CN108301533B - Assembled truss type light steel frame-reinforcing mesh-concrete combined wall - Google Patents

Assembled truss type light steel frame-reinforcing mesh-concrete combined wall Download PDF

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Publication number
CN108301533B
CN108301533B CN201810223339.6A CN201810223339A CN108301533B CN 108301533 B CN108301533 B CN 108301533B CN 201810223339 A CN201810223339 A CN 201810223339A CN 108301533 B CN108301533 B CN 108301533B
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concrete
steel
combined
frame
steel pipe
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CN108301533A (en
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曹万林
王如伟
殷飞
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
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/40Separate connecting elements

Abstract

The invention relates to an assembled truss type light steel frame-reinforcing mesh-concrete combined wall and a manufacturing method thereof. 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 together to form a wall steel tube concrete truss stress system, and form a combined wall steel skeleton together with the reinforcing mesh, so that the integrity of the wall plate is improved, the concrete is poured by formwork, the assembled truss type light steel frame-reinforcing mesh-concrete combined wall is formed after curing, and the combined wall is assembled to an external structure only through connecting bolts. The assembled combined wall has good 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, the assembled combined wall is suitable for being widely popularized and applied in low-multi-layer rural houses in villages and small towns, and has an important effect on promoting the improvement of the traditional rural house structure technology.

Description

Assembled truss type light steel frame-reinforcing mesh-concrete combined wall
The technical field is as follows:
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-reinforcing mesh-concrete combined wall and a manufacturing method thereof.
Background art:
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.
The invention content is as follows:
the invention provides an assembled truss type light steel frame-reinforcing mesh-concrete combined wall, provides a method for manufacturing an assembled wall body with good bearing capacity and shock resistance for low-rise integrated houses and assembled houses, 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 problems that the structure of the existing rural houses lacks shock resistance measures and the shock resistance is weak. 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-reinforcing mesh-concrete combined wall comprises a steel pipe concrete frame column (1), a steel pipe concrete frame beam (2), a reinforcing mesh (3), a steel pipe concrete truss rib (4), concrete (5), a connecting end plate (6) and a connecting bolt (7); 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); welding the steel pipe concrete frame columns (1) with the steel pipe concrete frame beams (2) to form a combined wall light steel frame, welding a reinforcing mesh (3) inside the frame, then arranging steel pipe concrete truss ribs (4) on two sides of the reinforcing mesh in a crossed manner, and welding and fixing two ends of each steel pipe concrete truss rib (4) with the combined wall light steel frame to form a combined wall steel frame; erecting a formwork and pouring wallboard concrete (5), and curing to form an assembled truss type light steel framework-reinforcing mesh-concrete combined wall; during assembly, the combined wall is connected with an external structure through a connecting bolt (7).
The assembled truss type light steel frame-reinforcing mesh-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 diameter of the steel bar used by the steel bar mesh (3) is not less than 4mm, the spacing of the steel bars is not less than 50mm, the steel bars are vertically arranged and fixed to form an orthogonal steel bar mesh, and the steel bar mesh (3) is singly laid in the combined wall and is simultaneously poured in the middle of the concrete (5). The reinforcing mesh (3) can be formed by welding reinforcing steel bars in a factory through a spot welding machine, the welding program is controlled by a computer, the welding meshes are uniform, the welding quality is good, and the mechanical properties of the reinforcing steel bars before and after welding are unchanged.
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 concrete (5) is poured, the steel pipe concrete truss ribs (4) are partially or completely poured in the wall boards. 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 casting thickness of the concrete (5) is 40-100 mm, and the concrete strength grade is C30-C60; the concrete (5) is common concrete, recycled concrete with different mixing amounts of recycled coarse aggregates or high-performance concrete. The recycled concrete is prepared from concrete aggregate obtained by crushing, cleaning and grading the waste concrete blocks after the old building is dismantled, the recycling and reduction treatment principle of the waste concrete is realized by adopting the recycled concrete, the effects of protecting the environment and saving resources can be realized, the social benefit is remarkable, and the national sustainable development is promoted. According to engineering requirements, high-performance concrete with the properties of cracking resistance, corrosion resistance and the like can be prepared.
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 framework-reinforcing mesh-concrete combined wall has the following advantages:
(1) the assembled truss type light steel frame-reinforcing mesh-concrete combined wall provided by the invention is used as a stressed member in the structure, has better bearing capacity and earthquake resistance, is suitable for being widely popularized in low multi-story buildings with earthquake-resistant fortification requirements, particularly low multi-story rural houses in villages, and promotes the completion of the development target of new rural construction.
(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 steel pipe concrete and the reinforcing mesh form the design of 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 anti-seismic performance of the wall plate is improved.
(6) The wallboard concrete layer is thin in thickness and light in dead weight, and transportation and assembly on a construction site are facilitated. Meanwhile, the steel tube concrete and the wallboard concrete adopt green and environment-friendly recycled concrete, which is beneficial to promoting the national sustainable development target.
(7) 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 can quickly and effectively improve the earthquake resistance of the house, and has great promotion effect on realizing housing industrialization and urbanization construction. Is a research and development result of a novel combined structure agricultural house technology, and has an important role in 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-reinforcing mesh-concrete composite wall;
fig. 2 is a schematic view of a steel framework of an assembled truss type light steel framework-steel bar mesh-concrete combined wall;
fig. 3 is a view showing the assembly effect of the assembled truss-type light steel framework-reinforcing mesh-concrete composite wall.
In the figure: 1-a steel pipe concrete frame column; 2-a steel pipe concrete frame beam; 3-reinforcing mesh; 4-steel pipe concrete truss ribs; 5-concrete; 6-connecting the end plate; 7-connecting bolt.
The specific implementation mode is as follows:
the invention discloses an assembled truss type light steel frame-reinforcing mesh-concrete combined wall, which is manufactured by the following steps with reference to the attached drawings 1-3:
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 steel bar mesh in the combined wall steel pipe concrete frame, arranging steel pipe concrete truss ribs on two sides of the steel bar mesh 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 concrete, pouring the wallboard concrete, and curing to form the assembled truss type light steel framework-reinforcing mesh-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-reinforcing mesh-concrete combined wall is characterized in that: the steel pipe concrete truss rib concrete frame comprises steel pipe concrete frame columns (1), steel pipe concrete frame beams (2), a reinforcing mesh (3), steel pipe concrete truss ribs (4), concrete (5), connecting end plates (6) and connecting bolts (7);
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); welding the steel pipe concrete frame columns (1) with the steel pipe concrete frame beams (2) to form a combined wall light steel frame, welding a reinforcing mesh (3) inside the frame, then arranging steel pipe concrete truss ribs (4) on two sides of the reinforcing mesh in a crossed manner, and welding and fixing two ends of each steel pipe concrete truss rib (4) with the combined wall light steel frame to form a combined wall steel frame; erecting a formwork and pouring wallboard concrete (5), and curing to form an assembled truss type light steel framework-reinforcing mesh-concrete combined wall; 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 framework-mesh reinforcement-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 framework-mesh reinforcement-concrete composite wall as claimed in claim 1, wherein: the diameter of the steel bar used by the steel bar mesh (3) is not less than 4mm, the spacing between the steel bars is not less than 50mm, the steel bars are vertically arranged and fixed to form an orthogonal steel bar mesh; the reinforcing mesh (3) is paved in the combined wall in a single piece and is poured in the middle of the concrete (5).
4. The fabricated truss-type light steel framework-mesh reinforcement-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 reinforcing mesh (3) in a crossed mode and the wall body steel pipe concrete frame form a wallboard truss stress framework; when the concrete (5) is poured, the steel pipe concrete truss ribs (4) are partially or completely poured in the wall boards.
5. The fabricated truss-type light steel framework-mesh reinforcement-concrete composite wall as claimed in claim 1, wherein: the casting thickness of the concrete (5) is 40-100 mm, and the concrete strength grade is C30-C60.
6. The fabricated truss-type light steel framework-mesh reinforcement-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 framework-mesh reinforcement-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 framework-mesh reinforcement-concrete composite wall as claimed in any one of claims 1 to 7, which is fabricated by the following method:
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 reinforcing mesh in the combined wall light steel frame, then arranging steel pipe concrete truss ribs on two sides of the reinforcing mesh 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 concrete, pouring the wallboard concrete, and curing to form the assembled truss type light steel framework-reinforcing mesh-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.
CN201810223339.6A 2018-03-19 2018-03-19 Assembled truss type light steel frame-reinforcing mesh-concrete combined wall Active CN108301533B (en)

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US4472919A (en) * 1982-05-19 1984-09-25 Con-Tex Elements, Inc. Prefabricated building panel
JPH10176378A (en) * 1996-12-18 1998-06-30 Maeda Corp Installation structure of earthquakeproofing wall
CN1995579B (en) * 2006-12-29 2011-09-07 北京工业大学 Steel pipe concrete frame-steel truss-concrete combined shear wall and its manufacture method
CN101457560B (en) * 2008-12-19 2011-03-16 北京工业大学 Section steel concrete- punched steel plate-concrete combined shear wall and method for producing the same
CN104746773A (en) * 2015-03-27 2015-07-01 海南大学 Prefabricated assembled type self-resetting shear wall structure
CN105201103B (en) * 2015-10-09 2018-07-31 北京工业大学 A kind of assembled band frame ribbing steel plate shear force wall
CN106869367A (en) * 2017-03-29 2017-06-20 天津大学 A kind of concrete filled steel tube organ timbering shear wall with type steel support and preparation method thereof
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