Multifunctional bridge foundation structure suitable for strait channel deepwater strong-wave strong-current environment

Abstract

The invention discloses a multifunctional bridge foundation structure adapting to strait channel deepwater strong-wave strong-flow environment, which belongs to the technical field of bridge engineering and comprises a bridge foundation main body, the top surface of the bridge foundation main body is a circular section, the bottom surface of the bridge foundation main body is a streamline-shaped section, and the circular section and the streamline-shaped section are smoothly connected through an elliptical transition section. A scouring protection structure is arranged above the portion close to the streamline-shaped section and contracts inwards from bottom to top, and the top of the bridge foundation body is sequentially sleeved with a collapsing structure and a wave absorbing structure from top to bottom. According to the scouring protection structure, horseshoe-shaped vortexes caused by a flow field can be inhibited, formation of scouring pits is further inhibited, and the scouring protection effect is achieved; the cross section of the bridge foundation body changes from bottom to top, the upstream area of the lower structure can be reduced, lower ocean current smoothly passes around the two sides of the structure, the water flow load is reduced, and the upper end can achieve the effect of reducing the wave load.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a multifunctional bridge base structure adapted to the deep water strong wave and strong current environment of a strait channel. Background technique [0002] With the gradual improvement of my country's transportation network, there are more and more demands for the construction of cross-sea bridges. In recent years, the construction level of cross-sea bridges in my country has been continuously improved, and large-scale cross-strait channel bridges have become an inevitable trend in the development of bridge engineering. Different from bridges on land, the foundations of cross-sea bridges are inevitably built in the sea. In the face of complex marine environment, bridge foundations are not only subjected to conventional static and dynamic effects, but also face waves, currents, fluid-solid coupling vibrations for a long time, etc. Hydrodynamic action, h...

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Problems solved by technology

For example, in the setting of breakwaters in sea areas of port engineering, they can only bear wave loads from a single direction, and cannot achieve the effect of flow reduction

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