CN113898093A - Assembled light steel-foam concrete load-bearing composite wall and construction method thereof - Google Patents
Assembled light steel-foam concrete load-bearing composite wall and construction method thereof Download PDFInfo
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- CN113898093A CN113898093A CN202111325579.5A CN202111325579A CN113898093A CN 113898093 A CN113898093 A CN 113898093A CN 202111325579 A CN202111325579 A CN 202111325579A CN 113898093 A CN113898093 A CN 113898093A
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- 239000011381 foam concrete Substances 0.000 title claims abstract description 58
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 85
- 239000010959 steel Substances 0.000 claims abstract description 85
- 239000004570 mortar (masonry) Substances 0.000 claims description 7
- 238000010079 rubber tapping Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 6
- 238000004321 preservation Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000005253 cladding Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004620 low density foam Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
- E04B2/60—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal characterised by special cross-section of the elongated members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/388—Separate connecting elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses an assembled light steel-foam concrete load-bearing composite wall and a construction method thereof, wherein the wall comprises a modular combined wall and spliced special-shaped columns for connecting each group of modular combined walls; the modular combined wall is formed by connecting a plurality of sections of concave wall units and convex wall units in an alternating mode in a mortise-tenon manner, the concave wall units are arranged at two ends of the modular combined wall, all test pieces of the wall can be produced in batches in a factory, complete assembly construction can be realized through mortise-tenon connection between members, wet operation is reduced, the wall is arranged flexibly and conveniently, the building industrialization is facilitated, foam concrete is selected for use as a filling material of the modular combined wall, heat preservation, heat insulation, sound insulation and impact resistance are good, hollowing in a traditional light steel wall structure can be eliminated, and the modular combined wall is light in weight and good in fireproof performance.
Description
Technical Field
The invention relates to the field of assembled load-bearing composite walls, in particular to an assembled light steel-foam concrete load-bearing composite wall and a construction method thereof.
Background
The building industrialization is a process for replacing the handicraft industry production mode with low quality, low efficiency and high cost in the traditional building industry by a modern production mode of manufacturing, transportation, installation and scientific management. The building components are produced in factories like commodities and transported to construction sites for assembly, so that the building components are time-saving, labor-saving, green and environment-friendly, and accord with the trend of development trend of the building industry in China.
The light steel structure house system gradually becomes an important development direction of the building industry industrialization process due to the excellent characteristics of light weight, good earthquake resistance, long service life and the like. In the prior art, a light steel wall body is generally formed by arranging C-shaped light steel keel upright columns at equal intervals of 400mm or 600mm, connecting the C-shaped light steel keel upright columns with light steel U-shaped guide rails by self-tapping screws to form a light steel framework, mounting cladding plates (gypsum boards, glass magnesium boards and the like) on two sides of the light steel framework, and filling insulating materials (rock wool, glass wool and the like) or pouring foam concrete slurry on site in cavities of the cladding plates, thereby forming a light steel combined wall body structure. In recent years, light steel modular buildings have also appeared, and the system takes rooms as modular units, is prefabricated in factories and transported to the field for assembly.
The light steel combined wall structure in the prior art has the following problems:
(1) the construction is inconvenient; the field loose assembly of the traditional light steel wall body relates to the carrying, the installation and the positioning of a large number of wallboards and keels in the construction process, the assembled parts are more, and the field construction process is complicated. The modular building often needs large-scale transportation and hoisting equipment, the radius of radiation for factory transportation is limited, and the specification and the size of a room are also limited.
(2) Poor living quality; the traditional light steel wall body is usually composed of a light steel keel framework, a cladding plate and a cavity filling layer, the living experience of the traditional light steel wall body is different from that of a concrete structure and a masonry structure, the traditional light steel wall body has hollowness feeling and poor shock resistance (is not suitable for being used as a household wall) due to knocking, the traditional light steel wall body does not accord with the living habit of Chinese common people, and wall hanging pieces (only can be hit on the steel keel) cannot be arranged by randomly nailing.
(3) The durability is poor; the traditional light steel wall body cladding plate has poor durability, needs regular maintenance and cannot reach the same service life as the structure.
(4) Poor fire resistance; the clad plates (gypsum boards) on two sides of the light steel wall body are easy to crack and fall off when being fired, and the steel keel is directly damaged by the fire more quickly.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide the assembled light steel-foam concrete load-bearing composite wall and the construction method thereof, the assembled light steel-foam concrete load-bearing composite wall is convenient to transport and portable to install, the foam concrete is used as the filling material, the weight is light, the fireproof performance is good, the heat preservation, the heat insulation, the sound insulation and the shock resistance are good, and the hollowing feeling in the traditional light steel wall structure can be eliminated.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides an assembled light steel-foam concrete load-bearing composite wall, which comprises a modular combined wall and spliced special-shaped columns for connecting each group of modular combined walls; the modular combined wall is formed by connecting a plurality of sections of concave wall units and convex wall units which are alternately arranged in a mortise-tenon manner, and the concave wall units are arranged at two ends of the modular combined wall;
the concave wall unit comprises a filling body, a keel framework covering the circumferential periphery of the filling body and concave section upright posts fixed on the left side and the right side of the keel framework;
the filling body comprises a middle foam concrete filling layer filled along the width direction of the keel framework and two side foam concrete filling layers respectively arranged at two sides;
a special-shaped steel wire mesh sheet is arranged between the middle foam concrete filling layer and the side foam concrete filling layer, and thorn-shaped bulges are uniformly arranged on two sides of the special-shaped steel wire mesh sheet;
an embedded pipeline is arranged in the middle foam concrete filling layer;
the convex wall unit comprises a filling body, a keel framework covering the circumferential periphery of the filling body and convex section stand columns which are fixed on the left side and the right side of the keel framework and can be in mortise and tenon connection with the concave section stand columns;
the upper ends of the concave wall unit and the convex wall unit are respectively provided with a plurality of construction multifunctional embedded parts, and the two side surfaces of the concave wall unit and the convex wall unit along the width direction are respectively provided with a plurality of transportation and protection multifunctional embedded parts; the bottoms of the concave wall units and the convex wall units are provided with foundation connecting pieces for installing foundation bolts;
preferably, the column with the concave cross section comprises a cap-shaped cross section light steel keel, the C-shaped cross section light steel keel is fixed at an opening of the cap-shaped cross section light steel keel to form a concave shape, the column with the convex cross section comprises a cap-shaped cross section light steel keel, and the cap-shaped cross section light steel keel and the back of the C-shaped cross section light steel keel are fixed together to form a convex shape.
Preferably, the spliced special-shaped column comprises a square steel pipe column, and a hat-shaped section light steel keel is fixed on the side surface of the square steel pipe column and is used for being matched with the concave section upright column.
Preferably, the filling density of the intermediate foam concrete filling layer is
The density of the side foam concrete filling layer is
Preferably, the keel framework comprises an upper guide rail arranged at the upper end and a lower guide rail arranged at the lower end, and the upper guide rail and the lower guide rail are made of C-shaped section light steel keels or U-shaped section light steel keels.
Preferably, the multifunctional embedded part for construction comprises a first T-shaped connecting part and an end-grain ribbed steel bar, the first T-shaped connecting part is arranged inside the concave wall unit or the convex wall unit, the upper end face of the first T-shaped connecting part is welded with the upper guide rail, a vertical threaded through hole is formed in the center of the first T-shaped connecting part, a hole matched with the threaded through hole is formed in the upper guide rail, one end of the end-grain ribbed steel bar is in threaded connection with the threaded through hole, and a cylindrical head is arranged at the other end of the end-grain ribbed steel bar.
Preferably, the multifunctional embedded part comprises a second T-shaped connecting part, the upper end face of the second T-shaped connecting part is welded with the special-shaped steel wire mesh, a threaded hole is formed in the cylinder in the middle of the second T-shaped connecting part, and the height of the second T-shaped connecting part is the same as the thickness of the side foam concrete filling layer.
Preferably, the foundation connecting piece is a steel box-shaped piece formed by assembling a top plate, a bottom plate and three side plates, a slotted hole is formed in the bottom plate, the foundation connecting piece is arranged inside the concave wall unit or the convex wall unit, the bottom plate of the foundation connecting piece is welded with the lower guide rail, a rectangular cover plate is further arranged on the upper end face of the bottom plate, and a round hole matched with the slotted hole is formed in the rectangular cover plate.
The invention also provides a construction method of the assembled light steel-foam concrete load-bearing composite wall, which comprises the following steps:
1) prefabricating the spliced special-shaped column, the concave wall unit, the convex wall unit and required parts in a factory, transporting to the site, and positioning the placement positions of all objects;
2) hoisting each spliced special-shaped column to a specified position and vertically fixing the spliced special-shaped columns on the ground;
3) sequentially hoisting the concave wall unit and the convex wall unit to a specified position, so that the tenon of the spliced special-shaped column and the groove of the concave wall unit are mutually meshed, and the groove of the concave wall unit and the tenon of the convex wall unit are mutually meshed;
4) installing a temporary wall diagonal brace at the position of the multifunctional embedded part for transportation and protection, vertically fixing the wall by adopting foundation bolts, fixedly connecting the tenon of the spliced special-shaped column with the groove of the concave wall unit by adopting self-tapping screws, and fixedly connecting the groove of the concave wall unit with the tenon of the convex wall unit by adopting self-tapping screws;
5) and spraying mortar at the joints of the abutted seams between the walls and the hole of the basic connecting piece, and leveling the joints and the hole of the basic connecting piece.
The invention has the beneficial effects that:
1) the construction efficiency is improved; the lightweight steel wall body is divided into the modularized combined wall body and the spliced special-shaped column, all test pieces are produced in batches in a factory, the transportation and protection multifunctional embedded parts are arranged in the wall body and used for hoisting, transporting and installing temporary inclined struts, the construction multifunctional embedded parts are used for on-site hoisting construction and installing anti-pulling anchor bolts, the wall body is connected with the ground through the bolts of the foundation connecting pieces, complete assembly construction can be realized through mortise and tenon connection between the components, wet operation is reduced, the wall body is flexible in arrangement and convenient to install, and building industrialization is facilitated.
2) The quality of the living environment is improved; according to the invention, the foam concrete is filled in the light steel keel frame, a large number of closed air holes are formed in the foam concrete, the heat conductivity coefficient is low, the finished wall has good heat preservation, heat insulation, sound insulation and shock resistance, the hollowing feeling in the traditional light steel wall structure is eliminated, the wall surface hanging piece can be nailed randomly, and the hanging force is strong.
3) The self weight of the wall body is reduced, and the durability of the wall body is improved; according to the invention, three layers of foam concrete are adopted, the middle foam concrete filling layer adopts ultra-low density foam concrete, the self weight of the wall body is reduced, the foam concrete filling layers on the two side edges adopt higher density foam concrete, the cracking of the surface of the wall body is effectively inhibited, and meanwhile, the reinforcing mesh is arranged between each layer, so that the insufficient bonding force between the layers is avoided.
4) The fireproof performance is good; the foam concrete belongs to inorganic materials, can not burn, has good fire resistance, and can effectively delay the temperature rise of a stressed member in case of fire.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram (exploded view) of an assembled lightweight steel-foam concrete load-bearing composite wall provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram (top view) of an assembled lightweight steel-foam concrete load-bearing composite wall provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a concave wall unit according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a sectional shaped column according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a post of convex cross-section provided by an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a concave section post provided in accordance with an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a multifunctional embedded part for construction according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a multifunctional embedded part for operation and maintenance provided in the embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a base connector according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a shaped steel wire mesh provided in an embodiment of the present invention.
Description of reference numerals:
1. a concave wall unit; 2. a convex wall unit; 3. splicing the special-shaped columns; 11. constructing a multifunctional embedded part; 12. a side foam concrete filling layer; 13. a special-shaped steel wire mesh sheet; 14. a column with a concave section; 15. pre-burying a pipeline; 16. carrying and protecting the multifunctional embedded part; 17. a base connector; 18. a middle foam concrete filling layer; 20. a convex section pillar; 31. a square steel pipe column; 41. cap section light steel keel; 42. c-shaped section light steel keel; 51. a first T-shaped connector; 52. end-grain ribbed steel bars; 53. a cylindrical head; 54. a second T-shaped connector; 171. a base plate; 172. a rectangular cover plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 10, a fabricated lightweight steel-foam concrete load-bearing composite wall and a construction method thereof,
the combined wall comprises a modularized combined wall body and spliced special-shaped columns 3 for connecting each group of modularized combined wall bodies; the modularized combined wall is formed by connecting a plurality of sections of concave wall units 1 and convex wall units 2 which are alternately arranged in a mortise-tenon manner, and the concave wall units 1 are arranged at two ends of the modularized combined wall;
the concave wall unit 1 comprises a filling body, a keel framework covering the circumferential periphery of the filling body and concave section upright posts 14 fixed on the left side and the right side of the keel framework;
the filling body comprises a middle foam concrete filling layer 18 filled along the width direction of the keel framework and two side foam concrete filling layers 12 respectively arranged at two sides;
a special-shaped steel wire mesh 13 is arranged between the middle foam concrete filling layer 18 and the side foam concrete filling layers 12, and thorn-shaped bulges are uniformly arranged on two sides of the special-shaped steel wire mesh 13;
an embedded pipeline 15 is arranged in the middle foam concrete filling layer 18;
the convex wall unit 2 comprises a filling body, a keel framework covering the circumferential periphery of the filling body and convex section upright columns 20 which are fixed on the left side and the right side of the keel framework and can be in mortise and tenon connection with the concave section upright columns 14;
the upper ends of the concave wall unit 1 and the convex wall unit 2 are respectively provided with a plurality of construction multifunctional embedded parts 11, and the two side surfaces of the concave wall unit 1 and the convex wall unit 2 along the width direction are respectively provided with a plurality of transportation and protection multifunctional embedded parts 16; the bottoms of the concave wall units 1 and the convex wall units 2 are provided with foundation connecting pieces 17 for installing foundation bolts;
the column 14 with the concave cross section comprises a cap-shaped cross section light steel keel 41, the C-shaped cross section light steel keel 42 is fixed at the opening of the cap-shaped cross section light steel keel 41 to form a concave shape, the column 20 with the convex cross section comprises the cap-shaped cross section light steel keel 41, and the cap-shaped cross section light steel keel 41 and the C-shaped cross section light steel keel 42 are fixed together at the back to form a convex shape.
The spliced special-shaped column 3 comprises a square steel pipe column 31, and a hat-shaped section light steel keel 41 is fixed on the side surface of the square steel pipe column 31 and is used for being matched with the concave section upright column 14.
The filling density of the foam concrete in the middle foam concrete filling layer 18 is
The density of the side foam concrete filling layer 12 is
The keel framework comprises an upper guide rail arranged at the upper end and a lower guide rail arranged at the lower end, wherein the upper guide rail and the lower guide rail are made of C-shaped section light steel keels or U-shaped section light steel keels.
The multifunctional embedded part 11 for construction comprises a first T-shaped connecting piece 51 and end-grain ribbed steel bars 52, wherein the first T-shaped connecting piece 51 is arranged inside a concave wall unit 1 or a convex wall unit 2, the upper end face of the first T-shaped connecting piece 51 is welded with an upper guide rail, a vertical threaded through hole is formed in the center of the first T-shaped connecting piece 51, a hole matched with the threaded through hole is formed in the upper guide rail, one end of each end-grain ribbed steel bar 52 is in threaded connection with the threaded through hole, and a cylindrical head 53 is arranged at the other end of each end-grain ribbed steel bar 52.
The multifunctional embedded part 16 comprises a second T-shaped connecting part 54, the upper end face of the second T-shaped connecting part 54 is welded with the special-shaped steel wire mesh 13, a threaded hole is formed in the cylinder in the middle of the second T-shaped connecting part 54, and the height of the second T-shaped connecting part 54 is the same as the thickness of the side foam concrete filling layer 12.
Basic connection spare 17 is roof, bottom plate 171 and the steel box that forms is assembled to three curb plate, it has the slotted hole to open on the bottom plate 171, basic connection spare establishes inside concave type wall unit 1 or convex type wall unit 2, basic connection spare's bottom plate 171 and lower rail welded, the up end of bottom plate 171 still is equipped with rectangle apron 172, it has the round hole with slotted hole matched with to open on the rectangle apron 172.
The embodiment of the invention also provides a construction method of the assembled light steel-foam concrete load-bearing composite wall, which comprises the following steps:
1) prefabricating the spliced special-shaped column 3, the concave wall unit 1, the convex wall unit 2 and required parts in a factory, transporting to the site, and positioning the placement positions of all objects;
2) hoisting each spliced special-shaped column 3 to a specified position and vertically fixing the column on the ground;
3) sequentially hoisting the concave wall unit 1 and the convex wall unit 2 to specified positions, so that the tenon of the spliced special-shaped column 3 and the groove of the concave wall unit 1 are mutually meshed, and the groove of the concave wall unit 1 and the tenon of the convex wall unit 2 are mutually meshed;
4) installing a temporary wall diagonal brace at the position of the multifunctional conveying and protecting embedded part 16, vertically fixing the wall by adopting foundation bolts, fixedly connecting the tenon of the spliced special-shaped column 3 with the groove of the concave wall unit 1 by adopting self-tapping screws, and fixedly connecting the groove of the concave wall unit 1 with the tenon of the convex wall unit 2 by adopting self-tapping screws;
5) and spraying mortar, namely spraying mortar at the joint of the abutted seams between the walls and the position of the hole of the basic connecting piece 17, and leveling the mortar.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. An assembled light steel-foam concrete load-bearing composite wall body is characterized in that,
comprises a modularized combined wall body and a spliced special-shaped column (3) used for connecting each group of modularized combined wall bodies; the modularized combined wall is formed by connecting a plurality of sections of concave wall units (1) and convex wall units (2) which are alternately arranged in a mortise-tenon manner, and the concave wall units (1) are arranged at two ends of the modularized combined wall;
the concave wall unit (1) comprises a filling body, a keel framework covering the circumferential periphery of the filling body and concave section upright posts (14) fixed on the left side and the right side of the keel framework;
the filling body comprises a middle foam concrete filling layer (18) filled along the width direction of the keel framework and two side foam concrete filling layers (12) respectively arranged at two sides;
a special-shaped steel wire mesh (13) is arranged between the middle foam concrete filling layer (18) and the side foam concrete filling layers (12), and thorn-shaped protrusions are uniformly arranged on two sides of the special-shaped steel wire mesh (13);
an embedded pipeline (15) is arranged in the middle foam concrete filling layer (18);
the convex wall unit (2) comprises a filling body, a keel framework covering the circumferential periphery of the filling body and convex section columns (20) which are fixed on the left side and the right side of the keel framework and can be in mortise and tenon connection with the concave section columns (14);
the upper ends of the concave wall unit (1) and the convex wall unit (2) are respectively provided with a plurality of construction multifunctional embedded parts (11) for vertically hanging and installing an anti-pulling anchor bolt, and the two side surfaces of the concave wall unit (1) and the convex wall unit (2) along the width direction are respectively provided with a plurality of transportation and protection multifunctional embedded parts (16) for horizontally hanging and installing temporary inclined struts; the bottoms of the concave wall units (1) and the convex wall units (2) are provided with foundation connecting pieces (17) for installing foundation bolts.
2. The fabricated lightweight steel-foam concrete load-bearing composite wall body as claimed in claim 1, wherein: the column (14) with the concave cross section comprises a cap-shaped cross section light steel keel (41), the C-shaped cross section light steel keel (42) is fixed at the opening of the cap-shaped cross section light steel keel (41) to form a concave shape, the column (20) with the convex cross section comprises the cap-shaped cross section light steel keel (41), and the cap-shaped cross section light steel keel (41) and the back of the C-shaped cross section light steel keel (42) are fixed together to form a convex shape.
3. The fabricated lightweight steel-foam concrete load-bearing composite wall body as claimed in claim 1, wherein: the spliced special-shaped column (3) comprises a square steel pipe column (31), and a hat-shaped section light steel keel (41) is fixed on the side surface of the square steel pipe column (31) and is used for being matched with the concave section column (14).
4. The fabricated lightweight steel-foam concrete load-bearing composite wall body as claimed in claim 1, wherein: the filling density of the middle foam concrete filling layer (18) is 100-400 kg/m3The density of the side foam concrete filling layer (12) is 800-900 kg/m3。
5. The fabricated lightweight steel-foam concrete load-bearing composite wall body as claimed in claim 1, wherein: the keel framework comprises an upper guide rail arranged at the upper end and a lower guide rail arranged at the lower end, wherein the upper guide rail and the lower guide rail are made of C-shaped section light steel keels or U-shaped section light steel keels.
6. The fabricated light steel-foam concrete load-bearing composite wall body of claim 5, wherein: the multifunctional embedded part (11) comprises a first T-shaped connecting piece (51) and end-grain ribbed steel bars (52), wherein the first T-shaped connecting piece (51) is arranged inside a concave wall unit (1) or a convex wall unit (2), the upper end face of the first T-shaped connecting piece (51) is welded with an upper guide rail, a vertical threaded through hole is formed in the center of the first T-shaped connecting piece (51), a hole matched with the threaded through hole is formed in the upper guide rail, one end of each end-grain ribbed steel bar (52) is in threaded connection with the threaded through hole, and a cylindrical head (53) is arranged at the other end of each end-grain ribbed steel bar (52).
7. The fabricated light steel-foam concrete load-bearing composite wall body of claim 5, wherein: the multifunctional embedded part (16) comprises a second T-shaped connecting part (54), the upper end face of the second T-shaped connecting part (54) is welded with a special-shaped steel wire mesh sheet (13), a threaded hole is formed in the middle of the second T-shaped connecting part (54), and the height of the second T-shaped connecting part (54) is the same as the thickness of the side foam concrete filling layer (12).
8. The fabricated light steel-foam concrete load-bearing composite wall body of claim 5, wherein: basic connection spare (17) are roof, bottom plate (171) and three curb plate and assemble the steel box-shaped spare that forms, it has the slotted hole to open on bottom plate (171), basic connection spare is established inside concave type wall unit (1) or protruding type wall unit (2), basic connection spare's bottom plate (171) and lower rail welding, the up end of bottom plate (171) still is equipped with rectangle apron (172), it has the round hole with slotted hole matched with to open on rectangle apron (172).
9. The construction method of the fabricated lightweight steel-foam concrete load-bearing composite wall body as claimed in claim 1, wherein the method comprises the following steps:
1) prefabricating the spliced special-shaped column (3), the concave wall unit (1), the convex wall unit (2) and required parts in a factory, then transporting to the site, and positioning the placement positions of all objects; the multifunctional conveying and protecting embedded part is used for conveying and installing the inclined strut, and the multifunctional constructing embedded part is used for hoisting and installing the wall body on site;
2) hoisting each spliced special-shaped column (3) to a specified position and vertically fixing the column on the ground;
3) sequentially hoisting the concave wall units (1) and the convex wall units (2) to a specified position, so that the tenons of the spliced special-shaped columns (3) and the grooves of the concave wall units (1) are mutually meshed, and the grooves of the concave wall units (1) and the tenons of the convex wall units (2) are mutually meshed;
4) installing a temporary wall diagonal brace at the position of the multifunctional conveying and protecting embedded part (16), vertically fixing the wall by adopting foundation bolts, fixedly connecting the tenon of the spliced special-shaped column (3) with the groove of the concave wall unit (1) by adopting self-tapping screws, and fixedly connecting the groove of the concave wall unit (1) with the tenon of the convex wall unit (2) by adopting self-tapping screws;
5) and spraying mortar, namely spraying the mortar at the joint of the abutted seams between the walls and the hole of the basic connecting piece (17), and leveling the mortar.
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