Prestressed fabricated high-performance reinforced concrete beam-column joint and construction method thereof
A technology of reinforced concrete beams and reinforced concrete, applied in protective buildings/shelters, processing of building materials, construction, etc., can solve the problem of difficulty in ensuring joint strength and load transfer between beams and columns, inability to effectively consume earthquake action, Incorrect construction methods and other problems, to achieve the effect of easy quality control, improved ductility, and improved construction efficiency
Inactive Publication Date: 2017-05-31
WUHAN UNIV
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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
Method used
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Embodiment 1
[0033] a Before pouring the concrete column, four steel plates with a thickness greater than 4mm are arranged on all sides of the connection between the column and the reinforced concrete beam, and the length of the four steel plates is greater than the height of the beam h 2 +80mm, the width is determined by the section size of the column, and the width of the two steel plates is the same as the section size of the reinforced concrete column b 1 The same, the width of the two steel plates is the same as the section size of the reinforced concrete column h 1 The same; the short steel bars directly larger than 12mm are used to connect the two opposite steel plates by welding, the number of short steel bars is not less than 3 layers, and each layer is not less than 2; no less than 2 prefabricated steel bars are reserved in the connection area with the reinforced concrete beam. Stress tendon channels are symmetrically arranged up and down. When the number of reserved prestress...
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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...
Claims
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Patent Timeline
Login to view more IPC IPC(8): E04B1/58E04G21/00E04B1/98E04H9/02
CPCE04B1/5831E04G21/00E04H9/02
Inventor 李杉刘真真卢亦焱邱剑祝涛胡霁月李伟捷唐文水
Owner WUHAN UNIV
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