CN215166489U - Prefabricated column and prefabricated beam connected assembled node structure - Google Patents

Prefabricated column and prefabricated beam connected assembled node structure Download PDF

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Publication number
CN215166489U
CN215166489U CN202120678271.8U CN202120678271U CN215166489U CN 215166489 U CN215166489 U CN 215166489U CN 202120678271 U CN202120678271 U CN 202120678271U CN 215166489 U CN215166489 U CN 215166489U
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steel
plate
prefabricated
welded
connecting plate
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CN202120678271.8U
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戎贤
张健新
张标
刘平
李艳艳
张晓巍
丁传林
王超
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Hebei University of Technology
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Hebei University of Technology
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Abstract

The utility model provides an assembled node structure that prefabricated post and precast beam are connected for solve the not high problem of assembled node structure shear resistance. Three vertical steel plates are embedded in a prefabricated column of the assembled node structure to form an H-shaped cross section, a stiffening structure is arranged between the parallel vertical steel plates, the vertical steel plates are arranged at the end parts of the prefabricated beam, the horizontal steel plates are welded at the upper end and the lower end of one side of each steel plate, longitudinal ribs are welded on the horizontal steel plates to complete the prefabrication of the beam, I-shaped steel is welded at the other side of each steel plate, and the I-shaped steel is connected with the steel ribs of the column through connecting plates. The utility model adopts the connection mode of the steel structure, the efficiency is high, the assembly of the node connection form is simple, no field wet operation is needed, meanwhile, the precast columns and the precast beams are respectively concrete members pre-embedded with steel frameworks, and the prefabricated beam has no abnormal shape and is easy to transport in batches; the assembled node structure increases the shear-resistant bearing capacity of the node core area on the premise of following the design principle of the strong column and the weak beam.

Description

Prefabricated column and prefabricated beam connected assembled node structure
Technical Field
The utility model belongs to the assembly type structure field, concretely relates to assembled node structure that prefabricated post and precast beam are connected.
Background
In the assembly type building construction, the prefabrication of relevant components such as columns, beams and the like is generally completed in a factory, and then the prefabricated components are transported to a construction site for assembly and construction. The existing prefabricated columns and prefabricated beams usually reserve connecting ribs during prefabrication, and are lapped with the columns and then cast with concrete. However, the prefabricated column or the prefabricated beam is provided with a plurality of bulges because the reserved part is exposed outside, so that the prefabricated column or the prefabricated beam is high in transportation requirement and inconvenient to transport.
Meanwhile, when assembling the beam column, in order to ensure that the stability, the safety and other performances of the building reach the standard, attention needs to be paid to whether the node meets the corresponding mechanical performance requirement. For example, in the event of an earthquake, the structure is required to have corresponding shear and bending resistance at the node due to shear failure caused by seismic waves. Therefore, in fabricated buildings, there is a need to continuously improve the performance of the node structure through optimization of the structure or the connection manner.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defect among the prior art or not enough, the utility model aims at providing an assembled node structure that prefabricated post and precast beam are connected sets up stiffening structure in the steel skeleton of prefabricated post, sets up the I-steel at the tip of precast beam, accomplishes the connection of node through the steel construction of beam column, improves the anti bearing capacity of cutting of node nuclear zone.
In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:
the embodiment of the utility model provides an assembled node structure that precast post and precast beam are connected, the precast post includes isometric first pre-buried vertical steel sheet and second pre-buried vertical steel sheet, the welding has the third pre-buried vertical steel sheet in the middle of first pre-buried vertical long steel sheet and second pre-buried vertical long steel sheet, and the third pre-buried vertical steel sheet is perpendicular to first pre-buried vertical steel sheet and second pre-buried vertical steel sheet and isometric with the two, connects two vertical steel sheets together and forms H shape cross-section; horizontal stiffening steel plates are arranged between the first pre-buried vertical steel plate and the second pre-buried vertical steel plate and on two sides of the third pre-buried vertical steel plate at equal intervals, and a plurality of longitudinal rib through holes are formed in each stiffening steel plate;
the end part of the precast beam is provided with a vertical end plate, and the section of the vertical end plate is the same as that of the beam; two horizontal steel plates are welded at the upper end and the lower end of one side of the vertical end plate facing the inside of the beam and are respectively parallel to the upper surface and the lower surface of the beam, and longitudinal steel bars of the beam are welded on the inner sides of the horizontal steel plates; horizontal shear-resistant studs are welded between the two horizontal steel plates and inside the vertical end plates.
The outer sides of the middles of the first embedded vertical long steel plate and the second embedded vertical long steel plate of the precast column are respectively welded with an upper flange connecting plate, a lower flange connecting plate and a web connecting plate, and the outer side of a vertical end plate of the precast beam is welded with I-shaped steel; the upper flange connecting plate and the lower flange connecting plate of the prefabricated column are respectively welded with the upper flange and the lower flange of the I-shaped steel welded on the end plate of the prefabricated beam or connected through bolts; and the web connecting plate of the prefabricated column is welded with the I-shaped steel web of the prefabricated beam or is connected with the I-shaped steel web of the prefabricated beam through a bolt.
In the scheme, the upper flange connecting plate of the prefabricated column is horizontally welded on the outer side of the vertical steel plate, and the width of the upper flange connecting plate is the same as that of the upper flange of the I-shaped steel; the lower flange connecting plate is horizontally welded to the outer side of the vertical steel plate, is parallel to the upper flange connecting plate, and has the same width as the lower flange of the I-shaped steel; the web connecting plate is vertically welded between the upper flange connecting plate and the lower flange connecting plate and corresponds to a web of the I-shaped steel.
In the scheme, bolt holes are formed in the upper flange connecting plate, the lower flange connecting plate and the web connecting plate, and corresponding bolt holes are formed in the upper flange, the lower flange and the web of the I-steel; and in the corresponding bolt holes, the through bolts complete the connection between the prefabricated columns and the prefabricated beams.
In the scheme, the upper flange connecting plate is as thick as the upper flange of the I-shaped steel, the lower flange connecting plate is as thick as the lower flange of the I-shaped steel, and the web connecting plate is as thick as the web of the I-shaped steel.
The embodiment of the utility model provides a technical scheme has following beneficial effect:
the utility model provides an assembled node structure that prefabricated post and precast beam are connected, set up stiffening structure in the steel skeleton of prefabricated post, set up vertical steel sheet at the tip of prefabricated beam, both ends welding horizontal steel sheet about one side of steel sheet, weld the prefabrication that the roof beam was accomplished to the longitudinal reinforcement again on horizontal steel sheet, weld the I-steel at the steel sheet opposite side, connect through the connecting plate with the steel skeleton of post through the I-steel, adopt the connected mode of steel construction when the assembly, high efficiency, the node connection form assembly is simple, no on-the-spot wet work, and simultaneously, prefabricated post and prefabricated beam are the concrete component that has the steel skeleton in advance respectively, and is free from the deformity, easy bulk transport; the assembled node structure ensures the continuity of longitudinal steel bars in the beam, can effectively ensure weak components and strong nodes, and on the premise of following the design principle of a strong column and a weak beam, the shear force transmission at the joint of the beam and the column is borne by the shear-resistant studs and the two horizontal steel plates, and finally the shear force of the left beam end and the right beam end is transmitted to the I-steel in the core area, so that the I-steel and the embedded steel framework in the column form a whole, and the shear-resistant bearing capacity of the core area of the node is increased.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic diagram of a steel bone structure in a prefabricated column of an assembled node structure provided by an embodiment of the present invention;
fig. 2 is a schematic structural view of a precast beam end of an assembled node structure provided by an embodiment of the present invention;
fig. 3 is a beam column connection schematic diagram of an assembled node structure provided by the utility model.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The embodiment of the utility model provides an assembled node structure that prefabricated post and precast beam are connected, through assembled node structure accomplishes the connection of prefabricated post and precast beam.
Fig. 1 shows a schematic diagram of a prefabricated column structure of the fabricated node structure provided by the present embodiment. As shown in fig. 1, the precast column includes a first embedded vertical steel plate 101 and a second embedded vertical steel plate 102 which are equal in length, a third embedded vertical steel plate 103 is welded between the first embedded vertical steel plate 101 and the second embedded vertical steel plate 102, the third embedded vertical steel plate 103 is perpendicular to the first embedded vertical steel plate 101 and the second embedded vertical steel plate 102 and is equal in length to the first embedded vertical steel plate and the second embedded vertical steel plate 102, and the two vertical steel plates are connected together to form an H-shaped cross section; between the pre-buried vertical steel sheet of first pre-buried vertical steel sheet and second, the both sides of the pre-buried vertical steel sheet of third are equidistant to be provided with horizontal stiffening steel sheet 104, it crosses hole 105 to have seted up a plurality of muscle of indulging on the stiffening steel sheet 104. The steel skeleton of the prefabricated column is formed by three vertical steel plates and a stiffening steel plate.
Fig. 2 shows a schematic diagram of a precast beam structure of the fabricated node structure provided by the present embodiment. As shown in fig. 2, the end of the precast beam is provided with a vertical end plate 201, and the vertical end plate 201 has the same cross section as the beam; two horizontal steel plates 202 and 203 are welded at the upper end and the lower end of one side of the vertical end plate 201 facing the inside of the beam and are respectively parallel to the upper surface and the lower surface of the beam, and longitudinal steel bars 204 of the beam are welded on the inner sides of the horizontal steel plates; horizontal shear-resistant studs 205 are welded between the two horizontal steel plates and inside the vertical end plates.
Fig. 3 is a beam column connection schematic diagram of an assembled node structure provided by the utility model. Based on the connection of above-mentioned precast column and precast beam, the assembled node structure that this embodiment provided, the middle outside of the pre-buried vertical long steel sheet of first pre-buried vertical long steel sheet of precast column and the pre-buried vertical long steel sheet of second has welded upper and lower flange connecting plate 301, 302 and web connecting plate 303 respectively, has welded I-steel 304 in the outside of the vertical end plate of precast beam. The upper flange connecting plate and the lower flange connecting plate of the prefabricated column are respectively welded with the upper flange and the lower flange of the I-shaped steel welded on the end plate of the prefabricated beam or connected through bolts; and the web connecting plate of the prefabricated column is welded or connected with the I-shaped steel web of the prefabricated beam through a bolt, so that a complete node structure is formed.
An upper flange connecting plate of the prefabricated column is horizontally welded on the outer side of the vertical steel plate, and the width of the upper flange connecting plate is the same as that of the upper flange of the I-shaped steel; the lower flange connecting plate is horizontally welded to the outer side of the vertical steel plate, is parallel to the upper flange connecting plate, and has the same width as the lower flange of the I-shaped steel; the web connecting plate is vertically welded between the upper flange connecting plate and the lower flange connecting plate and corresponds to a web of the I-shaped steel.
Preferably, the upper flange connecting plate, the lower flange connecting plate and the web connecting plate are provided with bolt holes, and the upper flange, the lower flange and the web of the I-steel are provided with corresponding bolt holes; and in the corresponding bolt holes, the through bolts complete the connection between the prefabricated columns and the prefabricated beams.
Preferably, the upper flange connecting plate and the upper flange of the I-shaped steel are equal in thickness, the lower flange connecting plate and the lower flange of the I-shaped steel are equal in thickness, and the web connecting plate and the web of the I-shaped steel are equal in thickness.
When the prefabricated column and the prefabricated beam are adopted to form a node structure in the fabricated building, if an earthquake occurs, bending moment and shearing force can be generated at the beam end. The beam end bending moment is borne by the longitudinal steel bars, the beam end longitudinal steel bars are welded with the upper flange and the lower flange of the I-shaped steel, and the bending horizontal force of the longitudinal steel bars is transmitted to the node core area through the upper flange and the lower flange of the I-shaped steel; through setting up the riser in node core area, strengthen core area shear force, resist beam-ends moment of flexure. The shear force of the beam end is mainly born through transverse stirrups in the beam, and the shear force transmission at the joint of the beam column is mainly born through shear-resistant studs and I-shaped steel webs; finally, the shear force of the left beam end and the right beam end is transmitted to the I-shaped steel beam in the core area, the I-shaped steel and the column form an integral steel rib, and the shearing resistance bearing capacity of the core area of the node is increased.
Therefore, the assembly type node structure provided by the embodiment has the advantages that the assembly construction is simple when the nodes are connected, no field wet operation exists, and the construction efficiency is high; the continuity of longitudinal steel bars is guaranteed in the precast beam, and on the premise of guaranteeing the design principles of strong nodes, weak members, strong columns and weak beams, the shear-resisting bearing capacity of the core area of the node structure is improved, and the mechanical property of the node structure is improved; meanwhile, the precast columns and the precast beams are respectively concrete beams with pre-embedded steel frameworks, and the precast columns and the precast beams are free of protrusion and convenient to transport.
The above description is only a preferred embodiment of the invention and is intended to illustrate the technical principles applied. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features and (but not limited to) technical features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.

Claims (4)

1. An assembled node structure for connecting a precast column and a precast beam is characterized in that,
the prefabricated column comprises a first embedded vertical steel plate and a second embedded vertical steel plate which are equal in length, a third embedded vertical steel plate is welded between the first embedded vertical long steel plate and the second embedded vertical long steel plate, the third embedded vertical steel plate is perpendicular to the first embedded vertical steel plate and the second embedded vertical steel plate and is equal in length to the first embedded vertical steel plate and the second embedded vertical steel plate, and the two vertical steel plates are connected together to form an H-shaped cross section; horizontal stiffening steel plates are arranged between the first pre-buried vertical steel plate and the second pre-buried vertical steel plate and on two sides of the third pre-buried vertical steel plate at equal intervals, and a plurality of longitudinal rib through holes are formed in each stiffening steel plate;
the end part of the precast beam is provided with a vertical end plate, and the section of the vertical end plate is the same as that of the beam; two horizontal steel plates are welded at the upper end and the lower end of one side of the vertical end plate facing the inside of the beam and are respectively parallel to the upper surface and the lower surface of the beam, and longitudinal steel bars of the beam are welded on the inner sides of the horizontal steel plates; horizontal shear-resistant studs are welded between the two horizontal steel plates and inside the vertical end plates.
The outer sides of the middles of the first embedded vertical long steel plate and the second embedded vertical long steel plate of the precast column are respectively welded with an upper flange connecting plate, a lower flange connecting plate and a web connecting plate, and the outer side of a vertical end plate of the precast beam is welded with I-shaped steel; the upper flange connecting plate and the lower flange connecting plate of the prefabricated column are respectively welded with the upper flange and the lower flange of the I-shaped steel welded on the end plate of the prefabricated beam or connected through bolts; and the web connecting plate of the prefabricated column is welded with the I-shaped steel web of the prefabricated beam or is connected with the I-shaped steel web of the prefabricated beam through a bolt.
2. Fabricated node structure according to claim 1,
an upper flange connecting plate of the prefabricated column is horizontally welded on the outer side of the vertical steel plate, and the width of the upper flange connecting plate is the same as that of the upper flange of the I-shaped steel; the lower flange connecting plate is horizontally welded to the outer side of the vertical steel plate, is parallel to the upper flange connecting plate, and has the same width as the lower flange of the I-shaped steel; the web connecting plate is vertically welded between the upper flange connecting plate and the lower flange connecting plate and corresponds to a web of the I-shaped steel.
3. The fabricated node structure of claim 2, wherein the upper flange connecting plate, the lower flange connecting plate and the web connecting plate are provided with bolt holes, and the upper flange, the lower flange and the web of the i-steel are provided with corresponding bolt holes; and in the corresponding bolt holes, the through bolts complete the connection between the prefabricated columns and the prefabricated beams.
4. The fabricated node structure of claim 2, wherein the upper flange attachment plate is the same thickness as an upper flange of an i-beam, the lower flange attachment plate is the same thickness as a lower flange of an i-beam, and the web attachment plate is the same thickness as a web of an i-beam.
CN202120678271.8U 2021-04-02 2021-04-02 Prefabricated column and prefabricated beam connected assembled node structure Active CN215166489U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120678271.8U CN215166489U (en) 2021-04-02 2021-04-02 Prefabricated column and prefabricated beam connected assembled node structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120678271.8U CN215166489U (en) 2021-04-02 2021-04-02 Prefabricated column and prefabricated beam connected assembled node structure

Publications (1)

Publication Number Publication Date
CN215166489U true CN215166489U (en) 2021-12-14

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Application Number Title Priority Date Filing Date
CN202120678271.8U Active CN215166489U (en) 2021-04-02 2021-04-02 Prefabricated column and prefabricated beam connected assembled node structure

Country Status (1)

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