Characterization tests for predicting the mechanical performance of SFRC floors: design considerations
| Autor: | Matteo Colombo, Sergio H.P. Cavalaro, Marco di Prisco, Paolo Martinelli, Pablo Pujadas, Albert de la Fuente |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental, Universitat Politècnica de Catalunya. Departament d'Enginyeria de Projectes i de la Construcció, Universitat Politècnica de Catalunya. EC - Enginyeria de la Construcció |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Floors
Concrete business.product_category Materials science 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology 0201 civil engineering Flexural strength 021105 building & construction Ultimate tensile strength Uniaxial tensile test (UTT) General Materials Science Indirect tensile tests Punching Joint (geology) SFRC floors Civil and Structural Engineering business.industry Double punching test (DPT) Terres (Construcció) -- Materials Enginyeria civil::Materials i estructures::Materials i estructures de formigó [Àrees temàtiques de la UPC] Building and Construction Structural engineering Construcció en formigó armat amb fibres d'acer Wedge (mechanical device) Fibre reinforced concrete (FRC) Characterization (materials science) Northern italy Elevated slabs Mechanics of Materials Solid mechanics Fiber-reinforced concrete business Double edge wedge splitting test (DEWST) |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Popis: | The paper presents an experimental program carried out to check the load bearing capacity of a steel fibre reinforced concrete (SFRC) floor in northern Italy. The extensive mechanical characterization focused on the suitability of 3 non-standardized test methods for quality control and tensile constitutive curve assessment was performed, this consisting of: uniaxial tensile test (UTT), double edge wedge splitting test (DEWST) and double punching test (DPT) to characterize the post-cracking mechanical properties of the material. The joint experimental programme, carried out at the Politecnico di Milano and at the Universitat Politècnica de Catalunya, included the flexural characterization of four shallow beams (1.5 × 0.5 × 0.25 m3) and six standard notched beams (0.55 × 0.15 × 0.15 m3). All the samples were produced from the same batch and with the same SFRC mix which was applied for the floor. After that, 192 cores were drilled from the shallow beams and subjected to either UTTs, DEWSTs or DPTs. The stress level, the scatter and the constitutive curves derived from the non-standardized tests were identified and analysed. The calculated constitutive curves were used to predict the behaviour of the shallow beams. |
| Databáze: | OpenAIRE |
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