CN106499121A - Explosion-proof reinforced concrete with negative Poisson ratio effect and preparation method thereof - Google Patents
Explosion-proof reinforced concrete with negative Poisson ratio effect and preparation method thereof Download PDFInfo
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
- E04C5/0609—Closed cages composed of two or more coacting cage parts, e.g. transversally hinged or nested parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/39—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
the steel bar structure unit with the negative Poisson ratio effect consists of n layers of steel bar hinges which are arranged in parallel, wherein the steel bar hinges are of axisymmetric polygonal structures with concave angles, the layer spacing is 30-150 mm, the symmetric polygonal structures are of six-edge concave structures, eight-edge concave structures, ten-edge concave structures or twelve-edge concave structures, and the sizes of the concave angles are β respectively1＝90°‑150°，β2＝100°‑160°，β3＝110°‑160°，β4110 ° -170 °; the diameter of the circumscribed circle of the axisymmetric polygon is 90mm-160 mm. The invention also discloses the explosion-proof reinforced concrete with the negative Poisson ratio effect, which consists of the reinforced steel bar structural units poured with concrete, and a preparation method thereof. Compared with the common reinforced concrete, the anti-explosion reinforced concrete prepared by the invention has the advantages that the storage modulus can be improved by 483 percent to the maximum extent; thereby greatly improving the capacity of resisting and absorbing the energy of the explosive load.
Description
Technical field
The invention belongs to building field, is related to a kind of armored concrete and preparation method thereof, specifically, it is related to a kind of tool
There is busting reinforcement concrete of Negative poisson's ratio and preparation method thereof.
Background technology
In recent years, the domestic, explosive incident of international community emerges in an endless stream.The personal property caused for blast load breaks
Bad, the most directly measure is the effective infrastructure explosion-proof lamp of design.However, the design concept master of conventional concrete
If improving self-strength, for dredging for blast process and the elimination of energy transmission can not be played a positive role.And from power
Learn angle analysis, the basic problem of blast is energy and non-force.Therefore, when the density of load exceedes critical strength, tradition is mixed
Solidifying soil has the explosion products such as the broken concrete or metal fragmentation of huge kinetic energy by directly release, realizes that energy discharges, because
This, easily causes the secondary injury to personal property.At present, building trade is more to armored concrete requires it is high-strength and steady
Fixed, although the research and development of its explosion-proof performance have also been reported, but still are confined to realize antiknock by improving self-strength.Mesh
Before, for the armored concrete of the building structure such as weight body Reinforcement Design be concentrated mainly on the ratio of reinforcement and strength control in terms of,
Concern is had no to the specific form and spread pattern of reinforcing bar.
The negative of transverse strain and longitudinal strain ratio when Poisson's ratio refers to material stress and deformation, is that reflection material opposing is outer
One important parameter of portion's load-carrying ability.Poisson's ratio is less, and material transverse strain during stress and deformation is bigger；Conversely, then
Less.The Poisson's ratio of general material is between 0 to 0.7.There is necking penomena when being subject to longitudinal tension stress to act in common material,
Its Poisson's ratio be on the occasion of.And negative poisson's ratio material, i.e. auxetic materials (Auxetic, from Greek), deformation is then contrary.Negative pool
Pine is laterally expanded when stretching than concrete in tension in elastic range, and when compressed, the horizontal of material is shunk on the contrary, is had
Effect opposing shearing force, absorbs the energy of outside release significantly.Negative poisson's ratio material possesses excellent by its Negative poisson's ratio
Elastic modelling quantity, break resistance and resilience toughness.The development of negative poisson's ratio material had more than 30 years, and its application is concentrated mainly on
The fields such as foamed materialss, lumbar disc prosthesis material, artificial blood vessel's substitution material.In field of explosion, once someone was by curtain design
Go out Negative poisson's ratio to realize explosion-proof purpose.However, in building field, there is presently no the related report of negative poisson's ratio concrete
Road, is applied to anti-explosion engineering and even more has never heard of.
For solving defect of the conventional concrete at explosion-proof aspect, the mesh for safely and effectively reducing the loss that blast is caused is realized
, the present invention plans the concept of " Negative poisson's ratio " and introduces concrete structure material field.Will be provided with the negative pool of explosion prevention function
Pine is applied to the industrial pipelines such as civilian, military building masonry wall or natural gas, oil than concrete so that standing blast load
During effect, body of wall or pipeline are shunk and unexpansive in the normal orientation of firing pulse.
Content of the invention
For existing armored concrete at the problems of explosion-proof aspect, busting reinforcement concrete of the present invention leads to
Negative poisson's ratio design is crossed, blast load energy can be effective against and absorb, so as to realize to building structure and its inside
Personal safety as well as the property safety is protected to greatest extent.
The technical scheme is that：Have Negative poisson's ratio bar construction unit, the bar construction unit by
The n-layer reinforcing bar hinge composition of parallel arrangement, the reinforcing bar hinge is the axial symmetry polygonized structure with interior re-entrant angle.Wherein, institute
N=2-4 is stated, interlamellar spacing is 30mm-150mm；The axial symmetry polygonized structure be six rib concave inward structures, eight rib concave inward structures,
Ten rib concave inward structures or 12 rib concave inward structures；As shown in Figure 1a, the eight ribs concave inward structure is as schemed for the six ribs concave inward structure
Shown in 1b, as illustrated in figure 1 c, the 12 rib concave inward structure is as shown in Figure 1 d for the ten ribs concave inward structure.The interior re-entrant angle size
Respectively β1=90 ° -150 °, β2=100 ° -160 °, β3=110 ° -160 °, β4=110 ° -170 °；The bar construction unit
The polygonal circumscribed circle diameter of axial symmetry be 90mm-160mm.
There is the busting reinforcement concrete of Negative poisson's ratio, if the busting reinforcement concrete is by having poured concrete
Dry bar construction unit composition；The bar construction unit is the above-mentioned bar construction unit with Negative poisson's ratio.
Wherein, each bar construction unit described also includes the fixed reinforcing bar of vertical direction, per layer of reinforcing bar hinge
Plane is vertical with fixed reinforcing bar；The direction of the interior re-entrant angle is consistent with the direction of propagation of blast load.
Wherein, it is ordered arrangement between the plurality of bar construction unit of composition busting reinforcement concrete；Described orderly
It is arranged as oriented and ordered closely spaced array (special concave inward structure is complete ordering to arrange shaped steel reinforced concrete), oriented and ordered interlayer array
(special indent/ordinary construction level replaces ordered arrangement shaped steel reinforced concrete), oriented and ordered interlayer intersection mosaic array are (special
Indent/ordinary construction ABA bars inlay arrangement shaped steel reinforced concrete), as shown in Figure 6.
Wherein, in reinforced concrete structure, reinforcing bar used is hot rolling plain bar, hot-rolled strip crescent moon rib reinforcement, hot-rolled strip etc.
In high rib reinforcement, waste heat treatment steel bar, steel strand wires, cold rolled reinforcing steel bar with ribs, cold drawn bar, cold drawn wire, cold-rolled torsion steel bar one
Plant or several, one or more in model 6,8,10,12,14,16,18,20,22,24,28,32mm.
Realize the design principle and contrast test of negative poisson's ratio：The present invention designs the reinforcing bar hinge arrangement of five kinds of forms altogether,
A kind of is regular reinforcement structure (square), and remaining four kinds is special concave inward structure with Negative poisson's ratio：Six rib indents
Structure, eight rib concave inward structures, ten rib concave inward structures or 12 rib concave inward structures.Tied with six rib concave inward structures, eight rib indents below
Illustrate as a example by structure.
In this six ribs concave inward structure, the hinge arrangement of eight rib concave inward structures, 90 ° -150 ° and 100 ° -160 ° are separately designed
Interior re-entrant angle.In both special constructions, which is carried out respectively such as the pressure in Fig. 2 directions, both structures will be in such as Fig. 3 institutes
Shrink on the direction for showing, so as to realize Negative poisson's ratio.
For regular reinforcement structure (square), six rib concave inward structures and eight rib concave inward structures, every kind of steel construction selects two
Layer, makes bar construction unit as shown in Figure 4 with bar connecting.As illustrated, the two-layer inside each bar construction unit
Structure identical parallel polygons are arranged vertically with fixed reinforcing bar by direction as shown；And the direction of interior re-entrant angle is passed with blast load
Broadcast direction consistent.
In order to realize best explosion-proof effect, the arrangement mode between each bar construction unit is also extremely important, it is necessary to adopt
(special with oriented and ordered closely spaced array (special concave inward structure is complete ordering to arrange shaped steel reinforced concrete), oriented and ordered interlayer array
Different indent/ordinary construction level replaces ordered arrangement shaped steel reinforced concrete), that oriented and ordered interlayer intersects mosaic array is (special interior
Recessed/ordinary construction ABA bars inlay arrangement shaped steel reinforced concrete) in a kind of ordered arrangement, respectively such as Fig. 6 a, Fig. 6 b and figure
Shown in 6c.
There is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, the preparation method is precast framework method,
Comprise the following steps：(1) prepare：According to the needs of bar construction unit, reinforcing bar is polished successively, bent and is cut；(2)
Fixed：The reinforcing bar of well cutting is fixed as the axial symmetry polygonized structure with interior re-entrant angle, then n-layer is had the axle of interior re-entrant angle
Symmetric polygonal structure is fixed and obtains bar construction unit, finally by bar construction unit ordered arrangement, obtains precast reinforced knot
Structure template；(3) paint：The surface-coated priming paint of the precast reinforced stay in place form prepared in step (2), strengthen interfacial adhesion with
Deformation concertedness；(4) pour：According to the proportion design mixed concrete of concrete, and be poured into prepared by step (3) pre-
In bar construction template processed, maintenance is stood, the busting reinforcement concrete with Negative poisson's ratio is obtained.Wherein, shown in Fig. 5
Loading direction of the direction of arrow for xoncrete structure load-bearing.
Wherein, the axial symmetry polygonized structure is six rib concave inward structures, eight rib concave inward structures, ten rib concave inward structures or ten
Two rib concave inward structures；The interior re-entrant angle is respectively β1=90-150 °, β2=100-160 °, β3=110-160 °, β4=110-
170°；The polygonal circumscribed circle diameter of the axial symmetry of the bar construction unit is 90mm-160mm.
Wherein, the bar construction unit includes the n-layer reinforcing bar hinge of parallel arrangement and the fixed reinforcing bar of vertical direction, per
The plane of the layer reinforcing bar hinge is vertical with fixed reinforcing bar；The direction of the interior re-entrant angle is consistent with the direction of propagation of blast load.
Wherein, the ordered arrangement is that oriented and ordered closely spaced array, oriented and ordered interlayer array or oriented and ordered interlayer are handed over
Fork mosaic array.
Wherein, in step (1) reinforcing bar polishing concretely comprise the following steps：Reinforcing bar is polished smooth, to becoming rusty, reinforcing bar is carried out simply
Processing of rust removing, facilitates experimental implementation.Bar bending is concretely comprised the following steps：Form size according to the reinforcing bar hinge arrangement for designing
And angle, required form is progressively curved using angle-bender.What reinforcing bar cut concretely comprises the following steps：To the bar construction for having bent
Initial processing is carried out, redundance is cut.
Wherein, in step (2) reinforcing bar fix concretely comprise the following steps：The reinforcing bar of well cutting is made by the way of binding and is poured
Fix position when building in a mold；Intersection point is tied with iron wire, and this experiment adopts one side along button method, first by iron wire pair during colligation
Button is converted into, reinforcing bar cross point is then worn down, iron wire two ends is intersected, is vised with pliers, length buckled by rotation 2-3 circles, the iron wire for stretching out
Degree should be moderate, is easy to few turn of fast bundle, can also improve efficiency while tying.
Wherein, priming paint described in step (3) is epoxy resin primer, poly phenol oxygen priming paint, alkyd amino base coat, zinc yellow
One kind or several in polyurethane primer, iron red alcohol acid resin primer, alkyd amino base coat, acrylic primer, polyureas priming paint
Kind.
In order to obtain the Poisson ratio of the busting reinforcement concrete prepared according to said method, the application adopts following methods
Test block is detected.
(1) method of testing
Reference《Standard for test methods of mechanical properties of ordinary concrete》(GB/T50081-2002) common test block is resisted
The test of Compressive Strength.Employ full-automatic pressure testing machine to test this kind of test block.
In order to accurately measure the consecutive variations situation of test block shape after the load that is under pressure, test is using minimum loading
Speed is loaded, and test block loading speed is 0.1MPa/s, while loading, shoots the complete of test block loading using industrial camera
Process, until there is macroscopic failure in test block.
(2) testing procedure
1. the test block of maintenance to stipulated time is taken out from fog room, put it in electric drying oven with forced convection and dry directly
To constant weight, then take out, be cooled to room temperature.
2. first the test zone (side) of test block surface is uniformly sprayed pitch-dark, then sprayed with white spray painting is random
On pitch-dark surface, the purpose for so processing is for the ease of observation, to meet the needs of digital speckle method test.
3. to be painted parch after, test block is placed on the bearing plate of pressure testing machine, and ensures bearing plate and test block
The center superposition of compression face.
4. firing test machine, lower platen is slowly risen, and when test block is soon contacted with top board, adjustment knob is at a slow speed
Rise, to make board uniformly contact with test block compression face.
5. test parameter is set, starts to test after clearing, until test specimen produces macroscopic failure.And in the same of loading procedure
When, continuously to be taken pictures with industrial camera, each time period destroyed to test block not in the same time is recorded in real time.
6. data processing：Correlation analysiss are carried out using DSCM softwares (exploitation of engineering mechanics system of Tsing-Hua University).This method
The DSCM method that using correlation coefficient interpolation fit deficiency measure big strain displacement field in terms of compensate for a great extent,
Deformation of the concrete sample in the case of uniaxial compression can be studied, and the change of displacement field and strain field can be given simultaneously.
Beneficial effects of the present invention：
(1) reinforcing bar in the form and angle, and concrete by designing bar construction unit of novelty of the present invention
The stacked array distribution of construction unit obtains the precast reinforced stay in place form for possessing negative poisson's ratio；Then precast framework method is adopted,
And interfacial adhesion and the synergitic priming paint of deformation can be effectively improved in precast framework surface-coated, prepare and possess negative poisson's ratio effect
The busting reinforcement concrete that answers.
(2) with Poisson's ratio be on the occasion of conventional concrete compared with, the present invention prepare busting reinforcement concrete Poisson's ratio be
Negative value, so as to the absorbability to blast load is greatly improved, and largely keeps original structure not to be destroyed.
(3) present invention designed by Negative poisson's ratio, prepare have six rib concave inward structure of layer 2-4, eight rib concave inward structures,
Ten rib concave inward structures or 12 rib concave inward structures, using oriented and ordered closely spaced array, oriented and ordered interlayer array or oriented and ordered
Interlayer intersects the busting reinforcement concrete of mosaic array arrangement mode, and the minimum difference of the Poisson ratio with different structure unit can
Reach -0.14, -0.59, -0.71, -0.87.Compared with ordinary reinforced concrete, its storage modulus can maximum be respectively increased
152%th, 307%, 391%, 483%；So as to the ability that resists and absorb blast load energy is substantially improved, it is to avoid blast process
In directly release explosion product secondary injury is caused to building structure and its internal person property, so as to realizing to building structure and
Its internal personal safety as well as the property safety is protected to greatest extent.
Description of the drawings
Fig. 1 is the reinforcing bar hinge arrangement figure for possessing Negative poisson's ratio in the present invention, and Fig. 1 a are six rib concave inward structures, Fig. 1 b
It is ten rib concave inward structures for eight rib concave inward structures, Fig. 1 c, Fig. 1 d are 12 rib concave inward structures.
Fig. 2 is six rib concave inward structures, the schematic diagram of the reinforcing bar hinge Impact direction of eight rib concave inward structures.
Schematic diagrams of the Fig. 3 for shrinkage direction of the reinforcing bar hinge after the stress shown in Fig. 2.
Fig. 4 is the bar construction cell schematics using different reinforcing bar hinge arrangements；Fig. 4 a be regular reinforcement structure, Fig. 4 b
For six rib concave inward structures, Fig. 4 c are eight rib concave inward structures.
Fig. 5 is the perspective view of the armored concrete test block using different reinforcing bar hinge arrangements；Fig. 5 a are ordinary mortar
Concrete, Fig. 5 b are ordinary reinforced concrete, and Fig. 5 c are six rib indent armored concrete；Fig. 5 d are eight rib indent reinforced concretes
Soil.
Schematic diagrams of the Fig. 6 for three kinds of ordered arrangements of bar construction unit；Fig. 6 a be oriented and ordered closely spaced array, Fig. 6 b
For oriented and ordered interlayer array, Fig. 6 c are that oriented and ordered interlayer intersects mosaic array.
Specific embodiment
With reference to embodiment, the present invention is described further.
Embodiment 1：
There are the bar construction unit of Negative poisson's ratio, 2 layer reinforcing bar hinge of the bar construction unit by parallel arrangement
Chain is constituted, and interlamellar spacing is 100mm, and the reinforcing bar hinge is six rib concave inward structures, and circumscribed circle diameter is 100mm；The interior re-entrant angle
For β1=90 °, No. 10 hot rolling plain bars selected by the reinforcing bar.
There is the busting reinforcement concrete of Negative poisson's ratio, the busting reinforcement concrete is by having poured many of concrete
Individual above-mentioned bar construction unit composition.Each bar construction unit described also includes the fixed reinforcing bar of vertical direction, described in per layer
The plane of reinforcing bar hinge is vertical with fixed reinforcing bar；The direction of the interior re-entrant angle is consistent with the direction of propagation of blast load.Composition is anti-
It is that (special concave inward structure is complete ordering for oriented and ordered closely spaced array between the plurality of bar construction unit of quick-fried armored concrete
Arrangement shaped steel reinforced concrete), as shown in Figure 6 a.
There is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, the preparation method is precast framework method,
Comprise the following steps：
(1) prepare：According to the needs of bar construction unit, reinforcing bar is polished successively, bent and is cut；Reinforcing bar is polished
Concretely comprise the following steps：Reinforcing bar is polished smooth, to becoming rusty, reinforcing bar carries out simple processing of rust removing, facilitates experimental implementation.Bar bending
Concretely comprise the following steps：According to the form size and angle of the reinforcing bar hinge arrangement for designing, progressively curved using angle-bender
Required form.What reinforcing bar cut concretely comprises the following steps：Initial processing is carried out to the bar construction for having bent, redundance is cut.
(2) fixed：The reinforcing bar of well cutting is fixed as six rib concave inward structures, then 2 layer of six rib concave inward structure is fixed
To bar construction unit, finally by bar construction unit ordered arrangement, precast reinforced stay in place form is obtained；The reinforcing bar is fixed
Concretely comprise the following steps：Fix position when by the way of binding making the reinforcing bar of well cutting and pour in a mold；Intersection point is used
Iron wire is tied, and iron wire along button method, is first folded in half into during colligation and is buckled, then wear down reinforcing bar cross point, by ferrum using one side by this experiment
Silk two ends intersect, and are vised with pliers, rotate 2-3 circles, and length buckled by the iron wire for stretching out should be moderate, are easy to turn fast bundle less, and tied is same
When can also improve efficiency.
(3) paint：The surface-coated priming paint of the precast reinforced stay in place form prepared in step (2), strengthens interfacial adhesion
With deformation concertedness；The priming paint is epoxy resin primer.
(4) pour：According to the proportion design mixed concrete of concrete, and be poured into prepared by step (3) prefabricated
In bar construction template, maintenance is stood, the busting reinforcement concrete with Negative poisson's ratio is obtained.Wherein, the arrow shown in Fig. 5
Direction of the head direction for xoncrete structure bearing load.
Contrast test：Using regular reinforcement structure (square), each bar construction unit is respectively adopted layer 2-4, uses steel
Bar construction unit as shown in Figure 4 is made in muscle connection.Remaining condition is identical with above-mentioned busting reinforcement concrete.
In order to obtain the Poisson's ratio of the busting reinforcement concrete prepared according to said method, the application adopts following methods pair
Test block is detected.
(1) method of testing
Reference《Standard for test methods of mechanical properties of ordinary concrete》(GB/T50081-2002) common test block is resisted
The test of Compressive Strength.Employ full-automatic pressure testing machine to test this kind of test block.
In order to accurately measure the consecutive variations situation of test block shape after the load that is under pressure, test is using minimum loading
Speed is loaded, and test block loading speed is 0.1MPa/s, while loading, shoots the complete of test block loading using industrial camera
Process, until there is macroscopic failure in test block.
(2) testing procedure
1. the test block of maintenance to stipulated time is taken out from fog room, put it in electric drying oven with forced convection and dry directly
To constant weight, then take out, be cooled to room temperature.
2. first the test zone (side) of test block surface is uniformly sprayed pitch-dark, then sprayed with white spray painting is random
On pitch-dark surface, the purpose for so processing is for the ease of observation, to meet the needs of digital speckle method test.
3. to be painted parch after, test block is placed on the bearing plate of pressure testing machine, and ensures bearing plate and test block
The center superposition of compression face.
4. firing test machine, lower platen is slowly risen, and when test block is soon contacted with top board, adjustment knob is at a slow speed
Rise, to make board uniformly contact with test block compression face.
5. test parameter is set, starts to test after clearing, until test specimen produces macroscopic failure.And in the same of loading procedure
When, continuously to be taken pictures with industrial camera, each time period destroyed to test block not in the same time is recorded in real time.
6. data processing：Correlation analysiss are carried out using DSCM softwares (exploitation of engineering mechanics system of Tsing-Hua University).This method
The DSCM method that using correlation coefficient interpolation fit deficiency measure big strain displacement field in terms of compensate for a great extent,
Deformation of the concrete sample in the case of uniaxial compression can be studied, and the change of displacement field and strain field can be given simultaneously.
Embodiment 2：
As different from Example 1, the bar construction unit with Negative poisson's ratio, the bar construction unit is by putting down
3 layers of reinforcing bar hinge composition of row arrangement, interlamellar spacing is 50mm, and the concave inward structure circumscribed circle diameter is 120mm, the interior re-entrant angle
For β1=120 °, No. 12 waste heat treatment steel bars selected by the reinforcing bar.
There is the busting reinforcement concrete of Negative poisson's ratio, constitute the plurality of bar construction of busting reinforcement concrete
It is oriented and ordered interlayer array (special indent/ordinary construction level replaces ordered arrangement shaped steel reinforced concrete) between unit, such as
Shown in Fig. 6 b.
There is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, the priming paint that step (3) adopt is poly-
Phenol oxygen priming paint.
Embodiment 3：
As different from Example 1, the bar construction unit with Negative poisson's ratio, the bar construction unit is by putting down
4 layers of reinforcing bar hinge composition of row arrangement, interlamellar spacing is 30mm, and the concave inward structure circumscribed circle diameter is 130mm, the interior re-entrant angle
For β1=150 °, No. 14 cold rolled reinforcing steel bar with ribs selected by the reinforcing bar.
There is the busting reinforcement concrete of Negative poisson's ratio, constitute the plurality of bar construction of busting reinforcement concrete
It is that (special indent/ordinary construction ABA bars inlay arrangement steel bar coagulation to oriented and ordered interlayer intersection mosaic array between unit
Soil), as fig. 6 c.
There is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, the priming paint that step (3) adopt is for ammonia
Base alkyd base coat.
Embodiment 4：
As different from Example 1, the bar construction unit with Negative poisson's ratio, the bar construction unit is by putting down
3 layers of reinforcing bar hinge composition of row arrangement, the reinforcing bar hinge is eight rib concave inward structures, and interlamellar spacing is 50mm, the concave inward structure
Circumscribed circle diameter is 90mm, the indent angle beta2=100 °, No. 6 hot rolling plain bars selected by the reinforcing bar.
There is the busting reinforcement concrete of Negative poisson's ratio, the ordered arrangement is that oriented and ordered interlayer intersection inlays battle array
Row (special indent/ordinary construction ABA bars inlay arrangement shaped steel reinforced concrete), as fig. 6 c.
There is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, the priming paint that step (3) adopt is for zinc
Yellow polyurethane primer.
Embodiment 5：
As different from Example 4, the bar construction unit with Negative poisson's ratio, the bar construction unit is by putting down
2 layers of reinforcing bar hinge composition of row arrangement, interlamellar spacing is 90mm, and the concave inward structure circumscribed circle diameter is 110mm, the interior re-entrant angle
β2=120 °, No. 12 cold rolled reinforcing steel bar with ribs selected by the reinforcing bar.
There is the busting reinforcement concrete of Negative poisson's ratio, the ordered arrangement is that oriented and ordered interlayer array is (special
Indent/ordinary construction level replaces ordered arrangement shaped steel reinforced concrete), as shown in Figure 6 b.
There is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, the priming paint that step (3) adopt is for ferrum
Red alkyd primer.
Embodiment 6：
As different from Example 4, the bar construction unit with Negative poisson's ratio, the bar construction unit is by putting down
2 layers of reinforcing bar hinge composition of row arrangement, interlamellar spacing is 80mm, and the concave inward structure circumscribed circle diameter is 100mm, the interior re-entrant angle
β2=150 °, No. 12 cold rolled reinforcing steel bar with ribs selected by the reinforcing bar.
There is the busting reinforcement concrete of Negative poisson's ratio, the ordered arrangement is that oriented and ordered interlayer array is (special
Indent/ordinary construction level replaces ordered arrangement shaped steel reinforced concrete), as shown in Figure 6 b.
There is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, the priming paint that step (3) adopt is for ammonia
Base alkyd base coat.
Embodiment 7：
As different from Example 4, the bar construction unit with Negative poisson's ratio, the bar construction unit is by putting down
4 layers of reinforcing bar hinge composition of row arrangement, interlamellar spacing is 40mm, and the concave inward structure circumscribed circle diameter is 150mm, the interior re-entrant angle
β2=160 °, the reinforcing bar is from high rib reinforcements such as No. 10 hot-rolled strips.
There is the busting reinforcement concrete of Negative poisson's ratio, the ordered arrangement is that oriented and ordered closely spaced array is (special
Concave inward structure is complete ordering to arrange shaped steel reinforced concrete), as shown in Figure 6 a.
There is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, the priming paint that step (3) adopt is for third
Olefin(e) acid priming paint.
Embodiment 8：
As different from Example 1, the bar construction unit with Negative poisson's ratio, the bar construction unit is by putting down
2 layers of reinforcing bar hinge composition of row arrangement, the reinforcing bar hinge is the eight rib concave inward structures with interior re-entrant angle, and interlamellar spacing is 100mm,
The concave inward structure circumscribed circle diameter be 160mm, the indent angle beta3=110 °, the reinforcing bar is from high ribs such as No. 16 hot-rolled strips
Reinforcing bar.
There is the busting reinforcement concrete of Negative poisson's ratio, the ordered arrangement is that oriented and ordered closely spaced array is (special
Concave inward structure is complete ordering to arrange shaped steel reinforced concrete), as shown in Figure 6 a.
There is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, the priming paint that step (3) adopt is poly-
In urea priming paint.
Embodiment 9：
As different from Example 8, the bar construction unit with Negative poisson's ratio, the bar construction unit is by putting down
3 layers of reinforcing bar hinge composition of row arrangement, interlamellar spacing is 50mm, and the concave inward structure circumscribed circle diameter is 140mm, the interior re-entrant angle
β3=135 °, the reinforcing bar is from high rib reinforcements such as No. 12 hot-rolled strips.
There is the busting reinforcement concrete of Negative poisson's ratio, the ordered arrangement is that oriented and ordered interlayer array is (special
Indent/ordinary construction level replaces ordered arrangement shaped steel reinforced concrete), as shown in Figure 6 b.
There is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, the priming paint that step (3) adopt is for zinc
Yellow polyurethane primer.
Embodiment 10：
As different from Example 8, the bar construction unit with Negative poisson's ratio, the bar construction unit is by putting down
4 layers of reinforcing bar hinge composition of row arrangement, interlamellar spacing is 40mm, and the concave inward structure circumscribed circle diameter is 160mm, the interior re-entrant angle
β3=160 °, the reinforcing bar is from high rib reinforcements such as No. 16 hot-rolled strips.
There is the busting reinforcement concrete of Negative poisson's ratio, the ordered arrangement is that oriented and ordered interlayer array is (special
Indent/ordinary construction level replaces ordered arrangement shaped steel reinforced concrete), as fig. 6 c.
There is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, the priming paint that step (3) adopt is for ammonia
Base alkyd base coat.
Embodiment 11：
As different from Example 1, the bar construction unit with Negative poisson's ratio, the bar construction unit is by putting down
3 layers of reinforcing bar hinge composition of row arrangement, the reinforcing bar hinge is 12 rib concave inward structures, and interlamellar spacing is 50mm, the indent knot
Structure circumscribed circle diameter be 130mm, the indent angle beta4=110 °, the reinforcing bar is from high rib reinforcements such as No. 12 hot-rolled strips.
There is the busting reinforcement concrete of Negative poisson's ratio, the ordered arrangement is that oriented and ordered closely spaced array is (special
Concave inward structure is complete ordering to arrange shaped steel reinforced concrete), as shown in Figure 6 a.
There is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, the priming paint that step (3) adopt is for ammonia
Base alkyd base coat.
Embodiment 12：
As different from Example 11, the bar construction unit with Negative poisson's ratio, the bar construction unit by
4 layers of reinforcing bar hinge composition of parallel arrangement, interlamellar spacing is 35mm, and the concave inward structure circumscribed circle diameter is 90mm, the indent
Angle is β4=140 °, No. 6 hot rolling plain bars selected by the reinforcing bar.
There is the busting reinforcement concrete of Negative poisson's ratio, the ordered arrangement is that oriented and ordered interlayer array is (special
Indent/ordinary construction level replaces ordered arrangement shaped steel reinforced concrete), as shown in Figure 6 b.
There is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, the priming paint that step (3) adopt is for third
Olefin(e) acid priming paint.
Embodiment 13：
As different from Example 11, the bar construction unit with Negative poisson's ratio, the bar construction unit by
2 layers of reinforcing bar hinge composition of parallel arrangement, interlamellar spacing is 80mm, and the concave inward structure circumscribed circle diameter is 110mm, the indent
Angle is β4=170 °, the reinforcing bar is from high rib reinforcements such as No. 10 hot-rolled strips.
There is the busting reinforcement concrete of Negative poisson's ratio, the ordered arrangement is that oriented and ordered interlayer intersection inlays battle array
Row (special indent/ordinary construction ABA bars inlay arrangement shaped steel reinforced concrete), as fig. 6 c.
There is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, the priming paint that step (3) adopt is for ring
Oxygen resin primer.
The structural parameters and Poisson ratio of busting reinforcement concrete prepared by 1 embodiment 1-13 of table
Wherein, I, II, III are respectively oriented and ordered closely spaced array, oriented and ordered interlayer array, oriented and ordered interlayer and intersect
Mosaic array.
According to the result of above-described embodiment, the polygonal form of the axial symmetry of bar construction unit, the number of plies, interior re-entrant angle
There is important impact to the Poisson ratio of armored concrete in size, arrangement mode.Can be effectively real by controlling factors above
The Negative poisson's ratio of existing armored concrete.Additionally, the technological design equivalent of axial symmetry polygon layers spacing, reinforcing bar primer coating
Sample has greater significance to the explosion-proof performance of material.The construction unit and its arrangement mode of optimization design of the present invention, has filled up and has built
" negative poisson's ratio " design that material is built for explosion-proof, antiknock field is blank, with great actual application prospect.
Claims (10)
1. there is the bar construction unit of Negative poisson's ratio, it is characterised in that：N of the bar construction unit by parallel arrangement
Layer reinforcing bar hinge composition, the reinforcing bar hinge is the axial symmetry polygonized structure with interior re-entrant angle.
2. the bar construction unit with Negative poisson's ratio according to claim 1, it is characterised in that：The n=2-
4, interlayer distance is 30mm-150mm；The axial symmetry polygonized structure is six rib concave inward structures, eight rib concave inward structures, in ten ribs
Recessed structure or 12 rib concave inward structures.
3. the bar construction unit with Negative poisson's ratio according to claim 1 and 2, it is characterised in that：Described interior
Re-entrant angle size is respectively β1=90 ° -150 °, β2=100 ° -160 °, β3=110 ° -160 °, β4=110 ° -170 °；The reinforcing bar
The polygonal circumscribed circle diameter of the axial symmetry of construction unit is 90mm-160mm.
4. there is the busting reinforcement concrete of Negative poisson's ratio, it is characterised in that：The busting reinforcement concrete is by pouring
Multiple bar construction unit compositions of concrete；The bar construction unit is made up of the n-layer reinforcing bar hinge of parallel arrangement, described
Reinforcing bar hinge is the axial symmetry polygonized structure with interior re-entrant angle.
5. the busting reinforcement concrete with Negative poisson's ratio according to claim 4, it is characterised in that：The n=
2-4；Interlayer distance is 30mm-150mm；The axial symmetry polygonized structure is six rib concave inward structures, eight rib concave inward structures, ten ribs
Concave inward structure or 12 rib concave inward structures；The interior re-entrant angle is respectively β1=90-150 °, β2=100-160 °, β3=110-
160 °, β4=110-170 °；The polygonal circumscribed circle diameter of the axial symmetry of the bar construction unit is 90mm-160mm.
6. the busting reinforcement concrete with Negative poisson's ratio according to claim 1, it is characterised in that：Composition is explosion-proof
The plurality of bar construction unit of armored concrete is distributed as ordered arrangement in concrete substrate；The ordered arrangement is
Oriented and ordered closely spaced array, oriented and ordered interlayer array, oriented and ordered interlayer intersect the one kind in mosaic array.
7. the busting reinforcement concrete with Negative poisson's ratio according to claim 4, it is characterised in that：Described each
Bar construction unit also includes the fixed reinforcing bar of vertical direction, and the plane of per layer of reinforcing bar hinge is vertical with fixed reinforcing bar；Institute
The direction for stating interior re-entrant angle is consistent with the direction of propagation of blast load.
8. there is the preparation method of the busting reinforcement concrete of Negative poisson's ratio, it is characterised in that：The preparation method is pre-
Skeleton method processed, comprises the following steps：(1) prepare：According to the needs of reinforcing bar hinge, reinforcing bar is polished successively, bent and is cut
Cut；(2) fixed：The reinforcing bar of well cutting is fixed as the axial symmetry polygonized structure with interior re-entrant angle, n-layer is had indent then
The axial symmetry polygonized structure at angle is fixed and obtains bar construction unit, finally by bar construction unit ordered arrangement, is obtained prefabricated
Bar construction template；(3) paint：The surface-coated priming paint of the precast reinforced stay in place form prepared in step (2), strengthens interface attached
Put forth effort and deformation concertedness；(4) pour：According to the proportion design mixed concrete of concrete, and it is poured into step (3) system
In standby precast reinforced stay in place form, maintenance is stood, the busting reinforcement concrete with Negative poisson's ratio is obtained.
9. the preparation method of the busting reinforcement concrete with Negative poisson's ratio according to claim 6, its feature exist
In：The priming paint is epoxy resin primer, poly phenol oxygen priming paint, alkyd amino base coat, zinc yellow polyurethane primer, iron red alcohol acid
One or more in resin primer, alkyd amino base coat, acrylic primer, polyureas priming paint.
10. the preparation method of the busting reinforcement concrete with Negative poisson's ratio according to claim 6, its feature exist
In：The reinforcing bar is the high rib reinforcements such as hot rolling plain bar, hot-rolled strip crescent moon rib reinforcement, hot-rolled strip, waste heat treatment steel bar, steel strand
One or more in line, cold rolled reinforcing steel bar with ribs, cold drawn bar, cold drawn wire, cold-rolled torsion steel bar；Model 6,8,10,12,
14th, 16,18,20,22,24,28, one or more in 32mm.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854659A (en) * | 2019-03-08 | 2019-06-07 | 哈尔滨工程大学 | A kind of buffering vibration suppression structure having both indent and chiral Negative poisson's ratio |
| CN110041019A (en) * | 2019-05-10 | 2019-07-23 | 南京工业大学 | Preparation method of concrete material embedded with negative Poisson's ratio foam |
| CN111003959A (en) * | 2019-10-25 | 2020-04-14 | 青岛理工大学 | Anti-knock and anti-impact multi-stage heterogeneous fiber prefabricated body composite concrete and preparation method thereof |
| WO2021057940A1 (en) * | 2019-09-27 | 2021-04-01 | 何满潮 | Npr spiral reinforcing bar |
| CN113153073A (en) * | 2021-04-19 | 2021-07-23 | 福建厚德节能科技发展有限公司 | Evaporate and press waterproof windowsill of aerated concrete |
| CN113816676A (en) * | 2021-09-06 | 2021-12-21 | 青岛理工大学 | Negative Poisson's ratio cement-based composite material and preparation method thereof |
| CN114703904A (en) * | 2022-03-12 | 2022-07-05 | 北京工业大学 | Lamb wave-based concave hexagonal section seismic metamaterial structure |
| US11873637B2 (en) | 2022-02-15 | 2024-01-16 | Joon Bu Park | Bricks exhibiting negative Poisson's ratio |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999027210A1 (en) * | 1997-11-21 | 1999-06-03 | Cerovsky Jaromil | Structural core of the three-dimensional concrete reinforcing mat and method of its fabrication |
| CN102717542A (en) * | 2012-06-29 | 2012-10-10 | 大连理工大学 | Bulletproof sandwich plate |
| CN102720785A (en) * | 2012-05-29 | 2012-10-10 | 北京航空航天大学 | Internally hollow metal rubber vibration isolator with negative Poisson's ratio characteristic |
| CN204509989U (en) * | 2015-03-05 | 2015-07-29 | 长安大学 | A kind of expansion gap device of negative poisson ' s ratio honeycomb structure |
| CN105081289A (en) * | 2015-08-28 | 2015-11-25 | 清华大学 | Compound insulation material plate |
| CN105965930A (en) * | 2016-06-20 | 2016-09-28 | 苏州芳磊蜂窝复合材料有限公司 | Preparing method for inner hexagon negative poisson ratio honeycomb |
-
2016
- 2016-11-07 CN CN201610971051.8A patent/CN106499121B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999027210A1 (en) * | 1997-11-21 | 1999-06-03 | Cerovsky Jaromil | Structural core of the three-dimensional concrete reinforcing mat and method of its fabrication |
| CN102720785A (en) * | 2012-05-29 | 2012-10-10 | 北京航空航天大学 | Internally hollow metal rubber vibration isolator with negative Poisson's ratio characteristic |
| CN102717542A (en) * | 2012-06-29 | 2012-10-10 | 大连理工大学 | Bulletproof sandwich plate |
| CN204509989U (en) * | 2015-03-05 | 2015-07-29 | 长安大学 | A kind of expansion gap device of negative poisson ' s ratio honeycomb structure |
| CN105081289A (en) * | 2015-08-28 | 2015-11-25 | 清华大学 | Compound insulation material plate |
| CN105965930A (en) * | 2016-06-20 | 2016-09-28 | 苏州芳磊蜂窝复合材料有限公司 | Preparing method for inner hexagon negative poisson ratio honeycomb |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854659A (en) * | 2019-03-08 | 2019-06-07 | 哈尔滨工程大学 | A kind of buffering vibration suppression structure having both indent and chiral Negative poisson's ratio |
| CN110041019A (en) * | 2019-05-10 | 2019-07-23 | 南京工业大学 | Preparation method of concrete material embedded with negative Poisson's ratio foam |
| WO2021057940A1 (en) * | 2019-09-27 | 2021-04-01 | 何满潮 | Npr spiral reinforcing bar |
| CN111003959A (en) * | 2019-10-25 | 2020-04-14 | 青岛理工大学 | Anti-knock and anti-impact multi-stage heterogeneous fiber prefabricated body composite concrete and preparation method thereof |
| CN113153073A (en) * | 2021-04-19 | 2021-07-23 | 福建厚德节能科技发展有限公司 | Evaporate and press waterproof windowsill of aerated concrete |
| CN113153073B (en) * | 2021-04-19 | 2022-12-06 | 福建厚德节能科技发展有限公司 | Evaporate and press waterproof windowsill of aerated concrete |
| CN113816676A (en) * | 2021-09-06 | 2021-12-21 | 青岛理工大学 | Negative Poisson's ratio cement-based composite material and preparation method thereof |
| CN113816676B (en) * | 2021-09-06 | 2022-05-31 | 青岛理工大学 | Negative Poisson's ratio cement-based composite material and preparation method thereof |
| US11873637B2 (en) | 2022-02-15 | 2024-01-16 | Joon Bu Park | Bricks exhibiting negative Poisson's ratio |
| US12116778B2 (en) | 2022-02-15 | 2024-10-15 | Joon Bu Park | Bricks exhibiting negative Poisson's ratio |
| CN114703904A (en) * | 2022-03-12 | 2022-07-05 | 北京工业大学 | Lamb wave-based concave hexagonal section seismic metamaterial structure |
| CN114703904B (en) * | 2022-03-12 | 2023-12-22 | 北京工业大学 | Concave hexagonal section earthquake metaplasia structure based on lamb wave |
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