BS 8548:2017

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
4 Information required by the
   manufacturer - Project specification
5 Materials - Parent materials
6 Workmanship - Welding processes and joints
7 Welding procedure specification (WPS) and
   qualification testing
8 Welder qualification tests
9 Execution and inspection of welding of
   reinforcing steel bars
10 Quality management
Annexes
Annex A (informative) - Friction welding of steel
        components to reinforcement bar
Annex B (informative) - Welding coordinator
        competence
Annex C (informative) - Example of a Welding
        Procedure Specification (WPS)
Annex D (informative) - Welded test pieces
Annex E (normative) - Examination and testing
        of test specimens
Annex F (informative) - Guidance for the avoidance
        of hydrogen cracking in reinforcing steels and
        steel components joined to reinforcing steels
Bibliography

Provides guidance for the metal arc welding of reinforcing steel bars produced in accordance with BS 4449 and BS 4482 and welded in accordance with the requirements of BS EN ISO 17660-1 and BS EN ISO 17660-2.

This British Standard gives guidance for the metal arc welding of reinforcing steel bars produced in accordance with BS4449 and BS4482 and welded in accordance with the requirements of BSENISO17660‑1 and BSENISO17660‑2.

The welding of stainless reinforcing steels is not covered by this standard. This British Standard can be used by clients, specifiers, construction companies and fabricators of welded steel reinforcement as a means of agreeing the technical requirements of welded steel reinforcement.

This standard applies to the welding of load bearing joints (structural and semi-structural) and non-load bearing joints, including prefabricated assemblies, produced either in a factory, workshop or in a site environment. It also applies to the welding of reinforcing steels to other steel components such as connection devices, inserts, and anchors.

This standard gives recommendations on the information to be included in the Project Specification and also covers the materials of construction, methods for the approval of welding procedures and welding, workmanship, inspection, testing and acceptance requirements for the welded joints. It can be used for all types of reinforced concrete structures designed for static loading conditions.

The recommendations in this standard can be introduced into a construction contract by a Project Specification.

This standard does not apply to factory production of welding fabric and lattice girders using multiple spot welding machines. AnnexA addresses the requirements for the friction welding of steel products to reinforcement.

This standard gives general guidance on joints between reinforcing steels and other steel components. It only includes more detailed information on the most commonly used joints.