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TOWER CRANES.pdf
- 2. TOPICS TOPICS INTRODUCTION INTRODUCTION TYPES OF CRANES TYPES OF CRANES DIFFERENT COMPONENTS OF CRANE DIFFERENT COMPONENTS OF CRANE ERECTION PROCEDURE ERECTION PROCEDURE UTILITY TO PROJECT / SITE UTILITY TO PROJECT / SITE DISADVANTAGES DISADVANTAGES STATISTICAL ANALYSIS STATISTICAL ANALYSIS CONCLUSION & CONSENSUS CONCLUSION & CONSENSUS
- 3. What Are Tower Cranes? What Are Tower Cranes? A A crane crane is a tower or derrick equipped with cables and is a tower or derrick equipped with cables and pulleys that is used to lift and lower materials. pulleys that is used to lift and lower materials. Ancient Crane Ancient Crane Mobile Crane Mobile Crane Telescopic Crane Telescopic Crane Tower Crane Tower Crane Loader Crane Loader Crane Stacker Crane Stacker Crane Gantry Crane Gantry Crane Overhead Crane Overhead Crane
- 4. Tower Cranes Tower Cranes Fixed to the ground Fixed to the ground Horizontal boom is balanced Horizontal boom is balanced asymmetrically asymmetrically Short arm carries a counterweight of Short arm carries a counterweight of concrete blocks concrete blocks Long arm carries the lifting gear Long arm carries the lifting gear
- 12. Tower Footing Fixed Tower Climbing Tower Boom Counter Weight Swing Ring Trolley
- 13. Tower Footing Fixed Tower Climbing Tower Operator's Cabin Boom Counter Weight Swing Ring Trolley
- 14. Tower Footing Fixed Tower Climbing Tower Operator's Cabin Boom Load Line Counter Weight Swing Ring Trolley
- 16. Mast / Fixed Tower Mast / Fixed Tower
- 19. Erection of Boom Erection of Boom
- 20. The Operator’s Cabin The Operator’s Cabin
- 21. Load Carried by the Boom Load Carried by the Boom Sr. No. Distance from the Mast ( in meters) Load Carrying Capacity ( in Metric Tonnes) 1 10m 6 2 20m 4 3 30m 3 4 40m 2 Tower Crane at the Site: Maximum unsupported height - 141 feet (43 meters) Maximum reach - 164 feet (50 meters) Maximum lifting power – 6.61 tons (6 metric tons), Counterweights – 17.6 tons (16 metric tons)
- 22. A B C D Radius of the Boom Location of the Tower Crane Tower Crane Rohan Tapovan Rohan Builders Pvt. Ltd. (India) Gokhale Nagar, Near Mendhi Farm Senapati Bapat Marg, Pune.
- 23. TIME SAVING MACHINE TIME SAVING MACHINE MULTIPURPOSE IN USE MULTIPURPOSE IN USE HEAVY DUTY HEAVY DUTY HIGH PERFORMANCE HIGH PERFORMANCE EASE EVEN IN CRITICAL SITUATION EASE EVEN IN CRITICAL SITUATION CAN BE TRANSFERRED FROM ONE CAN BE TRANSFERRED FROM ONE PROJECT TO ANOTHER PROJECT TO ANOTHER WHEN IDLE , NO OVERHEADS WHEN IDLE , NO OVERHEADS OPTIMUM UTILISATION OF RESOURCES OPTIMUM UTILISATION OF RESOURCES UTILITY TO PROJECT UTILITY TO PROJECT
- 24. DISADVANTAGES DISADVANTAGES CUMBERSOME TO ERECT & DISMANTLE. CUMBERSOME TO ERECT & DISMANTLE. HIGH INITIAL COST FOR ERECTION AS WELL HIGH INITIAL COST FOR ERECTION AS WELL AS DISMANTLING. AS DISMANTLING. SKILLED OPERATORS ARE REQUIRED. SKILLED OPERATORS ARE REQUIRED. IF IN DEFECTIVE SESSION , HAMPERS THE IF IN DEFECTIVE SESSION , HAMPERS THE SCHEDULE. SCHEDULE. MAINTANANCE IS DIFFICULT. MAINTANANCE IS DIFFICULT. SOMETIMES CREATE SAFETY PROBLEMS. SOMETIMES CREATE SAFETY PROBLEMS. LIMITED TO PROJECTS WITH LARGE AREAS. LIMITED TO PROJECTS WITH LARGE AREAS.
- 25. STATISTICAL ANALYSIS STATISTICAL ANALYSIS Sr. Sr. No. No. PARTICULARS PARTICULARS WITH WITH CRANE CRANE WITH WITH LIFTS LIFTS 1 1 CONCRETING @ 7000 Sq.ft 10 Hr 10 Hr 25 Hr 25 Hr 2 2 LABOURS REQUIRED FOR 15-25 15-25 45-60 45-60 3 3 QUANTITY OF CONCRETE 6 Bag 6 Bag 1 Bag 1 Bag 4 4 R/F SHIFTING WITHIN SITE 1-1.5 Hr 1-1.5 Hr 8-10 Hr 8-10 Hr 5 5 ERECTION - DISMANTLING COST 1,00,000 1,00,000 25,000 25,000 6 6 ½ YEARLY MAINTAINANCE COST 30,000 30,000 5,000 5,000 7 7 WASTAGE OF CONCRETE 0.25 % 0.25 % 3% 3%
- 26. Thank You . . . Thank You . . .