GB 50278-2010 PDF English
US$285.00 · In stock · Download in 9 secondsGB 50278-2010: Code for construction and acceptance of crane installation engineering Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB 50278: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 50278-2010 | English | 285 |
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Code for construction and acceptance of crane installation engineering
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| GB 50278-1998 | English | RFQ |
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Code for construction and acceptance of cranes installation engineering
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GB 50278-2010: Code for construction and acceptance of crane installation engineering---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/GB50278-2010
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
UDC
P GB 50278-2010
Code for Construction and Acceptance of Crane Installation
Engineering
Issued on: MAY 31, 2010
Implemented on: DECEMBER 01, 2010
Issued by. Ministry of Housing and Urban-Rural Construction of the People’s
Republic of China;
General Administration of Quality Supervision, Inspection and
Quarantine of the People’s Republic of China.
Table of Contents
Foreword... 4
1 General Provisions... 7
2 Basic Requirements... 8
3 Crane Track & Buffer Stop... 10
4 Electric Hoist... 13
5 Overhead Crane with Simple Girder... 14
6 Overhead Traveling Crane... 17
7 Portal Bridge Crane... 20
8 Cantilever Crane... 23
9 Test Run of Crane... 25
9.1 Preparation for Test Run of Crane... 25
9.2 No Load Test Run of Crane... 25
9.3 Static Load Test Run of Crane... 26
9.4 Dynamic Load Test Run of Crane... 27
10 Acceptance... 28
Appendix A Measurement of Span for Crane and Track... 29
Appendix B Measurement of Camber for Crane... 33
Explanation of Wording in This Code... 37
List of Quoted Standards... 38
1 General Provisions
1.0.1 This standard is developed in order to improve the installation-engineering construction
level of cranes, promote technological progress; ensure engineering quality & safety and to
improve economic performance.
1.0.2 This standard is applicable to the construction and acceptance of the installation
engineering carried out with electric hoist, overhead crane with simple girder, overhead
traveling crane, portal bridge crane and cantilever crane.
1.0.3 Sound hoisting scheme must be developed for the hoisting with large, special and
complex cranes or for the crane hoisting in special and complex circumstance. If building
structure is used as the important load-carrying point for hoisting; the load-carrying
capability of the structure must be calculated and the scheme must be approved the
former design organization in written form.
1.0.4 In addition to the requirements stated in this standard, the construction and acceptance
of crane installation engineering shall meet the provisions specified in current national
relevant standards.
9 Test Run of Crane
9.1 Preparation for Test Run of Crane
9.1.1 Before test run of crane, it shall be inspected according to the following requirements.
1 As for hydraulic system, transmission case, lubrication point and movement mechanism,
the performance, specification and amount of the lubricant shall be in accordance with the
requirements of accompanying technical documents.
2 Brake, lifting weight limiter, hydraulic safety overflow mechanism, overspeed and
speed-limiting protection, overpressure and undervoltage protection, as well as overcurrent
protection shall be adjusted and calibrated according to the requirements of accompanying
technical documents.
3 Stop block, electrical system, interlocking device and emergency power off device
shall be sensitive, correct and reliable.
4 Operation direction of electromotor as well as operation indication direction of hand
wheel, hand grip, button and controller shall be consistent with the actual direction of
mechanism movement and action.
5 Wire cable ends shall be fixed and wound correctly and reliably on the grabbing
device, pulley block and coiling block.
6 The buffer, buffer stop, rail clamping device and anchorage device shall be correct,
sensitive, safe and reliable.
9.2 No Load Test Run of Crane
9.2.1 At the specified working range, each mechanism, electrical control system and grabbing
device shall operate normally; each limit stopper, safety device and interlocking device shall
be sensitive and reliable; operating handle, operating button and master controller shall be
consistent with the action of each mechanism.
9.2.2 When the hoisting mechanism and grabbing device go up to the terminal and limiting
position, the slowdown terminal switch and limit switch shall accurately, reliably and timely
give an alarm and power off.
9.2.3 When the trolley runs to the limiting position, its terminal low speed protection, limit
alarm and limit shall be accurate and reliable.
9.2.4 Cart running shall be in accordance with the following requirements.
1 Alarm sound or alarm bell sound shall accompany the movement.
2 When it moves to the limiting position at the cart track end, end alarm and limit shall
Note. 1 Camber for crane shall be inspected according to the requirements of Appendix B of this code.
2 S is the crane span (mm); L0 is the length of the effective cantilever (mm).
9.3.2 After the static test of the crane, the static stiffness of the crane shall be inspected with
rated lifting weight at the girder mid-span and effective cantilever. The static stiffness value
shall be in accordance with the requirements of accompanying technical documents, and the
inspection shall be in accordance with the following requirements.
1 Drive the no-load trolley to the end-span or outrigger, set measuring reference point
at the girder mid-span or effective cantilever.
2 Drive the trolley to the girder mid-span or effective cantilever, lift loads of rated
lifting weight to 200mm away from the ground, inspect after the loads are stable.
3 Static stiffness values of the crane girder or cantilever shall be calculated by the
distance that measuring reference point vertically moving down.
9.4 Dynamic Load Test Run of Crane
9.4.1 Dynamic load test run of each mechanism shall be carried out respectively. The
combined activity test run, if required, shall be in accordance with the requirements of
accompanying technical document.
9.4.2 Dynamic load test run of each mechanism shall be carried out on the whole travel
route. Test load shall be 1.1 times of the rated lifting weight. Accumulative start and running
time of electric crane shall not be less than 1h and that of manual crane shall not be less than
10 min. Action of each mechanism shall be sensitive, stable and reliable. Action of safety
protection, interlocking device and limit switch shall be sensitive, accurate and reliable.
9.4.3 In cart running of portal bridge crane, loads shall be at the mid-span.
9.4.4 Under any operation condition of column cantilever crane, independent gyration of
cantilever and incontrollable operation of trolley shall not occur.
9.4.5 The mechanism and structure of unloaded crane shall be free from damage, permanent
deformation, connection looseness, weld failure and shrinkage. Hydraulic system and sealing
positions shall be free from leakage.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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