Measuring apparatus and method for flexibility line shape of bridge structure

Abstract

The invention discloses a measuring apparatus and a method for the flexibility line shape of a bridge structure. The measuring apparatus is not fixedly arranged on a bridge, the equipment is simple, the realization is easy, the cost performance is high, the operation is convenient, the flexibility line shape of the bridge can be rapidly, objectively, and intelligently sensed and reproduced, the flexibility of the bridge is measured, the overall flexibility change of the bridge can be reflected via the change of line shapes in different times, bridge management workers can be informed of the current flexibility line shape of the bridge in time, especially the flexibility change state, the health and safety condition of the bridge can be analyzed, the bearing ability of the bridge can be fully developed, load limit and the falling of the bridge are reduced, and the practical engineering value is very high.

Description

technical field [0001] The invention belongs to the technical field of bridge structure measurement, and relates to a bridge structure deflection linear measurement device and method. Background technique [0002] In the process of bridge inspection and health monitoring, the deflection of the bridge is an important parameter that is very concerned about the three key issues of strength, stiffness, and stability of the bridge structure. Force characteristics have important theoretical value, therefore, the precision and accuracy of deflection measurement is very important. Under this demand, researchers at home and abroad have developed many new deflection measurement methods, among which the representative ones are: dial indicator method, connected pipe method, level method, GPS deflection measurement method, and laser method. They all have some problems and deficiencies to varying degrees: high cost, low precision; difficult maintenance, not suitable for long-term use; ha...

AI Technical Summary

Problems solved by technology

They all have some problems and deficiencies to varying degrees: high cost, low precision; difficult maintenance, not suitable for long-term use; harsh conditions of use, poor practicability; long preparation time, inconvenient installation

In the existing deflection measurement technology, the deflection measurement of a bridge is limited to the limitation of measurement time and the convenience of operation. Generally, only a small number of points are measured, and then the method of rough fitting is carried out, which cannot reproduce the bridge well. continuous deflection line

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