Tubular concrete bridge pier

Abstract

The invention provides a tubular concrete bridge pier in order to overcome the defects of an existing reinforced concrete bridge pier. The tubular concrete bridge pier is composed of a pier column lower end joint section body, more than one pier column standard joint section body and a pier column upper end joint section body. The pier column lower end joint section body is placed on a foundation, the upper end of the pier column lower end joint section body is connected with the lower end of the pier column standard joint section body, and the upper end of the pier column standard joint section body is connected with the lower end of the pier column upper end joint section body. The tubular concrete bridge pier has the advantages that the using amount of concrete is reduced compared with the using amount of the concrete of a traditional solid bridge pier, the economy is improved, and meanwhile the demand for energy conservation and emission reduction is met; a pre-tensioning method prestress component is used, so that the anti-cracking performance of pier columns is effectively improved; steel components are used between bridge pier joint sections, and the safety of bridge pier structures under the earthquake action can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of construction, in particular to tubular concrete bridge piers. Background technique [0002] In highways (including expressways, first-class highways and low-grade highways) and municipal roads, bridges with medium and small spans mostly use circular reinforced concrete piers, which have the advantages of simple construction, mature construction technology, and beautiful appearance. Therefore, It is widely used in medium and small span bridges. However, most of the existing circular bridge piers adopt solid circular cross-sections, and the concrete generally adopts non-high-strength concrete, and the amount of concrete materials is relatively large. The on-site cast-in-place construction period is relatively long, and it will also cause certain damage to the surrounding environment. At the same time, in the long-term use, there are also some common engineering defects, mainly including: ①The pier body is...

AI Technical Summary

Problems solved by technology

However, most of the existing circular bridge piers use solid circular cross-sections, and the concrete generally uses non-high-strength concrete, and the amount of concrete materials is relatively large

The on-site cast-in-place construction period is relatively long, and it will also cause certain damage to the surrounding environment

At the same time, in the long-term use, there are also some common engineering defects, mainly including: ①The pier body is cracked; ②The construction technology does not meet the requirements of the specification, and the overall deviation of the steel skeleton causes the concrete protective layer to be too thin, and the steel bars of the pier column are exposed and corroded;

[0003] For post-tensioned prestressed bridge piers, the requirements for segmental indirect joints are relatively high, and small deviations between joints can cause the deviation of the top of the pier to exceed the allowable value, and post-tensioning requires a large operating space. The process is more complicated

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