METHOD FOR DETERMINING TENSION FORCE OF CABLE-STAYED ELEMENT OF BRIDGE

摘要

FIELD: construction.;SUBSTANCE: method envisages the excitation of free oscillations of the cable-stayed element by applying a pulse impact at the point of its attachment to the anchor device. The vibrations are measured by means of an accelerometer sensor, the measurement data are transmitted into the measurement unit and further to the software module, where they are processed. Wherein the force is determined based on the first three recorded multiple frequencies of the natural vibrations of the cable-stayed element. In calculating the longitudinal force in the cable-stayed element, such parameters are taken into account as the weight per unit length of the cable-stayed element, the weight of the vandal-proof shell, the natural frequency of the cable-stayed element, the length of the cable stayed element, the length of the anchor device. As the average value of the force calculated, the tension force of the cable-stayed element of the bridge is estimated.;EFFECT: improving measurement accuracy.;2 dwg, 1 tbl