Steel structure-concrete combined bridge tower structure

Abstract

The invention discloses a steel structure-concrete combined bridge tower structure, which comprises a steel structure and a concrete bridge tower, wherein the steel structure penetrating from top to bottom is arranged inside the concrete bridge tower, and connecting pieces are arranged between the steel structure and the concrete bridge tower; the steel structure is completely contained in the concrete pylon; preferably the section of the concrete bridge tower is of a hollow tank shape; hoop reinforcements are arranged in a partition manner in the reinforced concrete pylon along the cross section of the bridge tower structure; and longitudinal ribs are arranged in a partition manner in the reinforced concrete pylon along the vertical direction of the bridge tower structure on the circumference surrounding the cross section of the bridge tower structure. According to the invention, the use amount of temporary steel structures during bridge tower construction is reduced, the turnover amount of the templates is increased, the construction progress is accelerated, the construction convenience is provided and the construction cost is saved.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, in particular to main tower structures of cable-stayed bridges or suspension bridges and similar bridges. Background technique [0002] The bridge tower is the key force-bearing structure of the bridge to smoothly transmit the huge cable force of the cable or stay cable to the substructure. With the increasing span of the bridge, the cable force increases accordingly, and the height of the cable tower increases accordingly, and the stress of the bridge tower tends to be complicated, which requires a more reasonable structural form of the bridge tower. [0003] According to the material of the bridge tower structure, there are mainly three types: concrete bridge tower, steel bridge tower and mixed structure bridge tower. Concrete bridge pylons have a large dead weight, and temporary steel structure support needs to be erected during the construction period; steel pylons are easy to pro...

AI Technical Summary

Problems solved by technology

Concrete bridge pylons have a large dead weight, and temporary steel structure support needs to be erected during the construction period; steel pylons are easy to process and assemble, and at the same time speed up the construction progress, but the cost is high; hybrid structure pylons need to connect steel pylons and concrete pylons , the joint is usually located in the middle and lower part of the bridge tower, and the force and structure are relatively complicated, which increases the difficulty of design and construction

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