Steel Structure

Stonehenge is a sister concern of PES and it is known as a trustworthy leading structural steel fabricator. Stonehenge is bona fide to offer its expertise in the fabrication and installation of structural steel and plate works for various industrial and commercial applications.

With a magnificent production capacity and a plant facility Stonehenge has been supplying fabricated structural steel and plate works for major power & desalination plants, petrochemical plants, oil & gas sector, cement plants, steel mills, high-rise building projects as well as other industrial and commercial complexes in abroad and export markets.

Stonehenge lines of expertise are:

Following documents are required to be submitted by consulting firms to qualify for doing DEA:

  • ▶ Commercial Buildings (Greater span buildings): Seaports, airports, sport complexes, stadiums, arenas, shopping centers, exhibition halls, hotel, holiday village, convention and culture centers and municipality service buildings.
  • ▶ Light and Heavy Industrial Buildings: Cement, brick, cotton yarn, textile factories, energy production plants, warehouse, conveyors, steel bridges, high towers, fuel tanks and raw material warehouses.
  • ▶ Food Industrial Structures: Integrated production and manipulation plants, beverage factories, brewery factories etc.
  • ▶ Water and Waste Treatment Plants
  • ▶ Hangars: Special aircraft and helicopter hangars
  • ▶ Agricultural Buildings: Horizontal and vertical grain storage silos
  • ▶ Light Weight Steel Structures (Light gauge cold formed): Residence, office and prefabricated buildings
  • ▶ Multi Story Buildings: Office and residences
  • ▶ Tensile membrane structures
  • ▶ Staff and Production Capacity
  • ▶ Pipe Racks
  • ▶ Equipment Support Structures
  • ▶ Built-up Girders and Columns
  • ▶ Structural Steel Buildings
  • ▶ Commercial building
  • ▶ High-rise Buildings

Stonehenge Why

The Stonehenge system offers multiple returns to the end-user; the most notable are low initial investment, fast construction time, low maintenance cost, large clear spans, infinite choice of layout, inherent resistance to earthquakes, ease to expansion and unique attractive appearance.

Directors and employees are required to maintain the highest ethical standards, ensuring that business practices are conducted in a manner that, in all reasonable circumstances, is beyond reproach. In this respect the Group and its subsidiaries have adopted a Corporate Code of Conduct which has been approved by the Board of Directors.

Our Quality Control Department is capable of ensuring quality requirements to the following specifications:

  • ▶ Material Acceptance Supervision, Material Properties, Visual and Quantity Control, Verifi- cation of Material Certificates (EN 10058, EN 499, EN 10029, EN 12536)
  • ▶ Inspection of Surface after Sand Blasting (SIS 05 59 00 Sa 2,5; ISO 8501-1)
  • ▶ Inspection of Welding Procedure (WPS/PQR) (EN15612, EN15608, EN 15609)
  • ▶ Inspection of Welder Certificates (WPQ) (EN 15614, EN 287-1, EN 1418 norms)
  • ▶ and qualif. of welding proc. for metallic materials (EN ISO 15607)
  • ▶ and qualif. of paint. proc. (TS EN ISO 12944 & TS 914 EN ISO 1461)

Our Quality Control Department is capable of ensuring quality requirements to the following specifications:

  • ▶ Material Acceptance Supervision, Material Properties, Visual and Quantity Control, Verifi- cation of Material Certificates (EN 10058, EN 499, EN 10029, EN 12536)
  • ▶ Manual and automatic sand blasting
  • ▶ Computer controlled drilling and cutting (CNC)
  • ▶ Modern welding equipments
  • ▶ Cold forming equipment and press brakes
  • ▶ Painting and paint drying equipments
  • ▶ ISO 9001 quality management in production

APPLICABLE CODES:

BUILDING CODES:

LOADS APPLICATION
2012 EDITION OF THE INTERNATIONAL BUILDING CODE
International code council, Inc (IBC)
Bangladesh National Building Code (BNBC – 2006)

MANUFACTURING AND ERECTION TOLERANCES ARE APPLIED AS PER:

2010 edition of the Low Rise Building Systems Manual
Metal Building Manufacturers Association, Inc (MBMA)

For Erection & Manufacturer Tolerances

Minimum Design Loads for Buildings of other Structure (7-10)
American Society of Civil Engineers (ASCE)

DESIGN CODES:

HOT ROLLED SECTIONS & BUILT UP SECTIONS DESIGNED IN ACCORDANCE WITH:

Manual of Steel Construction – 14th Edition (AISC – 2011)
Manual of Steel Construction – Allowable Stress Design (AISC – 1989)
International code council, Inc (IBC)
American Institute of Steel Construction, Inc.

COLD FORMED MEMBERS ARE DESIGNED IN ACCORDANCE WITH:

2007 Edition of Cold Formed Steel design Manual
American Iron and Steel Institute (AISI)

WELDING IS APPLIED IN ACCORDANCE WITH:

2010 American Welding Society (AWS D.1.1.04)
Structural Welding Code – Steel Manual

Material Specifications:

Below material standards and specification are followed for the design of building component/s

# No Components Specifications Minimum yield strength
1 Built –up (Plates) ASTM A-572 Grade 50 (or equivalent) Fy = 34.5 kN/cm2
2 Angles ASTM A-36 (or equivalent) Fy = 23.5 kN/cm2
3 Beams ASTM A-572 (or equivalent) Fy = 34.5 kN/cm2
4 Cold Form Grade 50 Fy = 34.5 kN/cm2
5 Cladding ( Panel ) Zinc Aluminum Base Fy = 34.5 kN/cm2
6 X-Bracing- Rods ASTM A36 (or equivalent) Fy = 34.5 kN/cm2
7 Anchor bolts ASTM A36 (or equivalent) Fu = 40.0 kN/cm2
8 High strength Bolts ASTM A325 – black finish (or equivalent) Ft= 30.3 kN/cm2
9 High strength Bolts ASTM A325 – black finish (or equivalent) Fu=72 -83 kN/cm2
10 Machine Bolts ASTM – A 307 (or equivalent) Ft = 13.8 kN/cm2
11 Machine Bolts ASTM – A 307 (or equivalent) Fu = 41.0 kN/cm2
12 Mezzanine Decking ASTM A 653 (or equivalent) Fy = 34.5 kN/cm2

If you have any questions please do not hesitate to

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