Pre-Engineered Buildings (PEBs) are the fastest growing trend in India. Pre-Engineered Buildings (PEBs) is a metal building that consists of metal standing seam roof panels on steel purlin spanning between rigid frames with metal frame wall cladding. They drastically reduce construction time. Maintenance is also extremely low. PEBs optimally utilize resources, and leverage technology to the maximum. Pre engineered buildings have gained a global reputation for durability, water and earthquake resistance. PEBs are tremendously versatile – they are easy to set-up, expand, modify, and transport to different locations. They are environmentally friendly and can be aesthetically designed with unique features. An estimated 20-30% can be saved on cost, as compared to conventional building methods. PEBs can be delivered to a site in few weeks and conventional steel structures take as much as 20 to 25 weeks to complete.
CLASIFICATION OF STEEL BUILDINGS
A steel building is a metal structure fabricated with steel for the internal support and for exterior cladding, as opposed to steel framed buildings which generally use other materials for floors, walls, and external envelope. Steel buildings are used for a variety of purposes including storage, workspaces and living accommodation. Today’s structural steel framing is bringing grace, art and function together in almost limitless ways and is offering new solutions and opportunities to create challenging structures, which were once thought impossible. Steel structures have reserve strength. Simple stick design in the steel framing allows construction to proceed rapidly from the start of erection.
Conventional Steel Buildings
Conventional Steel buildings are consultant and conservative. The Structural members are hot rolled and are used in conventional buildings. The materials are produced or manufactured in the plant and are shifted to the site. The raw materials are processed in the site for the desired form and erected. The modifications can be done during erection by cut and weld process. Truss systems are used in conventional system.
Pre-Engineered Steel Buildings
Pre-Engineered Steel Buildings are manufactured or Produced in the plant itself. The manufacturing of structural members is done on customer requirements. The detailed structural members are designed for their respective location and are numbered, which cannot be altered, because members are manufactured with respect to design features. These components are made in modular or completely knocked condition for transportation. These materials are transported to the customer site and are erected. Welding and cutting process are not performed at the customer site. No manufacturing process takes place at the customer site.
The most common and economical type of low rise buildings is a building with ground floor and two intermediate floor plus roof. The roof of low rise buildings may be flat or sloped. Intermediate floors of low rise buildings are made of mezzanine systems. Single storied houses for living take minimum time for construction and can be built in any type of geographical location like extreme cold hilly areas, high rain prone areas, plain land obviously and extreme hot climatic zones as well.
COMPONENTS OF PRE-ENGINEERED BUILDING
- Primary Framing.
- Secondary Framing.
- Sheeting (or) cladding.
ADVANTAGES OF PRE-ENGINEERED BUILDING
Lower Cost: Due to the systems approach, there is a significant saving in design, manufacturing and on site erection cost. The secondary members and cladding nest together reducing transportation cost.
Reduction in Construction Time: Steel Buildings are typically delivered in just a few weeks. Foundation and anchor bolts are cast parallel with finished, ready for the site bolting. In India the use of pre engineered buildings will reduce total construction time of the project by at least 40%.
Flexibility of Expansion: Pre-Engineered Buildings can be easily expanded in length by adding additional bays. Also expansion in width is possible by pre designing for future expansion.
Large Clear Span: In PEB the buildings can be given up to 90m clear spans which are the important advantage of PEB with column free space.
Low Maintenance: Buildings are supplied with high quality paint systems for cladding and steel to suit ambient conditions at the site, which results in long durability and low maintenance costs.
Energy Efficient: PEBs can be supplied with polyurethane insulated panels or fiberglass blankets insulation to achieve required U values.
Single Source Availability: As the complete building package is supplied by a single vendor, compatibility of all the building components and accessories is assured. This is one of the major benefits of the pre-engineered building systems.
Quality Control: PEB’s are manufactured completely in the factory under controlled conditions depending on the site and hence the quality is assured.
APPLICATION OF PEBs
Almost every conceivable building use has been achieved with PEBs; the most common applications are industrial, institutional and commercial buildings.
- Gas stations
- Aircraft hangers
- Metro stations
- Vehicle parking sheds
- Schools, Indoor stadium roofs
- Bridges, Railway platform shelters
- Outdoor stadium canopies
FUTURE OF PEBs
Pre-Engineered steel construction market has been growing in double figure year-on-year for the last few years. Also it would certainly not be an exaggeration if we say the industry is catching-up very rapidly. Sectors such as automotive, power, logistics, Pharma, FMCG, and retail provide huge growth opportunity for PEB in India. There is undoubtedly, a very promising future for this sector in the coming years.