CN110670762B - Light steel-steel cable-small diameter timber-composite board surface layer in-line combined wall and method - Google Patents

Abstract

The invention discloses a light steel frame-steel cable support-small-diameter material jointed board-composite board surface layer straight section combined wall and a manufacturing method thereof, and belongs to the technical field of energy conservation and earthquake resistance of buildings. The light steel column in the light steel frame is a vertical bearing member, the beam column adopts C-shaped steel, U-shaped steel or rectangular steel pipes, and beam column joints are welded. The prestress steel cable struts are obliquely and crosswise arranged and form a prestress flexible support truss structure of a light steel frame with the light steel frame; the small-diameter material jointed boards play a role of enclosure and also serve as a dismantling-free template, are connected with the light steel frame to form a cavity, and the cavity is filled with expanded polyphenyl granule light concrete to form an insulating layer; the structure dead weight is lightened, the advantage combination of light steel and small-diameter wood is realized, the wall body has the traditional building style, and the earthquake resistance is improved. In order to ensure the smoothness, firmness and attractiveness of the wall, the composite surface plate is adhered to the outer side of the small-diameter material jointed board to form the light steel frame-steel cable support-small-diameter material jointed board-composite board surface layer linear section combined wall.

Description

Light steel-steel cable-small diameter timber-composite board surface layer in-line combined wall and method

Technical field

The invention relates to a light steel frame-steel cable brace-small-diameter timber panel-composite plate surface layer straight-section combined wall and its method, and belongs to the field of building energy-saving and earthquake-resistant technology.

Background technique

At present, our country is facing the process of urbanization. Residential construction is growing rapidly, the energy consumption it generates is increasing, and carbon dioxide emissions are also rising sharply. However, the existing residential structural system cannot satisfy the occupants during its "life cycle". changes in functional usage and health and comfort needs. Combined with my country's climate characteristics and residents' living habits, we develop earthquake-resistant and energy-saving buildings that are light in weight, strong in wind resistance and earthquake resistance, easy to construct, short in construction period, less dependent on skilled workers, low in overall cost, and meet industrialization and sustainable development. The integrated structure meets the major needs of the country's residential building development.

In recent years, my country's steel production capacity has been overcapacity, and it is imperative to upgrade the structure of the construction industry and use steel as a building material for light steel buildings. Light steel composite residences have good energy-saving and thermal insulation properties, high residential development efficiency, and strong earthquake resistance. The vigorous promotion of light steel composite residences is conducive to the development of the construction industry in a green and standardized direction, reducing my country's building energy consumption, improving construction quality and It also helps to digest the large backlog of steel products and plays a positive role in promoting the transformation and promotion of urban housing in my country.

In response to the "low technology, high energy consumption" problems existing in urbanized housing, the development of low-energy consumption assembled earthquake-resistant and energy-saving integrated structures has received great attention from the country and is generally concerned by society. Steel-wood structures have become a hot topic of research. The so-called steel-wood structure refers to the combination of steel and wood in some way. Steel has the characteristics of high strength, while wood has ecological characteristics. The steel-wood structure allows the use of wood to achieve a relative balance and will not lead to a large amount of abuse of wood. The structure is easy to assemble and disassemble. It can improve the recycling rate of wood and steel in building materials and reduce the waste of building materials. It has the advantages of good durability, strong earthquake resistance, energy saving and environmental protection. Steel-wood structure residences are in line with my country's A new type of residential system based on national conditions and development trends of the times. It not only has historical significance for the inheritance and development of traditional architectural culture, but also meets current regional living requirements.

Contents of the invention

The purpose of the present invention is to provide a light steel frame-steel cable brace-small-diameter timber panel-composite board surface layer straight-section combined wall and method that has the advantages of simple operation, strong practicability, green environmental protection, earthquake resistance and energy saving, etc., in order to effectively solve the problem Traditional urban buildings have problems such as low earthquake resistance and energy consumption, poor thermal insulation performance, and slow construction speed. Comply with regional requirements and achieve a pollution-free, pollution-free, and comfortable living environment.

In order to achieve the above objects, the present invention adopts the following technical solutions:

The light steel-steel cable-small diameter timber-composite panel surface layer is a straight-shaped composite wall, which is characterized by: including a light steel frame (1), stiffening ribs (2), prestressed steel cable braces (3), fasteners ( 4), fastening flange rods (5), foamed polystyrene particle lightweight concrete (6), small-diameter bamboo nails spliced wooden boards (7), self-tapping nails (8) and composite facing boards (9). The light steel frame (1) is a straight beam-column frame structure. The light steel columns of the light steel frame (1) are vertical load-bearing components. The straight beam-column frame structure is the house wall; the prestressed steel cable braces (3) are inclined arranged crosswise, and connected to the stiffeners (2) welded on the beam-column nodes through fasteners (4). After being tightened through the fastening flange rods (5), they form a light steel frame with the light steel frame (1). Frame prestressed flexible support truss structure; small-diameter bamboo nails spliced wooden boards (7) are connected to the light steel frame (1) through self-tapping nails (8) to form a cavity, and the cavity is filled with foamed polystyrene particles lightweight concrete ( 6); The composite facing board (9) is attached to the outside of the small-diameter timber bamboo nail spliced wooden board (7) through adhesive glue, forming a straight-line combination wall of light steel-steel cable-small-diameter timber-composite board facing.

The light steel-steel cable-small diameter timber-composite plate surface layer is a straight-line combined wall, which is characterized in that: the light steel frame (1) is a beam-column frame structure, and its light steel columns are vertical load-bearing components, and its beams and columns Use C-shaped steel, U-shaped steel or rectangular steel pipes, and beam and column nodes are welded; the wall thickness of C-shaped steel, U-shaped steel and rectangular steel pipes is not less than 2mm, and the outer dimension is not less than 60mm. The openings of C-shaped steel and U-shaped steel face the wall; light steel The stiffeners (2) welded at the beam-column nodes of the frame (1) have a thickness of not less than 4mm and a shape of triangle, rectangle or trapezoid. The stiffeners (2) serve to strengthen the nodes and connect the prestressed steel cable braces (3) at the same time. .

The light steel-steel cable-small diameter timber-composite plate surface layer is a straight-shaped composite wall, which is characterized in that the steel cable supports 3 are arranged diagonally and crosswise, and are connected to the beams and columns welded on the beam-column nodes through fasteners (4). The stiffening rib (2) is connected, the fastening flange rod (5) and the prestressed steel cable brace (3) form a prestressed cable, and form a light steel frame prestressed flexible support truss with the light steel frame (1), which forms an enhanced resistance The stress-bearing system of the light steel truss structure with horizontal shear capacity; the tensile properties of the fastening flange rod (5) and the prestressed steel cable brace (3) can be fully exerted, and the prestressed prestressed steel cable brace (3) has structural Certain self-restoring performance after deformation; the inclination angle of the prestressed steel cable brace (3) is 45 degrees to 60 degrees. The prestressed steel cable brace (3) is divided into two sections, and one end of each section of steel cable passes through the stiffening rib (2 ) and tighten it with the fastener (4), and the other end hooks the hook of the fastening flange rod (5) and tightens it with the fastener (4).

The light steel-steel cable-small diameter timber-composite plate surface layer is a straight-line combined wall, which is characterized in that: the foamed polystyrene particle lightweight concrete (6) is a lightweight thermal insulation material, and the prestressed steel cable brace ( 3), the light steel frame (1) and the small-diameter bamboo nail-joined wooden board (7) have good bonding properties, and the foamed polystyrene particle lightweight concrete (6) is filled in the small-diameter bamboo-nailed wooden board (7) without gaps. ) and the light steel frame (1) to improve the insulation performance of the wall and the durability of the steel components to prevent corrosion; when the light steel frame (1) uses a rectangular steel pipe, a circle with a diameter of 30mm-50mm is opened on the inside of the rectangular steel pipe. holes, foamed polystyrene particle lightweight concrete (6) is poured into the steel pipe through the round holes during the foaming process; at the same time, the light steel frame (1) and prestressed steel cable braces (3) are spliced with small-diameter bamboo nails to splice the wooden boards (7) and foamed polystyrene particle lightweight concrete (6) form a multiple combination wall, which has excellent mechanical and thermal properties integrating enclosure, thermal insulation, load-bearing and lateral force resistance.

The small-diameter bamboo nail-joined wooden board (7) serves as an enclosure structure and also serves as a disassembly-free formwork, and is fixed on the light steel frame (1) through self-tapping nails (8). The small-diameter bamboo-nailed wooden board (7) has a skin Function, the small-diameter timber spliced wooden boards (7) and the light steel frame (1) form a steel-wood composite structure, and the force is synergized to realize the stress-bearing advantage combination of the light steel and small-diameter timber spliced boards; the small-diameter timber spliced wooden boards (7) ), processed into long strips of small-diameter wood in the factory and connected by bamboo nails to ensure that the long-shaped small-diameter wood is tightly spliced. The bamboo nails firmly connect each strip of small-diameter wood to form a small-diameter wood bamboo nail splicing board (7); small-diameter wood A dovetail groove is formed on the inside of the bamboo nail spliced wooden board (7) every 100mm-200mm, which is conducive to tight connection with the foamed polystyrene particle lightweight concrete (6). Small-diameter wood, one is the remaining logs from forest logging (the length is 2000mm-6000mm, the diameter is 40mm-160mm), the other is the small logs that have not reached the commercial wood diameter grade during the wood processing process.

The composite surface board (9) is attached to the outside of the small-diameter bamboo nail spliced wooden board (7) through adhesive glue. The thickness of the composite board surface layer is not less than 3mm, which plays a role in making the surface of the combined wall beautiful, smooth and strong; The composite surface board (9) adopts wooden three-layer board or multi-layer board or biomass composite surface decorative board.

The described light steel-steel cable-small diameter timber-composite board surface layer combined wall construction method is characterized by:

The first step: locate and erect the light steel frame. The frame beams and columns in the light steel frame are welded at the node positions; determine the positions of the four corner stiffeners of the light steel frame and weld them.

Step 2: One end of the steel cable passes through the round hole of the stiffener and is fastened with the fastener. The other end is hooked with the flange rod hook and fastened with the fastener. Then tighten the flange rod to apply prestress to the steel cable. .

Step 3: Use bamboo nails to connect long strips of small-diameter wood into small-diameter spliced wooden boards, fix them on the light steel frame through self-tapping nails, and wrap the light steel frame.

Step 4: Fill the cavity formed by the light steel frame and small-diameter splicing boards with foamed polystyrene particle lightweight concrete. After foaming and consolidation, the light steel frame and small-diameter splicing boards form an integrated steel-wood-light structure. Concrete composite structure.

Step 5: Polish the surface of the small-diameter spliced wooden boards.

Step 6: Attach the composite veneer to the outer surface of the small-diameter wood splicing board through wood adhesive glue.

The invention discloses a light steel frame-steel cable brace-small-diameter timber panel-composite plate surface layer straight-section combined wall and its method, and belongs to the technical field of building energy conservation and earthquake resistance. The invention is suitable for low and multi-story urbanized residential systems. The light steel columns in the light steel frame are vertical load-bearing components. The beams and columns are made of C-shaped steel, U-shaped steel or rectangular steel pipes, and the beam-column nodes are welded. The prestressed steel cable braces are arranged diagonally and crosswise, and form a light steel frame prestressed flexible support truss structure with the light steel frame; small-diameter timber panels serve as enclosures and also serve as demolition-free formwork, and are connected with the light steel frame to form a cavity. The cavity is filled with lightweight concrete with foamed polystyrene particles to form an insulation layer; the dead weight of the structure is reduced, and the advantageous combination of light steel and small-diameter wood is achieved, giving the wall a traditional architectural style and improved seismic performance. In order to ensure that the wall is smooth, strong and beautiful, the composite surface board is attached to the outside of the small-diameter timber panels to form a combined wall of light steel frame-steel cable support-small-diameter timber panels-composite panel surface with a straight cross-section. The combined wall has excellent mechanical and thermal properties integrating enclosure, thermal insulation, load-bearing and lateral force resistance, and meets the requirements of green, environmentally friendly and sustainable development of buildings.

Compared with existing technology, it has the following advantages:

(1) High level of industrialization. The light steel frame-steel cable brace-small-diameter timber panel-composite board surface layer straight-section combined wall proposed by the invention is suitable for low- and multi-story buildings. Light steel components, small-diameter lumber panels, and composite panels are produced in factories, with a high degree of standardization, simple on-site assembly processes, and short construction periods to meet the needs of sustainable development.

(2) Integration of enclosure, thermal insulation, load-bearing and lateral force resistance. In the light steel frame of the present invention, the light steel columns are vertical load-bearing components, and the prestressed steel cable braces are arranged diagonally and crosswise to form a light steel frame prestressed flexible support truss structure with the light steel frame; the small-diameter timber panels serve as an enclosure and Make a disassembly-free formwork and wrap it around the outside of the light steel frame to bear force together with it to prevent the light steel components from rusting and premature yielding and instability. At the same time, it is connected to the light steel frame to form a cavity, and the cavity is filled with foamed polystyrene particles and lightweight concrete to form an insulation layer, which reduces the weight of the structure. It is lighter than a solid concrete wall and has better seismic resistance than a brick wall.

(3) Compared with traditional reinforced concrete structures, steel structures and steel-concrete structures, on-site construction, later dismantling, and treatment processes achieve energy saving and emission reduction, meet regional requirements, and provide high living comfort. Compared with pure wooden structures, it has low cost and simple structure.

(4) The building has a traditional architectural style, is stronger and more durable than traditional wooden structures, and more colorful than light steel structures. The combined wall proposed by the present invention uses a light steel frame as a load-bearing structure, and is wrapped with small-diameter timber panels for enclosure. It achieves a relative balance in the use of wood and will not lead to a large amount of abuse of wood. The design is easy to assemble and disassemble, and can Improving the recycling rate of wood and steel in building materials reduces the waste of building materials and has broad application prospects.

(5) Convenient transportation and installation. The prefabricated components used in the present invention are light in weight and easy to transport and install.

(6) Significantly reduce wet work on the construction site, reduce the time required for on-site maintenance, and speed up the construction progress. All components in the light steel frame-steel cable brace-small-diameter timber panel-composite plate surface layer straight-section combined wall proposed by the present invention can be made in the factory and mechanized on-site, except for the lightweight foamed polystyrene particles. Concrete, other processes do not require wet work. At the same time, it reduces formwork projects, cast-in-place projects, etc., saves resources, saves labor, reduces management costs, and ensures project quality.

Description of the drawings

Figure 1 Elevation view of the combined wall with light steel frame-steel cable brace-small-diameter timber panels-composite board surface layer with a straight cross-section;

Figure 2 Partial structural diagram of the light steel frame-steel cable brace-small-diameter lumber panel-composite board surface straight-section combined wall;

Figure 3 Elevation view of light steel frame with steel cable supports;

Figure 4. Elevation and partial view of small-diameter timber panel with dovetail groove;

Figure 5 Partial view of stiffener connector;

Figure 6 Cable-stayed steel cable brace connection diagram

In the picture: 1 light steel frame, 2 stiffeners, 3 prestressed steel cable supports, 4 fasteners, 5 fastening flange rods, 6 foamed polystyrene particle lightweight concrete, 7 small diameter bamboo nails spliced wooden boards, 8 Self-tapping nails, 9 composite facing boards.

Detailed ways

The present invention will be further described below with reference to specific implementation examples.

As shown in Figures 1-6, the light steel frame-steel cable brace-small-diameter timber panel-composite panel surface layer straight-section combined wall of the present invention mainly consists of a light steel frame 1, stiffening ribs 2, and prestressed steel cable braces. 3. Fasteners 4. Fastening flange rods 5. Foamed polystyrene particles lightweight concrete 6. Small-diameter bamboo nails spliced wooden boards 7. Self-tapping nails 8. Composite surface panels 9. It is characterized in that: the light steel columns in the light steel frame are used as vertical load-bearing components, and the beam-column nodes are welded. The prestressed steel cable braces are arranged diagonally and crosswise, and form a light steel frame prestressed flexible support truss structure with the light steel frame; small-diameter timber panels serve as enclosures and also serve as demolition-free formwork, and are connected with the light steel frame to form a cavity. The cavity is filled with foamed polystyrene particles and lightweight concrete to form an insulation layer; the composite surface board is attached to the outside of the small-diameter timber panels to ensure that the wall is smooth, strong and beautiful. The combined wall has integrated properties of earthquake resistance, energy saving, thermal insulation and enclosure, is low in cost, meets regional requirements, improves living comfort, and is suitable for low and multi-story urban residential structural systems.

Claims (7)

1. Light steel-steel cable-small-diameter timber-composite panel surface in-line composite wall, which is characterized by: including light steel frame (1), stiffening ribs (2), prestressed steel cable braces (3), fastening Parts (4), fastening flange rods (5), foamed polystyrene particle lightweight concrete (6), small-diameter bamboo nails spliced wooden boards (7), self-tapping nails (8) and composite facing boards (9) ; The light steel frame (1) is a straight beam-column frame structure, the light steel columns of the light steel frame (1) are vertical load-bearing components, and the straight beam-column frame structure is the house wall; prestressed steel cable braces (3) Arranged diagonally across, and connected to the stiffeners (2) welded on the beam-column nodes through fasteners (4). After fastening through the fastening flange rod (5), the fastening flange rod (5) and The prestressed steel cable braces (3) form prestressed cables, and together with the light steel frame (1) form a light steel frame prestressed flexible support truss, that is, a light steel truss structural stress system with enhanced resistance to horizontal shear force is formed; small diameter bamboo The nail-joined wooden boards (7) are connected to the light steel frame (1) through self-tapping nails (8) to form a cavity, and the cavity is filled with foamed polystyrene particles and lightweight concrete (6); the foamed polystyrene particles are lightweight High-quality concrete (6), a lightweight insulation material, has bonding properties with prestressed steel cable braces (3), light steel frames (1) and small-diameter bamboo nail spliced wooden boards (7); composite facing panels (9) Adhesive glue is applied to the outside of the small-diameter bamboo nail splicing board (7). The small-diameter bamboo nail splicing board (7) serves as an enclosure structure and also serves as a disassembly-free formwork, and is fixed to the light steel frame through self-tapping nails (8). (1), forming a linear combination wall of light steel-steel cable-small diameter timber-composite board surface; the light steel frame (1) is a beam-column frame structure, and its light steel columns are vertical load-bearing components. The beams and columns are made of C-shaped steel, U-shaped steel or rectangular steel tubes, and the beam-column nodes are welded; the tensile properties of the fastening flange rods (5) and the prestressed steel cable braces (3) are fully exerted, and the prestressed steel cable braces (3) have Self-healing performance; the foamed polystyrene particle lightweight concrete (6) is filled without gaps in the cavity formed by the small-diameter bamboo nail spliced wooden board (7) and the light steel frame (1); the light steel frame (1) and the prefabricated The stress steel cable brace (3) is combined with small-diameter bamboo nails to splice wooden boards (7) and foamed polystyrene particle lightweight concrete (6) to form a multiple combination wall; the prestressed steel cable brace (3) is divided into two sections, each One end of the steel cable section passes through the round hole of the stiffening rib (2) and is fastened with the fastener (4). The other end hooks the hook of the fastening flange rod (5) and is fastened with the fastener (4); The foamed polystyrene particle lightweight concrete (6) is poured into the steel pipe through round holes during the foaming process; the small-diameter bamboo nail-joined wooden board (7) has a skin effect, and the small-diameter bamboo nail-joined wooden board (7) is connected to the light steel frame (1) Forming a steel-wood composite structure; small-diameter wood is spliced with bamboo nails (7), which is processed by the factory into long strips of small-diameter wood and connected by bamboo nails to ensure that the long-shaped small-diameter wood is tightly spliced and the bamboo nails are firmly connected to each piece. The small-diameter timbers are then spliced with small-diameter bamboo nails to form wooden boards (7); the composite surface board (9) adopts wooden three-layer boards or multi-layer boards or biomass composite surface decorative boards. 2. The light steel-steel cable-small diameter timber-composite plate surface layer in-line combined wall according to claim 1, characterized in that: the wall thickness of C-shaped steel, U-shaped steel and rectangular steel pipe is not less than 2mm, and the outer profile size is not less than 2mm. Less than 60mm, the openings of C-shaped steel and U-shaped steel face into the wall; light steel frame (1) stiffeners (2) welded at the beam-column nodes, the thickness is not less than 4mm, the shape is triangle, rectangle or trapezoid, the stiffeners (2) ) simultaneously serves to strengthen the nodes and connect the prestressed steel cable braces (3). 3. The light steel-steel cable-small-diameter timber-composite plate surface layer combined wall in a straight shape according to claim 1, characterized in that: the inclination angle of the prestressed steel cable brace (3) is 45 degrees to 60 degrees. 4. The light steel-steel cable-small diameter timber-composite plate surface layer combined wall in a straight shape according to claim 1, characterized in that: when the light steel frame (1) adopts a rectangular steel pipe, the inner diameter of the rectangular steel pipe is 30mm. -50mm round hole. 5. The light steel-steel cable-small-diameter timber-composite board surface layer combined wall in a straight shape according to claim 1, characterized in that: small-diameter timber bamboo nails are spliced into the wooden boards (7) to form a dovetail every 100mm-200mm on the inside. The groove is conducive to tight connection with the foamed polystyrene particle lightweight concrete (6). 6. The light steel-steel cable-small-diameter timber-composite plate surface layer combined wall in a straight shape according to claim 1, characterized in that: the composite surface layer board (9) is externally attached to the small-diameter timber through adhesive glue. Bamboo nails are used to splice the outside of the wooden boards (7), and the thickness of the composite board surface layer is not less than 3mm. 7. The method of utilizing the light steel-steel cable-small diameter timber-composite plate surface layer in-line combined wall as described in any one of claims 1 to 6, which is characterized by: The first step: locate and erect the light steel frame. The frame beams and columns in the light steel frame are welded at the node positions; determine the positions of the four corner stiffeners of the light steel frame and weld them; Step 2: One end of the steel cable passes through the round hole of the stiffener and is fastened with the fastener. The other end is hooked with the flange rod hook and fastened with the fastener. Then tighten the flange rod to apply prestress to the steel cable. ; Step 3: Use bamboo nails to connect long strips of small-diameter wood into small-diameter wood splicing boards, fix them on the light steel frame through self-tapping nails, and wrap the light steel frame; Step 4: Fill the cavity formed by the light steel frame and small-diameter splicing boards with foamed polystyrene particle lightweight concrete. After foaming and consolidation, the light steel frame and small-diameter splicing boards form an integrated steel-wood-light structure. concrete composite structures; Step 5: Polish the surface of the small-diameter spliced wooden boards; Step 6: Attach the composite veneer to the outer surface of the small-diameter wood splicing board through wood adhesive glue.