Replaceable assembly type column capable of spatial interlocking segment sliding and construction method thereof

By using irregular segmental design and high-performance coating materials, the spatially interlocking sliding segmental columns solve the problems of bridge columns being easily damaged under seismic loads and the long construction cycle of traditional methods, enabling rapid construction and post-earthquake repair. This method is suitable for the efficient construction of urban bridges and stations.

CN122105959APending Publication Date: 2026-05-29WUHAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN UNIV OF TECH
Filing Date
2026-02-24
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing bridge piers are prone to permanent damage under seismic loads. Traditional construction methods require large land areas and have long construction periods, and the prefabricated node connections are complex, making it difficult to meet the needs of rapid construction and post-earthquake functional restoration.

Method used

The replaceable prefabricated columns with interlocking and sliding segments are adopted. Through irregular segment design and high-performance coating materials, three-dimensional spatial interlocking and flexible self-resetting are achieved, avoiding vertical prestress and simplifying the construction process.

Benefits of technology

It improves the seismic performance and post-earthquake repair capability of bridge piers, shortens the construction cycle, reduces the environmental impact of construction, and the segments are replaceable, making it suitable for rapid construction in complex urban environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a replaceable assembly column capable of spatial interlocking segment sliding and a construction method thereof, wherein the replaceable assembly column comprises a column foundation, a special-shaped base segment, special-shaped segments, a special-shaped column top segment and a column top segment lock head; the special-shaped base segment is fixedly connected with the column foundation; a plurality of special-shaped segments are arranged, each special-shaped segment is stacked and clamped on the upper portion of the special-shaped base segment; the special-shaped column top segment is clamped on both sides of the topmost special-shaped segment; and the column top segment lock head is clamped at the middle position of the topmost special-shaped segment. The column is designed by adopting special-shaped prefabricated segments, is assembled from bottom to top, does not need vertical prestress, utilizes the space occlusion between the segments to keep the structure stable, and realizes the overall multi-layer mixed sliding rocking motion of the segment structure only when the earthquake occurs through the reserved assembly gap, so that the lateral deformation capacity of the column structure is effectively improved, the structural damage is reduced, and the post-earthquake functional recovery performance is improved.
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