CN112064692A - Pile foundation stress testing device - Google Patents
Pile foundation stress testing device Download PDFInfo
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- CN112064692A CN112064692A CN202011072056.XA CN202011072056A CN112064692A CN 112064692 A CN112064692 A CN 112064692A CN 202011072056 A CN202011072056 A CN 202011072056A CN 112064692 A CN112064692 A CN 112064692A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- General Engineering & Computer Science (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the field of building material detection, and particularly relates to a pile foundation stress testing device, wherein a supporting column is connected in a supporting cover at the top of a base in a sliding manner, the top end of the supporting column extends to the upper part of the supporting cover and is fixedly provided with a transverse plate, clamping components are fixedly arranged at the bottom of the transverse plate and the top of the base, a rack is connected on an output shaft of a driving motor at one side of the top of the base in a threaded manner, a gear is fixedly sleeved on a rotating shaft in a rotating connection manner at the top of the base, a mounting disc is fixedly arranged at the top end of the rotating shaft, a hook rod is fixedly arranged in a fixing cover at one side of the transverse plate in a sliding manner, one end of the hook rod extends to the outer side of the fixing cover, and a pressure sensor is fixedly arranged on the inner wall of the bottom of, has good convenience.
Description
Technical Field
The invention belongs to the technical field of building material detection, and relates to a pile foundation stress testing device.
Background
Pile foundation underpinning is a mode of foundation treatment and reinforcement, is generally used for the transformation of underground foundations of buildings, and mainly solves the problems of foundation reinforcement of existing buildings, underground engineering needs to be built under the existing building foundations, treatment needs to be carried out when new building engineering influences the safety of the existing buildings, and the like, so that the stress test after pile foundation underpinning is particularly important.
Disclosure of Invention
In view of the above, the invention provides a pile foundation stress testing device, which aims to solve the problems that a steel bar stress meter is often adopted to perform stress testing on a pile body during stress testing, the steel bar stress meter can be installed in place only by means of multiple tools due to the fact that the steel bar stress meter is completely installed manually, a large amount of time is occupied in the installation process of the steel bar stress meter, and the working efficiency is low.
In order to achieve the purpose, the invention provides a pile foundation stress testing device, which comprises a base, wherein a supporting cover is fixedly arranged at the top of the base, a supporting column is connected in the supporting cover in a sliding manner, the top end of the supporting column extends to the upper part of the supporting cover and is fixedly provided with a transverse plate, clamping components are fixedly arranged at the bottom of the transverse plate and the top of the base, a driving motor is fixedly arranged at one side of the top of the base, a rack is connected on an output shaft of the driving motor in a threaded manner, a rotating shaft is rotatably connected at the top of the base, a gear is fixedly sleeved on the rotating shaft and is meshed with the rack, a mounting disc is fixedly arranged at the top end of the rotating shaft, a fixing cover is fixedly arranged at one side of the transverse plate, a hook rod is connected in the fixing cover in a sliding manner, one end of the hook rod, the other end of the hook rod contacts with the pressure sensor, one end of the hook rod is rotatably connected with one side of the top of the mounting disc, and the two connecting frames are rotatably connected with the same linkage rod.
The beneficial effect of this basic scheme lies in: the invention can realize automatic clamping of the steel bar, and simultaneously can accurately measure the maximum stress value which can be borne by the steel bar by continuously applying pressure to the steel bar, so that the technical scheme has good convenience and higher accuracy when in use.
Further, a screw rod is fixedly installed on an output shaft of the driving motor, a threaded plate is connected to the screw rod in a threaded mode, the threaded plate is connected with the top of the base in a sliding mode, and one side of the threaded plate is fixedly connected with one side of the rack; has the advantages that: utilize the screw thread principle can drive the rack and remove to can carry out spacingly to the rack.
Further, fixed mounting has reset spring on the bottom inner wall of support cover, and reset spring's top and the bottom fixed connection of support column, beneficial effect: can conveniently drive the support column to reset upwards.
Further, clamping component includes two installation covers of fixed mounting respectively in diaphragm bottom and base top, sliding connection has the card cover on the installation cover, and all sliding connection has the carriage release lever on the both sides inner wall of card cover, and the equal fixed mounting in one end that two carriage release levers are close to each other has splint, the equal symmetrical fixed mounting in top of the bottom of diaphragm and base has two dead levers, and the one end that two carriage release levers kept away from each other extends to the both sides of card cover respectively and is connected with two dead lever transmissions respectively, beneficial effect: can realize sliding and limiting the two clamping plates.
Further, top one side fixed mounting of carriage release lever has the down tube that is located the card cover outside, and the down tube is the slope setting, the slip cap is equipped with the sliding sleeve on the down tube, and the one end and the sliding sleeve sliding connection of dead lever, beneficial effect: the splint can conveniently move transversely while moving longitudinally.
Further, sliding connection has the installation pole in the installation cover, and the one end of installation pole respectively with two down tube sliding connection, the other end of installation pole extends to in the card cover and fixed mounting has baffle, beneficial effect: the baffle plate is contacted with the steel bar to drive the inclined rod to move transversely.
Further, the one end fixed mounting of installation pole has the connecting pipe, and symmetrical sliding connection has two connecting rods in the connecting pipe, and the one end that two connecting rods kept away from each other extends respectively to the both sides of installation cover and respectively with the top fixed connection of two down tube, and the both sides inner wall sliding connection of cover, beneficial effect are installed respectively to two connecting rods: the transverse sliding limiting of the inclined rod can be realized.
Further, one side fixed mounting of connecting pipe has the mounting bracket, and the symmetry cover is equipped with two compression spring on the mounting bracket, and two compression spring's one end all with mounting bracket fixed connection, and fixed mounting has the set-square on one side inner wall of installation cover, the set-square is connected with two compression spring transmissions respectively, beneficial effect: the baffle can be elastically supported.
Further, the symmetrical slip cover is equipped with two shift rings on the mounting bracket, and one side fixed connection that two compression spring one end that are close to each other respectively kept away from each other with two shift rings, the set-square is connected beneficial effect with two shift ring transmissions respectively: it is convenient to apply pressure to the compression spring.
Further, one side of shift ring is rotated and is connected with the gyro wheel, and two gyro wheels respectively with the both sides inclined plane rolling contact of set-square, beneficial effect: when the set square is in transmission connection with the two moving rings respectively, friction force can be reduced.
The invention has the beneficial effects that:
1. the pile foundation stress testing device disclosed by the invention can be used for respectively inserting the steel bars to be detected into the two clamping covers, then the driving motor can be started to drive the screw rod to rotate, the threaded rod can drive the threaded plate to transversely move when rotating, the rotating shaft can be driven to rotate through the transmission of the rack and the gear, the mounting disc can be driven to rotate when the rotating shaft rotates, the lower hook rod can be pulled to downwards move at the moment, the transverse plate can be pushed to downwards move when the hook rod downwards moves, and the steel bars can be extruded by utilizing the two baffles at the moment;
when the baffle extrudees the reinforcing bar, can make two installation poles remove in two installation covers respectively, when the installation pole removes, can drive the connecting pipe and remove, at this moment through two connecting rods, two down tubes and two movable rod drive the card cover and remove, and when the down tube removed, at this moment under the effect of sliding sleeve, can drive the down tube and carry out lateral shifting, can drive two splint through two movable rods and be close to each other, press from both sides the reinforcing bar tightly, when the diaphragm removed downwards, can press from both sides tight back to the reinforcing bar, continue to pressurize the reinforcing bar, the record that pressure sensor can be accurate this moment is to the pressure value of reinforcing bar, the phenomenon of bending appears until the reinforcing bar, can be accurate measure the maximum stress value that the reinforcing bar can bear.
2. The pile foundation stress testing device disclosed by the invention can automatically clamp the reinforcing steel bars, and can accurately measure the maximum stress value which can be borne by the reinforcing steel bars by continuously applying pressure to the reinforcing steel bars, so that the technical scheme has good convenience and higher accuracy when in use.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
FIG. 1 is a front view of a pile foundation stress testing device according to the present invention;
FIG. 2 is a front view of a connection structure of an installation cover and a clamping cover in the pile foundation stress testing device of the present invention;
FIG. 3 is a schematic view of the structure of part A of FIG. 2 according to the present invention;
FIG. 4 is a structural side view of a pile foundation stress testing device according to the present invention;
fig. 5 is a front view of a connection structure of a support cover and a support column in the pile foundation stress testing device.
The drawings are numbered as follows: the device comprises a base 1, a support cover 2, a support column 3, a transverse plate 4, a mounting cover 5, a clamping cover 6, a driving motor 7, a screw rod 8, a mounting rod 9, a connecting pipe 10, a connecting rod 11, a diagonal rod 12, a movable rod 13, a clamping plate 14, a baffle plate 15, a mounting rack 16, a fixing rod 17, a sliding sleeve 18, a movable ring 19, a triangular plate 20, a roller 21, a compression spring 22, a threaded plate 23, a rack 24, a rotating shaft 25, a gear 26, a mounting disc 27, a connecting frame 28, a linkage rod 29, a hook rod 30, a fixing cover 31, a pressure sensor 32 and a reset spring 33.
Detailed Description
The following is further detailed by way of specific embodiments:
as shown in fig. 1-5, a pile foundation stress testing device includes a base 1, a supporting cover 2 is fixedly installed on the top of the base 1, a supporting column 3 is slidably connected in the supporting cover 2, the top end of the supporting column 3 extends to the upper side of the supporting cover 2 and is fixedly installed with a transverse plate 4, clamping components are fixedly installed on the bottom of the transverse plate 4 and the top of the base 1, a driving motor 7 is fixedly installed on one side of the top of the base 1, a rack 24 is connected on an output shaft of the driving motor 7 through a thread, a rotating shaft 25 is rotatably connected on the top of the base 1, a gear 26 is fixedly installed on the rotating shaft 25, the rack 24 is meshed with the gear 26, a mounting plate 27 is fixedly installed on the top end of the rotating shaft 25, a fixing cover 31 is fixedly installed on one side of the transverse plate 4, a hook rod 30 is slidably connected in the fixing cover 31, one end of the hook rod 30, the other end of the hook rod 30 is in contact with the pressure sensor 32, one end of the hook rod 30 and one side of the top of the mounting disc 27 are rotatably connected with connecting frames 28, the two connecting frames 28 are rotatably connected with the same linkage rod 29, a screw rod 8 is fixedly installed on an output shaft of the driving motor 7, a threaded plate 23 is in threaded connection with the screw rod 8, the threaded plate 23 is in sliding connection with the top of the base 1, and one side of the threaded plate 23 is fixedly connected with one side of the rack 24; utilize the screw thread principle can drive rack 24 and remove to can carry on spacingly to rack 24, fixed mounting has reset spring 33 on the bottom inner wall of support cover 2, and reset spring 33's top and support column 3's bottom fixed connection, beneficial effect: can conveniently drive the support column 3 to reset upwards.
In this embodiment, clamping assembly includes two installation covers 5 at diaphragm 4 bottom and base 1 top respectively fixed mounting, sliding connection has card cover 6 on installation cover 5, and equal sliding connection has carriage release lever 13 on the both sides inner wall of card cover 6, the equal fixed mounting in one end that two carriage release levers 13 are close to each other has splint 14, the equal symmetrical fixed mounting in bottom of diaphragm 4 and base 1's top has two dead levers 17, and the one end that two carriage release levers 13 kept away from each other extends to the both sides of card cover 6 respectively and is connected with two dead lever 17 transmissions respectively, beneficial effect: can realize sliding spacingly to two splint 14, top one side fixed mounting of carriage release lever 13 has the down tube 12 that is located the card cover 6 outside, and down tube 12 is the slope setting, and sliding sleeve is equipped with sliding sleeve 18 on the down tube 12, and the one end and the sliding sleeve 18 sliding connection of dead lever 17, can conveniently carry out lateral shifting when splint 14 carries out longitudinal movement.
The installation cover 5 is internally and slidably connected with an installation rod 9, one end of the installation rod 9 is respectively and slidably connected with two inclined rods 12, the other end of the installation rod 9 extends into the clamping cover 6 and is fixedly provided with a baffle 15, the inclined rods 12 are driven to transversely move by the contact of the baffle 15 and a steel bar, one end of the installation rod 9 is fixedly provided with a connecting pipe 10, the connecting pipe 10 is internally and symmetrically and slidably connected with two connecting rods 11, the mutually far ends of the two connecting rods 11 respectively extend to two sides of the installation cover 5 and are respectively and fixedly connected with the top ends of the two inclined rods 12, the two connecting rods 11 are respectively and slidably connected with the inner walls of two sides of the installation cover 5, so that the inclined rods 12 can be limited in transverse sliding, one side of the connecting pipe 10 is fixedly provided with an installation frame 16, two compression springs 22 are symmetrically sleeved on the installation frame 16, and fixed mounting has set-square 20 on one side inner wall of installing cover 5, and set-square 20 is connected with two compression spring 22 transmissions respectively, can realize carrying out elastic support to baffle 15, and the symmetry slip cover is equipped with two shift rings 19 on the mounting bracket 16, and the one end that two compression spring 22 are close to each other is connected with one side fixed connection that two shift rings 19 kept away from each other respectively, and set-square 20 is connected beneficial effect with two shift rings 19 transmissions respectively: can conveniently exert pressure to compression spring 22, one side of shift ring 19 is rotated and is connected with gyro wheel 21, and two gyro wheels 21 respectively with the both sides inclined plane rolling contact of set-square 20, when set-square 20 carries out the transmission with two shift rings 22 respectively and is connected, can reduce frictional force.
This pile foundation stress test device's application method, this technical scheme is when using, can insert two card covers 6 respectively with the reinforcing bar that waits to detect, later can start driving motor 7 and can drive screw rod 8 and rotate, when threaded rod 8 rotates, can drive the threading board 23 and carry out lateral shifting, the transmission through rack 24 and gear 26 this moment, can drive pivot 25 and rotate, when pivot 25 rotates, can drive mounting disc 27 and rotate, just so can stimulate down hook bar 30 and remove downwards this moment, when hook bar 30 removes downwards, can promote diaphragm 4 and remove downwards, just can utilize two baffles 15 to extrude the reinforcing bar this moment.
When the baffle 15 extrudes the steel bar, the two installation rods 9 can respectively move in the two installation covers 5, when the installation rods 9 move, the connecting pipe 10 can be driven to move, at the moment, the clamping covers 6 are driven to move through the two connecting rods 11, the two inclined rods 12 and the two moving rods 13, and when the inclined rods 11 move, under the action of the sliding sleeve 18, the inclined rods 12 can be driven to transversely move, namely, the two moving rods 13 can drive the two clamping plates 14 to mutually approach to clamp the steel bar, when the transverse plate 4 moves downwards, the steel bar can be continuously pressurized after being clamped, at the moment, the pressure sensor 32 can accurately record the pressure value of the steel bar until the steel bar is bent, namely, the maximum stress value which can be borne by the steel bar can be accurately measured, therefore, when the technical scheme is used, the method has good convenience and higher accuracy.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.
Claims (10)
1. The utility model provides a pile foundation stress test device, includes base (1), its characterized in that, the top fixed mounting of base (1) has support cover (2), and supports cover (2) sliding connection and have support column (3), the top of support column (3) extends to the top of supporting cover (2) and fixed mounting has diaphragm (4), the equal fixed mounting in top of diaphragm (4) bottom and base (1) has clamping component, top one side fixed mounting of base (1) has driving motor (7), threaded connection has rack (24) on the output shaft of driving motor (7), and the top of base (1) rotates and is connected with pivot (25), the fixed cover is equipped with gear (26) on pivot (25), rack (24) mesh with gear (26), the top fixed mounting of pivot (25) has mounting disc (27), one side fixed mounting of diaphragm (4) has fixed cover (31), sliding connection has hooked pole (30) in fixed cover (31), and the one end of hooked pole (30) extends to the outside of fixed cover (31), fixed mounting has pressure sensor (32) on the bottom inner wall of fixed cover (31), the other end and pressure sensor (32) of hooked pole (30) contact, the one end of hooked pole (30) all rotates with top one side of mounting disc (27) and is connected with link (28), and rotates on two link (28) and be connected with same gangbar (29).
2. The pile foundation stress testing device according to claim 1, wherein a screw rod (8) is fixedly installed on an output shaft of the driving motor (7), a thread plate (23) is connected to the screw rod (8) in a threaded manner, the thread plate (23) is connected with the top of the base (1) in a sliding manner, and one side of the thread plate (23) is fixedly connected with one side of the rack (24).
3. The pile foundation stress testing device according to claim 1, wherein a return spring (33) is fixedly installed on the inner wall of the bottom of the supporting cover (2), and the top end of the return spring (33) is fixedly connected with the bottom end of the supporting column (3).
4. The pile foundation stress testing device of claim 1, wherein the clamping assembly comprises two mounting covers (5) fixedly mounted at the bottom of the transverse plate (4) and the top of the base (1) respectively, a clamping cover (6) is slidably connected onto the mounting covers (5), moving rods (13) are slidably connected onto inner walls of two sides of the clamping cover (6), clamping plates (14) are fixedly mounted at one ends of the two moving rods (13) close to each other, two fixing rods (17) are symmetrically and fixedly mounted at the bottom of the transverse plate (4) and the top of the base (1), and one ends of the two moving rods (13) far away from each other extend to two sides of the clamping cover (6) respectively and are in transmission connection with the two fixing rods (17) respectively.
5. The pile foundation stress testing device according to claim 4, wherein an inclined rod (12) located outside the clamping cover (6) is fixedly installed on one side of the top of the moving rod (13), the inclined rod (12) is arranged in an inclined manner, a sliding sleeve (18) is slidably sleeved on the inclined rod (12), and one end of the fixing rod (17) is slidably connected with the sliding sleeve (18).
6. A pile foundation stress testing device according to claim 5, characterized in that a mounting rod (9) is slidably connected in the mounting cover (5), one end of the mounting rod (9) is slidably connected with the two inclined rods (12), and the other end of the mounting rod (9) extends into the clamping cover (6) and is fixedly provided with a baffle plate (15).
7. The pile foundation stress testing device according to claim 6, wherein a connecting pipe (10) is fixedly installed at one end of the installation rod (9), two connecting rods (11) are symmetrically and slidably connected in the connecting pipe (10), ends, far away from each other, of the two connecting rods (11) respectively extend to two sides of the installation cover (5) and are respectively and fixedly connected with top ends of the two inclined rods (12), and the two connecting rods (11) are respectively and slidably connected with inner walls of two sides of the installation cover (5).
8. The pile foundation stress testing device according to claim 7, wherein a mounting frame (16) is fixedly mounted on one side of the connecting pipe (10), two compression springs (22) are symmetrically sleeved on the mounting frame (16), one ends of the two compression springs (22) are fixedly connected with the mounting frame (16), a triangular plate (20) is fixedly mounted on the inner wall of one side of the mounting cover (5), and the triangular plate (20) is in transmission connection with the two compression springs (22) respectively.
9. A pile foundation stress testing device according to claim 8, characterized in that the mounting frame (16) is symmetrically and slidably sleeved with two moving rings (19), and one ends of the two compression springs (22) close to each other are fixedly connected with one sides of the two moving rings (19) far away from each other, and the triangular plates (20) are in transmission connection with the two moving rings (19).
10. Pile foundation stress testing device according to claim 9, characterized in that the moving ring (19) is rotatably connected with rollers (21) on one side, and the two rollers (21) are in rolling contact with the two inclined surfaces of the triangular plate (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011072056.XA CN112064692A (en) | 2020-10-09 | 2020-10-09 | Pile foundation stress testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011072056.XA CN112064692A (en) | 2020-10-09 | 2020-10-09 | Pile foundation stress testing device |
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| Publication Number | Publication Date |
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| CN112064692A true CN112064692A (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011072056.XA Pending CN112064692A (en) | 2020-10-09 | 2020-10-09 | Pile foundation stress testing device |
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| CN (1) | CN112064692A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100011660A (en) * | 2008-07-25 | 2010-02-03 | 현대제철 주식회사 | Press apparatus for testing steel |
| CN108252337A (en) * | 2018-02-09 | 2018-07-06 | 重庆三峡学院 | A kind of pile foundation drags the multi-functional stress test device changed |
| CN207953634U (en) * | 2018-01-15 | 2018-10-12 | 靖江鑫润再生资源有限公司 | A kind of fixing device of waste metal detection |
| CN210464891U (en) * | 2019-08-27 | 2020-05-05 | 珠海市赛得机器有限公司 | Test fixture |
| CN210954012U (en) * | 2019-07-23 | 2020-07-07 | 天津赛达鑫源检验检测有限公司 | Clamp applied to metal detection equipment |
| CN211061329U (en) * | 2019-10-29 | 2020-07-21 | 山东诺扬工程质量检测有限公司 | Constant-stress anti-bending and anti-compression integrated machine |
| CN211118527U (en) * | 2019-12-05 | 2020-07-28 | 苏州翰泽精密机械有限公司 | High-strength measuring tool structure |
-
2020
- 2020-10-09 CN CN202011072056.XA patent/CN112064692A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100011660A (en) * | 2008-07-25 | 2010-02-03 | 현대제철 주식회사 | Press apparatus for testing steel |
| CN207953634U (en) * | 2018-01-15 | 2018-10-12 | 靖江鑫润再生资源有限公司 | A kind of fixing device of waste metal detection |
| CN108252337A (en) * | 2018-02-09 | 2018-07-06 | 重庆三峡学院 | A kind of pile foundation drags the multi-functional stress test device changed |
| CN210954012U (en) * | 2019-07-23 | 2020-07-07 | 天津赛达鑫源检验检测有限公司 | Clamp applied to metal detection equipment |
| CN210464891U (en) * | 2019-08-27 | 2020-05-05 | 珠海市赛得机器有限公司 | Test fixture |
| CN211061329U (en) * | 2019-10-29 | 2020-07-21 | 山东诺扬工程质量检测有限公司 | Constant-stress anti-bending and anti-compression integrated machine |
| CN211118527U (en) * | 2019-12-05 | 2020-07-28 | 苏州翰泽精密机械有限公司 | High-strength measuring tool structure |
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Application publication date: 20201211 |
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| RJ01 | Rejection of invention patent application after publication |