CN105021522A - Bond-slip property detection device, reinforcing bar slotting and strain gauge protection method - Google Patents
Bond-slip property detection device, reinforcing bar slotting and strain gauge protection method Download PDFInfo
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- CN105021522A CN105021522A CN201510374602.8A CN201510374602A CN105021522A CN 105021522 A CN105021522 A CN 105021522A CN 201510374602 A CN201510374602 A CN 201510374602A CN 105021522 A CN105021522 A CN 105021522A
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Abstract
The invention relates to a bond-slip property detection device, and a reinforcing bar slotting and strain gauge protection method. Bond-slip property test can be carried out to ordinary reinforced concrete test pieces, and reinforced concrete test pieces subjected to freezing and thawing cycle or accelerated corrosion. The technical scheme includes reinforcing bar slotting treatment, strain gauge waterproof and anti-freezing treatment, and drawing device design proposals. According to the reinforcing bar slotting treatment proposal, the reinforcing bar is divided into two sections, i.e. a bond section and a non-bond section, the bond section is uniformly split along a longitudinal rib axis by wire cutting method, after splitting, slotting is conducted in the reinforcing bar, the bond section reinforcing bar and the non-bond section reinforcing bar are in threaded connection through a sleeve, a strain gauge is sticked in the slot of the bond section reinforcing bar, and then epoxy resin is poured into the slot. According to the strain gauge waterproof and anti-freezing treatment, 705 silica gel and epoxy resin glue are employed to cover the strain gauge surface. According to the drawing device design proposal, the drawing device employs a frame type structure.
Description
Technical field
The present invention relates to civil engineering work bond-slip test field, be specifically related to a kind of bond-slip properties pick-up unit and reinforcing bar fluting, foil gauge means of defence, particularly concrete sample salt freeze circulation or accelerating corrosion after reinforced concrete bond and anchor property test.
Background technology
Bond-slip is one of most important basic problem in reinforced concrete structure theory.At present, the adhesion test method of employing has pull-out test, beam type to test and axis pulling experiment.Pull-out test test specimen makes simply and test findings is convenient to analyze.Therefore for a long time with it as the benchmark carried out reinforcing bar adhesive property relatively.For realizing describing more accurately bond-slip τ-s constitutive relation, many employings reinforcing bar fluting, paster and the method distributed by slippage in loading end, free end reckoning, explore the Changing Pattern of bond-anchorage τ-s relation along anchor length, thus shown that a function of position ψ (x) reflects this change.But it is inadequate also to there is in test measurement result precision, the problems such as discreteness is larger.Main manifestations is: (1) traditional reinforcing bar grooving method weakens comparatively large to reinforced steel bar strength, and after pouring into high strength glue after fluting, steel bar overall is poor; (2) measurement result of test specimen loading end slippage is inaccurate; (3) conventional at present draw-off gear experimental implementation process is comparatively consuming time, not efficiently; (4) how recording of reinforcing bar bond stress must, by the foil gauge of reinforcing bar inside stickup, prevent the inefficacy of test specimen foil gauge under Frozen-thawed cycled effect and after reinforcing bar accelerating corrosion from being the difficult problem perplexing researchist always at present.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of bond-slip properties pick-up unit, particularly for bond-anchorage stress and the loading end of reinforced concrete after Frozen-thawed cycled and after reinforcing bar accelerating corrosion, and the pick-up unit of free end slippage.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of bond-slip properties pick-up unit, comprise computer, strain acquirement instrument, outside framework, inner frame, universal testing machine crossbeam pressure head, be connected between inner frame and the outside framework top board of outside framework, inner frame can outside frame head plate vertically be slided, be provided with test specimen in inner frame, be provided with the reinforcing bar of vertical direction in test specimen, reinforcing bar bottom is fixedly connected with the inner frame base plate of inner frame;
Reinforcing bar and outside framework top plate contact position are provided with displacement meter, and test specimen top is also provided with displacement meter;
Universal testing machine crossbeam pressure head is provided with above inner frame top board;
One section of reinforcing bar in test specimen is provided with foil gauge, and foil gauge is connected with strain acquirement instrument by wire with displacement meter, and strain acquirement instrument is connected with computer.
In preferred scheme, described outside framework top board is provided with fluting, and be provided with billet in fluting, billet is provided with perforate, and reinforcing bar, through perforate, is fixedly connected with by nut with inner frame base plate.
In preferred scheme, described billet is also provided with displacement meter fixed orifice, displacement meter passes displacement meter fixed orifice and contacts with test specimen bottom surface.
In preferred scheme, described test specimen bottom is provided with loading end stationary installation, and loading end stationary installation is provided with the locking edge of a knife, and the locking edge of a knife is fixed on by clamping screw on the reinforcing bar that exposes test specimen bottom.
In preferred scheme, described test specimen top is provided with free end stationary installation, and free end stationary installation for being fixed in the displacement meter on test specimen top, and makes the displacement meter on top contact with test specimen upper surface.
In preferred scheme, described outside framework top board is provided with through hole, and the inner frame column of inner frame is through through hole, and lead to the hole site is provided with guide pipe.
In preferred scheme, the inner frame top board of described inner frame is provided with inner frame top board boss, universal testing machine crossbeam pressure head and inner frame top board boss vertical alignment.
For the reinforcing bar grooving method that reinforced concrete bond-slip detects, comprise the following steps:
One, the reinforcing bar imbedding test specimen is divided into two sections, be respectively fluting reinforcing bar and reinforcing bar of not slotting, fluting reinforcing bar two ends respectively car go out screw thread, and evenly cut dimidiation open along vertical rib axis, by the first sleeve and the second sleeve connection between two halves reinforcing bar, and slotted line is closed, infusion epoxy resin glue in slotted line.
Two, reinforcing bar two ends car of not slotting goes out screw thread, and threaded one end is fixed by the adhesive section of the second sleeve with fluting reinforcing bar, and other end cutting thread can be connected with its thread in pick-up unit.
In preferred scheme, described slotted line is the rectangular recess of 3cm × 6cm, and slotted line one end is opened to steel bar end, stays and establish certain distance between the other end and the reinforcing bar other end.
For the anti-damage method of foil gauge that reinforced concrete bond-slip detects, it is characterized in that comprising the following steps:
One, at foil gauge surface smear 705 silica gel.
Two, foil gauge is equidistantly pasted onto in the slotted line of reinforcing bar.
Three, slotted line is passed in the wire one end be connected with strain acquirement instrument, utilize ultra-fine aviation wire to be welded with foil gauge by wire.
Four, infusion epoxy resin in reinforcing bar slotted line.
Five, intercept and the isometric pvc pipe of test specimen outside reinforcing bar, the sheathed rubber plug in pvc pipe one end, and carry out bonding with water-borne glue, to prevent steel bar corrosion.
Six, the direct joint of reinforcing bar free end socket PVC, and carry out bonding with water-borne glue, prevent reinforcing bar corrosion in Frozen-thawed cycled.
Seven, by the sealing PVC casing pipe sleeve made on the second sleeve pipe of reinforcing bar loading end and on the first sleeve of reinforcing bar free end, as reinforcing bar without bonding section, and between sleeve pipe and reinforcing bar, smear water-borne glue do water-proofing treatment.
The invention provides a kind of bond-slip properties pick-up unit and reinforcing bar fluting, foil gauge means of defence, by adopting said structure and mode, after cross-notching scheme is improved, the globality after infusion epoxy resin glue makes the reinforcing bar of riving close in the first sleeve, the second sleeve and slotted line after reinforcing bar is slotted, is adopted to be improved significantly; Slotted line one end and termination, reinforcing bar one end are left certain distance to avoid effective area of reinforcement on same cross section too small and cause reinforcing bar to be surrendered prior to bond damage, cause test failure; By the improvement of foil gauge waterproof measures of prevent freezing, reinforcing bar internal strain sheet is adequately protected; Charger adopts the structure of inner frame and outside framework, displacement meter closely can be fixed on test specimen free end and loading end place, and loading end stationary installation adopts locking and top knife-edge design that loading end stationary installation can be made to be fixed on reinforcing bar root thus makes displacement meter indirectly be fixed on some place of concrete sample loading end reinforcing bar root, makes loading end slippage measured value enough accurate; The unique design of charger makes reinforced concrete test specimen at loading surface covering steel plate and after installing loading end stationary installation, free end stationary installation and displacement meter, can directly overallly be shelved on outside framework top board through draw-off gear outside framework top board, then tighten disk nut and can start test, this device can greatly be saved time in installation test specimen, raises the efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is facade structures schematic diagram of the present invention.
Fig. 2 is outside framework top board plan structure schematic diagram of the present invention.
Fig. 3 is billet plan structure schematic diagram of the present invention.
Fig. 4 is the facade structures schematic diagram of loading end stationary installation of the present invention.
Fig. 5 is the plan structure schematic diagram of loading end stationary installation of the present invention.
Fig. 6 is test specimen of the present invention and bar construction schematic diagram.
Fig. 7 is fluting bar construction schematic diagram of the present invention.
Fig. 8 is bar construction schematic diagram of not slotting of the present invention.
In figure: computer 1, strain acquirement instrument 2, loading end stationary installation 3, displacement meter 4, guide pipe 5, outside framework 6, free end stationary installation 7, foil gauge 8, nut 9, inner frame 10, billet 11, clamping screw 12, outside framework top board 13, test specimen 14, reinforcing bar 15, the locking edge of a knife 16, universal testing machine crossbeam pressure head 17, first displacement meter through hole 18, displacement fixed orifice 19, fluting 20, inner frame top board 101, inner frame base plate 102, inner frame column 103, inner frame top board boss 104, first sleeve 21, second sleeve 22, slotted line 23, adhesive section 24, pvc pipe 25, perforate 26, fluting reinforcing bar 27, not slot reinforcing bar 28.
Embodiment
As in figure, a kind of bond-slip properties pick-up unit, comprise computer 1, strain acquirement instrument 2, outside framework 6, inner frame 10, universal testing machine crossbeam pressure head 17, it is characterized in that: be connected between inner frame 10 and the outside framework top board 13 of outside framework 6, inner frame 10 can outside frame head plate 13 vertically be slided, be provided with test specimen 14 in inner frame 10, be provided with the reinforcing bar 15 of vertical direction in test specimen 14, reinforcing bar 15 bottom is fixedly connected with the inner frame base plate 102 of inner frame 10;
Reinforcing bar 15 and outside framework top board 13 contact position are provided with displacement meter 4, and test specimen 14 top is also provided with displacement meter 4;
Universal testing machine crossbeam pressure head 17 is provided with above inner frame top board 101;
One section of reinforcing bar 15 in test specimen 14 is provided with foil gauge 8, and foil gauge 8 is connected with strain acquirement instrument 2 by wire with displacement meter 4, and strain acquirement instrument 2 is connected with computer 1.
In preferred scheme, described outside framework top board 13 is provided with fluting 20, and be provided with billet 11 in fluting 20, billet 11 is provided with perforate 26, and reinforcing bar 15, through perforate 26, is fixedly connected with by nut 9 with inner frame base plate 102.The object of design billet 11 is to ensure that concrete sample has enough lifting surface areas, and the fluting arranged in the middle of outside framework top board 13 is in order to test specimen is more convenient in installation process.
In preferred scheme, described billet 11 is also provided with displacement meter fixed orifice 19, displacement meter 4 passes displacement meter fixed orifice 19 and contacts with test specimen 14 bottom surface.
In preferred scheme, described test specimen 14 bottom is provided with loading end stationary installation 3, and loading end stationary installation 3 is provided with the locking edge of a knife 16, and the locking edge of a knife 16 is fixed on by clamping screw 12 on the reinforcing bar 15 that exposes test specimen 14 bottom.By the improvement of this structure, greatly can reduce the impact of non-anchored section reinforcing bar anamorphic stretching, substantially increase the precision of reinforcing bar loading end slippage.
In preferred scheme, described test specimen 14 top is provided with free end stationary installation 7, and free end stationary installation 7 for being fixed in the displacement meter 4 on test specimen 14 top, and makes the displacement meter 4 on top contact with test specimen 14 upper surface.Adopt the structure described in above-mentioned two schemes, test specimen installs loading end stationary installation 3 and displacement meter 4 after loading end reinforcing bar inserts billet 11, test specimen can be put into the square hole of outside framework top board 13 by reinforcing bar free end after installing free end stationary installation 7 and displacement meter 4, after carefully connecting the wire, test can be started.Compare with other many draw-off gears, this device is very convenient, fast in installation test specimen, saves plenty of time and manpower.
In preferred scheme, described outside framework top board 13 is provided with through hole 18, and the inner frame column 103 of inner frame 10 is through through hole 18, and through hole 18 position is provided with guide pipe 5.Structure thus, makes inner frame 10 in experimentation, can vertically decline or rise, and test specimen end face uniform stressed, can not produce harmful radial component.
In preferred scheme, the inner frame top board 101 of described inner frame 10 is provided with inner frame top board boss 104, universal testing machine crossbeam pressure head 17 and inner frame top board boss 104 vertical alignment.
For the reinforcing bar grooving method that reinforced concrete bond-slip detects, comprise the following steps:
One, the reinforcing bar 15 imbedding test specimen is divided into two sections, be respectively fluting reinforcing bar 27 and reinforcing bar 28 of not slotting, fluting reinforcing bar 27 two ends respectively car go out screw thread, and evenly cut dimidiation open along vertical rib axis, be connected with the second sleeve 22 by the first sleeve 21 between two halves reinforcing bar, and slotted line 23 is closed, infusion epoxy resin glue in slotted line 23.
Two, reinforcing bar 28 two ends car of not slotting goes out screw thread, and threaded one end is fixed by the adhesive section 24 of the second sleeve 22 with fluting reinforcing bar 27, and other end cutting thread can be threaded with the nut 9 in pick-up unit.
In preferred scheme, described slotted line 23 is the rectangular recess of 3cm × 6cm, and slotted line 23 one end is opened to reinforcing bar 15 termination, stays and establish certain distance between the other end and reinforcing bar 15 other end.By adopting said structure, avoiding loading end reinforcing bar slotted eye and screw thread in same cross section, and then avoid effective area of reinforcement on same cross section too small and cause reinforcing bar to be surrendered prior to bond damage, causing test failure.
10, for the anti-damage method of foil gauge that reinforced concrete bond-slip detects, it is characterized in that comprising the following steps:
One, at foil gauge 8 surface smear 705 silica gel.
Two, foil gauge 8 is equidistantly pasted onto in the slotted line 23 of reinforcing bar 15.
Three, slotted line 23 is passed in the wire one end be connected with strain acquirement instrument 2, utilize ultra-fine aviation wire to be welded with foil gauge 8 by wire.
Four, infusion epoxy resin in reinforcing bar slotted line 23.
Five, to intercept and the isometric pvc pipe 25 of the outside reinforcing bar of test specimen 14 15, the sheathed rubber plug in pvc pipe 25 one end, and carry out bonding with water-borne glue, to prevent steel bar corrosion.
Six, the direct joint of reinforcing bar free end socket PVC, and carry out bonding with water-borne glue, prevent reinforcing bar corrosion in Frozen-thawed cycled.
Seven, by the sealing PVC casing pipe sleeve made on the second sleeve pipe 22 of reinforcing bar loading end and on the first sleeve 21 of reinforcing bar free end, as reinforcing bar without bonding section, and between sleeve pipe and reinforcing bar, smear water-borne glue do water-proofing treatment.
By adopting said structure, displacement meter closely can be fixed on test specimen free end and loading end place; Can the slippage of Measurement accuracy test specimen free end and loading end in loading procedure; Adopt displacement meter to be connected the type of attachment of strain acquirement instrument with foil gauge, realize the slippage synchro measure of strain corresponding to bond stress and free end and loading end.And, this device is quick for installation, convenient, test specimen is after free end stationary installation, displacement meter installation and loading end stationary installation, billet, directly put between inner frame top board and outside framework top board by test specimen after displacement meter installation, be shelved on outside framework top board, then tight a bolt, test can be started after carefully connecting the wire, eliminate and must first test specimen be installed on after on draw-off gear in the past, again fixing device for installing, displacement meter time space is narrow and small operates very inconvenient trouble simultaneously, greatly saves the set-up time.Adopt above-mentioned fluting scheme, ensure that the globality after the two halves bar connecting cut open is better, reinforced steel bar strength weakens less, realizes the success of testing process and the accurate of data with this.By adopting above-mentioned foil gauge waterproof measures of prevent freezing, the damage avoiding foil gauge causes the inaccurate situation that maybe cannot detect data of Data Detection.
Embodiment 1:
One, device is placed on universal testing machine, universal testing machine crossbeam pressure head 17 is overlapped with device inner frame top board boss 104, and both are fixed.
Two, billet 11 is passed test specimen reinforcing bar loading end from bottom to top, loading end stationary installation 3 on reinforcing bar loading end cover, the loading end stationary installation 3 internal locking edge of a knife 16, tightens clamping screw 12 upward, and the locking edge of a knife 16 is fixed on reinforcing bar root.
Three, loading end displacement meter 4 is installed fix.
Four, free end stationary installation 7 is installed, free end travel meter 4 is installed.
Five, rising universal testing machine crossbeam, crossbeam driving device inner frame 10 rises.
Six, by install displacement meter 4, loading end stationary installation 3, free end stationary installation 7 test specimen to be positioned on outside framework top board 13 and tightening nuts 9.
Seven, wiring, opens strain acquirement instrument 2 and universal testing machine, arranges loading speed, can start test.
The present invention uses comparatively simple device to achieve the Measurement accuracy of pull-out experiment free end, the loading end slippage dependent variable corresponding with bond stress, and this device is easy to operate, drastically increases test accuracy and work efficiency.In addition, it is convenient that another outstanding advantages of this device installs test specimen exactly, saves the plenty of time, convenient and swift.
Claims (10)
1. a bond-slip properties pick-up unit, comprise computer (1), strain acquirement instrument (2), outside framework (6), inner frame (10), universal testing machine crossbeam pressure head (17), it is characterized in that: be connected between inner frame (10) and the outside framework top board (13) of outside framework (6), inner frame (10) can outside frame head plate (13) vertically be slided, test specimen (14) is provided with in inner frame (10), the reinforcing bar (15) of vertical direction is provided with in test specimen (14), reinforcing bar (15) bottom is fixedly connected with the inner frame base plate (102) of inner frame (10),
Reinforcing bar (15) and outside framework top board (13) contact position are provided with displacement meter (4), and test specimen (14) top is also provided with displacement meter (4);
Inner frame top board (101) top is provided with universal testing machine crossbeam pressure head (17);
One section of reinforcing bar (15) in test specimen (14) is provided with foil gauge (8), and foil gauge (8) is connected with strain acquirement instrument (2) by wire with displacement meter (4), and strain acquirement instrument (2) is connected with computer (1).
2. a kind of bond-slip properties pick-up unit according to claim 1, it is characterized in that: described outside framework top board (13) is provided with fluting (20), billet (11) is provided with in fluting (20), billet (11) is provided with perforate (26), reinforcing bar (15), through perforate (26), is fixedly connected with by nut (9) with inner frame base plate (102).
3. a kind of bond-slip properties pick-up unit according to claim 2, it is characterized in that: described billet (11) is also provided with displacement meter fixed orifice (19), displacement meter (4) is through displacement meter fixed orifice (19) and contact with test specimen (14) bottom surface.
4. a kind of bond-slip properties pick-up unit according to claim 1, it is characterized in that: described test specimen (14) bottom is provided with loading end stationary installation (3), loading end stationary installation (3) is provided with the locking edge of a knife (16), and the locking edge of a knife (16) is fixed on by clamping screw (12) on the reinforcing bar (15) that exposes test specimen (14) bottom.
5. a kind of bond-slip properties pick-up unit according to claim 1, it is characterized in that: described test specimen (14) top is provided with free end stationary installation (7), free end stationary installation (7) for being fixed in the displacement meter (4) on test specimen (14) top, and makes the displacement meter on top (4) contact with test specimen (14) upper surface.
6. a kind of bond-slip properties pick-up unit according to claim 1, it is characterized in that: described outside framework top board (13) is provided with through hole (18), the inner frame column (103) of inner frame (10) is through through hole (18), and through hole (18) position is provided with guide pipe (5).
7. a kind of bond-slip properties pick-up unit according to claim 1, it is characterized in that: the inner frame top board (101) of described inner frame (10) is provided with inner frame top board boss (104), universal testing machine crossbeam pressure head (17) and inner frame top board boss (104) vertical alignment.
8., for the reinforcing bar grooving method that reinforced concrete bond-slip detects, it is characterized in that comprising the following steps:
One, the reinforcing bar (15) imbedding test specimen is divided into two sections, be respectively fluting reinforcing bar (27) and reinforcing bar (28) of not slotting, fluting reinforcing bar (27) two ends respectively car go out screw thread, and evenly cut dimidiation open along vertical rib axis, be connected with the second sleeve (22) by the first sleeve (21) between two halves reinforcing bar, and slotted line (23) is closed, infusion epoxy resin glue in slotted line (23);
Two, reinforcing bar (28) two ends car of not slotting goes out screw thread, and threaded one end is fixed by the adhesive section (24) of the second sleeve (22) with fluting reinforcing bar (27), and other end cutting thread can be threaded with the nut (9) in pick-up unit.
9. a kind of reinforcing bar grooving method detected for reinforced concrete bond-slip according to claim 8, it is characterized in that: the rectangular recess that described slotted line (23) is 3cm × 6cm, slotted line (23) one end is opened to reinforcing bar (15) termination, stays and establish certain distance between the other end and reinforcing bar (15) other end.
10., for the anti-damage method of foil gauge that reinforced concrete bond-slip detects, it is characterized in that comprising the following steps:
One, at foil gauge (8) surface smear 705 silica gel;
Two, foil gauge (8) is equidistantly pasted onto in the slotted line (23) of reinforcing bar (15);
The wire one end that three, will be connected with strain acquirement instrument (2), through slotted line (23), utilizes ultra-fine aviation wire to be welded with foil gauge (8) by wire;
Four, infusion epoxy resin in reinforcing bar slotted line (23);
Five, to intercept and the isometric pvc pipe (25) of test specimen (14) outside reinforcing bar (15), the sheathed rubber plug in pvc pipe (25) one end, and carry out bonding with water-borne glue, to prevent steel bar corrosion;
Six, the direct joint of reinforcing bar free end socket PVC, and carry out bonding with water-borne glue, prevent reinforcing bar corrosion in Frozen-thawed cycled;
On first sleeve (21) of seven, the sealing PVC casing pipe sleeve made is upper at second sleeve pipe (22) of reinforcing bar loading end and reinforcing bar free end, as reinforcing bar without bonding section, and between sleeve pipe and reinforcing bar, smear water-borne glue do water-proofing treatment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510374602.8A CN105021522A (en) | 2015-07-01 | 2015-07-01 | Bond-slip property detection device, reinforcing bar slotting and strain gauge protection method |
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| CN201510374602.8A CN105021522A (en) | 2015-07-01 | 2015-07-01 | Bond-slip property detection device, reinforcing bar slotting and strain gauge protection method |
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| CN106483068A (en) * | 2016-12-20 | 2017-03-08 | 河海大学 | A kind of reciprocal method of testing for loading lower basalt fibre muscle and concrete dynamic adhesion performance |
| CN106644930A (en) * | 2016-11-01 | 2017-05-10 | 长安大学 | Device and method for bonding slippage testing inside reinforced concrete |
| CN107421664A (en) * | 2017-05-24 | 2017-12-01 | 天津城建大学 | It is a kind of to measure steel and the foil gauge and method of attaching of concrete binding sliding |
| CN107843556A (en) * | 2017-12-22 | 2018-03-27 | 西京学院 | For bond stress test device and its method between concrete and rebar |
| CN108444630A (en) * | 2018-03-19 | 2018-08-24 | 中冶建筑研究总院有限公司 | A method of measuring changing rule of the reinforcement stresses along reinforcing bar length direction |
| CN109211763A (en) * | 2018-09-14 | 2019-01-15 | 深圳大学 | A kind of miniature Mechanical Property of Rusty Rebar test method and system |
| CN110132840A (en) * | 2019-05-08 | 2019-08-16 | 浙江省交通规划设计研究院有限公司 | Profiled sheet and concrete horizontal based on self-balancing principle bond force measuring device |
| CN110296933A (en) * | 2019-06-27 | 2019-10-01 | 天津大学 | A kind of steel core concrete column push out test bond-slip measuring device |
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| CN106644930B (en) * | 2016-11-01 | 2023-04-21 | 长安大学 | Reinforced concrete internal bonding slip testing device and method |
| CN106483068A (en) * | 2016-12-20 | 2017-03-08 | 河海大学 | A kind of reciprocal method of testing for loading lower basalt fibre muscle and concrete dynamic adhesion performance |
| CN107421664A (en) * | 2017-05-24 | 2017-12-01 | 天津城建大学 | It is a kind of to measure steel and the foil gauge and method of attaching of concrete binding sliding |
| CN107843556A (en) * | 2017-12-22 | 2018-03-27 | 西京学院 | For bond stress test device and its method between concrete and rebar |
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| CN108444630A (en) * | 2018-03-19 | 2018-08-24 | 中冶建筑研究总院有限公司 | A method of measuring changing rule of the reinforcement stresses along reinforcing bar length direction |
| CN109211763A (en) * | 2018-09-14 | 2019-01-15 | 深圳大学 | A kind of miniature Mechanical Property of Rusty Rebar test method and system |
| CN110132840A (en) * | 2019-05-08 | 2019-08-16 | 浙江省交通规划设计研究院有限公司 | Profiled sheet and concrete horizontal based on self-balancing principle bond force measuring device |
| CN110132840B (en) * | 2019-05-08 | 2021-10-22 | 浙江数智交院科技股份有限公司 | Profiled steel sheet and concrete horizontal binding power measuring device based on self-balancing principle |
| CN110296933A (en) * | 2019-06-27 | 2019-10-01 | 天津大学 | A kind of steel core concrete column push out test bond-slip measuring device |
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