CN105527181A - A buckling strength testing device for stirrups - Google Patents
A buckling strength testing device for stirrups Download PDFInfo
- Publication number
- CN105527181A CN105527181A CN201511022891.1A CN201511022891A CN105527181A CN 105527181 A CN105527181 A CN 105527181A CN 201511022891 A CN201511022891 A CN 201511022891A CN 105527181 A CN105527181 A CN 105527181A
- Authority
- CN
- China
- Prior art keywords
- stirrup
- upper bracket
- lower carriage
- clamping
- measured
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
Abstract
The invention provides a buckling strength testing device for stirrups. The testing device comprises an upper bracket, an upper bracket supporting device, two buckling devices, at least two buckling adjusting parts, a lower bracket, a lower bracket supporting device and two clamping devices. The upper bracket supporting device is disposed at the middle part of the upper bracket. The top of the upper bracket supporting device is fixedly connected to an upper connector or an upper connecting port of a micro-electronic universal tester. One side of the upper bracket supporting device is provided with a gap. The buckling devices are disposed at the top of the upper bracket and can move along the extending direction of the upper bracket. The buckling adjusting parts are stuck on projected parts of the buckling devices. The lower bracket supporting device is disposed at the middle part of the lower bracket. The bottom of the lower bracket supporting device is fixedly connected to a lower connector or a lower connecting port of the micro-electronic universal tester. The clamping devices are disposed at the top of the lower bracket, can move along the extending direction of the lower bracket, and are used for clamping free ends of a stirrup to be tested. Through the testing device, properties of stirrups with different widths, different buckling angles and different radiuses of curvature can be tested, and influencing rules for the buckling strength of the stirrups can be analyzed.
Description
Technical field
The present invention relates to civil engineering work detection technique field, particularly relate to a kind of stirrup buckling strength proving installation.
Background technology
In the face of the complex environment engineering of corrosion environment, especially offshore engineering, the application demand of domestic fibre reinforced composites (FRP, FiberReinforcedPolymer/Plastic) stirrup strengthens gradually.Because FRP stirrup has high strength, completely without advantages such as magnetic, therefore will substitute reinforcing bar at some special dimension FRP stirrup, and jointly play a role with concrete.
But FRP stirrup (can referred to as fiber stirrup, lower with) is different from steel wire binding bar, and belong to anisotropic material, bending place is the part of whole fiber stirrup most fragile.After fiber stirrup is placed in xoncrete structure, its bending part not only bears axial pulling force but also bear the power of concrete to the transverse direction that it produces, and makes it be in complicated applied force state; In addition, bending machining makes the fiber fold distortion inside FRP stirrup, and these all can cause FRP stirrup sweep tensile strength to reduce.And in FRP laterally reinforced concrete component, the intensity of FRP stirrup directly will have influence on the direct life-span of component, so the intensity of FRP stirrup bending place directly has influence on the engineer applied of FRP stirrup.
But domestic not about the proving installation of FRP stirrup buckling strength, method and relevant criterion thereof at present, the test of fiber stirrup belongs to blank out.
Summary of the invention
In view of this, the invention provides a kind of stirrup buckling strength proving installation, thus different in width, different bending angle, different curvature radius fiber stirrup bending place performance can be detected.
Technical scheme of the present invention is specifically achieved in that
A kind of stirrup buckling strength proving installation, this device comprises: upper bracket, upper bracket bracing or strutting arrangement, two bending devices, at least two bendings adjustment part, lower carriage, lower carriage bracing or strutting arrangement and two clamping devices;
The two ends of described upper bracket are respectively arranged with the groove passed through for stirrup to be measured;
Described upper bracket bracing or strutting arrangement is arranged on the middle part of described upper bracket, the bottom of described upper bracket bracing or strutting arrangement is fixedly connected with the bottom of described upper bracket, and the top of described upper bracket bracing or strutting arrangement is fixedly connected with the top connection of microelectronics universal testing machine or upper interface; The side of described upper bracket bracing or strutting arrangement is provided with the gap penetrated for stirrup to be measured;
Described bending device is arranged on the top of described upper bracket, and can move along the bearing of trend of described upper bracket; The outer end of described bending device is provided with teat;
Described bending adjustment part is connected on the teat of described bending device;
Described lower carriage bracing or strutting arrangement is arranged on the middle part of described lower carriage, the top of described lower carriage bracing or strutting arrangement is fixedly connected with the bottom of described lower carriage, and the bottom of described lower carriage bracing or strutting arrangement is fixedly connected with the lower sub of microelectronics universal testing machine or lower interface;
Described clamping device is arranged on the top of described lower carriage, and can move along the bearing of trend of described lower carriage; Described clamping device is for clamping the free end of stirrup to be measured.
Preferably, described bending adjustment part at least comprises three following class adjustment parts:
U-lag is provided with in the middle of the bottom of first kind adjustment part; The thickness of described U-lag both sides two wall is identical from top to bottom;
U-lag is provided with in the middle of the bottom of Equations of The Second Kind adjustment part; The thickness of described U-lag both sides two wall increases from top to bottom gradually;
U-lag is provided with in the middle of the bottom of the 3rd class adjustment part; The thickness of the wall of described U-lag side increases from top to bottom gradually, and the thickness of the wall of opposite side is identical from top to bottom.
Preferably, described clamping device comprises: clamping body and jaw;
The bottom of described clamping body is connected with the top of described lower carriage, and can move along the bearing of trend of described lower carriage; The bottom of described clamping body is provided with universal shaft, for adjusting the angle of described clamping body according to the bending angle of stirrup to be measured;
Described clamping body is provided with jaw, and described jaw is for clamping the free end of stirrup to be measured;
Preferably, described jaw comprises: first kind jaw and Equations of The Second Kind jaw;
Described first kind jaw, for clamping the stirrup to be measured of circle or the opposite sex;
Described Equations of The Second Kind jaw, for clamping flat stirrup to be measured.
Preferably, described stirrup buckling strength proving installation also comprises further: holding clamp;
Described holding clamp is used for the top clamping body of described clamping device being fixed on described lower carriage.
Preferably, described bending device is connected by the top of set bolt with described upper bracket.
Preferably, the one or both sides of described upper bracket and lower carriage are provided with scale.
As seen from the above technical solution, in stirrup buckling strength proving installation of the present invention, owing to being provided with two bending devices, this bending device can move freely along the bearing of trend of described upper bracket, therefore, as long as the distance between two of stirrup to be measured kinks is not more than the range between two bending devices, the test of stirrup buckling strength can be carried out to stirrup to be measured, thus the test of stirrup buckling strength can be carried out to the stirrup of plurality of specifications, size; And described stirrup to be measured can be FRP stirrup, also can be other the stirrup that can bend, such as, reinforcing bar etc.Applicability is very extensive, and operation is also very convenient.In addition, the structure of the stirrup buckling strength proving installation in the present invention is simple, reasonable in design, is convenient to dismounting and assembling, also fast and easy when testing.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of the stirrup buckling strength proving installation in the embodiment of the present invention.
Fig. 2 is the schematic perspective view of upper bracket in the embodiment of the present invention and upper bracket bracing or strutting arrangement.
Fig. 3 is the front schematic view of upper bracket in the embodiment of the present invention and upper bracket bracing or strutting arrangement.
Fig. 4 is the vertical view of upper bracket in the embodiment of the present invention and upper bracket bracing or strutting arrangement.
Fig. 5 is the side view of upper bracket in the embodiment of the present invention and upper bracket bracing or strutting arrangement.
Fig. 6 is the schematic perspective view of lower carriage in the embodiment of the present invention and lower carriage bracing or strutting arrangement.
Fig. 7 is the front schematic view of lower carriage in the embodiment of the present invention and lower carriage bracing or strutting arrangement.
Fig. 8 is the vertical view of lower carriage in the embodiment of the present invention and lower carriage bracing or strutting arrangement.
Fig. 9 is the side view of lower carriage in the embodiment of the present invention and lower carriage bracing or strutting arrangement.
Figure 10 is the structural representation of the first kind adjustment part in the embodiment of the present invention.
Figure 11 is the structural representation of the Equations of The Second Kind adjustment part in the embodiment of the present invention.
Figure 12 is the structural representation of the 3rd class adjustment part in the embodiment of the present invention.
Figure 13 is the use schematic diagram of the Equations of The Second Kind adjustment part in the embodiment of the present invention.
Figure 14 is the use schematic diagram of the 3rd class adjustment part in the embodiment of the present invention.
Figure 15 is the perspective view one of the clamping device in the embodiment of the present invention.
Figure 16 is the perspective view two of the clamping device in the embodiment of the present invention.
Figure 17 is the perspective view three of the clamping device in the embodiment of the present invention.
Figure 18 is the front schematic view of the clamping device in the embodiment of the present invention.
Figure 19 is the vertical view of the clamping device in the embodiment of the present invention.
Figure 20 is the A-A cut-open view of the clamping device in the embodiment of the present invention.
Figure 21 is the structural representation of the holding clamp in the embodiment of the present invention.
Figure 22 is the schematic perspective view of the first kind jaw in the embodiment of the present invention.
Figure 23 is four views of the first kind jaw in the embodiment of the present invention.
Figure 24 is the schematic perspective view of the Equations of The Second Kind jaw in the embodiment of the present invention.
Figure 25 is four views of the Equations of The Second Kind jaw in the embodiment of the present invention.
Figure 26 is the schematic perspective view that the set bolt in the embodiment of the present invention is connected with bending device.
Figure 27 is the side view that the set bolt in the embodiment of the present invention is connected with bending device.
Embodiment
For making technical scheme of the present invention and advantage clearly understand, below in conjunction with drawings and the specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the general structure schematic diagram of the stirrup buckling strength proving installation in the embodiment of the present invention.Fig. 2 ~ Fig. 5 is the connection diagram of upper bracket in the embodiment of the present invention and upper bracket bracing or strutting arrangement.Fig. 6 ~ Fig. 9 is the connection diagram of lower carriage in the embodiment of the present invention and lower carriage bracing or strutting arrangement.As shown in Fig. 1 ~ Fig. 9, the stirrup buckling strength proving installation in the embodiment of the present invention comprises: the bending of upper bracket 11, upper bracket bracing or strutting arrangement 12, two bending devices 13, at least two adjustment part 14, lower carriage 15, lower carriage bracing or strutting arrangement 16 and two clamping devices 17;
The two ends of described upper bracket 11 are respectively arranged with the groove 110 passed through for stirrup 10 to be measured;
Described upper bracket bracing or strutting arrangement 12 is arranged on the middle part of described upper bracket 11, the bottom of described upper bracket bracing or strutting arrangement 12 is fixedly connected with the bottom of described upper bracket 11, the top of described upper bracket bracing or strutting arrangement 12 is fixedly connected with (such as with the top connection of microelectronics universal testing machine or upper interface (not shown), the top of upper bracket bracing or strutting arrangement is connected with the top connection of microelectronics universal testing machine or inserts in the upper interface of microelectronics universal testing machine, then insert latch, and screw set nut locking); The side of described upper bracket bracing or strutting arrangement 12 is provided with the gap 121 penetrated for stirrup 10 to be measured;
Described bending device 13 is arranged on the top of described upper bracket 11, and can move along the bearing of trend of described upper bracket 11; The outer end of described bending device 13 is provided with teat 131;
Described bending adjustment part 14 is connected on the teat 131 of described bending device 13;
Described lower carriage bracing or strutting arrangement 16 is arranged on the middle part of described lower carriage 15, the top of described lower carriage bracing or strutting arrangement 16 is fixedly connected with the bottom of described lower carriage 15, the bottom of described lower carriage bracing or strutting arrangement 16 is fixedly connected with (such as with the lower sub of microelectronics universal testing machine or lower interface (not shown), the top of lower carriage bracing or strutting arrangement is connected with the lower sub of microelectronics universal testing machine or inserts in the lower interface of microelectronics universal testing machine, then insert latch, and screw set nut locking);
Described clamping device 17 is arranged on the top of described lower carriage 15, and can move along the bearing of trend of described lower carriage 15; Described clamping device 17 is for clamping the free end of stirrup 10 to be measured.
When using above-mentioned stirrup buckling strength proving installation, can first according to stirrup to be measured (such as, need the FRP stirrup carrying out buckling strength test) the position of bending angle or two bending angles between width, two bending devices in above-mentioned stirrup buckling strength proving installation are moved to suitable position on upper bracket, and suitable bending adjustment part is connected on the teat of bending device; Stirrup to be measured can be placed on the top of described two bending devices subsequently by the gap of described upper bracket bracing or strutting arrangement, the bending angle of stirrup to be measured is abutted with bending device, and abuts with the clamping device in above-mentioned stirrup buckling strength proving installation after making two of stirrup to be measured free ends be each passed through the groove at described upper bracket two ends; Then, two of a stirrup to be measured free end can be fixedly connected with described two clamping devices respectively, and two bending devices and two clamping devices are all fixed on current location, thus stirrup to be measured is fixed on stirrup buckling strength proving installation.
Because the top of upper bracket bracing or strutting arrangement is fixedly connected with the top connection of microelectronics universal testing machine or upper interface, and the lower sub of the bottom of lower carriage bracing or strutting arrangement and microelectronics universal testing machine or lower interface are fixedly connected with, therefore, now only need open microelectronics universal testing machine, microelectronics universal testing machine applies acting force, continuous loading, the distance of the top connection of microelectronics universal testing machine or upper interface and lower sub or lower interface is increased gradually, distance between described upper bracket and lower carriage also increases thereupon, the test of stirrup buckling strength can be carried out, until the kink of stirrup to be measured occurs damaged, record load reading simultaneously and carry out analysis and obtain a result.
In the inventive solutions, because above-mentioned two bending devices can move freely along the bearing of trend of described upper bracket, therefore, as long as the distance between two of stirrup to be measured kinks is not more than the range between two bending devices, the test of stirrup buckling strength can be carried out to stirrup to be measured, thus the test of stirrup buckling strength can be carried out to the stirrup of plurality of specifications, size; And described stirrup to be measured can be FRP stirrup, also can be other the stirrup that can bend, such as, reinforcing bar etc.Applicability is very extensive, and operation is also very convenient.In addition, the structure of the stirrup buckling strength proving installation in the present invention is simple, reasonable in design, is convenient to dismounting and assembling, also fast and easy when testing.
Further, due to described bending adjustment part be connected to described bending device teat on, therefore, in order to adapt to various radius-of-curvature and/or the bending angle of the kink of stirrup to be measured, in preferred embodiment of the present invention, described bending adjustment part also can have various shape.
Such as, Figure 10 ~ Figure 12 is the schematic shapes of first, second and third class adjustment part in the embodiment of the present invention, and as shown in Figure 10 ~ Figure 12, preferably, in one particular embodiment of the present invention, described bending adjustment part at least can comprise three class adjustment parts:
Wherein, as shown in Figure 10, the bottom of first kind adjustment part is middle is provided with U-lag 141; The thickness of described U-lag 141 both sides two wall is identical from top to bottom; The kink that described first kind adjustment part may be used for stirrup to be measured is the situation at right angle; Meanwhile, change the thickness at the teat top of bending device by superposing multiple first kind adjustment part on the teat of bending device, thus change radius-of-curvature, thus can adapt to the multiple radius-of-curvature of the kink of different stirrup to be measured.
As shown in figure 11, the bottom of Equations of The Second Kind adjustment part is middle is provided with U-lag 141; The thickness of described U-lag 141 both sides two wall increases from top to bottom gradually; The kink that described Equations of The Second Kind adjustment part may be used for stirrup to be measured is the situation of acute angle;
As shown in figure 12, the bottom of the 3rd class adjustment part is middle is provided with U-lag 141; The thickness of the wall of described U-lag 141 side increases from top to bottom gradually, and the thickness of the wall of opposite side is identical from top to bottom; The kink that described 3rd class adjustment part may be used for stirrup to be measured is the situation at obtuse angle; .
After being provided with above-mentioned three class adjustment parts, be namely applicable to multiple radius-of-curvature and/or the bending angle of the kink of stirrup to be measured; Such as, increased the thickness at the teat top of bending device by the mode of the multiple bending adjustment part of superposition clamping, thus adapt to the multiple radius-of-curvature of the kink of different stirrup to be measured; By combinationally using different adjustment parts, thus adapt to the multiple bending angle of the kink of different stirrup to be measured.
Such as, as shown in Figure 1, if the kink of stirrup to be measured is right angle, then first kind adjustment part can directly be used;
Again such as, if the kink of stirrup to be measured is obtuse angle, then can use Equations of The Second Kind adjustment part and/or the 3rd class adjustment part, such as, be used alone an Equations of The Second Kind adjustment part; Or be used alone a 3rd class adjustment part, as shown in figure 13; Or also an Equations of The Second Kind adjustment part can be connected on the teat of described bending device, and then a 3rd class adjustment part is connected to Equations of The Second Kind adjustment part; Or also a 3rd class adjustment part can be connected on the teat of described bending device, and then an Equations of The Second Kind adjustment part is connected to the 3rd class adjustment part; By that analogy, repeat no more.
If the kink of stirrup to be measured is acute angle, then can use Equations of The Second Kind adjustment part or the 3rd class adjustment part, such as, be used alone an Equations of The Second Kind adjustment part, as shown in figure 14, only use a bending device, and Equations of The Second Kind adjustment part is connected on the teat of bending device; Or be used alone a 3rd class adjustment part, with similar shown in figure, also only use a bending device, repeat no more.
Therefore, in the inventive solutions, according to the needs of practical situations, bending adjustment part that is more, more Multiple Shape can be set completely, thus adapting to various radius-of-curvature and/or the bending angle of the kink of stirrup to be measured better, concrete setting does not repeat them here.
In addition, in order to adapt to various radius-of-curvature and/or the bending angle of the kink of stirrup to be measured better, in the preferred embodiment, the diameter of the U-lag of all kinds of adjustment part can also be pre-set according to practical situations, each class adjustment part is made all to have the adjustment part of multiple U-lag diameter, thus can when practical application, by mutual for inhomogeneous adjustment part clamping, to adapt to various angle and/or the shape of the kink of stirrup to be measured.
In addition, Figure 15 ~ Figure 20 is the structural representation of the clamping device in the embodiment of the present invention.Figure 21 is the structural representation of the holding clamp in the embodiment of the present invention.As shown in Figure 15 ~ Figure 21, preferably, in a particular embodiment of the present invention, described clamping device 17 comprises: clamping body 171 and jaw 172;
The bottom of described clamping body 171 is connected with the top of described lower carriage 15, and can move along the bearing of trend of described lower carriage 15; The bottom of described clamping body 171 is provided with universal shaft 173, for adjusting the angle of described clamping body 171 according to the bending angle of stirrup 10 to be measured;
Described clamping body 171 is provided with jaw 172, and described jaw 172 is for clamping the free end of stirrup 10 to be measured;
Preferably, in a particular embodiment of the present invention, described stirrup buckling strength proving installation can further include: holding clamp 18;
Described holding clamp 18 is for being fixed on the top of described lower carriage 15 by the clamping body 171 of described clamping device 17.
In the inventive solutions, because the bottom of above-mentioned clamping body is provided with universal shaft, therefore can, according to the angle of the bending angle adjustment clamping body of stirrup to be measured, the jaw clamped on body can be clamped better to the free end of stirrup to be measured.
In addition, in the inventive solutions, multiple jaw can be used, for adapting to difform stirrup to be measured.
Such as, Figure 22 ~ Figure 25 is respectively the structural representation of first kind jaw in the embodiment of the present invention and Equations of The Second Kind jaw.As shown in Figure 22 ~ Figure 25, preferably, in a particular embodiment of the present invention, described jaw comprises: first kind jaw and Equations of The Second Kind jaw;
Described first kind jaw, for clamping the stirrup to be measured of circle or the opposite sex;
Described Equations of The Second Kind jaw, for clamping flat stirrup to be measured.
At the above-mentioned stirrup buckling strength proving installation of use, can according to the concrete shape of stirrup to be measured, the first kind jaw that choice for use is above-mentioned or the free end of Equations of The Second Kind jaw to stirrup to be measured clamp.
In addition, Figure 26 with Figure 27 is respectively the schematic perspective view and side view that the set bolt in the embodiment of the present invention is connected with bending device.As shown in Figure 26 and Figure 27, preferably, in a particular embodiment of the present invention, described bending device 13 is connected with the top of described upper bracket 11 by set bolt 19.
Preferably, in a particular embodiment of the present invention, the one or both sides of described upper bracket and lower carriage are provided with scale, thus can according to above-mentioned scale mobile bending adjustment part and clamping device on upper bracket and lower carriage.
In sum, in the inventive solutions, a kind of adjustable, device that stirrup buckling strength can be tested fast is proposed.Be used for detecting different in width, different bending angle, different curvature radius fiber stirrup bending place performance and analyzing the affecting laws of stirrup buckling strength.Owing to being provided with two bending devices in above-mentioned stirrup buckling strength proving installation, this bending device can move freely along the bearing of trend of described upper bracket, therefore, as long as the distance between two of stirrup to be measured kinks is not more than the range between two bending devices, the test of stirrup buckling strength can be carried out to stirrup to be measured, thus the test of stirrup buckling strength can be carried out to the stirrup of plurality of specifications, size; And described stirrup to be measured can be FRP stirrup, also can be other the stirrup that can bend, such as, reinforcing bar etc.Applicability is very extensive, and operation is also very convenient.In addition, the structure of the stirrup buckling strength proving installation in the present invention is simple, reasonable in design, meets the Force principle of fiber stirrup in component, but also is convenient to carry out dismantling and assembling, also fast and easy when testing.
In addition, due in the inventive solutions, clamping bending adjustment part on the teat of the bending device in stirrup buckling strength proving installation, and can according to the demand of practical application, the bending adjustment part of design difformity, kind; In addition, being also provided with in clamping device can according to the universal shaft of the angle of the clamping body in the bending angle adjustment clamping device of stirrup to be measured; In addition, different jaws can also be used according to practical situations, thus make above-mentioned stirrup buckling strength proving installation can adapt to various radius-of-curvature and/or the bending angle of the kink of stirrup to be measured, greatly extend the range of application of above-mentioned stirrup buckling strength proving installation, greatly improve the versatility of above-mentioned stirrup buckling strength proving installation, and simple, convenient, quick.
In addition, stirrup buckling strength proving installation in the present invention not only may be used for testing the buckling strength of FRP stirrup, also can test the buckling strength of the bent stirrup (such as, the stirrup that reinforcing bar is made) of other kind, the scope of application is very extensive.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (7)
1. a stirrup buckling strength proving installation, is characterized in that, this device comprises: upper bracket, upper bracket bracing or strutting arrangement, two bending devices, at least two bendings adjustment part, lower carriage, lower carriage bracing or strutting arrangement and two clamping devices;
The two ends of described upper bracket are respectively arranged with the groove passed through for stirrup to be measured;
Described upper bracket bracing or strutting arrangement is arranged on the middle part of described upper bracket, the bottom of described upper bracket bracing or strutting arrangement is fixedly connected with the bottom of described upper bracket, and the top of described upper bracket bracing or strutting arrangement is fixedly connected with the top connection of microelectronics universal testing machine or upper interface; The side of described upper bracket bracing or strutting arrangement is provided with the gap penetrated for stirrup to be measured;
Described bending device is arranged on the top of described upper bracket, and can move along the bearing of trend of described upper bracket; The outer end of described bending device is provided with teat;
Described bending adjustment part is connected on the teat of described bending device;
Described lower carriage bracing or strutting arrangement is arranged on the middle part of described lower carriage, the top of described lower carriage bracing or strutting arrangement is fixedly connected with the bottom of described lower carriage, and the bottom of described lower carriage bracing or strutting arrangement is fixedly connected with the lower sub of microelectronics universal testing machine or lower interface;
Described clamping device is arranged on the top of described lower carriage, and can move along the bearing of trend of described lower carriage; Described clamping device is for clamping the free end of stirrup to be measured.
2. device according to claim 1, is characterized in that: described bending adjustment part at least comprises three following class adjustment parts:
U-lag is provided with in the middle of the bottom of first kind adjustment part; The thickness of described U-lag both sides two wall is identical from top to bottom;
U-lag is provided with in the middle of the bottom of Equations of The Second Kind adjustment part; The thickness of described U-lag both sides two wall increases from top to bottom gradually;
U-lag is provided with in the middle of the bottom of the 3rd class adjustment part; The thickness of the wall of described U-lag side increases from top to bottom gradually, and the thickness of the wall of opposite side is identical from top to bottom.
3. device according to claim 1, is characterized in that: described clamping device comprises: clamping body and jaw;
The bottom of described clamping body is connected with the top of described lower carriage, and can move along the bearing of trend of described lower carriage; The bottom of described clamping body is provided with universal shaft, for adjusting the angle of described clamping body according to the bending angle of stirrup to be measured;
Described clamping body is provided with jaw, and described jaw is for clamping the free end of stirrup to be measured.
4. device according to claim 3, is characterized in that, described jaw comprises: first kind jaw and Equations of The Second Kind jaw;
Described first kind jaw, for clamping the stirrup to be measured of circle or the opposite sex;
Described Equations of The Second Kind jaw, for clamping flat stirrup to be measured.
5. device according to claim 3, is characterized in that, described stirrup buckling strength proving installation also comprises further: holding clamp;
Described holding clamp is used for the top clamping body of described clamping device being fixed on described lower carriage.
6. device according to claim 1, is characterized in that:
Described bending device is connected by the top of set bolt with described upper bracket.
7. device according to claim 1, is characterized in that:
The one or both sides of described upper bracket and lower carriage are provided with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022891.1A CN105527181B (en) | 2015-12-31 | 2015-12-31 | A kind of stirrup buckling strength test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511022891.1A CN105527181B (en) | 2015-12-31 | 2015-12-31 | A kind of stirrup buckling strength test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105527181A true CN105527181A (en) | 2016-04-27 |
| CN105527181B CN105527181B (en) | 2018-03-06 |
Family
ID=55769543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511022891.1A Active CN105527181B (en) | 2015-12-31 | 2015-12-31 | A kind of stirrup buckling strength test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105527181B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763560A (en) * | 2019-10-16 | 2020-02-07 | 徐州市铜山区嘉量计量检测创新中心 | Detection device is used in optical fiber communication cable production |
| CN111289383A (en) * | 2020-04-02 | 2020-06-16 | 新昌县华漫建材有限公司 | Building steel bar quality bearing capacity detection test device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050217388A1 (en) * | 2004-04-02 | 2005-10-06 | Luna Innovations Incorporated | Bond testing system, method, and apparatus |
| CN203337450U (en) * | 2013-06-14 | 2013-12-11 | 陕西钢铁集团有限公司 | Fixture for steel bar detection test |
| CN103674699A (en) * | 2012-08-31 | 2014-03-26 | 昆山市建设工程质量检测中心 | Site detection equipment for mechanical property of steel bars |
| CN204575458U (en) * | 2015-04-04 | 2015-08-19 | 浙江元本检测技术有限公司 | A kind of bar bending test unit |
| CN204740174U (en) * | 2015-07-01 | 2015-11-04 | 中冶建工集团有限公司 | Reinforcing bar resistance to shear test fixture's reinforcing bar fixing device |
| CN205301103U (en) * | 2015-12-31 | 2016-06-08 | 中冶建筑研究总院有限公司 | Stirrup strength test device of buckling |
-
2015
- 2015-12-31 CN CN201511022891.1A patent/CN105527181B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050217388A1 (en) * | 2004-04-02 | 2005-10-06 | Luna Innovations Incorporated | Bond testing system, method, and apparatus |
| CN103674699A (en) * | 2012-08-31 | 2014-03-26 | 昆山市建设工程质量检测中心 | Site detection equipment for mechanical property of steel bars |
| CN203337450U (en) * | 2013-06-14 | 2013-12-11 | 陕西钢铁集团有限公司 | Fixture for steel bar detection test |
| CN204575458U (en) * | 2015-04-04 | 2015-08-19 | 浙江元本检测技术有限公司 | A kind of bar bending test unit |
| CN204740174U (en) * | 2015-07-01 | 2015-11-04 | 中冶建工集团有限公司 | Reinforcing bar resistance to shear test fixture's reinforcing bar fixing device |
| CN205301103U (en) * | 2015-12-31 | 2016-06-08 | 中冶建筑研究总院有限公司 | Stirrup strength test device of buckling |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763560A (en) * | 2019-10-16 | 2020-02-07 | 徐州市铜山区嘉量计量检测创新中心 | Detection device is used in optical fiber communication cable production |
| CN110763560B (en) * | 2019-10-16 | 2022-02-15 | 徐州市铜山区嘉量计量检测创新中心 | Detection device is used in optical fiber communication cable production |
| CN111289383A (en) * | 2020-04-02 | 2020-06-16 | 新昌县华漫建材有限公司 | Building steel bar quality bearing capacity detection test device |
| CN111289383B (en) * | 2020-04-02 | 2021-07-06 | 康保县鸿科建设工程质量检测有限公司 | Building steel bar quality bearing capacity detection test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105527181B (en) | 2018-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202735163U (en) | Fixture for testing bolted connection extrusion strength of composite material | |
| KR100938831B1 (en) | Compact pipe sample | |
| CN103175733B (en) | Direct tensile test jag of incompressible material | |
| CN106706419B (en) | Device for simulating simple supporting boundary conditions in plate test | |
| CN105527181A (en) | A buckling strength testing device for stirrups | |
| CN103673820B (en) | After a kind of, floor frame assembly detects utensil | |
| CN204613021U (en) | A kind of centering assembly for testing machine | |
| CN205301103U (en) | Stirrup strength test device of buckling | |
| CN211697239U (en) | Fixture for detecting shearing force of spot welding of spacer grid guide pipe and spacer grid | |
| CN104567635B (en) | A kind of device of quick detection grip of testing machine axiality | |
| CN104655486A (en) | Tubular test sample constant-deformation stress corrosion testing clamp | |
| CN111766162A (en) | Automobile sheet strain fatigue test device and method | |
| CN104297075A (en) | A metal wire torsion test method for a steel wire rope | |
| CN104515449A (en) | Detection tool of automotive rear-cover hinge assembly | |
| CN208895950U (en) | A kind of bracket for small pipeline hardness and metal lographic examination | |
| CN110220791B (en) | Axial tensile test device for cylindrical concrete member | |
| CN209416819U (en) | A kind of drawing fixture of rectangular tubular workpiece | |
| CN219495932U (en) | Clamp for mechanical test of metal flat plate component | |
| CN207570935U (en) | A kind of corollary apparatus for being used for cross or T connector bend test | |
| CN210741996U (en) | Anchor clamps suitable for nuclear power HDPE electric melting connects full-scale tensile test | |
| CN203629494U (en) | Detection tool of rear floor board frame assembly | |
| CN211954655U (en) | Connecting device for suspension clamp and yoke plate general type mechanical load test | |
| CN109443328B (en) | Prestressed pipeline coordinate positioning ruler and use method thereof | |
| CN215866189U (en) | Fixing device for weld nail bending test | |
| CN204241307U (en) | The measurement and positioning jig of weldering net sample |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |