CN216713331U - Assembled concrete beam column node structure - Google Patents
Assembled concrete beam column node structure Download PDFInfo
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- CN216713331U CN216713331U CN202123278088.8U CN202123278088U CN216713331U CN 216713331 U CN216713331 U CN 216713331U CN 202123278088 U CN202123278088 U CN 202123278088U CN 216713331 U CN216713331 U CN 216713331U
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Abstract
The utility model discloses an assembled concrete beam column joint structure which comprises a prefabricated upper column, a prefabricated lower column, upper column longitudinal connecting steel bars, lower column longitudinal connecting steel bars, straight threaded sleeves, top positioning steel pipes and bottom positioning steel pipes, wherein the prefabricated upper column and the prefabricated lower column are arranged at intervals up and down so as to form a cast-in-place area between the prefabricated upper column and the prefabricated lower column, the single upper column longitudinal connecting steel bar and the single lower column longitudinal connecting steel bar are in threaded connection with each other through the single straight threaded sleeve, the top positioning steel pipe is embedded into the bottom surface of the prefabricated upper column, the lower part of the bottom positioning steel pipe is embedded into the top surface of the prefabricated lower column, and the upper part of the bottom positioning steel pipe extends out of the prefabricated lower column and is detachably inserted into the top positioning steel pipe. This technical scheme is used for solving the problem that current assembled concrete beam column node department straight thread sleeve is difficult to the butt joint.
Description
Technical Field
The utility model belongs to the technical field of assembly type concrete building engineering, and particularly relates to an assembly type concrete beam column joint structure.
Background
In the fabricated concrete building, the connection mode of the steel bars in the node area mainly comprises three main types of mechanical connection, sleeve grouting connection and slurry anchor lap joint connection. Wherein, the mechanical connection is subdivided into three types of straight thread sleeve connection, taper thread sleeve connection and extrusion sleeve connection. In the traditional cast-in-place concrete building, the steel bars are connected by adopting the straight thread sleeve, so that the cast-in-place concrete building has the advantages of stable and reliable connection quality, convenience and quickness in construction, no need of electricity, all-weather construction and the like, and is one of the most widely applied steel bar connection modes. However, the straight threaded sleeve connection also has the characteristic of high requirement on the centering accuracy of the steel bars, so that the application difficulty of the straight threaded sleeve connection in the fabricated concrete building is greatly increased, because for the fabricated concrete building, the steel bars to be connected are already embedded in the prefabricated components formed by pouring, and if the centering accuracy of the connecting steel bars is required to meet the requirement on the straight threaded sleeve connection, the mounting accuracy of the prefabricated components is required to be improved and ensured as much as possible. However, the precision control of the existing assembly structure is poor, and the problem that the straight thread sleeve is difficult to butt joint exists.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems, the utility model provides an assembly type concrete beam-column joint structure, which aims to solve the problem that straight thread sleeves at the joint of the existing assembly type concrete beam-column are difficult to butt joint, and provides a novel scheme for connecting the beam-column joint by the steel pipe positioning sleeve and the straight thread sleeve, which is suitable for assembly type concrete buildings, so that the centering precision of steel bars to be connected is ensured, and the quick and effective connection of the steel bars for prefabricating an upper-layer column and a lower-layer column is realized.
The utility model provides an assembled concrete beam column joint structure which comprises a prefabricated upper column, a prefabricated lower column, upper column longitudinal connecting steel bars, lower column longitudinal connecting steel bars, straight thread sleeves, top positioning steel pipes and bottom positioning steel pipes, wherein the prefabricated upper column and the prefabricated lower column are arranged at intervals up and down so as to form a cast-in-place area between the prefabricated upper column and the prefabricated lower column, the number of the upper column longitudinal connecting steel bars is multiple, the upper column longitudinal connecting steel bars are vertically arranged in the prefabricated upper column, the bottom end of each upper column longitudinal connecting steel bar is exposed out of the prefabricated upper column and extends into the cast-in-place area, the number of the lower column longitudinal connecting steel bars is multiple, the lower column longitudinal connecting steel bars are vertically arranged in the prefabricated lower column, and the bottom end of each lower column longitudinal connecting steel bar is exposed out of the prefabricated lower column and extends into the cast-in-place area, the single upper-layer column longitudinal connecting steel bar and the single lower-layer column longitudinal connecting steel bar are in threaded connection with each other through the single straight thread sleeve, the top positioning steel pipe is embedded into the bottom surface of the prefabricated upper-layer column, the lower portion of the bottom positioning steel pipe is embedded into the top surface of the prefabricated lower-layer column, and the upper portion of the bottom positioning steel pipe extends out of the prefabricated lower-layer column and is detachably inserted into the top positioning steel pipe.
Furthermore, a plurality of precast beams are arranged on the periphery of the cast-in-place area, beam bottom transverse steel bars are embedded in the precast beams, and the beam bottom transverse steel bars extend into the cast-in-place area and are anchored in a bending mode.
Further, still be provided with the horizontal reinforcing bar of upper strata post in the prefabricated upper strata post, the horizontal reinforcing bar of upper strata post is for with a plurality of the ligature of upper strata post longitudinal connection reinforcing bar forms upper strata post framework of steel reinforcement.
Further, still be provided with the horizontal reinforcing bar of lower floor's post in the prefabricated lower floor's post, the horizontal reinforcing bar of lower floor's post is for with a plurality of the ligature of lower floor's post longitudinal connection reinforcing bar forms lower floor's post steel skeleton.
The prefabricated concrete beam column joint structure is characterized in that a top positioning steel pipe and a bottom positioning steel pipe are respectively arranged in a prefabricated upper column and a prefabricated lower column, when the prefabricated upper column and the prefabricated lower column are positioned and assembled, the top positioning steel pipe of the prefabricated upper column is inserted into the bottom positioning steel pipe of the prefabricated lower column, so that the plane positioning and the elevation positioning of the prefabricated column are realized, more accurate positioning is provided for the butt joint between the longitudinal connecting steel bar of the upper column and the longitudinal connecting steel bar of the lower column, and the dead weight load of the prefabricated column before the strength is formed in a cast-in-place area is borne; meanwhile, the bottom positioning steel pipe penetrates through the whole cast-in-place area, and the effects of enhancing the connection strength of beam column joints and improving the structural reliability can be achieved to a certain extent. Then, the upper-layer column longitudinal connecting reinforcing steel bars and the lower-layer column longitudinal connecting reinforcing steel bars are reliably connected through the straight thread sleeves in a screwing mode, and finally cast-in-place area concrete is poured to form an integral stress structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a fabricated concrete beam-column joint structure.
Detailed Description
The utility model provides a novel steel pipe positioning and straight thread sleeve connecting beam column node scheme suitable for an assembled concrete building, which ensures the centering precision of steel bars to be connected and realizes the quick and effective connection of the steel bars of a prefabricated upper-layer column and a prefabricated lower-layer column.
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the description is only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the utility model discloses an assembly type concrete beam column joint structure, which comprises a prefabricated upper column 1, a prefabricated lower column 9, upper column longitudinal connecting steel bars 2, lower column longitudinal connecting steel bars 4, straight thread sleeves 3, top positioning steel pipes 6 and bottom positioning steel pipes 7, wherein the prefabricated upper column 1 and the prefabricated lower column 9 are arranged at intervals up and down, a cast-in-place area 12 is formed between the prefabricated upper column 1 and the prefabricated lower column 9, the number of the upper column longitudinal connecting steel bars 2 is multiple, the upper column longitudinal connecting steel bars 2 are vertically arranged in the prefabricated upper column 1, the bottom end of the upper column longitudinal connecting steel bar 2 is exposed out of the prefabricated upper column 1 and extends into the cast-in-place area 12, the number of the lower column longitudinal connecting steel bars 4 is multiple, the lower column longitudinal connecting steel bars 4 are vertically arranged in the prefabricated lower column 9, the bottom ends of the lower-layer column longitudinal connecting steel bars 4 are exposed out of the prefabricated lower-layer column 9 and extend into the cast-in-place area 12, the single upper-layer column longitudinal connecting steel bars 2 are in threaded connection with the single lower-layer column longitudinal connecting steel bars 4 through the single straight threaded sleeves 3, the top positioning steel pipe 6 is embedded into the bottom surface of the prefabricated upper-layer column 1, the lower portion of the bottom positioning steel pipe 7 is embedded into the top surface of the prefabricated lower-layer column 9, and the upper portion of the bottom positioning steel pipe 7 extends out of the prefabricated lower-layer column 9 and is detachably inserted into the top positioning steel pipe 6.
The periphery of the cast-in-place area 12 is further provided with a plurality of precast beams 11, longitudinal reinforcing steel bars 10 at the bottom of the beams are embedded in the precast beams 11, and the longitudinal reinforcing steel bars 10 at the bottom of the beams extend into the cast-in-place area 12 and are anchored in a bending mode.
Still be provided with upper strata post horizontal reinforcing bar 5 in the prefabricated upper strata post 1, upper strata post horizontal reinforcing bar 5 is with a plurality of the ligature of upper strata post longitudinal tie reinforcing bar 2 forms upper strata post framework of steel reinforcement.
Still be provided with lower floor's post horizontal reinforcing bar 8 in the prefabricated lower floor's post 9, lower floor's post horizontal reinforcing bar 8 is with a plurality of lower floor's post longitudinal tie reinforcing bar 4 ligature forms lower floor's post steel skeleton.
The assembled concrete beam column joint structure is characterized in that a top positioning steel pipe 6 and a bottom positioning steel pipe 7 are respectively arranged in a prefabricated upper column 1 and a prefabricated lower column 9, when the prefabricated upper column 1 and the prefabricated lower column 9 are positioned and assembled, the bottom positioning steel pipe 7 of the prefabricated lower column 9 is firstly inserted into the top positioning steel pipe 6 of the prefabricated upper column 1, so that the planar positioning and the elevation positioning of the prefabricated upper column 1 are realized, more accurate positioning is provided for the butt joint between the upper column longitudinal connecting steel bar 2 and the lower column longitudinal connecting steel bar 4, and the dead weight load of the prefabricated upper column 1 before the cast-in-place area 12 forms the strength is born; meanwhile, the bottom positioning steel pipe 7 penetrates through the whole cast-in-place area 12, and the effects of enhancing the connection strength of beam-column joints and improving the structural reliability can be achieved to a certain extent. Then, the upper-layer column longitudinal connecting steel bars 2 and the lower-layer column longitudinal connecting steel bars 4 are reliably connected through the straight thread sleeves 3 in a screwing mode, and finally cast-in-place area 12 concrete is poured to form an integral stress structure.
The straight screw sleeve is mainly used for realizing the connection between the adjacent upper-layer column longitudinal connecting reinforcing steel bars 2 and the lower-layer column longitudinal connecting reinforcing steel bars 4 and transferring stress. In this technical scheme, straight thread sleeve 3 needs the secondary to be executed and screwed: primary tightening before prefabrication of the component; and re-tightening during component installation. The specific procedures are as follows:
(1) the prefabricated upper-layer column 1 and the prefabricated lower-layer column 9 are manufactured in a horizontal production mode. When binding the steel bar frameworks of the prefabricated upper-layer column 1 and the prefabricated lower-layer column 9, adopting a straight thread sleeve 3 to connect the upper-layer column longitudinal connecting steel bar 2 and the lower-layer column longitudinal connecting steel bar 4;
(2) in the state of connecting the steel bars, pouring the concrete of the prefabricated upper-layer column 1 and the prefabricated lower-layer column 9, retreating to screw out the straight threaded sleeve 3 after reaching the form removal strength, improving the centering precision of the steel bars through the working procedure, and reducing the internal stress generated by screwing the straight threaded sleeve 3 when the on-site component is installed;
(3) the prefabricated upper-layer column 1 and the prefabricated lower-layer column 9 are transported to a project site, and after the positioning is realized through the top positioning steel pipe 6 and the bottom positioning steel pipe 7 during component installation, the straight thread sleeves 3 are screwed down again, and finally the effective connection of the steel bars is realized.
The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (4)
1. An assembled concrete beam column joint structure is characterized by comprising a prefabricated upper column, a prefabricated lower column, upper column longitudinal connecting steel bars, lower column longitudinal connecting steel bars, straight thread sleeves, a top positioning steel pipe and a bottom positioning steel pipe, wherein the prefabricated upper column and the prefabricated lower column are arranged at intervals up and down so as to form a cast-in-place area between the prefabricated upper column and the prefabricated lower column, the number of the upper column longitudinal connecting steel bars is multiple, the upper column longitudinal connecting steel bars are vertically arranged in the prefabricated upper column, the bottom end of each upper column longitudinal connecting steel bar is exposed out of the prefabricated upper column and extends into the cast-in-place area, the number of the lower column longitudinal connecting steel bars is multiple, the lower column longitudinal connecting steel bars are vertically arranged in the prefabricated lower column, and the bottom end of each lower column longitudinal connecting steel bar is exposed out of the prefabricated lower column and extends into the cast-in-place area, the single upper-layer column longitudinal connecting steel bar and the single lower-layer column longitudinal connecting steel bar are in threaded connection with each other through the single straight thread sleeve, the top positioning steel pipe is embedded into the bottom surface of the prefabricated upper-layer column, the lower portion of the bottom positioning steel pipe is embedded into the top surface of the prefabricated lower-layer column, and the upper portion of the bottom positioning steel pipe extends out of the prefabricated lower-layer column and is detachably inserted into the top positioning steel pipe.
2. An assembled concrete beam column node structure according to claim 1, wherein a plurality of precast beams are further provided at the periphery of the cast-in-place region, and beam bottom longitudinal reinforcing steel bars are embedded in the precast beams, extend into the cast-in-place region, and are bent and anchored.
3. An assembled concrete beam column node structure according to claim 1, wherein upper column transverse steel bars are further arranged in the prefabricated upper column, and the upper column transverse steel bars are bound with a plurality of upper column longitudinal connecting steel bars to form an upper column steel bar framework.
4. The assembled concrete beam column joint structure of claim 1, wherein a lower column transverse steel bar is further arranged in the prefabricated lower column, and the lower column transverse steel bar is bound with a plurality of the lower column longitudinal connecting steel bars to form a lower column steel bar skeleton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123278088.8U CN216713331U (en) | 2021-12-23 | 2021-12-23 | Assembled concrete beam column node structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123278088.8U CN216713331U (en) | 2021-12-23 | 2021-12-23 | Assembled concrete beam column node structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216713331U true CN216713331U (en) | 2022-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123278088.8U Active CN216713331U (en) | 2021-12-23 | 2021-12-23 | Assembled concrete beam column node structure |
Country Status (1)
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|---|---|
| CN (1) | CN216713331U (en) |
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2021
- 2021-12-23 CN CN202123278088.8U patent/CN216713331U/en active Active
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