Punching behavior of BubbleDeck type reinforced concrete slabs
| Autor: | Guilherme S. Melo, Joaquim A. O. Barros, Wanderley Gustavo Nicácio |
|---|---|
| Přispěvatelé: | Universidade do Minho |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Engineering
Finite element method Science & Technology business.industry Reinforced concrete flat slabs Material nonlinear analysis 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Building and Construction Structural engineering Reinforced concrete BubbleDeck type slabs 0201 civil engineering Mechanics of Materials Engenharia e Tecnologia::Engenharia Civil 021105 building & construction Engenharia Civil [Engenharia e Tecnologia] General Materials Science business Punching Civil and Structural Engineering |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| Popis: | The BubbleDeck type slab (BD) is a reinforced concrete (RC) flat slab that includes recycled plastic hollow spheres (RPHS) in its core for decreasing its dead weight. However, punching capacity of BD slabs can be a critical aspect, thereby this work is devoted to assess experimentally its punching behavior. An experimental program composed of four real scale prototypes, representative of RC flat slabs in punching loading conditions, was carried out. Two of these slabs are of BD type, while the other two do not include the RPHS system, herein denominated as RC solid slab (SS). The test results show that all the tested slabs failed in punching after the occurrence of yield initiation of the flexural reinforcement. The punching capacity and the deflection at failure of BD type slab has decreased up to 14% and up to 44%, respectively, when compared to the corresponding SS type slab. A relatively small ductility index was obtained (between 1.51 and 2.65). In BD type slabs, the punching failure surface had tendency to propagate through the RPHS, at an inclination angle of about 45 CAPES, Grant/Award Number: PDSE program/Process number 88881.134825/2016-01; FCT, Grant/Award Number: project ICoSyTec POCI01-0145-FEDER-027990 |
| Databáze: | OpenAIRE |
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