CN111706006A - Integrated reinforced bar mould-free cast-in-situ concrete column - Google Patents
Integrated reinforced bar mould-free cast-in-situ concrete column Download PDFInfo
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- CN111706006A CN111706006A CN202010740403.5A CN202010740403A CN111706006A CN 111706006 A CN111706006 A CN 111706006A CN 202010740403 A CN202010740403 A CN 202010740403A CN 111706006 A CN111706006 A CN 111706006A
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- 239000004567 concrete Substances 0.000 title claims abstract description 67
- 238000011065 in-situ storage Methods 0.000 title description 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 238000010276 construction Methods 0.000 claims abstract description 31
- 230000002787 reinforcement Effects 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 13
- 239000004568 cement Substances 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 7
- 239000002023 wood Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 18
- 239000011178 precast concrete Substances 0.000 abstract description 3
- 230000002028 premature Effects 0.000 abstract description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000009415 formwork Methods 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 noise Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses an integrated steel bar mould-free cast-in-place concrete column, which comprises a box type column shell, a steel bar framework and a pulling piece, wherein the box type column shell is provided with a through cavity along the extension direction of the box type column shell, the box type column shell comprises a plurality of side panels, the box type column shell is formed by enclosing the side panels, the steel bar framework is contained in the cavity of the box type column shell, the length of the steel bar framework along the extension direction of the steel bar framework is greater than that of the box type column shell along the extension direction of the steel bar framework, the pulling piece is positioned in the box type column shell, and two ends of the pulling piece are respectively fixed on two opposite side panels of the box type column shell; when the concrete column is used, premature intervention of a large amount of concrete in a precast concrete structure in precast beam products in a component factory can be avoided, and concrete pouring procedures and procedures with high site construction efficiency are still kept in site implementation.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an integrated steel bar mould-free cast-in-place concrete column.
Background
In the traditional cast-in-place concrete structural engineering, the on-site construction efficiency of the template and reinforcing steel bar procedures is very low, and the daily average output value does not exceed 2300 yuan; the field construction efficiency of the procedures of door and window installation, building block filling wall, external heat preservation, painting and the like is lower, and the daily average output value is not more than 1000 yuan; the on-site construction efficiency of concrete items is very high, and the daily average output value can reach 20000 yuan at most. At present, the building industry in China is entering a stage of greatly promoting building industrialization, but the existing assembly type structure system carries out concrete with high daily average output value in a factory in different items, most of working procedures such as templates, reinforcing steel bars, external heat preservation, painting and the like with low output value are still left on site, so that the construction period progress is slow, and the construction cost is greatly increased. In addition, the installation process of prefabricated parts is increased after the PC components are adopted, the site construction needs cross operation, the process is increased, the management difficulty is increased, the actual assembly degree is generally low in the current assembly integral type frame structure system and the assembly integral type frame cast-in-place shear wall structure system, a large amount of templates, painting, masonry, reinforcing steel bars and the like are still needed on site, and the problems of waste, pollution, noise, dust raising and quality generated by the operation are not fundamentally improved due to the adoption of the prefabricated parts.
Therefore, there is a need to provide a concrete column and a related construction method, which can effectively avoid premature intervention of a large amount of concrete in a precast concrete structure in precast beam products in a component factory during construction, complete part or all of the four processes of 'formwork, steel bar, pipeline and plastering' with low traditional site construction efficiency in a factory at different time, and still maintain the concrete pouring process and process with high site construction efficiency in site implementation, thereby not only fully playing the advantages of factory production and site pouring, but also avoiding the disadvantages of the two.
Disclosure of Invention
The invention aims to provide an integrated reinforced bar mould-free cast-in-place concrete column and a construction method thereof, when the integrated reinforced bar mould-free cast-in-place concrete column is used as a building structure column, the early intervention of a large amount of concrete in a precast concrete structure in precast beam products in a component factory can be avoided, the traditional four processes of 'template, reinforcing steel bar, pipeline and plastering' with low on-site construction efficiency are partially or completely finished in different time in different places in the factory, the concrete pouring process and process with high on-site construction efficiency are still maintained to be implemented on site, the advantages of factory production and on-site pouring can be fully exerted, and the defects of the two can be avoided.
In order to achieve the above objects and other related objects, the present invention provides an integrated steel bar mold-free cast-in-place concrete column, which comprises a box-type column casing, a steel bar framework and a tie member, wherein the box-type column casing has a through cavity along an extending direction thereof, the box-type column casing comprises a plurality of side panels, the plurality of side panels surround to form the box-type column casing, the steel bar framework is accommodated in the cavity of the box-type column casing, the length of the steel bar framework along the extending direction thereof is greater than the length of the box-type column casing along the extending direction thereof, the tie member is located inside the box-type column casing, and two ends of the tie member are respectively fixed on two opposite side walls of the box-type column casing.
The box-type column shell and the steel reinforcement framework adopted by the scheme are prefabricated in a factory, plastering is avoided on the surface of a component, and labor and template consumption on a construction site are greatly saved, so that the procedures of low mechanization degree, low daily average output value, generation of waste materials, noise, dust raising and more quality problems in construction site construction are changed into the procedures of factory production, the cast concrete process with the highest daily average output value on the site is reserved on the site, and the construction process of the assembled concrete column is optimized and modified, so that the construction quality is improved, the efficiency is improved, and the cost is controlled to be maximized; and because the side panels are caused with larger lateral pressure when the concrete is poured into the hollow shell, the pulling piece is used for generating pulling force between the side panels, so that the system can automatically bear the lateral pressure when the concrete is poured; the extension length of the steel reinforcement framework is longer than that of the box-type column shell, so that when the steel reinforcement framework and the box-type column shell are assembled and installed on the ground, the top and the bottom of the steel reinforcement framework extend out of one part of the box-type column shell, and the extended parts are used for installing structural members such as beams, floor slabs and the like connected with the top and the bottom of the formwork column.
Furthermore, the box-type column shell comprises four side panels which are mutually connected and vertical, and two ends of the pulling piece are respectively fixed on the two opposite side panels. The general construction column body adopts a cuboid form, and the drawknot piece is drawn and knotted with two corresponding side walls, so that the drawknot force can be conveniently exerted.
Furthermore, the number of the pulling pieces is multiple, the two corresponding side panels are in one group, and the two groups of side panels are provided with the pulling pieces. In order to improve the pulling effect on the side panels and better resist the lateral pressure on the side panels generated during casting, the number of the pulling pieces is generally set to be multiple.
Further, the pulling piece is detachably connected with the side wall. The detachable connection mode is adopted, so that the pulling piece can be detached after pouring is finished, and the pulling piece can be used repeatedly.
Furthermore, two corresponding side panels in each group of the side panels are equally provided with a coaxial split bolt hole, the two coaxial split bolt holes are in a group, the number of the split bolt holes is equal to the number of the pulling pieces, each pulling piece comprises a sleeve, a screw and an outer nut, two ends of each screw penetrate through the two corresponding split bolt holes respectively, the outer nuts in threaded fit with the screws are sleeved between two ends of each screw and the side panels respectively, the sleeves are sleeved on the screws between the two corresponding side panels, a reinforcing back edge is further arranged between the outer nuts and the side panels, and each reinforcing back edge is an aluminum alloy box section or a batten. The matching of the outer nut, the sleeve and the screw is a form of realizing the detachable connection of the pulling piece and is a common form adopted in the field, and the matching of the screw, the sleeve and the nut is simple to use and is cheap.
Furthermore, two corresponding side panels are respectively provided with a coaxial hoisting pair through hole, the two coaxial hoisting pair through holes are in one group and at least two groups, and the two groups are respectively positioned at two ends of the box-type column shell, so that the hoisting is convenient.
Further, the side panel is a reinforced composite cement-based thin plate, and the reinforced composite cement-based thin plate is reinforced by a hot-dip galvanized electric welding net and/or a fiber material in a reinforcing mode. The side face plate is made of reinforced composite cement-based materials, is thin, can avoid steam curing, reduces the curing cost and the transportation cost of the template, has light weight and reduces the hoisting cost.
Furthermore, two corresponding side panels are respectively provided with a coaxial inclined strut through hole, the two coaxial inclined strut through holes form a group, and the number of the groups of the inclined strut through holes is multiple. The inclined strut through hole is connected with the supporting piece when being used for installation, and the supporting piece is used for installing and pouring the temporary inclined strut of the integrated steel bar mould-free cast-in-place concrete column.
Further, the thickness of the side panel is 20-30 mm.
Further, the invention also provides a construction method of the integrated steel bar mould-free cast-in-place concrete column as a building structure column, which comprises the following steps:
s1: placing the steel reinforcement framework into a box-type column shell, and installing a sleeve, an outer nut, a screw and a reinforcing back ridge at an alignment bolt hole to form a concrete column part;
s2: hoisting the concrete column component to the installation position of an installation plane, connecting one end of an inclined strut rod piece with an inclined strut through hole, and fixing the other end of the inclined strut rod piece on the installation plane, so that the concrete column component is fixed;
s3: the bottom of the concrete column part is plugged by mortar or a wood pattern, and the parts of the top and the bottom of the steel reinforcement framework extending out of the box-type column shell are used for connecting related structural members;
s4: and after the adjacent structural members are installed, pouring concrete into the box-type column shell, and after the concrete is cured, removing the diagonal brace rod piece, the screw rod and the nut.
Drawings
Fig. 1 is a schematic side view of an integrated reinforced form-free cast-in-place concrete column according to an embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of an integrated reinforced form-free cast-in-place concrete column according to an embodiment of the present invention.
Wherein the reference numerals are as follows:
10-box type column shell, 11-side panel, 12-alignment bolt hole, 13-diagonal brace through hole, 14-hoisting pair through hole, 20-steel reinforcement framework, 30-tie piece, 31-screw, 32-outside nut, 33-sleeve and 34-reinforcing back edge.
Detailed Description
The following describes in more detail embodiments of the present invention with reference to the schematic drawings. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Fig. 1 and 2 are schematic diagrams of an integrated reinforced form-free cast-in-place concrete column provided by an embodiment of the invention, which includes a box-type column casing 10, a reinforced bar framework 20 and a tie member 30, the box-type column casing 10 has a through cavity along an extending direction thereof, the box-type column casing 10 includes a plurality of side panels 11, the plurality of side panels 11 surround to form the box-type column casing 10, the reinforced bar framework 20 is accommodated in the cavity of the box-type column casing 10, the length of the reinforced bar framework 20 along the extending direction thereof is greater than the length of the box-type column casing 10 along the extending direction thereof, the tie member 30 is located inside the box-type column casing, and two ends of the tie member 30 are respectively fixed on two opposite side panels 11 of the box-type column casing 10.
The box-type column shell 10 and the steel reinforcement framework 20 adopted by the scheme are prefabricated in a factory, plastering-free component surfaces are realized, and the labor and template consumption on a construction site are greatly saved, so that the procedures of low mechanization degree, low daily average output value, waste generation, noise, dust raising and more quality problems in construction site construction are changed into the procedures of factory production completion, the cast concrete with the highest daily average output value on the site is reserved on the site, and the construction quality, efficiency and cost control are maximized by optimizing and modifying the construction flow of the assembled concrete column;
and because a larger lateral pressure is caused to the side panels 11 when the concrete is poured into the box-type column shell 10, the pulling piece 30 is used for generating a pulling force between the side panels 11, so that the system can automatically bear the lateral pressure when the concrete is poured; the extension length of the steel reinforcement framework 20 is longer than that of the box-type column shell 10, so that when the steel reinforcement framework 20 and the box-type column shell 10 are assembled and installed on the ground, the top and the bottom of the steel reinforcement framework 20 extend out of a part of the box-type column shell 10, and the extended parts are used for installing structural members such as beams, floors and the like connected with the top and the bottom of a formwork column.
Referring to fig. 1 and 2, four side panels 11 are perpendicularly enclosed to form a box-type column casing 10 for accommodating the steel reinforcement framework 20, the side panels 11 are cuboids with the same size, and the end surface of the enclosed box-type column casing 10 may be square, but it should be understood by those skilled in the art that the number and shape of the side panels 11 are not limited as long as they can enclose and accommodate the steel reinforcement framework 20, for example, three side panels may enclose to form a box-type column casing with a triangular side, and the shape of the box-type column casing depends on the shape of the steel reinforcement framework matched therewith.
As shown in fig. 2, the tie 30 may include a threaded rod 31, an outer nut 32, a sleeve 33, and a reinforcing back ridge 34. In specific implementation, the side panels 11 may be provided with alignment bolt holes 12, the alignment bolt holes 12 may be divided into a plurality of groups, each group includes two alignment bolt holes 12 that are opposite to each other, and the alignment bolt holes 12 are respectively provided on two opposite side panels 10, and the two alignment bolt holes 12 in the same group are coaxial. Then, the screw 31 respectively passes through the two opposite alignment bolt holes 12, and since the steel reinforcement framework 20 is of a steel frame structure, the inner space is large, and the screw 31 easily passes through. After the screw rods 31 are installed, the screw rods 31 positioned outside the side panels 10 are all sleeved with the outside nuts 31 in threaded fit with the screw rods 31, reinforcing back ridges 34 are arranged inside the screw rods to improve the fastening performance, the reinforcing back ridges 34 can be wood or aluminum alloy box-shaped sections, and the outside nuts 31 are screwed and tightly attached to the reinforcing back ridges 34, so that the internal pulling force of the center to the two side panels 11 is formed, and the side pressure to the side panels 11 when concrete is poured is resisted.
Of course, it should be understood by those skilled in the art that the structure for forming the pulling force for the two side panels 11 is not limited to the combination of the screw rod 31 and the outer nut 32, and other pulling members, such as two-end snap keys, that is, two ends of the pulling member are snapped on the side panels 11, or a non-detachable form, that is, two ends of the pulling member are fixed on the two side panels 11. Such detachable form as the engagement of the threaded rod 31 and the outer nut 32 is advantageous in that the number and position of the aligned bolt holes 12 and the combination of the threaded rod 31 and the outer nut 32 can be flexibly adjusted according to the structure of the inner skeleton 20.
In order to increase the internal tension of the two side panels 11 and thus better resist the lateral pressure of the side panels 11 caused by the concrete pouring, the combination of the alignment bolt holes 12 and the screw rods 31 and the outer nuts 32 may be provided in a plurality of pairs and uniformly arranged on the two side panels 11. In addition, during the installation process, which may cause a collision or other forces to the side panel 11, a matching sleeve 33 may be sleeved on the portion of the screw 31 located inside the box-type column casing, as shown in fig. 2, and the sleeve 33 may be a pvc pipe.
When the integrated steel bar mould-free cast-in-place concrete column is specifically installed, the integrated steel bar mould-free cast-in-place concrete column needs to be laterally supported and hoisted, in order to facilitate lateral support and hoisting, a diagonal bracing through hole 13 and a hoisting pair through hole 14 can be additionally formed in the lateral panel 11, one end of a supporting piece is fixedly connected with the diagonal bracing through hole 13 through a bolt, and the other end of the supporting piece is fixed on an installation plane, for example, the supporting piece is installed on the ground, the integrated steel bar mould-free cast-in-place concrete column is supported, and the supporting piece can be detached after pouring is.
The side panel 11 is generally a reinforced composite cement-based thin plate with a thickness of 20-30mm, and is reinforced by hot-dip galvanized electric welding net, fiber material and the like. The reinforced composite cement-based material adopting the reinforcing mode has the advantages of being thin in thickness, free of steam curing, capable of reducing template curing cost and transportation cost, light in weight and capable of reducing hoisting cost.
The invention provides a construction method of the integrated reinforced bar mould-free cast-in-place concrete column as a structural column in construction aiming at the integrated reinforced bar mould-free cast-in-place concrete column, which comprises the following construction steps:
1. placing the steel reinforcement framework 20 into the box-type column shell 10, and installing a sleeve 33, an outer nut 32, a screw 31 and a reinforcing back ridge 34 at the position of the alignment bolt hole 12 to form a concrete column component;
2. hoisting the concrete column component to the installation position of an installation plane, connecting one end of an inclined strut rod piece with the inclined strut through hole 13, and fixing the other end of the inclined strut rod piece on the installation plane, so that the concrete column component is fixed;
3. plugging the bottom of the concrete column part by using mortar or a wood pattern, wherein the parts of the top and the bottom of the steel reinforcement framework 20 extending out of the box-type column shell 10 are used for connecting related structural members;
4. after the installation of the adjacent structural members is finished, concrete is poured into the box-type column shell 10, and after the concrete curing is finished, the diagonal bracing members, the screw rods 31, the outer side nuts 32 and the reinforcing back ridges 34 are removed.
The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The integrated reinforced bar mold-free cast-in-place concrete column is characterized by comprising a box type column shell, a reinforced bar framework and a pulling piece, wherein the box type column shell is provided with a through cavity along the extension direction of the box type column shell, the box type column shell comprises a plurality of side panels, the side panels are enclosed to form the box type column shell, the reinforced bar framework is contained in the cavity of the box type column shell, the length of the reinforced bar framework along the extension direction of the reinforced bar framework is greater than that of the box type column shell along the extension direction of the reinforced bar framework, the pulling piece is positioned inside the box type column shell, and two ends of the pulling piece are respectively fixed on two side panels opposite to the box type column shell.
2. An integrated reinforced form-free cast-in-place concrete column as claimed in claim 1, wherein said box-type column shell comprises four interconnected and vertical side panels, said tie member being secured at each end to two of said side panels opposite each other.
3. The integrated reinforced form-free cast-in-place concrete column according to claim 2, wherein the number of the tie members is plural, two corresponding side panels are in one set, and both sets of the side panels are provided with the tie members.
4. The cast-in-place concrete column with integrated rebars and a mold-free according to claim 3, wherein the tie member is detachably connected with the side panels.
5. The cast-in-place concrete column with integrated steel bars and without a mold as claimed in claim 4, wherein two corresponding side panels in each group of the side panels are respectively provided with a coaxial split bolt hole, the two coaxial split bolt holes are in a group, the number of the split bolt holes is the same as the number of the tie pieces, each tie piece comprises a sleeve, a screw and an outer nut, two ends of the screw respectively penetrate through the two corresponding split bolt holes, the outer nuts in threaded fit with the screw are respectively sleeved between the two ends of the screw and the side panels, the sleeve is sleeved on the screw between the two opposite side panels, and a reinforcing ridge is further arranged between the outer nut and the side panel.
6. The integrated reinforced form-free cast-in-place concrete column according to claim 5, wherein the reinforcing back ridge is an aluminum alloy box section or a batten.
7. The integrated reinforced form-free cast-in-place concrete column according to claim 6, wherein a coaxial hoisting pair through hole is further formed in each of the two corresponding side panels, and the two coaxial hoisting pair through holes are formed in one group, at least two groups, and the two groups are respectively located at two ends of the box-type column shell.
8. The cast-in-place concrete column with integrated steel bars and a mold-free according to claim 7, wherein the side panel is a reinforced composite cement-based sheet, the reinforced composite cement-based sheet is reinforced by a hot-dip galvanized electric welding net and/or a fiber material, and the thickness of the side panel is 20-30 mm.
9. The integrated reinforced bar mold-free cast-in-place concrete column as claimed in claim 7, wherein two corresponding side panels are respectively provided with a coaxial diagonal bracing through hole, the two coaxial diagonal bracing through holes form a group, and the number of the groups of the diagonal bracing through holes is multiple.
10. A construction method of an integrated reinforced bar mould-free cast-in-place concrete column, which is characterized in that the integrated reinforced bar mould-free cast-in-place concrete column of claim 8 is used as a construction of a building structure column, and comprises the following steps:
s1: placing the steel reinforcement framework into a box-type column shell, and installing a sleeve, an outer nut, a screw and a reinforcing back ridge at an alignment bolt hole to form a concrete column part;
s2: hoisting the concrete column component to the installation position of an installation plane, connecting one end of an inclined strut rod piece with an inclined strut through hole, and fixing the other end of the inclined strut rod piece on the installation plane, so that the concrete column component is fixed;
s3: the bottom of the concrete column part is plugged by mortar or a wood pattern, and the parts of the top and the bottom of the steel reinforcement framework extending out of the box-type column shell are used for connecting related structural members;
s4: and after the adjacent structural members are installed, pouring concrete into the box-type column shell, and after the concrete is cured, removing the diagonal brace rod piece, the screw rod, the outer side nut and the reinforcing back edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010740403.5A CN111706006A (en) | 2020-07-28 | 2020-07-28 | Integrated reinforced bar mould-free cast-in-situ concrete column |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010740403.5A CN111706006A (en) | 2020-07-28 | 2020-07-28 | Integrated reinforced bar mould-free cast-in-situ concrete column |
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