CN203132917U - Stress relaxation testing device - Google Patents
Stress relaxation testing device Download PDFInfo
- Publication number
- CN203132917U CN203132917U CN2012207430740U CN201220743074U CN203132917U CN 203132917 U CN203132917 U CN 203132917U CN 2012207430740 U CN2012207430740 U CN 2012207430740U CN 201220743074 U CN201220743074 U CN 201220743074U CN 203132917 U CN203132917 U CN 203132917U
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- stress relaxation
- riser
- vertical plate
- circular hole
- bearing ring
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a stress relaxation testing device. The stress relaxation testing device comprises a testing device body, wherein a left vertical plate and a right vertical plate are arranged at two ends of the stress relaxation testing device, round holes are formed in the middle of the left vertical plate and the right vertical plate, the left vertical plate at the upper part of the round hole is provided with a V-shaped hole communicated with the round hole, a jack supporting seat is arranged on the right vertical plate at the lower part of the round hole, a rod to be tested is arranged on the testing device body after penetrating through the round hole of the left vertical plate, the testing device body and the round hole of the right vertical plate, a transition sleeve and a left fastening nut are sequentially sheathed on the rod to be tested at the left side of the left vertical plate from right to left, a pressure sensor is arranged on the transition sleeve, a positioning sleeve, an inner nut, a stress bearing ring, a jack and an outer nut are sequentially arranged on a rod to be tested at the right side of the right vertical plate from left to right, the inner nut is sheathed on the rod to be tested in the stress bearing ring, one end of the jack is contacted with the stress bearing ring, the other end of the jack is contacted with the outer nut, and the lower part of the jack is arranged on the jack supporting seat.
Description
Technical field
The utility model relates to a kind of test unit, relates in particular to a kind of stress relaxation test device, is applied to the test of prestressed anchor stress relaxation ability.
Background technology
Stress relaxation refers to material under certain temperature and constraint loaded state, and strain, distortion or displacement remain unchanged, and the phenomenon that stress prolongation in time reduces gradually.
" material and structural stress relaxation test method " (GB/T 10120-1996) stipulated contents such as the preparation of metal material stress relaxation sample, test routine and test figure data, the stress relaxation ability test of material can only be used for, and the test of actual product can not be used for." deformed bar for prestressed concrete " (GB/T 20065-2006) proposed the stress relaxation ability requirement of prestress deformed bar, requirement is carried out stress relaxation test according to the regulation of GB/T 10120-1996, and GB/T 10120-1996 appendix A has been stipulated test routine and the data processing method of prestressing steel tensile stress relaxation.The stress relaxation test method of the employing of testing agency mostly adopts by regulating test power to keep the method for sample initial strain or distortion to carry out stress relaxation test at present.This kind method is not suitable for the stress relaxation ability monitoring of prestressed anchor product, and because anchor pole is the slender rod type part, the rapid transport of anchor pole, installation and removal are difficult problems.In the patent that has inquired, steel product stress relaxation testing machine (ZL00234136.0) adopts leading screw to realize that test power loads, and exists the product lot quantity that is not suitable for poor for applicability to detect, and operates defectives such as inconvenient labour intensity is big.
Summary of the invention
The utility model provides a kind of stress relaxation test device at the technical barrier in the stress relaxation test, realizes the stress relaxation ability monitoring of anchor pole product, and can realize anchor pole rapid transport, installation and removal, improves test efficiency.
For achieving the above object, the utility model is by the following technical solutions:
A kind of stress relaxation test device, comprise the test unit body, be provided with left riser and right riser at the two ends of stress relaxation test device, centre at left riser and right riser is provided with circular hole, the left riser on circular hole top is provided with the V-shape hole that is communicated with circular hole, the right riser of circular hole bottom is provided with the lifting jack supporting seat, treat that measuring staff passes left riser circular hole, the test unit body, right riser circular hole is arranged on the test unit body, treating on the left of the riser of a left side is arranged with spacer shell and left clamp nut successively by the right side and a left side on the measuring staff, spacer shell is provided with pressure transducer, right riser right side treat be disposed with locating sleeve by a left side and the right side on the measuring staff, inner nut, force bearing ring, lifting jack and outer nut, inner nut is set in treating on the measuring staff in the force bearing ring, one end of lifting jack contacts with force bearing ring, the other end contacts with outer nut, and the bottom of lifting jack is arranged on the lifting jack supporting seat.
Above-mentioned stress relaxation test device, the test unit body is made of two pipes, and two pipes are symmetrical arranged centered by the measuring staff treating, and two pipes connect by channel-section steel.
Above-mentioned stress relaxation test device, the upper surface of channel-section steel all is lower than the central axis of pipe, treats that measuring staff is arranged on the upper surface of channel-section steel.
Above-mentioned anchor stress relaxation test device, described force bearing ring sidewall is provided with breach, the convenient inner nut of adjusting of this breach.
Adopt technique scheme, the utility model has following advantage: the utility model not only can carry out the stress relaxation ability test of material, also can realize the stress relaxation ability test of elongated anchor pole product under actual condition; Delicate structure can realize anchor pole rapid transport, installation and removal, improves test efficiency.
Description of drawings
The 1st, the utility model structural representation.
The 2nd, the utility model test unit body construction synoptic diagram.
Embodiment
A kind of stress relaxation test device as depicted in figs. 1 and 2, comprise test unit body 1, be provided with left riser 9 and right riser 13 at the two ends of stress relaxation test device 1, be provided with circular hole 15 in the centre of left riser and right riser, the left riser on circular hole top is provided with the V-shape hole 16 that is communicated with circular hole, the right riser of circular hole bottom is provided with lifting jack supporting seat 14, treat that measuring staff 8 passes left riser circular hole, the test unit body, right riser circular hole is arranged on the test unit body, treating on the left of the riser of a left side is arranged with spacer shell 2 and left clamp nut 19 successively by the right side and a left side on the measuring staff, spacer shell is provided with pressure transducer 3, right riser right side treat be disposed with locating sleeve 4 by a left side and the right side on the measuring staff, inner nut 7, force bearing ring 5, lifting jack 6 and outer nut 17, inner nut is set in treating on the measuring staff in the force bearing ring, described force bearing ring sidewall is provided with breach 18, the convenient inner nut of adjusting.One end of lifting jack 6 contacts with force bearing ring, and the other end contacts with outer nut 17, and the bottom of lifting jack 6 is arranged on the lifting jack supporting seat.Test unit body 1 is made of two pipes 11, two pipes are symmetrical arranged centered by the measuring staff treating, two pipes connect by channel-section steel 12, the upper surface of channel-section steel 12 all is lower than the central axis of pipe, treat that measuring staff is arranged on the upper surface of channel-section steel, the quantity of pipe and channel-section steel can be according to the length customization for the treatment of measuring staff.
The course of work of the present utility model is as follows: the stress relaxation test step is as follows: anchor pole is put into test unit body 1 along V-shaped part, penetrate pressure transducer 3, locating sleeve 4 respectively at the anchor pole left end, screw in nut 7 then, penetrate locating sleeve 4, force bearing ring 5, inner nut 7, lifting jack 6, locating sleeve 4, outer nut 17 respectively successively at anchor pole 8 right-hand members; Apply the load of tensioning of regulation then with 6 pairs of anchor poles of lifting jack, with inner nut 7 lockings in the force bearing ring 5, lifting jack 6 unloads, and unclamps the outer nut 17 of anchor pole low order end, anchor pole keeps distortion constant by nut and the test unit body 1 at two ends, the load of opening entry pressure transducer 3; Test finishes, and applies load of tensioning with 6 pairs of anchor poles 8 of lifting jack again, the nut in can becoming flexible force bearing ring 5, and lifting jack unloads again, unloads lower nut and anchor pole 8.
Claims (4)
1. stress relaxation test device, it is characterized in that: comprise test unit body (1), be provided with left riser (9) and right riser (13) at the two ends of test unit body (1), be provided with circular hole (15) in the centre of left riser and right riser, the left riser on circular hole top is provided with the V-shape hole (16) that is communicated with circular hole, the right riser of circular hole bottom is provided with lifting jack supporting seat (14), treat that measuring staff (8) passes left riser circular hole, the test unit body, right riser circular hole is arranged on the test unit body, treating on the left of the riser of a left side is arranged with spacer shell (2) and left clamp nut (19) successively by the right side and a left side on the measuring staff, spacer shell is provided with pressure transducer (3), right riser right side treat be disposed with locating sleeve (4) by a left side and the right side on the measuring staff, inner nut (7), force bearing ring (5), lifting jack (6) and outer nut (17), inner nut is set in treating on the measuring staff in the force bearing ring, one end of lifting jack (6) contacts with force bearing ring, the other end contacts with outer nut (17), and the bottom of lifting jack (6) is arranged on the lifting jack supporting seat.
2. stress relaxation test device according to claim 1 is characterized in that: test unit body (1) is made of two pipes (11), and two pipes are symmetrical arranged centered by the measuring staff treating, two pipes connect by channel-section steel (12).
3. stress relaxation test device according to claim 2, it is characterized in that: the upper surface of channel-section steel (12) all is lower than the central axis of pipe, treats that measuring staff is arranged on the upper surface of channel-section steel.
4. stress relaxation test device according to claim 3, it is characterized in that: described force bearing ring sidewall is provided with breach (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207430740U CN203132917U (en) | 2012-12-31 | 2012-12-31 | Stress relaxation testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207430740U CN203132917U (en) | 2012-12-31 | 2012-12-31 | Stress relaxation testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203132917U true CN203132917U (en) | 2013-08-14 |
Family
ID=48940889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207430740U Expired - Lifetime CN203132917U (en) | 2012-12-31 | 2012-12-31 | Stress relaxation testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203132917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295527A (en) * | 2021-05-24 | 2021-08-24 | 燕山大学 | Device for measuring stress relaxation of fiber reinforced composite bar and measuring method thereof |
-
2012
- 2012-12-31 CN CN2012207430740U patent/CN203132917U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295527A (en) * | 2021-05-24 | 2021-08-24 | 燕山大学 | Device for measuring stress relaxation of fiber reinforced composite bar and measuring method thereof |
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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: 20170828 Address after: 450001 No. 311 science Avenue, hi tech Zone, Henan, Zhengzhou Patentee after: HAIWEI ZHENGZHOU HIGH TECHNOLOGY Co.,Ltd. Address before: Beijing Guangzhou road 450015 Henan city of Zhengzhou province No. 126 Patentee before: 713TH Research Institute OF CSIC |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |