CN213296854U - Anti-knock and anti-impact composite wallboard - Google Patents
Anti-knock and anti-impact composite wallboard Download PDFInfo
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- CN213296854U CN213296854U CN202021717505.7U CN202021717505U CN213296854U CN 213296854 U CN213296854 U CN 213296854U CN 202021717505 U CN202021717505 U CN 202021717505U CN 213296854 U CN213296854 U CN 213296854U
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Abstract
The utility model provides an anti-knock and anti-impact composite wallboard, which comprises a polypropylene fiber concrete wall body, a bonding layer, a fiber reinforced composite material layer, a foamed aluminum filling body, a C-shaped steel plate, a bolt and a pressure relief hole which are formed in a pouring mode; the utility model discloses a C shaped steel board is with the fixed same whole that forms of each component, is difficult for producing the piece when resisting the explosion shock wave, has effectively avoided the secondary injury that produces by the piece, sets up the pressure release hole and can effectively reduce the damage of wallboard under the explosion impact load on the steel sheet. The utility model discloses both can be used to newly-built project's wallboard and be applicable to the building that has explosion-proof requirement again.
Description
Technical Field
The utility model relates to an engineering structure protection field especially relates to an antiknock impact-resistant composite wall panel.
Background
At present, most of building structures such as houses, office buildings, factory buildings and the like adopt reinforced concrete or other light materials as filling walls. When various accidental explosion events and terrorist explosion events occur, the explosion shock wave bearing material bears most of loads generated by explosion shock waves and plays a crucial role in resisting explosion of building structures. The existing concrete wallboard can be locally damaged or even collapsed under the action of explosive load, while the damage condition of the light material under the action of the explosive load is more serious; conventional concrete structures are generally resistant to blast impact loads by increasing the strength and rigidity of the structure, which results in a wall structure that is stiff under its own weight. In addition, the concrete structure is easy to produce high-speed fragments under the action of the explosion shock wave, and secondary damage can be caused to personnel and property.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides an antiknock impact-resistant composite wall panel has solved the problem of proposition in the above-mentioned background art.
The utility model provides an anti-knock and anti-impact composite wallboard, which comprises a polypropylene fiber concrete wall body, a bonding layer, a fiber reinforced composite material layer, a foamed aluminum filling body, a C-shaped steel plate, a bolt and a pressure relief hole which are formed in a pouring mode; the bonding layers are paved on the front side and the rear side of the polypropylene fiber concrete wall, the fiber reinforced composite material layer is paved on the outer surfaces of the bonding layers on the front side and the rear side, the C-shaped steel plate is wrapped on the outer periphery of the polypropylene fiber concrete wall, a cavity is formed between the C-shaped steel plate and the fiber reinforced composite material layer, the foamed aluminum filling body is filled in the cavity, threaded holes are formed in the left side and the right side of the polypropylene fiber concrete wall, through holes are formed in the positions, corresponding to the threaded holes, of the C-shaped steel plate, and the bolts penetrate through the through holes and then extend into the threaded holes to fix the C-shaped steel plate on the polypropylene fiber concrete wall.
Preferably, the thickness of the polypropylene fiber concrete wall body is 50mm-150 mm.
Preferably, the material of the bonding layer is selected from cement-based composite materials, and the thickness of the bonding layer is 5mm-20 mm;
preferably, the fiber reinforced composite material layer is selected to be a bidirectional grid woven by fiber bundles, and the grid size is 50mm multiplied by 50 mm;
preferably, the cement-based composite material is prepared by mixing, by mass, ordinary portland cement: water: quartz sand: fly ash: hydroxypropyl methylcellulose: polycarboxylic acid high-efficiency water reducing agent: mixing calcium aluminate cement in the proportion of 0.92:0.42:0.85:0.40:0.001:0.008:0.08 to obtain a matrix material, adding polyvinyl alcohol fibers with the volume parameter of 1.8% into the matrix material in unit volume, and fully and uniformly stirring to form the cement-based composite material;
preferably, a pressure relief hole is formed in the surface of the C-shaped steel plate;
preferably, glazing the outer surface of the C-shaped steel plate;
preferably, the thickness of the C-shaped steel plate 5 is 5mm-20mm, and the thickness of the cavity is 50mm-150 mm.
The utility model provides an antiknock impact-resistant composite wall panel, the foamed aluminum obturator wherein has the energy-absorbing characteristic, the tensile strength of the two-way net of weaving into by the tow is high and matter is light, it is corrosion-resistant, can strengthen the tensile strength of foamed aluminum obturator, cement base combined material has mechanical properties excellent, the ductility characteristic is showing, the microcrack, self-healing and characteristics such as anti erosion, simultaneously because the intensity of steel and concrete is high, rigidity is big, advantages such as bearing capacity is strong, make this composite wall panel both have certain bearing capacity and have certain antiknock impact resistance again. The utility model discloses a C shaped steel board is with the fixed same whole that forms of each component, is difficult for producing the piece when resisting the explosion shock wave, has effectively avoided the secondary injury that produces by the piece, sets up the pressure release hole and can effectively reduce the damage of wallboard under the explosion impact load on the steel sheet. The utility model discloses both can be used to newly-built project's wallboard and be applicable to the building that has explosion-proof requirement again.
Drawings
FIG. 1 is a schematic view of an anti-knock and anti-impact composite wall panel
FIG. 2 is a schematic cross-sectional view of an anti-knock and anti-impact composite wall panel
Wherein, 1 is a polypropylene fiber concrete wall; 2-a tie layer; 3-a fibre-reinforced composite layer; 4-foamed aluminum filler; 5-C type steel plate; 6-bolt; 7-pressure relief hole.
Detailed Description
For better explanation of the technical solution of the present invention, the following description will be made in conjunction with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solution in the embodiments of the present invention.
Referring to fig. 1 to 2, the present invention provides an anti-knock and anti-impact composite wall panel, which includes a polypropylene fiber concrete wall 1 formed by pouring, a bonding layer 2, a fiber reinforced composite material layer 3, a foamed aluminum filler 4, a C-shaped steel plate 5, a bolt 6, and a pressure relief hole 7; the bonding layers 2 are laid on the front side and the rear side of the polypropylene fiber concrete wall 1, the fiber reinforced composite material layer 3 is laid on the outer surfaces of the bonding layers 2 on the front side and the rear side, the C-shaped steel plates 5 are wrapped on the outer periphery of the polypropylene fiber concrete wall 1, a cavity is formed between the C-shaped steel plates 5 and the fiber reinforced composite material layer 3, the foamed aluminum filler 4 is filled in the cavity, threaded holes are formed in the left side and the right side of the polypropylene fiber concrete wall 1, through holes are formed in the C-shaped steel plates 5 at positions corresponding to the threaded holes, and the bolts 6 penetrate through the through holes and then extend into the threaded holes to fix the C-shaped steel plates 5 on the polypropylene fiber concrete wall 1.
Preferably, the thickness of the polypropylene fiber concrete wall 1 is 50mm-150 mm.
Preferably, the material of the bonding layer 2 is selected to be a cement-based composite material, and the thickness of the bonding layer 2 is 5mm-20 mm;
preferably, the fiber reinforced composite material layer 3 is selected as a bidirectional grid woven by fiber bundles, and the size of the grid is 50mm × 50 mm;
preferably, the cement-based composite material is prepared by mixing, by mass, ordinary portland cement: water: quartz sand: fly ash: hydroxypropyl methylcellulose: polycarboxylic acid high-efficiency water reducing agent: mixing calcium aluminate cement in a ratio of 0.92:0.42:0.85:0.40:0.001:0.008:0.08 to obtain a matrix material, adding polyvinyl alcohol fibers with a volume parameter of 1.8% into the matrix material in unit volume, and fully and uniformly stirring to form the cement-based composite material;
preferably, a pressure relief hole is formed on the surface of the C-shaped steel plate 5;
preferably, the outer surface of the C-shaped steel plate 5 is glazed to change the appearance pattern, so that the anti-knock and anti-impact composite wallboard has a certain decorative effect.
Preferably, the thickness of the C-shaped steel plate 5 is 5mm-20mm, and the thickness of the cavity is 50mm-150 mm.
The construction process of the anti-knock and anti-impact composite wallboard comprises the following steps: firstly, a 50-150 mm polypropylene fiber concrete wall is poured, then bonding layers are paved on the front surface and the rear surface of the polypropylene fiber concrete wall, then a fiber reinforced composite material layer is paved on the surface of the bonding layers, then through holes in a C-shaped steel plate are aligned with threaded holes in the polypropylene fiber concrete wall, bolts are inserted into the through holes and then screwed into the threaded holes, so that the C-shaped steel plate is fixed on the polypropylene fiber concrete wall, a cavity is formed between the C-shaped steel plate 5 and the fiber reinforced composite material layer 3, and the foamed aluminum filler 4 is filled in the cavity.
The preparation method of the cement-based composite material comprises the following steps: the cement is prepared from the following components in parts by mass: water: quartz sand: fly ash: hydroxypropyl methylcellulose: polycarboxylic acid high-efficiency water reducing agent: the preparation method comprises the following steps of preparing a base material from calcium aluminate cement in a ratio of 0.92:0.42:0.85:0.40:0.001:0.008:0.08, adding polyvinyl alcohol fibers with a volume parameter of 1.8% into the base material in unit volume, and fully and uniformly stirring to form the cement-based composite material, wherein the preparation method comprises the following specific steps:
1) the quartz sand, the fly ash, 50% of ordinary portland cement and 50% of calcium aluminate cement are mixed for 1.5min in a dry mode until dry materials are fully mixed, and then all water is added for wet mixing for 2min to prepare cement mixed mortar;
2) adding 25% of polycarboxylic acid high-efficiency water reducing agent into the mixture, stirring for 2min until the mixture is in a fluid state, adding 12.5% of ordinary portland cement and 12.5% of calcium aluminate cement, and stirring for 1min until all particles are fully wetted;
3) repeating the step 2 for three times;
4) slowly adding hydroxypropyl methyl cellulose and polyvinyl alcohol fiber along the stirring direction, and stirring for 4min to uniformly disperse the fiber, thereby finally obtaining the mixed mortar.
The polyvinyl alcohol fiber is doped into the cement-based composite material, so that the compressive strength, the breaking strength, the impact toughness and other properties of the material can be effectively improved, and the self strain capacity is improved to achieve the characteristics of cracking but not cracking, breaking but not bursting; meanwhile, the incorporation of the hydroxypropyl methyl fiber and the calcium aluminate cement can improve the adhesion and the high temperature resistance of the cement-based composite material. Effectively prevents the foamed aluminum material from being broken down in the explosion process under the combined action of the cement-based composite material and the fiber reinforced composite material. The cement-based composite material has the advantages of excellent mechanical property, obvious ductility characteristic, micro-crack, self-healing, erosion resistance and the like, and can be used as a bonding material for bonding the cement-based composite material with polypropylene fiber concrete and foamed aluminum. The foamed aluminum material has the advantages of small density, high impact absorption capacity, high temperature resistance, high fireproof performance, corrosion resistance, sound insulation, noise reduction and low heat conductivity, and can be used as an energy-absorbing material for an anti-explosion and anti-impact wallboard. Compared with common concrete, the polypropylene fiber concrete has higher tensile strength, bending resistance, impact strength, elongation and toughness. The utility model discloses the atress performance of each component structure of fully considering both can satisfy the bearing capacity requirement of wallboard structure, simultaneously the effectual antiknock shock resistance who improves wallboard structure.
The above, only be the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is familiar with the technical field in the technical scope disclosed by the present invention, according to the technical scheme of the present invention and the utility model thereof, the concept of equivalent replacement and the obvious improvement of each technical scheme of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. An anti-knock and anti-impact composite wallboard comprises a polypropylene fiber concrete wall body (1), a bonding layer (2), a fiber reinforced composite material layer (3), a foamed aluminum filling body (4), a C-shaped steel plate (5), a bolt (6) and a pressure relief hole, wherein the polypropylene fiber concrete wall body is formed in a pouring mode; the method is characterized in that: the bonding layers (2) are laid on the front side and the rear side of the polypropylene fiber concrete wall body (1), the fiber reinforced composite material layer (3) is laid on the outer surfaces of the bonding layers (2) at the front side and the rear side, the C-shaped steel plate (5) is wrapped on the outer periphery of the polypropylene fiber concrete wall body (1), a cavity is formed between the C-shaped steel plate (5) and the fiber reinforced composite material layer (3), the foamed aluminum filler (4) is filled in the cavity, the left side and the right side of the polypropylene fiber concrete wall body (1) are provided with threaded holes, a through hole is formed on the C-shaped steel plate (5) at the position corresponding to the threaded hole, the bolts (6) extend into the threaded holes after penetrating through the through holes so as to fix the C-shaped steel plate (5) on the polypropylene fiber concrete wall body (1); the pressure relief hole is formed in the surface of the C-shaped steel plate (5), the thickness of the C-shaped steel plate (5) is 5mm-20mm, and the thickness of the cavity is 50mm-150 mm.
2. The blast-resistant impact-resistant composite wallboard of claim 1, wherein: the thickness of the polypropylene fiber concrete wall (1) is 50mm-150 mm.
3. The blast-resistant impact-resistant composite wallboard of claim 1, wherein: the material of the bonding layer (2) is selected from a cement-based composite material, and the thickness of the bonding layer (2) is 5mm-20 mm.
4. The blast-resistant impact-resistant composite wallboard of claim 1, wherein: the fiber reinforced composite material layer (3) is selected from a bidirectional grid woven by fiber bundles, and the size of the grid is 50mm multiplied by 50 mm.
5. The blast-resistant impact-resistant composite wallboard of claim 1, wherein: and glazing the outer surface of the C-shaped steel plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021717505.7U CN213296854U (en) | 2020-08-17 | 2020-08-17 | Anti-knock and anti-impact composite wallboard |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021717505.7U CN213296854U (en) | 2020-08-17 | 2020-08-17 | Anti-knock and anti-impact composite wallboard |
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| CN213296854U true CN213296854U (en) | 2021-05-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114347591A (en) * | 2022-01-28 | 2022-04-15 | 河北工业大学 | UHPC/foamed aluminum anti-explosion composite structure and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114347591A (en) * | 2022-01-28 | 2022-04-15 | 河北工业大学 | UHPC/foamed aluminum anti-explosion composite structure and preparation method thereof |
| CN114347591B (en) * | 2022-01-28 | 2024-01-19 | 河北工业大学 | UHPC/foamed aluminum antiknock composite structure and preparation method thereof |
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