CN109696149A - A kind of early age deformation measuring device of armored concrete and measurement method - Google Patents
A kind of early age deformation measuring device of armored concrete and measurement method Download PDFInfo
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- CN109696149A CN109696149A CN201910129918.9A CN201910129918A CN109696149A CN 109696149 A CN109696149 A CN 109696149A CN 201910129918 A CN201910129918 A CN 201910129918A CN 109696149 A CN109696149 A CN 109696149A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
Abstract
The present invention relates to a kind of early age deformation measuring device of armored concrete and measurement methods, for realizing the deformation measurement of armored concrete early age, the limitation of contactless experimental method as defined in standardizing is compensated for, operating principle is easily understood, and can both measure, can also be measured with mould with demoulding；Wherein device side plate (12), end plate (13) rigidity are larger, are not easy to be influenced by test piece deformation；Specimen molding on stable bottom plate (11), can make experiment be chronically at stable state；And wherein involved steel reinforcement cage, can more accurately ensure that position of the elongated reinforcing bar in test specimen cross section with steel bar fixing support；Whole device structure is simple, and convenient disassembly, good integrity, recyclability is strong, low in cost, and measurement method is easy to implement.
Description
Technical field
The present invention relates to a kind of early age deformation measuring device of armored concrete and measurement methods, belong to concrete early stage change
Shape field of measuring technique.
Background technique
Concrete structure age morning due to being influenced by factors such as contraction distortions, often will appear crack, crack will be tight
The globality and durability of concrete structure are influenced again.The test method for carrying out concrete shrinkage deformation both at home and abroad at present is many
It is more, it can be divided mainly into direct test method and indirect test method, direct test method includes volumetric method and length method, common
Method for testing length it is different according to sensor placement location when test, be divided into non-contact type measuring method and contact type measurement method.
The damage of early concrete and test probe are tried with concrete because non-contact measuring method can avoid contact with formula sensor
It is widely used between part there may be relative displacement, this method is frequently with eddy current displacement sensor and laser displacement sensor
Deng progress deformation data acquisition.But current major applications eddy current displacement sensor does the experiment of non-contact measurement only office
It is limited to plain concrete material, this is with armored concrete mixing material in engineering practice using different.Due to armored concrete
Between interaction, influence of the presence of reinforcing bar to concrete shrinkage deformation can not ignore, therefore study armored concrete
Contraction distortion it is significant.It is relatively fewer about armored concrete deformation measurement experimental rig and method at present.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of early age deformation measuring devices of armored concrete, using complete
New construction design convenient, efficiently can be directed to armored concrete and realize deformation measurement, improve measurement working efficiency.
In order to solve the above-mentioned technical problem the present invention uses following technical scheme: the present invention devises a kind of armored concrete
Early age deformation measuring device, including test piece mould, data acquisition device connect built-in fitting with standard target；Wherein, test specimen mould
The cuboid box body that tool is made of plurality of plates moving jointing, fixes for armored concrete test specimen early stage forming and test specimen position；
Data acquisition device includes standard target, displacement sensor probe, data collecting instrument host；
Wherein, standard target connection built-in fitting includes standard target absorption end, test specimen connection built-in fitting；It includes spiral shell that standard target, which adsorbs end,
Adjusting screw and sheet metal；It includes copper post that test specimen, which connects built-in fitting,；Standard target absorption end connects built-in fitting with test specimen and is located at examination
On the outside of part mold cuboid box body and inside, wherein wherein one end of copper post is detachable to butt up against test piece mould cuboid box
The center of internal portion wherein one end end face, and straight line and test piece mould cuboid box body both ends of the surface center where copper post
Straight line where line is mutually conllinear, and the center setting of test piece mould cuboid tray interior other end is through interior or exterior space
Through-hole, the internal diameter of the through-hole are greater than the outer diameter of screw, wherein one end of the detachable docking screw of the other end of copper post, copper
Straight line is mutually conllinear with straight line where screw where column, and the other end of screw passes through on test piece mould cuboid box body end face
Through-hole, to exterior space, and screw is not in contact with the inner wall of the through-hole, and standard target adsorbs in end in foil surfaces
The activity of heart position is docked on the other end of screw；Standard target is detachable to be adsorbed in standard target absorption end on sheet metal
On the face of screw；
Standard target is connected based on standard target absorption end, displacement sensor probe is located on standard target backwards to the one of screw
Side, and displacement sensor probe measurement direction be perpendicularly oriented to its towards standard target surface and displacement sensor probe
Measurement end and its it is adjustable towards the spacing between standard target surface；The data detection signal output end of displacement sensor probe
Pass through signal wire Interworking Data Acquisition Instrument host.
As a preferred technical solution of the present invention: the test specimen connection built-in fitting further includes that at least three-piece metal is thin
The through-hole through its two sides is respectively set in piece, the center of each sheet metal, and the internal diameter of through-hole is mutually fitted with the outer diameter of copper post
It answers, each sheet metal passes through its center through-hole respectively and be sheathed in copper post, and each sheet metal is located at test piece mould
Cuboid tray interior.
As a preferred technical solution of the present invention: the test piece mould include bottom plate, two blocks of side plates, two end plates and
Steel reinforcement cage；Position is parallel each other for two blocks of side plates, and ipsilateral corresponding sides are coplanar on two blocks of side plates, and this coplanar mutually hangs down with side plate respectively
Directly, strip groove, ipsilateral length on two pieces of side plate faces relative to each other are set on two pieces of side plate faces relative to each other, respectively at the both ends in face
Groove is parallel to each other coplanar, and this is coplanar perpendicular with side plate, and two end plates are respectively on two pieces of side plate faces relative to each other two
Ipsilateral strip groove is corresponding, and movable be inserted on two pieces of side plate faces relative to each other corresponds to ipsilateral length respectively for the two sides of each piece of end plate
In groove, two end plates and two blocks of side plates surround rectangle；
It between two pieces of side plate faces relative to each other, is located on the outside of each end plate, respectively in upper, lower position, passes through upper connection
Side plate hanging ring screw rod, lower connecting lateral plate hanging ring screw rod respectively activity run through two pieces of surface of side plate, for fix two blocks of side plates that
This position；It is movably connected with vertical connection bolt on each lower connecting lateral plate hanging ring screw rod, is distinguished by each vertical connection bolt
It is detachable to be connected to plate upper surface, realize two blocks of side plates, two end plates institute structure composite structure opposed bottom upper surface can
Separate type is fixed；Straight line is mutually conllinear with straight line where the line of two end plates center where the copper post；
Steel reinforcement cage is the rectangular parallelepiped structure adaptable with two end plates, two pieces of side plate institute structure composite structure interior shapes, steel reinforcement cage
It is placed in two end plates, in two pieces of side plate institute structure composite structure inside.
As a preferred technical solution of the present invention: the steel reinforcement cage includes that two steel bar fixing supports and four are elongated
Reinforcing bar, the rectangular configuration that steel bar fixing support is two end plates, two pieces of side plate institute structure composite structure internal end surface shapes are adaptable,
Spacing is adapted between both ends of the surface inside the length and two end plates of elongated reinforcing bar, two pieces of side plate institute structure composite structures, and four logical
Long reinforcing bar respectively corresponds two steel bar fixing support rectangular configurations with two vertex of position, the activity respectively of the both ends of each elongated reinforcing bar
Corresponding two vertex of two steel bar fixing support rectangular configurations is connected, and face where two steel bar fixing supports is parallel to each other, and each
The elongated reinforcing bar of root is perpendicular with face where each steel bar fixing support respectively.
As a preferred technical solution of the present invention: the test piece mould further includes at least two anti-side plate sliding spiral shells
Bolt is fixed on bottom plate, each anti-side plate based on two blocks of side plates, two end plates institute structure composite structure, by each vertical connection bolt
Sliding bolt be movably connected be set on bottom plate, the outside of two blocks of side plates, and each anti-side plate sliding bolt respectively with it is corresponding
It is in contact on the outside of side plate.
As a preferred technical solution of the present invention: further including sensor hold-down support, hold-down support includes channel steel structure
Part, probe fixing bracket are fixed on bottom plate based on two blocks of side plates, two end plates institute structure composite structure, by each vertical connection bolt
On and standard target absorption end connect standard target, channel members are set to plate upper surface by the way that bolt is detachable, probe
For fixed mount setting in the top of channel members, displacement sensor probe is set to probe fixing bracket upper surface.
As a preferred technical solution of the present invention: the copper post is internal screw thread hexagonal copper post.
With it is above-mentioned corresponding, technical problem to be solved by the invention is to provide a kind of early age deformations of armored concrete to survey
The measurement method of device is measured, convenient, efficiently armored concrete can be directed to and realize deformation measurement, improve measurement working efficiency.
In order to solve the above-mentioned technical problem the present invention uses following technical scheme: the present invention devises a kind of armored concrete
The measurement method of early age deformation measuring device, includes the following steps:
Bottom plate is placed in smooth experiment vacant lot by step A., and two end plates are inserted into respectively on two pieces of side plate faces relative to each other
In two ipsilateral strip grooves, and between two pieces of side plate faces relative to each other, the position that is located on the outside of each end plate, respectively upper
Position, lower position, the position each other of two blocks of side plates is fixed by upper connecting lateral plate hanging ring screw rod, lower connecting lateral plate hanging ring screw rod；
Two end plates, two pieces of side plate institute structure composite structures are fixed on plate upper surface by each vertical connection bolt by step B.,
And bolt is slid in each anti-side plate of the outside of two blocks of side plates connection, thus constitute test piece mould；
Step C. is directed to the inner wall of test piece mould, and brush oil is simultaneously laid with plastic film；
Step D. binds two steel bar fixing supports and four elongated reinforcing bars, then the steel reinforcement cage of binding is put into examination
In part mold；
Step E. test specimen connection built-in fitting is set in test piece mould, and the screw at standard target absorption end is passed through the logical of end plate
Hole, and the copper post for connecting with test specimen built-in fitting is connected, straight line where straight line where copper post and screw is and test piece mould two
End plate central position line is mutually conllinear；
Step F. stirring, then pours into test piece mould, vibrated concrete, surface of test piece is sealed with plastic film after molding；
Step G. waits for that concrete sample reaches final set, and separation test specimen connection built-in fitting and standard target adsorb end, i.e. copper post and screw
Nail separation, each side plate and each end plate of test piece mould of dismantling；
Standard target absorption end is connected on test specimen connection built-in fitting by step H. again, i.e., copper post is docked with screw, and will mark
Fiducial mark target is adsorbed on target absorption end；
Channel members are fixed on bottom plate by step I. with bolt, and probe fixing bracket is set to the top of channel members, and displacement passes
Sensor probe is set to probe fixing bracket upper surface；
Step J. adjusts best measuring distance of the displacement sensor probe away from standard target, is obtained in real time by displacement sensor probe
Take its measurement end distance the variation towards distance between standard target surface, and be uploaded in data collecting instrument host in real time.
A kind of armored concrete morning age deformation measuring device of the present invention and measurement method use above technical scheme
Compared with prior art, it has following technical effect that
The morning age deformation measuring device of armored concrete designed by the present invention and measurement method, for realizing armored concrete early age
The deformation measurement of phase compensates for the limitation of contactless experimental method as defined in standardizing, and operating principle is easily understood, both can be with
Demoulding measurement can also be measured with mould；Wherein device side plate, end plate rigidity are larger, are not easy to be influenced by test piece deformation；Test specimen at
Type on stable bottom plate, can make experiment be chronically at stable state；And wherein involved steel reinforcement cage, uses steel bar fixing support
It can more accurately ensure that position of the elongated reinforcing bar in test specimen cross section；Whole device structure is simple, convenient disassembly, whole
Property is good, and recyclability is strong, and low in cost, measurement method is easy to implement.
Detailed description of the invention
Fig. 1 is the schematic diagram of the early age deformation measuring device of armored concrete designed by the present invention；
Fig. 2 is the schematic diagram of middle test piece mould designed by the present invention；
Fig. 3 is the schematic diagram of steel reinforcement cage in the present invention；
Fig. 4 is the schematic diagram of Plays target built-in fitting of the present invention.
Wherein, 1. test piece mould, 2. sensor hold-down supports, 3. data acquisition devices, 11. bottom plates, 12. side plates,
13. end plate, connecting lateral plate hanging ring screw rod on 14., 15. lower connecting lateral plate hanging ring screw rods, 16. vertical connection bolts, 17.
Anti- side plate slides bolt, 18. steel reinforcement cages, and 19. standard targets connect built-in fitting, and 21. channel members, 22. bolts, 23. visit
Head frame, 31. standard targets, 32. displacement sensor probes, 33. data collecting instrument hosts, the fixed branch of 181. reinforcing bars
Frame, 182. elongated reinforcing bars, 191. standard targets adsorb end, and 192. test specimens connect built-in fitting, 1911. screws, 1912. metal foils
Piece, 1921. copper posts.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawings of the specification.
The present invention devises a kind of early age deformation measuring device of armored concrete, as shown in Figure 1, in practical application,
Built-in fitting 19 is connected with standard target including test piece mould 1, sensor hold-down support 2, data acquisition device 3.
Wherein, test piece mould 1 is made of plurality of plates moving jointing, for the early stage forming of armored concrete test specimen and test specimen
The fixed cuboid box body in position；In practical application, as shown in Fig. 2, test piece mould 1 includes 11, two blocks of side plates 12, two of bottom plate
Block end plate 13, steel reinforcement cage 18 and at least two anti-side plates slide bolt 17；Position is parallel each other for two blocks of side plates 12, and two pieces
Ipsilateral corresponding sides are coplanar on side plate 12, and this is coplanar perpendicular with side plate 12 respectively, on two pieces of faces relative to each other of side plate 12, respectively
Strip groove is set at the both ends in face, ipsilateral strip groove is parallel to each other coplanar on two pieces of faces relative to each other of side plate 12, and this is total
Face and side plate 12 are perpendicular, and two end plates 13 are corresponding with two ipsilateral strip grooves on two pieces of faces relative to each other of side plate 12 respectively,
Movable be inserted on two pieces of faces relative to each other of side plate 12 corresponds in ipsilateral strip groove respectively for the two sides of each piece of end plate 13, two pieces of ends
Plate 13 and two blocks of side plates 12 surround rectangle.
Between two pieces of faces relative to each other of side plate 12, it is located at each 13 outside of end plate, it is logical respectively in upper, lower position
Crossing connecting lateral plate hanging ring screw rod 14, lower connecting lateral plate hanging ring screw rod 15, activity is through two pieces of 12 surfaces of side plate respectively, for solid
The position each other of fixed two blocks of side plates 12；It is movably connected with vertical connection bolt 16 on each lower connecting lateral plate hanging ring screw rod 15, leads to
It crosses that each vertical connection bolt 16 is detachable respectively to be connected to 11 upper surface of bottom plate, realizes two blocks of side plates 12,13 institute of two end plates
The detachable fixation of 11 upper surface of structure composite structure opposed bottom.
Bottom plate is fixed on based on 13 two blocks of side plates 12, two end plates structure composite structures, by each vertical connection bolt 16
On 11, each anti-side plate sliding bolt 17 be movably connected be set on bottom plate 11, the outside of two blocks of side plates 12, and each anti-side plate
Sliding bolt 17 is in contact on the outside of corresponding side plate 12 respectively.
Steel reinforcement cage 18 is the cuboid knot adaptable with two end plates 13, two blocks of side plates, 12 structure composite structure interior shapes
Structure, steel reinforcement cage 18 are placed in 13, two blocks of two end plates side plate 12 structure composite structure inside.
Wherein, as shown in figure 3, steel reinforcement cage 18 includes two steel bar fixing supports 181 and four elongated reinforcing bars 182, reinforcing bar
The rectangular configuration that fixed bracket 181 is adapted for 13, two pieces of the two end plates structure composite structure internal end surface shape of side plate 12, leads to
Spacing is adapted between both ends of the surface inside the length and 13, two pieces of the two end plates structure of side plate 12 composite structure of long reinforcing bar 182, and four
The elongated reinforcing bar 182 of root respectively corresponds two steel bar fixing supports, 181 rectangular configuration with two vertex of position, each elongated reinforcing bar 182
Both ends be movably connected with corresponding two vertex of two steel bar fixing supports, 181 rectangular configuration, and two steel bar fixing supports, 181 institute
Parallel to each other and each of face, elongated reinforcing bar 182 is perpendicular with each 181 place face of steel bar fixing support respectively.
In practical application, the steel bar fixing support 181 at 18 both ends of steel reinforcement cage is welded using the deformed bar of 4 Φ 6, is welded
Connecing position is at the end reinforced position 2cm, to determine elongated reinforcing bar 182 in the position of concrete sample cross section；It is logical
Long reinforcing bar 182 is connected with the binding of steel bar fixing support 181.
As shown in figure 4, data acquisition device 3 includes standard target 31, displacement sensor probe 32, data collecting instrument host
33；Wherein, in 1921 practical application of copper post, internal screw thread hexagonal copper post is selected；
It includes standard target absorption end 191, test specimen connection built-in fitting 192 that standard target, which connects built-in fitting 19,；Standard target adsorbs end 191
Including screw 1911 and sheet metal 1912；It includes copper post 1921 and at least three-piece metal thin slice that test specimen, which connects built-in fitting 192,
1912；Standard target absorption end 191 connects built-in fitting 192 with test specimen and is located at 1 cuboid box body outside of test piece mould and inside,
Wherein, wherein one end of copper post 1921 is detachable butts up against 1 cuboid tray interior of test piece mould wherein in the end face of one end
Heart position, and 1921 place straight line of copper post and straight line where 1 cuboid box body both ends of the surface center line of test piece mould are mutually total
Line, 1 cuboid tray interior other end of test piece mould center setting run through interior or exterior space through-hole, the through-hole it is interior
Diameter is greater than the outer diameter of screw 1911, wherein one end of the detachable docking screw 1911 of the other end of copper post 1921, copper post
1921 place straight lines are mutually conllinear with 1911 place straight line of screw, and the other end of screw 1911 passes through 1 cuboid of test piece mould
Through-hole on box body end face, to exterior space, and screw 1911 is not in contact with the inner wall of the through-hole, and standard target adsorbs end
In 191 on the other end of the center activity docking screw 1911 on 1912 surface of sheet metal；Test specimen connects built-in fitting 192
In the center of each sheet metal 1912 be respectively set the through-hole through its two sides, the internal diameter of through-hole and copper post 1921 it is outer
Diameter is adapted, and by its center, through-hole is sheathed in copper post 1921 each sheet metal 1912 respectively, and each metal foil
Piece 1912 is located at 1 cuboid tray interior of test piece mould；Standard target 31 is detachable to be adsorbed in gold in standard target absorption end 191
Belong on thin slice 1912 on the face of screw 1911.
Hold-down support 2 includes channel members 21, probe fixing bracket 23, is based on 13 two blocks of side plates 12, two end plates structure groups
It closes structure, be fixed on bottom plate 11 by each vertical connection bolt 16 and the standard target absorption connection of end 191 standard target 31,
Channel members 21 are set to 11 upper surface of bottom plate by the way that bolt 22 is detachable, and probe fixing bracket 23 is set to channel members 21
Top, displacement sensor probe 32 are set to 23 upper surface of probe fixing bracket, and displacement sensor probe 32 is located at standard target 31
The upper side backwards to screw 1911, and 32 measurement direction of displacement sensor probe be perpendicularly oriented to its towards standard target 31
Surface and 32 measurement end of displacement sensor probe and its it is adjustable towards the spacing between 31 surface of standard target；Displacement passes
The data detection signal output end of sensor probe 32 passes through signal wire Interworking Data Acquisition Instrument host 33.
Based on the early age deformation measuring device of above-mentioned designed armored concrete, the present invention is further devised based on this
The measurement method of device in practical application, specifically comprises the following steps:
Bottom plate 11 is placed in smooth experiment vacant lot by step A., and it is relative to each other that two end plates 13 are inserted into two blocks of side plates 12 respectively
In two ipsilateral strip grooves on face, and between two pieces of faces relative to each other of side plate 12, be located at the position in 13 outside of each end plate
It sets, respectively in upper, lower position, fixes two pieces by upper connecting lateral plate hanging ring screw rod 14, lower connecting lateral plate hanging ring screw rod 15
The position each other of side plate 12.
Two end plates 13, two blocks of side plates, 12 structure composite structures are fixed on by step B. by each vertical connection bolt 16
11 upper surface of bottom plate, and bolt 17 is slid in each anti-side plate of the outside of two blocks of side plates 12 connection, thus constitute test piece mould 1.
Step C. is directed to the inner wall of test piece mould 1, and brush oil is simultaneously laid with plastic film.
Step D. binds two steel bar fixing supports 181 and four elongated reinforcing bars 182, then the steel that will be bound
Muscle cage 18 is put into test piece mould 1.
Step E. test specimen connection built-in fitting 192 is set in test piece mould 1, by the screw at standard target absorption end 191
1911 pass through the through-hole of end plate 13, and the copper post 1921 for connect with test specimen built-in fitting 192 is connected, 1921 place straight line of copper post and
1911 place straight line of screw is mutually conllinear with 1 two end plates of test piece mould, 13 center line.
Step F. stirring, then pours into test piece mould 1, vibrated concrete, surface of test piece plastic film after molding
Sealing.
Step G. waits for that concrete sample reaches final set, and separation test specimen connection built-in fitting 192 and standard target adsorb end 191, i.e.,
Copper post 1921 is separated with screw 1911, each side plate 12 and each end plate 13 of test piece mould 1 of dismantling.
Standard target absorption end 191 is connected on test specimen connection built-in fitting 192 by step H. again, i.e. copper post 1921 and spiral shell
Adjusting screw 1911 is docked, and standard target 31 is adsorbed on target absorption end 191.
Channel members 21 are fixed on bottom plate 11 by step I. bolt 22, and probe fixing bracket 23 is set to channel members
21 top, displacement sensor probe 32 are set to 23 upper surface of probe fixing bracket.
Step J. adjusts best measuring distance of the displacement sensor probe 32 away from standard target 31, is visited by displacement sensor
First 32 obtain in real time its measurement end distance the variation towards distance between 31 surface of standard target, and be uploaded to data in real time and adopt
Collect in instrument host 33, i.e. the measurement of the early age deformation of realization armored concrete.
The morning age deformation measuring device of armored concrete designed by above-mentioned technical proposal and measurement method, for realizing arrangement of reinforcement
The deformation measurement of concrete age morning, compensates for the limitation of contactless experimental method as defined in standardizing, and operating principle is simple
It is understandable, it can both be measured, can also be measured with mould with demoulding；Wherein device side plate 12,13 rigidity of end plate are larger, are not easy to be become by test specimen
The influence of shape；Specimen molding on stable bottom plate 11, can make experiment be chronically at stable state；And wherein involved reinforcing bar
Cage can more accurately ensure that position of the elongated reinforcing bar in test specimen cross section with steel bar fixing support；Whole device structure
Simply, convenient disassembly, good integrity, recyclability is strong, low in cost, and measurement method is easy to implement.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode within the knowledge of a person skilled in the art can also be without departing from the purpose of the present invention
It makes a variety of changes.
Claims (8)
1. a kind of early age deformation measuring device of armored concrete, it is characterised in that: including test piece mould (1), data acquisition dress
It sets (3) and connects built-in fitting (19) with standard target；Wherein, test piece mould (1) is made of plurality of plates moving jointing, mixes for arrangement of reinforcement
The cuboid box body that solidifying soil test specimen early stage forming and test specimen position are fixed；Data acquisition device (3) include standard target (31),
Displacement sensor probe (32), data collecting instrument host (33)；
Wherein, standard target connection built-in fitting (19) includes standard target absorption end (191), test specimen connection built-in fitting (192)；Standard
It includes screw (1911) and sheet metal (1912) that target, which adsorbs end (191),；It includes copper post that test specimen, which connects built-in fitting (192),
(1921)；Standard target absorption end (191) connects built-in fitting (192) with test specimen and is located at outside test piece mould (1) cuboid box body
Side and inside, wherein wherein one end of copper post (1921) is detachable to butt up against test piece mould (1) cuboid tray interior wherein
The center of one end end face, and straight line and test piece mould (1) cuboid box body both ends of the surface center where copper post (1921)
Straight line where line is mutually conllinear, and the center setting of test piece mould (1) cuboid tray interior other end runs through interior outer space
Between through-hole, the internal diameter of the through-hole is greater than the outer diameter of screw (1911), the detachable docking spiral shell of the other end of copper post (1921)
Wherein one end of adjusting screw (1911), straight line is mutually conllinear with straight line where screw (1911) where copper post (1921), screw
(1911) the other end passes through through-hole on test piece mould (1) cuboid box body end face, to exterior space, and screw (1911)
It is not in contact with the inner wall of the through-hole, the center activity that standard target adsorbs sheet metal (1912) surface in end (191) is right
On the other end for connecing screw (1911)；Standard target (31) is detachable to be adsorbed in metal foil in standard target absorption end (191)
On piece (1912) on the face of screw (1911)；
Based on standard target absorption end (191) connection standard target (31), displacement sensor probe (32) is located at standard target (31)
The upper side backwards to screw (1911), and displacement sensor probe (32) measurement direction be perpendicularly oriented to its towards standard mark
Target (31) surface and displacement sensor probe (32) measurement end and its can towards the spacing between standard target (31) surface
It adjusts；The data detection signal output end of displacement sensor probe (32) passes through signal wire Interworking Data Acquisition Instrument host (33).
2. the early age deformation measuring device of a kind of armored concrete according to claim 1, it is characterised in that: the test specimen connects
Connecing built-in fitting (192) further includes that at least three-piece metal thin slice (1912), the center of each sheet metal (1912) is set respectively
The through-hole through its two sides is set, the internal diameter of through-hole and the outer diameter of copper post (1921) are adapted, and each sheet metal (1912) is respectively
By its center, through-hole is sheathed on copper post (1921), and to be located at test piece mould (1) rectangular for each sheet metal (1912)
Body tray interior.
3. the early age deformation measuring device of a kind of armored concrete according to claim 1, it is characterised in that: the test specimen mould
Having (1) includes bottom plate (11), two pieces of side plates (12), two end plates (13) and steel reinforcement cage (18)；Two pieces of side plates (12) position each other
In parallel, and on two pieces of side plates (12) ipsilateral corresponding sides are coplanar, and this is coplanar perpendicular with side plate (12) respectively, two pieces of side plates (12)
Strip groove, ipsilateral strip groove on two pieces of side plates (12) face relative to each other are set on face relative to each other, respectively at the both ends in face
It is parallel to each other coplanar, and this is coplanar perpendicular with side plate (12), two end plates (13) are relative to each other with two pieces of side plates (12) respectively
Two ipsilateral strip grooves are corresponding on face, and activity is inserted into two pieces of side plates (12) opposite to each other respectively for the two sides of each piece of end plate (13)
It is corresponded on face in ipsilateral strip groove, two end plates (13) and two pieces of side plates (12) surround rectangle；
It between two pieces of side plates (12) face relative to each other, is located on the outside of each end plate (13), respectively in upper, lower position, leads to
Crossing connecting lateral plate hanging ring screw rod (14), lower connecting lateral plate hanging ring screw rod (15), activity runs through two pieces of side plate (12) surfaces respectively,
For fixing the position each other of two pieces of side plates (12)；Vertical connection is movably connected on each lower connecting lateral plate hanging ring screw rod (15)
Bolt (16) is connected to bottom plate (11) upper surface by the way that each vertical connection bolt (16) is detachable respectively, realizes two blocks of side plates
(12), the detachable fixation of two end plates (13) institute structure composite structure opposed bottom (11) upper surface；The copper post (1921)
Place straight line is mutually conllinear with straight line where the line of two end plates (13) center；
Steel reinforcement cage (18) is the cuboid adaptable with two end plates (13), two pieces of side plate (12) institute structure composite structure interior shapes
Structure, steel reinforcement cage (18) are placed in two end plates (13), in two pieces of side plate (12) institute's structure composite structure inside.
4. the early age deformation measuring device of a kind of armored concrete according to claim 3, it is characterised in that: the steel reinforcement cage
It (18) include two steel bar fixing supports (181) and four elongated reinforcing bars (182), steel bar fixing support (181) is two end plates
(13), the adaptable rectangular configuration of two pieces of side plate (12) institute structure composite structure internal end surface shapes, the length of elongated reinforcing bar (182)
Spacing is adapted between two end plates (13), two pieces of side plate (12) institute structure composite structures inside both ends of the surface, four elongated reinforcing bars
(182) two steel bar fixing supports (181) rectangular configuration is respectively corresponded with two vertex of position, the two of each elongated reinforcing bar (182)
End is movably connected with corresponding two vertex of two steel bar fixing supports (181) rectangular configuration, and two steel bar fixing supports (181) institute
Parallel to each other and each of face, elongated reinforcing bar (182) is perpendicular with face where each steel bar fixing support (181) respectively.
5. the early age deformation measuring device of a kind of armored concrete according to claim 3, it is characterised in that: the test specimen mould
Tool (1) further includes at least two anti-side plate slidings bolt (17), based on two pieces of side plates (12), two end plates (13) institute's structure combination knot
Structure is fixed on bottom plate (11) by each vertical connection bolt (16), and each anti-side plate sliding bolt (17), which is movably connected with, to be set
Be placed on bottom plate (11), the outside of two pieces of side plates (12), and each anti-side plate sliding bolt (17) respectively with corresponding side plate (12) outside
Side is in contact.
6. the early age deformation measuring device of a kind of armored concrete according to claim 1, it is characterised in that: further include sensing
Device hold-down support (2), hold-down support (2) include channel members (21), probe fixing bracket (23), are based on two pieces of side plates (12), two
Block end plate (13) institute structure composite structure, by each vertical connection bolt (16) be fixed on bottom plate (11) and standard target adsorb
(191) connection standard target (31) is held, channel members (21) are set to bottom plate (11) upper surface by the way that bolt (22) are detachable,
Probe fixing bracket (23) is set to the top of channel members (21), and displacement sensor probe (32) is set to probe fixing bracket (23)
Upper surface.
7. the early age deformation measuring device of a kind of armored concrete according to claim 1, it is characterised in that: the copper post
It (1921) is internal screw thread hexagonal copper post.
8. a kind of measurement side based on the early age deformation measuring device of armored concrete described in any one of claim 1 to 7
Method, which comprises the steps of:
Bottom plate (11) is placed in smooth experiment vacant lot by step A., two end plates (13) be inserted into respectively two pieces of side plates (12) that
In two ipsilateral strip grooves on this opposite face, and two pieces of side plates (12) opposite to each other between face, be located at each end plate
(13) position on the outside of passes through upper connecting lateral plate hanging ring screw rod (14), lower connecting lateral plate hanging ring respectively in upper, lower position
Screw rod (15) fixes the position each other of two pieces of side plates (12)；
Step B. is fixed two end plates (13), two pieces of side plate (12) institute structure composite structures by each vertical connection bolt (16)
In bottom plate (11) upper surface, and in each anti-side plate sliding bolt (17) of the outside of two pieces of side plates (12) connection, test specimen is thus constituted
Mold (1)；
Step C. is directed to the inner wall of test piece mould (1), and brush oil is simultaneously laid with plastic film；
Step D. binds two steel bar fixing supports (181) and four elongated reinforcing bars (182), then the steel that will be bound
Muscle cage (18) is put into test piece mould (1)；
Step E. test specimen connection built-in fitting (192) is set in test piece mould (1), by the screw of standard target absorption end (191)
(1911) through-hole of end plate (13) is passed through, and the copper post (1921) for connecting with test specimen built-in fitting (192) is connected, copper post (1921)
Straight line where place straight line and screw (1911) is and test piece mould (1) two end plates (13) center line is mutually conllinear；
Step F. stirring, then pours in test piece mould (1), vibrated concrete, surface of test piece plastic film is close after molding
Envelope；
Step G. waits for that concrete sample reaches final set, separation test specimen connection built-in fitting (192) and standard target absorption end (191), i.e.,
Copper post (1921) is separated with screw (1911), each side plate (12) and each end plate (13) of test piece mould of dismantling (1)；
Step H. again by standard target absorption end (191) be connected to test specimen connection built-in fitting (192) on, i.e., copper post (1921) with
Screw (1911) docking, and standard target (31) is adsorbed in target absorption end (191)；
Channel members (21) are fixed on bottom plate (11) by step I. with bolt (22), and probe fixing bracket (23) is set to channel steel
The top of component (21), displacement sensor probe (32) are set to probe fixing bracket (23) upper surface；
Step J. adjusts the best measuring distance of displacement sensor probe (32) away from standard target (31), is visited by displacement sensor
Head (32) obtain in real time its measurement end distance the variation towards distance between standard target (31) surface, and be uploaded to number in real time
According in Acquisition Instrument host (33).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823699A (en) * | 2019-07-10 | 2020-02-21 | 东南大学 | Improved temperature stress testing machine of strain acquisition system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010243402A (en) * | 2009-04-08 | 2010-10-28 | Sato Kogyo Co Ltd | Method and device for measuring strength of early-age concrete |
| CN103163286A (en) * | 2013-03-13 | 2013-06-19 | 浙江建设职业技术学院 | Measuring system for self-constriction of early-age concrete |
| CN103837670A (en) * | 2013-12-27 | 2014-06-04 | 河海大学 | Method and apparatus for measuring early-stage autogenous shrinkage of cement-based material |
| CN203720173U (en) * | 2013-12-27 | 2014-07-16 | 河海大学 | Device for measuring self-contraction of cement-based material at early age |
| CN106290810A (en) * | 2016-10-20 | 2017-01-04 | 哈尔滨工程大学 | A kind of contactless concrete early age deformation test system |
| CN205860942U (en) * | 2016-08-05 | 2017-01-04 | 青海地方铁路建设投资有限公司 | A kind of for testing the device of concrete shrinkage under dry environment |
| CN206114393U (en) * | 2016-10-25 | 2017-04-19 | 山东交通学院 | Shaping examination mould of preparation concrete sample |
| CN108241051A (en) * | 2017-12-18 | 2018-07-03 | 江苏苏博特新材料股份有限公司 | The test device and test method of a kind of early age self-constriction of cement-based material |
| CN209623675U (en) * | 2019-02-21 | 2019-11-12 | 河海大学 | A kind of early age deformation measuring device of armored concrete |
-
2019
- 2019-02-21 CN CN201910129918.9A patent/CN109696149A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010243402A (en) * | 2009-04-08 | 2010-10-28 | Sato Kogyo Co Ltd | Method and device for measuring strength of early-age concrete |
| CN103163286A (en) * | 2013-03-13 | 2013-06-19 | 浙江建设职业技术学院 | Measuring system for self-constriction of early-age concrete |
| CN103837670A (en) * | 2013-12-27 | 2014-06-04 | 河海大学 | Method and apparatus for measuring early-stage autogenous shrinkage of cement-based material |
| CN203720173U (en) * | 2013-12-27 | 2014-07-16 | 河海大学 | Device for measuring self-contraction of cement-based material at early age |
| CN205860942U (en) * | 2016-08-05 | 2017-01-04 | 青海地方铁路建设投资有限公司 | A kind of for testing the device of concrete shrinkage under dry environment |
| CN106290810A (en) * | 2016-10-20 | 2017-01-04 | 哈尔滨工程大学 | A kind of contactless concrete early age deformation test system |
| CN206114393U (en) * | 2016-10-25 | 2017-04-19 | 山东交通学院 | Shaping examination mould of preparation concrete sample |
| CN108241051A (en) * | 2017-12-18 | 2018-07-03 | 江苏苏博特新材料股份有限公司 | The test device and test method of a kind of early age self-constriction of cement-based material |
| CN209623675U (en) * | 2019-02-21 | 2019-11-12 | 河海大学 | A kind of early age deformation measuring device of armored concrete |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823699A (en) * | 2019-07-10 | 2020-02-21 | 东南大学 | Improved temperature stress testing machine of strain acquisition system |
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