Maritime work foundation multi-directional loading test system and method capable of simulating wind-wave effect

Abstract

The invention provides a maritime work foundation multi-directional loading test system and method capable of simulating a wind-wave effect. The maritime work foundation multi-directional loading testsystem comprises a control system, a servo electric controller, a loading reaction frame, a model test box and a load simulation mechanism; the load simulation mechanism outputs a simulated load to afoundation model in the model test box; the load simulation mechanism comprises a vertical actuator used for simulating a vertical load, and a horizontal actuator used for simulating a marine wind load and a marine wave load; the horizontal actuator comprises first horizontal actuators fixed to rotating discs for simulating the different loading directions of the wave load, and second horizontalactuators fixed to rotating discs for simulating the different loading directions of the wind load; and different loading modes can be simulated by the rotating discs for simulating the different loading directions of the wave load and the rotating discs for simulating the different loading directions of the wind load. Under different model scales, long-term loading of a marine engineering structure foundation of the wind and wave loads with the different load frequencies and amplitudes at any loading angle and under continuous change of the loading angles can be simulated.

Description

technical field [0001] The invention relates to the technical field of test equipment, in particular to a multi-directional loading test system and method for marine foundations that simulate wind-wave action. Background technique [0002] The loads on the foundation of marine engineering structures during their service are very complicated. In addition to the self-weight and superstructure, they are also subjected to hundreds of millions of long-term horizontal wind and wave long-term cyclic loads. The amplitude, frequency and direction of each load All are different and change from time to time. Under long-term cyclic loading, the foundation will undergo cumulative deformation and stiffness changes. When the cumulative deformation exceeds the limit state allowable value of the normal use of the foundation, the fan must stop working and cannot continue to be used. The change of foundation stiffness under long-term load will cause the natural frequency of wind power struct...

AI Technical Summary

Problems solved by technology

However, there is currently no model test equipment that can realize long-term loading of foundations under different loading angles and continuously changing conditions of wind and wave loads with different load frequencies and load amplitudes at the same time.

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