tower cranes
TRANSCRIPT
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Mazen Mohamad Tarek TOWER CRANES
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CONTENTS
• INTRODUCTION• TYPES OF CRANES• DIFFERENT COMPONENTS OF CRANE• ERECTION PROCEDURE• UTILITY TO PROJECT / SITE• DISADVANTAGES • STATISTICAL ANALYSIS• CONCLUSION & CONSENSUS
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What Are Tower Cranes?
• A crane is a tower or derrick equipped with cables and pulleys that is used to lift and lower materials.
• Ancient Crane• Mobile Crane• Telescopic Crane• Tower Crane• Loader Crane• Stacker Crane• Gantry Crane• Overhead Crane
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Tower Cranes
• Fixed to the ground • Horizontal boom is balanced
asymmetrically • Short arm carries a
counterweight of concrete blocks • Long arm carries the lifting gear
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Tower FootingTower Footing
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Tower Footing
Fixed Tower
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Tower Footing
Fixed Tower
Climbing Tower
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Tower Footing
Fixed Tower
Climbing Tower
Swing Ring
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Tower Footing
Fixed Tower
Climbing Tower
Swing Ring
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Tower Footing
Fixed Tower
Climbing Tower
Counter Weight
Swing Ring
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Tower Footing
Fixed Tower
Climbing Tower
BoomCounter Weight
Swing Ring
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Tower Footing
Fixed Tower
Climbing Tower
BoomCounter Weight
Swing Ring
Trolley
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Tower Footing
Fixed Tower
Climbing Tower
Operator's Cabin
BoomCounter Weight
Swing Ring
Trolley
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Tower Footing
Fixed Tower
Climbing Tower
Operator's Cabin
Boom
Load Line
Counter Weight
Swing Ring
Trolley
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The base
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Mast / Fixed Tower
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Swing ring
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Boom
Counter Weight
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Erection of Boom
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The Operator’s Cabin
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ABC
D
Radius of the Boom
Location of the Tower Crane
Tower Crane
Rohan TapovanRohan Builders Pvt. Ltd. (India)Gokhale Nagar,Near Mendhi FarmSenapati Bapat Marg,Pune.
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UTILITY TO PROJECT
• TIME SAVING MACHINE• MULTIPURPOSE IN USE• HEAVY DUTY• HIGH PERFORMANCE• EASE EVEN IN CRITICAL SITUATION• CAN BE TRANSFERRED FROM ONE PROJECT
TO ANOTHER• WHEN IDLE , NO OVERHEADS• OPTIMUM UTILISATION OF RESOURCES
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DISADVANTAGES• CUMBERSOME TO ERECT & DISMANTLE.• HIGH INITIAL COST FOR ERECTION AS WELL
AS DISMANTLING.• SKILLED OPERATORS ARE REQUIRED.• IF IN DEFECTIVE SESSION , HAMPERS THE
SCHEDULE.• MAINTANANCE IS DIFFICULT. • SOMETIMES CREATE SAFETY PROBLEMS.• LIMITED TO PROJECTS WITH LARGE AREAS.
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•Thank you …..,,