Mobile crane

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Mobile cranes
Points in common in regulation around the world.

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Mobile crane

  1. 1. MOBILE CRANE RAW REGULATIONS AROUND THE WORLD
  2. 2. MOBILE CRANE INDEX • PARTS OF MOBILE CRANE -CHASSIS OR BASE  Truck mounted  Yard Crane/Low Headroom  Wheeled rough crane  Wheeled all terrain crane  Crawler cranen  Travel on a railroad track  Special Base  DIMENSIONS  OUTRIGGERS  LEVEL -SWING MECHANISM -UPPERWORKS OR SUPERSTRUCTURE  Boom  Fly jib  Hook  Wedge sockets  Sheaves-blocks  Sheaves  Hoist drum-wich head  Cab  Counterweight • PARAMETERS OF LOADS • LINEAR PARAMETERS OF CRANES • MOTIONS AND SPEEDS • TOTAL LOAD IN CHART • DUTY CHARTS • LOAD RATING CHART • WORKING SAFE WITH CRANE Location site-size, ground conditions, level Lift & Carry- Free on wheels-VER ESTO NO SEEEE Lateral efforts .Verticalization & dragging of loads Increase in the radius of load Overload or impact---Impact on the boom Wind Electricity Special cases • SIGNAL • SELECTION OF CRANES • LIFTING ACCESSORIES
  3. 3. HOIST MECHANISM JIB BOOM SHEAVES LOAD BLOCKS HOOK ROPE COUNTERWEIGHT WINCH CAB UPPERWORKS OR SUPERSTRUCTURE PARTS OF MOBILE CRANE SWING MECHANISM TRAVEL MECHANISM CHASSIS OR BASE
  4. 4. CHASSIS/BASE (MOUNTING) Truck mounted Yard Crane/Low Headroom Wheeled rough Wheeled all terrain Crawler Travel on a railroad track Special Base
  5. 5. Travels on public highways at normal road speed, meets road traffic regulations BASE-Truck Mounted Crane
  6. 6. Designed for level ground, hard. Packed or within factories. Short chassis. Possibly fitted with outriggers/stabilisers.Travel with suspended loads.One cab - driven and operated, limited vision BASE-Yard Crane/Low Headroom
  7. 7. BASE-Terrain Rough Off road, large balloon tyres,slow moving,highly manoeuvrable
  8. 8. BASE-All Terrain Crane Hybrid - truck and rough terrain, fast on public highways, most models all axle drive and steer, therefore highly manoeuvrable, traverses uneven ground
  9. 9. Used on sites with poor ground bearing pressure, which often proves to be unsuitable for wheeled cranes. Crane is transported to site in parts. Erection and dismantling May require an auxiliary crane. Requires large area for erection especially for long Boom configurations and transportation. BASE- Crawler Crane
  10. 10. BASE-Travel on a railroad track LOCOMOTIVE CRANE
  11. 11. BASE-Special Base
  12. 12. BASE-Dimensions Base-traveling CRANE CARRIER-undercarriage Axes horizontal and vertical (Bogie)
  13. 13. Base-traveling BASE-Dimensions
  14. 14. SPREADER MAT/PAD BASE-Outriggers JACKS
  15. 15. BASE-Outriggers
  16. 16. BASE-Outriggers
  17. 17. BASE-Outriggers -Fully, part extended - controlled loadings -360 or over sides and rear as set by the manufacturer partial/fully extended
  18. 18. BASE-Level
  19. 19. Slew Ring SWING MECHANISM
  20. 20. Slewing motion-should be at least 0.5 m around. SWING MECHANISM
  21. 21. HOIST MECHANISM JIB BOOM SHEAVES LOAD BLOCKS HOOK ROPE COUNTERWEIGHT WINCH CAB UPPERWORKS OR SUPERSTRUCTURE UPPERWORKS
  22. 22. BOOM TYPES 1..TELESCOPIC 2.LATTICE 3.LUFFER BOOM
  23. 23. FLY JIB FLY JIB TYPES 1.RECLINING/FOLDING= JIB OFFSET 2.FIXED(PERMANET)
  24. 24. BOOM & JIB
  25. 25. BOOM ATTACHED
  26. 26. HOOK All be labeled with their rated capacity and weight. All hook be equiped with latches
  27. 27. SECURITY SYSTEMS:  Indicator/limiter (RCI/L) –(MAX. LIFTING OF LOAD WHIT THIS CONFIGURATION)  Anti-two Block (Over-hoist Limit switch)  Safety catch(es) HOOK RCI Anti-two Block
  28. 28. ANTI-TWO BLOCK (OVER-HOIST LIMIT SWITCH) HOOK
  29. 29. Most common method of terminating ropes on cranes. All parts must match in size. Measure rope diameter to ensure proper size. WEDGE SOCKETS
  30. 30. Rope Reeving SHEAVES-BLOCKS
  31. 31. Damage. Size of rope used. Guards Lubrication SHEAVES
  32. 32. HOIST DRUM-WINCH HEAD
  33. 33. COUNTERWEIGHT SUPERLIFT Sobre ruedas, estructura giratoria, pluma de celosía y equipo especial
  34. 34. CAB
  35. 35. CAB
  36. 36. PARAMETERS OF LOADS PARAMETERS OF LOADS LOAD MOMENT - M = LxQ LOAD TIPPING MOMENT- Ma=AxQ DESIGN MASS (no ballast, liquid) TOTAL MASS
  37. 37. PARAMETERS OF LOADS Mload=Mq= AxQload Mcrane=Mc=La x Qcrane ESTABILITY- Ml = Mc Mc = 100 TN x 4m = 400 TNxm Mq= 20 TN x ¿? =------ Mc 20 TN x ¿? = 400 TNxm, ¿? = 400 TNxm/20TN = 20 m MAXIMUM RADIUS TO HAVE ESTABILITY
  38. 38. LINEAR PARAMETERS OF CRANE PARAMETERS OF CRANES RADIUS OUTREACH TO TIPPING AXIS-A TAIL RADIUS LOAD-LIFTING HEIGHT-H LOAD LOWERING HEIGHT-h LIFTING RANGE-D BASE ON OUTRIGGERS -Bo DISTANCE BETWEEN OUTRIGGERS -Ko GRADIENT i = h/B GRADEABILITY j= h/B % SUPPORT CONTOUR TRACK CURVATURE RADIUS Rk MINIMUM TURNING RADIUS-R CRANE CLEARANCE LINE BOOM ANGLE JIB ANGLE Tail radius
  39. 39. MOTIONS AND SPEEDS MOTIONS LIFTING(LOWERING) OF LOAD PRECISION LOAD LOWERING DERRICKING (LUFFING) CHANGE IN RADIUS (like Vr) SPEEDS OF WORKING MOTIONS LOAD LIFTING (LOWERING)SPEED Vn PRECISION LOAD LOWERING SPEED Vm SLEWING SPEED w TRAVELLING SPEED Vk DERRICKING SPEED Vr DERRICKING TIME TRANSPORT (ROAD)SPEED Sobre ruedas, desplazamiento rápido, de estructura giratoria y pluma telescópica Sobre ruedas, todo terreno, de estructura giratoria y pluma telescópica Vn Vm Vk W Vr Derriking (luffing) Vn Vm Vr Vo
  40. 40. TOTAL LOAD IN CHART
  41. 41. • Legal requirement • Source of basic information • Configurations • Duties • Structural strength • Critical boom angle • Practical working • 75% (85%) capacity for tipping/structural strength • 100% of safe working load • Test conditions • Safety factors DUTY CHARTS
  42. 42. LOAD RATING CHART
  43. 43. LOAD RATING CHART
  44. 44. LOAD RATING CHART
  45. 45. LOAD RATING CHART
  46. 46. LOAD RATING CHART
  47. 47. LOAD RATING CHART Diagram with the reaches
  48. 48. LOAD RATING CHART
  49. 49. LOAD RATING CHART
  50. 50. WORK SAFE WITH CRANE Location site-size, ground conditions, level Lift & Carry- on wheels Lateral efforts .Verticalization & dragging of loads Increase in the radius of load Overload or impact---Impact on the boom Wind Electricity Special cases
  51. 51. Location site- size, ground conditions Crane 600 mm clearance any obstacle.
  52. 52. h B2 B1 Uneven ground or soft: 2 x depth of wall B2 = 2 x h Hard ground : 1 x depth of wall B1 = 1 x h Location site- ground conditons
  53. 53. Location site- level Tilt Boom length Radius Increas e radius 1º 30 m 15 m 0.42 m 1º 42 m 20 m 0.64 m 2º 30 m 15 m 0.9 m 3º 30 m 15 m 1.34 m 4º 30 m 15 m 1.77 m 5º 30 m 15 m 2.21 m 5º 42 m 20 m 3.14 m
  54. 54. Lift & Carry- on wheels Free On Wheels: -On rubber, 360 degree, static only -Pinned to rear of crane -Shortest boom (Restricted jib length) -Creep speed -Firm level ground -Axle locks -Tyre pressures
  55. 55. Lateral efforts . Verticalization & dragging of loads Sharp turns Dragging loads
  56. 56. Increase in the radius of load
  57. 57. Enough distance Overload or impact---Impact on the boom
  58. 58. Out-of service 47-52 km/h Extremaly careful 30-40 km/h (8,33-11,11 m/s) Manufacturer’s recomendations WIND
  59. 59. ELECTRICITY
  60. 60. No Lifting equipment should be closer than:  15m to overhead power lines suspended from steel towers  9m to overhead lines supported on wooden poles ELECTRICITY
  61. 61. WORK WITH MORE THAN ONE CRANE: QCRANE 1 = (A2 x Q) / L = (2 m x 100 TN )/4 m = 50 TN QCRANE 2 = (A1 x Q )/L = (2 m x 100 TN )/4 m = 50 TN L= distance between crane-hook-cg/ between support CRANE 2 SUPPORT BEAM SO NOW IT IS BETWEEN CRANE 1 AND BEAN SUPPORT QCRANE1 = (A2 x Q) / L = (8 m x 100 TN )/8 m = 80 TN QSUPPORT = (A1 x Q )/L = (2 m x 100 TN )/10 m = 20 TN SPECIAL CASES A2A1 L A2A1 L
  62. 62. SPECIAL CASES GRABBING AND MAGNET CRANE PILLING OPERATIONS (2 m) DEMOLITION AND BALLING OPERATIONS LIFTING PERSONS DYNAMIC COMPACTION
  63. 63. SIGNALS HOIST LOAD LOWER LOAD RAISE BOOM LOWER BOOM HOIST LOAD SLOWLY RAISE BOOM AND LOWER LOAD LOWER BOOM AND RAISE LOAD SWING LOAD IN DIRECTION FINGER POINTS STOP DOG EVERYTHING EXTEND BOOM RETRACT BOOMUSE MAIN HOIST USE WHIPLINE (AUXILIARY HOIST) STOP
  64. 64. • Points to be considered: – weights, dimensions and characteristics of loads – operational speeds, radii, heights of lift and areas of movement – number, frequency and types of lifting operations – length of time on site – site, ground and environmental or site and building restrictions – space available for crane access, erection, travelling operations and dismantling – special requirements or limitations – costs - not at expense of safety SELECTION OF CRANES
  65. 65. LIFTING ACCESSORIES

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