A wind-wave-current coupled field observation and simulation system for cross-sea bridges

Abstract

The invention discloses a wind-wave-flow coupling field observation and simulation system for a cross-sea bridge, comprising a wind observation system, a wave-current observation system, a tide level observation system, a data collection and storage system, and a wind-wave-flow coupling field numerical analysis system. The wind observation system consists of several wind observation stations, located on the land on both sides of the bridge, for gradient wind observation. The wave and current observation system consists of multiple wave and current observation stations, located in the waters near the bridge site, for continuous wave surface and layered flow velocity observations. The tide level observation system consists of several tide level observation stations, which are located in the coastal waters near the bridge site. The spatial correlation, time synchronization and continuous observation data of wind, wave, ocean current and tide level are stored in the data acquisition storage system. Based on the above observation data, the wind-wave-current coupled field numerical analysis system establishes a numerical simulation model of the wind-wave-current coupled field. After verification and calibration, combined with historical observation data, the spatial correlation and time synchronization acting on the bridge are analyzed. The characteristic parameters of wind-wave-current coupling field of .

Description

technical field [0001] The invention relates to the technical field of bridge engineering, and is a device for observing the wind, wave, ocean current and tide level in the wind-wave-current coupling field near the cross-sea bridge, and obtaining the time synchronization, continuity and spatial correlation of each position of the bridge. Observation and simulation system of characteristic parameters of wind, wave, ocean current and tide level. 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. On-site observation data such as wind, wave, current and tide level are the first-hand information for evaluating the environmental load of cross-sea bridges, and are the key factors to control the construction and operation safety of cross-sea bridges. [0003] For sea-crossing bridges, there is a strong coupling b...

AI Technical Summary

Problems solved by technology

However, the observation of waves and currents in the offshore waters was carried out relatively late, with few observation stations and relatively lagging observation techniques

Most of the early wave observations in my country were based on visual observations, and the accuracy and representativeness of the observation data could not meet the requirements of cross-sea bridge engineering applications.

Therefore, the on-site observation data of wind, wave, current and tide level near the bridge across the open sea are very limited, and there is a lack of spatial correlation, time synchronization and continuity of wind, wave, current and tide level at the bridge position during the typhoon process. Observations, unable to analyze and obtain spatially correlated, time-synchronized and continuous wind loads, wave loads and ocean current loads acting on key positions on the bridge

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