A sensor installation mechanism in a bridge health monitoring system

Abstract

The invention discloses a sensor installation mechanism in a bridge health monitoring system, which includes a housing, a spring, and a support plate. An opening is arranged on the upper side of the housing, and a plurality of hanging ears are arranged on the housing. Symmetrical, the mounting lug is perpendicular to the side of the housing, and there is at least one threaded hole on the mounting lug. The housing is connected to the bridge deck through a screw that matches the threaded hole. There is a wiring port on the side of the housing, and the lower opening of the wiring port is in contact with the bottom surface of the housing. , one end of the spring is vertically connected to the inner bottom surface of the casing, the other end of the spring is vertically connected to the support plate, and the support plate matches the opening. The spring acts on the vibration sensor in real time to ensure that the vibration sensor is in close contact with the bridge deck, avoiding the phenomenon of loose contact between the vibration sensor and the bridge deck due to bridge vibration, and reducing the data error collected by the vibration sensor when the screw is loose.

Description

technical field [0001] The invention relates to bridge health monitoring, in particular to a sensor installation mechanism in a bridge health monitoring system. Background technique [0002] As an integral part of the transportation system, bridges have played an important role in the development and evolution of human civilization. With the development of modern technology and the continuous growth of transportation demand, more and more large bridges (such as sea-crossing bridges, long-span bridges, etc.) appear in people's field of vision. It has important strategic significance in terms of transportation, military and social life. [0003] However, during the construction and use of the bridge, due to the erosion of the environment, harmful substances, vehicles, wind, earthquakes, fatigue, human factors, etc., as well as the continuous degradation of the properties of the materials themselves, the structural parts are far from reaching the design life. Different degree...

AI Technical Summary

Problems solved by technology

[0009] The present invention solves the problem that in the process of using the vibration sensor in the bridge health monitoring system existing in the prior art, the bridge itself will vibrate due to external effects during the use process, and the vibration will cause the bolts connecting the vibration sensor and the bridge deck to loosen, thereby As a result, there are certain errors in the collected vibration data. A sensor installation base for bridge health monitoring is provided, which can ensure that the vibration sensor is tightly connected to the bridge deck when the connecting bolts are loose, thereby reducing the error of vibration data.

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