Abstract
This paper presents investigation on cold-formed steel (CFS) beam-to-column
moment-resisting (MR) bolted connections with high energy dissipation capacity
suitable for seismic areas. Bolting friction-slip mechanism of the introduced CFS
MR connection is developed as its main seismic energy dissipation fuse aiming
to postpone or eliminate local buckling and yielding in the CFS MR connections.
Finite Element (FE) modelling techniques are employed to effectively simulate
the connections with an activated friction-slip mechanism. Hysteretic energy
dissipation response of the connections with circular bolting (CB) arrangement
designed to slip at 0.5Mp are presented. Based on the obtained FE results, fullscale physical tests on the CB connections have been performed under cyclic
loading. Both the FE and the test CB connections comprised double back-to-back segmental-flange beams of 2, 4 and 6mm thicknesses. The results show that the bolting friction-slip mechanism developed for the CB connections can effectively delay local buckling and yielding in the CFS beams of as thin as 2 mm
moment-resisting (MR) bolted connections with high energy dissipation capacity
suitable for seismic areas. Bolting friction-slip mechanism of the introduced CFS
MR connection is developed as its main seismic energy dissipation fuse aiming
to postpone or eliminate local buckling and yielding in the CFS MR connections.
Finite Element (FE) modelling techniques are employed to effectively simulate
the connections with an activated friction-slip mechanism. Hysteretic energy
dissipation response of the connections with circular bolting (CB) arrangement
designed to slip at 0.5Mp are presented. Based on the obtained FE results, fullscale physical tests on the CB connections have been performed under cyclic
loading. Both the FE and the test CB connections comprised double back-to-back segmental-flange beams of 2, 4 and 6mm thicknesses. The results show that the bolting friction-slip mechanism developed for the CB connections can effectively delay local buckling and yielding in the CFS beams of as thin as 2 mm
| Original language | English |
|---|---|
| Title of host publication | Wei-Wen Yu International Specialty Conference on Cold-Formed Steel Structures 2018 |
| Subtitle of host publication | Recent Research and Developments in Cold-Formed Steel Design and Construction (CCFSS 2018) |
| Editors | Roger A. LaBoube, Wei-Wen Yu |
| Publisher | Missouri University of Science and Technology |
| Pages | 389-395 |
| Number of pages | 7 |
| Publication status | Published - 2018 |
| Event | Wei-Wen YU International Specialty Conference : Cold-Formed Steel Structures - 2018 - St. Louis, Missouri, United States Duration: 7 Nov 2018 → 8 Nov 2018 |
Conference
| Conference | Wei-Wen YU International Specialty Conference |
|---|---|
| Country/Territory | United States |
| City | St. Louis, Missouri |
| Period | 7/11/18 → 8/11/18 |
Keywords
- Cold-formed steel
- Bolting friction-slip mechanism
- Seismic energy dissipation
- Moment-resisting connections