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Steel Structure Building
Created with Pixso. Hot Dip Galvanized Pre-engineered Steel Building with Modular Construction and 50 Years Life Cycle

Hot Dip Galvanized Pre-engineered Steel Building with Modular Construction and 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
Column And Purlin:
C Section And Z Section Steel
Profile:
Hot Rolled H Steel / Weld H Steel
Tolerance:
±5%
Steel Type:
Q235,Q355
Surface Treatment:
Hot Dip Galvanized Or Painted
Design Options:
Versatile
Hs Code:
730890000
Web Width:
7-28mm
Installation Method:
Modular Construction
Packaging Details:
pallet
Supply Ability:
50000ton/year
Highlight:

Hot Dip Galvanized Pre-engineered Steel Building

,

Modular Construction Steel Structure Warehouse

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50 Years Life Cycle Prefabricated Steel Construction

Product Description
Prefab Steel Frame Structure Warehouse Building Construction and Contractor
Product Specifications
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
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 the customer's requirements. All the 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 the advantages of low cost, high durability, perfect quality control and fast erection; PEBs are used for various applications such as factories, warehouses, logistics center, showrooms, shopping malls, schools, hospitals, community buildings, etc.

Industrial Applications:
  • Factories
  • Workshop
  • Warehouses
  • Cold Storages
  • Steel Mills
  • Assembly Plant
Industrial pre-engineered steel building application examples
Commercial Applications:
  • Showrooms
  • Supermarkets
  • Offices
  • Shopping Centers
  • Exhibition Halls
  • Restaurants
  • Logistic Centers
  • Multi-pupose Buildings
Commercial pre-engineered steel building application examples
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 the tradtional 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 consists 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
A: Material Receiving Procedure
  • Verify the receiving documents and quantity of the received material by stores
  • Submit the load for QC inspection by stores
  • Visual inspection to confirm surface condition and for any damages
  • Dimensional inspection checking length, width, depth, thickness etc.
  • Verification of supporting documents like MTC
  • Preparation of 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 carries out processing
  • Punching of part mark on the 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
  • Transfer to fit-up section after completion
C: Fit-up
  • Fabrication drawings issued by production engineer
  • Prepared beams and connection detail items collected for fit-up
  • End plates, gusset plates, stiffeners, purlin cleats fixed by tack welding
  • QC inspection after fit-up completion
Steel structure fit-up process showing component assembly
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 completely 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 completely after welding
  • Grind off burrs, sharp edges and excessive reinforcements
  • QC inspection after completion
Welding process in steel structure manufacturing
E: Blasting
  • Tool Box Talk performed by Foreman for every task
  • Working area barricaded with information notices
  • ID of fabricated steel recorded for traceability
  • Raw material steel sections craned onto "in-feed" rack
  • Material cleaned with high pressure air to remove dust
  • Automated blasting process using six internally mounted wheels
  • Steel 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 before application
  • Surface must be at least 3˚C above dew point temperature
  • Relative humidity must be 85% or below
  • Paint applied by Airless spray method
  • WFT (Wet Film Thickness) readings taken during application
  • Only experienced spray applicators used with appropriate PPE

Specification of Painting System:

  • Primer coat: Per the project requirement
  • Second coat: Per the project requirement
  • Third coat: Per the project requirement
  • Touchup at site - after erection
Painting process for steel structure components
G: Loading and Shipping
  • Receives finished components from production department
  • Store components properly job wise in the yard
  • Arrange trucks from contract signed truck companies
  • Loading starts after getting clearance
  • Copies of all documents kept in Job file
Quality Standards & Control

With 20 year warranty in the steel building industry, our company has standard on the quality of steel building. We have acquired the ISO9001 and CE certificate. The followings are the related standard that we strictly follow whether for the design and fabrication of steel buildings:

  • GB/T1591-2008/2018
  • GB/T11263-2010
  • GB/T 2518-2008
  • GB/T12754-2006
  • GB/T 1228-2006
Fillet Weld Size Quality Control
1. Purpose

To ensure the quality of fillet weld, meeting up the technical requirements of welded members and improve the standardization of our fabrication.

2. Application Scope

This manual is applying for the design, fabricate and inspection for the fillet weld size.

3. Fillet Weld Leg Size Requirements

Definition: Length of catheti from maximum isosceles triangle that drawn from the section of fillet welding seam.

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)

Edge welding: When t≤6mm, K≤t; when t>6mm, K≤t-(1~2)mm

Circular holes: K≤(1/3)d (d--diameter of circular hole)

Maximum without groove: Should not be more than 17mm

Fillet weld leg size definition and measurement diagrams Fillet weld size specifications and requirements
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 of the steel structure buildings
Fillet weld without groove K=(0.5~0.6)t for the strengthening ribs and other secondary members
Fillet weld with groove (CJP and PJP) K=t/4 and K≤10mm for most of the steel structure buildings
Fillet weld with groove (CJP and PJP) K=t/2 and K≤10mm important members (crane beams or connection between web plates and flange plates)
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
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

I. Steel Plate Cutting

Equipment: Portable CNC Fire-cutting machine (Model: CNCDG-1530)

Application: Steel plate cutting (5-100mm thickness), beveling of the edge

II. H Section Steel Assembly

Equipment: H section steel assembly machine (Model: Z20B)

Application: H type assembly, flange width 150-800mm, web height 160-2000 mm

III. Automatic Welding

Equipment: Gantry-type submerged arc automatic welding machine (Model: LHA5ZB)

Application: Assembly welding of H section steel up to 800mm×2000mm cross section

IV. H Section Steel Strengthening

Equipment: H section steel strengthening machine (Model: YTJ60B)

Application: Correcting deformation of I beam or H section steel flange plate

VII. Shot Blasting

Equipment: 10-ramming heads shot blasting machine (Model: QH1525)

Application: Shot blasting of section steels, up to Sa2.5 Grade

VIII. Painting

Equipment: Airless sprayer (Model: CPQ9CA)

Application: Surface paint of structural members, Pressure ration: 32:1