Pre Engneered Budng SystemPresented by : Shri H.K.Gulati ADEN/Line/PNBE Shri A.Srinivas Rao AXEN/W/CN/BNC Shri M.R.Mirza AXEN/W/JPUnder the guidance of :Shri Ajay GoyalSr. Professor /Br.Concept of Meta Budng System A typical assembly of a simple metal building is shown to illustrate the synergy between the various building components as described below. Exterior Cladding. Secondary Framing. Main Frame. Wind Bracing.Exteror CaddngContd Contd Contd Contd. .. .Exterior Cladding provide a weather tight envelope.Transfer Structural Loads I.e. wind & live loads to the supporting secondary framing.Provides lateral bracing to the roofs purlins & wall girts.Secondary FramngContd Contd Contd Contd. .. . Purlins & girts receive loads from the roof & wall covering & transfer to the main building frame. Purlins & girts provide lateral bracing to the building columns & rafter preventing lateral bulking of the compression flanges.Man FrameContd Contd Contd Contd. .. .Moment resisting frames provides lateral stability & transfer the roof & wall loads to the foundation through anchor bolts.Wnd BracngContd Contd Contd Contd. .. .Roof & wall cross bracing provides longitudinal stability to the building.Transfer of the wind loads acting on the building end walls to the foundation.PEB NDUSTRY EVOLUTON | HSTORYEarly 1900s1940sCONCEPT OF METAL BUILDINGS ORIGINATED IN U.S.SIMPLE INDUSTRIAL STRUCTURES USINGS TRUSS RAFTERS, STRAIGHT COLUMNS, SECTIONAL ROOFS &WALL. WEDGE PINS FOR CONNECTIONS.MASS PRODUCTION OF NISSEN AND QUONSET HOUSING AND STORAGE MODULES FOR US ARMY DURING WORLD WAR IIMETAL BUILDING SYSTEM RECOGNIZED AS A FAVOURABLE METHOD OF CONSTRUCTION OVER CONVENTIONAL METHODSPEB INDUSTRY EVOLUTION / HISTORYContd Contd Contd Contd. .. .COMPUTERISED DESIGN ALLOWED BLDGS TO BE TAILORED TO INDIVIDUAL CUST. REQUIREMENTSROLL FORMING LINES ALLOWED CONTINUOUS SPAN COLD ROLLED Z-PURLINSCOLOR COATED PANELS AND FACTORY INSULATED PANELS IMPROVED ARCHITECTURAL APPEARANCEMAJOR INCREASE IN DESIGN POSSIBILITIES CONTRIBUTED TO THE BOOM IN METAL BUILDINGSTHE TERM PRE-ENGINEERED BUILDINGS CAME INTO EXISTENCELate 1950s & Early 1960sPEB NDUSTRY EVOLUTON | HSTORYContd Contd Contd Contd. .. .TODAY PRE ENGG. METAL BLDGS. DOMINATE THE LOW RISE BLDG. MARKET.PRECISION ROLL FORMING LINES FOR THE CLADDING AND SEC. MEMBERS.AUTO. PROD. LINES FOR STRUCT. SECTIONS.HIGH QUALITY PAINT SYSTEMS FOR STEEL AND CLADDING.MBMA STATISTICS SHOW, ABOUT 60 % OF LOW RISE INDUSTRIAL AND COMM. BLDGS. IN THE U.S.A. USE THE P.E.B.SYSTEM.1990mportant Feature of PEB SystemPre Engineered Building System is computer assisted, and design to create a building for a specific use.The complete building system is Pre Engineered to facilitate easy production & assembly on site.Contd..In PEB System a superior corrosion protection of a thin coating of resin applied on the top of the Aluminium Zinc coating make Galvalume sheet.Galvalume steel is a steel sheet product with a highly corrosion resistance steel, aluminium zinc alloy hard dip coating.A clear organic acrylic resin coating is then applied & then thermally cured.A colour coating is given on the top surface for a bright appearance with a colour of the customers choice.ADVANTAGES OF PRE-ENGNEERED STEEL BULDNGS FASTER OCCUPANCY SINGLE SOURCE RESPONSIBILITY LOWER COST FLEXIBILITY IN EXPANSION LARGE CLEAR SPANS QUALITY CONTROL LOW MAINTENANCE ENERGY EFFICIENT ROOF AND WALL SYSTEMS ARCHITECTURAL VERSATALITYAdvantage of PEB System over conventona systemPEB System is zero maintenance & superior in strength.It is corrosion resistance & feature an attractive appearance.Steel arriving at job site is dry with no residual oil on the surface.18PEB System has protection against non uniform weathering.Excellent resistant in transit to corrosion & storage strain.This system reduces energy loads on buildings due to long term bright surface that helps to retain heat reflectivity.It is a higher level technology & innovation & better product over conventional material.APPLCATONS OF PRE-ENGNEERED BULDNGS WARE HOUSES FACTORIES WORKSHOPS OFFICES GAS STATIONS VEHICLE PARKING SHEDS SHOW ROOMS AIRCRAFT HANGERS SCHOOLS SPORTS AND RECREATIONAL FACILITIES HOSPITALS LABOUR CAMPS LOW COST HOUSING ETC...Case study of PEB SystemCase study of PEB System Latest construction of PEB Systemof a Latest construction of PEB Systemof a workshop shed in SW Railway is at workshop shed in SW Railway is at KrishnarajpuramKrishnarajpuram near Bangalore.near Bangalore. The size of shed is 60 m x 30m x 16 m The size of shed is 60 m x 30m x 16 m height.height. The components were fabricated by Kirby The components were fabricated by Kirby Structures Hyderabad using computer Structures Hyderabad using computer aided design within a very short period.aided design within a very short period.Contd Contd Contd Contd. .. .The Galvalume sheet manufactured in the workshop are colour coated & fabricated by cutting to required length & pressing to desired profile as per prepared drawings.The fabricated sheets & structural members were transported to the site of work within a period of one week after fabrication.Contd Contd Contd Contd. .. . The structure was erected over the foundation provided at site after applying primer coat of paint & also one finishing coat of paint. The purlin were made out of CR-Sheets of thickness as per drawing pressed into Z-Section.

The profiled sheets were positioned in roofing & cladding & fitted on to the structure using self tapping stainless steel screw with neoprene washer & then covered with PVC caps of the same colour as that of the colour coated sheets. The roof monitor was also provided along with stainless steel bird mesh fitted in steel frame. The roofing system has 5 % of polycarbonate sheets for the natural day light pass into the workshop specially ordered & manufactured to the same profile as that of galvalume sheet.ContdContd

The roofing system in PEB is latest product & The roofing system in PEB is latest product & since it is made of steel, it is easier to maintain since it is made of steel, it is easier to maintain comparedto the conventional Sheets.comparedto the conventional Sheets.

It is lighter than conventional Sheets.It is lighter than conventional Sheets.

The The colourcolourcoated steel coated steel GalvalumeGalvalumesheets can sheets can also be padded with rock wool or a similar product also be padded with rock wool or a similar product which can keep a difference of inside & outside which can keep a difference of inside & outside temperature by about 8 Degree centigrade which temperature by about 8 Degree centigrade which is not possible in conventional Sheets.This is not possible in conventional Sheets.This renders better comfort to the people working within renders better comfort to the people working within thereby increasing the productivity also.thereby increasing the productivity also.Superorty of PEB shed over conventona shed constructon t was estimated that quantity of mild steelt was estimated that quantity of mild steelt was estimated that quantity of mild steelt was estimated that quantity of mild steel required to fabricate the Diesel Loco 8hed ofrequired to fabricate the Diesel Loco 8hed ofrequired to fabricate the Diesel Loco 8hed ofrequired to fabricate the Diesel Loco 8hed of 60 m x 30 m x 16 m height using the60 m x 30 m x 16 m height using the60 m x 30 m x 16 m height using the60 m x 30 m x 16 m height using the conventional method & adopting the sameconventional method & adopting the sameconventional method & adopting the sameconventional method & adopting the same pattern as that of the existing shed was pattern as that of the existing shed was pattern as that of the existing shed was pattern as that of the existing shed wasaround 430 Metric tons of mild steel only. around 430 Metric tons of mild steel only. around 430 Metric tons of mild steel only. around 430 Metric tons of mild steel only. Using PEB 8ystem for the same shed wasUsing PEB 8ystem for the same shed wasUsing PEB 8ystem for the same shed wasUsing PEB 8ystem for the same shed was around 120 Metric tons only but with higharound 120 Metric tons only but with higharound 120 Metric tons only but with higharound 120 Metric tons only but with high tensile steel to 8:8500 with a minor quantitytensile steel to 8:8500 with a minor quantitytensile steel to 8:8500 with a minor quantitytensile steel to 8:8500 with a minor quantity of mild steel for bracings. stay rods etc. of mild steel for bracings. stay rods etc. of mild steel for bracings. stay rods etc. of mild steel for bracings. stay rods etc.Thanks