negative bending moment


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negative bending moment

A bending moment that produces compression on the bottom side of a beam and tension on the top side.
References in periodicals archive ?
It is because the negative bending moments were superimposed on the beam end under the work of lateral force, which increases the plastic deformation of the pressing region.
(3) Under the interaction of vertical and horizontal forces, the plastic hinges first appeared at the end of the frame beam where the negative bending moments superimposed.
As shown in Figure 14, the positive moment of the steel floral tube in Test C was 22.9 kN-m as the loading displacement reached 180 mm, and the negative bending moment reached 19.9 kN-m, which are close to the ultimate bending moment of 24.3 kN-m.
As the loading displacement reached 180 mm, the strain gauge below the reverse bending point was damaged, and the maximum negative bending moment above the reverse bending point was 32.00 kN x m.
The maximum positive and negative bending moments are located at positions away from the top and bottom of the sliding surface, respectively.
Stress characteristics of the equivalent section under negative bending moment and small eccentric compression is shown in Figure 6(b).
Negative Bending Moment and Large Eccentric Compression
Stress characteristics of the original section under negative bending moment and large eccentric compression can be further divided into two circumstances, as shown in Figures 7(a) and 7(b), according to the size of eccentricity.
The span of outer section will be chosen in a way that the max positive and negative bending moments within this section take the same absolute value.