CE 403 Construction Methodology

1. CE 403ConstructionMethodology Cranes

2. Cranes • Lifting • Lowering • Transporting • Swinging • Traveling

3. Crawler Hydraulic Truck Lattice-Boom Truck Rough-Terrain Heavy Lift Tower Crane Types

6. Hydraulic Truck Crane

7. Lattice Boom Truck Cranes

8. Rough Terrain Cranes

10. Heavy Lift Cranes

12. Tower Cranes

13. Tower Crane Jibs

15. http://www.youtube.com/watch?v=RB91Sm-kGJ8 Tower Crane Extensions

16. Crane Elements

18. Out-Riggers

19. Main Hook or Hook Block

20. Headache Ball

21. Two blocking occurs when a hook block or hoist line attachment contacts Anti-two Block Warning System

22. Crane Capacity Lm – overturning moment of the load rm – load radius f – distance from center of rotation to outside edge of track s – distance from center of rotation to crane’s centroid We – total weight of equipment

25. Crane Working Rangevs. Radius Diagram

26. Multi-part lines

28. Crane Capacity Example • Can the tower crane, whose load chart is shown in the previous table, lift a 15,000-lb load at a radius of 142 feet? The crane has a L-7 jib and a two part line hoist. The slings that will be used for the pick weigh 400 lb.

29. Crane Capacity Solution • Weight of load = 15,000 lb • Weight of rigging = 400 lb (slings) • Required Capacity = 15,400 lb.

31. Crane Capacity Solution • Weight of load = 15,000 lb • Weight of rigging = 400 lb (slings) • Required Capacity = 15,400 lb. • Max lifting capacity at a 142’ hook reach is 16,400lb. • 16,400 > 15,400 – crane can make the pick

32. Lift Planning

33. Lift Planning

34. Lift Planning