Plug-in type steel pipe concrete column base for large power transmission tower and construction method thereof

A concrete-filled steel tube and plug-in technology, which is applied in the direction of towers, building types, and basic structure engineering, can solve problems such as application obstacles of concrete-filled steel tube towers, large tensile stress of concrete shells, and impacts on construction quality of transmission towers, achieving convenient construction and guarantee Crack resistance, ensuring the effect of stress consistency and balance
CN114396192APending Publication Date: 2022-04-26ANHUI ELECTRIC POWER DESIGN INST CEEC +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI ELECTRIC POWER DESIGN INST CEEC
Publication Date
2022-04-26

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Abstract

The invention belongs to the technical field of concrete-filled steel tubes, and particularly relates to a plug-in concrete-filled steel tube column base for a large power transmission tower and a construction method of the plug-in concrete-filled steel tube column base. The structure comprises a bottom pile foundation anchoring pier, a foundation bearing platform and insertion type steel pipe concrete which are sequentially arranged from bottom to top; a grouting opening is formed by a top pipe opening of the insertion type steel pipe concrete, a pressing plate is coaxially arranged in the grouting opening, an anchor plate is further arranged above the grouting opening, and the anchor plate and the pressing plate are connected through a middle rod. The concrete-filled steel tube column foot further comprises an axial pull rod and a tensioning nut used for tensioning the axial pull rod. The insertion type steel pipe concrete column base has the advantages of being simple in structure, reliable in force transmission, small in occupied space and convenient to construct, and a basic guarantee can be provided for normal and reliable use of the column base. The invention further provides a construction method based on the plug-in concrete-filled steel tube column base, so that the efficiency, accuracy and reliability of construction are practically improved.
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Description

technical field

[0001] The invention belongs to the technical field of steel pipe concrete, and in particular relates to a plug-in steel pipe concrete column base for a large power transmission tower and a construction method thereof. Background technique

[0002] Concrete filled steel pipe is a composite structure formed by pouring concrete inside steel pipes; at this time, the internal concrete is constrained by the external steel pipes, and its compressive performance is significantly improved, while the external steel pipes are laterally supported by internal concrete, and the local stability is significantly improved. Compared with pure steel structures and pure reinforced concrete structures, steel pipe concrete structures have the advantages of high bearing capacity, superior shaping and seismic performance, material saving and simple construction, and have been widely used in recent years. In the construction of transmission towers, the connection construction of the...

Claims

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