GB/T 22437.5-2021 (GB/T 22437.5-2008) PDF EnglishUS$125.00 · In stock · Download in 9 seconds
GB/T 22437.5-2008: Cranes -- Design principles for loads and load combinations -- Part 5: Overhead traveling and portal bridge cranes Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Obsolete GB/T 22437.5: Historical versions
Similar standardsGB/T 22437.5-2008: Cranes -- Design principles for loads and load combinations -- Part 5: Overhead traveling and portal bridge 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/GBT22437.5-2008 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 53.020.20 J 80 Cranes - Design principles for loads and load combinations - Part 5.Overhead travelling and portal bridge cranes (ISO 8686-5.1992, MOD) Issued on: OCTOBER 22, 2008 Implemented on: MAY 01, 2009 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the PRC; Standardization Administration of the PRC. Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Terms and definitions... 5 4 Symbols... 6 5 Application of ϕi factors... 6 6 Hoisting classes... 9 7 Combination of acceleration effects... 10ForewordGB/T 22437 "Cranes - Design principles for loads and load combinations" is divided into the following 5 parts. - Part 1.General; - Part 2.Mobile cranes; - Part 3.Tower cranes; - Part 4.Jib cranes; - Part 5.Overhead travelling and portal bridge cranes. This Part is Part 5 of GB/T 22437. This Part modifies and adopts ISO 8686-5.1992 "Cranes - Design principles for loads and load combinations - Part 5.Overhead travelling and portal bridge cranes" (English edition). This Part is redrafted in accordance with ISO 8686-5.1992.The relevant technical differences have been incorporated into the text; and, marked with a vertical single line in the margins of the clauses they involve. The main technical differences between this Part and ISO 8686-5.1992 are. - CHANGE the "—" in the 2nd line of the combinations A3 and B3 in Table 1 Loads and load combinations TO "1"; - CHANGE the previous "—" in the 7th line of the combinations C3 in Table 1 Loads and load combinations TO "1"; - EXCHANGE the position of "—" in the 4th line and "ϕ5" in the 5th line of the combinations A4 and B4 in Table 1 Loads and load combinations; CHANGE to "ϕ5" in the 4th line and "—" in the 5th line; - CHANGE the γmA, γmB, and γmC in the 20th line in Table 1 Loads and load combinations TO γm; CHANGE the value of γm from 1.10, 1.05, and 1.00 to 1.10; - Modify the change of γpi caused by the conversion of γmi to γm in Table 1 Loads and load combinations; - GIVE the specific numerical value of the coefficient for high-risk. For ease of use, this Part has also made the following editorial changes. Cranes - Design principles for loads and load combinations - Part 5.Overhead travelling and portal bridge cranes1 ScopeThis Part of GB/T 22437 establishes the application of GB/T 22437.1 to overhead travelling and portal bridge cranes as defined in GB/T 6974.1, and gives specific values for the factors to be used.2 Normative referencesThe following documents contain provisions which, through reference in this Part of GB/T 22437, constitute provisions of this Part. For the dated references, their subsequent amendments (excluding corrections) or revisions do not apply to this Part. However, the parties who enter into agreement based on this Part are encouraged to investigate whether the latest editions of these documents are applicable. For undated reference documents, the latest editions apply to this Part. GB/T 5905-1986 Cranes - Test code and procedures (idt ISO 4310.1981) GB/T 6974.1 Crane - Vocabulary - Part 1.General (GB/T 6974.1-2008, ISO 4306-1.2007, IDT) GB/T 10183 Cranes - Overhead travelling cranes and portal bridge cranes - Tolerances for cranes manufacture and tracks laying (GB/T 10183-2005, ISO 8306.1985, IDT) GB/T 22437.1-2008 Cranes - Design principles for loads and load combinations - Part 1.General (ISO 8686-1.1989, MOD) ISO 4302 Cranes - Wind load assessment3 Terms and definitionsThe terms and definitions established in GB/T 22437.1-2008 apply to this Part of GB/T 22437.4 SymbolsThe symbols used in this Part are in accordance with the provisions in GB/T 22437.1-2008.5 Application of ϕi factors5.1 The ϕi factors for dynamic effects which are used for load combinations are given in Table 1. 5.2 The numerical values for different ϕi factors are given in Table 2. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. |
