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Steel Structure Building
Created with Pixso. CE Certified Fireproof Pre-engineered Steel Building with 50 Years Life Cycle

CE Certified Fireproof Pre-engineered Steel Building with 50 Years Life Cycle

Brand Name: kxd
Model Number: KXD-SSW1552
MOQ: 500-1,999 Square Meters
Price: US$49.00
Delivery Time: 30days
Payment Terms: T/T
Detail Information
Place of Origin:
Qingdao
Certification:
ISO CE
Product Fire Resistance:
Fireproof
Loadcapacity:
Designed According To Local Standards
Special:
Fire Sprinkler System Ready
Exterior Color:
Drawing Requirement
Roofing:
Sandwich Panel. Single Steel Sheet
Prefabrication:
Off-site
Main Steel Frame:
H Steel,Z Or C Purlin
Member:
Steel Column
Packaging Details:
pallet
Supply Ability:
50000ton/year
Highlight:

CE Certified Pre-engineered Steel Building

,

Fireproof Structural Steel Building

,

50 Years Life Cycle PEB

Product Description
H Section Steel Structural Beams Prefab Building Kits with CE Certification
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
Project 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
Pre-engineered Structural Steel Industrial Real Estate Building Construction
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.

Model of Pre-engineered Steel Buildings
Pre-engineered steel building model showing structural components and assembly
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 examples
Commercial Applications
  • Showrooms
  • Supermarkets
  • Offices
  • Shopping Centers
  • Exhibition Halls
  • Restaurants
  • Logistic Centers
  • Multi-purpose Buildings
Commercial pre-engineered steel building application examples
Public Applications
  • Schools
  • Hospitals
  • Conference Halls
  • Laboratories
  • Museums
  • Stadiums
Other Applications
  • 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

Pre-engineered metal buildings consist of following components:

  • 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 structural members and main frames 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) 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
  • Verify receiving documents and quantity of received material
  • Submit load for QC inspection
  • Visual inspection for surface condition and damages
  • Dimensional inspection for length, width, depth, thickness
  • Verify supporting documents like MTC
  • Prepare Incoming Material Inspection Report
Material Preparation

Design and Development department creates structural drawings. Production department prepares items as per drawings.

Preparation of Plates
  • Transfer drawings to storage device using expert software
  • Copy drawings into plate processing machine
  • Automated machine senses plate length and processes according to NC files
  • Punching of part mark on plate
  • Drilling of plates as per NC files
  • Plasma cutting of plates
Preparation of Beams/Tubes
  • Fabrication drawings prepared by design department
  • Automated cutting and drilling machine processing
  • Transfer to fit-up section after completion
Fit-up Process
  • Fabrication drawings issued to production supervisor
  • Fabricators collect prepared beams and connection details
  • Fix end plates, gusset plates, stiffeners, purlin cleats, stay angle cleats by tack welding
  • QC inspection after fit-up completion
Fit-up process of steel structural components
Welding & Grinding
Submerged Arc Welding Procedure
  • Plan jobs to be welded
  • Clean welding location free of dust, oil, grease
  • Set wire feed and voltage for welding
  • Maintain fillet size parameters per GB50661-2011 standard
  • Remove spatters and slag after welding
  • Grind off burrs, sharp edges and excessive reinforcements
  • QC inspection after completion
MIG Welding Procedure
  • Plan jobs to be welded
  • Clean welding location free of dust, oil, grease
  • Set wire feed and voltage for welding
  • Maintain fillet size parameters per GB50661-2011 standard
  • Remove spatters and slag after welding
  • Grind off burrs, sharp edges and excessive reinforcements
  • QC inspection after completion
Welding process in steel structure manufacturing
Blasting Process
  • Tool Box Talk performed for every task
  • Working area barricaded with information notices
  • Record ID of fabricated steel for traceability
  • Clean material with high pressure air
  • Automated blasting with six internally mounted wheels
  • Steel emerges fully cleaned (Grade - SA 2/2.5)
  • Full PPE required for personnel
Blasting process for steel surface preparation
Painting of Fabricated Material
  • QC inspection of blasted surfaces before priming
  • Check ambient conditions: surface temperature 3˚C above dew point, relative humidity ≤85%
  • Surface must be dry and free from oil, grease, soluble salts
  • Paint application by Airless spray method
  • Check paint material for shelf life, temperature, batch number
  • Monitor wet film thickness during application
  • Painting System: Primer coat, Second coat, Third coat per project requirements
  • Touchup at site after erection
Painting process for steel structural components
Loading and Shipping
  • Receive finished components from painting department
  • Store components properly job-wise in yard
  • Arrange trucks from contract signed companies
  • Start loading after clearance confirmation
  • Maintain copies of all documents in job file
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. Related standards we follow for design and fabrication:

  • GB/T1591-2008/2018
  • GB/T11263-2010
  • GB/T 2518-2008
  • GB/T12754-2006
  • GB/T 1228-2006
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 definition and measurement
Fillet Weld Leg Size Requirements
  • All fillet weld size should not be less than drawing and design values
  • Minimum fillet weld size: K≥1.5×t (t = thickness of thicker welding member)
  • Maximum fillet weld size: K≤1.2t (t = thickness of thinner welding members)
  • When fillet weld on edge of welding members: t≤6mm, K≤t; t>6mm, K≤t-(1~2)mm
  • For fillet weld in circular or trench holes: K≤(1/3)d
  • Fillet weld without groove should not exceed 17mm
Selection of Fillet Weld Size
Form of Fillet Weld Leg K 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)
Minimum Fillet Weld Size Chart
Parent Metal Thickness (t) (mm) Minimum Fillet Weld Size
t≤6 3 (minimum 5 for crane beam)
6 5
12 6
t>20 8
Fillet weld size specifications and applications
KXD's 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 | Plate thickness: 5-100mm | For regular and irregular small components
Straight flame cutting machine
Model: DZCG-4000A | Plate thickness: 5-100mm | Effective cutting width: 3200mm
CNC cutting machine
Model: CNC-4000C | Plate thickness: 5-100mm | Effective cutting width: 3200mm
Radial drilling machine
Model: Z3050*16/1 | Max drilling diameter: φ50mm | For bolt-connection holes
Puncher machine
Model: JH21-400 | Max stamping pressure: 400 ton | For plate punching and bending
Shearing machine
Model: Q11Y-25*2500 | Cutting width: 2500mm | Thickness: 3-25mm
H section steel assembly machine
Model: Z20B | Flange width: 150-800mm | Web height: 160-2000mm
Gantry-type submerged arc automatic welding machine
Model: LHA5ZB | Max cross section: 800mm×2000mm | For H section assembly welding
H section steel strengthening machine
Model: YTJ60B | Flange width: 200-1000mm | Flange thickness: ≤60mm
H section flange strengthening machine
Model: HYJ-800 | Flange width: 160-800mm | Flange thickness: ≤40mm
10-ramming heads shot blasting machine
Model: QH1525 | Entry size: 1500×2500 | Grade: Sa2.5
Airless sprayer
Model: CPQ9CA | Derived capacity: 56 L/min | For surface paint of structural members