Beam-column joint for prefabricated PEC structural system

Abstract

The utility model relates to the technical field of assembly type construction engineering, and discloses a beam column joint for a prefabricated assembly type PEC structural system, which comprises a prefabricated PEC column and a prefabricated PEC cross beam assembly, an auxiliary mechanism is arranged on the surface of the prefabricated PEC cross beam assembly, a fixing bolt and a nut are arranged on the prefabricated PEC column, and the prefabricated PEC cross beam assembly is provided with an auxiliary mechanism. The auxiliary mechanism comprises a fixing frame, a guide rod, a screw rod, a limiting plate and a rotary knob, according to the beam column joint for the prefabricated PEC structural system, through the arranged square hole and the auxiliary mechanism, when a prefabricated PEC cross beam assembly and a prefabricated PEC column are spliced, fixing bolts on the prefabricated PEC column penetrate through the square hole, the fixing bolts do not need to be aligned one by one, operation is convenient, and the assembling efficiency is improved. The limiting plate is controlled to abut against the fixing bolt and the nut, so that transverse limiting of the prefabricated PEC beam assembly is achieved, transverse displacement of the prefabricated PEC beam assembly is avoided, butt joint installation of the prefabricated PEC beam assembly is facilitated, and meanwhile stability of the prefabricated PEC beam assembly is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building engineering technology, specifically a beam-column joint for a prefabricated PEC structural system. Background Technology

[0002] Partially encased steel-concrete composite (PEC) structures are composite structures formed by binding steel bars between the flanges of H-beams and filling them with concrete. Due to their advantages such as high load-bearing capacity, good ductility, and excellent fire and corrosion resistance, they are widely used in high-rise buildings, large-span structures, and engineering reinforcement. For example, the beam-column joint for prefabricated PEC structural systems disclosed in announcement number "CN214696131U" involves factory prefabrication followed by on-site assembly. However, because the prefabricated PEC beam assembly has a certain weight, its installation on prefabricated PEC columns requires lifting the assembly and aligning the holes with the mounting bolts. This necessitates repeated adjustments by workers to align all holes with the bolts, resulting in poor overall efficiency. Therefore, we propose a beam-column joint for prefabricated PEC structural systems. Utility Model Content

[0003] The purpose of this invention is to provide a beam-column joint for prefabricated PEC structural systems to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a beam-column joint for a prefabricated PEC structural system, comprising a prefabricated PEC column and a prefabricated PEC beam assembly, wherein the surface of the prefabricated PEC beam assembly is provided with an auxiliary mechanism, and the prefabricated PEC column is provided with fixing bolts and nuts;

[0005] The auxiliary mechanism includes:

[0006] The fixing frame is provided in two sets, and the two sets of fixing frames support the guide rod and the screw respectively;

[0007] Limiting plates are used to restrict the prefabricated PEC crossbeam assembly;

[0008] Guide rod, used to guide the limiting plate;

[0009] The screw is used to control the movement of the limiting plate.

[0010] Preferably, two sets of fixing brackets are provided, both sets of fixing brackets are fixed to the surface of the precast PEC crossbeam assembly, the guide rod is fixed to the inside of one set of fixing brackets, the screw passes through the other set of fixing brackets and is rotatably connected to the fixing bracket, the screw passes through the limiting plate and is threadedly connected to the limiting plate, the guide rod passes through the limiting plate and is slidably connected to the limiting plate, and a knob is fixed to the left side of the screw. By rotating the knob, the screw is rotated, which allows the limiting plate to move, thereby controlling the limiting plate to abut against the fixing bolts and nuts passing through the precast PEC crossbeam assembly, thereby laterally restricting the precast PEC crossbeam assembly and preventing lateral displacement of the precast PEC crossbeam assembly. This facilitates the docking and installation of the precast PEC crossbeam assembly while ensuring its stability.

[0011] Preferably, the screw is provided with two sets of opposite threads, and the limiting plate is provided with two sets. Both sets of limiting plates are symmetrically arranged with the center line of the prefabricated PEC beam assembly as the axis of symmetry. When the screw rotates, the two sets of limiting plates can be controlled to move towards or away from each other, thereby better restricting or releasing the prefabricated PEC beam assembly. At the same time, the two sets of limiting plates abut against the fixing bolts and nuts, which can ensure that the prefabricated PEC beam assembly is in a centered state.

[0012] Preferably, the surface of the prefabricated PEC beam assembly has square holes. When splicing the prefabricated PEC beam assembly with the prefabricated PEC column, the prefabricated PEC beam assembly is first lifted up, and then the fixing bolts on the prefabricated PEC column are passed through the square holes. It is not necessary to align the fixing bolts one by one, which is convenient. After the fixing bolts are passed through the square holes, the nuts are slightly tightened. The limiting plate is controlled by the auxiliary mechanism to abut against the fixing bolts and nuts. After the abutment is completed, the prefabricated PEC beam assembly is centered. Then the limiting plate is loosened, the nuts are fully tightened, and the limiting plate is controlled to abut against the fixing bolts and nuts again. This achieves lateral restriction of the prefabricated PEC beam assembly, so that the prefabricated PEC beam assembly will not shift laterally. This facilitates the docking and installation of the prefabricated PEC beam assembly while ensuring its stability.

[0013] Compared with the prior art, this utility model provides a beam-column joint for prefabricated PEC structural systems, which has the following advantages:

[0014] 1. The beam-column joint for prefabricated PEC structural systems, through the square holes and auxiliary mechanisms, allows the fixing bolts on the prefabricated PEC columns to pass through the square holes when splicing the prefabricated PEC beam assembly with the prefabricated PEC columns. This eliminates the need to align the fixing bolts one by one, making operation convenient. The control plate abuts against the fixing bolts and nuts, thereby achieving lateral restraint on the prefabricated PEC beam assembly and preventing lateral displacement. This facilitates the docking and installation of the prefabricated PEC beam assembly while ensuring its stability. 2. The beam-column joint of the prefabricated PEC structural system uses an auxiliary mechanism to control the rotation of the screw by turning a knob. This allows the limiting plate to move, thereby controlling the limiting plate to contact the fixing bolts and nuts passing through the prefabricated PEC beam assembly. This lateral restraint on the prefabricated PEC beam assembly prevents it from shifting laterally, facilitating the docking and installation of the prefabricated PEC beam assembly while ensuring its stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0016] Figure 2 This is a schematic diagram of the connection structure of the prefabricated PEC crossbeam assembly, screw, and auxiliary mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the prefabricated PEC crossbeam assembly and auxiliary mechanism of this utility model. In the figure: 1. Prefabricated PEC column; 2. Prefabricated PEC crossbeam assembly; 3. Auxiliary mechanism; 31. Fixing frame; 32. Guide rod; 33. Screw; 34. Limiting plate; 35. Knob; 4. Fixing bolt; 5. Nut; 6. Square hole. Detailed Implementation

[0018] like Figures 1-3 As shown, this utility model provides a technical solution: a beam-column joint for a prefabricated PEC structural system, including a prefabricated PEC column 1 and a prefabricated PEC beam assembly 2. An auxiliary mechanism 3 is provided on the surface of the prefabricated PEC beam assembly 2. A fixing bolt 4 and a nut 5 are provided on the prefabricated PEC column 1. The auxiliary mechanism 3 includes: a fixing frame 31, a guide rod 32, a screw 33, a limiting plate 34, and a knob 35.

[0019] Two sets of fixing brackets 31 are provided, and both sets of fixing brackets 31 are fixed to the surface of the precast PEC crossbeam assembly 2. The guide rod 32 is fixed to the inside of one set of fixing brackets 31. The screw 33 passes through the other set of fixing brackets 31 and is rotatably connected to the fixing brackets 31. The screw 33 passes through the limiting plate 34 and is threadedly connected to the limiting plate 34. The guide rod 32 passes through the limiting plate 34 and is slidably connected to the limiting plate 34. A knob 35 is fixed to the left side of the screw 33. By rotating the knob 35, the screw 33 is rotated, which allows the limiting plate 34 to move. This controls the limiting plate 34 to abut against the fixing bolts 4 and nuts 5 that pass through the precast PEC crossbeam assembly 2, thereby restricting the precast PEC crossbeam assembly 2 laterally and preventing lateral displacement of the precast PEC crossbeam assembly 2. This facilitates the docking and installation of the precast PEC crossbeam assembly 2 while ensuring its stability.

[0020] The screw 33 is provided with two sets of opposite threads, and the limiting plate 34 is provided with two sets. Both sets of limiting plates 34 are symmetrically arranged with the center line of the prefabricated PEC beam assembly 2 as the axis of symmetry. When the screw 33 rotates, it can control the two sets of limiting plates 34 to move towards or away from each other, so as to better restrict or release the prefabricated PEC beam assembly 2. At the same time, the two sets of limiting plates 34 abut against the fixing bolt 4 and nut 5, which can ensure that the prefabricated PEC beam assembly 2 is in a centered state.

[0021] The surface of the precast PEC beam assembly 2 has square holes 6. When splicing the precast PEC beam assembly 2 with the precast PEC column 1, the precast PEC beam assembly 2 is first lifted up, and then the fixing bolts 4 on the precast PEC column 1 are passed through the square holes 6. It is not necessary to align the fixing bolts 4 one by one, which is convenient. After the fixing bolts 4 are passed through the square holes 6, the nuts 5 are slightly tightened. The limiting plate 34 is controlled by the auxiliary mechanism 3 to abut against the fixing bolts 4 and nuts 5. After the abutment is completed, the precast PEC beam assembly 2 is centered. Then the limiting plate 34 is loosened and the nuts 5 are fully tightened. The limiting plate 34 is controlled to abut against the fixing bolts 4 and nuts 5 again, thereby achieving lateral restriction of the precast PEC beam assembly 2, so that the precast PEC beam assembly 2 will not shift laterally. This facilitates the docking and installation of the precast PEC beam assembly 2 and ensures the stability of the precast PEC beam assembly 2.

[0022] Based on the above implementation method, when splicing the precast PEC beam assembly 2 and the precast PEC column 1, the precast PEC beam assembly 2 is first lifted up, and then the fixing bolts 4 on the precast PEC column 1 are passed through the square holes 6. It is not necessary to align the fixing bolts 4 one by one, which is convenient. After the fixing bolts 4 are passed through the square holes 6, the nuts 5 are slightly tightened. By turning the knob 35, the screw 33 is rotated, which allows the limiting plate 34 to move. This controls the limiting plate 34 to abut against the fixing bolts 4 and nuts 5 passing through the precast PEC beam assembly 2, thereby restricting the precast PEC beam assembly 2 laterally and keeping the precast PEC beam assembly 2 in a centered state relative to the precast PEC column 1. After the control limiting plate 34 is loosened and the nut 5 is fully tightened, the control limiting plate 34 is used again to abut against the fixing bolt 4 and the nut 5, thereby achieving lateral restriction on the precast PEC beam assembly 2, so that the precast PEC beam assembly 2 will not shift laterally. This facilitates the docking and installation of the precast PEC beam assembly 2 while ensuring its stability.

Claims

1. A beam-column joint for a prefabricated PEC structural system, comprising a prefabricated PEC column (1) and a prefabricated PEC beam assembly (2), characterized in that: The surface of the precast PEC beam assembly (2) is provided with an auxiliary mechanism (3), and the precast PEC column (1) is provided with fixing bolts (4) and nuts (5). The auxiliary mechanism (3) includes: The fixing frame (31) supports the guide rod (32) and the screw (33) respectively; A limiting plate (34) is used to limit the prefabricated PEC beam assembly (2); Guide rod (32), guide rod (32) is used to guide the limiting plate (34); Screw (33) is used to control the movement of the limiting plate (34).

2. A beam-column joint for a prefabricated PEC structural system according to claim 1, characterized in that: The fixing frame (31) is provided in two sets, and both sets of the fixing frame (31) are set on the surface of the prefabricated PEC beam assembly (2).

3. A beam-column joint for a prefabricated PEC structural system according to claim 2, characterized in that: Both sets of the fixing brackets (31) are fixed on the surface of the prefabricated PEC beam assembly (2), the guide rod (32) is fixed on the inside of one set of the fixing brackets (31), and the screw (33) passes through the other set of the fixing brackets (31) and is rotatably connected to the fixing brackets (31).

4. A beam-column joint for a prefabricated PEC structural system according to claim 3, characterized in that: The screw (33) passes through the limiting plate (34) and is threadedly connected to the limiting plate (34). The guide rod (32) passes through the limiting plate (34) and is slidably connected to the limiting plate (34). A knob (35) is fixed on the left side of the screw (33).

5. A beam-column joint for a prefabricated PEC structural system according to claim 1, characterized in that: The screw (33) is provided with two sets of opposite threads, and the limiting plate (34) is provided with two sets. Both sets of the limiting plate (34) are symmetrically arranged with the center line of the prefabricated PEC beam assembly (2) as the axis of symmetry.

6. A beam-column joint for a prefabricated PEC structural system according to claim 1, characterized in that: The surface of the prefabricated PEC beam assembly (2) is provided with square holes (6).

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