Experimental study of post-fire performance of high-strength bolts under combined tension and shear

PurposeThis study aims to verify whether the reduction factors for the post-fire performance of Grade 10.9 bolts stated in an earlier study at the TU Darmstadt are also valid for shear and combined tension and shear.Design/methodology/approachTests on Grade 10.9 bolt sets under combined tension and...

Full description

Saved in:
Bibliographic Details
Published in:Journal of structural fire engineering 2016-01, Vol.7 (1), p.58-68
Main Authors: Kawohl, Anne, Lange, Jörg
Format: Article
Language:English
Subjects:
Bearing capacity
Fixtures
High strength bolts
Load
Material properties
Reduction
Repair & maintenance
Shear
Shear tests
Structural steels
Tension tests
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:PurposeThis study aims to verify whether the reduction factors for the post-fire performance of Grade 10.9 bolts stated in an earlier study at the TU Darmstadt are also valid for shear and combined tension and shear.Design/methodology/approachTests on Grade 10.9 bolt sets under combined tension and shear were carried out. The tested bolts were heated and cooled without being stressed by an additional mechanical load before being tested.FindingsThe test results show that the reduction factors can also be adopted for bolts under combined tension and shear, but the tension-shear-ratio has an influence on the load bearing capacity.Originality/valueThe post-fire performance of high-strength bolts is of special interest when a building structure is evaluated after an event of fire. In contrast to conventional structural steel, high-strength bolts do not recover their original strength and material properties.
ISSN:2040-2317
2040-2325
DOI:10.1108/JSFE-03-2016-005