CN115387539A - Method for 3D printing concrete member steel bar network connection - Google Patents
Method for 3D printing concrete member steel bar network connection Download PDFInfo
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- CN115387539A CN115387539A CN202210381365.8A CN202210381365A CN115387539A CN 115387539 A CN115387539 A CN 115387539A CN 202210381365 A CN202210381365 A CN 202210381365A CN 115387539 A CN115387539 A CN 115387539A
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- 239000004567 concrete Substances 0.000 title claims abstract description 132
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 67
- 239000010959 steel Substances 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 66
- 238000010146 3D printing Methods 0.000 title claims abstract description 44
- 239000010410 layer Substances 0.000 claims abstract description 55
- 238000007639 printing Methods 0.000 claims abstract description 37
- 238000003466 welding Methods 0.000 claims abstract description 8
- 239000002356 single layer Substances 0.000 claims abstract description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 22
- 230000002787 reinforcement Effects 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000003014 reinforcing effect Effects 0.000 description 18
- 239000011241 protective layer Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 8
- 210000003205 muscle Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005493 welding type Methods 0.000 description 2
- 206010063659 Aversion Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011371 regular concrete Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
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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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
The invention discloses a method for 3D printing of concrete member steel bar network connection. The method comprises the following steps: calculating a steel bar arrangement mode inside the member and a steel bar node position needing to be connected across the 3D printing concrete layer; confirming the total length of the required connecting part and the diameter of the steel bar required to be processed according to the height and the width of the single-layer concrete, and manufacturing a male terminal and a female terminal of the connecting part; before printing, respectively welding a convex terminal and a concave terminal of a connecting part at two sides of a steel bar node to be connected, and determining a total printing flow according to the appearance of a printing component, the position of the connecting node and the connection intermittent time of the connecting part; the concrete layer is printed according to the printing process, the steel bars with the convex terminals are laid firstly, and then the steel bars with the concave terminals are correspondingly connected with the steel bars with the convex terminals in the intermittent time. The method effectively solves the problems that the 3D printed concrete member is difficult to connect and fix the cross-layer steel bars and the space rigid steel bar framework is formed along with the 3D printing.
Description
Technical Field
The invention relates to intelligent construction and civil engineering construction technologies, in particular to a method for 3D printing concrete member steel bar network connection.
Background
The 3D printing technology is a novel rapid prototyping and additive manufacturing technology, and the practical application of the technology can greatly save the labor cost, energy and resources and improve the precision and efficiency of processed products, thereby obviously changing the production mode of the manufacturing industry. Now, due to the characteristics of low tensile strength and often brittle failure of plain concrete materials, there are several cases of adding various fibers into 3D printed concrete materials, such as CN 113183279A, CN108129102A, CN108147742A, etc. However, the effect of enhancing the tensile strength of the concrete by means of 3D printing only on the fibers is limited and uneconomical, and the fiber orientation distribution is easily caused during 3D printing, so that the mechanical anisotropy of the concrete is more remarkable. Therefore, a method for constructing a steel bar network with performance consistent with that of the conventional concrete engineering in a 3D printed concrete structure is imperative to develop, and the method also has the characteristic of being well adapted to various printing working conditions.
There are methods for connecting short reinforcing bars in the interlayer region, such as CN 109680954A, but this method cannot form an effective reinforcing bar network, and it is difficult to complete the internal force transmission in the working state of 3D printed concrete members. CN112709443A proposes a method of using a sleeve to connect reinforcing bars at various positions of a 3D printed concrete member, however, the sleeve used in this method is difficult to ensure effective transmission of load, and because the main reinforcing bars are divided into a plurality of small segments instead of a whole at the nodes where the sleeve is located, the main reinforcing bars cannot present a stress state consistent with the reinforcing bars in the traditional concrete when the member is subjected to load, and the possibility of weak areas at the nodes is greatly increased. It can be seen that how to construct in 3D printing concrete member and arrange with regular concrete interior main reinforcement without interruption, and main reinforcing bar network can be well connected each other, and then form and have 3D printing concrete fine production characteristics concurrently and be applicable to the technique that 3D printed structural member joined in marriage the muscle is the key technical problem of current 3D printing join in marriage muscle member manufacturing process.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a method for 3D printing of concrete member steel bar network connection.
The technical scheme is as follows: the invention discloses a method for connecting a 3D printing concrete member steel bar network, which comprises the following steps:
(1) Calculating a steel bar arrangement scheme required to be used according to the type of the selected structural member and the required engineering environment, and determining the diameter of a main steel bar and the position of a node which needs to span a 3D printed concrete layer for connection;
(2) Confirming the total length of the required connecting part and the diameter and the length of the corresponding reinforcing steel bars of the male terminal and the female terminal which need to be processed into the connecting part according to the height and the width of the single-layer concrete;
(3) Before printing, respectively welding a convex terminal and a concave terminal of a connecting part at a main reinforcing steel bar node needing to be connected, and determining a total printing flow according to the appearance of a printing component, the position of a connecting node and the connection interval of the connecting part;
(4) The concrete layer is printed according to the printing process, the steel bars with the convex terminals are laid firstly, and then the steel bars with the concave terminals are correspondingly connected with the steel bars with the convex terminals within set intermittent time so as to complete the assembly of the connecting part.
Further, the distance between the outer surfaces of all the ribs in the member and the edge of the concrete layer is not less than 20mm.
Further, the main reinforcing steel bars can be longitudinal and transverse reinforcing steel bars, stirrups, erection bars and other conventional concrete internal reinforcing steel bar forms.
Further, the position of the connecting node should be selected to be a position where the main steel bar cannot be integrally laid by direct welding, lapping and the like in the printing process.
Further, the material properties of the connection should be consistent with the main reinforcement and ensure that no spatial deviations of more than 5 ° occur during welding.
Further, the diameter of the male end should be consistent with the diameter of the female end to ensure that the connection is stable and effective.
Furthermore, the sum of the diameter of the main reinforcement and the length of the welded connecting part is larger than the thickness of the concrete layer directly covered on the main reinforcement, preferably about 5mm
Furthermore, when the concrete multilayer 3D printing is carried out, whether the convex terminal and the concave terminal or only one of the convex terminal and the concave terminal should be welded on the surface or not should be selected at the position of the main reinforcing steel bar connecting node according to actual needs.
Further, the connection interval should be enough to complete the connection process of the connection part but should not be too long.
In order to fully ensure the safety and durability of the 3D printed concrete member, at least 20mm of protective layers are stored on the outer surfaces of all the reinforcement materials and the surface of the member when the printing process is determined. For a common extrusion type stacking 3D printing method, it should be ensured that the total length of the required connecting portion and the main steel bar welded thereto is greater than the thickness of the printing layer, so that the male terminal of the connecting portion is slightly higher than the concrete layer directly covered thereon, and further, it can be ensured that the female terminal welded on the next main steel bar can be accurately positioned and installed therewith. Taking the existing 3D printing concrete containing coarse aggregate as an example, the thickness of the single-layer concrete is about 35mm, if the diameter of the selected main reinforcement is 10mm, the total length of the connecting part should be 35mm to ensure that the convex terminal of the connecting part is 10mm higher than the concrete layer after the next layer of concrete is printed. The concave and convex terminals with the same diameter hole can ensure good connection and fixation between the concave and convex terminals to realize connection and fixation between the main ribs. Accomplish the back that single-deck concrete printing and take laying of convex terminal owner muscle, can be connected the next main muscle that has welded concave, convex terminal simultaneously again rather than, can accomplish whole printing and bar connection after layer concrete piles up and is connected with main muscle through layer.
The method is used for realizing the connection of the main steel bar network which cannot be implanted in the printing process in the 3D printing component in a mode that the convex terminals and the concave terminals are welded on the surfaces of the main steel bars to form the connecting part, and the method can be suitable for various main steel bar forms and can be used for constructing a good true interconnection space steel bar network, so that the integrated production of the 3D printing concrete ribbed component is realized to a great extent. The method is beneficial to the effective load transmission among the steel bars, enhances the deformability and structural strength of the 3D printed concrete member, and reduces the use of other unconventional external members or elements.
Has the advantages that: compared with the prior art, the invention has the following advantages:
1. by adopting the method, the problems that the 3D printed concrete member is difficult to connect and fix the cross-layer steel bars along with the 3D printing process and the space rigid steel bar framework is formed can be effectively solved.
2. The manufacturing of the steel bar 3D printing component with multiple working conditions and structural modeling can be completed by presetting the connection time of the 3D printing concrete stacking process, the main bar and the connecting part, and the connection between the steel bars and the load are effectively transmitted.
3. Because of connecting portion self is for the reinforcing bar make and its with main muscle beading, consequently connecting portion self can play effectual hoop effect in 3D printing the component such as roof beam to guarantee the whole deformation coordination ability of steel bar network, and then effectively improve the cross-section shear resistance ability and the wholeness of 3D printing concrete member.
4. The method has good applicability to various printing methods, printing processes, reinforcing steel bar arrangement schemes and reinforcing steel bar connection positions. The 3D printing steel bar reinforced member manufactured by the method can keep higher similarity with a reinforced concrete member manufactured by the traditional method, can be fully suitable for the current structural calculation design method and the performance requirement of the member, and has remarkable universality.
Drawings
FIG. 1 is a schematic view of a connecting portion;
FIG. 2 is a schematic diagram of a construction process of manufacturing a steel bar reinforced 3D printed concrete beam by the method;
FIG. 3 is a schematic diagram of a construction process of the 3D printing template integrated concrete column manufactured by the method;
fig. 4 is a schematic view of a construction process of manufacturing a steel bar reinforced 3D printed concrete slab by using the method.
Detailed Description
The method for 3D printing concrete member steel bar network connection provided by the invention comprises the following steps: calculating a steel bar arrangement mode in a member and a steel bar node position needing to be connected across a 3D printed concrete layer according to required engineering conditions, processing convex and concave terminals shown in figure 1, determining welding types and numbers according to actual conditions, and welding the welding types and the numbers to the required main steel bar node position; the method comprises the steps of presetting a 3D printing program according to the connection time of a main rib and a connecting part, then enabling 3D printing equipment to stack concrete layers according to the preset program, placing the main rib with convex and concave terminals at corresponding positions or connecting the main rib and the main rib within a preset pause time, repeating the process to realize the erection of a steel bar network in the 3D printed concrete component, and forming a spatial integral structure with good load transmission and coordinated deformation through the matrix extrusion effect of the concrete material and the subsequent hardening process, so that the 3D printed concrete component has high bearing capacity, high anti-cracking capacity and deformation capacity required by structural engineering, and the introduction of other unconventional materials is reduced.
Example 1
Taking the steel bar reinforced 3D printed concrete beam in fig. 2 as an example, the construction process is described in steps:
1. according to the functional requirements of structural members, beam members need to bear large bending moment and shearing force during working, so that enough longitudinal steel bars and stirrups need to be arranged to meet the requirements of section bearing capacity. Firstly, the diameter, the surface state, the thickness and the interval of a protective layer of a required longitudinal steel bar are determined through the bearing capacity design and the mechanical calculation analysis of a structural member, the position of a required connecting node and the number and the size of required convex and concave terminals are determined, and the terminals are welded with corresponding longitudinal bars after being manufactured. In this embodiment, the connection formed by the male and female terminals can actually serve to connect the longitudinal bars and resist shear forces similar to stirrups.
2. According to the overall structure of the steel bar reinforced 3D printed concrete beam in the embodiment, the printing process design of the strength of the used concrete, the stacking sequence of concrete layers and the connection interval time of longitudinal steel bars welded with male and female terminals is confirmed.
3. Print according to printing the flow after preparing 3D and printing concrete material, longitudinal reinforcement will be placed in 3D and print between the concrete strip regional in this embodiment, can make 3D print head keep away from connecting portion and prevent to print the aversion that the in-process reinforcing bar appears and is touched and lead to both sides edge concrete strip can regard as the protective layer of inside reinforcing bar to use. Can carry out laying of the vertical reinforcing bar of first floor area convex terminal after printing first floor concrete, first floor concrete does not except playing the supporting role and also can regard as the reinforcing bar protective layer. And then, longitudinal steel bars welded with the convex and concave terminals can be connected and the 3D printing concrete layer is continued along with the design flow, until the top longitudinal steel bars welded with the concave terminals are connected, the final concrete is printed and the steel bar reinforced 3D printing concrete beam member with the internal steel bar network connected can be formed.
4. The reinforcing steel bars in the interlayer region can be well covered by the self weight and the extrusion effect of the concrete, so that a firm and compact space structure in the space structure is formed, and the bending resistance, the shearing resistance and the deformation resistance of the 3D printed concrete beam are improved.
In fig. 2, a first concrete layer is printed to form a bottom protective layer, 2a first concrete layer with male terminals is laid, 3a second concrete layer is printed and stacked to ensure that the male terminals of the first concrete layer are exposed thereon, 4a second concrete layer is laid and the male and female terminals are welded together to form a connection portion, 5 a third concrete layer is printed and stacked to ensure that the male terminals of the second concrete layer are exposed thereon, 6 a third concrete layer is laid and the male and female terminals are welded together to form a connection portion, 7 a fourth concrete layer is printed and stacked to ensure that the male terminals of the third concrete layer are exposed thereon, 8 a fourth concrete layer is laid and the female terminals are welded together to form a connection portion, 9a fifth concrete layer is printed and the sixth concrete layer is printed to form a top protective layer.
Example 2
Taking the 3D printing template integrated concrete column in FIG. 3 as an example, the construction process is described in steps:
1. according to the functional requirements of the structural member, the column member is required to bear large axial pressure during operation, so that enough longitudinal steel bars and stirrups are required to be arranged to meet the requirements of section bearing capacity. Firstly, the required diameter, surface state, protective layer thickness and spacing of the longitudinal steel bar are determined through the bearing capacity design and mechanical calculation analysis of the structural member, the required position of the connecting node and the required number and size of the convex and concave terminals are determined, and the terminals are welded with the corresponding stirrups and longitudinal bars after being manufactured. In this embodiment, the connection portion formed by the male and female terminals can actually serve to penetrate the concrete layer to fix the stirrup to the longitudinal steel bar.
2. According to the 3D printing template integrated concrete column overall structure in the embodiment, the printing flow design of the used concrete strength, the stacking sequence of the concrete layers and the required intermittent time for placing the stirrups welded with the convex terminals is confirmed.
3. Print according to printing the flow after preparing 3D and printing the concrete material, the stirrup that has welded the convex terminal in this embodiment will be placed on 3D prints the concrete layer, ensures that the convex terminal can be by protruding certain distance in the concrete layer, and the peripheral concrete layer of stirrup can regard as the protective layer to use. According to the designed stirrup spacing, the stirrups can be laid after the concrete with the corresponding height is printed, then concrete layers are continuously stacked on the stirrups, the processes are repeated until the required column height is reached, a permanent column template can be formed, finally, the longitudinal steel bars with the welded concave terminals are connected with the convex terminals, and filling concrete is injected into the permanent column template, so that the 3D printing template integrated concrete column component with the internal steel bar network connected can be formed.
4. The reinforcing bar that can carry out good cover to the region in the in situ and the post through the dead weight of concrete and extrusion, and then form inside firm closely knit spatial structure, improve the resistance to compression, rigidity, the resistance to deformation ability of 3D printing concrete post.
In fig. 3, 1 is for printing the initial part of integral type template at first in order to form the concrete protection layer and ensure that the stirrup interval is unanimous, 2 for laying the stirrup that the one deck has welded the male terminal, make the male terminal expose inside the integral type template, 3 for repetition 1, 2 step gradually to 4 show reach pile up required overall height, 5 for connecting the vertical reinforcing bar that has welded the female terminal with each male terminal that the inside of integrative post exposes in order to form the connection, 6 for pouring concrete in the integrative post template and finally forming required 3D printing template integral type concrete column.
Example 3
Taking the steel bar reinforced 3D printed concrete slab in fig. 4 as an example, the construction process is described in steps:
1. according to the functional requirements of the structural member, the plate-type member needs to bear large bending moment and shearing force during working, so that enough reinforcing mesh needs to be arranged to meet the requirements of section bearing capacity. Firstly, the required diameter, surface state, protective layer thickness and spacing of the steel bar are determined through the bearing capacity design and mechanical calculation analysis of the structural member, the required position of the connecting node and the required number and size of the convex and concave terminals are determined, and the terminals are welded with the four corners and the center of the steel bar mesh after being manufactured. In this embodiment, the connection portion formed by the male and female terminals can actually serve to connect and fix the reinforcing mesh.
2. The overall structure of the steel bar reinforced 3D printed concrete slab according to the embodiment confirms the strength of the concrete used, including the stacking order of the concrete layers, and the intermittent time required for placing the reinforcing mesh welded with the convex or concave terminals.
3. After the 3D printed concrete material is prepared, printing is performed according to a printing process, in this embodiment, the reinforcing mesh welded with the male terminal is placed on the 3D printed concrete layer, so that the male terminal can protrude from the concrete layer by a certain distance. And according to the designed spacing of the reinforcing steel bar meshes, laying the next reinforcing steel bar mesh after the concrete with the corresponding height is printed, then continuously stacking concrete layers on the concrete layers, and repeating the process until the required plate thickness is reached to form the reinforcing steel bar reinforced 3D printed concrete plate member with the interconnected internal reinforcing steel bar meshes.
4. The reinforcing steel bars in the interlayer region can be well covered through the self weight and the extrusion effect of the concrete, so that a firm and compact space structure is formed inside, and the bending resistance, the shearing resistance and the deformation resistance of the 3D printed concrete plate are improved.
The embodiment adopts a general modeling example under a conventional plane rectangular coordinate system, namely a method for connecting an internal reinforcing steel bar network of a 3D printed concrete member, but the technology and design of the invention can complete the manufacture of the 3D printed concrete member with various spatial modeling according to actual needs, and the internal space of the firm 3D printed concrete member is finally formed by welding the convex and concave terminals and various main reinforcements and connecting the main reinforcement networks through the connecting parts in the printing process.
In fig. 4, 1 is printing the first concrete layer to form the bottom concrete protection layer, 2 is laying the first layer of mesh reinforcement welded with male terminals, 3 is continuously printing and stacking the second layer of concrete to ensure that the male terminals are exposed, 4 is laying the second layer of mesh reinforcement welded with female terminals to connect with the male terminals on the first layer of mesh reinforcement to form the connection portion, and 5 is printing and stacking the third layer of concrete to form the top concrete protection layer.
Claims (9)
1. A method for 3D printing concrete member steel bar network connection is characterized in that: the method comprises the following steps:
(1) Calculating a steel bar arrangement scheme required to be used according to the type of the selected structural member and the required engineering environment, and determining the diameter of the main steel bar and the position of a node which needs to be connected across the 3D printed concrete layer;
(2) Confirming the total length of the required connecting part and the diameter and the length of the corresponding reinforcing steel bars of the male terminal and the female terminal which need to be processed into the connecting part according to the height and the width of the single-layer concrete;
(3) Before printing, respectively welding a convex terminal and a concave terminal of a connecting part at a main reinforcing steel bar node to be connected, and determining a total printing flow according to the appearance of a printing component, the position of the connecting node and the connection interval of the connecting part;
(4) The concrete layer is printed according to the printing process, the steel bars with the convex terminals are laid firstly, and then the steel bars with the concave terminals are correspondingly connected with the steel bars with the convex terminals within set intermittent time so as to complete the assembly of the connecting part.
2. The method for 3D printing concrete member rebar network connection of claim 1, wherein: and (2) in the step (1), the distance between the outer surfaces of all the reinforcement materials in the member and the edge of the concrete layer is not less than 20mm.
3. The method for 3D printing concrete member rebar network connections of claim 1, wherein: the main reinforcement may be in the form of concrete internal reinforcement.
4. The method for 3D printing concrete member rebar network connection of claim 3, wherein: the concrete internal reinforcing steel bars are longitudinal reinforcing steel bars, transverse reinforcing steel bars, stirrups or vertical reinforcing steel bars.
5. The method for 3D printing concrete member rebar network connection of claim 1, wherein: and (4) the connecting node position in the step (3) is a position where the main steel bar cannot be integrally laid in the printing process.
6. The method for 3D printing concrete member rebar network connections of claim i, wherein: the material properties of the joint are consistent with those of the main reinforcement and ensure that no spatial deviations of more than 5 deg. occur during welding.
7. The method for 3D printing concrete member rebar network connections of claim i, wherein: the diameter of the male end is consistent with that of the female end so as to ensure that the connecting part is stable and effective.
8. The method for 3D printing concrete member rebar network connections of claim 1, wherein: the sum of the diameter of the main reinforcement and the length of the welded connecting part in the step (1) is larger than the thickness of the concrete layer directly covered on the main reinforcement.
9. The method for 3D printing concrete member rebar network connections of claim 1, wherein: when printing is carried out, whether the male terminal and the female terminal are welded or only one is welded on the surface can be selected at the position of the main reinforcing steel bar connecting node according to actual needs.
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| CN202210381365.8A CN115387539A (en) | 2022-04-12 | 2022-04-12 | Method for 3D printing concrete member steel bar network connection |
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| CN202210381365.8A CN115387539A (en) | 2022-04-12 | 2022-04-12 | Method for 3D printing concrete member steel bar network connection |
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| CN204491974U (en) * | 2015-03-21 | 2015-07-22 | 福建建超建设集团有限公司 | A kind of sheet reinforcement cage structure |
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| KR20170008346A (en) * | 2015-07-13 | 2017-01-24 | 연세대학교 산학협력단 | Manufacturing method of structure with reinforced concrete construction using 3d printer |
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| CN110374264A (en) * | 2019-08-15 | 2019-10-25 | 南京明麓建筑工程有限公司 | Adjustable reinforced connector |
| CN112709443A (en) * | 2020-12-25 | 2021-04-27 | 浙江大学 | Integrally-assembled reinforcement printing construction method for 3D printed concrete structure |
| CN113152783A (en) * | 2021-03-19 | 2021-07-23 | 东南大学 | Truss piece type reinforcement printed concrete beam and manufacturing method thereof |
| CN114132047A (en) * | 2021-10-27 | 2022-03-04 | 广东电网有限责任公司广州供电局 | Printing and reinforcing method for 3D printed concrete member |
-
2022
- 2022-04-12 CN CN202210381365.8A patent/CN115387539A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204491974U (en) * | 2015-03-21 | 2015-07-22 | 福建建超建设集团有限公司 | A kind of sheet reinforcement cage structure |
| KR20170008346A (en) * | 2015-07-13 | 2017-01-24 | 연세대학교 산학협력단 | Manufacturing method of structure with reinforced concrete construction using 3d printer |
| KR101681544B1 (en) * | 2015-11-24 | 2016-12-01 | 홍익대학교 산학협력단 | Automated system for constructin a concrete structure |
| CN109680954A (en) * | 2019-01-29 | 2019-04-26 | 中国建筑第八工程局有限公司 | Interlayer reinforces 3D printing concrete structure and its construction method |
| CN110374264A (en) * | 2019-08-15 | 2019-10-25 | 南京明麓建筑工程有限公司 | Adjustable reinforced connector |
| CN112709443A (en) * | 2020-12-25 | 2021-04-27 | 浙江大学 | Integrally-assembled reinforcement printing construction method for 3D printed concrete structure |
| CN113152783A (en) * | 2021-03-19 | 2021-07-23 | 东南大学 | Truss piece type reinforcement printed concrete beam and manufacturing method thereof |
| CN114132047A (en) * | 2021-10-27 | 2022-03-04 | 广东电网有限责任公司广州供电局 | Printing and reinforcing method for 3D printed concrete member |
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