A kind of reinforced concrete superimposed primary and secondary beam connecting node and its construction method
A technology for connecting reinforced concrete and connecting nodes, which is applied in the direction of building and building structure, etc., can solve the problems of time-consuming concrete pouring, difficult prefabrication, insufficient joint protruding parts and structural safety, etc.
Active Publication Date: 2022-07-05
GUANGZHOU METRO DESIGN & RES INST
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Problems solved by technology
[0003] The precast concrete composite primary and secondary beam joints in the prior art have the following problems: (1) It is necessary to accurately determine the position of the reserved steel bars, etc., and the prefabrication is difficult; (2) The positioning and hoisting of the components during installation is difficult and the concrete pouring is time-consuming Longer; (3) Formwork is still required during component installation and node pouring, which does not significantly reduce the construction period and labor costs; (4) The possibility of protruding parts of nodes and insufficient structural safety
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[0028] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.
[0029] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. are based on those shown in the accompanying drawings The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. It should be understood that the terms "first", "second", etc....
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The invention discloses a reinforced concrete superimposed primary and secondary beam connecting node and a construction method thereof, comprising a primary beam, a secondary beam and a connecting steel plate; a plurality of tension bolts are transversely penetrated in the primary beam, and the primary beams are opposite to each other. Both sides are fitted with a pair of tensile steel plates installed on the tie bolts; the connecting steel plates include a fixedly connected bottom plate and a vertical plate vertically arranged on the bottom plate, and both the bottom plate and the vertical plate are vertically arranged. On the corresponding pair of tensile steel plates, baffles are arranged on the bottom plate and the vertical plates are parallel and spaced apart; I-shaped steels are pre-embedded in the secondary beams, and the I-shaped steels have ends extending to the secondary beams. The outer end plate, the end plate is inserted in the interval between the vertical plate and the baffle plate; the vertical plate, the baffle plate and the end plate are all provided with a plurality of bolt holes. The reinforced concrete superimposed primary and secondary beam connecting nodes of the invention have reasonable structural design, quick installation and positioning, simple construction technology, no need for support, and high structural safety.
Description
technical field [0001] The invention relates to the technical field of construction engineering, in particular to a reinforced concrete superimposed primary and secondary beam connecting node and a construction method thereof. Background technique [0002] Prefabricated concrete structure is a structural system formed by assembling or connecting precast concrete components as the main force-bearing components. In the existing prefabricated concrete structure system, the connection method and construction method of the nodes are important key points. In the current code and atlas, the methods of precast concrete superimposed primary and secondary beam joints mainly include the following: (1) reserved gap connection. A cast-in-place section is reserved in the middle of the prefabricated main beam, the bottom reinforcement is continuous, and the bottom reinforcement of the prefabricated secondary beam extends from the end face to the vacant section of the prefabricated main be...
Claims
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IPC IPC(8): E04B1/20E04B1/21
CPCE04B1/20E04B1/21
Inventor 李昂史海欧肖鹏农兴中王建黎俊业崔忠乾陈永亮
Owner GUANGZHOU METRO DESIGN & RES INST