CN202509656U - Cross-shaped steel screen composite mortar light hollow wall structure with hidden column - Google Patents

Abstract

The utility model relates to a light-weight hollow wall structure with a cross-shaped steel mesh composite mortar with concealed columns, which belongs to a new type of energy-saving, light-weight, heat-preserving composite hollow wall. Including steel trusses, steel mesh, composite mortar layer, polystyrene board, tie bars, hidden beams, hidden columns, the structural layer of the hollow wall is composed of the steel truss, steel mesh, and composite mortar layer, mainly used for enclosure Structure and load-bearing structure, the polystyrene board is installed between the steel truss and steel mesh, and the energy-saving layer is formed after the composite mortar is plastered, which mainly plays the role of heat preservation, heat insulation and sound insulation. The hidden beams and hidden columns are set In the hollow wall, it plays the role of adjusting its stiffness, improving its ductility and improving its seismic performance. The utility model is a green, energy-saving, heat-insulating composite mortar hollow wall structure integrating light weight, high strength, good overall performance, good earthquake resistance, and simple construction.

Description

Lightweight hollow wall structure with cross-shaped steel mesh composite mortar with concealed columns

technical field

The utility model relates to a light-weight hollow wall structure with a cross-shaped steel mesh composite mortar with concealed columns, which belongs to a new type of energy-saving, light-weight, heat-preserving composite hollow wall.

Background technique

With the development of social production and the needs of people's lives, the demand for housing is increasing day by day. First, masonry structures are often used as load-bearing or enclosure structures. For this reason, the amount of masonry is also increasing rapidly. Clay bricks have been widely used as load-bearing or maintenance structures in buildings. Clay bricks have high production energy consumption, heavy wall body, poor seismic performance, large amount of masonry work, resulting in serious energy consumption and environmental pollution. At the same time, it is not in line with my country's sustainable development strategy. In order to implement the basic national policy of protecting farmland, saving energy and protecting the environment, the state prohibits the use of clay solid bricks, and advocates the use of green and energy-saving new wall materials. Second, in the residential system dominated by small high-rise buildings, frame shear walls or shear wall structures are often used. The traditional cast-in-place shear wall structure, the wall's self-weight, high rigidity, poor ductility, poor thermal insulation, etc. can no longer meet the new requirements of modern green and energy-saving buildings for wall materials.

Expanded mesh composite mortar lightweight hollow wall is a new type of wall structure with light weight, high strength, low energy consumption and good seismic performance. It has made bold innovations in wall materials and building structures. This new type of hollow wall structure is completely It is in line with the concept of green, low-carbon, energy-saving and emission-reducing development proposed in my country's "Twelfth Five-Year Plan" Outline (6). The hollow wall structure is filled with polystyrene board in the middle, which can reduce its own weight, reduce structural rigidity, increase structural ductility, and has good thermal insulation performance. It has the advantages of easy material acquisition, simple manufacture, and convenient construction; and it also has huge social and environmental benefits in terms of energy saving and emission reduction.

Utility model content

The purpose of the utility model is to provide a green, energy-saving, Thermal insulation composite mortar hollow wall, especially a light-weight hollow wall structure with cross-shaped steel mesh composite mortar with concealed columns, to solve the new demand for wall materials in current green and energy-saving buildings.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

A light-weight hollow wall structure with cross-shaped steel mesh composite mortar with concealed columns, which is characterized in that it includes steel trusses (1), steel mesh (2), composite mortar layers (3), polystyrene boards (4), tie Ribs (5), concealed beams (6), concealed columns (7); the steel mesh (2) and the composite mortar layer (3) are sequentially arranged on the outside of the steel truss (1), and the steel truss (1), steel plate The net (2) and the composite mortar layer (3) form the structural layer of the hollow wall, which is mainly used for enclosure structures and load-bearing structures; the polystyrene board (4) is installed between the steel truss (1) and the steel mesh (2). The space between them constitutes an energy-saving layer, which mainly plays the role of heat preservation, heat insulation, and sound insulation; the hollow wall structure is provided with hidden beams (6) and hidden columns (7) arranged horizontally and vertically at intervals to adjust its rigidity. Improve its ductility and improve its seismic performance. Wherein, a concealed column (7) with a cross-section is provided at the cross intersection of the cross-shaped expanded metal composite mortar light hollow wall structure with concealed columns, and the rest of the concealed columns (7) are rectangular, and the cross-shaped columns with concealed columns are The cross intersections of the expanded metal composite mortar lightweight hollow wall structure are also provided with tie bars (5) for wall splicing.

Further, the steel truss (1) is composed of vertical Φ4300 cold-drawn steel wire, horizontal Φ4300 cold-drawn steel wire and vertical S-shaped Φ4150 cold-drawn steel wire welded.

Further, the expanded metal ( 2 ) adopts a standard rhombic expanded metal with a thickness of 0.4 mm to 0.8 mm and a mesh size of 8×16 mm, 10×20 mm or 20×25 mm.

Further, the composite mortar layer (3) is a high-performance composite mortar blended with superfine admixtures such as ettringite-type expansion agent, silica fume and fly ash, and fiber reinforcement materials, and its thickness is 35mm-40mm.

Further, the thickness of the polystyrene board (4) is 40mm-50mm.

Further, the tie bars (5) are cold-drawn steel wires with a diameter of 4mm, and the spacing is 300mm.

Further, the cross-sectional size of the concealed beam (6) is 50×120 mm to 80×120 mm, and the spacing is 400 to 600 mm.

Further, for the concealed column (7) with a cross-section, the free extension length and width of the flange of each limb are (0-120mm) × 120mm, and the cross-sectional dimensions of the other rectangular concealed columns (7) are 50×120mm-80× 120mm, the spacing is 600~900mm.

The utility model has the following advantages:

1. Flexible use and strong adaptability. It has excellent properties such as light weight, high strength, good overall performance, energy saving and heat preservation, sound insulation, earthquake resistance, and simple construction. It can be used as non-load-bearing walls such as infill walls, interior partition walls, exterior walls and roof panels. It can also be used as a lightweight shear wall for load-bearing walls and frames in residential buildings.

2. Green and environmental protection. Filling insulation materials, such as expanded polystyrene, foamed polyurethane, expanded perlite, frog stone, etc.; also can use cheap insulation materials mainly based on waste materials, such as waste loose rock wool, mineral wool, foam plastic waste , Slag mixed with lightweight aggregate, etc. And it has the advantages of light weight, heat preservation, sound insulation and convenient construction.

3. Composite materials. The high-performance composite mortar used is a new type of composite material formed by adding ettringite-type expansion agent, silica fume, fly ash and other ultra-fine admixtures to ordinary mortar and fiber reinforced materials. High-performance composite mortar has the characteristics of good toughness, high elongation, and good bonding performance. High-performance composite mortar and steel mesh, two different materials, play different roles in the structure. The steel mesh mainly plays the role of reinforcement, and the composite mortar layer mainly plays the role of protection and anchorage. The two learn from each other and work together to improve the performance of the components.

4. Good fire resistance and high temperature resistance. High-performance composite mortar is not only a cementing material, but also a protective material, and no additional protective layer is required. Tests have shown that the strength of high-performance composite mortar will not decrease by more than 30% when the temperature reaches 600°C. The high-performance composite mortar can effectively protect the steel mesh under high temperature, so that it can continue to bear the load.

5. The construction is convenient and the price is low. The wall structure is divided into two parts: factory processing and construction site production. The steel wire mesh wall processed by the factory is transported to the construction site, and after splicing into the required house wall on site, the composite mortar of the specified label is applied to the surface to complete the production of the house load-bearing wall. It also has the advantages of low cost, convenient construction, easy promotion, and easy construction quality assurance.

The scheme of the utility model is further described in detail below by means of the accompanying drawings and examples.

Description of drawings

Fig. 1 is the schematic plan view of the utility model;

Fig. 2 is the schematic sectional view of the utility model;

Fig. 3 is the axonometric view of the steel truss assembly of the present invention;

Fig. 4 is the front schematic view of the utility model;

Explanation of reference signs

1. Steel truss, 2. Expanded metal mesh, 3. Composite mortar, 4. Polystyrene board, 5. Tendon bars, 6. Concealed beam, 7. Concealed column.

Detailed ways

As shown in Figure 1-4, a light-weight hollow wall structure with cross-shaped steel mesh composite mortar with hidden columns of the present invention mainly consists of steel truss 1, steel mesh 2, composite mortar layer 3, polystyrene board 4, The cross-shaped basic wall unit composed of tie bars 5, concealed beams 6, and concealed columns 7, when splicing more than two basic wall units, use tie bars 5 to connect with a distance of 300mm. The steel truss 1, expanded metal 2, and composite mortar layer 3 form the structural layer of the hollow wall, which is mainly used for enclosure structures and load-bearing structures. The polystyrene board 4 is installed between the steel truss 1 and the expanded metal 2. In between, the energy-saving layer is formed after the composite mortar plastering, which mainly plays the role of heat preservation, heat insulation and sound insulation. The hidden beam 6 and hidden column 7 are arranged in the hollow wall to adjust its stiffness, improve its ductility, and improve its earthquake resistance The role of performance. Wherein, the steel truss 1 is composed of vertical Φ4300 cold-drawn steel wire, horizontal Φ4300 cold-drawn steel wire, and vertical S-shaped Φ4150 cold-drawn steel wire. The expanded metal mesh 2 is a standard rhombic expanded metal mesh with a plate thickness of 0.4 mm and a mesh size of 8×16 mm. The composite mortar layer 3 is a high-performance composite mortar mixed with ettringite-type expansion agent, silica fume, fly ash and other ultra-fine admixtures and fiber reinforcement materials, and its thickness is 40mm. The thickness of the polystyrene board 4 is 40mm, and a gap with a width of 50mm is reserved at the place where the hidden beam and the hidden column are arranged. The cross-sectional size of the hidden beams 6 is 50×120mm, and the spacing is 600mm. The concealed column 7 at the intersection of the cross is a cross section, and the free extension length and width of the flange of each limb are 120mm × 120mm. The cross-sectional size of the other rectangular concealed columns is 50 × 120mm, and the spacing is 600mm.

The above is only one of the embodiments of the utility model, and it can also be used in the reinforcement of other structural members. The basic unit of the hollow wall can be mass-produced in the factory, and then transported to the construction site to splice the required structure, and the composite mortar plastering completes the construction. Any modifications, changes or equivalent structural changes made to the above embodiments according to the technical essence of the present utility model shall belong to the protection scope of the technical solution of the present utility model.

Claims (8)

1. a band sleeper cross-shaped steel expanded metals composite mortar light hollow wall construction is characterized in that: comprise steel truss (1), expanded metal lath (2), composite mortar layer (3), polyphenyl plate (4), tension rib (5), dark beam (6), sleeper (7); Said expanded metal lath (2), composite mortar layer (3) are set in turn in steel truss (1) outside, and said steel truss (1), expanded metal lath (2) and composite mortar layer (3) are formed the deck of hollow wall; Said polyphenyl plate (4) is installed between steel truss (1), the expanded metal lath (2), constitutes energy-conservation layer; Be arranged at intervals with the dark beam (6) and the sleeper (7) that become horizontal and vertical setting respectively in the said hollow wall structure; Wherein, Said band sleeper cross-shaped steel expanded metals composite mortar light hollow wall construction cross place is provided with the sleeper (7) of a cross section; All the other sleeper (7) are rectangle, and said band sleeper cross-shaped steel expanded metals composite mortar light hollow wall construction cross place also is provided with the tension rib (5) that is used for the body of wall splicing.

2. band sleeper cross-shaped steel expanded metals composite mortar light hollow wall construction according to claim 1 is characterized in that: said steel truss (1) is to be welded to form by vertical Φ 4300 cold drawn wires, horizontal Φ 4300 cold drawn wires and vertical S type Φ 4150 cold drawn wires.

3. band sleeper cross-shaped steel expanded metals composite mortar light hollow wall construction according to claim 1; It is characterized in that: said expanded metal lath (2) adopts the standard expanded steel diamond mesh; Its thickness is 0.4mm～0.8mm, and mesh size is 8 * 16mm, 10 * 20mm or 20 * 25mm.

4. band sleeper cross-shaped steel expanded metals composite mortar light hollow wall construction according to claim 1, it is characterized in that: said composite mortar layer (3) thickness is 35mm～40mm.

5. band sleeper cross-shaped steel expanded metals composite mortar light hollow wall construction according to claim 1, it is characterized in that: the thickness of said polyphenyl plate (4) is 40mm～50mm.

6. band sleeper cross-shaped steel expanded metals composite mortar light hollow wall construction according to claim 1, it is characterized in that: said tension rib (5) is the cold drawn wire of diameter 4mm, spacing is 300mm.

7. band sleeper cross-shaped steel expanded metals composite mortar light hollow wall construction according to claim 1, it is characterized in that: the sectional dimension of said dark beam (6) is 50 * 120mm～80 * 120mm, spacing is 400～600mm.

8. band sleeper cross-shaped steel expanded metals composite mortar light hollow wall construction according to claim 1; It is characterized in that: the sleeper of said cross section (7); Its free extension in every limb edge of a wing and width are (0～120mm) * 120mm; All the other rectangle sleeper (7) sectional dimensions are 50 * 120mm～80 * 120mm, and spacing is 600～900mm.

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