Concrete module
By designing concrete modules of embedded steel bars and grouting channels, using U-shaped extended steel bars and extended steel bars for on-site connection, and filling high-strength grouting materials, the problems of large support demand, large wet workloads and low assembly efficiency at the joints of the nodes of concrete modular building are solved, and an efficient and efficient assembly process is achieved.
Patent Information
- Application Number
- CN202421275055.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The existing concrete modular buildings have problems such as large support demand, high wet workload and low assembly efficiency at node connections.
A concrete module is designed, including embedded steel bars and grouting holes, which are connected on site by U-shaped extension steel bars in the edge member area and extruded steel bars in the non-edge member area, and high-strength grouting material is poured into the connection area.
It achieves efficient assembly without support and less wet operations, shortens construction period and reduces measure fees.
Smart Images
Figure CN222667046U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of assembled structures, and in particular to a concrete module. Background Art
[0002] Prefabricated buildings have become an important direction for achieving green buildings and industrialization due to their short construction period and low environmental impact. However, with the development of prefabrication, traditional prefabricated components have problems such as difficulty in alignment, difficulty in detecting grouting fullness, and low assembly rate. Modular buildings are currently the most assembled and industrialized prefabricated buildings, which can solve the above problems to a certain extent, and are therefore gradually developing.
[0003] In terms of main materials, domestic modular buildings are mainly steel structure modular buildings and concrete modular buildings. Compared with steel structure modular buildings, concrete modular buildings have advantages such as good thermal insulation, heat insulation, and sound insulation, and have better market prospects. However, the current concrete module system technology is still imperfect, and there are certain problems with the existing box connection form. The workload of casting at the nodes is large, and a large number of templates and supports are required. Therefore, how to connect nodes, avoid support as much as possible, have no (less) wet operations, and efficiently assemble are issues that need to be urgently solved in concrete modular buildings. Utility Model Content
[0004] The present disclosure aims to solve at least one of the technical problems existing in the prior art.
[0005] To this end, the present disclosure proposes a concrete module that does not require support and has less on-site wet work, which can effectively reduce on-site assembly time and achieve efficient assembly.
[0006] In order to achieve the above objectives, the present disclosure adopts the following technical solutions:
[0007] The present disclosure provides a concrete module, comprising a fixedly connected wall and a floor slab located on the top of the wall, wherein the wall and the floor slab each comprise a concrete body and steel bars embedded in the concrete body, and the wall is divided into an edge component area and a non-edge component area;
[0008] The vertical steel bars in the edge component area extend outward from the top and bottom of the concrete body in the edge component area to form first wall top extended bars and wall bottom extended bars respectively, and a first grouting channel for pouring grout is reserved in the concrete body in the edge component area;
[0009] The vertical steel bars in the non-edge component area extend outward from the top of the concrete body in the non-edge component area to form second wall top extending bars. A plurality of second grouting holes for pouring grouting are reserved in the concrete body of the non-edge component area, and each second wall top extending bar is respectively consistent with the horizontal position of a corresponding second grouting hole.
[0010] In some embodiments, the first wall top extending reinforcement and the wall bottom extending reinforcement are both in a closed U-shape.
[0011] In some embodiments, the spacing between the first wall top extended bars and the wall bottom extended bars is consistent with the spacing between the vertical steel bars in the concrete body of the edge member area, and the extending lengths of the first wall top extended bars and the wall bottom extended bars are not less than 1.2 times the seismic anchoring length.
[0012] In some embodiments, the upper surfaces of the wall of the edge member area and the non-edge member area are flush, and the lower surface of the wall of the edge member area is higher than the lower surface of the wall of the non-edge member area, so as to form an operating space at the bottom of the edge member area for on-site connection of the first wall top external reinforcement and the wall bottom external reinforcement and serve as a post-casting area.
[0013] In some embodiments, the second wall top outwardly extending reinforcement is in a straight line shape.
[0014] In some embodiments, the spacing of the second wall top extending bars is twice the spacing of the vertical steel bars in the concrete body in the non-edge member area, and the second wall top extending bars are arranged in a plum blossom shape, and the extending length of the second wall top extending bars is not less than 1.3 times the seismic anchor length.
[0015] In some embodiments, the spacing between the second wall top extending reinforcements is 400 mm to 600 mm.
[0016] In some embodiments, the floor slabs are composite slabs or fully prefabricated floor slabs.
[0017] In some embodiments, the first grouting channel and the second grouting channel are arranged along the vertical length of the wall for pouring grouting on site, the cross-sectional size of the first grouting channel and the second grouting channel is 50mm to 80mm, and the grouting material is high-strength grouting material.
[0018] In some embodiments, two adjacent concrete modules located in the upper and lower layers are connected by respectively extending the second wall top extending bars of the concrete module located in the lower layer into corresponding second grouting holes of the concrete module located in the upper layer, and reserving a space as a horizontal post-cast strip or a post-cast ring beam between the non-edge component areas of the upper and lower layers. The wall bottom extending bars are connected to the first wall top extending bars on site and a formwork is set in the connection area. Grout is poured into the first grouting hole and the second grouting hole and concrete is cast in place. After the slurry and concrete are cured, the vertical connection of the two adjacent concrete modules is achieved.
[0019] The present disclosure has the following beneficial effects:
[0020] (1) The prefabricated module has a simple structure and is easy to produce.
[0021] (2) Heavy machinery can be used to hoist the structure at the module construction site, which can save a lot of manpower and the assembly progress is predictable, which is convenient for project cycle control.
[0022] (3) Prefabricated modules do not require support during assembly, which can shorten construction time and reduce construction costs.
[0023] (4) The connection nodes between the upper and lower layers of the module only require side formwork, which reduces the amount of wet work on site and makes assembly efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 A schematic elevation view of a concrete module provided in an embodiment of the present disclosure.
[0025] Figure 2 A three-dimensional schematic diagram of a concrete module provided in an embodiment of the present disclosure.
[0026] Figure 3 (a) and (b) are detailed views of the connection structure of a concrete module at the upper and lower layer edge member nodes provided by an embodiment of the present disclosure.
[0027] Figure 4 (a) and (b) are detailed views of the connection structure of a concrete module at the upper and lower non-edge component nodes provided by an embodiment of the present disclosure.
[0028] Reference numerals:
[0029] 1. Edge member area; 11. First wall top extended reinforcement; 12. Wall bottom extended reinforcement; 13. First grouting channel; 14. Overlap connection between wall bottom extended reinforcement and first wall top extended reinforcement; 2. Non-edge member area; 21. Vertical reinforcement in non-edge member area; 22. Second grouting channel; 23. Second wall top extended reinforcement; 3. Floor slab; 4. Space used as horizontal post-cast strip or post-cast ring beam. DETAILED DESCRIPTION
[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, but cannot be understood as limiting the present application.
[0031] Reference below Figure 1-Figure 4 A concrete module according to an embodiment of the present disclosure is described.
[0032] See also Figure 1 and Figure 2 A concrete module provided by an embodiment of the present disclosure includes four walls that are fixedly connected (the number of walls may also be other numbers according to design requirements, such as two or three) and a floor slab 3 located on the top of the walls, each of the walls and the floor slab respectively includes a concrete body and steel bars embedded in the concrete body (it should be noted that the steel bars embedded in the concrete body include transverse steel bars and longitudinal steel bars, Figure 1 , Figure 3 and Figure 4 The transverse reinforcement inside the wall is omitted, and only the longitudinal reinforcement is schematically drawn). The wall is divided into an edge component area 1 and a non-edge component area 2. The vertical reinforcement of the edge component area 1 extends outward from the top and bottom of the concrete body of the edge component area 1 to form a first wall top extension bar 11 and a wall bottom extension bar 12 respectively. The concrete body of the edge component area 1 is reserved with a first grouting channel 13 for pouring grout; the vertical reinforcement 21 of the non-edge component area 2 extends outward from the top of the concrete body of the non-edge component area 2 to form a second wall top extension bar 23. The concrete body of the non-edge component area 2 is reserved with a plurality of second grouting channels 22 for pouring grout, and each second wall top extension bar is consistent with the horizontal position of a corresponding second grouting channel 22.
[0033] In some embodiments, the first top wall extension bar 11 and the bottom wall extension bar 12 of the edge member area 1 are both in a closed U-shape. More specifically, the first top wall extension bar 11 and the bottom wall extension bar 12 are both closed structures at the end away from the wall edge. The extension length of the first top wall extension bar 11 and the bottom wall extension bar 12 is not less than 1.2 times the seismic anchor length. The spacing between the first top wall extension bar 11 and the bottom wall extension bar 12 is consistent with the spacing between the vertical steel bars in the concrete body of the edge member area 1, and should meet the force and structural requirements of the edge member.
[0034] Furthermore, the upper surface of the wall of the edge component area 1 and the non-edge component area 2 is flush; the lower surface of the wall of the edge component area 1 is higher than the lower surface of the wall of the non-edge component area 2, so as to form an operating space for on-site binding and connection of the first wall top external reinforcement 11 and the wall bottom external reinforcement 12 at the bottom of the edge component area 1 and serve as a post-casting area. After the first wall top external reinforcement 11 and the wall bottom external reinforcement 12 are connected, it is necessary to arrange a template supported on the lower concrete module outside the operating space to cast concrete. Optionally, the lower surface of the wall of the edge component area 1 is 300mm higher than the lower surface of the wall of the non-edge component area 2.
[0035] In some embodiments, the second wall top extended reinforcement 23 of the non-edge component area 2 is in a straight line shape. Since the extended reinforcements of the non-edge component area 2 are indirectly overlapped, the extended length thereof is set to be not less than 1.3 times the seismic anchor length according to the test results. The spacing of the second wall top extended reinforcement 23 is generally 400 mm to 600 mm, which is twice the spacing of the vertical reinforcement 21 in the concrete body of the non-edge component area 2, and the second wall top extended reinforcement 23 is arranged in a plum blossom shape, which can reduce the number of reinforcement overlaps.
[0036] In some embodiments, the floor slab 3 can be a composite slab or a fully prefabricated slab according to site needs, without any special requirements.
[0037] In some embodiments, the first grouting hole 13 and the second grouting hole 22 are arranged along the vertical length of the wall, and are used for pouring grout on site, and the grout is a high-strength grout. Optionally, the first grouting hole 13 and the second grouting hole 22 are circular holes with a diameter of 50 mm to 80 mm.
[0038] In some embodiments, see Figure 3 and Figure 4 When assembling two adjacent concrete modules located in the upper and lower layers, first lift the upper concrete module, align each second grouting channel 22 of the non-edge component area 2 of the upper concrete module with a corresponding second wall top extension bar 23 of the non-edge component area 2 of the lower concrete module, and lower it to the top of the lower concrete module, so that the second wall top extension bar 23 of the lower layer extends into a corresponding second grouting channel 22 in the upper wall. At the same time, a space 4 is reserved between the non-edge component areas 2 of the upper and lower layers as a horizontal post-cast strip or post-cast ring beam; then, the upper and lower U-shaped wall bottom extension bars 12 and the first wall top extension bars 11 of the edge component area 1 are tied on site to overlap and connect the two 14 and arrange the formwork, and finally, high-strength grouting material is poured through the first grouting channel 13 and the second grouting channel 22 reserved in the wall, and concrete is cast in place, and the vertical connection of the two adjacent concrete modules is realized after the grouting material and concrete are cured.
[0039] It can be understood that the concrete module provided by the embodiment of the present disclosure has U-shaped extended steel bars reserved at the bottom and top of the wall in the edge component area, extended steel bars reserved at the top of the wall in the non-edge component area, and long grouting channels reserved in the wall in the edge component area and the non-edge component area. When grouting, it is directly injected from the grouting channel of the upper concrete module to cast it into one piece; when the upper and lower concrete modules are connected, the edge component area is tied and grouted by the U-shaped extended steel bars, and the non-edge component area is connected by inserting the extended steel bars at the top of the lower wall into the grouting channel and pouring grouting material. The concrete module provided by the embodiment of the present disclosure can meet the seismic design requirements of general multi-story structures, has a simple structure, and has a small demand for temporary support and wet operations. The modules to be formed are assembled in the factory through prefabrication, and the assembly process is fast at the construction site. Heavy machinery is used to hoist the structure, saving a lot of labor and time, and can significantly give play to the advantages of prefabricated structures in terms of economy, environmental protection, and efficiency.
[0040] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0041] In addition, the terms "first" and "second" are only used for distinction and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0042] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0043] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0044] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0045] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present application. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present application.
Claims
1. A concrete module, characterized in that: It comprises a fixedly connected wall and a floor slab located on the top of the wall, wherein the wall and the floor slab respectively comprise a concrete body and steel bars embedded in the concrete body, and the wall is divided into an edge component area and a non-edge component area; The vertical steel bars in the edge component area extend outward from the top and bottom of the concrete body in the edge component area to form first wall top extended bars and wall bottom extended bars respectively, and a first grouting channel for pouring grout is reserved in the concrete body in the edge component area; The vertical steel bars in the non-edge component area extend outward from the top of the concrete body in the non-edge component area to form second wall top extending bars. A plurality of second grouting holes for pouring grouting are reserved in the concrete body of the non-edge component area, and each second wall top extending bar is respectively consistent with the horizontal position of a corresponding second grouting hole.
2. The concrete module according to claim 1, characterized in that The first wall top outwardly extending reinforcement and the wall bottom outwardly extending reinforcement are both in a closed U shape.
3. The concrete module according to claim 1, characterized in that The spacing between the first wall top extended bars and the wall bottom extended bars is consistent with the spacing between the vertical steel bars in the concrete body in the edge member area, and the extended lengths of the first wall top extended bars and the wall bottom extended bars are not less than 1.2 times the seismic anchor length.
4. The concrete module according to claim 1, characterized in that The upper surfaces of the wall in the edge component area and the non-edge component area are flush, and the lower surface of the wall in the edge component area is higher than the lower surface of the wall in the non-edge component area, so as to form an operating space at the bottom of the edge component area for on-site connection of the first wall top external extension bars and the wall bottom external extension bars and serve as a post-casting area.
5. The concrete module according to claim 1, characterized in that: The second wall top outwardly extending reinforcement is in a straight line shape.
6. The concrete module according to claim 1, characterized in that: The spacing of the second wall top extended bars is twice the spacing of the vertical steel bars in the concrete body in the non-edge member area, and the second wall top extended bars are arranged in a plum blossom shape, and the extended length of the second wall top extended bars is not less than 1.3 times the seismic anchor length.
7. The concrete module according to claim 1, characterized in that The spacing between the second wall top extending reinforcements is 400 mm to 600 mm.
8. The concrete module according to claim 1, characterized in that: The floor slab is a composite slab or a fully prefabricated floor slab.
9. The concrete module according to claim 1, characterized in that: The first grouting channel and the second grouting channel are both arranged along the vertical length of the wall and are used for pouring grouting on site. The cross-sectional size of the first grouting channel and the second grouting channel is 50mm-80mm, and the grouting material is high-strength grouting material.
10. The concrete module according to any one of claims 1 to 9, characterized in that: For two adjacent concrete modules located in the upper and lower layers, the second wall top extending bars of the concrete module located in the lower layer are respectively extended into corresponding second grouting channels of the concrete module located in the upper layer, and a space as a horizontal post-cast strip or a post-cast ring beam is reserved between the non-edge component areas of the upper and lower layers, the wall bottom extending bars are connected with the first wall top extending bars on site and a formwork is set in the connection area, grout is poured into the first grouting channel and the second grouting channel and concrete is cast in place, and the vertical connection of the two adjacent concrete modules is achieved after the slurry and concrete are cured.