CN204346834U - A kind of for FRP muscle dynamic tensile fatigue experimental device - Google Patents
A kind of for FRP muscle dynamic tensile fatigue experimental device Download PDFInfo
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- CN204346834U CN204346834U CN201520043262.6U CN201520043262U CN204346834U CN 204346834 U CN204346834 U CN 204346834U CN 201520043262 U CN201520043262 U CN 201520043262U CN 204346834 U CN204346834 U CN 204346834U
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- frp muscle
- cast
- tensile fatigue
- situ concrete
- round tube
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Abstract
The utility model discloses a kind of for FRP muscle dynamic tensile fatigue experimental device, comprise cast-in-situ concrete beam, groove is had in the middle of its underpart, the both sides that its underpart is positioned at groove have beam-ends arm respectively, two beam-ends arm Corresponding matchings have round tube hole, can place the intermediate plate of suitable dimension in round tube hole according to member diameters size.The utility model coordinates electro-hydraulic servo fatigue test of structure system to use, can be used for carrying out tensile fatigue test to FRP muscle, the beam-ends arm at two ends, cast-in-situ concrete beam bottom is for completing the fixing of FRP muscle body, during use, the FRP muscle body being positioned at extended state is anchored on the round tube hole of two beam-ends arms by clip and intermediate plate effect; Sensing device is provided with in the groove of cast-in-situ concrete beam bottom, the concrete test block can measuring groove top when FRP muscle body carries out tensile fatigue test is stressed, there is not tension in this concrete in Control experiment, control to be conducive to auxiliary whole tensile fatigue test by structure stress.
Description
Technical field
The utility model relates to a kind of for FRP muscle dynamic tensile torture test servicing unit, particularly relates to a kind of dynamic tensile fatigue experimental device utilizing electro-hydraulic servo fatigue test of structure system to carry out.
Background technology
Dynamic tensile torture test is a kind of important means measuring material extending fatigue behaviour, is widely applied in the field such as construction work, mechanical engineering.At present, the main method measuring MATERIALS ' DYNAMIC tensile fatigue performance is stricter to diametric requirements, when measuring FRP muscle body tensile fatigue, often coordinate electro-hydraulic servo fatigue test of structure system, and traditional experiment system does not have the special servicing unit for FRP muscle body, its FRP muscle body is easily moved in test, or by External force interference, thus affect the test of tensile fatigue, and traditional experiment system does not have mechanical force measuring machine, and its accuracy is often poor.
Below work by grant of national natural science foundation, bullets: 51278391, project name: FRP soil nailing static and dynamic characteristics of mechanics and Study on mechanism.
Utility model content
For the weak point that prior art exists, the purpose of this utility model is to provide a kind of for FRP muscle dynamic tensile fatigue experimental device, and this device coordinates electro-hydraulic servo fatigue test of structure system to use, and can improve the effect of tensile fatigue test.
The purpose of this utility model is achieved through the following technical solutions:
One is used for FRP muscle dynamic tensile fatigue experimental device, comprises cast-in-situ concrete beam, and has groove in the middle of the bottom of cast-in-situ concrete beam, the both sides that cast-in-situ concrete beam bottom is positioned at groove have beam-ends arm respectively, and two beam-ends arm Corresponding matchings have round tube hole.Be connected with several clips at round tube hole inwall, the bottom of described cast-in-situ concrete beam is provided with sensing device, and this sensing device is arranged in groove.
In order to realize the utility model better, being connected with two clips in the round tube hole of each beam-ends arm of the utility model, clip is provided with setting nut.
Further technical scheme is: the axis of described sensing device overlaps with the axis of described groove.
As preferably, described sensing device is installed on the bottom of cast-in-situ concrete beam.
The utility model preferred sensing device structure is as follows: its sensing device built-in fiber bragg grating sensing, two kinds of sensing equipments, sensing detection position is near the central axis of round tube hole.
Preferred round tube hole structure technology scheme is further: the round tube hole central axis of two beam-ends arms is located along the same line.
As preferably, the diameter of described round tube hole is 25 ~ 35mm.
As preferably, the length of described cast-in-situ concrete beam is 700 ~ 900mm, and width is 150 ~ 250mm, is highly 350 ~ 450mm, and the height value of described groove is the half of cast-in-situ concrete beam height value.
The utility model comparatively prior art is compared, and has the following advantages and beneficial effect:
The utility model coordinates electro-hydraulic servo fatigue test of structure system to use, may be used for tensile fatigue test, the beam-ends arm at two ends, cast-in-situ concrete beam bottom is for completing the stretched operation of FRP muscle body, during use, the FRP muscle body being positioned at extended state is anchored on the round tube hole of two beam-ends arms by clip; Be provided with sensing device in the groove of cast-in-situ concrete beam bottom, this sensing device can carry out the stressed measurement of tensile fatigue test bulking block to FRP muscle body, is conducive to auxiliary whole tensile fatigue test, improves the accuracy rate of test.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation that Fig. 1 overlooks direction;
Fig. 3 is the structural representation of the left apparent direction of Fig. 1.
Wherein, the name corresponding to the Reference numeral in accompanying drawing is called:
1-cast-in-situ concrete beam, 2-groove, 3-beam-ends arm, 31-round tube hole, 4-clip, 5-setting nut, 6-sensing device.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail:
Embodiment
As shown in FIG. 1 to 3, a kind of for FRP muscle dynamic tensile fatigue experimental device, comprise cast-in-situ concrete beam 1, groove 2 is had in the middle of the bottom of cast-in-situ concrete beam 1, the both sides that cast-in-situ concrete beam 1 bottom is positioned at groove 2 have beam-ends arm 3, two beam-ends arm 3 Corresponding matchings respectively and have round tube hole 31; Be connected with several clips 4 at round tube hole 31 inwall, the bottom of cast-in-situ concrete beam 1 is provided with sensing device 6, and this sensing device 6 is arranged in groove 2.Round tube hole 31 of the present utility model be FRP muscle body penetrate through hole, during use, FRP muscle body is penetrated in round tube hole 31, then fixes FRP muscle body by clip 4.
Be connected with two clips 4 in the round tube hole 31 of each beam-ends arm 3, clip 4 is provided with setting nut 5.The tightening operation of FRP muscle body is realized by setting nut 5, during use, is controlled the tightness of clip 4 by setting nut 5, to realize FRP muscle body to be fixed in round tube hole 31 tightly, so just can remove the fatigue strength after measuring the stretching of FRP muscle body.
As shown in Figure 1, the axis of sensing device 6 overlaps with the axis of groove 2, and such sensing device 6 just can measure for the center torque strength of the FRP muscle body be held in the middle of two beam-ends arms 3.
Sensing device 6 of the present utility model is installed on the bottom of cast-in-situ concrete beam 1.
As shown in Figure 1, sensing device 6 is made up of outer subsides foil gauge and built-in fiber grating sensor.
As shown in Figure 1 and Figure 2, round tube hole 31 central axis of two beam-ends arms 3 is located along the same line, and ensures FRP muscle body so on the same line successfully through the round tube hole 31 of two beam-ends arms 3.
The diameter of the preferred round tube hole 31 of the utility model is 25 ~ 35mm.
The length of the preferred cast-in-situ concrete beam 1 of the utility model is 700 ~ 900mm, and width is 150 ~ 250mm, is highly 350 ~ 450mm, and the height value of groove 2 is the half of cast-in-situ concrete beam 1 height value.As the utility model preferred embodiment: the length of cast-in-situ concrete beam 1 is 800mm, and width is 200mm, is highly 400mm, the height of groove 2 is 200mm.
Above-mentioned embodiment is a preferred embodiment of the present utility model; be not for limiting enforcement of the present utility model and interest field; all equivalences made according to the content described in the utility model patent protection scope change and approximate replacement, all should drop in protection domain of the present utility model.
Claims (7)
1. one kind for FRP muscle dynamic tensile fatigue experimental device, it is characterized in that: comprise cast-in-situ concrete beam (1), groove (2) is had in the middle of the bottom of cast-in-situ concrete beam (1), the both sides that cast-in-situ concrete beam (1) bottom is positioned at groove (2) have beam-ends arm (3) respectively, and two beam-ends arm (3) Corresponding matchings have round tube hole (31); Be connected with several clips (4) at round tube hole (31) inwall, the bottom of described cast-in-situ concrete beam (1) is provided with sensing device (6), and this sensing device (6) is arranged in groove (2).
2. be used for FRP muscle dynamic tensile fatigue experimental device according to one according to claim 1, it is characterized in that: be connected with two clips (4) in the round tube hole (31) of each beam-ends arm (3), clip (4) is provided with setting nut (5).
3. be used for FRP muscle dynamic tensile fatigue experimental device according to one according to claim 1, it is characterized in that: the axis of described sensing device (6) overlaps with the axis of described groove (2).
4. be used for FRP muscle dynamic tensile fatigue experimental device according to the one described in claim 1 or 3, it is characterized in that: described sensing device (6) is installed on the bottom of cast-in-situ concrete beam (1).
5. be used for FRP muscle dynamic tensile fatigue experimental device according to one according to claim 1, it is characterized in that: round tube hole (31) central axis of two beam-ends arms (3) is located along the same line.
6. be used for FRP muscle dynamic tensile fatigue experimental device according to the one described in claim 1 or 5, it is characterized in that: the diameter of described round tube hole (31) is 25 ~ 35mm.
7. be used for FRP muscle dynamic tensile fatigue experimental device according to one according to claim 1, it is characterized in that: the length of described cast-in-situ concrete beam (1) is 700 ~ 900mm, width is 150 ~ 250mm, be highly 350 ~ 450mm, the height value of described groove (2) is the half of cast-in-situ concrete beam (1) height value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520043262.6U CN204346834U (en) | 2015-01-22 | 2015-01-22 | A kind of for FRP muscle dynamic tensile fatigue experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520043262.6U CN204346834U (en) | 2015-01-22 | 2015-01-22 | A kind of for FRP muscle dynamic tensile fatigue experimental device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204346834U true CN204346834U (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520043262.6U Expired - Fee Related CN204346834U (en) | 2015-01-22 | 2015-01-22 | A kind of for FRP muscle dynamic tensile fatigue experimental device |
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| CN (1) | CN204346834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885811A (en) * | 2017-02-28 | 2017-06-23 | 海南瑞泽新型建材股份有限公司 | A kind of characterizing method of fiber reinforcement polymer bar and Bond Performance Between Concrete |
-
2015
- 2015-01-22 CN CN201520043262.6U patent/CN204346834U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885811A (en) * | 2017-02-28 | 2017-06-23 | 海南瑞泽新型建材股份有限公司 | A kind of characterizing method of fiber reinforcement polymer bar and Bond Performance Between Concrete |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20170122 |