Prefabricated stiff concrete-filled steel tube and reinforced concrete assembled pier and construction process thereof

Abstract

Disclosed are a prefabricated stiff concrete-filled steel tube and a reinforced concrete assembled bridge pier which are respectively in two forms of connecting with a grouting sleeve connector and aconnecting steel plate. The assembled pier connected with the grouting sleeve connector comprises a first bottom section, a first middle section, a first top section, a foundation and a bent cap. Theassembled pier connected through the connecting steel plates comprises a second bottom section, a second middle section, a second top section, a foundation and a bent cap. The invention relates to a construction process thereof. The construction process comprises the following steps: step 1, component manufacturing: manufacturing a first bottom section, a first middle section, a first top section,a foundation and a bent cap or a second bottom section, a second middle section, a second top section, a foundation and a bent cap; step 2, mounting components. The connecting technology of the prefabricated sections and the foundation, the connecting technology of the prefabricated sections and the connecting technology of the prefabricated sections and the bent cap are designed, it is guaranteed that all the prefabricated parts are connected into a whole, and the structure is jointly stressed and deformed harmoniously.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a bridge pier assembled with prefabricated steel tube concrete and reinforced concrete and a construction process. Background technique [0002] The pier column of the bridge substructure is the main force-bearing component of the bridge. In addition to sufficient compressive, bending, shearing and good durability, it must also have good seismic ductility and energy dissipation capacity. At present, most of the piers and columns in bridges at home and abroad adopt cast-in-place concrete structures. The construction of cast-in-place concrete requires many on-site construction procedures, which are time-consuming and which can negatively affect the traffic flow, the environment and the safety of the work area, especially in terms of the construction environment, construction space, climatic conditions and environmental protection conditions Under the constra...

AI Technical Summary

Problems solved by technology

This type of bridge pier has the advantages of fast construction speed, high bearing capacity, and good seismic performance. However, because the steel pipes in the steel pipe concrete at the bottom are exposed to the natural environment, especially when used in bridges, they will be threatened by steel pipe corrosion and require long-term maintenance.

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