CN103388388A - Wall tile protection structure with bullet-proof and explosion-proof functions - Google Patents
Wall tile protection structure with bullet-proof and explosion-proof functions Download PDFInfo
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- CN103388388A CN103388388A CN2013103220723A CN201310322072A CN103388388A CN 103388388 A CN103388388 A CN 103388388A CN 2013103220723 A CN2013103220723 A CN 2013103220723A CN 201310322072 A CN201310322072 A CN 201310322072A CN 103388388 A CN103388388 A CN 103388388A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The invention discloses a wall tile protection structure with bullet-proof and explosion-proof functions. A plurality of wall tile units (1) are paved in a staggered way, and are bonded into a layered structure by adopting a bonding substance (4); and each wall tile unit (1) has a separate multilayer structure, namely, the wall tile units (1) are overlapped alternatively by using sheet block layers (2) and bonding substance layers (3), and the transverse sections are formed in a layered form. The protection structure has the advantages of attractiveness and easy-cleaning function of ordinary wall tiles, and capability of improving the high-speed impact resistance of building wall bodies (built or newly-built). The wall tile protection structure is low in manufacturing cost, is manufactured with a simple process, and is suitable for factory prefabrication and field rapid splicing.
Description
Technical field
The present invention relates to a kind of walltile safeguard structure, specifically relate to and a kind ofly can resist high speed impact, a kind of walltile safeguard structure with shellproof explosion prevention function.
Background technology
At present, protective is built (military installations, government facility mostly, embassy, nuclear power station etc.) all with steel concrete, build and form, and generally take to improve concrete strength, the methods such as structural element (wall, post etc.) thickness and reinforcement ratio that strengthen are carried out the anti-high speed impact ability of reinforcement self.Development along with science and technology, the conventional weapon power increases day by day, the C50 concrete is under 12.7mm armor-piercing incendiary penetration effect, invade and deeply can reach 15-20cm(800m/s left and right Shi Keda 25cm left and right), and the evidence concrete strength is increased to a certain degree very little to reducing the Penetration Depth contribution afterwards, and reinforcement ratio increases also not quite even can increase the weight of destructiveness to the contribution that reduces Penetration Depth.So both inconvenient, also impracticable by the impact resistance that the unlimited method that improves concrete strength or vast scale increase scantling or reinforcement ratio increases the members such as wall or post.
In the past, defensive function was not directly related with civilian construction.With respect to fortification, owing to considering economy and applicability, wall thickness and the column cross-section size of civilian construction are often less, and reinforcement ratio is also less.But in recent ten years, along with abroad with civilian construction (house, school, office building etc.) for the attack of terrorism case quantity of target increases, riddled with gaping wounds explosion scene even changed beyond recognition has been disclosed existing civilian construction and can not meet people to staying in indoor demand to seek asylum.Although China's attack of terrorism case seldom, but artificial residential building or office building bomb blast of making in the part criminal case, also have the building destruction that causes because of chemicals or liquefied gas blast of frequent report in recent years or collapse, equally the people's lives and property having been caused safely irretrievable loss; Therefore, people are revealed increasing worry to the overall security issue table of building under Impact Load around inhabitation and working environment.And,, due to the intrinsic fragility characteristics of the constructional materialss such as concrete or common brick, make existing wall body structure, under Impact Load, comminuted destruction may occur.The shell fragment that produces in impact process or concrete fragment will splash, and personnel inside and outside structure and the larger secondary of equipment formation are killed and wounded threat.
So we wish to increase toughness and the nonelastic deformation ability of the important components such as body of wall and post, postpone body of wall and the breaking-up time of post under high speed impact, more escape the time for the inside and outside personnel of building.If can improve toughness and the robustness of structural element, make body of wall still can keep globality under shock wave, may avoid body of wall to be worn out by shell fragment, reduce simultaneously the secondary lethality of breakage.
In order to improve the toughness of concrete material, the lot of domestic and international scholar is conceived to the fibre reinforced concrete composite material in recent ten years, comprises steel fibre, polypropylene fibre, polyethylene fibre etc., and has obtained a series of achievement in research.The inhibitory action of evidence steel fibre fracture is better than other fibers, but is applied to engineering material, and cost is higher.Some researchers, by add nanofiber or nanotube in concrete, obtained suppressing fully the conclusion in initial nanoscale crack, but identical test but are difficult to obtain same result of the test in other scholars' laboratory.The scholar is also arranged by at concrete test block, near the test of the place layout gauze wire cloth on top layer, up and down, reaching a conclusion: the anti-bullet impact property of arranging the concrete test block of gauze wire cloth is better than the steel fiber reinforced concrete test block.Although arrange the gauze wire cloth relatively economical, the engineering practical operation bothers and often runs into top layer concrete or cement mortar and gauze wire cloth due to the tight situation about breaking away from of bonding.At present, newer in research aspect the shock resistance constructional materials is ECC(engineered cementitious composites) and the cement based Functionally Graded Materials, the impact resistance of ECC material remain experimental verification and also the cost of material own higher, can't extensive use.The cement based Functionally Graded Materials can produce and heave after a bullet hits, reduced the protection probability of anti-multiple strike.Multilayer materials early has application aspect shock resistance, especially Al2O3 ceramet MULTILAYER COMPOSITE plate armour or ceramic base Functionally Graded Materials composite armour are had a lot of researchs and application both at home and abroad on military field.But in concrete building structures, research about cement based multilayer materials or structure is less, comprising the lamination concrete slab (patent No. is US20040231273A1) of Michael Schmitz invention a kind of multilayer materials (patent No. is US006790544B2) in 2004 and Guy Bamford invention in 2004.
Bionical concept and research are long-standing, be widely used in fields such as engineering and medical science, but for the field of civil engineering of emphasizing macroscopic view and non-accurate construction, this concept are but often out in the cold.The nacre of abalone shells forms very simple, but has excellent mechanical property, and most scholar thinks that the microcosmic laminated construction of nacre is primary influence factor.Shi Shaoqing etc. take a hint from the structure of shell pearl layer, researched and developed honeycomb steel tube constraint concrete safeguard structure (letters patent book number is ZL03233831.7), think that the hoop effect of steel pipe can increase concrete compressive strength greatly, and the interlayer interlaced arrangement has played deflecting action to crackle.Although the surface structure of its cellular safeguard structure is imitative shell, structural principle is but different from shell.Its " deflecting action " to crackle remains to be probed into.Shell is to utilize " weak " layer to carry out guiding crack deflection, and honeycomb steel tube constraint concrete safeguard structure not obvious " weak " layer, crackle is probably that " stopping " is in the side direction steel pipe.The bone of human body and tendon have very high toughness equally, but constituent and structure are more complicated.The present invention obtains the design enlightenment from the Partial Feature of nacre and tendon, in order to the ability of the anti-high speed impact that improves construction wall or post (built or newly-built).
Summary of the invention
Technical problem to be solved by this invention is to provide the walltile safeguard structure with shellproof explosion prevention function that a kind of cost is not high, technique is simple and handsome in appearance.
In order to solve the problems of the technologies described above, walltile safeguard structure with shellproof explosion prevention function provided by the invention, a plurality of walltiles unit dislocation laying and the layer structure that adopts the binding bonding to form, each described walltile unit is again an independent sandwich construction, be that described walltile unit is superimposed by sheet piece and binding layer, cross section presents layered arrangement.
The thickness of described piece layer is 2 to 20 times of thickness of described binding layer.
Described piece layer is architectural pottery sheet, cement-base composite material, glass or Rock laminate.
Described piece layer arranged and formed by some uniform little block, and the length of described little block is 5 to 20 times of thickness; The side clearance width of adjacent described little block is 1/6 to 1/2 of described binding layer thickness, and gap is by described binding layer filling or without filling.
Described little block is regular polygon or irregular polygon, and surface should be rough and uneven in surface, and the modular ratio of described little block and described binding layer is 20～100.
Dislocation bonding between adjacent described little block, if little block is square, dislocation direction misplaces along foursquare diagonal, if little block is regular hexagon, dislocation direction is along the vertical line dislocation in orthohexagonal diagonal or sideline.
Described walltile unit is plane or is spherical shape.
Increase and have one deck fleece or short fiber to strengthen in the described binding layer of every one deck, namely contain the binding bonding of fleece or short fiber between two-layer described piece layer with one deck, play reinforced cementitious and prevent the effect that potsherd splashes.The fleece mesh does not need very little, and actual mechanical process can be brushed the thin cementing agent of one deck on sheet piece layer, then spread fleece, then brush the skim cementing agent, then lays the second synusia piece layer thereon.
Described binding layer is epoxy resin, polyurethane, glass cement or ceramic tile special glue.
Described adhesive between described walltile unit adopts epoxy resin or cement mortar.
Adopt the walltile safeguard structure with shellproof explosion prevention function of technique scheme, its basic principle is: " walltile " safeguard structure absorbs wave energy by increasing crack quantity, fracture length and plastic strain, reduces crater depth.Concrete manifestation:
1. the common building ceramic hardness is higher,, as the surface course bullet that can wear and tear, even makes common bullet distortion, so can the rapid dispersion concentrated stress.2. the binding material that has low elastic modulus and low poisson's ratio can effectively hinder the impact of collision wave propagation, postponed elastic stress wave and entered the time of lower one deck, also reduced wave amplitude and wavelength, is conducive to absorb and the kinetic energy of more bullets that dissipate.3. staggered floor construction and tack coat with low elastic modulus can induce crack to produce and deflection, make crack many and tortuous, increase plastic strain, reduce even to eliminate stress concentratedly, are conducive to keep the globality of overcoat and the building unit after overcoat.4. rough little ceramic surface helps to improve tensile strength and the shear strength of overcoat in deformation process, improves yield stress.
The advantage of " walltile " safeguard structure is: not only have the function attractive in appearance, easy to clean of common walltile, can also improve the bulletproof ability of construction wall (built or newly-built).Novel " walltile " compared with common walltile, although the number of plies increases, technique is uncomplicated, and " fragment of brick " structure can be prefabricated, and on-the-spot laying.Compare with senior bullet resistant material (as armour steel, bulletproof ceramic, bulletproof glass), novel " walltile " cost aspect has clear superiority.
The present invention on the basis of bionical and shock wave theory, has proposed that a kind of cost is not high, technique is simple and handsome in appearance, can be used for the construction safety structure of engineering reality.
Advantage of the present invention is: under the high speed impact effect, the development test result of report is compared with existing structure and present stage, and it has obviously reduced the destructivenesss such as crater depth that concrete wall or pillar form, crater area.
The meaning of invention is to be national defence building, listed building, and especially some office house buildings provide better safety guarantee.
In sum, the present invention is the walltile safeguard structure with shellproof explosion prevention function that a kind of cost is not high, technique is simple and handsome in appearance.
Description of drawings
Fig. 1 is regular hexagon potsherd metope;
Fig. 2 is along A-A sectional drawing in Fig. 1;
Fig. 3 is square ceramic walltile schematic diagram;
Fig. 4 is square ceramic walltile body of wall section;
Fig. 5 is spherical pottery walltile.
The specific embodiment
The present invention is further elaborated below in conjunction with drawings and Examples.
Embodiment 1:
It is 23mm that the present embodiment adopts inscribed circle diameter, and thickness is that the orthohexagonal potsherd of 4mm is stock making overcoat as sheet piece layer 2, i.e. architectural pottery mosaic, and binding layer 3 adopts respectively epoxy resin, glass cement and ceramic tile special glue.In the preparation process of every walltile unit 1, at potsherd, be first brushing one deck binding layer 3 on 2 layers, sheet piece layer, then spread one deck plastic fiber net, spread subsequently ceramic lamella, repeatedly repeat above operation, the thickness of sheet piece layer 2 is 2 to 20 times of thickness of described binding layer 3, and thing layer 3 to be bonded solidifies and obtains walltile unit 1, and the cross section of walltile unit 1 presents layered arrangement.Adopt the dislocation laying to be bonded on protected body of wall 5, as shown in Figure 1 and Figure 2 as binding 4 walltile unit 1 use cement mortar or epoxy resin.Walltile unit 1 can be plane, also can be spherical shape, and spherical shape as shown in Figure 5.
It is 315mm that the overcoat of making is sticked on diameter, high 300mm, and compressive strength is 75MPa, splitting tensile strength is on the PVC concrete cylindrical test specimen of 8MPa, uses the 12.7mm armor-piercing incendiary to do penetration test.Result of the test such as following table:
, in the situation that there is the corresponding bullet velocity of the test specimen of overcoat higher than unshielded layer test specimen, there is the anti-resilience energy power of test specimen of overcoat to improve respectively 14%, 26% and 32%.Although it is minimum that the overcoat that the glass cement cementing agent is corresponding is invaded dark reduction rate, but kept best integrality after penetration, out surface only has 2 ceramic mosaics to be punched, and there is no the fragment splash phenomena.
Embodiment 2:
It is that 25mm, thickness are that the foursquare potsherd of 4mm is the sheet piece layer 2 that stock is made overcoat that the present embodiment adopts the length of side, i.e. architectural pottery mosaic, and binding layer 3 adopts epoxy resin, glass cement or ceramic tile special glue.In the preparation process of every walltile unit 1, the binding layer 3 that first brushing one deck has short plastic optical fibre to strengthen on the ceramic lamella of sheet piece layer 2, spread subsequently ceramic lamella, the thickness of sheet piece layer 2 is 2 to 20 times of thickness of described binding layer 3, repeatedly repeat above operation, to be bonded dose of curing obtains walltile unit 1.Adopt the dislocation laying to be bonded on protected body of wall 5, as shown in Figure 3 and Figure 4 the binding of walltile unit 1 use cement mortar or epoxy resin 4.Walltile unit 1 can be plane, also can be spherical shape, and spherical shape as shown in Figure 5.
Potsherd in above-described embodiment can replace with cement-base composite material, glass or Rock laminate.
Little block is regular polygon or irregular polygon, and surface should be rough and uneven in surface, and the modular ratio of little block and binding layer 3 is 20～100.
Dislocation bonding between adjacent little block, if little block is square, dislocation direction misplaces along foursquare diagonal, if little block is regular hexagon, dislocation direction is along the vertical line dislocation in orthohexagonal diagonal or sideline.
Claims (10)
1. walltile safeguard structure with shellproof explosion prevention function, it is characterized in that: a plurality of walltiles unit (1) dislocation laying and the layer structure that adopts binding (4) bonding to form, each described walltile unit (1) is again an independent sandwich construction, be that described walltile unit (1) is superimposed by sheet piece layer (2) and binding layer (3), cross section presents layered arrangement.
2. the walltile safeguard structure with shellproof explosion prevention function according to claim 1 is characterized in that: the thickness of described piece layer (2) is 2 to 20 times of thickness of described binding layer (3).
3. the walltile safeguard structure with shellproof explosion prevention function according to claim 1 and 2 is characterized in that: described piece layer (2) is architectural pottery sheet, cement-base composite material, glass or Rock laminate.
4. the walltile safeguard structure with shellproof explosion prevention function according to claim 1 and 2 is characterized in that: described piece layer (2) arranged and formed by some uniform little block, and the length of described little block is 5 to 20 times of thickness; The side clearance width of adjacent described little block is 1/6 to 1/2 of described binding layer (3) thickness, and gap is by described binding layer (3) filling or without filling.
5. the walltile safeguard structure with shellproof explosion prevention function according to claim 4, it is characterized in that: described little block is regular polygon or irregular polygon, surface should be rough and uneven in surface, and the modular ratio of described little block and described binding layer (3) is 20～100.
6. the walltile safeguard structure with shellproof explosion prevention function according to claim 4, it is characterized in that: dislocation bonding between adjacent described little block, if little block is square, dislocation direction misplaces along foursquare diagonal, if little block is regular hexagon, dislocation direction is along the vertical line dislocation in orthohexagonal diagonal or sideline.
7. the walltile safeguard structure with shellproof explosion prevention function according to claim 1 and 2 is characterized in that: described walltile unit (1) is for plane or be spherical shape.
8. the walltile safeguard structure with shellproof explosion prevention function according to claim 1 and 2, it is characterized in that: increase and have one deck fleece or short fiber to strengthen in the described binding layer of every one deck (3), namely contain the binding bonding of fleece or short fiber between two-layer described piece layer (2) with one deck.
9. the walltile safeguard structure with shellproof explosion prevention function according to claim 1 and 2 is characterized in that: described binding layer (3) is epoxy resin, polyurethane, glass cement or ceramic tile special glue.
10. the walltile safeguard structure with shellproof explosion prevention function according to claim 1 and 2, is characterized in that: described adhesive (4) employing epoxy resin or cement mortar between described walltile unit (1).
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Cited By (4)
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| CN108164254A (en) * | 2018-02-01 | 2018-06-15 | 湖南中泰特种装备有限责任公司 | A kind of bulletproof ceramic sheet with cyclic structure, shellproof target plate and preparation method thereof |
| CN108661197A (en) * | 2018-06-21 | 2018-10-16 | 中国人民解放军61489部队 | A kind of steel pipe Ceramic Balls Basalt fiber concrete protective plate of anti-bomb penetration |
| CN110560686A (en) * | 2018-06-05 | 2019-12-13 | 深圳市裕展精密科技有限公司 | Bionic shell pearl layer toughening structure and preparation method thereof |
| CN113844124A (en) * | 2021-09-16 | 2021-12-28 | 深圳市航天新材科技有限公司 | Multi-level composite protection structure and preparation method thereof |
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| CN113844124A (en) * | 2021-09-16 | 2021-12-28 | 深圳市航天新材科技有限公司 | Multi-level composite protection structure and preparation method thereof |
| CN113844124B (en) * | 2021-09-16 | 2023-09-05 | 深圳市航天新材科技有限公司 | Multi-layer composite protective structure and preparation method thereof |
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