CN203688358U - Novel post-anchored steel bar drawing detection device - Google Patents
Novel post-anchored steel bar drawing detection device Download PDFInfo
- Publication number
- CN203688358U CN203688358U CN201320875735.XU CN201320875735U CN203688358U CN 203688358 U CN203688358 U CN 203688358U CN 201320875735 U CN201320875735 U CN 201320875735U CN 203688358 U CN203688358 U CN 203688358U
- Authority
- CN
- China
- Prior art keywords
- reinforcing bar
- steel bars
- pad
- rear anchor
- clamping block
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract description 14
- 239000010959 steel Substances 0.000 title abstract description 14
- 238000001514 detection method Methods 0.000 title abstract description 6
- 238000010621 bar drawing Methods 0.000 title abstract 2
- 238000006073 displacement reaction Methods 0.000 claims abstract description 26
- 230000003014 reinforcing effect Effects 0.000 claims description 41
- 230000005489 elastic deformation Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a novel post-anchored steel bar drawing detection device. The device comprises a bracket, a dragging unit and displacement sensors, wherein the dragging unit is arranged on the bracket and is capable of drawing the steel bars upwards; the displacement sensors are used for measuring displacements of the drawn steel bars; a clamp used for tightly clamping the steel bars is arranged close to the concrete surface, and comprises a clamping block; through holes for storing the steel bars are formed in the clamping block; fastening bolts which stretch into the through holes penetrate through the side wall of the clamping block; the displacement sensors comprise universal gauge brackets and dial indicators; the universal gauge brackets are led out of two sides of the clamping block; the dial indicators are arranged at the end parts of the universal gauge brackets. Through the device, the through holes for storing the steel bars are formed in the clamping block of the clamp; when the device is used, the clamp and the steel bars are fixedly connected by tightly screwing the fastening bolts on the side wall, thereby achieving the aim of mounting the displacement sensors on the steel bars with different diameters. In addition, the clamp is arranged close to the concrete surface, so that the universal gauge brackets and the dial indicators are capable of directly reading slippage of the post-anchored steel bars with respect to the concrete, thereby alleviating the influence of elastic deformation of the exposed steel bars.
Description
Technical field
The utility model, for rear anchor bar detection field, particularly relates to a kind of novel rear anchor bar pulling check-up device.
Background technology
In concrete post anchoring engineering, for determining resistance to plucking and the shear behavior of rear anchor piece under ultimate limit states and serviceability limit state, guarantee the construction quality of the reinforcement of concrete rear anchor piece and the safe handling of related building, guarantee the construction quality of the reinforcement of concrete rear anchor piece and the safe handling of related building, must carry out the on-the-spot sampling Detection of concrete post anchoring part resistance to plucking and shear behavior.
The primary structure of the existing concrete post anchoring part resistance to plucking testing equipment for reinforcing bar as shown in Figure 1.Equipment is mainly made up of drawing support 71, drawing lifting jack 72, drawing fixture 73 and the drawing displacement transducer 74 of being drawn by drawing fixture 73.Equipment detection method and principle are that displacement transducer is fixed on and is examined on reinforcing bar now, adopt bracket supports to provide counter-force at concrete surface, while using lifting jack to apply pulling capacity, and reinforcing bar tension, displacement transducer detects distortion and the displacement of reinforcing bar.Detect rear anchor piece extraction-resistant behavior from the reading of lifting jack and displacement meter.The major defect that existing equipment exists has:
1. installation position displacement sensor on the reinforcing bar of different-diameter, need to use different fixtures.
2. the position of the fixture of installation position displacement sensor is higher, detect that shift value comprises rebar clips to the elastic deformation of concrete surface reinforcing bar length and the slippage of reinforcing bar, code requirement testing result need deduct the deflection of reinforcing bar for this reason, because the deflection of reinforcing bar need to be by indirectly calculating, the convenience and the accuracy that detect are affected.
3. be fixed support for lifting jack provides the support of counter-force, in the time of detection means surface irregularity, cannot guarantee that rack surface is perpendicular to tested reinforcing bar, thereby what make that lifting jack applies to reinforcing bar not axial force, affects testing result.
Utility model content
For addressing the above problem, the utility model provides a kind of installation position displacement sensor on different-diameter reinforcing bar, novel rear anchor bar pulling check-up device of simultaneously avoiding the shift value detecting affected by exposed steel bar self elastic deformation of adapting to.
The utility model solves the technical scheme that its technical matters adopts: a kind of novel rear anchor bar pulling check-up device, comprise support, be located on support and upwards drawing reinforcing bar traction unit and measure reinforcing bar tension after the displacement transducer of displacement, be close to concrete surface and be provided with the fixture that clamps reinforcing bar, fixture comprises fixture block, fixture block is provided with the through hole that holds reinforcing bar, sidewall through fixture block is provided with the fastening bolt probeing in through hole, and displacement transducer comprises the universal instrument support of being drawn by fixture block both sides and is located at the dial gauge of universal instrument support end.
Be further used as the improvement of technical solutions of the utility model, support comprises back up pad and four bolts that are threaded with back up pad and prop up back up pad, and back up pad is provided with the vertical core passing for reinforcing bar.
Be further used as the improvement of technical solutions of the utility model, traction unit comprise be located at back up pad top and the fastening block being fixedly connected with reinforcing bar and be located at back up pad and fastening block between lifting jack.
Be further used as the improvement of technical solutions of the utility model, traction unit also comprises the tensimeter that shows jack pressure value.
Be further used as the improvement of technical solutions of the utility model, fastening bolt comprises just to the first fastening bolt and the second fastening bolt that arrange.
The beneficial effects of the utility model: in this novel rear anchor bar pulling check-up device, the through hole that holds reinforcing bar is set in the fixture block of fixture, with time can realize being fixedly connected with of fixture and reinforcing bar by screwing the fastening bolt of sidewall, and realize according to this object of installation position displacement sensor on different-diameter reinforcing bar.In addition, the fixture in the utility model is close to concrete surface setting, makes universal instrument support and dial gauge can directly read rear anchor bar with respect to concrete slippage, thereby reduces the impact of exposed steel bar self elastic deformation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the structural representation of concrete post anchoring part resistance to plucking testing equipment in prior art;
Fig. 2 is the utility model embodiment primary structure schematic diagram;
Fig. 3 is clamp structure schematic diagram in the utility model embodiment;
Fig. 4 is supporting plate structure schematic diagram in the utility model embodiment.
Embodiment
With reference to Fig. 1～Fig. 4, the utility model provides a kind of novel rear anchor bar pulling check-up device, comprise support 1, be located on support 1 and upwards drawing reinforcing bar 2 traction unit 3 and measure reinforcing bar 2 tensions after the displacement transducer 4 of displacement, be close to concrete 5 surfaces and be provided with the fixture 6 that clamps reinforcing bar 2, fixture 6 comprises fixture block 61, fixture block 61 is provided with the through hole 62 that holds reinforcing bar 2, sidewall through fixture block 61 is provided with the fastening bolt 63 probeing in through hole 62, fastening bolt 63 comprises just to the first fastening bolt and the second fastening bolt that arrange, displacement transducer 4 comprises the universal instrument support 41 of being drawn by fixture block 61 both sides and the dial gauge 42 that is located at universal instrument support 41 ends.
In this novel rear anchor bar pulling check-up device, the through hole 62 of reinforcing bar 2 is held in the interior setting of fixture block 61 of fixture 6, with time can realize being fixedly connected with of fixture 6 and reinforcing bar 2 by screwing the fastening bolt 63 of fixture block 61 sidewalls, and realize according to this object of installation position displacement sensor 4 on different-diameter reinforcing bar 2.In addition, the fixture 6 in the utility model is close to concrete 5 surfaces and is arranged, and makes universal instrument support 41 and dial gauge 42 can directly read the slippage of rear anchor bar 2 with respect to concrete 5, thereby reduces the impact of exposed steel bar self elastic deformation.
As the utility model preferred embodiment, support 1 comprises back up pad 11 and four bolts 12 that are threaded with back up pad 11 and prop up back up pad 11, and back up pad 11 is provided with the vertical core 13 passing for reinforcing bar 2.Support 1, by four jiaos of degrees of tightness perpendicular to the bolt 12 of back up pad 11, can regulate the height of 1 four jiaos, support to adapt to different concrete 5 surface conditions.
As the utility model preferred embodiment, traction unit 3 comprise the fastening block 31 that is located at back up pad 11 tops and be fixedly connected with reinforcing bar 2 and be located at back up pad 11 and fastening block 31 between lifting jack 32, traction unit 3 also comprises the tensimeter 33 that shows lifting jack 32 force value.
Principle of the present utility model is: examined the through hole 62 of reinforcing bar 2 through fixture block 61, and with the second fastening bolt, fixture block 61 is close to concrete 5 surfaces by the first fastening bolt and is fixedly connected with, then support 1 is placed on to the top of being examined reinforcing bar 2, make the upper end of reinforcing bar 2 pass vertical core 13, the height that adjusting pole is 1 four jiaos, fixed traction unit 3, then adopt support 1 to be bearing in concrete 5 surfaces counter-force is provided, while using lifting jack 32 to apply pulling capacity, reinforcing bar 2 tensions, displacement transducer 4 detects distortion and the displacement of reinforcing bar 2.Detect rear anchor piece extraction-resistant behavior from the reading of tensimeter 33 and dial gauge 42.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and the modification that these are equal to or replacement are all included in the application's claim limited range.
Claims (5)
1. novel rear anchor bar pulling check-up device, it is characterized in that: comprise support, be located on described support and upwards drawing reinforcing bar traction unit and measure reinforcing bar tension after the displacement transducer of displacement, be close to concrete surface and be provided with the fixture that clamps reinforcing bar, described fixture comprises fixture block, described fixture block is provided with the through hole that holds reinforcing bar, sidewall through fixture block is provided with the fastening bolt probeing in described through hole, and described displacement transducer comprises the universal instrument support of being drawn by described fixture block both sides and is located at the dial gauge of described universal instrument support end.
2. novel rear anchor bar pulling check-up device according to claim 1, it is characterized in that: described support comprises back up pad and four bolts that are threaded with described back up pad and prop up described back up pad, described back up pad is provided with the vertical core passing for reinforcing bar.
3. novel rear anchor bar pulling check-up device according to claim 2, is characterized in that: described traction unit comprises and is located at back up pad top and the fastening block being fixedly connected with reinforcing bar and is located at the lifting jack between described back up pad and fastening block.
4. novel rear anchor bar pulling check-up device according to claim 3, is characterized in that: described traction unit also comprises the tensimeter that shows jack pressure value.
5. according to the novel rear anchor bar pulling check-up device described in claim 1～4 any one, it is characterized in that: described fastening bolt comprises just to the first fastening bolt and the second fastening bolt that arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320875735.XU CN203688358U (en) | 2013-12-26 | 2013-12-26 | Novel post-anchored steel bar drawing detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320875735.XU CN203688358U (en) | 2013-12-26 | 2013-12-26 | Novel post-anchored steel bar drawing detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203688358U true CN203688358U (en) | 2014-07-02 |
Family
ID=51010245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320875735.XU Expired - Lifetime CN203688358U (en) | 2013-12-26 | 2013-12-26 | Novel post-anchored steel bar drawing detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203688358U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792622A (en) * | 2015-05-18 | 2015-07-22 | 郑卫华 | Bolt and cable pull-out strength tester |
| CN105548001A (en) * | 2016-01-23 | 2016-05-04 | 北京航空航天大学 | Pipe seam type anchor rod on-site drawing force measurement device |
| CN105784465A (en) * | 2016-03-30 | 2016-07-20 | 广西众诚工程质量检测有限公司 | Square supporting device for pull-out test |
| CN106092753A (en) * | 2016-08-08 | 2016-11-09 | 郑卫华 | flat anchor rod drawing instrument |
| CN106643415A (en) * | 2017-02-22 | 2017-05-10 | 中国水利水电第五工程局有限公司 | Anchor pole anti-pull-force displacement test device |
| CN107478514A (en) * | 2017-08-09 | 2017-12-15 | 宿州云宏建设安装有限公司 | A kind of Portable reinforcing steel bar bond stress fast detector |
| CN109540651A (en) * | 2018-12-13 | 2019-03-29 | 华侨大学 | A kind of all kinds of nonplanar assembled self-balancing original positions of adaptation pull-out test device |
| JP2019191022A (en) * | 2018-04-26 | 2019-10-31 | 国立研究開発法人建築研究所 | Tensile tester for anchor and method of the same |
| CN110823717A (en) * | 2019-11-01 | 2020-02-21 | 广州大学 | Semi-flexible pavement shear strength testing device and testing method |
| CN111024496A (en) * | 2019-11-28 | 2020-04-17 | 中国建筑第八工程局有限公司 | Force transmission device for anti-pulling test and detection method thereof |
| CN113172104A (en) * | 2021-05-07 | 2021-07-27 | 江苏艾可森钢绳有限公司 | Steel wire drawing experimental equipment with recording function |
-
2013
- 2013-12-26 CN CN201320875735.XU patent/CN203688358U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792622A (en) * | 2015-05-18 | 2015-07-22 | 郑卫华 | Bolt and cable pull-out strength tester |
| CN105548001B (en) * | 2016-01-23 | 2018-11-27 | 北京航空航天大学 | A kind of pipe-seam type anchor rod scene drawing force measuring device |
| CN105548001A (en) * | 2016-01-23 | 2016-05-04 | 北京航空航天大学 | Pipe seam type anchor rod on-site drawing force measurement device |
| CN105784465A (en) * | 2016-03-30 | 2016-07-20 | 广西众诚工程质量检测有限公司 | Square supporting device for pull-out test |
| CN106092753A (en) * | 2016-08-08 | 2016-11-09 | 郑卫华 | flat anchor rod drawing instrument |
| CN106643415A (en) * | 2017-02-22 | 2017-05-10 | 中国水利水电第五工程局有限公司 | Anchor pole anti-pull-force displacement test device |
| CN107478514A (en) * | 2017-08-09 | 2017-12-15 | 宿州云宏建设安装有限公司 | A kind of Portable reinforcing steel bar bond stress fast detector |
| CN107478514B (en) * | 2017-08-09 | 2019-11-26 | 上海市市政工程管理咨询有限公司 | A kind of Portable reinforcing steel bar bond stress fast detector |
| JP2019191022A (en) * | 2018-04-26 | 2019-10-31 | 国立研究開発法人建築研究所 | Tensile tester for anchor and method of the same |
| JP7032759B2 (en) | 2018-04-26 | 2022-03-09 | 国立研究開発法人建築研究所 | Tensile tester for anchors and its method |
| CN109540651A (en) * | 2018-12-13 | 2019-03-29 | 华侨大学 | A kind of all kinds of nonplanar assembled self-balancing original positions of adaptation pull-out test device |
| CN109540651B (en) * | 2018-12-13 | 2024-02-23 | 华侨大学 | Assembled self-balancing in-situ drawing test device suitable for various nonplanar surfaces |
| CN110823717A (en) * | 2019-11-01 | 2020-02-21 | 广州大学 | Semi-flexible pavement shear strength testing device and testing method |
| CN111024496A (en) * | 2019-11-28 | 2020-04-17 | 中国建筑第八工程局有限公司 | Force transmission device for anti-pulling test and detection method thereof |
| CN113172104A (en) * | 2021-05-07 | 2021-07-27 | 江苏艾可森钢绳有限公司 | Steel wire drawing experimental equipment with recording function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203688358U (en) | Novel post-anchored steel bar drawing detection device | |
| CN107091770B (en) | Metal roofing system resistance to plucking bearing capacity detection device | |
| CN109060555B (en) | Concrete creep testing device and analysis method based on four-point bending loading | |
| CN105651684A (en) | Method for detecting friction loss and anchoring loss of post-tensioned pre-stressing concrete structure | |
| CN103645009A (en) | Torque wrench calibrator | |
| CN204881498U (en) | Vertical measuring device that scratches of bridge | |
| CN203849100U (en) | Ball hinge fixing and supporting structure for creeping instrument | |
| CN102680573B (en) | Timber vibration property tester based on uniform force knocking method | |
| CN103091093B (en) | Suspension clamp device and method for blade static test | |
| CN110296933B (en) | Bonding slip measuring device for steel tube concrete column push-out test | |
| CN202599322U (en) | Concrete creep deformation measuring device | |
| CN210427320U (en) | Bonding slippage measuring device for push-out test of concrete filled steel tubular column | |
| CN103528494A (en) | Device for measuring creep deformation of eddy current | |
| CN103278382A (en) | Bolt tensile strength detection clamp | |
| CN204882248U (en) | Back anchor assembly resistance to plucking performance test device | |
| CN109060518A (en) | A kind of tensile test fixture of long test specimen | |
| CN210775027U (en) | Large-bending-moment annular concrete pole tower mechanical experiment table | |
| CN208269817U (en) | The convergence monitoring device of support construction | |
| CN203811325U (en) | Tension sensor testing device | |
| CN202693395U (en) | Elasticity experimenting and detecting device | |
| CN207730576U (en) | Build concrete crush test machine | |
| CN216743522U (en) | Measuring device for building engineering | |
| CN201191255Y (en) | Bending measuring apparatus for concrete tenacity experiment | |
| CN205449380U (en) | Pulling force pressure test machine | |
| CN203587278U (en) | Torque wrench calibrating apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210125 Address after: 510000 No. 5 Lane three North Lane, Yuexiu District Temple Road, Guangzhou, Guangdong Patentee after: Guangzhou Guangjian Construction Engineering Testing Center Co.,Ltd. Address before: 510000 Room 201, 3 Fuqian Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU CONSTRUCTION QUALITY & SAFETY TESTING CENTER |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |