Deviation-rectifying and resetting device for bridge pier column

Abstract

The invention discloses a deviation-rectifying and resetting device for a bridge pier column, which comprises a reaction frame and a jack, wherein the reaction frame is anchored on a column top capping beam through an anchor bolt, the jack is arranged between the reaction frame and a beam-end diaphragm plate, one end of the jack is propped against the beam-end diaphragm plate, and the other end of the jack is propped against the reaction frame. The deviation-rectifying and resetting device for the bridge pier column comprises the reaction frame and the jack, the jack applies a horizontal thrust to push the inclined pier column by taking the reaction frame and the beam-end diaphragm plate as a fulcrum, so that the inclined pier column is restored longitudinally; and the horizontal thrust in the reverse direction of an inclined thrust to the pier column is applied through the jack, and compared with the steel cable-stayed in the prior art, the deviation-rectifying and resetting device is small in acting force of the horizontal thrust, and can ensure the accurate resetting through accurately controlling the displacement of the jack.

Description

technical field [0001] The invention relates to a bridge disease treatment device, in particular to a bridge pier column deviation correction and reset device. Background technique [0002] It is very common for bridges with curved slopes to have skewed piers (e.g. figure 1 As shown), it poses a serious threat to the safety of bridge structure operation. The main reasons for the offset and inclination of pier columns are: figure 2 As shown, because the sliding surface of the support is not installed horizontally, a thrust in the horizontal direction is generated, which continuously pushes the pier to produce deflection. The generation of horizontal thrust is due to the component force in the horizontal direction generated by the static load of the beam body and the bridge deck system, the dynamic load of the vehicle, etc., and the friction difference between the beam body and the support when the temperature changes. Such as image 3 As shown, under the combined action...

AI Technical Summary

Problems solved by technology

[0004] For the treatment of the above-mentioned diseases, the longitudinal correction and reset of the inclined pier column is the key. The existing correction and reset method is to use steel cables to pull the cover beam of the inclined pier column obliquely, so that the pier column overcomes the friction between the beam body and the support. Reset, the deviation correction and reset devices used are steel cables and electric hoists; however, the defects of this method are that the pulling force required for deviation correction and reset is too large, and the reset is difficult, and the second is that the displacement of the pier cannot be accurately controlled. Difficult to guarantee accurate reset

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