AD 274: Post-slip capacity of connections using preloaded bolts to BS 5950-1: 2000

The SCI continues to receive questions about preloaded bolts (HSFG bolts), particularly concerning the “capacity after slipping” addressed in clause 6.4.4 of BS 5950-1: 2000. This AD attempts to explain where “capacity after slipping” may be important and how it should be checked.

In order to retain the accurate formatting of the equations in this technical paper, this article is available as a pdf download only.

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