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Steel Structure Building
Created with Pixso. Pre-Engineered Steel Building with 50 Years Life Cycle, 60 Days Construction Period, and 30 Year Warranty

Pre-Engineered Steel Building with 50 Years Life Cycle, 60 Days Construction Period, and 30 Year Warranty

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
Packaging Details:
pallet
Supply Ability:
5000ton/Month
Highlight:

50 Years Life Cycle Pre-Engineered Steel Building

,

60 Days Construction Period Light Steel Structure

,

30 Year Warranty PEB

Product Description
Pre-Engineered Factory Light Steel Structure
Product Specifications
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
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 including factories, warehouses, logistics centers, showrooms, shopping malls, schools, hospitals, and community buildings.

Industrial Applications
  • Factories
  • Workshops
  • Warehouses
  • Cold Storages
  • Steel Mills
  • Assembly Plants
Industrial pre-engineered building application showing factory structure
Commercial Applications
  • Showrooms
  • Supermarkets
  • Offices
  • Shopping Centers
  • Exhibition Halls
  • Restaurants
  • Logistic Centers
  • Multi-purpose Buildings
Commercial pre-engineered building application showing retail structure
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 structural members of pre-engineered 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 & Quality Control
A: 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
B: Preparation of Material

Preparation of Plates:

  • Drawings transferred to storage device using expert software
  • Drawings copied 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 etc.:

  • Fabrication drawings prepared by design department
  • Automated cutting and drilling machine processing
  • Job transferred to fit-up section after completion
C: Fit-up
  • Fabrication drawings issued for execution priority
  • Prepared beams and connection items collected for fit-up
  • End plates, gusset plates, stiffeners, purlin cleats fixed by tack welding
  • QC inspection after fit-up completion
Fit-up process of steel structure components
D: 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:

  • Similar procedure as submerged arc welding with MIG parameters
Welding process in steel structure fabrication
E: Blasting
  • Tool Box Talk performed for every task
  • Working area barricaded with information notices
  • ID of fabricated steel recorded for traceability
  • Raw material cleaned with high pressure air
  • Material fed into automated blasting chamber
  • Six internally mounted wheels throw steel shot at high velocity
  • Emerges fully cleaned (Grade - SA 2/2.5)
  • Full PPE required for personnel
Blasting process for steel surface preparation
F: Painting of Fabricated Material
  • QC inspection of blasted surfaces before priming
  • Ambient conditions checked and recorded (temperature, humidity)
  • Surface must be 3˚C above dew point, humidity ≤85%
  • Paint applied by Airless spray method
  • Paint material checked for conformity
  • Wet Film Thickness readings taken during application
  • Painting System: Primer coat, Second coat, Third coat per project requirements
Painting process for steel structure protection
G: Loading and Shipping
  • Receive finished components from painting department
  • Store components properly job-wise in yard
  • Arrange trucks from contract signed companies
  • Loading starts after clearance confirmation
  • Document copies kept 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 quality of fillet weld, meeting technical requirements of welded members and improve standardization of fabrication.

Application Scope: Applies for design, fabrication and inspection of fillet weld size.

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)
  • For fillet weld on edge of welding members: when t≤6mm, K≤t; when 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
Fillet weld leg size definitions and illustrations Fillet weld applications in structural connections
Selection of Fillet Weld Size
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 or similar)
Minimum Fillet Weld Size Chart
Parent Metal Thickness (t) (mm) Minimum Fillet Weld Size
t≤6 3 (minimum value being 5 for crane beam)
6 5
12 6
t>20 8
H Section Manufacturing Equipment and Process

Steel plate cutting → H section assembly → Automatic welding → H section strengthening → Assembly → Manual welding → Shot blasting → Painting → Storage

Manufacturing Equipment
Equipment Name Model No. Application Feature
Portable CNC Fire-cutting machine CNCDG-1530 Steel plate cutting (5-100mm), beveling of edge. For regular and irregular small components
Straight flame cutting machine DZCG-4000A Steel plate cutting (5-100mm), Y flange plate, web plate cutting, effective cutting width: 3200mm
CNC cutting machine CNC-4000C Steel plate cutting (5-100mm), irregular component cutting, effective cutting width: 3200mm
Radial drilling machine Z3050*16/1 Maximum drilling diameter φ50mm, for component bolt-connection holes
Puncher machine JH21-400 Maximum stamping pressure-400 ton, for plate punching, blanking, bending
Shearing machine Q11Y-25*2500 Cutting width 2500mm and cutting thickness 3-25mm
H section steel assembly machine Z20B H type assembly, flange width 150-800mm, web height 160-2000 mm
Gantry-type submerged arc automatic welding machine LHA5ZB Assembly welding of H section steel, maximum cross section up to 800mm*2000mm
H section steel strengthening machine YTJ60B Correcting deformation of I beam or H section, flange width 200-1000mm
H section flange strengthening machine HYJ-800 Correcting deformation of I beam or H section, flange width 160-800mm
10-ramming heads shot blasting machine QH1525 Shot blasting of section steels, up to Sa2.5 Grade
Airless sprayer CPQ9CA Surface paint of structural members, Pressure ration: 32:1