Shear wall structure based on 3D printing
By using 3D printing technology to set up a ring-shaped skeleton and steel mesh between the inner and outer formwork of the shear wall, the problem of formwork support for irregular shear walls was solved, improving construction efficiency and overturning resistance.
Patent Information
- Application Number
- CN202423234864.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing shear wall construction techniques are difficult to meet the requirements of irregular designs, especially for curved shear walls where formwork support is difficult and the risk of formwork overturning is high during the pouring process.
The inner and outer mold shells are manufactured using 3D printing technology, and a ring-shaped skeleton, a straight skeleton, a ring-shaped steel mesh, and a grid steel mesh are set between them. Multiple casting zones are formed by molding with ultra-high performance concrete to improve the connection strength and overturning resistance.
It enables the construction of shear walls of various shapes without the need for complex formwork, reduces the use of formwork materials, and improves the overturning resistance and construction efficiency of shear walls.
Smart Images
Figure CN223853627U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building structure technical field, specifically, relate to a shearing force wall structure based on 3D printing. BACKGROUND
[0002] Shearing force wall as the main load-bearing component in building house, must satisfy the design requirement of bearing capacity. It is also usually required to pass through steel bar binding, and pours after the formwork is completed. But due to the restriction of shearing force wall construction technology, it is difficult to meet the requirements of the shearing force wall of some special-shaped design houses, especially for irregular arc shearing force wall, the formwork is not only difficult, needs to cut a large number of templates to carry out formwork, not only waste material but also time and effort.
[0003] Although the inner form shell and the outer form shell of the shearing force wall are printed by 3D printing technology in the prior art, the pouring area between the inner form shell and the outer form shell is poured with a large amount of concrete, and the form shell is overturned. UTILITY MODEL CONTENT
[0004] Therefore, the utility model aims at providing a shearing force wall structure based on 3D printing to solve the above problems.
[0005] The utility model adopts the following scheme:
[0006] The application provides a shearing force wall structure based on 3D printing, which comprises an inner form shell and an outer form shell printed by concrete, a first pouring area is formed between the inner form shell and the outer form shell, a plurality of annular skeletons for connecting the inner form shell and the outer form shell are arranged in the pouring area and printed by concrete, a second pouring area is formed in the annular skeleton, two parallel linear skeletons are arranged between the two annular skeletons, a third pouring area is formed between the two linear skeletons and communicates with the second pouring area, an annular steel mesh is arranged in the second pouring area, and a grid steel mesh is arranged in the third pouring area; and concrete is poured in the pouring areas.
[0007] Further, the two linear skeletons are inclinedly connected between the two annular skeletons.
[0008] Further, a protruding portion is arranged on one side of the inner form shell and the outer form shell facing the first pouring area, and a fourth pouring area is formed in the protruding portion.
[0009] Further, the inner form shell, the outer form shell, the annular skeleton, the linear skeleton and the protruding portion are formed by 3D printing using ultra-high performance concrete.
[0010] Further, the ring-shaped reinforcement mesh comprises a plurality of ring-shaped reinforcements arranged in a vertical direction, the ring-shaped reinforcements being adapted to the second pouring area, and a first vertical reinforcement surrounding the ring-shaped reinforcements.
[0011] Further, the grid reinforcement mesh comprises a plurality of second horizontal reinforcements arranged in a vertical direction, and a plurality of second vertical reinforcements arranged in a horizontal direction and connected to the second horizontal reinforcements.
[0012] By adopting the technical scheme, the following technical effects can be achieved:
[0013] The utility model provides a kind of shear wall structure based on 3D printing, it is printed with inner form and outer form by printing technology, it can be suitable for various shapes of shear wall, without being carried out complex formwork, greatly reduce the use of formwork material;And it is arranged in the first pouring area between inner form and outer form and is printed with the ring-shaped framework connecting inner form and outer form, second pouring area is formed in ring-shaped framework;And two parallel straight line frameworks are connected and arranged between two ring-shaped frameworks, to form the third pouring area that communicates second pouring area;It is arranged with ring-shaped reinforcement mesh in second pouring area, and it is arranged with grid reinforcement mesh in third pouring area;The connection between inner form and outer form is improved by the arrangement of ring-shaped framework and straight line framework, and first pouring area is divided into multiple pouring areas, and the overturning resistance of shear wall in subsequent construction phase is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced to the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying creative labor, other related drawings can also be obtained according to these drawings.
[0015] Figure 1 It is the structure schematic diagram of a kind of shear wall structure based on 3D printing of the utility model embodiment;
[0016] Figure 2 It is the overhead structure schematic diagram of a kind of shear wall structure based on 3D printing of the utility model embodiment;
[0017] Figure 3 It is the form and framework structure schematic diagram of a kind of shear wall structure based on 3D printing of the utility model embodiment;
[0018] Figure 4 It is the grid reinforcement mesh structure schematic diagram of a kind of shear wall structure based on 3D printing of the utility model embodiment;
[0019] Figure 5 This is a schematic diagram of a ring-shaped steel reinforcement structure for a shear wall structure based on 3D printing, according to an embodiment of this utility model.
[0020] Icons: Outer mold shell 1, Inner mold shell 2, Straight skeleton 3, Ring skeleton 4, Protrusion 5, Second transverse reinforcement 6, Second vertical reinforcement 7, Ring reinforcement 8, First vertical reinforcement 9, First pouring area 10, Second pouring area 11, Third pouring area 12, Fourth pouring area 13. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. 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. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected 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.
[0022] Example
[0023] Combination Figure 1 and Figure 5 As shown, this embodiment provides a 3D-printed shear wall structure, including an inner mold shell 2 and an outer mold shell 1 printed from concrete. A first casting zone 10 is formed between the inner mold shell 2 and the outer mold shell 1. The structure also includes multiple annular skeletons 4 printed from concrete and connected to the inner mold shell 2 and the outer mold shell 1, each annular skeleton 4 forming a second casting zone 11. Two parallel straight skeletons 3 are connected between the two annular skeletons 4. A third casting zone 12, connecting the second casting zone 11, is formed between the two straight skeletons 3. A ring-shaped steel mesh is provided in the second casting zone 11, and a grid steel mesh is provided in the third casting zone 12. Concrete is poured into the casting zones.
[0024] The inner shell 2 and the outer shell 1 are printed by printing technology, which can be applied to shear walls of various shapes, without complex formwork, greatly reducing the use of formwork materials; and the annular framework 4 connecting the inner shell 2 and the outer shell 1 is arranged in the first pouring area 10 between the inner shell 2 and the outer shell 1, and the second pouring area 11 is formed in the annular framework 4; and two parallel linear frameworks 3 are arranged between two annular frameworks 4 to form the third pouring area 12 communicating with the second pouring area 11; the annular steel mesh is arranged in the second pouring area 11, and the grid steel mesh is arranged in the third pouring area 12; the connection between the inner shell 2 and the outer shell 1 is improved by the arrangement of the annular framework 4 and the linear framework 3, and the first pouring area 10 is divided into multiple pouring areas, thereby improving the overturning resistance of the shear wall in the subsequent construction stage.
[0025] Hereinafter, the shear wall in the shape of D is taken as an example for specific description.
[0026] In the embodiment, the inner shell 2 and the outer shell 1 in the shape of D are formed, and the first pouring area 10 is formed between the inner shell 2 and the outer shell 1. A plurality of circular annular frameworks 4 are arranged in the first pouring area 10 along the D-shaped contour, and the annular frameworks 4 are connected with the inner shell 2 and the outer shell 1; the second pouring area 11 is formed in the annular framework 4. Two linear frameworks 3 are arranged between two adjacent annular frameworks 4, and the third pouring area 12 communicating with the second pouring area 11 is formed between the two linear frameworks 3. In the embodiment, one end of the two linear frameworks 3 is connected to the annular framework 4 close to the inner shell 2, and the other end is connected to the annular framework 4 close to the outer shell 1.
[0027] In the embodiment, the annular framework 4 is provided with an annular steel mesh, which includes annular steel bars 8 matched with the second pouring area 11, the annular steel bars 8 being circular steel bars arranged at intervals in the vertical direction; and a plurality of first vertical steel bars 9 arranged at intervals around the annular steel bars 8. The grid steel mesh is arranged in the third pouring area 12; which includes a plurality of second horizontal steel bars 6 arranged at intervals in the vertical direction and a plurality of second vertical steel bars 7 arranged at intervals in the horizontal direction and connected to the second horizontal steel bars 6.
[0028] In the embodiment, the inner shell 2 and the outer shell 1 are provided with protrusions 5 on the side facing the first pouring area 10, and the fourth pouring area 13 is formed in the protrusions 5. The protrusions 5 are in the shape of T as a whole, which increases the equivalent thickness of the formwork and enhances the integrity of the formwork and the post-poured concrete.
[0029] It should be noted that the inner shell 2, the outer shell 1, the annular skeleton 4, the straight skeleton 3 and the protruding part 5 are formed by 3D printing with ultra-high performance concrete.
[0030] The construction method of the D-shaped shear wall in the embodiment is specifically described below, including the following steps:
[0031] S1: The ultra-high performance concrete is made and transported to the 3D concrete printer, and the outer shell 1, the inner shell 2, the straight skeleton 3, the annular skeleton 4 and the protruding part 5 of the layer height of the transverse steel bar are printed according to the printing path planned by the computer;
[0032] S2: At the set height, the annular steel bar 8 and the second transverse steel bar 6 are fixed at the designed position by lacing wire;
[0033] S3: The steps of S1 and S2 are repeated until the complete shear wall height is printed, and then the first vertical steel bar 9 and the second vertical steel bar 7 are placed into the second pouring area 11 and the third pouring area 12 from the top, and are fixed at the designed position by lacing wire.
[0034] S4: When the 3D printed concrete shell is formed to meet the design strength requirement, the concrete is poured and vibrated in the first pouring area 10, the second pouring area 11, the third pouring area 12 and the fourth pouring area 13, and finally the construction process of the whole shear wall structure is completed.
[0035] The lacing wire fixing described above is that when the layer of concrete of the transverse steel bar is printed, the lacing wire is tied at both ends of the annular steel bar 8, and the other end of the lacing wire is embedded into the 3D printed concrete shell, and the next layer of 3D printed concrete is started to be printed. Similarly, the second transverse steel bar 6 is also fixed in this way, so that the transverse steel bar can be firmly fixed at the designed position.
[0036] The preferred embodiments of the utility model are described above, and the protection scope of the utility model is not limited to the above-mentioned embodiments only, and any technical solution belonging to the idea of the utility model belongs to the protection scope of the utility model.
[0037] In the description of the utility model, it should be understood that the directions or position relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as limiting or implying that the indicated devices or elements must have a particular direction, be constructed and operated in a particular direction, therefore, it cannot be understood as limiting the utility model.
[0038] Furthermore, the terms "first", "second", etc. are used only for descriptive purposes and are not to be taken in a literal sense under the context of relative importance or to imply a quantity of the specified technical features. Thus, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more than two, unless otherwise specifically defined.
[0039] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0040] In the present application, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or it can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical direction of the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "lower", "lower" and "lower" of the first feature to the second feature include the vertical direction of the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
Claims
1. A 3D printing based shear wall structure comprising a concrete printed inner formwork and an outer formwork, a first casting zone being formed between the inner formwork and the outer formwork, characterized in that, The inner formwork and the outer formwork are provided with protrusions on the side facing the first pouring area, and the protrusions form fourth pouring areas.
2. The 3D printing based shear wall structure according to claim 1, wherein, The inner formwork, the outer formwork, the ring-shaped framework, the linear framework and the protrusions are formed by 3D printing using ultra-high performance concrete.
3. The 3D printing based shear wall structure according to claim 1, wherein, The ring-shaped reinforcement net comprises a plurality of ring-shaped steels arranged in the vertical direction, the ring-shaped steels are matched with the second pouring area, and the first vertical steels are arranged around the ring-shaped steels.
4. The 3D printing based shear wall structure according to claim 3, wherein, The grid reinforcement net comprises a plurality of second horizontal steels arranged in the vertical direction and a plurality of second vertical steels arranged in the horizontal direction and connected to the second horizontal steels.
5. The 3D printing based shear wall structure according to claim 1, wherein, The inner formwork and the outer formwork are provided with protrusions on the side facing the first pouring area, and the protrusions form fourth pouring areas.
6. The 3D printing based shear wall structure according to claim 4, wherein, The inner formwork, the outer formwork, the ring-shaped framework, the linear framework and the protrusions are formed by 3D printing using ultra-high performance concrete. The ring-shaped reinforcement net comprises a plurality of ring-shaped steels arranged in the vertical direction, the ring-shaped steels are matched with the second pouring area, and the first vertical steels are arranged around the ring-shaped steels. The grid reinforcement net comprises a plurality of second horizontal steels arranged in the vertical direction and a plurality of second vertical steels arranged in the horizontal direction and connected to the second horizontal steels.