General layout of steel structures

17,710 views

Published on

explains the arrangement of steel systems in case of one storey industrial buildings

Published in: Education, Business
4 Comments
55 Likes
Statistics
Notes
No Downloads
Views
Total views
17,710
On SlideShare
0
From Embeds
0
Number of Embeds
14
Actions
Shares
0
Downloads
1,624
Comments
4
Likes
55
Embeds 0
No embeds

No notes for slide

General layout of steel structures

  1. 1. General Layout Eng. Maha Moddather mahamoddather@eng.cu.edu.eg
  2. 2. Introduction Mx Concrete Beam subjected to Bending Moment around Major Axis Compression d Tension AS If Mx increases increase d or As Concrete tensile strength is neglected
  3. 3. Introduction Mx Concrete Beam subjected to Bending Moment around Major Axis Compression d AS ’ Compression Tension AS If d is limited & As = Asmax Use Compression reinforcement Concrete tensile strength is neglected
  4. 4. Introduction Concrete Beam subjected to Bending Moment around Major Axis d AS ’ Concrete strength is neglected AS I-Beam Section usually used for beams and columns in steel structures
  5. 5. Introduction Types of Buildings with respect to Construction Materials Timber Building Concrete Building
  6. 6. Introduction Types of Buildings with respect to Construction Materials Steel BuildingCombined Steel-Concrete Building
  7. 7. Introduction Typical Steel Structures Industrial Buildings
  8. 8. Introduction Typical Steel Structures Multi-storey Bldgs. Sea Platform
  9. 9. Introduction Typical Steel Structures Time Warner Center 2003The Chicago Skyscraper Skyscrapers
  10. 10. Introduction We will study Industrial Buildings this year Steel Frame Steel Truss
  11. 11. Introduction Advantages of Steel: Economy Durability Design FlexibilityDesign Flexibility All Weather Construction Easy Repair 100% Recyclable
  12. 12. Components of Structures and General Layout Bracing Systems Dead & Live Loads Course Outline Crane & Wind Loads Tension Members Compression Members Dr. Maha Moddather
  13. 13. Bracing Members Axially Loaded Columns Beams: Course Outline Purlins & Side Girts CTG & Monorail Floor Beams Beams - Columns Dr. Maha Moddather
  14. 14. Preliminary Grading 100% Introduction Term Work 30% Midterm Exam 15% Sheets 5% Quizes 10% Final Exam 70%
  15. 15. Introduction Steel Sections IPE Sections BFI Sections UPN Sections L Sections T Sections PIPE Sections BOX Sections
  16. 16. Introduction Steel Sections
  17. 17. 1. Types of Main Systems 2. Arrangement of Main Systems 3. Roof Slope General Layout 4. Roof Covering Materials 5. Side Cover 6. End Gables 7. Bracing System Dr. Maha Moddather
  18. 18. 1. Types of Main Systems 60 m No columns are allowed at the Columns are allowed on the Boundary of the Area 20 m 60 m allowed at the interior space 20 m Clear Height = 7m Dr. Maha Moddather
  19. 19. 1. Types of Main Systems SystemsSystems Simple Beam Simple Beam Rigid Frame Rigid Frame Simple Truss Simple Truss Column Truss Frame Column Truss FrameBeamBeam FrameFrame TrussTruss FrameFrame Dr. Maha Moddather
  20. 20. 1. Types of Main Systems SystemsSystems Simple Beam Simple Beam Rigid Frame Rigid Frame Simple Truss Simple Truss Column Truss Frame Column Truss Frame Span 7 - 10m Dr. Maha Moddather
  21. 21. 1. Types of Main Systems SystemsSystems Simple Beam Simple Beam Rigid Frame Rigid Frame Simple Truss Simple Truss Column Truss Frame Column Truss Frame Span 12 – 25 m Dr. Maha Moddather
  22. 22. 1. Types of Main Systems SystemsSystems Simple Beam Simple Beam Rigid Frame Rigid Frame Simple Truss Simple Truss Column Truss Frame Column Truss Frame Span 15 - 25m Dr. Maha Moddather
  23. 23. 1. Types of Main Systems SystemsSystems Simple Beam Simple Beam Rigid Frame Rigid Frame Simple Truss Simple Truss Column Truss Frame Column Truss Frame Span 25 - 40m Dr. Maha Moddather
  24. 24. 1. Types of Main Systems SystemsSystems Simple Beam Simple Beam Rigid Frame Rigid Frame Simple Truss Simple Truss Column Truss Frame Column Truss Frame Span 25 - 40mSpan 15 - 25mSpan 12 – 25 mSpan 7 - 10m Dr. Maha Moddather
  25. 25. 2. Arrangement of Main System 60 m Main System Rigid Frame Main System parallel to the Short Direction Spacing (S) = 4 7 m 20 m 60 m Rigid Frame 20 m Clear Height = 7m Short Direction Dr. Maha Moddather
  26. 26. 2. Arrangement of Main System S = 4 – 7 m
  27. 27. 2. Arrangement of Main System Main System
  28. 28. 2. Arrangement of Main System 60 m Main System parallel to the Short Direction Spacing (S) = 4 7 m S = 6 m Rafter / Girder 20 m 60 m 20 m Clear Height = 7m S = 6 m Columns Dr. Maha Moddather
  29. 29. 3. Roof Slope To accommodate rain water drainage. Slope 1: 5 1: 15 1 10 Slope 1:10 Slope 1:10 20 m Clear Height = 7m 20 m Clear Height = 7m Dr. Maha Moddather
  30. 30. 3. Roof Slope Slope can reach values equal to: (1:1) in case of bulk material storage. Slope 1:1 Slope 1:1 Dr. Maha Moddather
  31. 31. 4. Roof Covering Materials Covering Material Flexible Cover Corrugated Sandwich Rigid Cover PrecastCorrugated Sheets Sandwich Panels R.C. slab Precast Units Dr. Maha Moddather
  32. 32. 4. Roof Covering Materials Covering Material Flexible Cover Corrugated Sandwich Rigid Cover PrecastCorrugated Sheets Sandwich Panels R.C. slab Precast Units Dr. Maha Moddather
  33. 33. 4. Roof Covering Materials Covering Material Flexible Cover Corrugated Sandwich Rigid Cover Precast Dr. Maha Moddather Corrugated Sheets Sandwich Panels R.C. slab Precast Units
  34. 34. 4. Roof Covering Materials Covering Material Flexible Cover Corrugated Sandwich Rigid Cover Precast Dr. Maha Moddather Corrugated Sheets Sandwich Panels R.C. slab Precast Units
  35. 35. 4. Roof Covering Materials 60 m S = 6 m Spacing bt. secondary beams a For Flexible Roof: a ≤ 2m For Rigid Roof : a ≤ 3m Dr. Maha Moddather 20 m 60 m S = 6 m 20 m Very large area for the covering material 1 10 Clear Height = 7m Use Secondary Beams
  36. 36. 4. Roof Covering Materials 60 m S = 6 m Used Sections for Purlins: a = 2 m Channel Section Z Section Dr. Maha Moddather 20 m 60 m S = 6 m 20 m Clear Height = 7m 1 10 Secondary Beams / Purlins
  37. 37. 4. Roof Covering Materials 60 m S = 6 m a = 2 m Corrugated Sheets Dr. Maha Moddather 20 m 60 m S = 6 m 20 m Clear Height = 7m 1 10 Secondary Beams / Purlins
  38. 38. 4. Roof Covering Materials a = 2 m 20 m Refers to the horizontal distance Column Rafter Roof CoverPurlin Dr. Maha Moddather 20 m
  39. 39. 4. Roof Covering Materials a = 2 m 20 m Refers to the horizontal distance Column Rafter Roof Cover Roof Cover Purlin Purlin Top Chord Dr. Maha Moddather 20 m B Column Purlins should be at Truss Joints h Bottom Chord VerticalsDiagonals
  40. 40. 4. Roof Covering Materials a = 2 m 20 m Refers to the horizontal distance Column Rafter Roof Cover Roof Cover Purlin Purlin Dr. Maha Moddather 20 m B Column Purlins should be at Truss Joints a h H H = B 12 - 16 h ≥ 1 m
  41. 41. 4. Roof Covering Materials Purlins Dr. Maha Moddather
  42. 42. 5. Side Cover Dr. Maha Moddather Corrugated Sheets Brick Walls
  43. 43. 5. Side Cover Column Rafter Roof Cover Purlin a’ ≤ 2 Side Girt Side Cover Dr. Maha Moddather a’ 2 m 20 m 1.5 – 3.0 m Brick Wall
  44. 44. 5. Side Cover Side Girts Dr. Maha Moddather
  45. 45. 6. End Gables Column Rafter Roof Cover Purlin Side Girt Side Cover Brick Add End Gable Columns with spacing 4 – 6 m Dr. Maha Moddather Column 20 m 1.5 – 3.0 m Brick Wall
  46. 46. 6. End Gables Column Rafter Roof Cover Purlin Side Girt Side Cover Brick Add End Gable Columns with spacing 4 – 6 m Dr. Maha Moddather Column 20 m 1.5 – 3.0 m Brick Wall End Gable Column 5 m 5 m 5 m 5 m
  47. 47. 6. End Gables 60 m S = 6 m 5 m End Gable Column Dr. Maha Moddather 20 m 60 m S = 6 m
  48. 48. 6. End Gables Column Rafter Roof Cover Purlin Side Girt Side Cover Brick Use Side Girts at distance ≤ 2.0 m End Gable Side Girt a’ ≤ 2 m Dr. Maha Moddather Column 20 m 1.5 – 3.0 m Brick Wall End Gable Column 5 m 5 m 5 m 5 m
  49. 49. 6. End Gables Column Rafter Roof Cover Purlin Side Girt Side Cover Brick For trusses: End Gable Columns at truss Joints Dr. Maha Moddather Column 20 m 1.5 – 3.0 m Brick Wall End Gable Column 5 m 5 m 5 m 5 m
  50. 50. 6. End Gables Column Rafter Roof Cover Purlin Side Girt Side Cover Brick Access Doors End Gable Side Girt a’ ≤ 2 m Dr. Maha Moddather Column 20 m 1.5 – 3.0 m Brick Wall End Gable Column 5 m 5 m 5 m 5 m Access Opening
  51. 51. 6. End Gables Column Rafter Roof Cover Purlin Side Girt Side Cover Brick Access Doors Side Girt a’ ≤ 2 m Dr. Maha Moddather Column 20 m 1.5 – 3.0 m Brick Wall 5 m 6 m 5 m Access Opening
  52. 52. 6. End Gables Types of Doors Roller Shutter Door Sliding Door (One side) Dr. Maha Moddather Sliding Door (Two side)
  53. 53. 7. Bracing System Bracing system is provided to frames to provide stability under the lateral loads. Frame can support loads in the lateral direction Dr. Maha Moddather Short Direction the lateral direction
  54. 54. 7. Bracing System Bracing system is provided to frames to provide stability under the lateral loads. Dr. Maha Moddather Long Direction
  55. 55. 7. Bracing System Bracing System includes: Horizontal Bracing: Bracing in a horizontal plane provides a load path to transfer the horizontal forces (wind pressure on the cladding) to the planes of vertical bracing. Horizontal Dr. Maha Moddather Vertical Bracing Horizontal Bracing Vertical Bracing Bracing in vertical planes (between lines of columns) provides load paths to transfer horizontal forces to ground level.
  56. 56. 7. Bracing System Horizontal Bracing Vertical Bracing
  57. 57. 7. Bracing System Use Bracing at the First and last bays. Use bracing at intermediate bays, if length > 40 m. Intermediate Bay First Bay Last Bay
  58. 58. 7. Bracing System 60 m 5 m Hz. Bracing Vl. Bracing SideView 7 m 60 m Plan SideView
  59. 59. 7. Bracing System 60 m 5 m Hz. Bracing Vl. Bracing SideView Upper Hz. Bracing 60 m Plan at U.W.B. Level SideView Upper Hz. Bracing Lower Hz. Bracing (U.W.B.) (L.W.B.)
  60. 60. Assignment Prepare a General Layout Drawing (Using Ao sheet): Roof Plan: Arrangement of Main System. Arrangement of Purlins. Horizontal Bracing. End Gable ColumnsEnd Gable Columns Main System Elevation. End Gable Elevation. Side view for Vertical Bracing/ Side Girts.

×