Method for using monitor having crack bending deformation measuring function

Abstract

The problem to be solved by the invention is how to make a crack monitor have a bending deformation monitoring function. A method for using a monitor having a crack bending deformation measuring function includes the following steps: a, installing the monitor and recording the initial data of respective sensors; b, after some time, according to the new data measured by the sensors, calculating thecrack deformation at a data monitoring end, wherein the calculation method is characterized in that the bending deformation is the change value of an angle sensor; the displacement is the change value of a retractable displacement sensor B; the translation is the change of the reading of a retractable displacement sensor C relative to the initial value, namely the change of the projection lengthof the distance between two columns in the crack direction; a crack width is the change of the projection length of the distance between the two columns in the crack vertical direction; and the crackdeformation can be calculated according to the translation , the distance between the columns, and the Pythagorean theorem. The monitoring functions are comprehensively and accurately integrated by ameasuring rod.

Description

technical field [0001] The invention relates to the field of measurement technology, especially the monitoring of structures, buildings or ground cracks. Background technique [0002] At present, the fracture monitor can measure data such as fracture width, translation and dislocation on both sides of the fracture, but it has not been seen to have the function of measuring fracture bending deformation. [0003] The so-called bending deformation means that the two sides of the crack rotate along the axis of the crack, so that the planes where the two sides are located are no longer parallel. When the crack is squeezed face-to-face, it is easy to bend and deform. For example, when the bridge is impacted by a huge water flow, bending may occur at the impact. This deformation poses a great threat to the structural stability on both sides of the crack. [0004] Bending deformation does not appear in the relative translation of the two sides of the crack on the plane, nor does i...

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