CN208137186U - Assembling truss type light steel frame-punching sheet metal-Combined concrete wall - Google Patents

Abstract

The utility model relates to an assembled truss type light steel frame-perforated thin steel plate-concrete composite wall. In the utility model, the concrete-filled steel tube frame column, the concrete-filled steel tube frame beam and the concrete-filled steel tube truss rib of the wall form a wall plate concrete-filled steel tube truss stress system, and together with the perforated thin steel plate form a composite wall steel skeleton, which improves the strength of the wall plate. Integrality, formwork pouring concrete, after curing, an assembled truss-type light steel frame-perforated thin steel plate-concrete composite wall is formed, and the composite wall only needs to be assembled to the external structure through connecting bolts. The assembled composite wall in the utility model has better bending resistance, shear bearing capacity and out-of-plane rigidity, and good seismic performance. At the same time, the wall panels are produced in factories and assembled on site, which effectively resolves common quality problems caused by on-site construction. The efficiency of engineering construction is greatly improved, and the amount of engineering labor is reduced, which is suitable for widespread application in low-storey farm house structures in villages and towns.

Description

Prefabricated truss-type light steel frame-perforated thin steel plate-concrete composite wall

Technical field:

The utility model belongs to the technical field of fabrication of assembled composite walls in building structure engineering, in particular to an assembled truss-type light steel frame-perforated thin steel plate-concrete composite wall and a method thereof.

Background technique:

At present, my country is in the period of new-type urbanization and new rural construction booming. The large-scale and wide-ranging new rural construction and the urgent goal of new rural transformation have made simple integrated houses and low-rise prefabricated houses begin to be used in low-rise farm houses. developed in the structure. At this stage, integrated houses and prefabricated houses mostly use beam-column frames composed of steel structural members or steel-concrete structural members as the main force-bearing system of the house structure. Excellent features such as flexibility and short construction period. But at the same time, as the main components of the house structure, the external wall panels and infill wall panels can only be used as the enclosure components of the house and cannot participate in the force. Therefore, there are problems of low bearing capacity, poor ductility, and frequent brittle failure of the house structure. The housing as a whole also has the problems of poor stability and poor earthquake resistance, which greatly restricts the application of integrated houses and prefabricated houses in residential buildings.

The construction volume of villages and towns in my country accounts for 60% of the total construction volume of the country, and most of the farm houses are located in anti-seismic fortification areas. How to rationally design and use walls to improve the bearing capacity of low-rise integrated houses and prefabricated houses and enhance their earthquake resistance without affecting their The advantages of flexible space layout, the application of walls with bearing capacity and earthquake resistance to low-storey buildings, especially the low-storey farmhouse structures in villages and towns during the new rural construction period, is the key to promoting my country's new urbanization and new rural construction The essential.

Therefore, it is of great practical significance and socio-economic value to develop an economical, practical, low-cost, and easy-to-construct prefabricated composite wall suitable for low-story buildings, especially low-story farmhouse structures in villages and towns.

Invention content:

The utility model provides an assembled truss type light steel frame-perforated thin steel plate-concrete composite wall, which provides an assembled wall with better bearing capacity and earthquake resistance for low-level multi-storey integrated houses and assembled houses. This approach is suitable for low-storey buildings with seismic fortification requirements, especially low-storey rural houses in villages and towns, so as to solve the current situation of lack of earthquake-resistant measures and weak earthquake-resistant capacity in rural house structures. At the same time, the on-site assembly and construction of the components are simple, which can promote the completion of the development goals of new rural construction.

In order to achieve the above object, the utility model adopts the following technical solutions:

A prefabricated truss-type light steel frame-perforated thin steel plate-concrete composite wall, including steel tube concrete frame columns (1), steel tube concrete frame beams (2), punched thin steel plates (3), steel tube concrete truss ribs (4 ), concrete (5), connecting end plates (6) and connecting bolts (7); the punched thin steel plate (3) is a steel plate that punches out holes through a punch through a die on a steel plate with a thickness of no 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 punched thin steel plate (3); the end plates (6) are respectively welded at the top and foot of the steel tube concrete frame column (1), Prefabricated bolt holes on the connecting end plate (6); the steel tube concrete frame column (1) is welded with the steel tube concrete frame beam (2) to form a light steel frame frame of the composite wall, and the punched thin steel plate (3) is welded inside the frame, and then punched Steel tube concrete truss ribs (4) are cross-arranged on both sides of the hole thin steel plate, and the two ends of the steel tube concrete truss ribs (4) are welded and fixed to the frame frame of the light steel frame of the composite wall. So far, the steel skeleton of the composite wall is formed; ), forming a prefabricated truss-type light steel frame-perforated thin steel plate-concrete composite wall after curing; during assembly, the composite wall and the external structure are connected by connecting bolts (7).

The assembled truss type light steel frame-punched thin steel plate-concrete composite wall is characterized in that:

The concrete-filled steel pipe frame column (1) and the concrete-filled steel pipe frame beam (2) adopt square or rectangular steel pipes, the wall thickness of the steel pipes is not greater than 8mm, the side length of the steel pipe section is not less than 50mm, and the pipes are filled with concrete. The steel tube concrete has a high shear bearing capacity, and the steel tube concrete frame column (1) and the steel tube concrete frame beam (2) are welded to form a light steel frame frame of the composite wall, which significantly increases the shear strength of the wall panel.

The punched thin steel plate (3) is a steel plate with circular holes, square holes or rectangular holes punched out by a die through a punching machine. The punched thin steel plate (3) is arranged in the middle part of the light steel frame frame and poured on the concrete (5 ) middle. The perforated thin steel plate (3) is welded and fixed with the steel pipe concrete frame of the wall panel after positioning, and poured into the concrete to play the role of reinforcement, but it is easier to construct than the configuration of steel bars, with strong integrity, uniform mesh, and easy processing , low cost and other characteristics, improve the out-of-plane rigidity of the wallboard, and improve the seismic capacity of the wallboard.

The concrete-filled steel pipe truss ribs (4) are made of square or rectangular steel pipes filled with concrete, and the wall thickness of the steel pipes is not greater than 5mm. The frame of the light steel frame of the body together constitutes the stressed skeleton of the wall panel truss; when the concrete (5) is poured, part or all of the steel tube concrete truss rib (4) is poured in the wall panel. The setting of the steel tube concrete truss rib (4) increases the bending resistance, shear resistance and out-of-plane bearing capacity of the wall panel, and improves the seismic level of the wall panel.

The pouring thickness of the concrete (5) is 40mm-100mm, and the concrete strength grade is C30-C60; the concrete (5) is ordinary concrete, recycled concrete or high-performance concrete with different recycled coarse aggregate content. Recycled concrete is prepared from the concrete aggregate obtained after crushing, cleaning and grading waste concrete blocks after demolition of old buildings. The use of recycled concrete realizes the principle of resource utilization and reduction of waste concrete, which can play a role The role of protecting the environment and saving resources has significant social benefits and promotes the sustainable development of the country. According to engineering needs, high-performance concrete with properties such as crack resistance and corrosion resistance can be configured.

The thickness of the steel plate used for the connecting end plate (6) is not less than 6 mm, and the connecting end plate is processed with bolt holes corresponding to the apertures of the connecting bolts (7). When the connecting end plate (6) is welded to the steel pipe concrete frame column (1), the connection can be strengthened by welding stiffeners.

The connecting bolts (7) are not less than M16, and the strength is not less than grade 8.8. When the composite wall is installed, there are not less than four connecting bolts (7) on each connecting end plate (6).

Compared with the prior art, the assembled truss type light steel frame-perforated thin steel plate-concrete composite wall of the utility model has the following advantages:

(1) Most of the traditional prefabricated walls are external wall panels or large module filling walls, which can only be used as enclosure components of the house and cannot participate in the force. Therefore, the overall stability of the house structure is poor, the bearing capacity is low, the ductility is poor, and the earthquake resistance Weak and frequently brittle failures, the assembled truss-type light steel frame-perforated thin steel plate-concrete composite wall provided by the utility model acts as a stressed member in the structure, has better bearing capacity and earthquake resistance, and is suitable for It is widely promoted in low-storey buildings with earthquake-resistant fortification requirements, especially low-storey farm houses in villages and towns, so as to promote the completion of the development goals of new rural construction.

(2) The composite wall is selectively arranged in the column network as an anti-seismic unit, and is arranged in the weak position of the structure of the low-rise building, thereby increasing the lateral stiffness and anti-seismic capacity of the building structure without affecting the building bay and layout.

(3) The CFST frame columns, CFST frame beams and CFST truss ribs together form a CFST truss stress system in the wall panel, which changes the damage pattern of the wall and can effectively improve the bearing capacity and ductility of the wall.

(4) The design of steel tube concrete frame beams and columns forming the light steel frame frame of the wall improves the integrity of the wall panels and makes up for the corners that are prone to occur during hoisting, transportation and construction at the position of the frame of the concrete thin wall panel components , Fragmentation affects the use of thin concrete wall panels, and improves the quality of fabricated wall panels.

(5) The perforated thin steel plate plays the role of reinforcement in the concrete wall panel, but it is easier to construct than the configuration steel bar, easy to locate, has the characteristics of strong integrity, uniform mesh, easy processing, and low cost, which improves the wall panel. The out-of-plane rigidity of the board improves the seismic capacity of the wall board.

(6) The design of the steel skeleton of the wall panel formed by the steel tube concrete and the perforated thin steel plate increases the bending resistance, shear resistance and out-of-plane bearing capacity of the wall panel, improves the seismic performance of the wall panel, and extends the utility model to the structure of farm buildings In the face of large-scale and wide-area low-storey farm house renovation, the seismic performance of the farm house can be quickly and effectively improved.

(7) The thickness of the concrete layer of the wall panel is relatively thin, and the weight is light, which is conducive to transportation and assembly on the construction site. At the same time, green and environmentally friendly recycled concrete can be used for steel pipe concrete and wall panel concrete, which is conducive to promoting the country's sustainable development goals.

(8) Traditional anti-seismic walls are mostly cast-in-place components. The composite wall of the utility model is an assembled component, which is prefabricated in the factory, and the quality of wall panel pouring is guaranteed. It can be directly installed on the construction site, effectively saving resources, reducing energy consumption, and greatly Construction time is shortened. The prefabricated structural form can quickly and effectively improve the seismic performance of the house, which greatly promotes the realization of housing industrialization and urbanization. Improvements in technology play an important role.

Description of drawings:

Fig. 1 is a partial schematic diagram of a prefabricated truss type light steel frame-perforated thin steel plate-concrete composite wall;

Fig. 2 is a partial schematic diagram of the prefabricated truss type light steel frame-perforated thin steel plate-concrete composite wall steel skeleton;

Figure 3 is an assembly effect diagram of the assembled truss type light steel frame-perforated thin steel plate-concrete composite wall.

In the figure: 1-concrete-filled steel pipe frame column; 2-concrete-filled steel pipe frame beam; 3-punched thin steel plate; 4-concrete-filled steel pipe truss rib; 5-concrete; 6-connecting end plate; 7-connecting bolt.

Detailed ways:

A prefabricated truss-type light steel frame-perforated thin steel plate-concrete composite wall, including steel tube concrete frame columns (1), steel tube concrete frame beams (2), punched thin steel plates (3), steel tube concrete truss ribs (4 ), concrete (5), connecting end plates (6) and connecting bolts (7); the punched thin steel plate (3) is a steel plate that punches out holes through a punch through a die on a steel plate with a thickness of no 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 punched thin steel plate (3); the end plates (6) are respectively welded at the top and foot of the steel tube concrete frame column (1), Prefabricated bolt holes on the connecting end plate (6); the steel tube concrete frame column (1) is welded with the steel tube concrete frame beam (2) to form a light steel frame frame of the composite wall, and the punched thin steel plate (3) is welded inside the frame, and then punched Steel tube concrete truss ribs (4) are cross-arranged on both sides of the hole thin steel plate, and the two ends of the steel tube concrete truss ribs (4) are welded and fixed to the frame frame of the light steel frame of the composite wall. So far, the steel skeleton of the composite wall is formed; ), forming a prefabricated truss-type light steel frame-perforated thin steel plate-concrete composite wall after curing; during assembly, the composite wall and the external structure are connected by connecting bolts (7).

The assembled truss type light steel frame-punched thin steel plate-concrete composite wall is characterized in that:

The concrete-filled steel pipe frame column (1) and the concrete-filled steel pipe frame beam (2) adopt square or rectangular steel pipes, the wall thickness of the steel pipes is not greater than 8mm, the side length of the steel pipe section is not less than 50mm, and the pipes are filled with concrete. The steel tube concrete has a high shear bearing capacity, and the steel tube concrete frame column (1) and the steel tube concrete frame beam (2) are welded to form a light steel frame frame of the composite wall, which significantly increases the shear strength of the wall panel.

The punched thin steel plate (3) is a steel plate with circular holes, square holes or rectangular holes punched out by a die through a punching machine. The punched thin steel plate (3) is arranged in the middle part of the light steel frame frame and poured on the concrete (5 ) middle. The perforated thin steel plate (3) is welded and fixed with the steel pipe concrete frame of the wall panel after positioning, and poured into the concrete to play the role of reinforcement, but it is easier to construct than the configuration of steel bars, with strong integrity, uniform mesh, and easy processing , low cost and other characteristics, improve the out-of-plane rigidity of the wallboard, and improve the seismic capacity of the wallboard.

The concrete-filled steel pipe truss ribs (4) are made of square or rectangular steel pipes filled with concrete, and the wall thickness of the steel pipes is not greater than 5mm. The frame of the light steel frame of the body together constitutes the stressed skeleton of the wall panel truss; when the concrete (5) is poured, part or all of the steel tube concrete truss rib (4) is poured in the wall panel. The setting of the steel tube concrete truss rib (4) increases the bending resistance, shear resistance and out-of-plane bearing capacity of the wall panel, and improves the seismic level of the wall panel.

The pouring thickness of the concrete (5) is 40mm-100mm, and the concrete strength grade is C30-C60; the concrete (5) is ordinary concrete, recycled concrete or high-performance concrete with different recycled coarse aggregate content. Recycled concrete is prepared from the concrete aggregate obtained after crushing, cleaning and grading waste concrete blocks after demolition of old buildings. The use of recycled concrete realizes the principle of resource utilization and reduction of waste concrete, which can play a role The role of protecting the environment and saving resources has significant social benefits and promotes the sustainable development of the country. According to engineering needs, high-performance concrete with properties such as crack resistance and corrosion resistance can be configured.

The thickness of the steel plate used for the connecting end plate (6) is not less than 6 mm, and the connecting end plate is processed with bolt holes corresponding to the apertures of the connecting bolts (7). When the connecting end plate (6) is welded to the steel pipe concrete frame column (1), the connection can be strengthened by welding stiffeners.

The connecting bolts (7) are not less than M16, and the strength is not less than grade 8.8. When the composite wall is installed, there are not less than four connecting bolts (7) on each connecting end plate (6).

The assembled truss type light steel frame-perforated thin steel plate-concrete composite wall in the invention, combined with accompanying drawings 1 to 3, illustrates the manufacturing method of the utility model as follows:

Step 1: Concrete is poured into the steel pipe and cured to form the CFST frame column of the wall panel, the CFST frame beam and the CFST truss rib of the wall; bolt holes corresponding to the diameter of the connecting bolt are processed on the connecting end plate, and then the connecting The end plates are respectively welded to the top and bottom of each concrete-filled steel tube frame column; the steel tube concrete frame column and the steel tube concrete frame beam are welded to form a light steel frame frame for the composite wall.

Step 2: Weld the perforated thin steel plate within the light steel frame frame of the composite wall, and then arrange the steel pipe concrete truss ribs crosswise on both sides of the punched thin steel plate, and weld and fix the two ends of the ribs on the light steel frame frame of the composite wall. So far, Form the composite wall steel skeleton.

Step 3: Make wall panel pouring formwork, configure concrete, pour wall panel concrete, and form an assembled truss-type light steel frame-perforated thin steel plate-concrete composite wall after curing. When the combination wall is assembled, it is installed and connected with the external structure through connecting bolts.

The above is a typical implementation case of the utility model, but the implementation of the utility model is not limited thereto. The selection of various structural dimensions and materials listed in the utility model can be selected according to actual needs, and will not be listed one by one here.

Claims (7)

1. Prefabricated truss-type light steel frame-perforated thin steel plate-concrete composite wall, characterized in that it includes steel tube concrete frame column (1), steel tube concrete frame beam (2), punched thin steel plate (3), steel tube concrete Truss ribs (4), concrete (5), connecting end plates (6) and connecting bolts (7); The punched thin steel plate (3) is a steel plate that punches out holes through a punch through a die on a steel plate with a thickness of no more than 5mm. 1/2 of the area; The steel pipe concrete frame column (1) is welded to connect the end plate (6) at the column top and the column foot respectively, and the bolt holes are prefabricated on the connection end plate (6); the steel pipe concrete frame column (1) and the steel pipe concrete frame beam (2) Welding to form the light steel frame frame of the composite wall, the punched thin steel plate (3) is welded inside the frame, and then the steel tube concrete truss ribs (4) are cross-arranged on both sides of the punched thin steel plate, and the two ends of the steel tube concrete truss ribs (4) are connected to the combined The frame of the light steel frame of the wall is welded and fixed, so far, the steel skeleton of the composite wall is formed; the wall board concrete (5) is poured in formwork, and after curing, an assembled truss type light steel frame-perforated thin steel plate-concrete composite wall is formed; during assembly , the composite wall is connected with the external structure through connecting bolts (7). 2. The assembled truss type light steel frame-perforated thin steel plate-concrete composite wall according to claim 1, characterized in that: the steel pipe concrete frame column (1) and steel pipe concrete frame beam (2) adopt square Or rectangular steel pipe, the wall thickness of the steel pipe is not more than 8mm, the side length of the steel pipe section is not less than 50mm, and the pipe is filled with concrete. 3. The assembled truss type light steel frame-punched thin steel plate-concrete composite wall according to claim 1, characterized in that: the punched thin steel plate (3) is punched out of circular holes, square holes The steel plate with holes or rectangular holes, the punched thin steel plate (3) is arranged in the middle part of the light steel frame frame of the wallboard, and poured in the middle part of the concrete (5) at the same time. 4. The assembled truss type light steel frame-perforated thin steel plate-concrete composite wall according to claim 1, characterized in that: the steel pipe concrete truss rib (4) is made of square or rectangular steel pipes filled with concrete, The steel pipe wall thickness is not greater than 5mm, and the steel pipe concrete truss ribs (4) arranged crosswise on both sides of the punched thin steel plate (3) together with the wall steel pipe concrete frame form the wall panel truss stress skeleton; when the concrete (5) is poured , the steel pipe concrete truss rib (4) is partly or completely poured in the wall panel. 5. The assembled truss type light steel frame-perforated thin steel plate-concrete composite wall according to claim 1, characterized in that: the thickness of the concrete (5) poured is 40mm-100mm, and the concrete strength grade is C30-C60 . 6. The assembled truss type light steel frame-punched thin steel plate-concrete composite wall according to claim 1, characterized in that: the thickness of the steel plate used in the connecting end plate (6) is not less than 6mm, and the connecting end plate Bolt holes corresponding to the apertures of the connecting bolts (7) are processed on the top. 7. The assembled truss type light steel frame-punched thin steel plate-concrete composite wall according to claim 1, characterized in that: the connecting bolts (7) are not less than M16, the strength is not less than 8.8, and the composite wall During installation, there are no less than four connecting bolts (7) on each connecting end plate (6).