A bridge deformation monitoring method

Abstract

The invention provides a bridge deformation monitoring method. A permanent benchmark point is arranged in a pier top position in a bridge girder box chamber, and a cross section monitoring point is arranged in each segmental beam; the height difference between the cross section monitoring point in each segmental beam and the benchmark point is measured through a level gauge, so that the elevationof the cross section monitoring point in each segmental beam is obtained through calculation; and the deformation situation of each segmental beam can be mastered by comparing the measured elevation numerical values of the cross section monitoring points in the segmental beams, so that the purpose of continuously monitoring the deformation condition of a bridge is achieved. By applying the monitoring method, the construction period and the operation period of the bridge can be continuously monitored, so that the abnormal situation of the bridge in the construction and operation processes can be found in time. The invention further discloses a monitoring point arrangement device adopted by the bridge deformation monitoring method. The monitoring points are fixedly arranged on a web plate inthe bridge box chamber through supporting parts. The device is simple and reliable in structure and easy to install, and the accuracy of measuring data is effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a bridge deformation monitoring method and a measuring point setting device. Background technique [0002] In bridge engineering, in order to ensure the safety of the bridge, it is necessary to monitor the deformation of the bridge frequently (including the deformation monitoring of the bridge construction period and the operation period), so as to achieve the purpose of mastering the deformation of the bridge. [0003] The existing monitoring method is: setting monitoring points on the bridge deck, and monitoring the deformation of the bridge during construction and use. The existing monitoring methods are not continuous enough for the bridge construction period and operation period monitoring work, and displacement monitoring points need to be re-arranged after the construction period is over; since the monitoring points are set on the surface of the bridge, the moni...

AI Technical Summary

Problems solved by technology

The existing monitoring methods are not continuous enough for the bridge construction period and operation period monitoring work, and displacement monitoring points need to be re-arranged after the construction period is over; since the monitoring points are set on the surface of the bridge, the monitoring points are easily affected by the environment and external damage (such as vehicle load, maintenance construction during service life, man-made damage, non-structural deformation (settlement), etc.), resulting in inaccurate measured data and unable to accurately evaluate and truly reflect the deformation of the bridge, resulting in the inability to make an accurate judgment on the current status of the bridge. Hidden danger

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