Behavior factor of concrete portal frames with dissipative devices based on carbon-wrapped steel tubes
| Autor: | Claudio Mazzotti, Andrea Vittorio Pollini, Nicola Buratti |
|---|---|
| Přispěvatelé: | Pollini A.V., Buratti N., Mazzotti C. |
| Rok vydání: | 2020 |
| Předmět: |
Computer science
Connection (vector bundle) 0211 other engineering and technologies chemistry.chemical_element 020101 civil engineering 02 engineering and technology 0201 civil engineering Seismic retrofitting Factor (programming language) Friction connection Civil and Structural Engineering computer.programming_language Precast RC building 021110 strategic defence & security studies business.industry Building and Construction Structural engineering Dissipative device Geotechnical Engineering and Engineering Geology Nonlinear system Geophysics chemistry Behavior factor Dissipative system Seismic retrofit business computer Carbon |
| Zdroj: | Bulletin of Earthquake Engineering. 19:553-578 |
| ISSN: | 1573-1456 1570-761X |
| DOI: | 10.1007/s10518-020-00977-y |
| Popis: | The key element characterizing the seismic vulnerability of existing prefabricated RC structures, not designed for earthquake actions, are friction-based connections between structural members; mainly those between beams and columns and beams and roofing beams. The paper discusses the effectiveness of dissipative connectors made of carbon wrapped steel tubes. In particular, it presents the results of Incremental Dynamic Analyses on portal frames, aimed at evaluating behavior factor values to be used in design. A simplified formula for estimating the behavior factor is also proposed. Results of nonlinear IDAs suggest that the introduction of these dissipative devices in friction-based beam-column joints provides an effective connection between structural members and, in addition, reduces the forces transmitted to columns, improving the seismic behavior of the entire structure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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