CN111379360A - On-site 3D printed wall column structure and construction method thereof - Google Patents
On-site 3D printed wall column structure and construction method thereof Download PDFInfo
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- CN111379360A CN111379360A CN202010185855.1A CN202010185855A CN111379360A CN 111379360 A CN111379360 A CN 111379360A CN 202010185855 A CN202010185855 A CN 202010185855A CN 111379360 A CN111379360 A CN 111379360A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/64—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of concrete
- E04B2/68—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of concrete made by filling-up wall cavities
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
A wall column structure printed in a 3D mode on site and a construction method of the wall column structure comprise a concrete structure bottom plate, embedded steel bars, a hole lintel, a structural column steel reinforcement cage, a 3D printed outer wall body, a 3D printed inner wall body rib and cast-in-place column concrete. According to the invention, 3D printing special equipment is adopted to carry out construction of the 3D printing wall body, the structural column and the 3D printing wall body form an integral structure by using the 3D printing opening prefabricated part for plugging after the structural column steel reinforcement cage is installed through the reserved hole and finally pouring cast-in-place concrete. The invention solves the problems of poor integrity and low structural safety of the on-site 3D printing building, improves the structural stability of the on-site 3D printing building technology, and ensures the construction quality.
Description
Technical Field
The invention belongs to the field of building construction, and particularly relates to a wall column structure printed in a 3D mode on site and a construction method thereof.
Background
The concrete mortar 3D printing equipment can not carry out the on-site printing construction around the reinforcement cage that has already been under construction, consequently, the production of 3D printing prefabricated component is carried out at the mill to present 3D printing building mostly adoption, the form of assembling is carried out at the job site, this kind of construction form has not only increased the construction process of assembling on the spot, does not embody the characteristics that 3D printed building wisdom was built, and the installation of assembling the node has influenced the wholeness of building to a certain extent, has increased the manufacturing cost of building, influences the construction quality of building.
Disclosure of Invention
The invention aims to provide a wall column structure for on-site 3D printing and a construction method thereof, and aims to solve the problems that the existing 3D printing equipment cannot perform on-site printing construction around a constructed reinforcement cage, only spliced nodes can be adopted, the building cost is high, the construction quality is influenced, the structural column for on-site 3D printing construction has poor building integrity and low structural safety.
In order to achieve the purpose, the invention adopts the following technical scheme:
a wall column structure printed in a 3D mode on site comprises a concrete structure bottom plate, embedded steel bars, a hole lintel, a structure column steel reinforcement cage, a 3D printed outer wall body, a 3D printed inner wall body, a 3D printed wall body inner rib and cast-in-place column concrete, wherein the structure column steel reinforcement cage comprises vertical main steel bars and horizontal steel bars,
the 3D printing outer wall body and the 3D printing inner wall body are both L-shaped in the same shape, the 3D printing inner wall body is positioned on the inner side of the 3D printing outer wall body, the corner part of the 3D printing inner wall body and two 3D printing wall body inner ribs jointly enclose to form a column template for pouring cast-in-place column concrete, two ends of the 3D printing wall body inner rib are fixedly connected to the outer side of the 3D printing inner wall body and the inner side of the 3D printing outer wall body respectively,
the 3D printing inner wall body comprises a bottom reserved hole and a hole prefabricated blocking block, the bottom reserved hole is formed by two side wall bodies cut at the bottom corners of the 3D printing inner wall body and an L-shaped hole lintel with two ends falling on the upper sides of the two side wall bodies at the cut part, the thickness of the L-shaped hole lintel is equal to that of each layer of printing of the 3D printing inner wall body, the width of the L-shaped hole lintel is equal to that of the 3D printing inner wall body,
the size of the hole prefabricated plugging block is adapted to the size of the reserved hole at the bottom, the splicing seams between the periphery of the hole prefabricated plugging block and the reserved hole at the bottom are bonded by a sealing material,
a group of embedded steel bars are embedded in the concrete structure bottom plate in the enclosing range of the column template, the number of the embedded steel bars is the same as that of the vertical main bars, the bottom of the embedded steel bars is embedded in the concrete structure bottom plate, the top of the embedded steel bars extends out of the upper side of the concrete structure bottom plate,
the bottom of the vertical main reinforcement is placed on the upper side of the concrete structure bottom plate and fixedly connected to one side of the embedded steel bars, and cast-in-place column concrete is poured in the column template and wraps the embedded steel bars and the structural column steel bar cage which are exposed out of the upper side of the concrete structure bottom plate.
The height of the reserved hole in the bottom is higher than the height of the top of the embedded steel bar extending out of the upper side of the concrete structure bottom plate, and the height of the reserved hole in the bottom is 40 cm.
The material that 3D printed outer wall body, 3D printed interior wall body and 3D printed the interior rib of wall body is concrete or mortar.
The 3D prints outer wall body, the 3D prints interior wall body and 3D prints wall body inner rib and is formed through the integrative construction of on-the-spot 3D printing apparatus.
The bottom of the embedded steel bar is embedded into the concrete structure bottom plate and fixedly connected with the steel bar of the concrete structure bottom plate in a welding or binding mode, and the height of the top of the embedded steel bar exposed out of the concrete structure bottom plate is 20 cm.
The sealing slurry material is cement mortar.
The strength grade of the cast-in-place column concrete is C25-C40.
The inner end of the 3D printing wall inner rib is fixedly connected with the end parts of the 3D printing inner wall body at two sides of the reserved hole at the bottom.
The diameter of the vertical main reinforcement is the same as that of the embedded steel bar, and the lap joint length is not less than 8 times of the diameter of the steel bar.
A construction method of a wall column structure for on-site 3D printing comprises the following steps:
firstly, constructing a concrete structure bottom plate, wherein embedded steel bars are embedded in the positions of structural columns;
step two, 3D printing outer wall body, 3D printing inner wall body and 3D printing inner wall body inner rib construction are carried out by using special 3D printing construction equipment, and a column template is formed at the corner; reserving a hole at the bottom of a lower layer when the inner wall is printed in a 3D mode;
step three, supporting an L-shaped hole lintel on the reserved hole at the bottom, placing two ends of the L-shaped hole lintel on wall bodies at two sides of the reserved hole at the bottom, and temporarily and vertically supporting the center of the bottom of the L-shaped hole lintel by adopting a lintel bracket;
stopping the 3D printing construction until the height of the single layer is reached, and waiting until the strength of the wall body meets the requirement;
taking out the lintel bracket, inserting the lintel bracket into the assembled structural column reinforcement cage, wherein each vertical main reinforcement of the reinforcement cage is respectively contacted with the embedded reinforcement, and the bottom of the reinforcement cage is contacted with the concrete structure bottom plate;
step six, welding the structural column reinforcement cage and the embedded steel bars firmly through a hole reserved in the bottom;
seventhly, manufacturing a hole prefabricated plugging block by using special 3D printing construction equipment, placing the hole prefabricated plugging block into the reserved hole at the bottom, and sealing the splicing seam by adopting a sealing material;
and step eight, pouring cast-in-place column concrete and vibrating, maintaining after pouring is finished, and finishing construction.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
according to the invention, 3D printing special equipment is adopted to carry out construction of the 3D printing wall body, the structural column and the 3D printing wall body form an integral structure by using the 3D printing opening prefabricated part for plugging after the structural column steel reinforcement cage is installed through the reserved hole and finally pouring cast-in-place concrete. The invention solves the problems of poor integrity and low structural safety of the on-site 3D printing building, improves the structural stability of the on-site 3D printing building technology, and ensures the construction quality.
The building construction method of the invention uses the 3D printing wall body which is constructed on site as the template of the building structure column, and reserves the operation space for constructing the reinforcing steel bars of the building structure column, thereby realizing the integrity of the building structure column and the 3D printing wall body. Therefore, the 3D printing structural column on the site construction site has the characteristics of template-free property, high construction efficiency and intelligent construction, ensures the integrity of a building, ensures the construction quality and reduces the construction cost. The structural stability of on-site 3D printing building technology is improved, and the construction quality is guaranteed.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic view of the structure of the present invention and a schematic view of the completion of step eight in the construction method.
FIG. 2 is a schematic diagram of the completion of step two in the construction method.
FIG. 3 is a schematic diagram of the completion of step three in the construction method.
FIG. 4 is a schematic diagram of the construction process of step four in the construction method.
FIG. 5 is a schematic diagram of the completion of step five of the construction method.
FIG. 6 is an enlarged bottom view of the sixth step in the construction method.
FIG. 7 is a schematic diagram of a construction process of step seven in the construction method.
Reference numerals: 1-concrete structure bottom plate, 2-3D printed outer wall body, 3-embedded steel bars, 4-3D printed wall inner ribs, 5-3D printed inner wall body, 6-L-shaped opening lintel, 7-lintel bracket, 8-vertical main ribs, 9-hole prefabricated plugging blocks, 10-cast-in-place column concrete and 11-splicing seams.
Detailed Description
Referring to fig. 1-7, the on-site 3D printed wall column structure comprises a concrete structure bottom plate 1, embedded steel bars 3, an opening lintel 6, a structural column steel reinforcement cage, a 3D printed outer wall body 2, a 3D printed inner wall body 5, a 3D printed inner wall body rib 4 and cast-in-place column concrete 10, wherein the structural column steel reinforcement cage comprises vertical main steel bars 8 and horizontal steel bars.
The same L type that is of shape that 3D printed outer wall body 2 and 3D printed interior wall body 5, and 3D prints interior wall body 5 and is located 3D and prints the inboard of outer wall body 2, and 3D prints the bight of outer wall body 2 and 3D and prints the bight of interior wall body 5 and two 3D and print wall body inner rib 4 and enclose jointly and close the post template that forms and supply cast-in-place post concrete 10 to pour, 3D prints the both ends of wall body inner rib 4 fixed connection respectively in 3D prints the outside of interior wall body 5 and 3D and prints the inboard of outer wall body 2.
The size of the hole prefabricated plugging block 9 is matched with that of the reserved hole at the bottom, and the splicing seams 11 between the periphery of the hole prefabricated plugging block 9 and the reserved hole at the bottom are bonded through a sealing slurry material.
A group of embedded steel bars 3 are embedded in the concrete structure bottom plate 1 in the enclosing range of the column formwork, the number of the embedded steel bars 3 is the same as that of the vertical main bars 8, the bottom of the embedded steel bars 3 is embedded into the concrete structure bottom plate 1, and the top of the embedded steel bars 3 extends out of the upper side of the concrete structure bottom plate 1.
The bottom of the vertical main reinforcement 8 is placed on the upper side of the concrete structure bottom plate 1 and fixedly connected to one side of the embedded reinforcement 3, and cast-in-place column concrete 10 is poured in the column formwork and wraps the embedded reinforcement 3 and the structural column reinforcement cage which are exposed on the upper side of the concrete structure bottom plate 1.
The height of the reserved hole at the bottom is higher than the height of the top of the embedded steel bar extending out of the upper side of the concrete structure bottom plate 1, and the height of the reserved hole at the bottom is 40 cm.
The materials of the 3D printed outer wall body 2, the 3D printed inner wall body 5 and the 3D printed inner wall body rib 4 are concrete or mortar.
The 3D printing outer wall body 2, the 3D printing inner wall body 5 and the 3D printing inner wall body rib 4 are formed through integrated construction of on-site 3D printing equipment.
The bottom of the embedded steel bar 3 is embedded into the concrete structure bottom plate 1 and fixedly connected with the steel bar of the concrete structure bottom plate 1 in a welding or binding mode, and the height of the top of the embedded steel bar 3 exposed out of the concrete structure bottom plate 1 is 20 cm.
The sealing slurry material is cement mortar. The strength grade of the cast-in-place column concrete 10 is C25-C40. The inner end of the 3D printing wall inner rib 4 is fixedly connected with the end parts of the 3D printing inner wall 5 at two sides of the reserved hole at the bottom. The diameter of the vertical main reinforcement 8 is the same as that of the embedded reinforcement 3, and the lap joint length is not less than 8 times of the diameter of the reinforcement.
A construction method of a wall column structure for on-site 3D printing comprises the following steps:
firstly, a concrete structure bottom plate 1 is constructed, and embedded steel bars 3 are embedded in the positions of structural columns.
Secondly, 3D printing outer wall bodies 2, 3D printing inner wall bodies 5 and 3D printing inner wall body ribs 4 are constructed by using special 3D printing construction equipment, and column templates are formed at corners; wherein, when 3D prints interior wall body 5, reserve the hole in the bottom reservation on the lower floor. As shown in fig. 2.
And step three, supporting an L-shaped hole lintel 6 on the reserved hole at the bottom, placing two ends of the L-shaped hole lintel 6 on wall bodies at two sides of the reserved hole at the bottom, and temporarily and vertically supporting the bottom center of the L-shaped hole lintel 6 by adopting a lintel support 7. As shown in fig. 3.
And step four, stopping the 3D printing construction until the height of the single layer is reached, and waiting until the strength of the wall body reaches the requirement. As shown in fig. 4.
And step five, taking out the lintel bracket 7, inserting the assembled structural column reinforcement cage, contacting each vertical main reinforcement 8 of the reinforcement cage with the embedded reinforcement 2, and contacting the bottom of the reinforcement cage with the concrete structure bottom plate. As shown in fig. 5.
And step six, firmly welding the structural column reinforcement cage and the embedded steel bars through the reserved hole at the bottom. As shown in fig. 6.
And seventhly, manufacturing a hole prefabricated plugging block 9 by using special 3D printing construction equipment, placing the hole prefabricated plugging block into the reserved hole at the bottom, and sealing the splicing seam by adopting a sealing material. As shown in fig. 7.
And step eight, pouring and vibrating the cast-in-place column concrete 10, maintaining after pouring, and finishing construction. As shown in fig. 1.
Claims (10)
1. The utility model provides a wall post structure that on-spot 3D printed which characterized in that: comprises a concrete structure bottom plate (1), embedded steel bars (3), an opening lintel (6), a structural column steel reinforcement cage, a 3D printed outer wall body (2), a 3D printed inner wall body (5), a 3D printed inner wall body rib (4) and cast-in-place column concrete (10), wherein the structural column steel reinforcement cage comprises vertical main reinforcements (8) and horizontal steel bars,
the 3D printing outer wall body (2) and the 3D printing inner wall body (5) are L-shaped in the same shape, the 3D printing inner wall body (5) is positioned on the inner side of the 3D printing outer wall body (2), the corner part of the 3D printing inner wall body (5) and two 3D printing inner wall body ribs (4) jointly enclose to form a column template for pouring cast-in-place column concrete (10), two ends of the 3D printing inner wall body rib (4) are fixedly connected to the outer side of the 3D printing inner wall body (5) and the inner side of the 3D printing outer wall body (2) respectively,
the 3D printing inner wall body (5) comprises a bottom reserved hole and a hole prefabricated plugging block (9), the bottom reserved hole is formed by two side wall bodies cut at the bottom corners of the 3D printing inner wall body (5) and an L-shaped hole lintel (6) with two ends falling on the upper sides of the two side wall bodies at the cut part, the thickness of the L-shaped hole lintel (6) is equal to the thickness of each layer of the 3D printing inner wall body (5), the width of the L-shaped hole lintel (6) is equal to the thickness of the 3D printing inner wall body (5),
the size of the hole prefabricated plugging block (9) is adapted to the size of the reserved hole at the bottom, the splicing seams (11) between the periphery of the hole prefabricated plugging block (9) and the reserved hole at the bottom are bonded by sealing slurry materials,
a group of embedded steel bars (3) are embedded in the concrete structure bottom plate (1) in the enclosing range of the column template, the number of the embedded steel bars (3) is the same as that of the vertical main bars (8), the bottom of the embedded steel bars (3) is embedded in the concrete structure bottom plate (1), the top of the embedded steel bars (3) extends out of the upper side of the concrete structure bottom plate (1),
the bottom of the vertical main reinforcement (8) is placed on the upper side of the concrete structure bottom plate (1) and fixedly connected to one side of the embedded reinforcement (3), and cast-in-place column concrete (10) is poured in the column formwork and wraps the embedded reinforcement (3) and the structural column reinforcement cage which are exposed on the upper side of the concrete structure bottom plate (1).
2. The on-site 3D printed wall stud construction of claim 1, wherein: the height of the reserved hole at the bottom is higher than the height of the top of the embedded steel bar extending out of the upper side of the concrete structure bottom plate (1), and the height of the reserved hole at the bottom is 40 cm.
3. The on-site 3D printed wall stud construction of claim 1, wherein: the material that wall body (2), 3D printed interior wall body (5) and 3D printed wall body inner rib (4) is printed in 3D is concrete or mortar.
4. The on-site 3D printed wall stud construction of claim 1, wherein: the 3D printing outer wall body (2), the 3D printing inner wall body (5) and the 3D printing inner wall body rib (4) are formed through integrated construction of on-site 3D printing equipment.
5. The on-site 3D printed wall stud construction of claim 1, wherein: the bottom of the embedded steel bar (3) is embedded into the concrete structure bottom plate (1) and fixedly connected with the steel bar of the concrete structure bottom plate (1) in a welding or binding mode, and the height of the top of the embedded steel bar (3) exposed out of the concrete structure bottom plate (1) is 20 cm.
6. The on-site 3D printed wall stud construction of claim 1, wherein: the sealing slurry material is cement mortar.
7. The on-site 3D printed wall stud construction of claim 1, wherein: the strength grade of the cast-in-place column concrete (10) is C25-C40.
8. The on-site 3D printed wall stud construction of claim 1, wherein: the inner end of the 3D printing wall inner rib (4) is fixedly connected with the end parts of the 3D printing inner wall body (5) on two sides of the reserved hole at the bottom.
9. The on-site 3D printed wall stud construction of claim 1, wherein: the diameter of the vertical main reinforcement (8) is the same as that of the embedded reinforcement (3), and the lap joint length is not less than 8 times of the diameter of the reinforcement.
10. A construction method of a field 3D printed wall stud construction according to any of claims 1-9, characterized by the steps of:
firstly, constructing a concrete structure bottom plate (1), and pre-buried steel bars (3) are pre-buried at the positions of structural columns;
secondly, 3D printing outer wall bodies (2), 3D printing inner wall bodies (5) and 3D printing inner wall body ribs (4) are constructed by using special 3D printing construction equipment, and column templates are formed at the corners; wherein, holes are reserved at the bottom of the lower layer when the inner wall body (5) is printed in a 3D mode;
step three, supporting an L-shaped hole lintel (6) on the reserved hole at the bottom, placing two ends of the L-shaped hole lintel (6) on wall bodies at two sides of the reserved hole at the bottom, and temporarily and vertically supporting the center of the bottom of the L-shaped hole lintel (6) by adopting a lintel bracket (7);
stopping the 3D printing construction until the height of the single layer is reached, and waiting until the strength of the wall body meets the requirement;
fifthly, taking out the lintel bracket (7), inserting the lintel bracket into the assembled structural column reinforcement cage, wherein each vertical main reinforcement (8) of the reinforcement cage is respectively contacted with the embedded reinforcement (2), and the bottom of the reinforcement cage is contacted with the concrete structure bottom plate;
step six, welding the structural column reinforcement cage and the embedded steel bars firmly through a hole reserved in the bottom;
seventhly, manufacturing a hole prefabricated plugging block (9) by using special 3D printing construction equipment, placing the hole prefabricated plugging block into the reserved hole at the bottom, and sealing the splicing seam by adopting a sealing material;
and step eight, pouring and vibrating the cast-in-place column concrete (10), and curing after pouring is finished, so that construction is finished.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911107328 | 2019-11-13 | ||
| CN2019111073282 | 2019-11-13 |
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| Publication Number | Publication Date |
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| CN111379360A true CN111379360A (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010185855.1A Pending CN111379360A (en) | 2019-11-13 | 2020-03-17 | On-site 3D printed wall column structure and construction method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554365A (en) * | 2020-11-09 | 2021-03-26 | 上海建工集团股份有限公司 | Prefabricated assembly type shear wall hand hole plugging device and construction method |
| WO2022026015A1 (en) * | 2020-07-30 | 2022-02-03 | Icon Technology, Inc. | Extrudable building material wall structure and method |
| CN114108841A (en) * | 2021-11-12 | 2022-03-01 | 哈尔滨工业大学 | 3D printed concrete constructional column bottom vertical steel bar anchoring member and construction method |
| WO2024030019A1 (en) * | 2022-07-31 | 2024-02-08 | Cybe Construction Bv | Method for manufacturing a module for a building using 3d concrete printing |
-
2020
- 2020-03-17 CN CN202010185855.1A patent/CN111379360A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022026015A1 (en) * | 2020-07-30 | 2022-02-03 | Icon Technology, Inc. | Extrudable building material wall structure and method |
| US11572692B2 (en) | 2020-07-30 | 2023-02-07 | Icon Technology, Inc. | Extrudable building material wall structure and method |
| EP4189186A4 (en) * | 2020-07-30 | 2024-06-26 | Icon Technology, Inc. | Extrudable building material wall structure and method |
| CN112554365A (en) * | 2020-11-09 | 2021-03-26 | 上海建工集团股份有限公司 | Prefabricated assembly type shear wall hand hole plugging device and construction method |
| CN114108841A (en) * | 2021-11-12 | 2022-03-01 | 哈尔滨工业大学 | 3D printed concrete constructional column bottom vertical steel bar anchoring member and construction method |
| WO2024030019A1 (en) * | 2022-07-31 | 2024-02-08 | Cybe Construction Bv | Method for manufacturing a module for a building using 3d concrete printing |
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