GB 5144-2006 PDF English
US$85.00 · In stock · Download in 9 secondsGB 5144-2006: Safety code for tower cranes Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB 5144: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 5144-2006 | English | 85 |
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Safety code for tower cranes
| Valid |
| GB 5144-1994 | English | 399 |
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3 days
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Safety code for tower cranes
| Obsolete |
| GB 5144-1985 | English | RFQ |
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Safety rules for construction tower cranes
| Obsolete |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB 5144-2006
GB 5144-2006: Safety code for tower cranes---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB5144-2006
1 Scope ... 1
2 Normative References ... 1
3 Complete Machine ... 1
4 Structure ... 3
4.1 Material ... 3
4.2 · Connection ... 3
4.3 Ladder, Handrail and Retainer ... 3
4.4 Platform, Walkway, Mop board and Handrail ... 6
4.5 Shear-leg Walkway ... 7
4.6 Operator Cab ... 9
4. 7 The reject and Service Life of Structure Parts ... 10
4.8 Structure Mark of the Self-rising Tower Crane ... 11
4.9 Supplementary Structure Requirements of Self-erect Tower Crane ... 11
5 Mechanism and Parts ... 11
5.1 General Requirements ... 11
5.2 Steel Cable ... 12
5.3 Hook ... 12
5.4 Drum and Pulley ... 13
5.5 Brake ... 13
5.6 Wheel ... _... 13
6 Safety Device ... 14
6.1 Load-lifting Limiter ... 14
6.2 Lifting Moment Limiter ... 14
6.3 Travel Limit Device ... 14
6.4 Protection Device for Cable Break ofTrolley ... 15
6.5 Axle-breaking Protection Device of Trolley ... 15
6.6 Steel Cable Locking Device ... 15
6. 7 Anemoscope ... 15
6.8 Rail Clamp ... l5
6.9 Buffer and Stop Device ... 15
6.10 Rail-clearing Board ... 16
6.11 Locking Function ofTop-rising Beam ... 16
7 Operation System ... -... 16
8 Electric System ... 1 7
8.1 General Provisions ... 17
8.2 Electric Control and Operation ... 18
8.3 Electric Protection ... 18
8.4 Lighting and Signal... 19
8.5 Conducting Wire and Wire Laying ... 19
8.6 Cable Drum ... 19
8.7 Current Collector ... 20
9 Hydraulic System ... 20
10 Installation, Disassembly and Test ... 20
11 Operation and V sage ... 22
Safety Code for Tower Cranes
1 Scope
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.
2 Normative References
The following standards contain provisions which, through reference in this text,
constitute provisions of this standard. For dated reference, subsequent amendments to, or
revisions of (excluding corrigendum contents), any of these publications do not apply. For
undated references, the latest edition of the normative document referred to applies.
GB/T 5972 Wire Ropes for Cranes-Code of Practice for Examination and Discard
(ISO 4309.1990)
GB/T 5973 Cuneiform Connector for Use with Steel Wire Ropes
GB/T 5975 Clamping Plates for Fixing Steel Wire Ropes
GB/T 5976 Wire Rope Grips
GB/T 9462-1999 Specification for Tower Cranes
GB/T 13752-1992 Design rules for Tower Cranes
JG/T 53 Wheel Specification for Tower Cranes
JG/T 54-1999 Specification for Operator Cab ofTower Cranes
JG/T 10 Tower Cranes Specification for Operation
JG/T 5112 Steel Structure Manufacturing and Testing for Tower Cranes
3 Complete Machine
3.1 The working conditions of tower crane should conform to the provisions of clause 4.1.1 ,
4.1.3 and 4.1.4 in GB/T 9462- 1999.
3.2 The anti-rollover stability of tower crane should conform to the provision of clause
4.1.6 in GB/T 9462-1999.
3.3 During jacketing tower crane mast, even if the cylinder rod extends out of the hoisting
cylinder during the hoisting circulation process, the upper end of tower body should be 60mm
higher than the central line of upper-lined directional roller (or sliding sleeve) at least.
3.4 The tower crane should guarantee no matter on under the working or off working
conditions, the balancing weight or mould weight won't occur any shift or being brushed off,
no crashing among balancing weight wheels. If the balancing weight is made of particulate
material, then the waterproof and weight guaranteeing ballast box should be applied.
3.5 The product label should be sealed on a previous position on the bottom of the tower
body. The tablet contents should conform to the provision of clause 7 .1.1 in GB/T 9462-
1999, namely, setting up tablet or display screen for the general-used operational data on a
previous position in the operator cab of the tower crane. The tablet or display screen contents
should include the amplitude load meter, main performance parameter, hoisting speed and
hoisting capacity at each threshold etc .. The tablet or display screen should be installed fixed
or safely with eye-catching and clear writing.
3.6 The stochastic technique file provided by tower crane manufacturer should conform to
the relevant provisions of GB/T 9462.
The operation manual of tower crane should not only conform to the provision of Clause
7.2.6 in GB/T 9462-1999, but also contains the following contents.
a) The low temperature mechanical property, operating temperature range and other
relevant factors of the main load-carrying structures will decide the application temperature,
normal service life or utilize grade, load-up condition, work class and allowable pressure of
tower crane;
b) The adjusting method, adjusting parameter and error indices of safety device;
c) If it is required to install balancing weight before shear leg, then balancing weight
quantity, specification and position should be indicated;
d) After the completing the shear leg assembly, the testing items and testing method for
the connecting pieces like axis pin and location-plate for installing purpose etc.;
e) The safety working steps, applied balancing measures, testing parts and testing
items during the tower crane mast section inserting and retracting period;
f) The model, specification and length of the applied steel wire;
g) The pre-tightening force, pre-tightening force moment and testing points of the high
strength bolt;
h) The length gravity and dismounting suspension centre of shear leg and balance arm.
3.7 The end user of tower crane should establish equipment record, and at least the
following contents should be contained.
a) Each installation site, utility time, and operation shift record;
b) Routine testing record should be established before each start-up according to
relevant provisions in GB/T 9462;
4.3.3 The vertical ladder about 75°~90° titling to horizontal surface should meet the
following conditions.
a) The boundary beams width of no less than 300mm;
b) Pedal lever interval of250 mm~300mm;
c) The free space between pedal lever and offside structure should be no less than
160mm;
d) The boundary beam should be designed applicable to grad or without any pointed
edges;
e) The pedal lever diameter should be between 16mm to 40mm;
f) Pedal lever center. If 1200N force can be born within. any 1 m area, then the vertical
ladder won't be deformated under any conditions;
g) The breakout gap among tower body boundary beams shouldn't be greater than
40mm.
4.3.4 Retainers retainer should be installed for those vertical ladders about 2m higher of the
ground, and retainers should conform to the following conditions.
a) With diameter of 600mm~800mm;
b) The profiles should be connected with 3 to 5 pieces of vertical battens, which is
uniformly distributed in the retainer circle direction;
c) Max. interval. 900mm with 3 pieces of vertical battens on the profile; 500mm with 5
pieces of vertical battens on the profiles;
d) If lOOON force can be born within any O.lm area, then the retainer won't be
deformated under any conditions.
4.3.5 If the ladder is placed within the tower body, the tower body structure satisfies the
following conditions, and the tower profile won't allow any 600mrn-diameter sphyre to
penetrate (see Figure a), the retainers can be withdrew.
a) The side length of square tower body should be no bigger than 750mrn, see Figure
b·
b) The side length of equilateral triangle tower body should be no bigger than 11 OOmm,
see Figure2;
c) The side length of right angle isosceles triangle tower body should be no bigger than
11 OOmm, see Figure 3 a); or if the ladder is placed along the diagonal direction of tower body,
then the side length of tower body should be no bigger than 11 OOmm, see Figure 3 b);
d) The diameter of tubular tower body should be no bigger than 1 OOOmm, see Figure 4;
e) Ready-packaged tower crane.
due to erode or abrasion of load-carrying structure of tower crane, then it should b...
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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