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PEB & Heavy Fabrication

PEB & Heavy Fabrication

we can provide the steel of structure components that are assembled and built to form a complete steel frame – fabricated in one of the most advanced and precise production facilities in India. We commit ourselves to the strict implementation of systems designed to meet the highest quality standards, being structural steel as one of our main strengths where we integrate quality, design, safety and detailing.

PEB

Pre Engineered Buildings (PEB) are the buildings which are engineered at a factory and assembled at site. Usually PEBs are steel structures. Built-up sections are fabricated at the factory to exact size, transported to site and assembled at site with bolted connections. The adoptability of PEB in the place of Conventional Steel Building design concept resulted in many advantages, including economy & easier fabrication. These type of building structure can be finished internally to serve any functions that is actually help in low rise building design. Examples of Pre-Engineered Buildings are warehouses, Canopies, Factories, Bridges etc. The components are engineered beforehand and standardized. Use of these standard components reduces the engineering, production and erection time. Use of customized software for design & drafting increases the speed of the projects. The production line is highly sophisticated having Auto welders, multi-cutting torches, shear cutting machines etc., which greatly reduce the time of fabrication of built-up components. Roll forming machines for producing Z & C members and sheeting, having standard dimension, increases the production capacity of secondary members, use of standard accessories greatly increases the speed of production & erection. Buildings are typically delivered in just a few weeks after approval of drawings. Foundation and Anchor Bolts are cast in parallel with manufacture of the building. Site assembly is fast, as all building components are delivered finished, ready for site bolting. Our study shows that in India the use of PEB will reduce total construction time on a project by at least 50% .This will allow faster occupancy and earlier realization of revenue.

CONCEPT OF METAL BUILDING SYSTEM

A typical assembly of a simple metal building system is shown below to illustrate the synergy between the various building components as described below


Secondary Structure:

It consists of purlins, grits which are the side claddings and eave struts stiffened by sag rods. This system also includes the flange stiffeners which joins the untied flanges of the PEB primary system to the secondary system


EXTERIOR ROOFING & CLADDING

Provides weather tight envelops and transfers structural loads like wind and live loads to the supporting secondary framing also Provides lateral bracing to the roof purlins and wall girts


Wind bracing:

Rod bracing and the portal system are the two types of wind bracing systems. Each one is chosen accordingly depending on design and functional requirement.

Typical Bracing System for PEB

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Accessories:

This part includes the Turbo ventilator, ridge vents, Flashings, gutters, down pipes, ladders etc


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Polycarbonate Multy Wall
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Ridge Vent
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Fasteners
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Roof Ventillators
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Metal Deck Sheet
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Louvers

SITE ERECTION

Our Company provides Erection drawing procedures manual, which includes all the information required for the site assembly of the building. The erector must use to proper tools and equipment and sequence of erection as specified in company manual. The high strength bolts at the primary connections are pre-tightened to specified tension or torque as shown in the erection drawings. The method of tightening may be either using a calibrated tension or torque wrench or turn-of-the-nut method as specified in AISC Manual. Erection should always start with a braced bay and the red steel must be fully plumbed before starting cladding erection.

MATERIAL AND FABRICATION

All materials are purchased new direct from the steel mills with certified Mill certificates complying with ASTM or equivalent specifications. All the material specifications are documented in the Company’s Specification Manual, which is an integral part of the total quality control system at factory. High strength steel having minimum yield strength of 345 Mpa is used for Primary, secondary and cladding. The materials are subject to stringent quality control checks upon receipt at plant and only upon approval are taken into stock. The material inspection system is well documented in company Quality Control Manual and compliers with material tractability. The standard surface treatment for fabricated steel is mechanical wire brushing to SSPC ST3 and application of one coat of red oxide prior to a nominal dry film thickness of 25-30 microns. However company offers various types of surface preparation and epoxy paint systems to suit the corrosive conditions at site and contract requirement. Company has blast cleaning facility to achieve a white metal finish to Swedish standard SA2 ½ or SA 3  and airless spray facility to apply any specified paint system. Upon request company will recommend the optimum paint system to suit ambient conditions at site.

Advantages of PEB:

There are many advantages of Pre Engineered Buildings, which are as follows,

  • Quality control is the main advantage as all the structural member are engineered beforehand, standards of different codes also taken into consideration & these components are made in factory under the supervision of Quality Control Engineer.
  • Lower cost due to the saving in design, manufacturing and on site erection cost.
  • Minimizing time of construction due to the use of software for design of the structural components.
  • Low Maintenance due to use of standard quality of paints over steel members , which increases the ability to withstand & finally the maintenance cost will be low as compare to conventional steel building.
  • Quick Erection, as all the members are Pre Manufactured & skilled labor is used for connections of different components.
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