CN106769847A - FRP sticking strength comprehensive testers - Google Patents

FRP sticking strength comprehensive testers Download PDF

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Publication number
CN106769847A
CN106769847A CN201611237087.XA CN201611237087A CN106769847A CN 106769847 A CN106769847 A CN 106769847A CN 201611237087 A CN201611237087 A CN 201611237087A CN 106769847 A CN106769847 A CN 106769847A
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CN
China
Prior art keywords
plate
fixed charge
test
sliding panel
frp
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CN201611237087.XA
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Chinese (zh)
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CN106769847B (en
Inventor
任伟
盖轶婷
赵煜
闫磊
钟毅
李平
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Changan University
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Changan University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00Investigating materials by mechanical methods
    • G01N19/04Measuring adhesive force between materials, e.g. of sealing tape, of coating
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical means
    • G01B5/02Measuring arrangements characterised by the use of mechanical means for measuring length, width or thickness

Abstract

The invention discloses FRP sticking strength comprehensive testers, sliding panel is located between the first fixed charge method end plate and the second fixed charge method end plate, and the first fixed charge method end plate, sliding panel and the second fixed charge method end plate are placed in parallel;First test member, the second test member are each passed through the two ends of the second fixed charge method end plate and sliding panel, are fixed on the second fixed charge method end plate;Four two ends of guide post are fixedly connected with the first fixed charge method end plate, the second fixed charge method end plate respectively, and four guide posts are each passed through sliding panel, and four guide pipes are symmetrical arranged;Concrete component is arranged between the first test member and the second test member;Pressure sensor and jack are provided between concrete component and the second fixed charge method end plate;Sliding panel is provided with electromechanical dial gauge.The present invention, while made to the adherence force and slippage between FRP and concrete and accurately being measured with the data collecting instruments of TDS 530, pressure sensor and electromechanical dial gauge, realizes the multifunctional tester of one by the way of oil pump, jack voltage supply.

Description

FRP sticking strength comprehensive testers
Technical field
The invention belongs to intensity, displacement measurement technical field, it is related to a kind of tester, it is particularly a kind of to be directed to FRP- coagulations Soil Interface sticking strength and the comprehensive tester of sliding.
Background technology
Intensity, displacement measurement instrument are a kind of electromechanical test apparatuses of common requirements in building industry, and it has high accuracy, height The advantageous feature of stability, high efficiency.Current fiber reinforced concrete technology is at home and abroad widely used, should The key of technology is exactly the sticking effect of FRP- concrete interfaces.And the method for testing of FRP- concrete interface sticking strengths is always Since be all difficult point, particular without portable site test device.Based on this problem, simply and easily FRP sticking strengths Comprehensive tester just turns into the new market demand.Only part research institution proposes normal direction stickup test device at present, and right Pure shear test instrument in true simulation concrete cracking area is not yet reported that.The present invention is based on double-shear principle, simulates The true force-transmission mechanism of FRP- concrete interfaces, effect is truer, more direct.
The content of the invention
It is an object of the invention to provide a kind of FRP sticking strengths comprehensive tester, solve to paste FRP concrete stabilizing technologies Median surface sticking strength and the test problem of sliding.
FRP sticking strength comprehensive testers, the test object of the tester is the first test member and the second test structure Part, including the first fixed charge method end plate, the second fixed charge method end plate, sliding panel, four guide posts, the sliding panel are located at the first fixed charge method end plate And second between fixed charge method end plate, and the first fixed charge method end plate, sliding panel and the second fixed charge method end plate are placed in parallel;
First test member, the second test member are each passed through the two ends of the second fixed charge method end plate and sliding panel, and solid Due to the second fixed charge method end plate;
The two ends of four guide posts are fixedly connected with the first fixed charge method end plate, the second fixed charge method end plate respectively, four guiding Bar is each passed through sliding panel, and four guide pipes are symmetrical arranged;
The concrete component is arranged between the first test member and the second test member;
Pressure sensor and jack are provided between the concrete component and the second fixed charge method end plate;
The sliding panel is provided with electromechanical dial gauge.
Further, first fixed charge method end plate, the second fixed charge method end plate are identical with the size dimension of sliding panel, and first solid Four angles of fixed end plate, the second fixed charge method end plate and sliding panel all offer circular hole.
Further, the two ends of second fixed charge method end plate and sliding panel all offer strip opening.
Further, first test member is fixed by intermediate plate and bolt with the second fixed charge method end plate;Second test structure Part is fixed by intermediate plate and bolt with the second fixed charge method end plate.
Further, the pressure sensor and jack are arranged on the axis of concrete component.
Compared with prior art, the present invention has following technique effect:
(1) FRP sticking strengths comprehensive tester of the invention is by the way of oil pump, jack voltage supply, while using TDS- 530 data collecting instruments, pressure sensor and electromechanical dial gauge are made precisely to the adherence force and slippage between FRP and concrete Measurement, realize the multifunctional tester of one, the FRP- concrete interfaces for solving indoor scientific experiment and job site are pasted The test problem of effect;
(2) the electromechanical dial gauge in the present invention is fixed on sliding panel, and FRP stretches out the i.e. concrete end in place and fixes a positioning Piece, it is electromechanical when initial that dial gauge is unstressed with spacer contacts, when occurring sliding between FRP and concrete, electromechanical dial gauge Can accurately be measured by TDS530, this not only embodies the multifunctionality of this covering device, moreover it is possible to prominent its accuracy;
(3) using jack force, power is transmitted to pressure sensor and is transmitted to by pressure sensor again the present invention by jack Concrete sample, and pressure sensor data is read using TDS-530 data collecting instruments, and store so that test of the invention The more efficient and accurate stabilization of instrument;
(4) present invention is easy to processing, is easy to carry, and Costco Wholesale is relatively low, used to be commercially more conducive to promote.
Brief description of the drawings
Fig. 1 is structural representation of the invention;
Fig. 2 is tester plan;
Fig. 3 is intermediate plate schematic diagram;
The implication of each label in figure:The fixed charge method end plates of 1- first;2- sliding panels;The fixed charge method end plates of 3- second;4,5- guide posts; 6- concrete components;The test members of 7- first;8- electromechanics dial gauges;9- electromechanics dial gauge pedestals;10- pressure sensors;11— Concrete support plate;12- jack;13-intermediate plate;14-bolt;15-the second test member.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
Embodiment
Referring to Fig. 1~Fig. 3, the present embodiment includes:Including the first fixed charge method end plate 1, the second fixed charge method end plate 3, sliding panel 2, four Root guide post 4,5, the first test member 7, the second test member 15, concrete component 6, the sliding panel 2 are located at first and fix Between the fixed charge method end plate 3 of end plate 1 and second, and the first fixed charge method end plate 1, the fixed charge method end plate 3 of sliding panel 2 and second are placed in parallel;
The test member 15 of first test member 7 and second is FRP components;
First test member 7, the second test member 15 are each passed through the two ends of the second fixed charge method end plate 3 and sliding panel 2, And it is fixed on the second fixed charge method end plate 3;
Specifically, second fixed charge method end plate 3 and sliding panel 2 are opened all offering strip at left and right edges 57.5mm Mouthful, first test member 7, the second test member 15 are respectively by the way that strip opening is through the second fixed charge method end plate 3 and slides Plate 2, and it is fixed on the second fixed charge method end plate 3;
The one of implementation method of the present embodiment is that strip opening is that length is 100mm, and width is the strip of 5mm Opening;
The two ends of four guide posts 4,5 are fixedly connected with the first fixed charge method end plate 1, the second fixed charge method end plate 3 respectively, four Guide post 4,5 is each passed through sliding panel 2, and four guide pipes 4,5 are symmetrical arranged;
First fixed charge method end plate 1, the second fixed charge method end plate 3 are identical with the size dimension of sliding panel 2, and the first fixed charge method end plate 1st, four angles of the second fixed charge method end plate 3 and sliding panel 2 all offer a diameter of 20mm circular holes in order to four cylindrical guide bars Pass through.
The concrete component 6 is arranged between the first test member 7 and the second test member 15;The concrete component 6 are placed on underlying two guide posts by concrete support plate 11, and the smooth purpose in the surface of concrete support plate 11 It is to reduce concrete and the friction between it.
Pressure sensor 12 and jack 10 are provided between the fixed charge method end plate 3 of the concrete component 6 and second;The pressure Sensor 12 and jack 10 are arranged on makes concrete axial compression on the axis of concrete component 6, otherwise eccentric compression will Along unbalance stress so as to weaken the bearing capacity of test member (FRP) under causing in test member (FRP).
The sliding panel 2 is provided with electromechanical dial gauge pedestal 9, and electromechanical dial gauge 8 passes through electromechanical dial gauge pedestal 9 and is fixed on On sliding panel, end of any one of the test member 15 of first test member 7 and second is provided with spacer, electromechanical percentage Table 8 is unstressed with spacer to be contacted, and when occurring sliding between FRP and concrete, electromechanical dial gauge can be by TDS530 essences True measurement.
Specific work process:Red, green, black, white line on high-precision pressure sensor 10 is connected on TDS-530 data successively On Acquisition Instrument, the then oil pump of jack 12.The applying power of jack 12 is given by by pressure oil pump, the one end of jack 12 is ined succession and second consolidated Fixed end plate 3, the other end is ined succession pressure sensor 10, and pressure sensor includes power simultaneously will on TDS-530 data collecting instruments Power is transmitted to sliding panel 2 and is transmitted to concrete component 6 again.First and second test member (FRP) is cast in the both sides of concrete component 6, Its curing time is one week, and test member (FRP) is 1 centimeter with the spacing in the outside of concrete component 6.When concrete component 6 is received During power, because test member (FRP) is ined succession on the first fixed charge method end plate 1, and with intermediate plate 13 and the anchor of bolt 14, so surveying Examination component (FRP) can limit the outside side shifting of concrete component.With the continuous applying power of oil pump, TDS-530 data collecting instruments Moment shows the change of power, and test member (FRP) can produce stretching and produce sliding with concrete.Spacer is mounted in survey Locate when concrete component is stretched out in examination component (FRP), start with electromechanics dial gauge be it is unstressed contact, when concrete component stress to During outer Slideslip, test member (FRP) can limit its slip, and when power increases to certain degree, test member (FRP) can be with Concrete produces sliding, and now electromechanical dial gauge just can measure its slippage.
Conventional method is that jack is placed in the middle of two concrete test blocks, Manual pressurizing jack, then by very heavy Oil pressure gauge on top is obtained to concrete pressure applied, and precision is not high enough.For this device, TDS- is increased 530 data collecting instruments and pressure sensor, TDS-530 data collecting instruments measurement range can reach ± 640000 microstrains, often The measurement point measured for 0.4 second can reach at 1000 points, substantially increase experimental precision and efficiency.

Claims (5)

1.FRP sticking strength comprehensive testers, the test object of the tester is the first test member (7) and the second test structure Part (15), it is characterised in that including the first fixed charge method end plate (1), the second fixed charge method end plate (3), sliding panel (2), four guide posts (4, 5), the sliding panel (2) is between the first fixed charge method end plate (1) and the second fixed charge method end plate (3), and the first fixed charge method end plate (1), cunning Dynamic plate (2) and the second fixed charge method end plate (3) are placed in parallel;
First test member (7), the second test member (15) are each passed through the second fixed charge method end plate (3) and sliding panel (2) Two ends, and it is fixed on the second fixed charge method end plate (3);
The two ends of four guide posts (4,5) are fixedly connected with the first fixed charge method end plate (1), the second fixed charge method end plate (3) respectively, and four Root guide post (4,5) is each passed through sliding panel (2), and four guide pipes (4,5) are symmetrical arranged;
The concrete component (6) is arranged between the first test member (7) and the second test member (15);
Pressure sensor (12) and jack (10) are provided between the concrete component (6) and the second fixed charge method end plate (3);
The sliding panel (2) is provided with electromechanical dial gauge (8).
2. FRP sticking strengths comprehensive tester as claimed in claim 1, it is characterised in that first fixed charge method end plate (1), Second fixed charge method end plate (3) is identical with the size dimension of sliding panel (2), and the first fixed charge method end plate (1), the second fixed charge method end plate (3) and Four angles of sliding panel (2) all offer circular hole.
3. FRP sticking strengths comprehensive tester as claimed in claim 1, it is characterised in that second fixed charge method end plate (3) and The two ends of sliding panel (2) all offer strip opening.
4. FRP sticking strengths comprehensive tester as claimed in claim 1, it is characterised in that first test member (7) is led to Cross intermediate plate (13) and bolt (14) fixed with the second fixed charge method end plate (3);Second test member (15) is by intermediate plate (13) and bolt (14) it is fixed with the second fixed charge method end plate (3).
5. FRP sticking strengths comprehensive tester as claimed in claim 1, it is characterised in that the pressure sensor (12) and Jack (10) is arranged on the axis of concrete component (6).
CN201611237087.XA 2016-12-28 2016-12-28 FRP sticking strength comprehensive tester Active CN106769847B (en)

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CN201611237087.XA CN106769847B (en) 2016-12-28 2016-12-28 FRP sticking strength comprehensive tester

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108693110A (en) * 2018-08-01 2018-10-23 北方工业大学 A kind of sliding test device and FRP sheet materials and concrete binding pilot system
CN109187227A (en) * 2018-09-10 2019-01-11 重庆大学 A kind of masonry and concrete interface shear strength test device and its test method
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
CN110701984A (en) * 2019-11-16 2020-01-17 焦作大学 Comprehensive detection system for structural strength of destructive camshaft and use method

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CN205593860U (en) * 2016-05-15 2016-09-21 中南大学 Experimental experiment loading device of carbon cloth double shear

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108693110A (en) * 2018-08-01 2018-10-23 北方工业大学 A kind of sliding test device and FRP sheet materials and concrete binding pilot system
CN109187227A (en) * 2018-09-10 2019-01-11 重庆大学 A kind of masonry and concrete interface shear strength test device and its test method
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
CN110701984A (en) * 2019-11-16 2020-01-17 焦作大学 Comprehensive detection system for structural strength of destructive camshaft and use method
CN110701984B (en) * 2019-11-16 2021-04-13 焦作大学 Comprehensive detection system for structural strength of destructive camshaft and use method

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