CN105856393A - Die for pouring semi-embedded concrete as well as manufacturing and pouring methods of die - Google Patents
Die for pouring semi-embedded concrete as well as manufacturing and pouring methods of die Download PDFInfo
- Publication number
- CN105856393A CN105856393A CN201610240858.4A CN201610240858A CN105856393A CN 105856393 A CN105856393 A CN 105856393A CN 201610240858 A CN201610240858 A CN 201610240858A CN 105856393 A CN105856393 A CN 105856393A
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- hole
- electrode
- bed die
- middle mold
- die
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
Abstract
The invention discloses a die for pouring semi-embedded concrete as well as manufacturing and pouring methods of the die, belonging to the technical field of reinforced concrete structural member monitoring. The die comprises a bottom die, a middle die arranged on the bottom die and a top die used for fixing the middle die on the bottom die, wherein a plurality of first locating holes are uniformly distributed on in the upper surface of the bottom die; the middle die is a two-piece longitudinal-symmetry hollow ring bodyof two pieces of symmetric hollow ring bodies, a plurality of electrode locating holes are uniformly distributed in the inner walls of the cavities of the ring bodiesinner wall of the cavity of the ring body, and threading holes are formed in the middles of the electrode locating holes; a plurality of second locating holes are formed in the upper surface of the middle die; and a plurality of third locating holes which are through holes are uniformly formed in the top die. Compared with the prior art, a sensor poured by using the die has the advantages that the performance change of a building material in a fire happening process can be integrally saved once a fire happens, and the collected data are is more effective and reliable; and the die is simple in structure, stable in performance, low in cost and suitable for wide application in civil engineering.
Description
Technical field
The present invention relates to reinforced concrete structures and be good for monitoring technical field, a kind of mould pouring half embedded type concrete
And manufacture method and casting method.
Background technology
Xoncrete structure is the civil engineering structure having a large capacity and a wide range, and can suffer from earthquake, typhoon, collision etc. in the period used dynamic
Power catastrophe effect, causes structural damage.Carry out structure detection the most timely and accurately most important for structural repair optimal decision.
At present, there is a lot of structure partial damage detecting method, as ultrasonic method, acoustic emission, infrared thermal imagery method, rebound method, isotope are visited
Survey methods etc., these detection methods are disadvantageous in that: (1) can only qualitative detection, it is impossible to provide inside configuration real stress letter
Breath；(2) detection poor in timeliness, it is impossible to draw structural damage evolutionary process；(3) equipment is heavy, cost is high.
In order to obtain the stress information of the inside in concrete structure power damage process, the most effective method is exactly in structure
Key position such as bean column node region embedment strain gauge.Generally, there is dynamically sound in resistance strain gauge force transducer
Should delayed, shortcoming that service life is short；Piezoresistive force sensor complex manufacturing technology, cost are high；Capacitive force transducer exports
Characteristic non-linear more serious, certainty of measurement is low；The piezo-electric type dynamic stress sensor technology measuring dynamic stress is the most ripe,
Can be made into the sensor embedment inside configuration of small volume, but this kind of sensor outer housing is made of metal, and significantly changes point position
Local influence Anlysis and affect certainty of measurement, and poor compatibility between sensor and concrete, enter nonlinear phase circle at concrete
Can be easily separated inefficacy at face, the most this kind of sensor generally use quartz material as sensing element, expensive, be difficult at soil
Large-scale popularization in wood engineering structure.
At present, embedded type concrete damage sensing element mainly has cement base piezoelectric ceramic sense element and cement base piezoelectric multiple
Condensation material two ways.The Zhao Xiao swallow thesis for the doctorate of Dalian University of Technology " examine by monitoring structural health conditions based on piezoelectric ceramics and damage
Disconnected " in the cement base piezoelectric ceramic sense element that is previously mentioned, its weak point is that cement mortar used by (1) is at xoncrete structure high pressure
Easily ftracture under stress level, cause internal piezoelectric ceramic piece to damage, be not suitable for the position of dynamic damage process monitoring (2) piezoelectric patches
Can not be guaranteed, Stress Transfer path is uncertain；(3) it is not easy vibration compacting；University Of Ji'nan's Huang generation peak is at composite journal
On the 1-3 type cement base piezoelectric mentioned in " performance of 1-3 type cement base piezoelectric composite material sensor " literary composition of delivering be combined
Material sensing element processing technology is more complicated, cost is high.
Summary of the invention
In order to solve in prior art, half buried electrode location is inaccurate, is unfavorable for timely and accurately building being carried out structure
The shortcoming of detection, the invention provides a kind of mould pouring half embedded type concrete and manufacture method and casting method.
A kind of mould pouring half embedded type concrete, includes bed die, the middle mold being placed on bed die, and middle mold is fixed
Backform on bed die；Bed die upper surface is evenly distributed with some first holes, location, and the first hole, location includes through hole and half-via,
Two through holes are one group, and two half-vias are one group, and two groups of location spans are uniformly distributed；Middle mold is the sky that upper and lower two panels is symmetrical
Thimble body, ring body cavity inner wall is evenly distributed with some positioning of electrode holes, and the middle part in positioning of electrode hole is provided with break-through cavity inner wall
Through wires hole；The upper surface of middle mold is evenly distributed with some second holes, location, and the second hole, location is through hole；It is uniformly arranged on backform
Having several holes, the 3rd location, the 3rd hole, location is through hole, and the position of through hole is corresponding with the lead to the hole site of bed die.
Further, bed die is overall in boss shape, upper plate stack mutually with lower shoe and form, and described upper plate is annulus
Shape, lower shoe is the plectane that radius is more than upper plate, and described first hole, location is respectively positioned on the annulus upper surface of upper plate；In described
Mould is annular, the middle part of described positioning of electrode pore size distribution cavity inner wall；Described backform is flat plectane, is placed in middle mold
On.
Further, the external diameter of bed die lower shoe is 220-240mm, and the external diameter of upper plate is 200-220mm, lower shoe interior
Footpath is consistent with the internal diameter of upper plate；The cavity internal diameter of middle mold is 90-100mm, and external diameter is 110-120mm, and thickness is
25-35mm；A diameter of 110-120mm of backform, thickness is 8-12mm.
Further, positioning of electrode hole is rectangle, and width is 18-22mm, and the degree of depth is 18-22mm, and quantity is 16；Wear
A diameter of 4-6mm of string holes.
Further, being provided with the electrode with cable in positioning of electrode hole, cable is connected through through wires hole with electrode, electrode
Shape match with positioning of electrode hole, a length of 36-44mm.
Further, bed die, the material of middle mold and backform is Q235 steel.
A kind of manufacture method of the mould for pouring half embedded type concrete, manufacture method includes:
A. processing bed die, being overlapped in the center of circle of upper plectane and lower plectane stacks, and is uniformly drilled with through hole and half-via at bed die upper surface；
B. process middle mold, middle mold cavity inner wall is uniformly offered some positioning of electrode holes, is drilled with threading at the middle part in positioning of electrode hole
Hole, the upper surface in middle mold uniformly gets out some through holes；
C. processing backform, uniformly get out several through holes on backform, the position of through hole is corresponding with the lead to the hole site of bed die；
D. machined electrode, impregnates the glue mass ratio according to 2:1 by carbon cloth adhesive glue host dipping glue and firming agent, and mixing is stirred
Mixing 2 minutes, pour in the cube module being embedded with electrode slice, condense hardening 24h, electrode fabrication completes.
A kind of casting method of the mould for pouring half embedded type concrete, method includes:
A. place bed die, bed die is lain against on horizontal plane；
B., middle mold is installed, middle mold is lain against the surface of bed die, make the through hole of middle mold overlap with the through hole of bed die, by bolt
Correspondence is threaded onto in through hole, tights a bolt, and middle mold and bed die is integrally fixed；
C., electrode is installed, electrode correspondence is installed in the positioning of electrode hole on middle mold inwall, fixing；
D. installing backform, backform lies against the surface of middle mold, the through hole of backform overlaps with the through hole of middle mold, by bolt pair
Should be fixed in all of through hole, tight a bolt, backform, middle mold and bed die are integrally fixed；
E. pour, by concrete by pouring hole reserved on backform pours；
F. molding, after concreting completes and reaches the striking time of regulation, first removes backform, then removes middle mold, finally move
Walk bed die.
Compared to the prior art the present invention, has an advantage in that:
1. the mould of the present invention decreases procedure of processing, shortens skilled worker's cycle of mould, improves efficiency, saves material, structure
Simply, stable performance, with low cost, it is adaptable to the extensive application in civil engineering.
2. electrode can be embedded in desired location in concrete by the mould of the present invention pours out sensor the most in advance, collects
Data are more effectively reliable；Its structure has preferable comprcssive strength, it is possible to dramatically increase service life, reduces concrete and passes
The replacing number of times of sensor, it is to avoid trouble unnecessary in building monitoring, can intactly preserve in fire process after breaking out of fire
Construction material performance change in fire generating process, data are more effectively reliable.
3. the method step of the present invention is simple, it is easy to operation, time-consuming, can be widely applied in civil engineering detection.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of bed die of the present invention；
Fig. 2 is the main TV structure schematic diagram of bed die of the present invention；
Fig. 3 be middle mold up/down sheet of the present invention look up structural representation；
Fig. 4 is the plan structure schematic diagram of middle mold up/down sheet of the present invention；
Fig. 5 is the main TV structure schematic diagram of middle mold of the present invention；
Fig. 6 is the plan structure schematic diagram of backform of the present invention；
Fig. 7 is the main TV structure schematic diagram of backform of the present invention；
In figure, 1, bed die, 2, through hole, 3, half-via, 4, upper plate, 5, lower shoe, the 6, first hole, location, 7, in
Mould, the 8, second hole, location, 9, positioning of electrode hole, 10, through wires hole, 11, backform.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with specifically
Embodiment, is expanded on further the present invention.
A kind of mould pouring half embedded type concrete, includes passive bed die 1, the middle mold 7 being placed on bed die 1,
And the backform 11 that middle mold 7 is fixed on bed die 1.
Bed die 1 boring, bed die 1 entirety is boss shape, upper plate 4 stack mutually with lower shoe 5 and form, and upper plate 4 is annulus
Shape, lower shoe 5 is more than the plectane of upper plate for radius, and upper plate 4 upper surface is evenly distributed with some first holes 6, location, and first is fixed
Hole 6, position includes through hole 2 and half-via 3, and two through holes 2 are one group, and two half-vias 3 are one group, and two group first to position span equal
Even distribution.
The annular that middle mold 7 is symmetrical in upper and lower two panels, for hollow ring body, cavity inner wall is evenly distributed with some positioning of electrode holes 9,
Positioning of electrode hole 9 is distributed the middle part of cavity inner wall；The middle part in positioning of electrode hole 9 is provided with threading 10 hole of break-through cavity inner wall；
Being provided with the electrode with cable in positioning of electrode hole 9, cable is connected through through wires hole 10 with electrode.The upper surface of middle mold 7 is equal
Even be distributed some second location hole 8, second location hole 8 be through hole.
Being evenly arranged with several holes 6, the 3rd location on backform 11, the 3rd hole 6, location is through hole, and the position of through hole is logical with bed die 1
Position, hole 2 is corresponding.Backform 11 is flat plectane, is placed in middle mold 7.
As optimize, the external diameter of bed die 1 lower shoe 5 is 220-240mm, and the external diameter of upper plate 4 is 200-220mm, lower shoe
The internal diameter of 5 is consistent with the internal diameter of upper plate 4；The cavity internal diameter of middle mold 7 is 90-100mm, and external diameter is 110-120mm, thickness
For 25-35mm；A diameter of 110-120mm of backform 11, thickness is 8-12mm.
As optimize, positioning of electrode hole 9 is rectangle, and width is 18-22mm, and the degree of depth is 18-22mm, and quantity is 16；
A diameter of 4-6mm of through wires hole 10.
As optimize, the shape of electrode matches with positioning of electrode hole 9, a length of 36-44mm.
As optimize, bed die 1, the material of middle mold 7 and backform 11 is Q235 steel.
The manufacture method of a kind of mould pouring half embedded type concrete includes:
A. bed die is processed.Shape is identical, and upper plate and the center of circle of lower shoe that internal diameter size is more or less the same overlap and stack, with circle
Heart array, is uniformly drilled with hole, location at bed die upper surface, and hole, location includes through hole and half-via, and two through holes are one group, two
Half-via is one group, and two groups of location spans are uniformly distributed；
B. middle mold is processed.With the center of circle array of middle mold, middle mold cavity inner wall is uniformly offered some positioning of electrode holes, at electrode
The middle part in hole, location is drilled with through wires hole；With the center of circle array of middle mold, the upper surface in middle mold uniformly gets out some through holes；
C. backform is processed.Uniformly getting out several through holes on backform, the position of through hole is corresponding with the lead to the hole site of bed die；
D. machined electrode.By carbon cloth adhesive glue host dipping glue and the mass ratio of firming agent dipping glue proportionally 2:1,
Mix and blend 2 minutes, pours in the cube module being embedded with electrode slice, condenses hardening 24h, and electrode fabrication completes.
A kind of method of mould pouring half embedded type concrete includes:
A. place bed die, bed die is lain against on horizontal plane；
B., middle mold is installed, middle mold is lain against the surface of bed die, make the through hole of middle mold overlap with the through hole of bed die, by bolt
Correspondence is threaded onto in through hole, tights a bolt, and middle mold and bed die is integrally fixed；
C., electrode is installed, electrode correspondence is installed in the positioning of electrode hole on middle mold inwall, fixing；
D. installing backform, backform lies against the surface of middle mold, the through hole of backform overlaps with the through hole of middle mold, by bolt pair
Should be fixed in all of through hole, tight a bolt, backform, middle mold and bed die are integrally fixed；
E. pouring, normal silicate 42.5R cement, normal sand is according to design mixture proportion, after blender stirring stirring completes, and will
The concrete of new stirring is by pouring in pouring hole reserved on backform；
F. molding, after concreting completes, the test block that this mould used is poured, it is placed on the temperature of 20 ± 3 DEG C with relative
Form removal after maintenance 2 days in the humid air of humidity more than 90%, form removal order: first remove backform, then remove middle mold, finally remove
Bed die.
Sensor comprcssive strength detects: concrete mold and commercially available A, B concrete mold that use this law is bright pour sensing simultaneously
Device, used by pour material, proportioning the most identical, the Transducers Embedded in Concrete 10cm degree of depth under room temperature, with under the conditions of carry out comprcssive strength detection,
Parallel 5 groups, wherein, the sensor comprcssive strength that the mould of the present invention pours be 52.3MPa, A sensor be 38.3MPa, B pass
Sensor is 35.1MPa.
Pour the operation principle of the mould of half embedded type concrete: be embedded in advance in xoncrete structure by electrode, after concrete setting,
Be embedded in building bears the positions such as post, when structure is by external impetus load action, according to piezoelectric effect, piezoelectric ceramics
Polarised direction vertical before and after surface can produce equivalent and the most contrary electric charge, the quantity of electric charge is directly proportional to shear stress, and this is electric
Lotus is converted into voltage signal by charge amplifier, and is stored in computer by voltage signal by corresponding signal acquiring system,
Utilize the sensitivity coefficient between the sensor voltage of dynamic load experimental calibration and stress section stress, thus can realize coagulation
The shear stress of soil structure whole dynamic damage process is monitored.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme and unrestricted, although ginseng
According to preferred embodiment, the present invention is described in detail, it will be understood by those within the art that, can be to the present invention's
Technical scheme is modified or equivalent, and without deviating from the spirit and scope of technical solution of the present invention, it all should be contained at this
In the middle of the right of invention.
Claims (8)
1. the mould pouring half embedded type concrete, it is characterised in that include bed die, the middle mold being placed on bed die,
And the backform that middle mold is fixed on bed die；
Described bed die upper surface is evenly distributed with some first holes, location, and described first hole, location includes through hole and half-via, two
Described through hole is one group, and two described half-vias are one group, and two groups of location spans are uniformly distributed；
Described middle mold is the hollow ring body that upper and lower two panels is symmetrical, and ring body cavity inner wall is evenly distributed with some positioning of electrode holes, institute
The middle part stating positioning of electrode hole is provided with the through wires hole of break-through cavity inner wall；It is fixed that the upper surface of described middle mold is evenly distributed with some second
Hole, position, described second hole, location is through hole；
Be evenly arranged with on described backform several the 3rd location hole, described 3rd location hole be through hole, the position of described through hole with
The lead to the hole site of described bed die is corresponding.
A kind of mould pouring half embedded type concrete the most according to claim 1, it is characterised in that bed die is overall in convex
Platform shape, is stacked mutually with lower shoe by upper plate and forms, and described upper plate is annular, and lower shoe is that radius is more than upper plate
Plectane, described first hole, location is respectively positioned on the annulus upper surface of upper plate；Described middle mold is annular, described positioning of electrode hole
The middle part of distribution cavity inner wall；Described backform is flat plectane, is placed in middle mold.
A kind of mould pouring half embedded type concrete the most according to claim 1, it is characterised in that described bed die is gone to the bottom
The external diameter of plate is 220-240mm, and the external diameter of upper plate is 200-220mm, and the internal diameter of lower shoe is consistent with the internal diameter of upper plate；
The cavity internal diameter of described middle mold is 90-100mm, and external diameter is 110-120mm, and thickness is 25-35mm；Described backform a diameter of
110-120mm, thickness is 8-12mm.
A kind of mould pouring half embedded type concrete the most according to claim 1, it is characterised in that described positioning of electrode hole
For rectangle, width is 18-22mm, and the degree of depth is 18-22mm, and quantity is 16；A diameter of 4-6mm of described through wires hole.
A kind of mould pouring half embedded type concrete the most according to claim 1, it is characterised in that described positioning of electrode hole
In the electrode with cable is installed, cable is connected with electrode through through wires hole, and the shape of electrode matches with positioning of electrode hole,
A length of 36-44mm.
A kind of mould pouring half embedded type concrete the most according to claim 1, it is characterised in that described bed die, middle mold
It is Q235 steel with the material of backform.
7. the manufacture method for mould described in any one of claim 1-6, it is characterised in that described manufacture method includes:
A. processing bed die, being overlapped in the center of circle of upper plectane and lower plectane stacks, and is uniformly drilled with through hole and half-via at bed die upper surface；
B. process middle mold, middle mold cavity inner wall is uniformly offered some positioning of electrode holes, is drilled with threading at the middle part in positioning of electrode hole
Hole, the upper surface in middle mold uniformly gets out some through holes；
C. processing backform, uniformly get out several through holes on backform, the position of through hole is corresponding with the lead to the hole site of bed die；
D. machined electrode, impregnates the glue mass ratio according to 2:1 by carbon cloth adhesive glue host dipping glue and firming agent, and mixing is stirred
Mixing 2 minutes, pour in the cube module being embedded with electrode slice, condense hardening 24 hours, electrode fabrication completes.
8. the casting method for mould described in any one of claim 1-6, it is characterised in that described method includes:
A. place bed die, bed die is lain against on horizontal plane；
B., middle mold is installed, middle mold is lain against the surface of bed die, make the through hole of middle mold overlap with the through hole of bed die, by bolt
Correspondence is threaded onto in through hole, tights a bolt, and middle mold and bed die is integrally fixed；
C., electrode is installed, electrode correspondence is installed in the positioning of electrode hole on middle mold inwall, fixing；
D. installing backform, backform lies against the surface of middle mold, the through hole of backform overlaps with the through hole of middle mold, by bolt pair
Should be fixed in all of through hole, tight a bolt, backform, middle mold and bed die are integrally fixed；
E. pour, by concrete by pouring hole reserved on backform pours；
F. molding, after concreting completes and reaches the striking time of regulation, first removes backform, then removes middle mold, finally move
Walk bed die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610240858.4A CN105856393B (en) | 2016-04-19 | 2016-04-19 | A kind of mould for pouring half embedded type concrete and manufacture method and casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610240858.4A CN105856393B (en) | 2016-04-19 | 2016-04-19 | A kind of mould for pouring half embedded type concrete and manufacture method and casting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105856393A true CN105856393A (en) | 2016-08-17 |
| CN105856393B CN105856393B (en) | 2017-11-24 |
Family
ID=56633396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610240858.4A Expired - Fee Related CN105856393B (en) | 2016-04-19 | 2016-04-19 | A kind of mould for pouring half embedded type concrete and manufacture method and casting method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105856393B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002210717A (en) * | 2001-01-17 | 2002-07-30 | Sumitomo Metal Mining Co Ltd | Method for manufacturing ceramic molding |
| CN101144790A (en) * | 2007-09-14 | 2008-03-19 | 哈尔滨工业大学 | All-solid reference electrode for monitoring steel bar corrosion of concrete and its preparation method |
| US20130089466A1 (en) * | 2010-08-18 | 2013-04-11 | Life Technologies Corporation | Chemical Coating of Microwell for Electrochemical Detection Device |
| CN203031736U (en) * | 2013-02-01 | 2013-07-03 | 枣庄市市政工程总公司 | Ring fan-shaped cement concrete squeezing brick mold |
| CN104111131A (en) * | 2014-04-22 | 2014-10-22 | 深圳大学 | Reinforced concrete structure stress in situ online monitoring method |
| CN104827550A (en) * | 2015-05-13 | 2015-08-12 | 中南大学 | Precracking rebar concrete sample molding die and sample molding method |
| CN104883092A (en) * | 2015-06-19 | 2015-09-02 | 清华大学 | Road-use cement-based material pressure power generation packaging structure |
| CN205614809U (en) * | 2016-04-19 | 2016-10-05 | 济南大学 | Pour mould of formula of partly buryying concrete |
-
2016
- 2016-04-19 CN CN201610240858.4A patent/CN105856393B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002210717A (en) * | 2001-01-17 | 2002-07-30 | Sumitomo Metal Mining Co Ltd | Method for manufacturing ceramic molding |
| CN101144790A (en) * | 2007-09-14 | 2008-03-19 | 哈尔滨工业大学 | All-solid reference electrode for monitoring steel bar corrosion of concrete and its preparation method |
| US20130089466A1 (en) * | 2010-08-18 | 2013-04-11 | Life Technologies Corporation | Chemical Coating of Microwell for Electrochemical Detection Device |
| CN203031736U (en) * | 2013-02-01 | 2013-07-03 | 枣庄市市政工程总公司 | Ring fan-shaped cement concrete squeezing brick mold |
| CN104111131A (en) * | 2014-04-22 | 2014-10-22 | 深圳大学 | Reinforced concrete structure stress in situ online monitoring method |
| CN104827550A (en) * | 2015-05-13 | 2015-08-12 | 中南大学 | Precracking rebar concrete sample molding die and sample molding method |
| CN104883092A (en) * | 2015-06-19 | 2015-09-02 | 清华大学 | Road-use cement-based material pressure power generation packaging structure |
| CN205614809U (en) * | 2016-04-19 | 2016-10-05 | 济南大学 | Pour mould of formula of partly buryying concrete |
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| Publication number | Publication date |
|---|---|
| CN105856393B (en) | 2017-11-24 |
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Granted publication date: 20171124 Termination date: 20190419 |