Test system for dynamic response of bridge full-bridge elastic model to wind, wave and current coupling

Abstract

The invention discloses a test system for dynamic response of bridge full-bridge elastic model to wind, wave and current coupling. The test system comprises: a wind, wave and current coupling field simulating system used for generating a target wind, wave and current coupling field through a simulation-feedback-control mechanism; a bridge full-bridge elastic model which is arranged in the wind, wave and current coupling field simulating system and is used for simulating the appearance, the rigidity, the quality and the damping characteristics of an elastic structure of the full bridge in construction and completion states of the bridge; and a test analyzing system used for acquiring and analyzing wind, wave and current coupling field parameters, and dynamic responses, such as displacement, acceleration speed, underwater foundation surface dynamic water pressure distribution, and foundation six component forces, of the bridge full-bridge elastic model under the action of the wind, wave and current coupling field. According to the invention, the test system can realize simulation of the wind, wave and current coupling field with space correlation and time continuity and synchronization, simulation of the full-bridge elastic model in construction and completion states of the bridge, and real-time test and analysis of the wind, wave and current coupling field parameters and dynamic responses of the bridge full-bridge elastic model. Beyond that, the test system is convenient to implement, achieves high precision and strong reliability.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a dynamic response test system for a bridge full-bridge elastic model coupled with wind, wave and current. Background technique [0002] As bridge construction moves from inland to the open sea, bridge construction is facing severe challenges in harsh marine environments such as deep water, strong winds, rapids, and huge waves. [0003] For sea-crossing bridges, there is a strong coupling between wind, waves, and ocean currents acting on the structure. The waves in the ocean are mainly wind waves and swells, among which wind waves are waves formed under the direct action of wind force; when the wind stops, or when the waves leave the wind area, the waves at this time are called swells. Since the motion of the waves causes the sea surface to rise and fall and change over time, changing the roughness of the air-liquid interface, the wave motion will in turn affect the w...

AI Technical Summary

Problems solved by technology

[0011] In view of this, the main purpose of the present invention is that the wind-wave-current coupling field, bridge full-bridge elastic model and its test cannot be accurately simulated in the bridge construction and bridge-completed state wind-wave-current coupling effect model test considering time synchronization, spatial correlation and topographical influence. To deal with problems such as dynamic response, provide a dynamic response test system for the coupling effect of wind, wave and current on the elastic model of the bridge

Images