A connecting structure of a concrete MIC module

Abstract

The utility model relates to the technical field of fabricated building construction, and concretely discloses a connecting structure of concrete MIC module, the connecting structure includes the horizontal connecting structure for the horizontal connection of adjacent two groups of concrete MIC module midside beam and floor, the horizontal connecting structure includes the recess that sets between adjacent concrete MIC module, installs the heat preservation board in the recess, sets the post -cured concrete layer above heat preservation board and with floor plane, and sets up the reinforcing mesh in the post -cured concrete layer and with concrete MIC module connection. Can effectively realize the connection of concrete MIC module, and greatly improves the connecting strength.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building construction technology, and more specifically, to a connection structure for a concrete MIC module. Background Technology

[0002] Prefabricated buildings refer to buildings where a large amount of on-site work in traditional construction methods is transferred to factories. Building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are prefabricated in factories, transported to the construction site, and assembled on-site using reliable connection methods.

[0003] Prefabricated buildings, due to their short construction cycle and minimal environmental impact, have become an important direction for achieving green building and industrialization. Among them, Modular Integrated Construction (MiC) is the prefabricated building with the highest assembly rate and the highest degree of industrialization.

[0004] Currently, modular concrete frame structures in China rely solely on column joints for connection, often using anchor bolts and precast steel plates. This results in poor seismic performance, limiting their application to buildings of six stories or less. Furthermore, during vertical connections, it is difficult to accurately assess the fullness of the poured concrete, thus affecting construction quality. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a connection structure for concrete MIC modules, which can effectively realize the connection of concrete MIC modules and greatly improve the connection strength.

[0006] The solution adopted by this utility model to solve the technical problem is: A connection structure for concrete MIC modules, used for connecting two adjacent sets of concrete MIC modules, including a horizontal connection structure for horizontal connection of edge beams and floor slabs in two adjacent sets of concrete MIC modules. The horizontal connection structure includes a groove between adjacent concrete MIC modules, an insulation board installed in the groove, a post-cast concrete layer set above the insulation board and coplanar with the floor slab, and a steel mesh set in the post-cast concrete layer and connected to the concrete MIC modules.

[0007] In some possible implementations, the groove is T-shaped, with the top surface of the larger end of the groove coplanar with the top surface of the floor slab, and the side of the smaller end of the groove near the larger end coplanar with the top surface of the side beam.

[0008] In some possible implementations, the steel mesh includes pre-embedded steel bars at one end in the floor slab and edge beam, and connecting steel bars for connecting the pre-embedded steel bars in two adjacent sets of concrete MIC modules.

[0009] In some possible implementations, a vertical connection structure is also included for vertically connecting the frame columns in two adjacent sets of concrete MIC modules. The vertical connection structure includes a corrugated pipe installed inside the frame column and a boss installed on the top surface of the frame column for supporting the upper frame column; the corrugated pipe is installed vertically; a post-cast zone is formed between two sets of vertically adjacent frame columns.

[0010] In some possible implementations, the bellows are in four groups, arranged on the frame column and located outside the boss; After the two adjacent sets of concrete MIC modules are assembled vertically, the corrugated pipe is fitted onto the outside of the main reinforcement in the frame column.

[0011] In some possible implementations, a closed template is provided on the outside of the post-pouring zone, and the closed template is provided with vent holes communicating with the post-pouring zone.

[0012] In some possible implementations, stirrups are provided in the post-cast zone, fitted around the outside of the main reinforcement bars.

[0013] In some possible implementations, the boss is smaller than the cross-sectional dimensions of the frame column and is coaxially arranged with the frame column.

[0014] In some possible implementations, the gaps formed by the two sets of frame columns in two adjacent sets of horizontally connected concrete MIC modules are filled with polystyrene boards or foam boards.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a horizontal connection structure in the horizontal direction and a vertical connection structure in the vertical direction to give it good seismic strength. This invention creates a post-pouring zone between two sets of frame columns by setting protrusions on the top surface of the frame columns, thereby effectively judging whether the corrugated pipe concrete is poured densely and greatly improving the construction quality. This utility model has a simple structure and is highly practical. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure for connecting two sets of concrete MIC modules using the horizontal connection method of this utility model; Figure 2 This is a structural diagram of the vertical connection structure in this utility model; Figure 3 A side view of the concrete MIC module connected using the horizontal connection structure of this utility model; Among them: 10, floor slab; 20, frame column; 30, main reinforcement; 100, connection zone; 200, horizontal connection structure; 1, insulation board; 2, steel beam mesh; 21, embedded reinforcement; 22, connecting reinforcement; 3, post-cast concrete layer; 4, corrugated pipe; 5, boss; 6, closed formwork; 7, stirrups. Detailed Implementation

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the existence of at least one. In the implementation of this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more. For example, multiple positioning posts refer to two or more positioning posts. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] The present invention will now be described in detail.

[0019] The concrete MIC module of this utility model includes a floor slab 10, a frame column 20, and side beams 30 that are respectively connected to the floor slab 10 and the frame column 20. Taking the square floor slab 10 as an example, the frame column 20 is set at the corner, and the side beam 30 is set between two adjacent sets of frame columns 20 and connected to the bottom of the floor slab 10.

[0020] like Figures 1-3 As shown: A connection structure for concrete MIC modules, used for connecting two adjacent sets of concrete MIC modules, including a horizontal connection structure 200 for horizontal connection of the side beam 30 and the floor slab 10 in the two adjacent sets of concrete MIC modules. The horizontal connection structure 200 includes a groove between adjacent concrete MIC modules, an insulation board 1 installed in the groove, a post-cast concrete layer 3 set above the insulation board 1 and coplanar with the floor slab 10, and a steel mesh 2 set in the post-cast concrete layer 3 and connected to the concrete MIC modules. The steel mesh 2 includes pre-embedded steel bars 21 with one end embedded in the floor slab 10 and the side beam 30, and connecting steel bars 22 for connecting the pre-embedded steel bars 21 in two adjacent sets of concrete MIC modules. When connecting two sets of concrete MIC modules on the same floor, the two sets of concrete MIC modules are first hoisted according to the design requirements and placed in the designated position. Then, the insulation board 1 is installed in the groove formed on the adjacent side of the two to seal the gap between them. Then, the steel bar 22 is connected above the insulation board 1. The connecting steel bar 22 is connected to the pre-embedded steel bar 21 on the same side of the concrete MIC module to form a steel mesh 2. Finally, the concrete is poured to form a post-cast concrete layer 3 that is coplanar with the top surface of the floor slab 10, thus completing the horizontal connection of the two sets of concrete MIC modules. Compared with the existing technology that uses anchor bolts and pre-embedded steel plates for multi-point connection, this utility model allows the floor slab 10 and the edge beam 30 to be connected by a post-cast concrete layer 3 of the same length as the edge beam 30, which makes the connection more solid and reliable and has a good seismic effect.

[0021] In some possible implementations, the groove is T-shaped, with the top surface of the larger end of the groove coplanar with the top surface of the floor slab 10, and the smaller end of the groove near the larger end coplanar with the top surface of the side beam 30.

[0022] Specifically, during the fabrication of the concrete MIC module, inverted L-shaped grooves will be set on the outer side of the floor slab 10 and the edge beam 30. During the splicing and assembly, the two sets of inverted L-shaped grooves will form a T-shaped groove that is larger at the top and smaller at the bottom.

[0023] In some possible implementations, in order to effectively connect two vertically adjacent sets of MIC modules, the connection structure also includes a vertical connection structure for vertically connecting the frame columns 20 in the two vertically adjacent sets of concrete MIC modules. The vertical connection structure includes a corrugated pipe 4 installed inside the frame column 20 and a boss 5 installed on the top surface of the frame column 20 for supporting the upper frame column 20; the corrugated pipe 4 is installed vertically; a post-cast area is formed between two sets of vertically adjacent frame columns 20.

[0024] Specifically, during the prefabrication of the concrete MIC module, corrugated pipes 4 will be pre-embedded in the reinforcing cage of the frame column 20, with both ends of the corrugated pipes 4 penetrating the frame column 20; no concrete will be poured inside the corrugated pipes 4 during the prefabrication of the concrete MIC module; the corrugated pipes 4 are used for the passage of the main reinforcing bars 40 in the frame column 20. The main reinforcing bars 40 are then positioned. Before constructing the concrete MIC module for this layer, the main reinforcement 40 of this layer is first connected to the main reinforcement 40 of the lower layer; then the concrete MIC module is hoisted. After hoisting, the corresponding main reinforcement 40 will be fitted into the corrugated pipe 4; the bottom of the precast part of the frame column 20 will be supported by the protrusion 5 of the lower frame column 20, so that a post-pouring zone is formed between the two sets of adjacent frame columns 20; the post-pouring zone will be connected to the inside of the corrugated pipe 4; when the concrete is poured in the corrugated pipe 4, the post-pouring zone will be poured together. The setting of post-pouring will allow the air in the corrugated pipe 4 to be quickly discharged during the pouring, and at the same time, it can be used to judge whether the concrete in the corrugated pipe 4 is full, thus improving the quality of concrete pouring.

[0025] In some possible implementations, when the frame column 20 is a square column, the corrugated pipe 4 is in four sets, which are set at the corners of the frame column 20 and located outside the boss 5. After the vertically adjacent two sets of concrete MIC modules are assembled, the corrugated pipe 4 is fitted onto the outside of the main reinforcement 40 at the corners of the frame column 20.

[0026] In some possible implementations, to prevent concrete from leaking from the post-pouring zone during concrete pouring inside the corrugated pipe 4, a closed template 6 is provided on the outside of the post-pouring zone, and the closed template 6 is provided with vent holes communicating with the post-pouring zone.

[0027] Specifically, after assembly, a closed formwork 6 is installed on the outside of the post-pouring area, and the inner side of the closed formwork 6 is coplanar with the outer side of the frame column 20. Then, pouring is carried out from the top of the corrugated pipe 4. During pouring, the air in the corrugated pipe 4 will be discharged through the vent hole. When grout comes out of the vent hole, it means that the pouring is full. Then, the vent hole is sealed. During pouring, the column base formwork is tapped to ensure that the concrete is fully filled into the bottom of the column.

[0028] Preferably, the size of the vent hole is 1cm, the vertical height of the boss 5 is 5-10cm, the height of the closed template 6 is greater than the height of the boss 5, and the closed template 6 is made of aluminum; for example, when the height of the boss 5 is 7cm, the height of the closed template 6 is 15cm.

[0029] In some possible implementations, to prevent cracking of the concrete in the post-pouring zone, stirrups 7 are provided in the post-pouring zone and fitted around the outside of the main reinforcement 40. Specifically, during construction, the upper concrete MIC module is hoisted and the stirrups 7 are tied.

[0030] In some possible implementations, the size of the boss 5 is smaller than the cross-sectional size of the frame column 20 and is coaxially arranged with the frame column 20; this arrangement will provide support for the prefabricated part of the frame column 20 without affecting the subsequent pouring of corrugated pipe 4 and concrete in the post-pouring area.

[0031] In some possible implementations, the gaps formed by the two sets of frame columns 20 in two adjacent sets of horizontally connected concrete MIC modules are filled with polystyrene boards or foam boards to facilitate the later construction of the surface structure; the insulation board is a polystyrene board, foam board, or semi-rigid rock wool board.

[0032] A construction method based on the above-described connection structure of concrete MIC modules includes horizontal connection of two adjacent sets of concrete MIC modules in the horizontal direction and vertical connection of two adjacent sets of concrete MIC modules in the vertical direction; specifically, it includes the following steps: Main reinforcement 40 connection construction, stirrup 7 installation; The concrete MIC module is hoisted, and the corrugated pipe 4 is fitted into the main reinforcement 40 of the corresponding frame column 20. After the concrete MIC module is installed, the top of the main reinforcement 40 extends out of the corrugated pipe 4. Install insulation board 1 in the groove formed by two adjacent sets of concrete MIC modules on one side close to each other. Install the steel mesh 2 on the insulation board 1, and connect the steel mesh 2 to the pre-embedded steel bar 21; Concrete is poured onto insulation board 1; The post-pouring area formed by two vertically adjacent sets of concrete MIC modules is sealed with a closed formwork 6. Concrete is poured inside the corrugated pipe 4, and the sealing formwork 6 is tapped; whether the pouring is full is judged by whether grout comes out of the vent hole. If no grout comes out, continue pouring if the pouring is not full; If grout flows out, pour the grout until it is full, and then fill and seal the vent holes.

[0033] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A connection structure for concrete MIC modules, used for connecting two adjacent sets of concrete MIC modules, characterized in that, This includes horizontal connection structures for horizontal connections between edge beams and floor slabs in two adjacent sets of concrete MIC modules; The horizontal connection structure includes a groove between adjacent concrete MIC modules, an insulation board installed in the groove, a post-cast concrete layer set above the insulation board and coplanar with the floor slab, and a steel mesh set in the post-cast concrete layer and connected to the concrete MIC modules.

2. The connection structure of a concrete MIC module according to claim 1, characterized in that, The groove is T-shaped, with the top surface of the larger end of the groove coplanar with the top surface of the floor slab, and the side of the smaller end of the groove near the larger end coplanar with the top surface of the side beam.

3. The connection structure of a concrete MIC module according to claim 2, characterized in that, The steel mesh includes pre-embedded steel bars at one end in the floor slab and edge beam, and connecting steel bars for connecting the pre-embedded steel bars in two adjacent sets of concrete MIC modules.

4. The connection structure of a concrete MIC module according to any one of claims 1-3, characterized in that, It also includes vertical connection structures for vertically connecting frame columns in two adjacent sets of concrete MIC modules. The vertical connection structure includes a corrugated pipe installed inside the frame column and a boss installed on the top surface of the frame column for supporting the upper frame column; the corrugated pipe is installed vertically; a post-cast zone is formed between two sets of vertically adjacent frame columns.

5. The connection structure of a concrete MIC module according to claim 4, characterized in that, The size of the boss is smaller than the cross-sectional size of the frame column and is coaxial with the frame column.

6. The connection structure of a concrete MIC module according to claim 4, characterized in that, The corrugated pipes are in four groups, installed on the frame column and located on the outside of the boss; After the two adjacent sets of concrete MIC modules are assembled vertically, the corrugated pipe is fitted onto the outside of the main reinforcement in the frame column.

7. The connection structure of a concrete MIC module according to claim 4, characterized in that, A closed template is provided on the outside of the post-pouring area, and the closed template is provided with vent holes that communicate with the post-pouring area.

8. The connection structure of a concrete MIC module according to claim 4, characterized in that, Stirrups are provided in the post-cast area, fitted onto the outside of the main reinforcement bars.

9. The connection structure of a concrete MIC module according to claim 4, characterized in that, The gaps formed by the two sets of frame columns in two adjacent sets of horizontally connected concrete MIC modules are filled with polystyrene boards or foam boards.

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