GB/T 22437.5-2021 (GB/T22437.5-2021, GBT 22437.5-2021, GBT22437.5-2021)
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| GB/T 22437.5-2021 | English | 564 |
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Cranes -- Design principles for loads and load combinations -- Part 5：Overhead travelling and portal bridge cranes
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GB/T 22437.5-2021
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| GB/T 22437.5-2008 | English | 125 |
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Cranes -- Design principles for loads and load combinations -- Part 5: Overhead traveling and portal bridge cranes
| Obsolete |
GB/T 22437.5-2008
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Standards related to: GB/T 22437.5-2021
| Standard ID | GB/T 22437.5-2021 (GB/T22437.5-2021) | | Description (Translated English) | Cranes -- Design principles for loads and load combinations -- Part 5��Overhead travelling and portal bridge cranes | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J80 | | Classification of International Standard | 53.020.20 | | Word Count Estimation | 30,350 | | Date of Issue | 2021-12-31 | | Date of Implementation | 2022-07-01 | | Older Standard (superseded by this standard) | GB/T 22437.5-2008 | | Quoted Standard | GB/T 6974.5-2008; GB/T 10183.1-2018; GB/T 20863.1-2021; GB/T 22437.1-2018; GB/T 30024-2020; ISO 4302-2016 | | Adopted Standard | ISO 8686-5-2017, IDT | | Drafting Organization | Taiyuan University of Science and Technology | | Administrative Organization | National Hoisting Machinery Standardization Technical Committee | | Regulation (derived from) | National Standard Announcement No. 17 of 2021 | | Proposing organization | China Machinery Industry Federation | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | | Summary | This standard specifies the application of GB/T 22437.1--2018 in bridge and gantry cranes as defined by ISO 4306-1, and specifies specific values ??for the coefficients used. |
GB/T 22437:5-2021
Cranes -- Design principles for loads and load combinations -- Part 5: Overhead travelling and portal bridge cranes
ICS 53:020:20
CCSJ80
National Standards of People's Republic of China
Replacing GB/T 22437:5-2008
Design principles for crane loads and load combinations
Part 5: Overhead and Gantry Cranes
(ISO 8686-5:2017, IDT)
Published on 2021-12-31
2022-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface I
Introduction III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Symbol 1
5 Load and applicable factor 3
5:1 Normal load 3
5:2 Accidental loads7
5:3 Special loads 11
5:4 Other loads 13
6 Applicable loads, load combinations and factors 13
7 Combinations of acceleration effects 17
Appendix A (Informative) Skewed Operating Loads: Assumptions for Simplified Calculations 19
Reference 25
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents"
drafted:
This document is part 5 of GB/T 22437 "Design Principles for Crane Loads and Load Combinations": GB/T 22437 has been issued
The following parts are distributed:
--- Part 1: General;
--- Part 2: Mobile cranes;
--- Part 3: Tower cranes;
--- Part 4: Jib cranes;
--- Part 5: Overhead and gantry cranes:
This document replaces GB/T 22437:5-2008 "Design principles for crane loads and load combinations - Part 5: Bridge and portal
Cranes", compared with GB/T 22437:5-2008, in addition to structural adjustment and editorial changes, the main technical changes are as follows:
--- Changed normative references (see Chapter 2, Chapter 2 of the:2008 edition);
--- Added some main symbols used in this document (see Table 1);
---Added the correction content of the lifting impact coefficient (ϕ1) acting on the mass of the crane reflecting the effect of the gravity load, giving a favorable
The specific value of the gravity load effect coefficient of mass and unfavorable mass (see 5:1:2);
--- Increase the determination principle and situation of the lifting dynamic load factor (ϕ2) (see 5:1:3:1);
---Added the calculation formula of theoretical dynamic load coefficient (ϕ2t) considering hoisting flexible parts (steel wire rope/chain), combined with GB/T 22437:1-
2018, determine the lifting dynamic load factor (ϕ2) by calculation (see 5:1:3:2);
--- Increased the calculation method of the load effect change caused by acceleration or deceleration (see 5:1:5);
---Increased according to the drive type of the large and small car running mechanism and the slewing mechanism, the typical backlash of the reduction box/open gear has a larger backlash, starting from
The drive type of the lifting mechanism, the lifting/lowering action is selected as ϕ5 (see Table 3);
--- Added the concept and value method of average acceleration times level, positioning motion effect coefficient (ϕp) (see 5:1:6);
--- Added the calculation method of deflection angle (see 5:2:2:2);
--- Added the calculation method of friction slip coefficient (see 5:2:2:3);
--- Added the calculation method for the deflection lateral force of bridge and gantry cranes based on four calculation models to select rigid/flexible (see 5:2:2:4);
--- Added the calculation method for the deflection lateral force of suspended cranes (see 5:2:2:5);
--- Added "loads caused by accidental failure of mechanisms or components" load combination under positive/abnormal loading (see 5:3:5);
---Increased the force limit of the "lifting force limiter dynamically cuts off the load caused by the lifting motion" of the direct/indirect acting lifting force limiter
The value of the coefficient and the calculation method of the maximum load (see 5:3:6);
--- Added three sets of load combinations: C9 "Load due to dynamic cut-off of lift limiter", C10 "Load due to loss of effective load"
"Load", C11 "Loads due to installation, disassembly and transportation" (see Table 9);
--- Changed the sub-item safety factor value of the load combination table (see Table 9, Table 1 of the:2008 edition);
--- Changed the "sub-item load factor" in the load combination table to "sub-item safety factor" (see Table 9, Table 1 of the:2008 edition);
--- Increased the dynamic effect coefficient (ϕ9) caused by the loss of payload (see Table 9);
--- Added Appendix A "Deviated Operating Load: Assumptions of Simplified Calculation Method" (see Appendix A):
This document is equivalent to ISO 8686-5:2017 "Design principles for crane loads and load combinations - Part 5: Bridge and portal
crane":
Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed by China Machinery Industry Federation:
This document is under the jurisdiction of the National Standardization Technical Committee of Hoisting Machinery (SAC/TC227):
This document is drafted by: Taiyuan University of Science and Technology, Beijing Hoisting and Transportation Machinery Design and Research Institute Co:, Ltd:, Henan Weihua Heavy Machinery Co:, Ltd:
Co:, Ltd:, Beijing Hoisting and Transportation Machinery Design and Research Institute Co:, Ltd: Henan Branch, Zhejiang Guanlin Machinery Co:, Ltd:, Beijing Kezhengping Project
Technology Testing Research Institute Co:, Ltd:, Henan Mining Crane Co:, Ltd:, Weite Technology Co:, Ltd:, Qingdao Huangdao District Market Supervision and Administration
Management Comprehensive Security Center, Frantech Heavy Industry Co:, Ltd:, Henan Dafang Heavy Machinery Co:, Ltd:, Qingdao Haixi Heavy Machinery Co:, Ltd:
company:
The main drafters of this document: Xu Gening, Zhang Pei, Dong Qing, Qi Qisong, Lin Fukui, Liu Yonggang, Wang Yujin, Yang Weibo, Cui Hongzhe, Qu Peng,
Yang Zhaorong, Yuan Xiufeng, Teng Yun, Guo Hongbo, Luo Zhenli:
This document was first published in:2008 and this is the first revision:
introduction
GB/T 22437 "Design Principles for Crane Loads and Load Combinations" is the input of the crane design load and is the
The principle basis for calculating and experimentally verifying the bearing capacity of crane mechanisms, parts and metal structures, aiming to unify the load and load of domestic cranes
The design principle of the combination consists of five parts:
--- Part 1: General: The purpose is to specify general methods for the calculation of various loads and general principles for selecting load combinations:
--- Part 2: Mobile cranes: The purpose is to specify the design principles for the loads and load combinations of mobile cranes:
--- Part 3: Tower cranes: The purpose is to specify the application of the design principles of loads and load combinations in tower cranes:
--- Part 4: Jib cranes: The purpose is to specify the application of general design principles to jib cranes:
--- Part 5: Overhead and gantry cranes: Design principles aimed at specifying loads and load combinations in bridge and gantry cranes
application in the machine:
Design principles for crane loads and load combinations
Part 5: Overhead and Gantry Cranes
1 Scope
This document specifies the application of GB/T 22437:1-2018 in bridge and gantry cranes as defined by ISO 4306-1, and is applicable to
The coefficients used give specific values:
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document:
GB/T 6974:5-2008 Crane Terminology Part 5: Overhead and Gantry Cranes (ISO 4306-5:2005, IDT)
GB/T 10183:1-2018 Tolerances for crane wheels and carts and trolley tracks - Part 1: General (ISO 12488-1:
2012, IDT)
GB/T 20863:1-2021 Crane Classification Part 1: General (ISO 4301-1:2016, IDT)
GB/T 22437:1-2018 Design principles for crane loads and load combinations - Part 1: General (ISO 8686-1:2012,
IDT)
GB/T 30024-2020 Competency Verification of Crane Metal Structures (ISO 20332:2016, IDT)
ISO 4302:2016 Cranes-Windloadassessment
3 Terms and Definitions
Terms and definitions defined in GB/T 6974:5-2008 and GB/T 22437:1-2018 apply to this document:
4 symbols
The following symbols apply to this document:
Table 1 Symbols
Symbol meaning
a Acceleration or deceleration value
a Additional term used to determine the value of ϕ1
bj along the running direction of the crane, the distance from the wheel j to the central axis xb
CH Elastic modulus of crane structures and hoisting wire rope systems at load suspension points
dj is the distance from the front guide to the wheel j along the running direction of the crane
e The base of the natural logarithm, which is 2:718
......
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