GB/T 44534-2024Technical requirement for spherical node of space grid structures (English PDF)

1 Scope

This document provides the classification, marking and specifications of spherical nodes of space grid structures, and stipulates the requirements, inspection rules, marking, packaging, transportation and storage, and the corresponding test methods are described.

This document is applicable to the quality control of bolted sphere nodes and welded hollow sphere nodes of spatial grid structures.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to

This document.

GB/T 196 Basic dimensions of common threads

GB/T 197 General thread tolerances

GB/T 223.5 Determination of acid-soluble silicon and total silicon content of iron and steel - Reduced molybdenum silico-silicic acid spectrophotometric method

GB/T 223.11 Determination of chromium content in steel and alloys Visual titration or potentiometric titration method

GB/T 223.19 Methods for chemical analysis of iron, steel and alloys - Determination of copper content by the new cuproline-chloroform extraction spectrophotometric method

GB/T 223.23 Determination of nickel content in steel and alloys - Dimethylglyoxime spectrophotometric method

GB/T 223.59 Determination of phosphorus content in iron, steel and alloys - Bismuth phosphomolybdenum blue spectrophotometric method and antimony phosphomolybdenum blue spectrophotometric method

GB/T 223.63 Determination of manganese content in iron, steel and alloys - Sodium (potassium) periodate spectrophotometric method

GB/T 223.79 Determination of multi-element content of steel - X-ray fluorescence spectrometry (conventional method)

GB/T 223.81 Determination of total aluminum and total boron content of steel and alloys - Microwave digestion-inductively coupled plasma mass spectrometry

GB/T 223.85 Determination of sulfur content in iron, steel and alloys - Infrared absorption method after combustion in an induction furnace

GB/T 223.86 Determination of total carbon content of steel and alloys - Infrared absorption method after combustion in an induction furnace

GB/T 228.1 Tensile test of metallic materials Part 1.Room temperature test method

GB/T 699 High-quality carbon structural steel

GB/T 700 Carbon structural steel

GB/T 1591 Low alloy high strength structural steel

GB/T 2975 Sampling location and specimen preparation for mechanical property tests of steel and steel products

GB/T 3077 Alloy structural steel

GB/T 3098.1 Mechanical properties of fasteners Bolts, screws and studs

GB/T 5117 Non-alloy steel and fine grain steel welding rods

GB/T 5118 Heat-resistant steel welding rods

GB/T 8110 Solid welding wire for non-alloy steel and fine grain steel for gas shielded arc welding

GB/T 8923.1 Surface preparation of steel before coating - Visual assessment of surface cleanliness - Part 1.Uncoated steel

Rust level and treatment level of steel surface after surface and complete removal of existing coatings

GB/T 9444 Magnetic Particle Testing of Steel and Iron Castings

GB/T 10045 Flux-cored welding wire for non-alloy steel and fine grain steel

GB/T 11374 Non-destructive measurement method for thermal spray coating thickness […]