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A presentation on    Structural Steel By: Vinod Singh
Steel ,[object Object],[object Object],[object Object]
Used as: ,[object Object],[object Object]
Steel vs. Cast Iron ,[object Object],[object Object],[object Object],[object Object],[object Object]
Comparison between Cast Iron, Wrought Iron & Steel Comp strength 4.75 -25.2 tonnes/ sq cm  Ultimate tensile strength is 5.51 to 11.02 t /sq m compressive strength is 2.0 tonnes/sq cm and ultimate tensile strength 3.15 tonnes/sq cm Comp. strength 6.3-7.1 tonnes/sq cm Ultimate tensile strength 1.26 to 1.57tonnes/sq cm. Strength Can be hardened & tempered Cannot be hardened or tempered Hard, hardened by heating & sudden cooling Hardness 1300-1400 degree Celsius 1500 degree Celsius 1200 degree Celsius Melting point Midway  Purest  Contains up to 0.25% carbon Crude form containing 2-4% carbon composition Steel Wrought iron Cast Iron
Comparison between Cast Iron, Wrought Iron & Steel Absorbs shocks Cannot stand heavy shocks Does not absorb shocks Reaction to sudden shock Rapidly forged or welded Easily forged or welded Brittle and cannot be welded or rolled into sheets Forging & Welding Tough, malleable & Ductile Tough, malleable, ductile & moderately elastic Brittle & cannot be welded or rolled into sheets Malleability&Ductility Rusts easily Rusts more than Cast Iron Does not rust easily Rusting Steel Wrought iron Cast Iron
Comparison between Cast Iron, Wrought Iron & Steel Used as  reinforcement  in R.B. & R.C.C. Used in making  St. members, bolts, rivets and sheets  (plain and corrugated) Making  cutlery, files & machine tools Costlier than mild steel so being replaced by the latter Withstand shocks without permanent injury so used in  chains, crane hooks and railway couplings For parts that rust easily like  water pipes, sewers, drain pipes etc. Making  such parts of machines as are not likely to be subjects to shocks or tension Lamp posts, columns and railings Uses Steel Wrought iron Cast Iron
Types of Steel:  (According to varying Carbon Content) ,[object Object],[object Object],[object Object],[object Object],[object Object]
Mild Steel  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mild Steel : Uses  ,[object Object],[object Object],[object Object],[object Object],[object Object]
Medium Carbon Steel  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Medium Carbon Steel : Uses ,[object Object],[object Object]
High Carbon Steel  ,[object Object],[object Object],[object Object],[object Object],[object Object]
High Carbon Steel : Uses ,[object Object]
Types of Steel: (according to elements used) ,[object Object],[object Object]
Alloy Steels ,[object Object],[object Object],[object Object],[object Object],[object Object]
Stress strain curve
Structural steel sections Hot rolled sections
Tolerances in structural steel  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
bolting Most common method in joining structural is bolting:
welding ,[object Object],[object Object],[object Object],[object Object]
Properties of a structural steel frame ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Properties of a structural steel frame ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Properties of a structural steel frame ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Applications 11.  Circular vent 12.  Vehicle door 13.  Pedestrian door 14.  Window 15.  Roof light 16.  Canopy 17.  Parapet 18.  Crane beams and rails 19.  Bridge crane 20.  Mezzanine or Structural Floor 1.  Portal Frame - Rafter 2.  Portal Frame - Column 3.  Wind bracing 4.  Purlins 5.  Wall Rails 6.  Roof panels 7.  Wall panels 8.  Astrotherm  insulation 9.  Eave gutter 10.  Monovent
Applications: Wind Bracing ,[object Object],[object Object],[object Object]
Applications: Roof Lights ,[object Object],[object Object],[object Object],[object Object]
Applications: Astrotherm insulation  ,[object Object],[object Object]
Eave gutter  ,[object Object],[object Object]
Monovent  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Roof Panels
Wall Panels                                                                                                                                                                                                          
Mezzanine
Purlins
Bridge crane
Circular Vents
Pedestrian door                                                                                                                                                                                                                                                                                                      
Structural steel in buildings Airport terminal complex
A steel joist and king post truss system provide support for the 650,000sq. ft. roof.
This framing system creates wide-open, column-free spaces king post trusses form the lateral-force resisting system, eliminating the need for bracing and further increasing flexibility of the interior space.
Steel buildings- stadium
The upper tier, cantilevering 46' over the suite and club Levels supported by column groupings consisting of four massive steel HSS placed at the midpoint alternating structural bays.
 

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Structural steel

  • 1. A presentation on Structural Steel By: Vinod Singh
  • 2.
  • 3.
  • 4.
  • 5. Comparison between Cast Iron, Wrought Iron & Steel Comp strength 4.75 -25.2 tonnes/ sq cm Ultimate tensile strength is 5.51 to 11.02 t /sq m compressive strength is 2.0 tonnes/sq cm and ultimate tensile strength 3.15 tonnes/sq cm Comp. strength 6.3-7.1 tonnes/sq cm Ultimate tensile strength 1.26 to 1.57tonnes/sq cm. Strength Can be hardened & tempered Cannot be hardened or tempered Hard, hardened by heating & sudden cooling Hardness 1300-1400 degree Celsius 1500 degree Celsius 1200 degree Celsius Melting point Midway Purest Contains up to 0.25% carbon Crude form containing 2-4% carbon composition Steel Wrought iron Cast Iron
  • 6. Comparison between Cast Iron, Wrought Iron & Steel Absorbs shocks Cannot stand heavy shocks Does not absorb shocks Reaction to sudden shock Rapidly forged or welded Easily forged or welded Brittle and cannot be welded or rolled into sheets Forging & Welding Tough, malleable & Ductile Tough, malleable, ductile & moderately elastic Brittle & cannot be welded or rolled into sheets Malleability&Ductility Rusts easily Rusts more than Cast Iron Does not rust easily Rusting Steel Wrought iron Cast Iron
  • 7. Comparison between Cast Iron, Wrought Iron & Steel Used as reinforcement in R.B. & R.C.C. Used in making St. members, bolts, rivets and sheets (plain and corrugated) Making cutlery, files & machine tools Costlier than mild steel so being replaced by the latter Withstand shocks without permanent injury so used in chains, crane hooks and railway couplings For parts that rust easily like water pipes, sewers, drain pipes etc. Making such parts of machines as are not likely to be subjects to shocks or tension Lamp posts, columns and railings Uses Steel Wrought iron Cast Iron
  • 8.
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15.
  • 16.
  • 18. Structural steel sections Hot rolled sections
  • 19.
  • 20. bolting Most common method in joining structural is bolting:
  • 21.
  • 22.
  • 23.
  • 24.
  • 25. Applications 11. Circular vent 12. Vehicle door 13. Pedestrian door 14. Window 15. Roof light 16. Canopy 17. Parapet 18. Crane beams and rails 19. Bridge crane 20. Mezzanine or Structural Floor 1. Portal Frame - Rafter 2. Portal Frame - Column 3. Wind bracing 4. Purlins 5. Wall Rails 6. Roof panels 7. Wall panels 8. Astrotherm insulation 9. Eave gutter 10. Monovent
  • 26.
  • 27.
  • 28.
  • 29.
  • 30.
  • 32. Wall Panels                                                                                                                                                                                                
  • 37. Pedestrian door                                                                                                                                                                                                                                                                                                     
  • 38. Structural steel in buildings Airport terminal complex
  • 39. A steel joist and king post truss system provide support for the 650,000sq. ft. roof.
  • 40. This framing system creates wide-open, column-free spaces king post trusses form the lateral-force resisting system, eliminating the need for bracing and further increasing flexibility of the interior space.
  • 42. The upper tier, cantilevering 46' over the suite and club Levels supported by column groupings consisting of four massive steel HSS placed at the midpoint alternating structural bays.
  • 43.