Prefabricated building node structure and prefabricated building

Abstract

This utility model relates to a prefabricated building node structure, which provides multiple connection nodes at the joint of two horizontally spliced ​​building components. These connection nodes are distributed sequentially from top to bottom at intervals, and at least some of them are energy-dissipating nodes. Each energy-dissipating node includes an energy-dissipating connector, which comprises two connecting plates and an energy-dissipating plate sandwiched between the two connecting plates. The two connecting plates are respectively fixedly connected to the two building components. The utility model also relates to prefabricated buildings using this prefabricated building node structure. In this utility model, the energy-dissipating plate sandwiched between the two connecting plates can dissipate energy in the length, thickness, and height directions of the prefabricated wall panel, thus effectively improving the seismic performance, impact resistance, and shear resistance of the prefabricated building node. Furthermore, the energy-dissipating connector allows the prefabricated building node structure to function as an expansion joint, thereby eliminating or reducing the need for building expansion joints.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, specifically relating to a prefabricated building node structure and a prefabricated building using the prefabricated building node structure. Background Technology

[0002] In building construction and other building projects, prefabricated construction methods are increasingly widely used due to their significant advantages, including factory production of most components, minimal or no wet work on site, fast installation speed, minimal impact on the surrounding environment, and reduced construction waste. Currently, most prefabricated building construction still uses wet joints to connect two precast wall panels or between a precast wall panel and a precast column. This requires pre-installed reinforcing steel and on-site formwork, limiting construction efficiency and requiring improvement in the on-site environment. Other methods include end tenon and mortise joints or bolt assembly. Regardless of whether it's the aforementioned wet joint connection methods or purely dry joint connections like end tenon and mortise joints or bolt assembly, they all perform poorly in terms of seismic resistance and impact resistance. Summary of the Invention

[0003] In view of the technical defects and drawbacks existing in the prior art, this utility model provides a prefabricated building node structure that overcomes or at least partially solves the above problems, as well as a prefabricated building using the prefabricated building node structure.

[0004] The above-mentioned prefabricated building node structure includes two horizontally spliced ​​building components. The two building components are two prefabricated wall panels or one prefabricated wall panel and one prefabricated column. Multiple connection nodes are provided at the joint of the two building components. The multiple connection nodes are distributed at intervals from top to bottom. At least some of the connection nodes are energy-dissipating nodes.

[0005] The energy-dissipating node includes an energy-dissipating connector, which includes two connecting plates and an energy-dissipating plate sandwiched between the two connecting plates. The two connecting plates are respectively fixedly connected to two building components.

[0006] Preferably, the connecting plate is an L-shaped plate, which includes a first plate segment and a second plate segment connected vertically. The energy-consuming plate is sandwiched between the two first plate segments and the three together constitute an energy-consuming module. The surface of the second plate segment is parallel to the surface of the precast wall panel. The two second plate segments are respectively fixedly connected to two building components by threaded fasteners.

[0007] Preferably, at the energy-consuming node, vertical steel pipes are fixed to the joint ends of the two building components respectively, the energy-consuming module is embedded between the two vertical steel pipes, and the two second plate segments are fixedly connected to the two vertical steel pipes respectively.

[0008] Preferably, the vertical steel pipe is pre-embedded in the corresponding building component and is integrally connected in series with each of the energy-consuming nodes.

[0009] Preferably, concrete is poured into the vertical steel pipe.

[0010] Preferably, each energy-dissipating node is provided with two energy-dissipating connectors, and the two energy-dissipating connectors are distributed along the thickness direction of the precast wall panel.

[0011] Preferably, at the energy-dissipating node, each building component joint end includes a boss and two node grooves arranged on both sides of the boss along the thickness direction of the precast wall panel. The two bosses are joined together to form an intermediate bridge. The two node grooves on each side of the intermediate bridge are connected to form an assembly groove. The two energy-dissipating connectors are respectively located in the two assembly grooves.

[0012] Preferably, the ends of the two bosses are respectively formed with end grooves, and the two end grooves are joined together to form a hollow hole located in the intermediate bridge.

[0013] The aforementioned prefabricated building includes at least one set of wall panel nodes and at least one set of wall column nodes, with at least some of the wall panel nodes and / or at least some of the wall column nodes employing the prefabricated building node structure described above.

[0014] Preferably, the height gap between the prefabricated building and the foundation layer is adjusted by a height adjustment structure and the height gap is filled by cast-in-place concrete; and / or, the prefabricated building is a multi-story building, and the height gap between two adjacent building layers is adjusted by a height adjustment structure and the height gap is filled by cast-in-place concrete.

[0015] This utility model has the following beneficial effects:

[0016] In this invention, an energy-dissipating node is used for the horizontal splicing of two building components. Two connecting plates are fixedly connected to the two building components respectively. The energy-dissipating plate sandwiched between the two connecting plates not only dissipates energy along the length of the prefabricated wall panel, but also along its thickness and height. Therefore, it can effectively improve the seismic performance, impact resistance, and shear resistance of the prefabricated building node. In addition, by setting the energy-dissipating connector, the prefabricated building node structure can function as an expansion joint, thereby eliminating or reducing building expansion joints. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A partial schematic diagram of a prefabricated building provided for an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the energy-consuming node provided in an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of a multi-story building provided for an embodiment of this utility model. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the present utility model, and not all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0022] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a prefabricated building node structure, including two horizontally spliced ​​building components. The two building components are two prefabricated wall panels 11 or one prefabricated wall panel 11 and one prefabricated column 12. Multiple connection nodes are provided at the joint of the two building components. The multiple connection nodes are distributed sequentially from top to bottom at intervals. At least some of the connection nodes are energy-dissipating nodes 2. The energy-dissipating node 2 includes an energy-dissipating connector 21. The energy-dissipating connector 21 includes two connecting plates 211 and an energy-dissipating plate 212 sandwiched between the two connecting plates 211. The two connecting plates 211 are respectively fixedly connected to the two building components.

[0023] The aforementioned energy-consuming board 212 has energy-consuming characteristics, including but not limited to the use of components with buffering and shock absorption effects. In this embodiment, a rubber board is used, which has advantages such as good durability and weather resistance, good energy-consuming effect, and low cost, and is suitable for large-scale and long-term application in prefabricated buildings. In addition, it is feasible to use energy-consuming components such as polyurethane boards and mild steel.

[0024] The energy-consuming plate 212 is fixedly connected to the two connecting plates 211, including but not limited to fixing by adhesive; in another embodiment, the energy-consuming plate 212 can be formed by injection molding between the two connecting plates 211.

[0025] Preferably, such as Figure 2 The energy-consuming panel 212 is a straight panel with its surface parallel to the vertical and perpendicular to the surface of the precast wall panel 11.

[0026] For ease of description, the precast wall panel 11 is defined below as having a height direction (parallel to the vertical), a length direction (along the splicing direction of the nodes), and a thickness direction (perpendicular to the surface of the precast wall panel 11).

[0027] In the above structure, two connecting plates 211 are fixedly connected to two building components respectively. The energy-dissipating plate 212 sandwiched between the two connecting plates 211 can not only dissipate energy in the length direction of the prefabricated wall panel 11, but also in the thickness and height directions of the prefabricated wall panel 11. Therefore, it can effectively improve the seismic performance, impact resistance, and shear resistance of the prefabricated building node. In addition, by setting the above-mentioned energy-dissipating connector 21, the above-mentioned prefabricated building node structure can act as an expansion joint, thereby eliminating / reducing building expansion joints.

[0028] In one embodiment, such as Figure 2 The connecting plate 211 is an L-shaped plate, which includes a first plate segment 2111 and a second plate segment 2112 that are vertically connected. The energy-consuming plate 212 is sandwiched between the two first plate segments 2111 and the three together constitute an energy-consuming module. The surface of the second plate segment 2112 is parallel to the surface of the precast wall panel 11. The two second plate segments 2112 are respectively fixedly connected to the two building components by threaded fasteners 22.

[0029] Based on the above structure, it is convenient to set up the energy dissipation plate 212 and ensure that the energy dissipation plate 212 can reliably play its energy dissipation role. The energy such as vibration and impact on the building can be reliably transferred to the energy dissipation plate 212 through the connecting plate 211. At the same time, it is also convenient to fix the energy dissipation connector 21 to the two building components.

[0030] Optionally, the first plate segment 2111 is made of corrugated plate. On the one hand, it can increase the contact area between the first plate segment 2111 and the energy dissipation plate 212, thereby improving the energy dissipation and transfer effect between the two. On the other hand, the first plate segment 2111 has a better constraint effect on the energy dissipation plate 212, and the two are not easy to separate and disintegrate. This not only ensures the application reliability of the energy dissipation connector 21, but also has advantages in improving the shear resistance of prefabricated building nodes.

[0031] In one embodiment, such as Figure 2 At the energy-consuming node 2, vertical steel pipes 13 are fixed at the joint ends of the two building components respectively. The energy-consuming module is embedded between the two vertical steel pipes 13, and the two second plate segments 2112 are fixedly connected to the two vertical steel pipes 13 respectively.

[0032] Preferably, the energy-consuming modules are in contact with the two vertical steel pipes 13 respectively, ensuring that the energy from vibrations, impacts, etc., experienced by the building can be reliably transferred to the energy-consuming plate 212. The two first plate segments 2111 can be fixedly connected to the two vertical steel pipes 13 (e.g., by welding or by driving self-tapping screws into the vertical steel pipes 13), or they can be left unfixed.

[0033] The second plate segment 2112 and the vertical steel pipe 13 are fixedly connected by means of, but not limited to, self-tapping screws.

[0034] In the above structure, since the energy-dissipating connector 21 is fixedly connected to the two building components through the threaded fastener 22, the energy-dissipating connector 21 is detachable, which facilitates maintenance and replacement and improves the convenience and economy of maintenance of prefabricated buildings.

[0035] Preferably, the vertical steel pipe 13 is pre-embedded in the corresponding building component and is integrally connected in series with each of the energy-dissipating nodes 2, specifically, as shown in the example. Figure 2 Each energy-dissipating node 2 of the building component has a node groove 15. The node groove 15 passes through the joint end of the building component and one or both sides of the building component (e.g., the indoor side panel and / or the outdoor side panel). A single vertical steel pipe 13 passes through each node groove 15 of the building component from bottom to top. The vertical steel pipe 13 is embedded in the concrete of the building component between two adjacent node grooves 15. That is, the vertical steel pipe 13 includes multiple node pipe segments and multiple embedded pipe segments. The number of node pipe segments is the same as the number of node grooves 15 and they are configured one-to-one. Each segment is exposed in the corresponding node groove 15, so as to facilitate connection with the energy-dissipating connector 21. There is a embedded pipe segment between every two adjacent node pipe segments. The embedded pipe segment is embedded in the concrete of the building component. Based on the above structure, each energy-dissipating node 2 can be connected in series by vertical steel pipe 13, so that each energy-dissipating node 2 can move synchronously and bear force together. In addition, the joint end of the building component is formed as a steel pipe concrete structure, which can greatly improve the structural performance of the prefabricated building node and improve the application reliability and safety of prefabricated buildings.

[0036] Preferably, each connection node is an energy-consuming node 2.

[0037] Furthermore, concrete is poured into the vertical steel pipe 13, which can further improve the structural strength and stiffness of the joint end of the building components, as well as the structural integrity of each energy-dissipating node 2. At the same time, it can also improve the structural performance and stress performance of the energy-dissipating node 2, and ensure the strength and stiffness of the node structure. In addition, the self-tapping screws are driven into the vertical steel pipe 13 and can be fixed by the cast-in-place concrete, which further improves the connection reliability between the energy-dissipating connector 21 and the vertical steel pipe 13, and can also improve the bonding reliability between the vertical steel pipe 13 and the cast-in-place concrete.

[0038] Optionally, pressure sensors or monitoring optical cables are pre-embedded in at least part of the energy-dissipating board 212. Correspondingly, wiring holes can be pre-drilled on the first board segment 2111 and the vertical steel pipe 13. The wiring of the pressure sensor / monitoring optical cable can be routed through the vertical steel pipe 13, thereby facilitating electrical connection with the external monitoring host. Based on this design, the energy-dissipating node 2 can be conveniently and reliably monitored in real time, ensuring the structural safety of the prefabricated building; it can even provide early warning or alarm when the building is subjected to vibration, impact, or damage to the energy-dissipating board 212, thereby improving the safety of personnel in the building, or facilitating timely replacement and maintenance of the energy-dissipating connector 21 by maintenance personnel.

[0039] In one embodiment, such as Figure 2 Each energy-dissipating node 2 is provided with two energy-dissipating connectors 21, which are distributed along the thickness direction of the precast wall panel 11. This can further improve the structural performance and load-bearing performance of the energy-dissipating node 2. Correspondingly, when vertical steel pipes 13 are provided, two vertical steel pipes 13 are provided at the joint end of each building component.

[0040] As an optional embodiment, such as Figure 2 At the energy-consuming node 2, each building component joint end includes a boss 14 and two node grooves 15 arranged on both sides of the boss 14 along the thickness direction of the precast wall panel 11. The two bosses 14 are joined together to form an intermediate bridge. The two node grooves 15 on each side of the intermediate bridge are connected to form an assembly groove. The two energy-consuming connectors 21 are located in the two assembly grooves respectively.

[0041] More preferably, such as Figure 2The ends of the two protrusions 14 are respectively formed with end grooves 140, and the two end grooves 140 are joined together to form a hollow hole 16 located in the middle bridge; furthermore, concrete can be cast in place in the hollow hole 16, which can improve the structural performance and load-bearing performance of the prefabricated building node. For example, when the above-mentioned prefabricated building node structure is located on the periphery of the building, the structural integrity between the two building components can be improved by casting concrete in place in the hollow hole 16, which is more beneficial to improving the wind load resistance and impact resistance of the prefabricated building node structure.

[0042] Furthermore, the hollow holes 16 are connected in sequence to form a through hole. When concrete is poured, the concrete fills each hollow hole 16 integrally from top to bottom, which can further improve the structural integrity between the two building components. Example 2

[0043] like Figures 1-3 This embodiment provides a prefabricated building, including at least one set of wall panel nodes and at least one set of wall column nodes, wherein at least some of the wall panel nodes and / or at least some of the wall column nodes adopt the prefabricated building node structure provided in Embodiment 1 above.

[0044] Preferably, the height gap between the prefabricated building and the foundation layer is adjusted by a height adjustment structure and the height gap is filled by cast-in-place concrete; and / or, the prefabricated building is a multi-story building, and the height gap between two adjacent building layers 100 is adjusted by a height adjustment structure and the height gap is filled by cast-in-place concrete.

[0045] In one embodiment, such as Figures 1-3 The height adjustment structure includes multiple adjustment boxes 3. Multiple adjustment studs are screwed to the upper and lower ends of the adjustment boxes 3 respectively. The adjustment studs are screwed to the adjacent foundation layer / building layer 100, which allows for convenient adjustment of the height gap.

[0046] Optionally, the upper and lower ends of the vertical steel pipe 13 are connected to the height gaps on the upper and lower sides respectively, and / or the upper and lower ends of the above-mentioned through hole are connected to the height gaps on the upper and lower sides respectively. When the concrete is poured in place within the height gap, the poured concrete fills each vertical steel pipe 13 / each through hole together. This can further improve the structural integrity of the prefabricated building and correspondingly improve the structural performance of the prefabricated building.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prefabricated building node structure, comprising two horizontally spliced ​​building components, wherein the two building components are two prefabricated wall panels or one prefabricated wall panel and one prefabricated column, characterized in that, Multiple connection nodes are provided at the joint between two building components. The multiple connection nodes are distributed at intervals from top to bottom, and at least some of the connection nodes are energy-dissipating nodes. The energy-dissipating node includes an energy-dissipating connector, which includes two connecting plates and an energy-dissipating plate sandwiched between the two connecting plates. The two connecting plates are respectively fixedly connected to two building components.

2. The prefabricated building node structure according to claim 1, characterized in that, The connecting plate is an L-shaped plate, which includes a first plate segment and a second plate segment that are vertically connected. The energy-consuming plate is sandwiched between the two first plate segments and the three together constitute an energy-consuming module. The surface of the second plate segment is parallel to the surface of the precast wall panel. The two second plate segments are respectively fixedly connected to two building components by threaded fasteners.

3. The prefabricated building node structure according to claim 2, characterized in that, At the energy-consuming node, vertical steel pipes are fixed to the joint ends of the two building components respectively, the energy-consuming module is embedded between the two vertical steel pipes, and the two second plate segments are fixedly connected to the two vertical steel pipes respectively.

4. The prefabricated building node structure according to claim 3, characterized in that, The vertical steel pipes are embedded in the corresponding building components and are connected in series with each of the energy-consuming nodes.

5. The prefabricated building node structure according to claim 3, characterized in that, Concrete was poured into the vertical steel pipe.

6. The prefabricated building node structure according to any one of claims 1 to 5, characterized in that, Two energy-dissipating connectors are provided at each energy-dissipating node, and the two energy-dissipating connectors are distributed along the thickness direction of the precast wall panel.

7. The prefabricated building node structure according to claim 6, characterized in that, At the energy-dissipating node, each building component's joint end includes a boss and two node grooves arranged on both sides of the boss along the thickness direction of the precast wall panel. The two bosses are joined together to form an intermediate bridge. The two node grooves on each side of the intermediate bridge are connected to form an assembly groove. The two energy-dissipating connectors are located in the two assembly grooves respectively.

8. The prefabricated building node structure according to claim 7, characterized in that, The ends of the two protrusions are respectively formed with end grooves, and the two end grooves are joined together to form a hollow hole located in the middle bridge.

9. A prefabricated building, comprising at least one set of wall panel nodes and at least one set of wall column nodes, characterized in that, At least some wall panel nodes and / or at least some wall column nodes adopt the prefabricated building node structure as described in any one of claims 1 to 8.

10. The prefabricated building as described in claim 9, characterized in that, The height gap between the prefabricated building and the foundation layer is adjusted by a height adjustment structure and the height gap is filled by cast-in-place concrete; and / or, the prefabricated building is a multi-story building, and the height gap between two adjacent building layers is adjusted by a height adjustment structure and the height gap is filled by cast-in-place concrete.

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