CN102590081A - High-performance ferrocement laminate (HPFL) reinforcement layer bond slip test device and method - Google Patents
High-performance ferrocement laminate (HPFL) reinforcement layer bond slip test device and method Download PDFInfo
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- CN102590081A CN102590081A CN2012100109289A CN201210010928A CN102590081A CN 102590081 A CN102590081 A CN 102590081A CN 2012100109289 A CN2012100109289 A CN 2012100109289A CN 201210010928 A CN201210010928 A CN 201210010928A CN 102590081 A CN102590081 A CN 102590081A
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Abstract
The invention discloses a high-performance ferrocement laminate (HPFL) reinforcement layer bond slip test device and method. The HPFL reinforcement layer bond slip test device comprises a test bottom plate, a lower top plate, a middle top plate, an upper top plate, a strain test instrument, a load sensor, a data acquisition instrument and a host computer. The method comprises the following steps of: laying bearing bars of the reinforcement layer on an original test piece to form an HPFL reinforcement layer; making the test bottom plate; making and fixing the lower top plate; making and fixing the middle top plate; making the upper top plate and clamping the upper top plate in a slideway; arranging the original test piece between the lower top plate and the middle top plate; placing a jack on the top of the middle top plate; mounting the load sensor on the top of the jack; fixing the bearing bars of the reinforcement layer and the upper top plate; connecting the strain test instrument, the load sensor, the data acquisition instrument and the host computer; and acquiring, processing and displaying the bond slip performance of the HPFL reinforcement layer. The HPFL reinforcement layer bond slip test device and method have the advantages of reasonable design, high intelligent degree, convenience in operation, safe and reliable test process and high practical value.
Description
Technical field
The present invention relates to civil engineering work method of testing technical field, especially relate to a kind of HPFL back-up coat bond slip proving installation and method.
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.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of simple in structure, reasonable in design to above-mentioned deficiency of the prior art, installs and realizes HPFL back-up coat bond slip proving installation easily.
For solving the problems of the technologies described above; The technical scheme that the present invention 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 present invention also provides a kind of method of using HPFL back-up coat bond slip test easy and simple to handle, that data rate is fast and data-handling capacity is strong, practical value is high, it is characterized in that this method may further comprise the steps:
Step 5, making upper plate are fixed two pulleys in the bottom of said upper plate, and upper plate is stuck in the slideway on the test base plate through pulley, between pulley and slideway, splash into lubricant, guarantee that upper plate can be free to slide;
Collection, processing and the demonstration of step 11, HPFL back-up coat bond slip performance information: handle lifting jack; Make the jack piston rising and apply thrust upwards to upper plate; Upper plate applies pulling force upwards for the HPFL back-up coat through the back-up coat principal rod; Start strain testing instrument, load transducer, data collecting instrument and host computer simultaneously; A plurality of strain testing instruments are measured the strain in HPFL back-up coat and the original test specimen binding site place strain testing appearance two ends measuring point in real time and detected data are exported to data collecting instrument; Load transducer is measured the suffered load of HPFL back-up coat in real time and detected data is exported to data collecting instrument, and data collecting instrument is gathered data that data that a plurality of strain testing instruments are exported and load transducer export in real time and data are amplified, drawn the strain stress in HPFL back-up coat and the original test specimen binding site place strain testing appearance two ends measuring point after filtering and the A/D conversion
1, ε
2..., ε
nWith the suffered load F of HPFL back-up coat, and export to host computer, said host computer 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 bond slip performance information, 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 and n are natural number.
Above-mentioned HPFL back-up coat bond slip method of testing, it is characterized in that: host computer described in the step 11 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, called the host computer and data processing module according to the formula:
draw HPFL reinforcement layer combined with the original position of the specimen strain tester (15) ends of the measuring point average strain
Step 1102, said host computer call data processing module and according to formula:
draws the end displacement S of HPFL back-up coat; Wherein, L representes the distance between the measuring point of said strain testing instrument two ends;
Step 1103, said host computer call data processing module and according to formula: τ=F/A, draw the shear stress τ of HPFL back-up coat, and wherein A representes that the name of HPFL back-up coat coheres area;
Step 1104, said host computer call data disaply moudle, and the end displacement S of resulting HPFL back-up coat in the shear stress τ of resulting HPFL back-up coat in the step and the step is shown with the form of τ-s curve.
The present invention compared with prior art has the following advantages:
1, the present invention 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, proving installation used in the present invention is simple in structure, and is reasonable in design, installs and realizes that convenient and intelligent degree is high.
3, the present invention uses simple operation, and data-handling capacity is strong, speed is fast.
4, the present invention 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 present invention, thereby for the stripping damage mechanism of analyzing the HPFL back-up coat provides reliable data, practical value of the present invention is high, and is easy to utilize.
In sum, the present invention 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, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 is the front view of HPFL back-up coat bond slip proving installation of the present invention.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the method flow diagram of HPFL back-up coat bond slip method of testing of the present invention.
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; HPFL back-up coat bond slip proving installation of the present invention; 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; 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.
In conjunction with Fig. 3, HPFL back-up coat bond slip proving installation of the present invention carries 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.
In the present embodiment, 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 present invention, thereby be that the stripping damage mechanism of analyzing the HPFL back-up coat provides reliable data.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any restriction, every technical spirit changes any simple modification, change and the equivalent structure that above embodiment did according to the present invention, all still belongs in the protection domain of technical scheme of the present invention.
Claims (9)
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.
8. a utilization is characterized in that as carry out the method for HPFL back-up coat bond slip test according to the said device of claim 1 this method may further comprise the steps:
Step 1, original test specimen (11) carried out surface treatment after; At first go up and lay back-up coat principal rod (12) at original test specimen (11); With setscrew back-up coat principal rod (12) is anchored on the original test specimen (11), spreads High Performance Mortar in the surperficial midway of original test specimen (11) then and constitute HPFL back-up coat (16);
Step 2, making test base plate (1);
Step 3, making lower roof plate (2) also are fixedly connected on test base plate (1) bottom through first bolt (5-1) with lower roof plate (2);
Top board (3) also is fixedly connected on test base plate (1) middle part through second bolt (5-2) with middle top board (3) in step 4, the making;
Step 5, making upper plate (4); Fixing two pulleys (6) in the bottom of said upper plate (4); And upper plate (4) is stuck in the slideway (1-1) in test base plate (1) through pulley (6), between pulley (6) and slideway (1-1), splashing into lubricant, assurance upper plate (4) can be free to slide;
Step 6, original test specimen (11) is placed between lower roof plate (2) and the top board (3), tighten hold-down bolt (8), make original test specimen (11) firm fixation between lower roof plate (2) and middle top board (3), buckle said crashproof rope (9);
Step 7, with said lifting jack (13) be placed on said in the top of top board (3);
Step 8, said load transducer (14) is installed in the top of said lifting jack (13), and the top of load transducer (14) is contacted with the bottom of upper plate (4);
Step 9, back-up coat principal rod (12) is passed said spacing ring (10), and be fixedly connected with upper plate (4) with the top of ground tackle (7) with said back-up coat principal rod (12);
Step 10, the output terminal of said strain testing instrument (15) and the output terminal of load transducer (14) all are connected through the input end of lead with data collecting instrument (17), the output terminal of said data collecting instrument (17) is connected with host computer (18);
Collection, processing and the demonstration of step 11, HPFL back-up coat (16) bond slip performance information: handle lifting jack (13); Make the rising of lifting jack (13) piston 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 strain in HPFL back-up coat (16) and original test specimen (11) binding site place strain testing appearance (15) the two ends measuring point in real time and detected data are exported to data collecting instrument (17); Load transducer (14) is measured the suffered load of HPFL back-up coat (16) 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 the strain stress in HPFL back-up coat (16) and original test specimen (11) binding site place strain testing appearance (15) the two ends measuring point is amplified, drawn after filtering and the A/D conversion to data
1, ε
2..., ε
nWith the suffered load F of HPFL back-up coat (16), 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 information, 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.
9. according to the described method of claim 8, it is characterized in that: 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 calls the data processing module according to the equation:
draw HPFL reinforcement layer (16) with the original specimen (11) combined with location strain tester (15) measured across point average strain within
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 measuring point of said strain testing instrument (15) two ends;
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;
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.
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| CN103954200A (en) * | 2014-05-15 | 2014-07-30 | 沈阳建筑大学 | Method of FRP reinforced concrete bond slip test |
| CN104122201A (en) * | 2014-07-01 | 2014-10-29 | 三峡大学 | Device for measuring bond stress and slippage of reinforced concrete |
| CN104655563A (en) * | 2015-02-16 | 2015-05-27 | 林国海 | Drawing testing device |
| RU2615720C2 (en) * | 2015-08-03 | 2017-04-07 | Виталий Викторович Борисов | Device for samples production for determination of multilayer protective dental splint (mouth guard) layer heat sealing strength |
| CN107084880A (en) * | 2017-06-05 | 2017-08-22 | 东南大学 | A kind of method for measuring reinforcing bar and cement-base composite material bond and anchor property |
| CN110426344A (en) * | 2019-08-26 | 2019-11-08 | 河海大学 | A kind of self-balancing type reinforcing bar and concrete binding sliding test device and test method |
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| CN103954200A (en) * | 2014-05-15 | 2014-07-30 | 沈阳建筑大学 | Method of FRP reinforced concrete bond slip test |
| CN104122201A (en) * | 2014-07-01 | 2014-10-29 | 三峡大学 | Device for measuring bond stress and slippage of reinforced concrete |
| CN104655563A (en) * | 2015-02-16 | 2015-05-27 | 林国海 | Drawing testing device |
| CN104655563B (en) * | 2015-02-16 | 2017-06-30 | 林国海 | A kind of pull-out test device |
| RU2615720C2 (en) * | 2015-08-03 | 2017-04-07 | Виталий Викторович Борисов | Device for samples production for determination of multilayer protective dental splint (mouth guard) layer heat sealing strength |
| CN107084880A (en) * | 2017-06-05 | 2017-08-22 | 东南大学 | A kind of method for measuring reinforcing bar and cement-base composite material bond and anchor property |
| CN107084880B (en) * | 2017-06-05 | 2019-07-30 | 东南大学 | A method of measurement reinforcing bar and cement-base composite material bond and anchor property |
| CN110426344A (en) * | 2019-08-26 | 2019-11-08 | 河海大学 | A kind of self-balancing type reinforcing bar and concrete binding sliding test device and test method |
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