CN108643390B - Assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall - Google Patents

Assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall Download PDF

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Publication number
CN108643390B
CN108643390B CN201810223326.9A CN201810223326A CN108643390B CN 108643390 B CN108643390 B CN 108643390B CN 201810223326 A CN201810223326 A CN 201810223326A CN 108643390 B CN108643390 B CN 108643390B
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steel
frame
concrete
combined
plate
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CN108643390A (en
Inventor
曹万林
王如伟
殷飞
刘岩
乔崎云
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Beijing University of Technology
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Beijing University of Technology
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/58Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal

Abstract

The invention relates to an assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall. According to the invention, the steel tube concrete frame columns, the steel tube concrete frame beams and the wall steel tube concrete truss ribs are combined to form a wall steel tube concrete truss stress system, and form a combined wall steel framework together with the punched thin steel plate, so that the integrity of the wall plate is improved. The assembled combined wall structure integrates heat preservation, has better bending resistance, shearing resistance and plane external rigidity, and good anti-seismic performance, and meanwhile, the wall boards are produced by factories and assembled on site, so that the common quality problems caused by site construction are effectively solved, the engineering construction efficiency is greatly improved, the engineering labor is reduced, and the assembled combined wall structure is suitable for being widely applied to low-rise rural multi-storey rural house structures.

Description

Assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall
Technical Field
The invention belongs to the technical field of manufacturing of assembled combined walls in building structure engineering, and particularly relates to an assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall and a manufacturing method thereof.
Background
At present, China is in a novel urbanization and new rural construction brisk development period, and a large amount of new rural construction and urgent new rural reconstruction targets lead simple integrated houses and low-rise fabricated houses to be developed in low-rise multi-storey rural house structures. In the present stage, the beam column frame formed by steel structural members or reinforced concrete structural members is mostly adopted by the integrated house and the fabricated house as a main stress system of the house structure, and the wall body is an external wall panel or a filler wall, so that the integrated house and the fabricated house have the excellent characteristics of convenience in disassembly and assembly, flexibility in layout, short construction period and the like. Meanwhile, as main components of the house structure, the external wall board and the filling wall board can only be used as an enclosure component of the house and can not participate in stress, the problems of low bearing capacity, poor ductility and frequent brittle failure of the house structure exist, the whole house also has the problems of poor stability and poor anti-seismic capacity, and thus the application of the integrated house and the fabricated house in the house is greatly restricted.
The building amount of villages and towns in China accounts for 60% of the total building amount of China, most of the rural houses are located in earthquake-resistant fortification areas, how to reasonably design and utilize the wall bodies, improve the bearing capacity of low-rise integrated houses and prefabricated houses, enhance the earthquake resistance of the low-rise integrated houses and the prefabricated houses, and not influence the advantage of flexible spatial layout of the low-rise integrated houses and the prefabricated houses, the wall bodies with the bearing capacity and the earthquake resistance function are applied to low-rise buildings, particularly to the low-rise rural farm house structure in the new rural construction period, and the method is the key for promoting novel urbanization and new.
Therefore, the development of the assembled combined wall which is economical, practical, low in manufacturing cost and simple and convenient to construct and is suitable for low-rise buildings, particularly low-rise rural farmhouse structures in villages and small towns has very important practical significance and social and economic values.
Disclosure of Invention
The invention provides an assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall, provides a construction method of a structural heat-preservation integrated assembled wall for low-rise integrated houses and assembled houses, has better bearing capacity and shock resistance compared with the traditional assembled wall, is suitable for being widely popularized in low-rise buildings with shock resistance fortification requirements, particularly low-rise rural houses in villages and small towns, and solves the current situation that the current rural house structure lacks shock resistance measures and is weak in shock resistance. Meanwhile, the components are easy to assemble and construct on site, and the development target of new rural construction can be promoted to be completed.
In order to achieve the purpose, the invention adopts the following technical scheme:
an assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall comprises a steel pipe concrete frame column (1), a steel pipe concrete frame beam (2), a punched thin steel plate (3), a steel pipe concrete truss rib (4), foamed concrete (5), a connecting end plate (6) and a connecting bolt (7); the punching thin steel plate (3) is a steel plate with a hole punched by a punch through a die on a steel plate with the plate thickness not more than 5mm, the hole center distance is not less than 50mm, and the punching area is not less than 1/2 of the area of the punching thin steel plate (3); respectively welding and connecting end plates (6) at the positions of the top and the base of the steel pipe concrete frame column (1), and prefabricating bolt holes on the connecting end plates (6); the steel tube concrete frame column (1) is welded with the steel tube concrete frame beam (2) to form a combined wall light steel frame, a punching thin steel plate (3) is welded inside the frame, then steel tube concrete truss ribs (4) are arranged on two sides of the punching thin steel plate in a crossed mode, two ends of each steel tube concrete truss rib (4) are welded and fixed with the combined wall light steel frame, and therefore the combined wall steel frame is formed; the wall plate foamed concrete (5) is poured by the supporting die, and an assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall is formed after curing; during assembly, the combined wall is connected with an external structure through a connecting bolt (7).
The assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall is characterized in that:
the steel pipe concrete frame column (1) and the steel pipe concrete frame beam (2) are square or rectangular steel pipes, the wall thickness of each steel pipe is not more than 8mm, the side length of the section of each steel pipe is not less than 50mm, and concrete is filled in the steel pipes. The steel pipe concrete has higher shearing bearing capacity, and the steel pipe concrete frame column (1) and the steel pipe concrete frame beam (2) are welded to form the combined wall light steel frame, so that the shearing strength of the wallboard is obviously improved.
The punching thin steel plate (3) is a steel plate with a circular hole, a square hole or a rectangular hole which is punched by a punch through a die, and the punching thin steel plate (3) is arranged in the middle of the frame of the light steel frame of the wallboard and is poured in the middle of the foamed concrete (5). The punched thin steel plate (3) is welded and fixed with the wallboard steel pipe concrete frame after being positioned, and is poured in concrete to play a role of reinforcing ribs, but the construction is simpler than the construction of configured steel bars, and the punched thin steel plate has the characteristics of strong integrity, uniform meshes, processing, low cost and the like, improves the plane external rigidity of the wallboard, and improves the seismic capacity of the wallboard.
The steel pipe concrete truss ribs (4) are formed by filling concrete into square or rectangular steel pipes, the wall thickness of each steel pipe is not more than 5mm, and the wall steel pipe concrete truss ribs (4) which are arranged on two sides of the punching thin steel plate (3) in a crossed mode are combined with the wall light steel frame frames to form a wallboard truss stress framework; when the foamed concrete (5) is poured, the steel pipe concrete truss ribs (4) are partially or completely poured in the wall board. Due to the arrangement of the steel pipe concrete truss ribs (4), the bending resistance, the shearing resistance and the out-of-plane bearing capacity of the wallboard are increased, and the anti-seismic level of the wallboard is improved.
The pouring thickness of the wallboard foamed concrete (5) is not less than 60 mm. According to the engineering requirement, adding the required admixture to prepare the foaming concrete with the performance required by the engineering. The foaming concrete forms a large number of closed foam holes in the concrete, realizes the light weight and the heat preservation and insulation of the building filling material, is a novel light heat preservation material, obviously reduces the weight of the member, and is convenient to transport and install.
The thickness of the steel plate adopted by the connecting end plate (6) is not less than 6mm, and bolt holes corresponding to the aperture of the connecting bolts (7) are machined in the connecting end plate. When the connecting end plate (6) is welded with the steel pipe concrete frame column (1), the reinforcing rib can be welded to strengthen the connection.
The connecting bolts (7) are not less than M16, the strength is not less than 8.8 grade, and when the combined wall is installed, the number of the connecting bolts (7) on each connecting end plate (6) is not less than 4.
Compared with the prior art, the assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall has the following advantages:
(1) the traditional assembled wall body is mostly an external wall panel or a large module infilled wall, and can only be used as an enclosure member of a house and can not participate in stress, so that the problems of poor integral stability, low bearing capacity, poor ductility, weak shock resistance and frequent occurrence of brittle failure of the house structure exist.
(2) The combined wall is selectively arranged in the column network as an anti-seismic unit and is arranged at the weak stress position of the low-rise building structure, so that the lateral rigidity and the anti-seismic capacity of the building structure are increased, and the building bay and the layout are not influenced.
(3) The steel pipe concrete frame column, the steel pipe concrete frame beam and the steel pipe concrete truss ribs form a steel pipe concrete truss stress system in the wallboard, the damage and damage form of the wall body is changed, and the bearing capacity and the ductility of the wall body can be effectively improved.
(4) The design of the steel tube concrete frame beam column-shaped wall body light steel frame improves the integrity of the wallboard, makes up the problem that the use of the concrete thin wallboard is influenced by the angle knocking and the cracking which are easily caused in the hoisting, transporting and constructing processes at the frame position of the concrete thin wallboard component, and improves the quality of the assembled wallboard.
(5) The punched thin steel plate plays a role in reinforcing the concrete wallboard, but is simpler and easier to construct than a method for configuring steel bars, is easy to position, has the characteristics of strong integrity, uniform meshes, low cost and the like, is easy to process, improves the out-of-plane rigidity of the wallboard, and improves the seismic capacity of the wallboard.
(6) The steel pipe concrete and the punched thin steel plate form the steel skeleton of the wall plate, so that the bending resistance, the shearing resistance and the out-of-plane bearing capacity of the wall plate are increased, and the seismic performance of the wall plate is improved.
(7) The novel building material foamed concrete is adopted, a large number of closed hole structures are arranged in the foamed concrete, the lightweight and heat preservation and insulation of the building filling material are realized, the novel light heat preservation material is a novel light heat preservation material, the weight of the component is obviously reduced, and the transportation and the installation are convenient. Meanwhile, the foamed concrete also has the advantages of sound insulation, fire resistance, water resistance, environmental protection, good durability and the like, and is a novel building material which is rapidly developed and popularized.
(8) The traditional anti-seismic wall is mostly a cast-in-place component, the combined wall is an assembled component, the combined wall is prefabricated in a factory, the pouring quality of the wallboard is guaranteed, the combined wall is directly installed on a building site, resources are effectively saved, energy consumption is reduced, and meanwhile, the construction time is greatly shortened. The assembled structure form can rapidly and effectively improve the anti-seismic performance of the house, has great promotion effect on the realization of housing industrialization and urbanization construction, is a research and development result of a novel combined structure agricultural house technology, and has an important effect on promoting the improvement of the traditional agricultural house structure technology.
Description of the drawings:
FIG. 1 is a partial schematic view of an assembled truss type light steel frame-punched sheet steel-foamed concrete composite wall;
FIG. 2 is a partial schematic view of a steel frame of an assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall;
fig. 3 is a diagram of the assembly effect of the assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall.
In the figure: 1-a steel pipe concrete frame column; 2-a steel pipe concrete frame beam; 3-punching thin steel plate; 4-steel pipe concrete truss ribs; 5-foaming concrete; 6-connecting the end plate; 7-connecting bolt.
The specific implementation mode is as follows:
the assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall is illustrated in the attached drawings 1-3, and the manufacturing method of the assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall is as follows:
the first step is as follows: pouring concrete in the steel pipe and curing to form a steel pipe concrete frame column, a steel pipe concrete frame beam and a wall steel pipe concrete truss rib of the wallboard; processing bolt holes corresponding to the diameters of the connecting bolts on the connecting end plates, and then respectively welding the connecting end plates to the top and the bottom of each steel pipe concrete frame column; and welding the steel pipe concrete frame column and the steel pipe concrete frame beam to form the light steel frame of the combined wall.
The second step is that: and welding a punched thin steel plate in the combined wall light steel frame, then arranging steel pipe concrete truss ribs on two sides of the punched thin steel plate in a crossed manner, and welding and fixing two ends of each rib on the combined wall light steel frame to form the combined wall steel frame.
The third step: and manufacturing a wallboard pouring template, configuring foamed concrete, pouring the wallboard foamed concrete, and curing to form the assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall. When the combined wall is assembled, the combined wall is installed and connected with an external structure through a connecting bolt.
The above is a typical embodiment of the present invention, but the implementation of the present invention is not limited thereto. The dimensions of the structures and the selection of the materials listed in the invention can be selected according to actual needs, and are not listed.

Claims (8)

1. An assembled truss type light steel frame-punched sheet steel-foamed concrete combined wall is characterized in that: the steel pipe concrete truss rib steel pipe concrete frame comprises a steel pipe concrete frame column (1), a steel pipe concrete frame beam (2), a punching thin steel plate (3), a steel pipe concrete truss rib (4), foamed concrete (5), a connecting end plate (6) and a connecting bolt (7);
the punching thin steel plate (3) is a steel plate with a hole punched by a punch through a die on a steel plate with the plate thickness not more than 5mm, the hole center distance is not less than 50mm, and the punching area is not less than 1/2 of the area of the punching thin steel plate (3); respectively welding and connecting end plates (6) at the positions of the top and the base of the steel pipe concrete frame column (1), and prefabricating bolt holes on the connecting end plates (6); the steel tube concrete frame column (1) is welded with the steel tube concrete frame beam (2) to form a combined wall light steel frame, a punching thin steel plate (3) is welded inside the frame, then steel tube concrete truss ribs (4) are arranged on two sides of the punching thin steel plate, two ends of each steel tube concrete truss rib (4) are welded and fixed with the combined wall light steel frame, and thus the combined wall steel frame is formed; the wall plate foamed concrete (5) is poured by the supporting die, and an assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall is formed after curing; during assembly, the combined wall is connected with the external frame structure beam through the connecting bolt (7).
2. The fabricated truss type light steel frame-punched thin steel plate-foamed concrete composite wall as claimed in claim 1, wherein: the steel pipe concrete frame column (1) and the steel pipe concrete frame beam (2) are rectangular steel pipes, the wall thickness of each steel pipe is not more than 8mm, the side length of the section of each steel pipe is not less than 50mm, and concrete is filled in the steel pipes.
3. The fabricated truss type light steel frame-punched thin steel plate-foamed concrete composite wall as claimed in claim 1, wherein: the punching thin steel plate (3) is a steel plate with a circular hole or a rectangular hole punched by a die, and the punching thin steel plate (3) is arranged in the middle of the frame of the light steel frame of the wallboard and is poured in the middle of the foamed concrete (5) at the same time.
4. The fabricated truss type light steel frame-punched thin steel plate-foamed concrete composite wall as claimed in claim 1, wherein: the steel pipe concrete truss ribs (4) are formed by filling rectangular steel pipes with concrete, the wall thickness of the steel pipes is not more than 5mm, and the steel pipe concrete truss ribs (4) which are arranged on two sides of the punching thin steel plate (3) in a crossed mode form a wallboard truss stress framework together with a wall steel pipe concrete frame; when the foamed concrete (5) is poured, the steel pipe concrete truss ribs (4) are partially or completely poured in the wall board.
5. The fabricated truss type light steel frame-punched thin steel plate-foamed concrete composite wall as claimed in claim 1, wherein: the pouring thickness of the foamed concrete (5) is not less than 60 mm.
6. The fabricated truss type light steel frame-punched thin steel plate-foamed concrete composite wall as claimed in claim 1, wherein: the thickness of the steel plate adopted by the connecting end plate (6) is not less than 6mm, and bolt holes corresponding to the aperture of the connecting bolts (7) are machined in the connecting end plate.
7. The fabricated truss type light steel frame-punched thin steel plate-foamed concrete composite wall as claimed in claim 1, wherein: the connecting bolts (7) are not less than M16, the strength is not less than 8.8 grade, and when the combined wall is installed, the number of the connecting bolts (7) on each connecting end plate (6) is not less than 4.
8. The fabricated truss type light steel frame-punched steel sheet-foamed concrete composite wall as claimed in any one of claims 1 to 7, wherein: the manufacturing method comprises the following steps:
the first step is as follows: pouring concrete in the steel pipe and curing to form a steel pipe concrete frame column, a steel pipe concrete frame beam and a steel pipe concrete truss rib of the wallboard; processing bolt holes corresponding to the diameters of the connecting bolts on the connecting end plates, and then respectively welding the connecting end plates to the top and the bottom of each steel pipe concrete frame column; welding the steel pipe concrete frame column and the steel pipe concrete frame beam to form a light steel frame of the combined wall;
the second step is that: welding a punched thin steel plate in the combined wall light steel frame, then arranging steel pipe concrete truss ribs on two sides of the punched thin steel plate in a crossed manner, and welding and fixing two ends of each rib on the combined wall light steel frame to form a combined wall steel frame;
the third step: manufacturing a wallboard pouring template, configuring foamed concrete, pouring the wallboard foamed concrete, and curing to form the assembled truss type light steel frame-punched thin steel plate-foamed concrete combined wall; when the combined wall is assembled, the combined wall and the external frame structure beam are installed and connected through the connecting bolts.
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CN110616822A (en) * 2019-09-27 2019-12-27 中国地质大学(北京) Combined wall with L-shaped section of surface layer of light steel-steel cable-small-diameter material-composite board and manufacturing method thereof

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