In order to obtain the beneficial behavior of FSRC beams, it is recommended to drill the beam with a hole size diameter of up to 0.4h and up to a hole size length of 0.3h for square holes.
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High-voltage pulse discharge (HVPD) is an energy-saving, efficient, and green technique, which has broad prospects in concrete crushing. The finite element models of the concrete beam, slab,...
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The local splitting behaviour in Fibre Reinforced Concrete (FRC) elements under a high concentrated load is gaining a growing interest, especially with reference to precast …
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The parameters in the test of crushing concrete columns by HVPD include strength grade of concrete, column borehole aperture, hole spacing, discharge voltage and number of copper wires.
WhatsApp: +86 18221755073
The parameters in the test of crushing concrete columns by HVPD include strength grade of concrete, column borehole aperture, hole spacing, discharge voltage and number of …
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The local splitting behaviour in Fibre Reinforced Concrete (FRC) elements under a high concentrated load is gaining a growing interest, especially with reference to precast tunnel segments.
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In order to investigate the effect of reinforcement spacing, reinforcement diameter, and concrete strength on the PPD crushing effect, ABAQUS finite element software v.2021 was used to simulate and analyze the whole process of PPD crushing.
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The parameters in the test of crushing concrete columns by HVPD include strength grade of concrete, column borehole aperture, hole spacing, discharge voltage and number of copper wires.
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The Concrete Damage Plasticity Model (CDP) [4, 5] is a model built into ABAQUS to simulate the behavior of concrete under tensile cracking and compression crushing. The application of this model requires the input of the stresses and inelastic strains of concrete in tension and compression, calculated from the concrete constitutive equations.
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the existing concrete elements, and thus uses the same nodes as the underlying concrete elements (Fig. 2 (b)). Cracks can also be idealized into either the discrete type or the smeared type. D.Finite Element Discretization A solid concrete slab model shown in Fig. 1 is descretized with a 3D finite element model as shown in Fig. 4. The hole
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Thorenfeldt et al. [21], assuming that concrete crushing occurred in one row of concrete elements in the FE analyses of RC members. To properly define the concrete compressive behavior and ...
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The application of pulse power discharge (PPD) technology in the crushing and dismantling of concrete structures has characteristics related to both green and environmental protection, as well as safety and reliability, with broad application prospects in the construction and municipal engineering fields in dense urban areas. Nevertheless, the research into using …
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The results show that the model can reproduce the nonlinear behaviors of concrete due to the impact of the water jet, including crack propagation, large deformation of the crushing crater, …
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The parameters in the test of crushing concrete columns by HVPD include strength grade of concrete, column borehole aperture, hole spacing, discharge voltage and number of …
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In this case, there is a concrete local compression in the structural elements and its destruction probability from punching shear or crushing depending on the geometric dimensions that fall under the relevant design schemes adopted in the standards.
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Assuming that fibres enhance the splitting bearing capacity (P splitting,crack < P max < P crushing), in order to evaluate the fibre contribution on the splitting behaviour, it is necessary to have the concrete crushing failure as far as possible from the cracking for splitting (P splitting,crack /P crushing <1). 2.1.1. LL configuration
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The concrete crushing was due to the bolt contacting with the steel plate and concrete, inducing two major inclined cracks originating from the hole and spreading to the edge of the concrete in opposite directions and forming a concrete wedge (Fig. 6 a).
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High-voltage pulse discharge (HVPD) is an energy-saving, efficient, and green technique, which has broad prospects in concrete crushing. The finite element models of the concrete beam, slab, and column segments were established with ANSYS/LS-DYNA finite element software.
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High-voltage pulse discharge (HVPD) technology has a broad prospect in concrete crushing. The model of concrete beam sections is established by ANSYS/LS-DYNA finite element software. The shock wave, caused by the electrohydraulic effect of HVPD with 50 kJ energy, is equivalent to an explosive blast shock load.
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Modeling of crack opening after the reinforcement yielding stage and ultimate concrete crushing were carefully studied on the reference beam to ensure a reliable basis for the modeling of the strengthened beam.
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High-voltage pulse discharge (HVPD) technology has a broad prospect in concrete crushing. The model of concrete beam sections is established by ANSYS/LS-DYNA finite element software. The shock wave, caused by the electrohydraulic effect of HVPD with 50 kJ energy, is …
WhatsApp: +86 18221755073
In this case, there is a concrete local compression in the structural elements and its destruction probability from punching shear or crushing depending on the geometric dimensions that fall …
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The model of concrete beam sections is established by ANSYS/LS-DYNA finite element software. The shock wave, ... The influence of aperture and spacing of holes on the crushing effect of the concrete beam segment was investigated. Two holes were drilled vertically on the wide and length surface of the concrete beam section, and the corresponding ...
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The finite element models of the concrete beam sections were established to investigate the influence of diameter and spacing of the holes on the crushing effect of concrete beam segments.
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High-voltage pulse discharge (HVPD) is an energy-saving, efficient, and green technique, which has broad prospects in concrete crushing. The finite element models of the …
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The results show that the model can reproduce the nonlinear behaviors of concrete due to the impact of the water jet, including crack propagation, large deformation of the crushing crater, and penetration.
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Concrete caissons, also known as drilled shafts, are deep foundation elements constructed by drilling a cylindrical hole into the ground and filling it with reinforced concrete. These structures are designed to transfer heavy loads from a building or structure to deeper, more stable soil or …
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Where [4][5] [6] [7][8][9][10][11][12] undertook an experimental and finite element analysis study on the behavior of concrete columns with embedded pipes, and they found from their study that the ...
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Beam segments 5–8 were designed to analyse the impact of hole spacing on the crushing effect, as the hole spacings were 187.5, 225, 262.5, and 300 mm. Beam segments 9–12 were designed to assess the effect of hole diameter on the crushing effect, as the hole diameters were 32, 36, 40, and 42 mm.
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