Seismic Design and Performance of Steel Moment-Resisting Frames with Nonlinear Replaceable Links
| Autor: | Constantin Christopoulos, Robert Tremblay, Yunlu Shen, Nabil Mansour |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Engineering
business.industry Mechanical Engineering Stiffness Building and Construction Structural engineering Finite element method Seismic analysis Moment (mathematics) Nonlinear system Flexural strength Mechanics of Materials Steel frame medicine General Materials Science medicine.symptom business Ductility Civil and Structural Engineering |
| Zdroj: | Journal of Structural Engineering. 137:1107-1117 |
| ISSN: | 1943-541X 0733-9445 |
| DOI: | 10.1061/(asce)st.1943-541x.0000359 |
| Popis: | Although moment resisting frames (MRFs) designed according to the latest seismic codes can provide life safety during a design level earthquake, they are expected to sustain significant damage at flexural yielding locations in the beams. The design of the beams for strength and drift control considerations are also interlinked, often resulting in overdesign of other elements, such as diaphragms and foundations. These drawbacks can be mitigated by introducing replaceable links at the locations of expected inelastic action. A five-story prototype MRF building with replaceable links in a high-seismic zone was designed. Four full-scale beam-to-column subassemblages representing the first floor exterior connections in the prototype building were experimentally evaluated. The results demonstrated that MRFs with replaceable flexural links can provide strength and ductility equivalent to existing MRFs while minimizing the effect of the added links on the elastic stiffness of the system. Finite-element models were... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|