tower cranes
TRANSCRIPT
Mazen Mohamad Tarek TOWER CRANES
CONTENTS
• INTRODUCTION• TYPES OF CRANES• DIFFERENT COMPONENTS OF CRANE• ERECTION PROCEDURE• UTILITY TO PROJECT / SITE• DISADVANTAGES • STATISTICAL ANALYSIS• CONCLUSION & CONSENSUS
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
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
Tower FootingTower Footing
Tower Footing
Fixed Tower
Tower Footing
Fixed Tower
Climbing Tower
Tower Footing
Fixed Tower
Climbing Tower
Swing Ring
Tower Footing
Fixed Tower
Climbing Tower
Swing Ring
Tower Footing
Fixed Tower
Climbing Tower
Counter Weight
Swing Ring
Tower Footing
Fixed Tower
Climbing Tower
BoomCounter Weight
Swing Ring
Tower Footing
Fixed Tower
Climbing Tower
BoomCounter Weight
Swing Ring
Trolley
Tower Footing
Fixed Tower
Climbing Tower
Operator's Cabin
BoomCounter Weight
Swing Ring
Trolley
Tower Footing
Fixed Tower
Climbing Tower
Operator's Cabin
Boom
Load Line
Counter Weight
Swing Ring
Trolley
The base
Mast / Fixed Tower
Swing ring
Boom
Counter Weight
Erection of Boom
The Operator’s Cabin
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.
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
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.
•Thank you …..,,