Prestressed fabricated high-performance reinforced concrete beam-column joint and construction method thereof

Abstract

The invention discloses a prestressed fabricated high-performance reinforced concrete beam-column joint. The joint comprises a concrete column, a reinforced concrete beam and a prestressed tendon. Matched prestressed tendon ducts are arranged inside the concrete column and the reinforced concrete beam respectively. The interior of the concrete column and the interior of the reinforced concrete beam are connected through the prestressed tendon penetrating through the prestressed tendon ducts. The exterior of the concrete column and the exterior of the reinforced concrete beam are connected through angle iron. A method comprises the main construction steps of 1 manufacturing the concrete filled steel tubular column, 2 manufacturing the concrete beam and 3 performing on-site installation. Compared with a common beam column joint, the fabricated joint has the advantages of being good in ductility, easy and convenient to construct, capable of easily replacing components, good in anti-seismic property and the like.

Description

technical field [0001] The invention relates to a novel beam-column joint structure, in particular to a prestressed assembled high-performance reinforced concrete beam-column joint and a construction method thereof. Background technique [0002] In the earthquake disasters over the years, the damage of the joint core area is the main form of frame structure earthquake damage. Therefore, it is of great significance to study the connection form of beam-column joints and improve its seismic performance to strengthen the overall performance and seismic performance of the structure. Only through design and construction, the strength and ductility of joints can be improved, and the shear and compression brittle failure of joints can be prevented earlier than the failure of beams and columns. The strength design of other components can have practical significance, and the safety and stability of the entire structure can be guaranteed. [0003] At present, traditional reinforced co...

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Problems solved by technology

Although this connection form is convenient for construction, if the construction method is incorrect or the technology is not exquisite during the construction process, it is often difficult to ensure the strength of the joints and the transfer of loads between beams and columns.

At the same time, these two types of traditional joint forms are all rigid connection methods, which limit the relative displacement in the joint. The rigidity is high, but the ductility is poor, and the seismic action cannot be effectively consumed. The beams and columns are often destroyed before the beams and columns, which cannot meet the requirements of "strong joints". node" requirements

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