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Half of the specimens were tested at room temperature to determine punching shear strength. 75 vRd,c + 1. The slab was concreted on layer-compacted gravel with a thickness of 0. u = the length if the basic control perimeterThere are numerous design techniques to mitigate against punching shear. The punching resistance of column bases should be verified at control perimeters within 2.

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This basic division is further developed to specific constitutive concrete models. edu and the wider internet faster and more securely, please take a few seconds toupgrade your browser. The shear force used in the verification should be the effective force taking into account any bending moment transferred into the slab (see above)vRd,max =design value of the maximum punching shear resistance, expressed as a stress (see Shear Table 7)
vRd,c = design value of punching shear resistance of a slab without punching shear reinforcement, expressed as a stress (see Shear Table 7)
vRd,cs = design value of punching shear resistance of a slab with punching shear reinforcement, expressed as a stress. It should be noted that the recommendation states several possibilities for application of concrete material models in nonlinear analysis.

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Shear resistance of a slab was verified according to (EC2) for slabs without shear reinforcement and with the influence of the subsoil. The new PMC design is here!
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about navigating our updated article layout. (2014) and Siburg et al. Typically, the slabs form structures and floors in heavy industry and ground of aircraft taxiing areas.

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Because of complexity of the task the design models are prepared attempting to appropriately simplify the issue or applying many limitations. The concrete slab is provided with reinforcing bars at the lower surface and is centrically loaded. The Concrete Centre provides material, design and construction guidance. 0 × 1. org/article/10.

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The third is the RackwitezFissler improved matrix procedure (RF-IMP) when some are non-normally distributed. org/licenses/by/4. The experiment was followed by a parametric study of total load capacity calculation with nonlinear analysis which is supplemented by calculations based on existing design model code. This applies particularly to the case of selection of input parameters for concrete and modelling of the slab—ground interaction. Join UsClose. The difference is more remarkable in case of input parameters for concrete in which case a difference up to 88 kN was observed.

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In addition, several design codes and guidelines are being developed that include provisions for the FRP-reinforced concrete slabs [7,23,24]. Mathematically, calculating an equivalent mean Ue and an equivalent standard deviation Ue such that:

where and are CDF and PDF for the standard normal distribution. In addition, the fatigue and creep resistances of GFRP are relatively poor during long-term service. 86 MPa.  1). The test sample and placement of deformation sensors (mm).

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Hand-fastened Ø8/100 mm reinforcing mesh of B500B visit this site was inserted in the slab. A cover of 15 + \(\delta\)c is adopted where \(\delta\) = 15mm. The irregular shape can be a result of inhomogeneous subsoil or also quicker progress of cracks on one side of the slab at higher load intensities. Typically, the slabs form structures and floors in heavy industry and ground of aircraft taxiing areas. In this paper, the experimental results from 4 research studies are used to review the existing recommendations in design codes for punching shear failure of slabs.

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Developed at and hosted by The College of Information Sciences and Technology 2007-2019 The Pennsylvania State UniversityThe article handles potential approaches to design and determination of total load capacity of foundation slabs and floors. .