GB/T 11981-2024 Steel furring for building
1 Scope
This document specifies the classification and marking, raw materials, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of steel furring for building.
This document is applicable to steel furring for building of non-load-bearing walls and ceilings with lightweight boards such as gypsum plasterboard, decorating gypsum board and mineral wool decorating and acoustic ceilings.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 1839 Test method for gravimetric determination of the mass per unit area of galvanized coatings on steel products
GB/T 2518 Continuously hot-dip zinc and zinc alloy coated steel sheet and strip
GB/T 6739 Paints and varnishes - Determination of film hardness by pencil test
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 9775 Gypsum plasterboard
GB/T 10125 Corrosion tests in artificial atmospheres - Salt spray tests
GB/T 12754 Prepainted steel sheet and strip
JC/T 558 Accessory of steel furring for building
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
steel furring for building
thin-walled steel produced by roll forming process using continuously hot-dip zinc steel sheet (strip) as raw material or using prepainted steel sheet (strip) as raw material while the continuously hot-dip zinc steel sheet (strip) as base material
Note: It is referred to as "furring" for short.
3.2
wall furring
steel furring for wall framework
Note: See Figure 1.
Key:
1——top and floor furring;
2——through furring;
3——erect furring;
4——bracing clip.
Figure 1 Schematic diagram of wall furring
3.3
top and floor furring
connecting member of wall framework and building structure
3.4
erect furring
main stress-bearing components in the wall framework
3.5
through furring
intermediate connecting member of the erect furring in the wall framework
3.6
bracing clip
fittings that play a supporting role when the cladding sheet is fixed to the furring
3.7
ceiling furring
steel furring for ceiling
Note: See Figures 2, 3 and 4.
4 Classification and marking
4.1 Classification, codes and specifications
The furring is divided into three categories: wall furring, ceiling furring and straight-clip ceiling furring according to the installation methoddivided into C-type, CH-type, F-type, L-type, T-type, U-type and V-type according to the section type. The classification and specifications of common furring products are shown in Table 1. Other specifications and dimensions may be determined through negotiation between the supplier and the purchaser, and the relevant technical indicators shall meet the requirements of products with similar specifications.
Contents
Foreword ii
Introduction iii
1 Scope
2 Normative References
3 Terms and Definitions
3 Dimensions
4 Marking
5 Technical Conditions
6 Mass of Riveted Nuts
Annex A (Informative) Mass of Flat Head Riveted Nuts
Bibliography
