A bridge deflection detection device

Abstract

The invention discloses a bridge deflection detection device, and mainly relates to the deflection detection field. The bridge deflection detection device comprises a reflection device and a detection device. The reflection device comprises a first base, a sliding column, an L-shaped sliding rod, and a reflection mirror. The detection device comprises a second base, a top part control box, a vertical rack, a horizontal flat plate, a bottom part control box, a horizontal rack, a reflection type photoelectric switch, and a television remote controller. The outer side of the vertical rack is provided with scale lines, and the position of the reflection type photoelectric switch is corresponding to the position of the reflection mirror. The reflection type photoelectric switch is serially connected with a second remote control motor and the motor power supply of the second remote control motor by leads. The bridge deflection detection device is advantageous in that the deflection of every position of the bridge is detected, and because the deflection deformation of the middle part of the bridge is large, the deflection deformation degree of the middle part of the bridge is detected effectively; detection results are accurate and reliable, and an object of realizing the safe use of the bridge is achieved.

Description

technical field [0001] The invention relates to the field of disturbance detection, in particular to a bridge deflection detection device. Background technique [0002] During the service process of the bridge, it is bound to have deflection deformation due to the constantly changing load, as well as the influence of material aging, fatigue effect and corrosion effect. Deflection deformation is the most direct response to structural stiffness, a macroscopic manifestation of structural safety, and an important indicator to ensure safe operation of bridges. [0003] Nowadays, the detection of deflection and deformation of bridges, that is, the detection of static deformation of relative displacement of structures, commonly used detection equipment includes dial indicators, levels, electronic rulers, Unicom static levels, etc. It is simple and convenient to use manual field measurement , with higher precision. However, these methods can only detect the side edge of the bridge...

AI Technical Summary

Problems solved by technology

However, these methods can only detect the side edge of the bridge. There are many vehicles in the middle of the bridge, and the deflection deformation in the middle of the bridge is slightly larger than that of the side edge of the bridge. It cannot get a good deflection detection. Therefore, there is an urgent need for a method that can effectively detect the deflection deformation in the middle of the bridge. device capable of deflection detection at each position of the bridge

Images