Exemplos de uso de Neutral axis em Inglês e suas traduções para o Português
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X- neutral axis depth.
Vc Vc0 for simple flexure and tension-flexure with the neutral axis in the cross section;
X- neutral axis depth;
For this, it is possible to edit the neutral axis position and the preferred material.
All these results refer to a single value of the relative position of the neutral axis.
Xi- neutral axis depth.
Of particular interest is the way in which waves interact with damage that is symmetrical with respect to the neutral axis.
Position of the neutral axis of the primary section.
With the tensioned reinforcement values,the bending moment resistance of the cross section was obtained for each neutral axis position by Equation 6.
Position of the neutral axis in the secondary direction.
Figure 4 illustrates the average sensibilities of the variables obtained considering all the load ratios for some relative position of the neutral axis.
Determination of neutral axis depth, concrete and steel strains.
The RF-/TIMBER Pro add-on module performs designs considering the shifted neutral axis in the case of semi-rigid cross-sections.
The position of the neutral axis of the composite section x is defined based on the relation.
The first two are the mostcommonly used in buildings, especially because most structures are far from neutral axis, increasing the stiffness of them.
Select the relative position of the neutral axis in the cross section for the ultimate limit state;
To apply this model it is necessary to know the number of cracks in the region of interest andthe width and depth of the neutral axis at each crack 11-12.
Replacing the position of the neutral axis x by the dimensionless relative value?x x/d in Equations 2 and 3 we have.
In Figure 3 it was represented the evolution of reliability index for some values of the relative neutral axis position depending on the load ratio.
The position of the neutral axis of the composite section formed by the girder and supported slab is given by the following expression.
The average values for the reliability index for each of the neutral axis position resulted, in general, between 4,0 and 5,0.
Prestressing is taken into account by a moment which cancels the design external moment,which depends on the prestressing cable eccentricity in relation to the neutral axis.
Substituting equations 6 and8 in equation 5, the position of the neutral axis can be determined from equation 9, and subsequently As, mv is determined.
As no ductility constraint was imposed in the analysis,it was observed that the importance of concrete resistance increases as the position of the neutral axis also increases.
Given these parameters andeach value for the relative position of the neutral axis, the tension reinforcement area was dimensioned from Equation 8.
As the position of the neutral axis increases, the portion of the concrete in bending moment also increases, while the portion of reinforcement decreases, as can be seen in equation 15.
The influence of concrete and steel strength variables is significantly sensitive to the relative position of neutral axis, alternating its importance as?x increases.
In all cases the relative position of the neutral axis at ULS was adopted and kept constant at 0,45 for that the ductility constraint imposed by the NBR 6118 always have been respected.
Figure 7 shows the safety partial factors for each load ratio,obtained by assessing the arithmetic mean between the values calibrated to the different relative positions of the neutral axis.
Note that the calculated value is positive when the position of the neutral axis is above the adopted reference, in this case, the underside of the slab, if ribbed or steel-concrete composite.