CN209623675U - A kind of early age deformation measuring device of armored concrete - Google Patents
A kind of early age deformation measuring device of armored concrete Download PDFInfo
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- CN209623675U CN209623675U CN201920219895.6U CN201920219895U CN209623675U CN 209623675 U CN209623675 U CN 209623675U CN 201920219895 U CN201920219895 U CN 201920219895U CN 209623675 U CN209623675 U CN 209623675U
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Abstract
The utility model relates to a kind of early age deformation measuring devices of armored concrete, 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 utility model relates to a kind of early age deformation measuring devices of armored concrete, belong to concrete early deformation measurement
Technical field.
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.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of early age deformation measuring devices of armored concrete, adopt
It is designed with brand new, 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 utility model uses following technical scheme: the utility model devises one kind and matches
Reinforced concrete morning age deformation measuring device, including test piece mould, data acquisition device connect built-in fitting with standard target；Its
In, test piece mould is made of plurality of plates moving jointing, for the length of armored concrete test specimen early stage forming and the fixation of test specimen position
Cube box body；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；Standard target adsorbs end packet
Include screw and sheet metal；It includes copper post that test specimen, which connects built-in fitting,；Standard target absorption end connects built-in fitting difference position with test specimen
On the outside of test piece mould cuboid box body and inside, wherein wherein one end of copper post is detachable, and to butt up against test piece mould rectangular
The center of body tray interior 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 the line of position is mutually conllinear, and the center setting of test piece mould 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, wherein the one of the detachable docking screw of the other end of copper post
End, straight line is mutually conllinear with straight line where screw where copper post, and the other end of screw passes through test piece mould cuboid box body end
Through-hole on face, to exterior space, and screw is not in contact with the inner wall of the through-hole, and standard target adsorbs sheet metal table in end
On the other end of the center activity docking screw in face；Standard target is detachable to be adsorbed in metal in standard target absorption end
On thin slice 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 screw
Side, and displacement sensor probe measurement direction be perpendicularly oriented to its towards standard target surface and displacement sensor visit
Head measurement end and its it is adjustable towards the spacing between standard target surface；The data detection signal of displacement sensor probe exports
End passes through signal wire Interworking Data Acquisition Instrument host.
A kind of optimal technical scheme as the utility model: test specimen connection built-in fitting further includes at least three-piece metal
The through-hole through its two sides, the internal diameter and the outer diameter phase of copper post of through-hole is respectively set in thin slice, the center of each sheet metal
It adapts to, each sheet metal passes through its center through-hole respectively and be sheathed in copper post, and each sheet metal is located at test specimen mould
Has cuboid tray interior.
A kind of optimal technical scheme as the utility model: the test piece mould includes bottom plate, two blocks of side plates, two pieces of ends
Plate 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 it is coplanar respectively with side plate
It is perpendicular, on two pieces of side plate faces relative to each other, respectively on the both ends setting strip groove in face, two pieces of side plate faces relative to each other together
Side strip groove is parallel to each other coplanar, and this is coplanar perpendicular with side plate, two end plates respectively with two pieces of side plate faces relative to each other
Upper two ipsilateral strip groove is corresponding, and movable be inserted on two pieces of side plate faces relative to each other corresponds to together respectively for the two sides of each piece of end plate
In the strip groove of side, 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, by upper
Activity runs through two pieces of surface of side plate respectively for connecting lateral plate hanging ring screw rod, lower connecting lateral plate hanging ring screw rod, for fixing two blocks of side plates
Position each other；It is movably connected with vertical connection bolt on each lower connecting lateral plate hanging ring screw rod, passes through each vertical connection bolt
It is detachable respectively to be connected to plate upper surface, realize two blocks of side plates, two end plates institute structure composite structure opposed bottom upper surface
Detachable fixation；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
Muscle cage is placed in two end plates, in two pieces of side plate institute structure composite structure inside.
A kind of optimal technical scheme as the utility model: the steel reinforcement cage includes two steel bar fixing supports and four
Elongated reinforcing bar, the rectangle that steel bar fixing support is two end plates, two pieces of side plate institute structure composite structure internal end surface shapes are adaptable
Structure, spacing is adapted between the length and two end plates of elongated reinforcing bar, two pieces of side plate institute structure composite structures inside both ends of the surface, and four
The elongated reinforcing bar of root respectively corresponds two steel bar fixing support rectangular configurations with two vertex of position, the both ends difference of each elongated reinforcing bar
It is flexibly connected corresponding two vertex of two steel bar fixing support rectangular configurations, and face where two steel bar fixing supports is parallel to each other, with
And each elongated reinforcing bar is perpendicular with face where each steel bar fixing support respectively.
A kind of optimal technical scheme as the utility model: the test piece mould further includes at least two anti-side plate slidings
Bolt is fixed on bottom plate, each anti-side based on two blocks of side plates, two end plates institute structure composite structure, by each vertical connection bolt
Plate 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 right
It answers and is in contact on the outside of side plate.
A kind of optimal technical scheme as the utility model: further including sensor hold-down support, and hold-down support includes slot
Steel member, probe fixing bracket are fixed on based on two blocks of side plates, two end plates institute structure composite structure, by each vertical connection bolt
On bottom plate and standard target absorption end connects standard target, and channel members are set to plate upper surface by the way that bolt is detachable,
Probe fixing bracket is set to the top of channel members, and displacement sensor probe is set to probe fixing bracket upper surface.
A kind of optimal technical scheme as the utility model: the copper post is internal screw thread hexagonal copper post.
A kind of early age deformation measuring device of armored concrete described in the utility model using above technical scheme with it is existing
Technology is compared, and is had following technical effect that
The morning age deformation measuring device of armored concrete designed by the utility model, for realizing armored concrete early age
Deformation measurement, compensate for the limitation of contactless experimental method as defined in standardizing, operating principle is easily understood, can both tear open
Mould 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；Specimen molding
Stable state is chronically in that on stable bottom plate, can make to test；And wherein involved steel reinforcement cage, can with steel bar fixing support
More accurately ensure that position of the elongated reinforcing bar in test specimen cross section；Whole device structure is simple, convenient disassembly, globality
Good, 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 utility model；
Fig. 2 is the schematic diagram of middle test piece mould designed by the utility model；
Fig. 3 is the schematic diagram of steel reinforcement cage in the utility model；
Fig. 4 is the schematic diagram of the utility model Plays target built-in fitting.
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 embodiment of the present utility model is described in further detail with reference to the accompanying drawings of the specification.
The utility model devises a kind of early age deformation measuring device of armored concrete, as shown in Figure 1, practical application is worked as
In, including test piece mould 1, sensor hold-down support 2, data acquisition device 3 connect built-in fitting 19 with standard target.
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 absorption
End 191 includes screw 1911 and sheet metal 1912；It includes copper post 1921 and at least three-piece metal that test specimen, which connects built-in fitting 192,
Thin slice 1912；Standard target absorption end 191 connect with test specimen built-in fitting 192 be located on the outside of 1 cuboid box body of test piece mould with
Inside, wherein wherein one end of copper post 1921 is detachable to butt up against 1 cuboid tray interior of test piece mould wherein one end end face
Center, and straight line where 1 cuboid box body both ends of the surface center line of 1921 place straight line of copper post and test piece mould
Mutually conllinear, the center setting of 1 cuboid tray interior other end of test piece mould runs through the through-hole of interior or exterior space, the through-hole
Internal diameter be greater than screw 1911 outer diameter, the other end of copper post 1921 it is detachable docking screw 1911 wherein one end,
1921 place straight line of copper post is mutually conllinear with 1911 place straight line of screw, and the other end of screw 1911 is long across test piece mould 1
Through-hole on cube box body end face, to exterior space, and screw 1911 is not in contact with the inner wall of the through-hole, standard target absorption
In end 191 on the other end of the center activity docking screw 1911 on 1912 surface of sheet metal；Test specimen connects built-in fitting
The through-hole through its two sides, the internal diameter and copper post 1921 of through-hole is respectively set in the center of each sheet metal 1912 in 192
Outer diameter be adapted, by its center, through-hole is sheathed in copper post 1921 each sheet metal 1912 respectively, and each gold
Belong to thin slice 1912 and is located at 1 cuboid tray interior of test piece mould；Standard target 31 is detachable to be adsorbed in standard target absorption end 191
On middle sheet metal 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 utility model further devises base
In the measurement method of this device, practical application, specifically comprise the following steps:
Bottom plate 11 is placed in smooth experiment vacant lot by step A., and two end plates 13 are inserted into two blocks of side plates 12 each other respectively
In two ipsilateral strip grooves on opposite face, and between two pieces of faces relative to each other of side plate 12, be located at 13 outside of each end plate
Position it is fixed to pass through upper connecting lateral plate hanging ring screw rod 14, lower connecting lateral plate hanging ring screw rod 15 respectively in upper, lower position
The position each other of two blocks of side plates 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.
The embodiments of the present invention is explained in detail above in conjunction with attached drawing, but the utility model is not limited to
Above embodiment can also not depart from the utility model within the knowledge of a person skilled in the art
It is made a variety of changes under the premise of objective.
Claims (7)
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.
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| CN201920219895.6U CN209623675U (en) | 2019-02-21 | 2019-02-21 | A kind of early age deformation measuring device of armored concrete |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696149A (en) * | 2019-02-21 | 2019-04-30 | 河海大学 | A kind of early age deformation measuring device of armored concrete and measurement method |
| CN111122836A (en) * | 2020-01-16 | 2020-05-08 | 中铁第五勘察设计院集团有限公司 | Shrinkage value testing system, die system and shrinkage value testing method |
| CN112697676A (en) * | 2020-12-23 | 2021-04-23 | 河南双建科技发展股份有限公司 | Centrifugal concrete water penetration resistance detects uses examination mould |
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2019
- 2019-02-21 CN CN201920219895.6U patent/CN209623675U/en active Active
Cited By (3)
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| CN109696149A (en) * | 2019-02-21 | 2019-04-30 | 河海大学 | A kind of early age deformation measuring device of armored concrete and measurement method |
| CN111122836A (en) * | 2020-01-16 | 2020-05-08 | 中铁第五勘察设计院集团有限公司 | Shrinkage value testing system, die system and shrinkage value testing method |
| CN112697676A (en) * | 2020-12-23 | 2021-04-23 | 河南双建科技发展股份有限公司 | Centrifugal concrete water penetration resistance detects uses examination mould |
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