British Standards Institution

Source:: ISO
Committee:: CB/203 - Design & execution of steel structures
Categories:
Comment period start date:: 28/01/2025
Comment period end date:: 23/03/2025
Number of comments:: 0

Comment by:

23rd Mar

Scope

This document specifies a procedure to determine tightening procedures for pretensioned bolted connections to be used in structural steelwork.

The methods to establish bolt tightening procedures given in this standard are applicable to pretensioned bolted connections for which no approved tightening parameters exists in national or international standards. Such use cases apply for example if bolting assemblies have to be tightened by turning the head instead of the nut, if any of the conditions, given in a harmonized standard for pretensioning of bolting assemblies, are deviating or when stainless steel bolting assemblies are to be pretensioned. In these cases, tightening parameters as well as tightening procedures can be determined with the use of the Bolt Tightening Qualification Procedure (BTQP) given in this document.

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Standard timeline

1. Proposal (Complete)

Proposal start date:

2. Draft (Complete)

Draft start date:

25/11/2024

3. Public Comments

Public Comments start date:

28/01/2025

Public Comments end date:

23/03/2025

Learn more about the standards development process

Standards Development

BS ISO 18954 ISO 18954 Steel structures. Structural bolting. Test method to determine parameters of bolt tightening procedures

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