Staggered stacked modular energy dissipation beam connection nodes

Abstract

A staggered stacked modular energy-dissipating beam connection node includes a connecting plate, a plug-in block, a plug-in cylinder, and an energy-dissipating beam segment. One side of the connecting plate is connected to the plug-in block and the plug-in cylinder, and the other side is used to connect to a precast column. The plug-in block is inserted into the plug-in cylinder to form a grouting space. At least one energy-dissipating beam segment is connected to the outer wall of the plug-in cylinder. This utility model's connection node uses a vertical plug-in method to staggeredly stack and assemble the modules, thereby achieving equal tensile and bending strength with the connected precast column. Furthermore, the connection node has an energy-dissipating beam segment, which, through connection with the precast beam, enhances the energy dissipation capacity of the connection node, further improving the seismic performance of the modular structure and thus improving the safety of the staggered stacked modular structure.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a staggered stacked modular energy-dissipating beam connection node. Background Technology

[0002] Prefabricated structures mainly consist of precast beams, precast columns, and precast floor slabs. The precast beams and columns are partially or completely connected via joints. They offer advantages such as high assembly efficiency, short construction period, and high degree of industrialization, making them one of the superior structural systems aligning with the trend of industrialized building development. Joints are the most crucial component of prefabricated structures. Currently, joints are generally welded on-site, a complex process heavily reliant on welding technology. Welding not only presents certain construction safety issues but also negatively impacts construction speed and project quality. Furthermore, during earthquakes, joints need to possess a certain degree of plastic rotation capacity to prevent brittle structural failure; however, traditional joints lack this capacity and have weak energy dissipation capabilities. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a staggered stacked modular energy-dissipating beam connection node.

[0004] A staggered stacked modular energy-dissipating beam connection node includes a connecting plate, a plug-in block, a plug-in cylinder, and an energy-dissipating beam segment. One side of the connecting plate is connected to the plug-in block and the plug-in cylinder, and the other side is used to connect to a precast column. The plug-in block is inserted into the plug-in cylinder to form a grouting space. At least one of the energy-dissipating beam segments is connected to the outer wall of the plug-in cylinder.

[0005] Furthermore, the outer wall of the plug block extends horizontally outward with a plurality of first studs, and the inner wall of the plug tube extends horizontally inward with a plurality of second studs.

[0006] Furthermore, the first studs are arranged in multiple vertical columns, and the second studs are arranged in multiple vertical columns. After the plug-in block and the plug-in cylinder are plugged in, the vertical columns formed by the first studs and the vertical columns formed by the second studs are staggered in the horizontal direction.

[0007] Furthermore, the plug block is a C-shaped plug block, the plug tube is a C-shaped plug tube, and the openings of the plug block and the plug tube are symmetrically arranged facing each other.

[0008] Furthermore, a reinforcing plate is provided at the opening of the plug tube, and the top surface of the reinforcing plate is on the same plane as the top surface of the plug tube.

[0009] Furthermore, an outer ring plate is connected to the top outer edge of the plug-in tube, and the outer ring plate is connected to the energy-dissipating beam segment; the top surface of the outer ring plate and the top surface of the plug-in tube are on the same plane.

[0010] Furthermore, the outer ring plate is parallel to the connecting plate, and the energy-dissipating beam segment is sandwiched between the outer ring plate and the connecting plate.

[0011] Furthermore, the outer wall of the plug-in tube is connected to two energy-dissipating beam segments, which are perpendicular to each other on the same horizontal plane.

[0012] Furthermore, the energy-dissipating beam segment is an H-beam, which includes two horizontal plates and one vertical plate, with the vertical plate vertically connected between the two horizontal plates.

[0013] Furthermore, the end of the energy-dissipating beam segment furthest from the plug-in cylinder is lapped with reinforcing bars.

[0014] The beneficial effects of this utility model are as follows:

[0015] The connection nodes of this utility model adopt a vertical plug-in structure, which allows the modules to be stacked and assembled in an interlaced manner. Based on the prefabrication of modules, on-site construction and assembly are more convenient and faster.

[0016] The connection nodes also adopt a double plug-in structure. By plugging the plug-in block of one connection node into the plug-in cylinder of another connection node, and plugging the plug-in cylinder of one connection node into the plug-in block of another connection node, the tensile and bending strength of the connected precast columns can be equal.

[0017] In addition, the connection node has an energy-dissipating beam segment, which is connected to the precast beam, enhancing the energy dissipation capacity of the connection node and further improving the seismic performance of the modular structure, thereby improving the safety of the staggered stacked modular structure. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the connection node of the staggered stacked modular energy-dissipating beams.

[0019] Figure 2 yes Figure 1 A schematic diagram of the connection between the central connecting node and the precast columns and beams.

[0020] Figure 3 yes Figure 2 A schematic diagram of the structure when two connecting nodes are plugged in.

[0021] Figure 4 yes Figure 3 A cross-sectional diagram of the two connecting nodes when they are plugged in.

[0022] Figure 5yes Figure 4 Schematic diagram of the connection structure between the medium-energy-consuming beam segment and the reinforcing steel.

[0023] The following are the reference numerals: 1. Connecting node; 2. Connecting plate; 3. Insertion block; 4. Insertion tube; 5. Energy dissipation beam segment; 6. First stud; 7. Second stud; 8. Reinforcing plate; 9. Outer ring plate; 10. Horizontal plate; 11. Vertical plate; 12. Precast column; 13. Precast beam; 14. Reinforcing bar; 15. Stiffening rib. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figure 1 As shown, this utility model relates to a staggered stacked modular energy-dissipating beam connection node 1. The connection node 1 includes a connecting plate 2, a plug-in block 3, a plug-in cylinder 4, and an energy-dissipating beam segment 5. Combined with... Figure 2 As shown, one side of the connecting plate 2 is connected to the plug-in block 3 and the plug-in cylinder 4, and the other side is used to connect the precast column 12. The outer wall of the plug-in cylinder 4 is connected to at least one energy-dissipating beam segment 5, which is used to connect the precast beam 13.

[0028] like Figure 3As shown, when two connecting nodes 1 are vertically inserted, the insertion block 3 of one connecting node 1 is inserted into the insertion cylinder 4 of the other connecting node 1 to form a grouting space, and the insertion block 3 of the other connecting node 1 is inserted into the insertion cylinder 4 of one connecting node 1 to form another grouting space. The two connecting nodes 1 are connected by grouting.

[0029] The plug-in block 3 is a C-shaped plug-in block 3, and the plug-in cylinder 4 is a C-shaped plug-in cylinder 4. The openings of the plug-in block 3 and the openings of the plug-in cylinder 4 are symmetrically arranged facing each other. When two connection nodes 1 are plugged in, a buffer gap is formed between the openings of the plug-in cylinders 4 of the two connected connection nodes 1, which can buffer the vertical load applied to the connection node 1 by the precast column 12, bear a large vertical load, and ensure the stable load-bearing capacity of the modular structure system.

[0030] Multiple first studs 6 extend horizontally outward from the outer wall of the plug-in block 3, arranged in multiple vertical columns. Multiple second studs 7 extend horizontally inward from the inner wall of the plug-in cylinder 4, also arranged in multiple vertical columns. After the two connecting nodes 1 are plugged in, the vertical columns formed by the first studs 6 and the vertical columns formed by the second studs 7 are staggered horizontally. The plugging of the two connecting nodes 1 forms a grouting space, into which grout is injected. After the grout solidifies, the two connecting nodes 1 are tightly connected. The presence of first studs 6 and second studs 7 in the grouting space improves the reliability of the connection between the two connecting nodes 1.

[0031] To improve the joint strength at the corner of the connector 4, a reinforcing plate 8 is provided at the corner of the connector 4, and the top surface of the reinforcing plate 8 is on the same plane as the top surface of the connector 4 to facilitate the transfer of load from the connector 4. For convenient grouting, the connecting node 1 is provided with a grouting hole and an overflow hole along the vertical direction. The grouting hole and overflow hole are connected to the grouting space to facilitate the injection of grout into the grouting space. The grouting hole is connected to the grout inlet pipe, and the overflow hole is connected to the grout outlet pipe. Grouting is performed by introducing grout through the lower grout inlet pipe and discharging grout through the upper grout outlet pipe; grout discharge from the upper grout outlet pipe indicates that the grouting is complete. Since the two connecting nodes 1 are symmetrically and vertically connected, the through hole located at the top is the overflow hole, and the through hole located at the bottom is the grouting hole, based on the vertical direction. The overflow hole and grouting hole can be uniformly located on the side wall of the connector 4, or one of them can be located on the connecting plate 2.

[0032] In this embodiment, the outer wall of the plug-in cylinder 4 is connected to two energy-dissipating beam segments 5, which are perpendicular to each other on the same horizontal plane. The top outer edge of the plug-in cylinder 4 is connected to an outer ring plate 9, which is connected to the energy-dissipating beam segments 5. The top surface of the outer ring plate 9 is on the same plane as the top surface of the plug-in cylinder 4, and the outer ring plate 9 is parallel to the connecting plate 2. The energy-dissipating beam segments 5 are sandwiched between the outer ring plate 9 and the connecting plate 2.

[0033] The energy-dissipating beam segment 5 is an H-beam, which includes two horizontal plates 10 and one vertical plate 11. The vertical plate 11 is vertically connected between the two horizontal plates 10. One horizontal plate 10 is connected to the outer ring plate 9, and the other horizontal plate 10 is connected to the connecting plate 2.

[0034] The outer ring plate 9, in addition to ensuring the rigid connection of the connection node 1, can also ensure the integrity of the plug-in tube 4, avoiding the problem of the plug-in tube 4 being difficult to connect with the energy dissipation beam segment 5 during plugging. At the same time, since the tensile force of the flange of the energy dissipation beam under bending can be transmitted through the outer ring plate 9, it can prevent the plug-in tube 4 from undergoing large deformation or even tearing damage, effectively improving the ductility and energy dissipation capacity of the connection node 1.

[0035] like Figure 4 As shown, the side of the connecting plate 2 that connects to the precast column 12 is also provided with stiffening ribs 15. Multiple triangular stiffening ribs 15 are arranged around the edge of the connecting plate 2, ensuring that the precast column 12 maintains good overall stability even when subjected to torque. Combined with... Figure 5 As shown, the end of the energy-dissipating beam segment 5 away from the plug-in cylinder 4 is lapped with a steel bar 14, thereby improving the shear strength and seismic performance of the precast beam 13 and the connection node 1.

[0036] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An interleaved stacked modular energy dissipating beam connection node, characterized by: It includes a connecting plate, a plug-in block, a plug-in cylinder, and an energy-dissipating beam segment. One side of the connecting plate is connected to the plug-in block and the plug-in cylinder, and the other side is used to connect to a precast column. The plug-in block is inserted into the plug-in cylinder to form a grouting space. At least one of the energy-dissipating beam segments is connected to the outer wall of the plug-in cylinder.

2. The staggered stacked modular energy-dissipating beam connection node according to claim 1, characterized in that: The outer wall of the plug block extends horizontally outward with a plurality of first studs, and the inner wall of the plug tube extends horizontally inward with a plurality of second studs.

3. The staggered stacked modular energy-dissipating beam connection node according to claim 2, characterized in that: Multiple first studs are arranged in multiple vertical columns, and multiple second studs are arranged in multiple vertical columns. After the plug block and the plug tube are plugged in, the vertical columns formed by the first studs and the vertical columns formed by the second studs are staggered in the horizontal direction.

4. The staggered stacked modular energy dissipating beam connection node of claim 1, wherein: The plug block is a C-shaped plug block, and the plug tube is a C-shaped plug tube. The openings of the plug block and the openings of the plug tube are symmetrically arranged facing each other.

5. The staggered stacked modular energy dissipating beam connection node of claim 1, wherein: The opening of the plug tube is provided with a reinforcing plate, and the top surface of the reinforcing plate is on the same plane as the top surface of the plug tube.

6. The staggered stacked modular energy dissipating beam connection node of claim 1, wherein: The top outer edge of the plug-in tube is connected to an outer ring plate, which is connected to the energy-dissipating beam segment; the top surface of the outer ring plate and the top surface of the plug-in tube are on the same plane.

7. The staggered stacked modular energy dissipating beam connection node of claim 6, wherein: The outer ring plate is parallel to the connecting plate, and the energy-dissipating beam segment is sandwiched between the outer ring plate and the connecting plate.

8. The staggered stacked modular energy dissipating beam connection node of claim 1, wherein: The outer wall of the plug tube is connected to two energy-dissipating beam segments, which are perpendicular to each other on the same horizontal plane.

9. The staggered stacked modular energy dissipating beam connection node of claim 1, wherein: The energy-dissipating beam segment is an H-beam, which includes two horizontal plates and one vertical plate, with the vertical plate vertically connected between the two horizontal plates.

10. The staggered stacked modular energy dissipating beam connection node of claim 1, wherein: The end of the energy-dissipating beam segment furthest from the plug-in cylinder is lapped with reinforcing bars.

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