Hollow pier structure

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By using precast reinforced concrete cover plates and boss structures as the bottom formwork of the pier cap in the hollow pier structure, the problems of inconvenient erection and difficult dismantling of the formwork support on the top surface of the hollow pier were solved, thus achieving convenience and improved safety in construction.

CN224494849UActive Publication Date: 2026-07-14CHINA RAILWAY NO 2 ENG GROUP CO LTD +1

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: CHINA RAILWAY NO 2 ENG GROUP CO LTD
Filing Date: 2025-07-29
Publication Date: 2026-07-14

AI Technical Summary

Technical Problem

In bridge engineering, when erecting formwork on the top surface of hollow piers, it is necessary to build internal supports to support the wooden formwork at the bottom of the pier cap, which presents problems such as inconvenience in erection and difficulty in dismantling later.

Method used

A hollow pier structure is designed, which adopts a precast reinforced concrete cover plate and a boss structure. The cover plate covers the opening of the pier body and is supported on the boss. The boss is located on the inner wall of the pier body and protrudes inward to shorten the span of the cover plate. The cover plate, the boss and the top surface of the pier body together serve as the bottom formwork of the pier cap, avoiding the need for the erection of internal supports.

Benefits of technology

It solved the problems of inconvenient scaffolding erection and difficult dismantling, reduced the structural self-weight and foundation bearing capacity requirements, improved hoisting safety and efficiency, and simplified the construction process.

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Figure CN224494849U_ABST

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Abstract

The utility model relates to the field of bridge pier construction, concretely relates to a hollow pier structure, including pier body, apron and pier cap. The inside of pier body is equipped with cavity, the top of pier body is equipped with opening, the opening is through with cavity, and the inner wall on the opening department is equipped with boss;The apron covers the opening and supports on the boss;The apron is prefabricated reinforced concrete component;The pier cap is located the top of apron and pier body. The apron, the boss and the top surface of the pier body are used as the bottom mould of the pier cap, which avoids the need to set up a support inside the pier body to support the wooden mould at the bottom of the pier cap, thereby solving the problems of inconvenience in setting up the support and difficulty in dismantling later.

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