GB/T 37789-2019Test methods for cruciform joints of steel structures (English PDF)
钢结构十字接头试验方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
August 30, 2019
Implementation date
July 1, 2020
Scope
GB/T 37789-2019 is the English-translated version of 钢结构十字接头试验方法.
GB/T 37789-2019 sets out the test methods for cruciform joints of steel structures, which its draft text calls steel structure cross joints.
Clause 1 says the standard specifies the terms and definitions, the symbols, the test pieces and their preparation, the tensile test, the impact test, the hardness test, the macroscopic acid corrosion test, the result evaluation and retest, and the test report.
The same clause states that it applies to steel structure cross joint tests on joints made with a right angle fillet weld or a combination weld for engineering construction, and that the testing of near straight cross joints of steel structures may use it as a reference.
Clause 2 cites GB/T 226, GB/T 228.1, GB/T 229, GB/T 2650, GB/T 2651, GB/T 2654, GB/T 2975, GB/T 4340.1, GB 50205 and GB 50661.
Clause 3 defines four terms, namely the cross joint, which is three pieces assembled into a cross shaped joint, the right angle fillet weld, formed along the intersection line of a member that intersects at two right angles and without a bevel, the butt weld, welded between the bevel faces of the weldment or between the bevel face of one part and the surface of the other, and the combined weld, which consists of butt welds and right angle fillet welds.
The draft on the page breaks off at the end of clause 3, so the test clauses themselves are not shown. The standard was proposed by the China Iron and Steel Association and is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183). It was issued on August 30, 2019 and has applied since July 1, 2020.
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Document preview — GB/T 37789-2019
National Standard of the People's Republic of China
- ICS
- 77.040.99
- Classification
- H 20
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
1 Scope
This standard specifies the terms and definitions of steel structure cross joint test, symbols, test pieces, test piece preparation, tensile test, impact test, hardness Test, macroscopic acid corrosion test, result evaluation and retest and test report.
This standard is applicable to steel structure cross joint test using right angle fillet weld or combination weld joint for engineering construction. Steel structure near straight cross The joint test can be used as reference.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 226 Low-magnification structure and defect acid etching test method for steel
GB/T 228.1 tensile testing of metallic materials - Part 1
GB/T 229 metal material Charpy pendulum impact test method
GB/T 2650 welded joint impact test method
GB/T 2651 welded joint tensile test method
GB/T 2654 welded joint hardness test method
GB/T 2975 steel and steel products mechanical properties test sampling position and sample preparation
GB/T 4340.1 Metallic materials - Vickers hardness test - Part 1: Test method
GB 50205 Steel Structure Engineering Construction Quality Acceptance Specification
GB 50661 Steel Structure Welding Specification
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Cross connector
The three pieces are assembled into a "cross" shaped joint.
3.2 Right angle fillet
A member that intersects at two right angles, and a fillet weld that is formed along its intersection line without a bevel.
3.3 Butt weld
A weld welded between the bevel faces of the weldment or between the bevel face of one part and the surface of the other part.
3.4 Combined weld
A weld consisting of butt welds and right angle fillet welds.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 228.1Metallic Materials — Tensile Testing — Part 1: Method of Test at Room Temperature
- GB/T 229Metallic Materials — Charpy Pendulum Impact Test Method
- GB/T 2650Destructive tests on welds in metallic materials - Impact tests
- GB/T 2651Destructive tests on welds in metallic materials - Transverse tensile test
- GB/T 2654Hardness test methods on welded joints
- GB/T 2975Steel and steel products - Location and preparation of samples and test pieces for mechanical testing
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Related Standards
GB 50205-2020 — Standard for acceptance of construction quality of steel structures
GB 50661-2011 — Code for Welding of Steel Structures
GB/T 228.1-2021 — Metallic Materials — Tensile Testing — Part 1: Method of Test at Room Temperature
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