Introduction
Bimonthly, started in 1957
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
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Establishment of Constant Amplitude Fatigue Design Method for M24 High Strength Bolts in Fabricated
DOI:
10.16355/j.cnki.issn1007-9432tyut.2020.05.017
Received:
Accepted:
| Corresponding author | Institute | |
| LEI Honggang | Collage of Civil Engineering, Taiyuan University of Technology |
abstract:
M24 high strength bolts are one of the most widely used bolt specifications in fabricated steel structure buildings. With the help of the MTS Landmark 370.50 servo hydraulic fatigue testing machine imported from the United States, three static tensile tests and 14 constant amplitude fatigue tests were carried out for 20 MnTiB, 10.9 grade and M24 high strength large hexagonal head bolts. The characteristics and mechanism of fatigue failure were revealed by fracture analysis, the corresponding fatigue curves were obtained, and the design method of constant amplitude fatigue was established. It is suggested that the connection structure be classified as Z5 in Table 16.2.1-1 of the Design Standards for Steel Structures(GB 50017-2017).
Keywords:
fabricated steel structure building; M24 high strength bolt; fatigue test; fatigue failure mechanism; constant amplitude fatigue design method;