Frames with Intentionally Eccentric W-Shape, C-Shape, and Round HSS Braces
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| Autore: | |
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| Natura: | artículo original |
| Status: | Versión publicada |
| Data di pubblicazione: | 2025 |
| Descrizione: | Steel Frames with Intentionally Eccentric Braces (FIEBs) are an innovative Seismic Force-ResistingSystem (SFRS) that offers significant advantages compared to Concentrically Braced Frames (CBFs).Recent research has shown that the adjustable stiffness and strength of Braces with IntentionalEccentricity (BIEs) with square Hollow Structural Section (HSS) bracing members allows for a bettercontrol over the structure’s dynamic response and for a reduction of the capacity-based design forces onthe non-energy-dissipating members.In this article, the aptness of W-shapes, C-shapes, and round HSSs to be employed as bracingmembers in multi-story FIEBs is evaluated preliminarily. To this end, hypothetical buildings with FIEBsbased on the three section types as their SFRS are designed using a displacement-based procedure forthe seismic hazard of locations in Costa Rica, and their performance is assessed numerically with Non-Linear Response History Analysis (NLRHA).The results show that the three section types produce FIEBs that display a satisfactory seismicresponse in terms of maximum story drifts and story shears, and that the use of W-shape BIEs results inthe most cost-effective designs. |
| Stato: | Portal de Revistas UCR |
| Istituzione: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Lingua: | Español |
| OAI Identifier: | oai:portal.revistas.ucr.ac.cr:article/379 |
| Accesso online: | https://revistas.ucr.ac.cr/index.php/ringenieria/article/view/379 |
| Keyword: | Braces with Intentional Eccentricity (BIEs) earthquake-resistant design Frames with Intentionally Eccentric Braces (FIEBs) Non- Linear Response History Analysis (NLRHA) steel braced frames Análisis no lineal dinámico diseño sismorresistente marcos arriostrados de acero marcos con riostras intencionalmente excéntricas riostras intencionalmente excéntricas |