A column-beam connection node structure of a basement frame

Abstract

The utility model discloses a column and beam connecting joint structure of basement frame, including stand and prefabricated beam, the edge of stand top is provided with vertical reinforcement that projects, the periphery of vertical reinforcement is detachably provided with stand stirrup, the inside of prefabricated beam is equipped with horizontal reinforcement and crossbeam stirrup, the end of every prefabricated beam is equipped with the horizontal stirrup of can around vertical reinforcement, four horizontal stirrups of prefabricated beam end portion are arranged staggeredly on the periphery of vertical reinforcement, and the end of four prefabricated beams is equipped with the post-pouring groove of up and down through arrangement, the crossbeam stirrup is exposed arrangement at post-pouring groove, is equipped with horizontal tie structure in post-pouring groove, and the both ends of horizontal tie structure are detachable connection with crossbeam stirrup at post-pouring groove, vertical reinforcement on stand respectively. The utility model belongs to building engineering technical field, and the existing problem that the assembly type beam column node structure does not exist firm connection is solved.

Description

Technical Field

[0001] This application relates to the field of building engineering technology, and in particular to a column-beam connection node structure for a basement frame. Background Technology

[0002] In residential building construction, beam-column joints are a crucial component of the frame structure. To improve construction efficiency, prefabricated beams and columns are used for basement construction. However, existing technologies, such as the prefabricated steel-concrete beam-column joint disclosed in Chinese Patent CN218148861U, which uses an upper connecting plate, lower connecting plate, U-shaped channel steel, and high-strength bolts to install and fix the prefabricated beam onto the prefabricated column, are simple and convenient to assemble. However, because the upper connecting plate, lower connecting plate, U-shaped channel steel, and high-strength bolts are made of steel, in the humid climate of southern regions where the weather is consistently damp, there is a risk of bolts loosening and steel plates rusting. This results in a weak connection, poor stability, and an inability to guarantee the service life of the beam-column joint, ultimately affecting the stability and safety of the entire building. Utility Model Content

[0003] To address the above shortcomings, the purpose of this utility model is to provide a column-beam connection node structure for a basement frame, which solves the problem of unstable connection in existing prefabricated beam-column node structures.

[0004] To achieve the above objectives, this utility model provides a column-beam connection node structure for a basement frame, including columns and precast beams. The top of the column can support the ends of four precast beams. Vertical reinforcing bars protrude from the edge of the top of the column, and column stirrups are detachably provided around the vertical reinforcing bars. Horizontal reinforcing bars and beam stirrups are provided inside the precast beams. Each end of the precast beam is provided with horizontal stirrups that can surround the vertical reinforcing bars. The horizontal stirrups are connected to the vertical reinforcing bars. The horizontal stirrups at the ends of the four precast beams are staggered vertically around the vertical reinforcing bars. The ends of the four precast beams are provided with vertically penetrating post-cast grooves. The beam stirrups are exposed at the post-cast grooves. Horizontal tie structures are provided inside the post-cast grooves. The two ends of the horizontal tie structures are detachably connected to the beam stirrups at the post-cast grooves and the vertical reinforcing bars on the columns, respectively.

[0005] As a preferred technical solution of this utility model, the transverse tie rod structure includes an upright and a tie rod. The upright is provided with hooks at both ends that are connected to the stirrups of the crossbeam. One end of the tie rod is provided with a pull ring that is connected to the vertical steel bar. The other end of the tie rod is provided with a locking structure between it and the upright.

[0006] As a preferred embodiment of this utility model, the locking structure includes a vertical sliding groove provided on the upright and a screw part provided at the other end of the pull rod, and a locking nut is provided on the screw part.

[0007] As a preferred embodiment of this utility model, the horizontal stirrups are U-shaped stirrup structures that connect with the transverse reinforcing bars on both sides of the precast beam.

[0008] As a preferred embodiment of this utility model, the two ends of the U-shaped hoop structure are rotatably fitted with threaded sleeves, and the ends of the transverse reinforcing bars are provided with external threaded sections that connect with the threaded sleeves.

[0009] As a preferred technical solution of this utility model, the inner wall of the threaded sleeve is provided with a limiting boss, and both ends of the U-shaped hoop structure are provided with limiting flanges that are adapted to the end faces of the limiting boss.

[0010] As a preferred technical solution of this utility model, the connection between the threaded sleeve and the transverse reinforcing bar, as well as the connection between the threaded sleeve and both ends of the U-shaped hoop structure, are provided with welds for welding and fixing.

[0011] Compared with existing technologies, this utility model has the following beneficial effects:

[0012] (1) The column-beam connection node structure of the basement frame of this utility model is provided with horizontal stirrups at the end of the precast beam that are connected to the vertical steel bars at the top of the column 1. The horizontal stirrups can provide a tensile force, making the connection between the precast beam and the column 1 more secure.

[0013] (2) The column-beam connection node structure of the basement frame of this utility model is provided with a post-cast groove on the precast beam. A horizontal tie bar structure is provided in the post-cast groove and connected to the vertical steel bar at the top of the column. The horizontal tie bar structure can provide another tension, making the connection between the precast beam and the column more solid.

[0014] (3) The column-beam connection node structure of the basement frame of this utility model is hardened by pouring concrete into a pouring groove formed by the post-pouring groove on the precast beam and the ends of the four precast beams and the top of the column, which ensures that the connection between the precast beam and the column is more firm and reliable and has good safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural view of the column-beam connection node structure of the basement frame of this utility model;

[0017] Figure 2 This is a structural front view of the column-beam connection node structure of the basement frame of this utility model;

[0018] Figure 3 This is a top view of the column-beam connection node structure of the basement frame of this utility model;

[0019] Figure 4 This is an enlarged three-dimensional view of the precast beam structure in this utility model;

[0020] Figure 5 This is an enlarged top view of the precast beam structure in this utility model;

[0021] Figure 6 This is an enlarged sectional view of the structure connecting the horizontal stirrups and the transverse reinforcing bars in this utility model;

[0022] Figure 7 This is an enlarged schematic diagram of the transverse tie structure in this utility model;

[0023] Figure 8 This is an exploded view of the assembly of the column and the precast beam in this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Column; 2. Precast beam; 3. Vertical reinforcement; 4. Column stirrup; 5. Horizontal reinforcement; 6. Beam stirrup; 7. Horizontal stirrup; 8. Post-cast groove; 9. Horizontal tie structure; 10. External threaded section; 11. Upright pole; 12. Tie rod; 13. Hook; 14. Pull ring; 15. Vertical slide groove; 16. Screw section; 17. Locking nut; 18. Screw sleeve; 19. Limiting boss; 20. Limiting flange. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below. Embodiments of this utility model will now be described based on its overall structure.

[0026] Reference Figures 1-8As shown, this embodiment provides a column-beam connection node structure for a basement frame, including a column 1 and a precast beam 2. The top of the column 1 can support the ends of four precast beams 2. The ends of the four precast beams 2 are placed at the edges of the four sides of the column 1. Vertical steel bars 3 protrude from the edge of the top of the column 1. Column stirrups 4 are detachably provided around the vertical steel bars 3.

[0027] The precast beam 2 is equipped with transverse steel bars 5 and crossbeam stirrups 6. The ends of two oppositely arranged transverse steel bars 5 protrude from the end face of the precast beam 2. The crossbeam stirrups 6 are arranged around the transverse steel bars 5 and are tied to the transverse steel bars 5 with wire. Each precast beam 2 has a horizontal stirrup 7 at its end that can surround the vertical steel bar 3. The horizontal stirrup 7 can be tied to the vertical steel bar 3 with wire. The horizontal stirrups 7 at the ends of the four precast beams 2 are staggered around the vertical steel bar 3. The four precast beams 2 are hoisted onto two columns 1 in sequence. The two columns 1 support the two ends of the precast beams 2. During hoisting, the column stirrups 4 are manually tied to the outside of the vertical steel bar 3 with wire, so that the column stirrups 4 are also staggered from the horizontal stirrups 7. This way, the multiple column stirrups 4 and the horizontal stirrups 7 of the four precast beams 2 are evenly arranged around the vertical steel bar 3.

[0028] The ends of the four precast beams 2 are provided with a vertically extending post-cast groove 8. The crossbeam stirrups 6 are exposed at the post-cast groove 8. The post-cast groove 8 is provided with a transverse tie structure 9. The two ends of the transverse tie structure 9 are detachably connected to the crossbeam stirrups 6 at the post-cast groove 8 and the vertical steel bars 3 on the column 1, respectively. After the four precast beams 2 are hoisted onto the column 1, the transverse tie structure 9 is installed between the crossbeam stirrups 6 and the vertical steel bars 3. The ends of the four precast beams 2 and the top of the column 1 form a casting groove. The post-cast groove 8 is connected to the casting groove. After assembly, the precast beams 2 and the column 1 can be firmly connected by pouring concrete into the casting groove and the post-cast groove 8.

[0029] The column-beam connection node structure of the basement frame of this utility model is provided with horizontal stirrups 7 at the end of the precast beam 2, which are connected to the vertical steel bars 3 at the top of the column 1. The horizontal stirrups 7 can provide a tensile force, making the connection between the precast beam 2 and the column 1 more secure.

[0030] A post-casting groove 8 is set on the precast beam 2. A transverse tie structure 9 is set in the post-casting groove 8 and connected to the vertical steel bar 3 at the top of the column 1. The transverse tie structure 9 can provide a tensile force to make the connection between the precast beam 2 and the column 1 more secure. Then, concrete is poured into the post-casting groove 8 and the four ends of the precast beam 2 and the top of the column 1 to harden the concrete, ensuring that the connection between the precast beam 2 and the column 1 is more secure, reliable and safe.

[0031] Reference Figure 5 and Figure 7The transverse tie structure 9 includes uprights 11 and tie rods 12. Uprights 11 have hooks 13 at both ends that connect to the crossbeam stirrups 6. One end of the tie rod 12 has a pull ring 14 that connects to the vertical reinforcing bar 3. The other end of the tie rod 12 is connected to the uprights 11 via a locking structure. The tie rod 12 is connected to the crossbeam stirrups 6 of the precast beam 2 via the hooks 13, and the pull ring 14 of the tie rod 12 is fitted onto the vertical reinforcing bar 3. The locking structure then locks the tie rod 12 to the uprights 11, thus tightening the vertical reinforcing bar 3. After concrete is poured into the post-cast trench 8, the tie rod 12 acts as a skeleton, increasing the hardness of the concrete structure.

[0032] Reference Figure 5 and Figure 7 The locking structure includes a vertical groove 15 on the upright 11 and a screw part 16 at the other end of the pull rod 12. The screw part 16 is provided with a locking nut 17. The screw part 16 of the pull rod 12 can pass through the vertical groove 15, and the pull rod 12 can slide up and down in the vertical groove 15 to adjust the height. When the pull ring 14 at one end of the pull rod 12 is sleeved on the vertical steel bar 3, rotating the locking nut 17 on the screw part 16 can tighten both ends of the pull rod 12 between the vertical steel bar 3 and the upright 11.

[0033] Reference Figure 5 and Figure 6 The horizontal stirrup 7 is a U-shaped stirrup structure that connects to the transverse steel bars 5 on both sides of the precast beam 2. The U-shaped stirrup structure is fixedly connected to the transverse steel bars 5. The U-shaped stirrup structure can be fitted around the vertical steel bar 3 at the top of the column 1 and fixed by wire.

[0034] Reference Figure 5 and Figure 6 The two ends of the U-shaped hoop structure are fitted with screw sleeves 18. The ends of the transverse steel bars 5 are provided with external threaded sections 10 that are threaded to the screw sleeves 18. After the U-shaped hoop structure is fitted around the vertical steel bars 3, the screw sleeves 18 can be rotated to connect with the external threaded sections 10. By adjusting the distance between the U-shaped hoop structure and the end of the precast beam 2, the longitudinal section of the U-shaped hoop structure can be made to fit tightly with the vertical steel bars 3. Then, the U-shaped hoop structure and the vertical steel bars 3 are fixed with wire.

[0035] As a preferred technical solution of this utility model, the inner wall of the threaded sleeve 18 is provided with a limiting boss 19, and the two ends of the U-shaped hoop structure are provided with limiting flanges 20 that are adapted to the end faces of the limiting boss 19. One end of the threaded sleeve 18 is limited by the limiting boss 19 and the limiting flanges 20, and the other end is connected to the external thread section 10 through the internal thread. The interface fixes the U-shaped hoop structure and the transverse steel bar 5 together.

[0036] In this embodiment, after the threaded sleeves 18 at both ends of the U-shaped hoop structure are locked to the external threaded section 10 of the transverse reinforcing bar 5, welds are provided at the connection between the threaded sleeves 18 and the transverse reinforcing bar 5 and at the connection between the threaded sleeves 18 and both ends of the U-shaped hoop structure for welding and fixing, further ensuring the firmness of the connection between the U-shaped hoop structure and the transverse reinforcing bar 5.

[0037] Working principle:

[0038] One precast beam 2 is hoisted onto the column 1 in sequence. Horizontal stirrups 7 are fitted around the vertical reinforcing bars 3. Then, the pull ring 14 of the tie rod 12 is fitted onto the vertical reinforcing bars 3. The height of the tie rod 12 is adjusted, and the locking nut 17 is tightened to fix the tie rod 12. Then, column stirrups 4 are set around the vertical reinforcing bars 3 and fixed with wire. The other three precast beams 2 are hoisted in sequence, and the above actions are repeated to complete the initial assembly of the precast beams. Finally, concrete is poured into the casting groove 8 and the ends of the four precast beams 2 and the top of the column 1 to form a casting groove for hardening, which ensures a reliable connection between the precast beams 2 and the column 1, with a firm connection and good safety.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above embodiments only illustrate one or more implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A column-beam connection node structure for a basement frame, comprising a column (1) and precast beams (2), wherein the top of the column (1) can support the ends of four precast beams (2), and the edge of the top of the column (1) is provided with a vertical reinforcing bar (3), and the periphery of the vertical reinforcing bar (3) is provided with column stirrups (4), and the precast beams (2) are provided with transverse reinforcing bars (5) and beam stirrups (6), characterized in that, Each of the precast beams (2) has a horizontal stirrup (7) at its end that can surround the vertical steel bar (3). The horizontal stirrups (7) at the ends of the four precast beams (2) are staggered around the vertical steel bar (3). The ends of the four precast beams (2) have a post-casting groove (8) that runs vertically through them. The horizontal beam stirrup (6) is exposed at the post-casting groove (8). The post-casting groove (8) has a horizontal tie structure (9). The two ends of the horizontal tie structure (9) are detachably connected to the horizontal beam stirrup (6) at the post-casting groove (8) and the vertical steel bar (3) on the column (1).

2. The column-beam connection node structure of a basement frame according to claim 1, characterized in that, The transverse tie structure (9) includes a vertical pole (11) and a tie rod (12). The vertical pole (11) has hooks (13) at both ends that are connected to the stirrups (6) of the crossbeam. One end of the tie rod (12) is provided with a pull ring (14) that is connected to the vertical steel bar (3). The other end of the tie rod (12) is provided with a locking structure between it and the vertical pole (11).

3. The column-beam connection node structure of a basement frame according to claim 2, characterized in that, The locking structure includes a vertical groove (15) on the upright (11) and a screw part (16) at the other end of the pull rod (12), and a locking nut (17) is provided on the screw part (16).

4. A column-beam connection node structure for a basement frame according to claim 1, 2, or 3, characterized in that, The horizontal stirrup (7) is a U-shaped stirrup structure that connects to the transverse steel bars (5) on both sides of the precast beam (2).

5. The column-beam connection node structure of a basement frame according to claim 4, characterized in that, Both ends of the U-shaped hoop structure are fitted with screw sleeves (18), and the ends of the transverse steel bars (5) are provided with external threaded sections (10) that are connected to the screw sleeves (18).

6. The column-beam connection node structure of a basement frame according to claim 5, characterized in that, The inner wall of the threaded sleeve (18) is provided with a limiting boss (19), and the two ends of the U-shaped hoop structure are provided with limiting flanges (20) that are adapted to the end face of the limiting boss (19).

7. The column-beam connection node structure of a basement frame according to claim 5, characterized in that, The connection between the threaded sleeve (18) and the transverse steel bar (5) and the connection between the threaded sleeve (18) and both ends of the U-shaped hoop structure are welded for fixing.

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