Shock absorption combined type pier

Abstract

The invention relates to the field of bridge buildings, and discloses a shock absorption combined type pier. The shock absorption combined type pier comprises pillar legs and corrugated steel sheets. The number of the pillar legs is at least two, and the adjacent pillar legs are connected into a whole through the corrugated steel sheets to form a box-shaped pier body. The corrugation direction of the corrugated steel sheets is the axial direction of the pier body. The pillar legs are used for bearing axial pressure and bending moment, the corrugated steel sheets are used for bearing horizontal shearing force, the press bending stability of the pillar legs and the overall horizontal anti-shearing performance and deformation capacity of the pier are improved in a matched mode, and the shock absorption combined type pier is suitable for pier deign of various heights. The corrugated steel sheets and the pillar legs have clear difference responsibilities, and the use efficiency of materials can be improved. The pier body is hollow, the use amount of concrete can be reduced, and the self-weight of the structure is reduced. The shock absorption combined type pier has the advantages of being convenient and fast to construct, saving in energy, environmentally friendly, good in economy and the like.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a steel-concrete composite bridge pier structure with better seismic performance. Background technique [0002] Reinforced concrete bridge piers are a kind of bridge piers commonly used in bridge structures at present, but such bridge piers are easily damaged by earthquakes and cause bridge accidents. Bending failure and shearing failure are the two main failure forms of reinforced concrete piers under earthquakes. The bending failure is due to the insufficient bending stiffness of the bridge piers, which mainly occurs in middle and high piers; the shearing failure is due to the insufficient shear stiffness of the bridge piers. , mainly occurs in low-middle piers. Compared with ductile bending failure, shear failure has a certain degree of brittleness, which often causes more serious bridge accidents. Therefore, when designing reinforced concrete piers, high reinforcement rati...

AI Technical Summary

Problems solved by technology

Because steel has higher strength and better ductility than concrete, some steel bridge piers and steel pipe concrete composite bridge piers have begun to be used in practical projects. At present, the cost of such bridge piers is relatively high, and they have certain limitations in practical applications.

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