The standard specifies that safety techniques should be conformed to when designing, manufacturing, installing, applying, maintaining, or inspecting the tower crane (hereafter referred to as tower machine).
This standard is applicable to the construction tower crane. This standard can also be used as the implement reference for tower crane for other purposes.
This standard is inapplicable to truck tower crane, mobile tower crane or crawler tower crane.
Foreword 4
1 Scope 5
2 Normative References 5
3 Complete Machine 5
4 Structure 6
4.1 Material 6
4.2 Connection 6
4.3 Ladder, Handrail and Retainer 7
4.4 Platform, Walkway, Mopboard and Handrail 9
4.5 Shear-leg Walkway 10
4.6 Operator Cab 13
4.7 The reject and Service Life of Structure Parts 13
4.8 Structure Mark of the Self-rising Tower Crane 14
4.9 Supplementary Structure Requirements of Self-erect Tower Crane 14
5. Mechanism and Parts 14
5.1 General Requirements 14
5.2 Steel Cable 14
5.3 Hook 15
5.4 Drum and Pulley 15
5.5 Brake 16
5.6 Wheel 16
6. Safety Device 16
6.1 Load-lifting Limiter 16
6.2 Lifting Moment Limiter 16
6.3 Travel Limit Device 17
6.4 Protection Device for Cable Break of Trolley 17
6.5 Axle-breaking Protection Device of Trolley 17
6.6 Steel Cable Locking Device 17
6.7 Anemoscope 17
6.8 Rail Clamp 18
6.9 Buffer and Stop Device 18
6.10 Rail-clearing Board 18
6.11 Locking Function of Top-rising Beam 18
7. Operation System 18
8. Electric System 19
8.1 General Provisions 19
8.2 Electric Control and Operation 20
8.3 Electric Protection 20
8.4 Lighting and Signal 20
8.5 Conducting Wire and Wire Laying 21
8.6 Cable Drum 21
8.7 Current Collector 21
9. Hydraulic System 21
10 Installation, Disassembly and Test 22
11 Operation and Usage 24
