Structure wave force measuring method for sea-crossing bridge

Abstract

The invention relates to a structure wave force measuring method for a sea-crossing bridge. The method comprises: when a structure wave total force analysis instruction is triggered, acquiring all measurement signals according to an analysis time period specified in the structure wave total force analysis instruction, and acquiring all the measurement signals in real time through pressure sensorspasted to all measurement points on the surface of the sea-crossing bridge structure; processing and analyzing each measurement signal to obtain pressure data of each measurement point at the same moment; and according to the pressure data of each measuring point, performing integration along the surface of the sea-crossing bridge structure to obtain the total wave force of the structure, and acquiring on-site measuring signals in real time based on pressure sensors pasted on the measuring points on the surface of the sea-crossing bridge structure to obtain the total wave force of the structure. The measurement accuracy of the total wave force borne by the measurement structure is improved, and damage to a sea-crossing bridge structure is small.

Description

technical field [0001] The present application relates to the technical field of on-site hydrodynamic measurement, in particular to a method for measuring wave force of structures of cross-sea bridges. Background technique [0002] In recent years, the construction of cross-sea bridges has developed rapidly. For long-distance cross-sea bridges, a combination of artificial islands and bridges is often used, such as the Hong Kong-Zhuhai-Macao Bridge. However, due to the obvious influence of the terrain, there is no mature calculation method for the total wave force on the bridge foundation and beam body at the junction of the island bridge, and there is a lack of first-hand on-site prototype observation data. Although it can be studied through physical model tests, there is a certain scale effect in model tests. Therefore, it is necessary to carry out on-site observation and supplement the first-hand on-site observation data in order to guide the design of similar sea-crossin...

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Problems solved by technology

[0003] Due to the large size of the bridge structure in practice and the large wave force on the structure, it is almost impossible to directly measure the total wave force on the structure on site. The measurement method has certain requirements on the location of the measuring points. If the location of the measuring points is not reasonable enough, it cannot reflect the change law of the surface pressure, and finally the accuracy of the total wave force is not high.

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