CN108589982B - Assembled composite wall structure based on indirect welded connection of reinforcing steel bars and construction method thereof - Google Patents
Assembled composite wall structure based on indirect welded connection of reinforcing steel bars and construction method thereof Download PDFInfo
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- CN108589982B CN108589982B CN201810668826.3A CN201810668826A CN108589982B CN 108589982 B CN108589982 B CN 108589982B CN 201810668826 A CN201810668826 A CN 201810668826A CN 108589982 B CN108589982 B CN 108589982B
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- prefabricated composite
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- composite wall
- wallboard
- steel plates
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- 239000002131 composite material Substances 0.000 title claims abstract description 80
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 229910001294 Reinforcing steel Inorganic materials 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000004567 concrete Substances 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 14
- 239000004570 mortar (masonry) Substances 0.000 claims description 11
- 239000006260 foam Substances 0.000 claims description 9
- 238000005187 foaming Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000010606 normalization Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 238000011065 in-situ storage Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
-
- 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
- E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
- E04B2/82—Removable non-load-bearing partitions; Partitions with a free upper edge characterised by the manner in which edges are connected to the building; Means therefor; Special details of easily-removable partitions as far as related to the connection with other parts of the building
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Panels For Use In Building Construction (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The assembled composite wall structure based on the indirect welded connection of the reinforcing steel bars and the construction method thereof comprise the arrangement of embedded parts of the prefabricated composite wall plate and the construction method of connection, wherein embedded steel plates are arranged at the bottoms of rib columns of the prefabricated composite wall plate and at the two ends of other rib beams except for the top rib beam and the bottom rib beam, and the embedded steel plates are also arranged above the hidden beam corresponding to the rib columns of the prefabricated composite wall plate. The invention belongs to dry connection, has simple process, good choice of embedded parts and reinforcing steel bars, easy manufacture, safe and reliable welded connection, can realize normalization, unification and diversification of the wallboard with the embedded parts, has the advantages of energy consumption and shock absorption, ecological environmental protection, quick construction, economy and practicality, and the like, and has simple joint processing operation and good compactness.
Description
Technical Field
The invention belongs to the technical field of buildings, relates to wall connection of an assembled composite wall structure, and particularly relates to an assembled composite wall structure based on indirect welding connection of reinforcing steel bars and a construction method thereof.
Background
At present, the building industry in China still uses a large amount of traditional processes, and the traditional processes have the defects of large raw material field waste, long construction period, large building energy consumption, environmental pollution caused by garbage generated by buildings, influence of noise on resident life, dust pollution on air and the like. Aiming at the problems, the development of applicable, economical and green buildings, the improvement of the building technical level, the safety standard and the engineering quality and the great promotion of the assembled building are a trend. The assembled building has the characteristics of standardized design, industrialized component production, mechanized construction and the like, and the on-site wet operation and the use of labor force can be greatly reduced through the assembled construction, so that the assembled building is a main development direction of future buildings in China.
The key points of success and failure of the assembled concrete structure are boundary connection technology between prefabricated components and between the prefabricated components and cast-in-situ and post-cast concrete, wherein the boundary connection technology comprises the selection of connection joints and the structural design of connection nodes. The connection technology of prefabricated wall panels can be classified into wet connection and dry connection according to construction methods. The wet connection is performed by pouring concrete or grouting between two prefabricated components; the wet connection is a common and convenient connection mode in the connection mode of the prefabricated components, and has the advantages of more convenient construction, good connection quality and more approximate structural overall performance to that of a cast-in-place concrete structure. The dry connection is carried out by implanting a reinforcing steel sleeve or an embedded part into the prefabricated part, and carrying out connection by sleeve grouting, bolts or welding; the dry type connection has the advantages of higher precision, shortened construction period, easy repair of damaged nodes after earthquake, convenient installation in remote areas and the like, and is a development trend of future assembly type connection technology. Comprehensively considering the advantages and disadvantages of the connection, the connecting technology of the assembled prefabricated composite wallboard in an all-welded mode is provided, the technology is reasonable in design, convenient to construct and low in input cost, and the connecting performance is also relatively good, so that the industrial production, the mechanical construction is realized, the resources are saved, the environment is protected, and the current residential industrialization development direction is met.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide an assembled composite wall structure based on indirect welding connection of reinforcing steel bars and a construction method thereof.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an assembled composite wall structure based on indirect welded connection of reinforcing bar, includes prefabricated composite wallboard 4, its characterized in that prefabricated composite wallboard 4's rib post bottom and other rib roof beam both ends except that top rib roof beam and bottom rib roof beam set up pre-buried steel sheet 3, and the rib post that corresponds prefabricated composite wallboard 4 in dark roof beam 6 top also sets up pre-buried steel sheet 3, through the pre-buried steel sheet 3 between the adjacent prefabricated composite wallboard 4 of ribbed bar 1 welded connection level to and pre-buried steel sheet 3 between prefabricated composite wallboard 4 and its lower part dark roof beam 6.
The EPS foam strips 2 are filled between the horizontally adjacent prefabricated composite wallboards.
And a mortar cushion layer 5 is arranged between the prefabricated composite wallboard 4 and the hidden beam 6 at the lower part of the prefabricated composite wallboard.
The prefabricated composite wallboard 4 consists of concrete frame and embedded light ecological filling blocks.
The invention also provides a construction method of the assembled composite wall structure based on the indirect welded connection of the reinforcing steel bars, which comprises the following steps:
step one: production of prefabricated composite wall panel 4
Firstly, assembling a special steel template, placing a pre-buried steel plate 3, pouring concrete at the bottom layer, then placing ecological blocks, placing processed transverse ribs and longitudinal rib steel bars 9 into the template, pouring the concrete after confirming no errors, then leveling and plastering, carrying out standard maintenance after prefabrication, and removing the template when the strength reaches the requirement to form a prefabricated composite wallboard 4;
step two: horizontal seam connection of prefabricated composite wallboard
Welding the ribbed steel bar 1 and the embedded steel plate 3 on the hidden beam 6, keeping the length direction of the ribbed steel bar 1 consistent with the length direction of the prefabricated composite wallboard 4, leveling the surface of the hidden beam 6 at the position corresponding to the prefabricated composite wallboard 4 by adopting mortar, carrying out joint filling treatment, hoisting the prefabricated composite wallboard 4 to the corresponding position, and finally connecting the ribbed steel bar 1 with the embedded steel plate 3 at the bottom of the prefabricated composite wallboard 4 in a welding mode;
step three: vertical seam connection of prefabricated composite wallboard 4
When the horizontal joints of two prefabricated composite wallboards 4 meet the requirements, the ribbed steel bars 1 are adopted to weld and connect the embedded steel plates 3 of the adjacent prefabricated composite wallboards 4 together, the EPS foam strips 2 are plugged into the vertical joints parallel to the ribbed lattice, the EPS foam strips 2 are treated by using foaming glue, then the vertical joints are leveled by using mortar, and finally the middle gap part is filled by grouting with high-strength grouting material.
In the first step, vertical anchor bars 10 are arranged in rib columns and hidden beams 6 of the prefabricated composite wallboard 4, and pre-buried steel plates 3 at corresponding positions are welded with the vertical anchor bars 10; horizontal anchor bars 11 are arranged in the rib beams of the prefabricated composite wallboard 4, and the embedded steel plates 3 at corresponding positions are welded with the horizontal anchor bars 11.
Compared with the prior art, the invention has the beneficial effects that:
1. the structural connection adopts a dry welding connection method, the process is relatively simple, and the operation is easy.
2. The pre-buried steel plate and the ribbed steel bar have good selectivity and are easy to manufacture.
3. The welding connection mode is safe and reliable.
4. The wallboard with the embedded part can realize normalization, unification and diversification of key parts so as to meet the diversification requirements of different buildings, and has the advantages of energy consumption, shock absorption, ecological environmental protection, rapid construction, economy, practicability and the like;
5. the adopted joint processing mode is simple to operate and good in compactness.
Drawings
Fig. 1 is a schematic view of the dry connection arrangement of the prefabricated composite wall panel of the present invention.
Fig. 2 is a schematic view of the horizontal slit configuration of the present invention.
Fig. 3 is a schematic view of the connection of the embedded steel plates in the horizontal slit structure of the present invention.
Fig. 4 is a schematic view of the vertical slit configuration of the present invention.
Fig. 5 is a schematic view of the connection of pre-buried steel plates in the vertical seam construction of the present invention.
FIG. 6 is a schematic view of the arrangement of the weld of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples.
The invention discloses an assembled composite wall structure based on indirect welded connection of reinforcing steel bars, which is characterized by mainly comprising arrangement of pre-embedded steel plates, treatment of horizontal joints between wall boards and floor slabs and treatment of vertical joints between the wall boards.
Arranging the embedded steel plates:
as shown in figure 1, the prefabricated composite wallboard 4 is formed by embedding a lightweight ecological filling block material into a concrete frame lattice with a smaller section and reinforcing bars, and has the advantages of light weight, good ductility, excellent anti-seismic performance, economy, applicability and the like compared with the common reinforced concrete cast-in-situ. The embedded part adopts an embedded steel plate 3 with the length, width and height dimensions of 200mm multiplied by 150mm multiplied by 10mm, when the prefabricated composite wallboard 4 is prefabricated, the vertical connection part is mainly arranged at the bottom of a rib column, the horizontal connection part is mainly arranged at two ends of a rib beam, but the top rib beam and the bottom rib beam are not arranged, each connection part is provided with the embedded steel plate 3, and simultaneously, when the hidden beam 6 and the cast-in-situ layer 7 of the composite floor slab are cast in situ, the embedded steel plate 3 is arranged on the hidden beam 6 and corresponds to the rib column part of the prefabricated composite wallboard 4, wherein the cast-in-situ layer 7 of the composite floor slab is cast above the precast layer 8 of the composite floor slab.
And (3) treating horizontal joints of the wallboard and the floor slab:
as shown in fig. 2 and 3, after the strength of the cast-in-situ layer 7 and the hidden beam 6 of the composite floor slab meets the requirement, ribbed steel bars 1 with the length of 150mm and the diameter phi 18 are adopted as connecting steel bars, the connecting steel bars are welded with the embedded steel plates 3 at the top of the hidden beam 6 and the embedded steel plates 3 at the bottom of the prefabricated composite wallboard 4, and the welding seams 12 between the connecting steel bars and the connecting steel bars are subjected to joint filling treatment by adopting mortar, so that a mortar cushion layer 5 is formed.
The prefabricated composite wallboard 4 and the top plate are treated by adopting cast-in-place concrete.
Treatment of vertical joints between wallboard:
as shown in fig. 4 and 5, ribbed steel bars 1 with the length of 150mm and the diameter phi 18 are adopted as connecting steel bars, the connecting steel bars are welded with embedded steel plates 3 between horizontally adjacent prefabricated composite wallboards 4, and other welding seams 12 are sequentially treated by high-strength grouting materials, EPS foam strips 2, foaming glue and mortar.
The invention also provides a construction method of the assembled composite wall structure based on the indirect welded connection of the reinforcing steel bars, which comprises the following steps:
step one: production of prefabricated composite wall panel 4
Firstly, assembling a special steel template, putting a pre-buried steel plate 3 manufactured before wallboard member production, pouring 20mm thick C30 fine stone concrete at the bottom layer, immediately putting ecological blocks, putting processed transverse ribs and longitudinal rib steel bars 9 into the template, putting the pre-buried steel plate 3 with anchor bars at rib beams and rib columns around a prefabricated composite wallboard 4, pouring the C30 fine stone concrete after confirming, then leveling and plastering, carrying out standard maintenance after prefabrication is completed, and removing the template when the strength meets the requirement, thus forming the prefabricated composite wallboard 4;
step two: vertical connection of prefabricated composite wallboard
Welding the ribbed steel bar 1 and the embedded steel plate 3 on the hidden beam 6, keeping the length direction of the ribbed steel bar 1 consistent with the length direction of the prefabricated composite wallboard 4, leveling the surface of the hidden beam 6 at the position corresponding to the prefabricated composite wallboard 4 by adopting mortar, carrying out joint filling treatment, hoisting the prefabricated composite wallboard 4 to the corresponding position, and finally connecting the ribbed steel bar 1 with the embedded steel plate 3 at the bottom of the prefabricated composite wallboard 4 by welding;
step three: horizontal connection of prefabricated composite wall panels 4
When the vertical connection of the two prefabricated composite wallboards 4 meets the requirement, the ribbed steel bars 1 are adopted to connect the embedded steel plates 3 of the two prefabricated composite wallboards 4 together, the EPS foam strips 2 of phi 25 are plugged into the vertical joints parallel to the rib grids, the EPS foam strips 2 are treated by using the foaming adhesive, then the vertical joints are leveled by using the mortar, and finally the middle gap part is filled by high-strength grouting.
Claims (2)
1. The construction method of the assembled composite wall structure based on the indirect welded connection of the reinforcing steel bars comprises the steps of prefabricating composite wall boards (4), arranging pre-buried steel plates (3) at the bottoms of rib columns of the prefabricated composite wall boards (4) and at the two ends of rib beams except for top rib beams and bottom rib beams, arranging pre-buried steel plates (3) above hidden beams (6) corresponding to the rib columns of the prefabricated composite wall boards (4), and welding pre-buried steel plates (3) between horizontally adjacent prefabricated composite wall boards (4) and pre-buried steel plates (3) between the prefabricated composite wall boards (4) and hidden beams (6) at the lower parts of the pre-buried steel plates; EPS foam strips (2) are filled between the horizontally adjacent prefabricated composite wallboards, and a mortar cushion layer (5) is arranged between the prefabricated composite wallboards (4) and a hidden beam (6) at the lower part of the prefabricated composite wallboards;
the method is characterized by comprising the following steps of:
step one: production prefabricated composite wallboard (4)
Firstly, assembling a special steel template, placing a pre-buried steel plate (3), placing concrete at the bottom layer, placing ecological blocks, placing processed transverse ribs and longitudinal rib steel bars (9) into the template, placing concrete after confirming no errors, then leveling and plastering, carrying out standard maintenance after prefabrication is completed, and removing the template when the strength reaches the requirement to form a prefabricated composite wallboard (4);
the rib columns and the hidden beams (6) of the prefabricated composite wallboard (4) are provided with vertical anchor bars (10), and the embedded steel plates (3) at corresponding positions are welded with the vertical anchor bars (10); horizontal anchor bars (11) are arranged in rib beams of the prefabricated composite wallboard (4), and pre-buried steel plates (3) at corresponding positions are welded with the horizontal anchor bars (11);
step two: horizontal seam connection of prefabricated composite wallboard
Welding the ribbed steel bar (1) and the embedded steel plate (3) on the hidden beam (6), keeping the length direction of the ribbed steel bar (1) consistent with the length direction of the prefabricated composite wallboard (4), leveling and caulking the surface of the hidden beam (6) at the position corresponding to the prefabricated composite wallboard (4) by adopting mortar, hoisting the prefabricated composite wallboard (4) to the corresponding position, and finally connecting the ribbed steel bar (1) with the embedded steel plate (3) at the bottom of the prefabricated composite wallboard (4) in a welding mode;
step three: vertical seam connection of prefabricated composite wallboard (4)
When the horizontal joints of two prefabricated composite wallboards (4) meet the requirements, the embedded steel plates (3) of the adjacent prefabricated composite wallboards (4) are welded together by adopting ribbed steel bars (1), EPS foam strips (2) are plugged into the vertical joints parallel to the ribbed grid, the EPS foam strips (2) are treated by using foaming glue, then the vertical joints are leveled by using mortar, and finally, the middle gap part is filled by grouting with high-strength grouting material.
2. The construction method of the assembled composite wall structure based on the indirect welded connection of the reinforcing steel bars according to claim 1, wherein the prefabricated composite wall panel (4) consists of a concrete sash and a light ecological filling block embedded in the concrete sash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810668826.3A CN108589982B (en) | 2018-06-26 | 2018-06-26 | Assembled composite wall structure based on indirect welded connection of reinforcing steel bars and construction method thereof |
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| CN201810668826.3A CN108589982B (en) | 2018-06-26 | 2018-06-26 | Assembled composite wall structure based on indirect welded connection of reinforcing steel bars and construction method thereof |
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| Publication Number | Publication Date |
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| CN108589982A CN108589982A (en) | 2018-09-28 |
| CN108589982B true CN108589982B (en) | 2023-11-21 |
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| CN113502971B (en) * | 2021-02-07 | 2022-10-11 | 北京市住宅产业化集团股份有限公司 | Longitudinal rib hollow wall, embedded nut connecting node thereof and design construction method |
| CN113051651A (en) * | 2021-04-02 | 2021-06-29 | 西安建筑科技大学 | Materialization expression method of steel bar broken material node information |
| CN114592743B (en) * | 2022-03-19 | 2024-03-22 | 北京工业大学 | Assembled composite wallboard L-shaped constructional column and ecological interior wall self-tapping screw block connection structure and manufacturing method |
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| CN108589982A (en) | 2018-09-28 |
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