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GB/T 41680-2022 English PDF

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GB/T 41680-2022: Cranes - Principles for seismically resistant design
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Basic data

Standard ID GB/T 41680-2022 (GB/T41680-2022)
Description (Translated English) Cranes - Principles for seismically resistant design
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J80
Classification of International Standard 53.020.20
Word Count Estimation 22,254
Date of Issue 2022-10-14
Date of Implementation 2022-10-12
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 41680-2022: Cranes - Principles for seismically resistant design

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Cranes -- Principles for seismically resistant design ICS 53.020.20 CCSJ80 National Standards of People's Republic of China General rules for seismic design of cranes (ISO 11031.2016, MOD) Published on 2022-10-12 2022-10-12 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions, Symbols 1 4 Seismic design method 2 5 Seismic design using seismic coefficient correction method 3 5.1 General 3 5.2 Calculation of horizontal seismic design factor (KH) 3 5.3 Calculation of vertical seismic design factor (KV) 7 5.4 Calculation of seismic design loads 7 6 Seismic Design Based on Maximum Response Spectrum Method 8 6.1 General 8 6.2 Calculation process of total seismic response (TSR) 9 7 Combinations of seismic and non-seismic actions 9 7.1 General 9 7.2 Verification of static strength. load combinations in accordance with ISO 8686-1 9 7.3 Static Strength Verification. Load Combinations Based on the SRSS Method 10 7.4 Overall Stability Verification 10 7.5 Competency Verification of Crane Structure 11 Appendix A (Informative) Seismic Design Flow Chart 12 Appendix B (Informative) Information on Maximum Response Spectroscopy 13 Appendix C (Informative) Comparison of Time History Analysis Method and Different Seismic Design Methods 15 Appendix D (Informative) Relationship between Basic Acceleration and the McLaren and Richter Scales 17 Appendix E (Informative) Vertical Seismic Intensity 18 Reference 19

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 revised and adopted ISO 11031.2016 "General Principles for Seismic Design of Cranes". This document has the following structural adjustments compared to ISO 11031.2016. --- Added the chapter "Terms and Definitions, Symbols", and adjusted the original Chapter 3 "Symbols" to 3.2; ---Appendix B~Appendix E correspond to Appendix C~Appendix F in ISO 11031.2016. The following editorial changes have been made to this document. --- Adjust the ISO 4301-1 and ISO 4306 (all parts) of the informative references to the references; --- According to GB/T 1.1-2020, the reference to Appendix B is added to Chapter 4, and the reference to Appendix D is added to 5.2.1; --- According to 5.2.1 of ISO 20332.2016, the value of the general resistance coefficient (γm) in 7.5 is changed from 1.0 to 1.1; --- Deleted Annex B (informative) in ISO 11031.2016. 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., Beijing Hoisting and Transportation Machinery Design Research Institute Co., Ltd. Henan Branch, Beijing Kezhengping Engineering Technology Testing Research Institute Co., Ltd., Taiyuan Heavy Industry Co., Ltd., Henan Weiwei Huazhong Machinery 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., Xinxiang City Lifting Equipment Factory Co., Ltd., Qingdao Haixi Heavy Machinery Co., Ltd. Ren Company, Ningxia Tiandi Benniu Yinqi Equipment Co., Ltd., and Jiangxi Hoisting Machinery General Factory Co., Ltd. The main drafters of this document. Yang Mingliang, Lin Fukui, Han Jing, Zhang Pei, Han Gang, Li Jun, Nie Fuquan, Li Yongliang, Zheng Pei, Shi Changping, Yang Zhaorong, Yuan Xiufeng, Li Xiang, Yang Gang, Yao Tianfu, Zhu Ying. General rules for seismic design of cranes

1 Scope

This document specifies a general method for the seismic design of cranes, applicable to the calculation of seismic loads as defined in ISO 8686 (all parts), Proficiency testing of metal structures as defined by ISO 20332 and calculations of mechanical components and structures as defined by ISO 4306 (all parts). This document evaluates the dynamic response behavior of cranes subjected to seismic excitation - a function of the crane's dynamic characteristics and its supporting structure. Book The evaluation takes into account not only the dynamic effects of the crane working on the ground under regional and local conditions, but also the working state of the crane and earthquake hazards to cranes. This document applies only to service limit states (SLS) where the stress is within the elastic range specified in ISO 20332. This document does not apply to proficiency testing including plastic deformation. If permitted by an agreement between the crane supplier and the user, refer to Check other relevant standards or literature.

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. andloadcombinations) Note. GB/T 22437 (all parts) Design principles for crane loads and load combinations [ISO 8686 (all parts)] Note. GB/T 30024-2020 Competency Verification of Crane Metal Structures (ISO 20332.2016, IDT) 3 Terms and definitions, symbols 3.1 Terms and Definitions There are no terms and definitions that need to be defined in this document. 3.2 Symbols The following symbols apply to this document. The main symbols are shown in Table 1. Table 1 Main symbols Symbol meaning Abg normalized base acceleration Asg normalized ground acceleration c Vertical influence factor FH Horizontal Seismic Design Force

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