Abstract
The relation between dynamic stiffness is presented with two examples of diagnosis. A copy of the patent in the appendix gives a detailed presentation.
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After discovering the principles linking dynamic stiffness to static stiffness and internal force in the tie bar, an international patent has been registered (Fig. 5.1).
Calibration.
Establishing the relationship between dynamic stiffness and tensile force in the tie rod that needs to eliminate the dynamic stiffness value for example of the retaining wall and other elements that can modify the total value of the stiffness (Fig. 5.2).
The test results obtained in Fig. 29, for example, led to the following analyses that relate the square root of dynamic stiffness to tensile force (Fig. 5.3).
The following figure collects a portion of the tension force results for a wall with 590 ties rod (Fig. 5.4).
Establishing the relationship of dynamic stiffness and tensile force in the tie that needs to eliminate the value of dynamic stiffness for example for the retaining wall and other elements that can modify the stiffness. The wall with beams is a very different configuration with a high inertia (Figs. 5.5 and 5.6).
This method cannot be used, for example, to measure force of a pre-stressed beam cable or a bridge deck. The only element that will be measured is the inertia of the beam or deck.
A study of a quay wall of a canal of a nuclear power plant shows that one tie, no. 2, was broken. The calculated average value of the internal force was 53 tons (Fig. 5.7).
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Rincent, JJ.H. (2024). Dynamic Stiffness—Force. In: Ground Anchors. Springer, Singapore. https://doi.org/10.1007/978-981-97-4414-5_5
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DOI: https://doi.org/10.1007/978-981-97-4414-5_5
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