CN202421047U - HPFL (High Performance Ferrocement Laminate) strengthening layer bond-slip testing device - Google Patents
HPFL (High Performance Ferrocement Laminate) strengthening layer bond-slip testing device Download PDFInfo
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- CN202421047U CN202421047U CN2012200159279U CN201220015927U CN202421047U CN 202421047 U CN202421047 U CN 202421047U CN 2012200159279 U CN2012200159279 U CN 2012200159279U CN 201220015927 U CN201220015927 U CN 201220015927U CN 202421047 U CN202421047 U CN 202421047U
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Abstract
The utility model discloses an HPFL (High Performance Ferrocement Laminate) strengthening layer bond-slip testing device, comprising a test base plate, a lower ejector plate, a middle ejector plate and an upper ejector plate, and one or more than one stain testing instrument, wherein two slideways are formed on the upper half part of the test base plate; two pulleys are fixedly connected to the bottom end of the upper ejector plate; a plurality of limiting rings are arranged on the upper surface of the middle ejector plate; a jack is arranged at the top end of the middle ejector plate; a load sensor is arranged at the top end of the jack; a strengthening layer carrying bar penetrates through the limiting rings and is fixedly connected to the upper ejector plate through an anchorage device; a plurality of hold-down bolts are in threaded connection with the bottom end and the side faces of the lower ejector plate; the output end of the load sensor and the output ends of a plurality of stain testing instruments are connected to a data acquisition instrument; and the output end of the data acquisition instrument is connected to an upper computer. The HPFL strengthening layer bond-slip testing device is simple in structure, rational in design, convenient for implementation and high in intelligence degree, convenient and quick in use and operation, high in data processing capability, high in speed, safe and reliable in testing process, high in practice value, and convenient for popularization and application.
Description
Technical field
The utility model relates to civil engineering work method of testing technical field, especially relates to a kind of HPFL back-up coat bond slip proving installation.
Background technology
Reinforcement High Performance Mortar reinforcement technique (HPFL reinforcement technique) is the novel reinforced technology of rising in recent years; This technology is to spread stressed materials such as bar-mat reinforcement, woven wire, steel wire mesh at surface of concrete structure; Be anchored on the member with expansion bolt then; Make it form integral body and co-operation is spread High Performance Mortar at last as protective seam, to improve a kind of reinforcement means of structural bearing capacity and permanance.This reinforcement technique obtains application more and more widely in field of civil engineering such as building structure, bridges at present.Test finds with actual the use, and back-up coat is because stressed complicacy, construction quality, environmental factor etc. are former thereby early stage stripping damage takes place.For analyzing the back-up coat stripping damage, the test that just must make an experiment to the bond slip of back-up coat so that set up corresponding bond slip constitutive relation, thereby is analyzed its stripping damage mechanism.Stripping damage method of testing commonly used at present is to measure back-up coat along receiving the Strain Distribution of force direction to obtain required test figure through foil gauge.Because materials such as the FRP that reinforcement means such as FRP, glutinous steel adopt, steel plate are thin and wood property is single, the method that foil gauge is measured is comparatively feasible.And the High Performance Mortar back-up coat is because the mortar material self characteristics, and back-up coat is thicker, and the destruction face is complex-shaped; Foil gauge is measured can't satisfy requirement of experiment at all; And sound is big when loading destruction, is prone to cause testing apparatus to damage, and loading system needs design separately.Therefore press for the problem that a kind of effective means solve experimental test.
The utility model content
The utility model technical matters to be solved is to above-mentioned deficiency of the prior art a kind of HPFL back-up coat bond slip proving installation to be provided, and it is simple in structure; Reasonable in design, realize that convenient and intelligent degree is high, use simple operation; Data-handling capacity is strong, speed is fast; Test process is safe and reliable, and practical value is high, and is easy to utilize.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of HPFL back-up coat bond slip proving installation; Said HPFL back-up coat is arranged on the surperficial midway of original test specimen; The embedded back-up coat principal rod that is provided with in the said HPFL back-up coat; It is characterized in that: comprise the test base plate, be fixedly connected on test base plate bottom and be used for fixing original test specimen lower roof plate, be fixedly connected on the middle top board at test base plate middle part and be slidingly connected at the upper plate of test base plate the first half, and be embedded in HPFL back-up coat and original test specimen binding site place and be used to measure one or more strain testing instruments of HPFL back-up coat and the place's certain distance internal strain of original test specimen binding site; The first half left and right sides symmetry of said test base plate offers two slideways; The bottom of said upper plate is fixedly connected with two and is used for carrying the pulley that upper plate slides at slideway; The upper surface of top board is provided with a plurality of spacing rings of supplying the back-up coat principal rod to pass of being used in said; The top of top board is provided with and is used to drive the lifting jack that upper plate slides in said; The top of said lifting jack is provided with the load transducer that is used to measure the suffered load of HPFL back-up coat; Said back-up coat principal rod passes said spacing ring and is fixedly connected with upper plate through ground tackle; The bottom of said lower roof plate and side a plurality of hold-down bolts that are used to compress said original test specimen that are threaded; The output terminal of the output terminal of said load transducer and a plurality of said strain testing instruments is connected to the data collecting instrument that is used to gather load transducer and a plurality of strain testing instrument institute output data, and the output terminal of said data collecting instrument is connected to and is used for data that the analyzing and processing data Acquisition Instrument exported and the host computer that result is shown synchronously.
Above-mentioned HPFL back-up coat bond slip proving installation is characterized in that: be connected with the crashproof rope that is used to prevent that said HPFL back-up coat from splashing away when broken on the test base plate between said lower roof plate and middle top board.
Above-mentioned HPFL back-up coat bond slip proving installation is characterized in that: said strain testing instrument is that guide rod tens(i)ometer and said guide rod tens(i)ometer are 1～6.
Above-mentioned HPFL back-up coat bond slip proving installation; It is characterized in that: said guide rod tens(i)ometer is four; Wherein two guide rod tens(i)ometers are embedded in HPFL back-up coat top and original test specimen binding site place, and two other guide rod tens(i)ometer is embedded in HPFL back-up coat bottom and original test specimen binding site place.
Above-mentioned HPFL back-up coat bond slip proving installation is characterized in that: said lower roof plate is connected test base plate bottom through first bolt, and said middle top board is connected test base plate middle part through second bolt.
Above-mentioned HPFL back-up coat bond slip proving installation is characterized in that: the quantity of described spacing ring equates with the quantity of said back-up coat principal rod and is 2～6.
Above-mentioned HPFL back-up coat bond slip proving installation, it is characterized in that: said lifting jack is hydraulic jack or mechanic jacks.
The utility model compared with prior art has the following advantages:
1, the utility model is primarily aimed at prior art and can't satisfies the requirement of slippage test experiments and propose; Through on the test base plate, slideway being set, pulley being set in the bottom of upper plate; And the back-up coat principal rod is fixedly connected with upper plate through ground tackle, solved the loading problem of HPFL back-up coat disbonded test; Through strain testing instrument, data collecting instrument and host computer are set, can realize the test of HPFL back-up coat slippage easily.
2, the utility model is simple in structure, and is reasonable in design, installs and realizes that convenient and intelligent degree is high.
3, the utility model uses simple operation, and data-handling capacity is strong, speed is fast.
4, the utility model has guaranteed that through crashproof rope and spacing ring are set test process security is reliable, has effectively protected proving installation, has solved the problem of damage equipment in the test process.
5, can set up the bond slip constitutive relation through the utility model, thereby for the stripping damage mechanism of analyzing the HPFL back-up coat provides reliable data, the practical value of the utility model is high, and is easy to utilize.
In sum, the utility model is simple in structure, and is reasonable in design, realizes that convenient and intelligent degree is high, uses simple operation, and data-handling capacity is strong, speed is fast, and test process is safe and reliable, and practical value is high, and is easy to utilize.
Through accompanying drawing and embodiment, the technical scheme of the utility model is done further detailed description below.
Description of drawings
Fig. 1 is the front view of the utility model HPFL back-up coat bond slip proving installation.
Fig. 2 is the right view of Fig. 1.
Description of reference numerals:
The 1-upper plate; The 1-1-slideway; The 2-lower roof plate;
Top board among the 3-; The 4-upper plate; 5-1-first bolt;
5-2-second bolt; The 6-pulley; The 7-ground tackle;
The 8-hold-down bolt; The crashproof rope of 9-; The 10-spacing ring;
The original test specimen of 11-; 12-back-up coat principal rod; The 13-lifting jack;
The 14-load transducer; 15-strain testing instrument; The 16-HPFL back-up coat;
The 17-data collecting instrument; The 18-host computer.
Embodiment
As depicted in figs. 1 and 2; The said HPFL back-up coat 16 of the utility model is arranged on the surperficial midway of original test specimen 11; The embedded back-up coat principal rod 12 that is provided with in the said HPFL back-up coat 16; Said HPFL back-up coat bond slip proving installation comprises test base plate 1, be fixedly connected on test base plate 1 bottom and be used for fixing original test specimen 11 lower roof plate 2, be fixedly connected on the middle top board 3 at test base plate 1 middle part and be slidingly connected at the upper plate 4 of test base plate 1 the first half, and be embedded in HPFL back-up coat 16 with original test specimen 11 binding site places and be used to measure one or more strain testing instruments 15 of HPFL back-up coat 16 and original test specimen 11 binding site places certain distance internal strain; The first half left and right sides symmetry of said test base plate 1 offers two slideway 1-1; The bottom of said upper plate 4 is fixedly connected with two and is used for carrying the pulley 6 that upper plate 4 slides at slideway 1-1; The upper surface of top board 3 is provided with a plurality of spacing rings 10 of supplying back-up coat principal rod 12 to pass of being used in said; The top of top board 3 is provided with and is used to drive the lifting jack 13 that upper plate 4 slides in said; The top of said lifting jack 13 is provided with the load transducer 14 that is used to measure HPFL back-up coat 16 suffered load; Said back-up coat principal rod 12 passes said spacing ring 10 and is fixedly connected with upper plate 4 through ground tackle 7; The bottom of said lower roof plate 2 and side a plurality of hold-down bolts 8 that are used to compress said original test specimen 11 that are threaded; The output terminal of the output terminal of said load transducer 14 and a plurality of said strain testing instruments 15 is connected to the data collecting instrument 17 that is used to gather load transducer 14 and 15 output datas of a plurality of strain testing instruments, and the output terminal of said data collecting instrument 17 is connected to and is used for data that analyzing and processing data Acquisition Instrument 17 exported and the host computer 18 that result is shown synchronously.
As depicted in figs. 1 and 2, in the present embodiment, be connected with the crashproof rope 9 that is used to prevent that said HPFL back-up coat 16 from splashing away when broken on the test base plate 1 between said lower roof plate 2 and middle top board 3.Said strain testing instrument 15 is that guide rod tens(i)ometer and said guide rod tens(i)ometer are 1～6.Particularly, said guide rod tens(i)ometer is four, and wherein two guide rod tens(i)ometers are embedded in HPFL back-up coat 16 tops and original test specimen 11 binding site places, and two other guide rod tens(i)ometer is embedded in HPFL back-up coat 16 bottoms and original test specimen 11 binding site places.Said lower roof plate 2 is fixedly connected on test base plate 1 bottom through the first bolt 5-1, and said middle top board 3 is fixedly connected on test base plate 1 middle part through the second bolt 5-2.The quantity of described spacing ring 10 equates with the quantity of said back-up coat principal rod 12 and is 2～6.Said lifting jack 13 is hydraulic jack or mechanic jacks.
Adopt the utility model to carry out the method for HPFL back-up coat bond slip test, may further comprise the steps:
Step 5, making upper plate 4 are fixed two pulleys 6 in the bottom of said upper plate 4, and upper plate 4 is stuck in the slideway 1-1 on the test base plate 1 through pulley 6, between pulley 6 and slideway 1-1, splash into lubricant, guarantee that upper plate 4 can be free to slide;
Collection, processing and the demonstration of step 11, HPFL back-up coat 16 bond slip performance informations: handle lifting jack 13; Make the rising of lifting jack 13 pistons and apply thrust upwards for upper plate 4; Upper plate 4 applies pulling force upwards for HPFL back-up coat 16 through back-up coat principal rod 12; Start strain testing instrument 15, load transducer 14, data collecting instrument 17 and host computer 18 simultaneously; A plurality of strain testing instruments 15 are measured the interior strain of HPFL back-up coat 16 and original test specimen 11 binding site place strain testing appearance 15 two ends measuring points in real time and detected data are exported to data collecting instrument 17; Load transducer 14 is measured HPFL back-up coat 16 suffered load in real time and detected data is exported to data collecting instrument 17, and data collecting instrument 17 is gathered data that data that a plurality of strain testing instruments 15 are exported and load transducer 14 exported in real time and data are amplified, drawn the strain stress in HPFL back-up coat 16 and the original test specimen 11 binding site place strain testing appearance 15 two ends measuring points after filtering and the A/D conversion
1, ε
2,
ε
nWith HPFL back-up coat 16 suffered load F, and export to host computer 18, said host computer 18 calls data processing module to received strain stress
1, ε
2,
ε
nCarry out comprehensive analysis processing with suffered load F data, obtain HPFL back-up coat 16 bond slip performance informations, the while host computer calls data disaply moudle the bond slip performance information that analyzing and processing draws is shown synchronously; Wherein, n representes that the quantity of strain testing instrument 15 and n are natural number.
Particularly, host computer described in the step 11 18 calls data processing module to received strain stress
1, ε
2,
ε
nCarry out comprehensive analysis processing with suffered load F data, its comprehensive analysis processing process may further comprise the steps:
Step 1101, the host computer 18 and call the data processing module according to the formula:
draw HPFL reinforcement layer 16 is combined with the original position of the specimen 11 strain tester 15 measuring points across the average strain
Step 1102, said host computer 18 call data processing module and according to formula:
draws the end displacement S of HPFL back-up coat 16; Wherein, L representes the distance between the said strain testing instrument 15 two ends measuring points; Particularly, can record the value of L with vernier caliper;
Step 1103, said host computer 18 call data processing module and according to formula: τ=F/A, draw the shear stress τ of HPFL back-up coat 16, and wherein A representes that the name of HPFL back-up coat 16 coheres area; Particularly, A calculates through formula A=CW, and wherein, C representes the length of cohering of HPFL back-up coat 16, and W representes the width that coheres of HPFL back-up coat 16, and the value of C and W all records with vernier caliper; Get when spending and cohere long (wide) degree greater than effectively cohering long (wide) when cohering long (wide) degree;
Step 1104, said host computer 18 call data disaply moudle, and the end displacement S of resulting HPFL back-up coat 16 in the shear stress τ of resulting HPFL back-up coat 16 in the step 1103 and the step 1102 is shown with the form of τ-s curve.
Can set up the bond slip constitutive relation through the utility model, thereby be that the stripping damage mechanism of analyzing the HPFL back-up coat provides reliable data.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of the utility model technical scheme according to the utility model technical spirit.
Claims (7)
1. HPFL back-up coat bond slip proving installation; Said HPFL back-up coat (16) is arranged on the surperficial midway of original test specimen (11); The embedded back-up coat principal rod (12) that is provided with in the said HPFL back-up coat (16); It is characterized in that: comprise test base plate (1), be fixedly connected on test base plate (1) bottom and be used for fixing original test specimen (11) lower roof plate (2), be fixedly connected on the middle top board (3) and the upper plate (4) that is slidingly connected at test base plate (1) the first half at test base plate (1) middle part, and be embedded in HPFL back-up coat (16) with original test specimen (11) binding site place and be used to measure one or more strain testing instruments (15) of HPFL back-up coat (16) and original test specimen (11) binding site place certain distance internal strain; The first half left and right sides symmetry of said test base plate (1) offers two slideways (1-1); The bottom of said upper plate (4) is fixedly connected with two and is used for carrying the pulley (6) that upper plate (4) slides at slideway (1-1); The upper surface of top board (3) is provided with a plurality of spacing rings (10) of supplying back-up coat principal rod (12) to pass of being used in said; The top of top board (3) is provided with and is used to drive the lifting jack (13) that upper plate (4) slides in said; The top of said lifting jack (13) is provided with the load transducer (14) that is used to measure the suffered load of HPFL back-up coat (16); Said back-up coat principal rod (12) passes said spacing ring (10) and is fixedly connected with upper plate (4) through ground tackle (7); The bottom of said lower roof plate (2) and side a plurality of hold-down bolts (8) that are used to compress said original test specimen (11) that are threaded; The output terminal of the output terminal of said load transducer (14) and a plurality of said strain testing instruments (15) is connected to the data collecting instrument (17) that is used to gather load transducer (14) and a plurality of strain testing instrument (15) institute output data, and the output terminal of said data collecting instrument (17) is connected to and is used for data that analyzing and processing data Acquisition Instrument (17) exported and the host computer (18) that result is shown synchronously.
2. according to the described HPFL back-up coat of claim 1 bond slip proving installation, it is characterized in that: be arranged in and be connected with the crashproof rope (9) that is used to prevent that said HPFL back-up coat (16) from splashing away when broken on the test base plate (1) between said lower roof plate (2) and the top board (3).
3. according to the described HPFL back-up coat of claim 2 bond slip proving installation, it is characterized in that: said strain testing instrument (15) is that guide rod tens(i)ometer and said guide rod tens(i)ometer are 1～6.
4. according to the described HPFL back-up coat of claim 3 bond slip proving installation; It is characterized in that: said guide rod tens(i)ometer is four; Wherein two guide rod tens(i)ometers are embedded in HPFL back-up coat (16) top and original test specimen (11) binding site place, and two other guide rod tens(i)ometer is embedded in HPFL back-up coat (16) bottom and original test specimen (11) binding site place.
5. according to the described HPFL back-up coat of arbitrary claim bond slip proving installation in the claim 1～4; It is characterized in that: said lower roof plate (2) is fixedly connected on test base plate (1) bottom through first bolt (5-1), and said middle top board (3) is fixedly connected on test base plate (1) middle part through second bolt (5-2).
6. according to the described HPFL back-up coat of arbitrary claim bond slip proving installation in the claim 1～4, it is characterized in that: the quantity of described spacing ring (10) equates with the quantity of said back-up coat principal rod (12) and is 2～6.
7. according to the described HPFL back-up coat of arbitrary claim bond slip proving installation in the claim 1～4, it is characterized in that: said lifting jack (13) is hydraulic jack or mechanic jacks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200159279U CN202421047U (en) | 2012-01-14 | 2012-01-14 | HPFL (High Performance Ferrocement Laminate) strengthening layer bond-slip testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200159279U CN202421047U (en) | 2012-01-14 | 2012-01-14 | HPFL (High Performance Ferrocement Laminate) strengthening layer bond-slip testing device |
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| Publication Number | Publication Date |
|---|---|
| CN202421047U true CN202421047U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200159279U Expired - Fee Related CN202421047U (en) | 2012-01-14 | 2012-01-14 | HPFL (High Performance Ferrocement Laminate) strengthening layer bond-slip testing device |
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| Country | Link |
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| CN (1) | CN202421047U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590081A (en) * | 2012-01-14 | 2012-07-18 | 长安大学 | High-performance ferrocement laminate (HPFL) reinforcement layer bond slip test device and method |
| CN105486634A (en) * | 2016-01-15 | 2016-04-13 | 郑州大学 | Steel fiber pull-out bond testing system and testing method |
-
2012
- 2012-01-14 CN CN2012200159279U patent/CN202421047U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590081A (en) * | 2012-01-14 | 2012-07-18 | 长安大学 | High-performance ferrocement laminate (HPFL) reinforcement layer bond slip test device and method |
| CN105486634A (en) * | 2016-01-15 | 2016-04-13 | 郑州大学 | Steel fiber pull-out bond testing system and testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20150114 |
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| EXPY | Termination of patent right or utility model |