Redirigiendo al acceso original de articulo en 24 segundos...
Inicio  /  Buildings  /  Vol: 13 Par: 6 (2023)  /  Artículo
ARTÍCULO
TITULO

Experimental and Numerical Characterization of Non-Proprietary UHPFRC Beam?Parametric Analyses of Mechanical Properties

Younes Baghaei Osgouei    
Shahriar Tavousi Tafreshi and Masoud Pourbaba    

Resumen

Fabrication of ultra-high-performance concrete (UHPC) is costly, especially when commercial materials are used. Additionally, in contrast to conventional concrete, numerical procedures to simulate the behaviour of ultra-high-performance fibre-reinforced concrete (UHPFRC) are very limited. To contribute to the foregoing issues in this field, local materials were used in the fabrication process, while accounting for environmental issues and costs. Micro steel fibres (L" role="presentation">??L L : 13 mm, d" role="presentation">??d d : 0.16 mm, and ft:" role="presentation">????:ft: f t : 2600 MPa; L:" role="presentation">??:L: L : length, d" role="presentation">??d d : diameter, ft:" role="presentation">????:ft: f t : tensile strength) were used in 2% volumetric ratios. Compression and indirect tests were carried out on cylindrical and prismatic beams according to international standards. To further enrich the research and contribute to the limited simulation data on UHPFRC, and better comprehension of the parameters, numerical analyses were performed using the ATENA software. Finally, nonlinear regression analyses were employed to capture the deflection-flexural response of the beams. The results were promising, indicating cost-effective fabrication using local materials that met the minimum requirements of UHFRC in terms of compressive strength. Furthermore, inverse analysis proved to be an easy and efficient method for capturing the flexural response of UHPFRC beams.

 Artículos similares

       
 
Jing Liu, Tao Zhang, Zhicheng Pan and Fanjun Ma    
Concrete-filled round-ended steel tubes (CFRTs) are a unique type of composite stub columns, which have the advantage of aesthetics and a well-distributed major?minor axis. Thus, the structure has been widely employed as piers and columns in bridges. To ... ver más
Revista: Buildings

 
Estefanía Gómez-Gamboa, Jorge Guillermo Díaz-Rodríguez, Jairo Andrés Mantilla-Villalobos, Oscar Rodolfo Bohórquez-Becerra and Manuel del Jesús Martínez    
Revista: Infrastructures

 
Khaqan Baluch, Heon-Joon Park, Kyuchan Ji and Sher Q. Baluch    
Whilst numerical modelling is commonly used for simulation to check the design of water conveyance, sluicing and spillway structure design, the numerical modelling has rarely been compared with the physical model tests. The objective of this research pre... ver más
Revista: Water

 
Oscar Bermejo, Juan Manuel Gallardo, Adrian Sotillo, Arnau Altuna, Roberto Alonso and Andoni Puente    
Labyrinth seals are commonly used in turbomachinery in order to control leakage flows. Flutter is one of the most dangerous potential issues for them, leading to High Cycle Fatigue (HCF) life considerations or even mechanical failure. This phenomenon dep... ver más

 
Christian Lehr, Pascal Munsch, Romuald Skoda and Andreas Brümmer    
The acoustic properties of a single-stage centrifugal pump with low specific speed are investigated by means of compressible 3D CFD simulations (URANS) and experiments. In order to determine the pump?s acoustic transmission and excitation characteristics... ver más