A pier protection structure for preventing riverbed egg rock impact

By enclosing the bridge piers with steel plates and filling them with buffer material, combined with anchoring keys and energy dissipation structures, the problem of bridge pier damage under the impact of riverbed gravel and pebbles was solved, achieving efficient protection and reducing construction costs.

CN224468315UActive Publication Date: 2026-07-07HUNAN PROVINCIAL COMM PLANNING SURVEY & DESIGN INST CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520693901.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-07-07
Estimated Expiration
2035-04-14

AI Technical Summary

Technical Problem

In existing technologies, bridge piers are prone to defects such as voids, exposed reinforcement, and pitting when subjected to impacts from riverbed gravel and pebbles. Furthermore, the protection methods are prone to cracking or increase construction costs and time.

Method used

The structure employs a protective steel plate structure, an anchor key structure, and an energy dissipation structure. Buffer material is filled between the protective steel plate and the pier column. The energy dissipation structure protrudes from the outside of the steel plate, and the anchor key is connected to the inside of the pier column through a PBL key and a welded ring hoop, forming a stable protective structure.

Benefits of technology

It improves the impact resistance and overall stability of bridge piers, reduces construction costs and time, and effectively absorbs the impact energy of gravel and pebbles, protecting the piers from damage.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224468315U_ABST
    Figure CN224468315U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of pier protection structure for preventing riverbed egg broken rock impact, including protective steel plate structure, anchoring key structure and energy dissipation structure, protective steel plate structure is used to keep out in pier, and protective steel plate structure is filled with buffer material between and pier, anchoring key structure includes multiple PBL keys and multiple welding ring hoops, multiple vertically spaced reserved holes are set on each PBL key, welding ring hoop is connected on PBL key by penetrating multiple reserved holes spaced along the circumference of the protective steel plate structure, and welding ring hoop is connected to the outer side of vertical main reinforcement of pier, and the structure is better in steel structure protection effect, and the connection form of anchoring key is more stable, can be prefabricated processing in advance, improve construction efficiency, and energy dissipation structure can absorb the impact force of egg broken rock scouring, reduce the impact energy on pier, achieve the purpose of energy dissipation, while buffer material can also buffer the impact on pier, overall protection energy dissipation effect is better.
Need to check novelty before this filing date? Find Prior Art