Steel Moment Resisting Frames with Hybrid Nonlinear Behavior
Event details
| Date | 07.09.2016 |
| Hour | 16:00 › 17:00 |
| Speaker | Prof. Kiarash Dolatshahi, Sharif University, Visiting Prof. at EPFL |
| Location |
GC C2 413
|
| Category | Conferences - Seminars |
Abstract: Moment resisting frames must comply with a minimum beam span-to-depth ratio recommended by codes to ensure formation of plastic hinges at beam ends with adequate length. This limitation is at odds with the need for shorter spans in order to control lateral drifts. The requirement also limits the application of moment resisting frames mostly in framed-tube structures. To ease the limitation, this presentation proposes a shear fuse at the beam mid-span, comprising a replaceable beam with a smaller cross-section than that of the main beam. The shear fuse dissipates energy by shear yielding and thus, prevents or delays the flexural yielding of beam ends. The system can also be used for the purpose of rehabilitation of existing moment resisting frames that have been already damaged, by weakening some portion of the beam. The presentation comprises the background theory, results of the tests, and application and optimization of the proposed system in buildings.
Bio:Kiarash M. Dolatshahi is Assistant Professor in the Civil Engineering Department at Sharif University of Technology since 2012. He has received his Ph.D. from State University of New York at Buffalo in 2012. The topic of his Ph.D. dissertation is “Computational, Analytical and Experimental Modeling of Masonry Structures”. His research focuses on earthquake resistant design of steel structures and modeling of masonry structures.
Practical information
- General public
- Free
Organizer
- Prof. Katrin Beyer (EESD)
Contact
- Prof. Katrin Beyer (EESD)