Arc Welding Procedure:
  • Plan jobs for welding
  • Clean welding locations free of dust, oil, grease
  • Set wire feed and voltage parameters
  • Maintain fillet size per GB50661-2011 standard
  • Remove spatters and slag after welding
  • Grind burrs, sharp edges and excessive reinforcements
  • QC inspection after completion
MIG Welding Procedure:
  • Similar process with appropriate MIG parameters
  • Maintain quality standards throughout
Welding Process in Steel Manufacturing
E: Blasting Process
  • Tool Box Talk before operations
  • Record fabricated steel ID for traceability
  • Clean material with high pressure air
  • Automated blasting through conveyor system
  • Achieve SA 2/2.5 surface preparation grade
  • Full PPE required for personnel
Blasting Process in Steel Manufacturing
F: Painting of Fabricated Material
  • QC inspection of blasted surfaces
  • Check ambient conditions (temperature, humidity)
  • Apply primer using Airless spray method
  • Monitor wet film thickness during application
  • Three-coat painting system: Primer + Second coat + Third coat
  • Touch-up at site after erection
Painting Process of Steel Structure
G: Loading and Shipping
  • Receive finished components from painting department
  • Store properly job-wise in yard
  • Arrange trucks from contract companies
  • Begin loading after clearance confirmation
  • Maintain copies of all shipping documents
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 and follow these standards:
  • GB/T1591-2008/2018
  • GB/T11263-2010
  • GB/T 2518-2008
  • GB/T12754-2006
  • GB/T 1228-2006
Fillet Weld Size Quality Control Example:
To ensure quality of fillet weld meeting technical requirements and improve fabrication standardization.
Form of Fillet Weld Leg K (Fillet Weld Size) Value Note
Fillet weld without groove K=(0.7~1)t and≤15mm For most steel structure buildings
Fillet weld without groove K=(0.5~0.6)t For strengthening ribs and secondary members
Fillet weld with groove (CJP and PJP) K=t/4 and K≤10mm For most steel structure buildings
Fillet weld with groove (CJP and PJP) K=t/2 and K≤10mm Important members (crane beams)
Parent Metal Thickness (t)(mm) Minimum Fillet Weld Size
t≤63 (minimum 5 for crane beam)
65
126
t>208
H Section Manufacturing Equipment and Process
Steel plate cutting → H section assembly → Automatic welding → H section strengthening → Assembly → Manual welding → Shot blasting → Painting → Storage
I. Steel Plate Cutting
  • Quality check of steel plates
  • CNC cutting equipment preferred
  • High purity gases for smooth cutting
  • Special imported cutting machine for grooves
Equipment: Portable CNC Fire-cutting machine, Straight flame cutting machine, CNC cutting machine, Radial drilling machine, Puncher machine, Shearing machine
II. H Section Steel Assembly
  • Assembly on imported H section production line
  • Hydraulic positioning system
  • Adjust parallelism and perpendicularity
  • CO2 gas shielded welding for fixing
Equipment: H section steel assembly machine (Z20B)
III. Automatic Welding
  • Gantry-type submerged arc automatic welding
  • Follow specified welding sequence and parameters
  • Preheating for ultra-thick plates
Equipment: Gantry-type submerged arc automatic welding machine (LHA5ZB)
IV. H Section Steel Strengthening
  • Correction of flange flatness
  • Flame correction for perpendicularity
  • Temperature control: 600~800ºC
  • Side bending correction
Equipment: H section steel strengthening machine (YTJ60B), H section flange strengthening machine (HYJ-800)
V-VIII. Additional Processes
  • Simulated assembly of components
  • Manual welding for specific applications
  • Shot blasting to Sa2.5 grade
  • Painting with specified thickness standards
Equipment: 10-ramming heads shot blasting machine (QH1525), Airless sprayer (CPQ9CA)