Steel Beam-to-Column RBS Connections: FEM Analysis under Cyclic Loading
| Autor: | D. S. Sophianopoulos, Agoritsa E. Deri |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
business.industry
Computer science Experimental data 02 engineering and technology Structural engineering 021001 nanoscience & nanotechnology 01 natural sciences Displacement (vector) Finite element method Steel design Seismic analysis 0103 physical sciences Calibration 0210 nano-technology business 010303 astronomy & astrophysics Beam (structure) Verification and validation |
| Zdroj: | World Journal of Mechanics. :17-28 |
| ISSN: | 2160-0503 2160-049X |
| DOI: | 10.4236/wjm.2019.92002 |
| Popis: | In a companion paper [1], an optimization scheme for extended-end-plate Reduced Beam Section (RBS) connections of steel-moment-frames was presented, based on the component method of Eurocode 3, on regression analysis and on principles of Mechanics under monotone loading. European beam and column profiles were utilized, in conjunction with geometric restrictions and constraints of North American and European Standards for prequalified radius-cut RBS. Τhe aforementioned method aimed for an excellent seismic performance, the verification and validation of which is the content of the present study. Using FEM modeling and accounting for the assumptions used in the optimum design, after calibration with existing experimental data, the optimum connections were numerically analyzed under cyclic loading, adopting a well-accepted displacement-based protocol. All optimum solutions exhibited an excellent cyclic response, and met very satisfactorily all the performance criteria for seismic design. Results in terms of hysteretic M-φ curves at three characteristic areas of the connections validate the whole analysis, a fact aiming to assist in incorporation the radius-cut RBS concept in European Steel Design Codes and engineering practice. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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