Practitioner-friendly design method to improve the seismic performance of RC frame buildings
| Autor: | Abbie B. Liel, Sergio Gutiérrez, Orlando Arroyo |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
021110 strategic
defence & security studies business.industry Computer science Frame (networking) Structural system 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Structural engineering Geotechnical Engineering and Engineering Geology Reinforced concrete 0201 civil engineering Geophysics Code (cryptography) business |
| Zdroj: | Earthquake Spectra. 37:2247-2266 |
| ISSN: | 1944-8201 8755-2930 |
| Popis: | Reinforced concrete (RC) frame buildings are a widely used structural system around the world. These buildings are customarily designed through standard code-based procedures, which are well-suited to the workflow of design offices. However, these procedures typically do not aim for or achieve seismic performance higher than code minimum objectives. This article proposes a practical design method that improves the seismic performance of bare RC frame buildings, using only information available from elastic structural analysis conducted in standard code-based design. Four buildings were designed using the proposed method and the prescriptive approach of design codes, and their seismic performance is evaluated using three-dimensional nonlinear (fiber) models. The findings show that the seismic performance is improved with the proposed method, with reductions in the collapse fragility, higher deformation capacity, and greater overstrength. Furthermore, an economic analysis for a six-story building shows that these improvements come with only a 2% increase in the material bill, suggesting that the proposed method is compatible with current project budgets as well as design workflow. The authors also provide mathematical justification of the method. |
| Databáze: | OpenAIRE |
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