CN113063662B - Steel pipe concrete creep testing device considering initial stress of steel pipe - Google Patents
Steel pipe concrete creep testing device considering initial stress of steel pipe Download PDFInfo
- Publication number
- CN113063662B CN113063662B CN202110280717.6A CN202110280717A CN113063662B CN 113063662 B CN113063662 B CN 113063662B CN 202110280717 A CN202110280717 A CN 202110280717A CN 113063662 B CN113063662 B CN 113063662B
- Authority
- CN
- China
- Prior art keywords
- plate
- concrete
- steel tube
- steel
- steel pipe
- 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.)
- Active
Links
Images
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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- 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
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a steel tube concrete creep testing device considering initial stress of a steel tube, which comprises a testing device body, wherein the testing device body comprises a concrete base plate, two ends of the top of the concrete base plate are respectively provided with a lower fixing plate, two ends of the top of the two lower fixing plates are respectively provided with a bottom sleeve, the interiors of the four bottom sleeves are respectively provided with the steel tube, the tops of the four steel tubes are respectively provided with a connecting cylinder, the tops of the four connecting cylinders are respectively provided with an upper fixing plate, and two sides of the top of a bearing plate are respectively provided with a left limiting plate and a right limiting plate. According to the steel tube concrete creep testing device considering the initial stress of the steel tube, the fixed tube is arranged outside the steel tube through the bolts, the stress sensor is placed inside the bearing tube, so that the stress value of the bearing steel tube can be monitored, the fixed tube is taken out from the outside of the steel tube after the testing is finished, the damage of the stress sensor is avoided, and the secondary use is convenient.
Description
Technical Field
The invention relates to the technical field of testing devices, in particular to a steel tube concrete creep testing device considering initial stress of a steel tube.
Background
The initial stress, i.e. the original rock stress, the natural stress, is often referred to in geology as "ground stress", and is the internal stress that a rock mass has in natural occurrence. The method comprises dead weight stress, structural stress, expansion stress caused by rock when meeting water, temperature stress caused by temperature change, stress caused by crystallization, deterioration, sedimentation, consolidation and dehydration, dead weight stress fluctuation caused by rock discontinuity and the like. Among these are mainly dead weight stress and structural stress. The initial stress mainly affects the stress redistribution of the surrounding rock of the underground chamber, the deformation and stability of the surrounding rock, the pressure of mountain rock and the stability of a rock slope and a rock matrix, and is essential original data in engineering design, and the initial stress is generally measured by a field measurement method (such as a stress relief method). When the weight is calculated approximately in engineering, dead weight stress is often used instead. The spatially distributed state is called "primary stress field" or "initial stress field".
At present, relevant scholars carry out a great deal of creep test researches on the creep performance of a member which is used for bearing loads simultaneously on a poured concrete filled steel tube structure, the steel tube and the concrete, so that more beneficial conclusions are obtained, and the following problems can occur in the use process of the traditional steel tube concrete creep testing device considering the initial stress state of the steel tube, namely: the steel pipe to be tested for stress test is inconvenient to install. And II: the sensor tested by the device is inconvenient to install and can not be used for a second time. Thirdly,: only the concrete steel pipe which is not poured can be tested. Therefore, the steel pipe concrete creep testing device considering the initial stress of the steel pipe is improved.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a steel pipe concrete creep testing device considering initial stress of a steel pipe.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a steel tube concrete creep testing device considering initial stress of a steel tube, which comprises a testing device body, wherein the testing device body comprises a concrete base plate, lower fixing plates are arranged at two ends of the top of the concrete base plate, bottom sleeves are arranged at two ends of the top of the two lower fixing plates, steel tubes are arranged in the four bottom sleeves, connecting cylinders are arranged at the top ends of the four steel tubes, upper fixing plates are arranged at the top ends of the four connecting cylinders, bearing plates are arranged at the top ends of the two upper fixing plates, left limiting plates and right limiting plates are respectively arranged at two sides of the top of the bearing plates, weight-distributing bodies are arranged at the middle parts of the top ends of the left limiting plates and the right limiting plates, a climbing ladder is arranged at one side of the top of the concrete base plate, a supporting seat is arranged at one side of the middle of the concrete base plate, control panels are arranged at the top ends of the supporting seat, the two lower fixing plates are respectively connected with the top ends of the four steel tubes through a plurality of bolts, the four force sensors are respectively arranged at the four sides of the top of the four steel tubes, the four steel tubes are respectively fixedly connected with the top ends of the four steel tubes through a plurality of the four bolts, the four force sensors are respectively arranged at the four side of the four steel tubes, the four force sensors are fixedly connected with the top ends of the four steel tubes through the four steel tubes respectively, the four force sensors are fixedly connected with the four steel tubes respectively, the four steel tubes are respectively fixedly connected with the top ends, the four steel tubes, the steel tube are respectively, the four steel pipe are respectively, the two upper fixing plates are fixedly connected with the two sides of the bottom end of the bearing plate through a plurality of bolts.
As a preferable technical scheme of the invention, two pouring pipes are arranged at two ends of the bearing plate, and the interiors of the four pouring pipes are communicated with the interiors of the four steel pipes by penetrating through two ends of the bearing plate and two ends of the two upper fixing plates.
As a preferable technical scheme of the invention, the left limiting plate and the right limiting plate pass through two threaded holes of a plurality of threaded holes formed in the bearing plate through two bolts, two threaded holes are fixed on two sides of the top end of the bearing plate, and the distance between the left limiting plate and the right limiting plate can be adjusted through the plurality of threaded holes fixed on the bearing plate.
As a preferable technical scheme of the invention, hanging rings are arranged on two sides of the top of the counterweight body, and the counterweight body is manufactured by solidifying after pouring concrete through a mould.
As a preferable technical scheme of the invention, the middle parts of the two sides of the top end of the concrete floor base plate are fixedly provided with the hydraulic telescopic rods, the two sides of the top ends of the two hydraulic telescopic rods, which are positioned at the bottom of the bearing plate, are respectively provided with the jacking plates, the two sides of the bottom ends of the two jacking plates are respectively fixedly provided with the balance rods, and the bottom ends of the four balance rods are respectively arranged in the four open holes formed in the two sides of the top of the concrete floor base plate.
The beneficial effects of the invention are as follows: the steel tube concrete creep testing device considering initial stress of the steel tube comprises a steel tube body, a steel tube body and a steel tube body, wherein the steel tube body is provided with a steel tube body, the steel tube body is provided with a steel tube cavity, the:
and (3) a step of: through the bottom sleeve that fixed mounting has under the fixed plate, make it insert the inside of bottom sleeve with the steel pipe that needs to carry out initial stress test, its top is connected with last fixed plate through the connecting tube, can install fast, prepares the test, and this installation is more convenient.
And II: the fixing tube is arranged outside the steel tube through the screw, the stress sensor is placed inside the bearing tube, the stress value of the bearing steel tube can be monitored, the fixing tube is taken out from the outside of the steel tube after the test is finished, the damage of the stress sensor is avoided, and the secondary use is convenient.
Thirdly,: after the steel pipe without concrete is tested, the bearing plate is jacked up through the hydraulic telescopic rod, so that the steel pipe is not subjected to the bearing gravity of the counterweight body, concrete is injected into the steel pipe through the pouring pipe, and after the concrete is solidified, the steel pipe concrete can be subjected to creep test, thereby realizing the stress creep test work on the steel pipe without concrete and in two states.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic structural view of a concrete filled steel tube creep test apparatus according to the present invention, taking into consideration initial stress of a steel tube;
FIG. 2 is a schematic view of a part of the concrete filled steel tube creep test device taking initial stress of a steel tube into consideration;
FIG. 3 is a schematic view of the structure of FIG. 1 in partial enlargement-A of a concrete filled steel tube creep testing apparatus taking into account initial stress of a steel tube according to the present invention;
FIG. 4 is a schematic view of a part of the concrete filled steel tube creep test apparatus according to the present invention in consideration of initial stress of the steel tube.
In the figure: 1. a testing device body; 2. a concrete floor base; 3. a lower fixing plate; 4. a bottom sleeve; 5. a steel pipe; 6. a connecting cylinder; 7. an upper fixing plate; 8. a carrying plate; 9. a left limiting plate; 10. a right limiting plate; 11. a counterweight body; 12. a ladder stand; 13. a support base; 14. a control panel; 15. a fixed tube; 16. a carrier tube; 17. a stress sensor; 18. pouring a pipe; 19. hanging rings; 20. a hydraulic telescopic rod; 21. jacking up the plate; 22. balance bar.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Example 1: as shown in fig. 1-2, the steel pipe concrete creep testing device taking initial stress of a steel pipe into consideration comprises a testing device body 1, wherein the testing device body 1 comprises a concrete floor base plate 2, two ends of the top of the concrete floor base plate 2 are respectively provided with a lower fixing plate 3, two ends of the top of the two lower fixing plates 3 are respectively provided with a bottom sleeve 4, the interiors of the four bottom sleeves 4 are respectively provided with a steel pipe 5, the tops of the four steel pipes 5 are respectively provided with a connecting cylinder 6, the tops of the four connecting cylinders 6 are respectively provided with an upper fixing plate 7, the tops of the two upper fixing plates 7 are respectively provided with a bearing plate 8, two sides of the top of the bearing plate 8 are respectively provided with a left limiting plate 9 and a right limiting plate 10, the middle part of the top of the bearing plate 8 is provided with a counterweight 11, one side of the bearing plate 8 is provided with a climbing ladder 12, one side of the middle part of the concrete floor base plate 2 is provided with a supporting seat 13, and the top of the supporting seat 13 is provided with a control panel 14.
The two lower fixing plates 3 are fixedly connected with the two sides of the top of the concrete floor base plate 2 through a plurality of bolts, the four bottom sleeves 4 are fixedly connected with the two sides of the top of the two lower fixing plates 3 through a plurality of small bolts, the bottom ends of the four steel pipes 5 are arranged in the interiors of the four bottom sleeves 4, and the two bottom sleeves 4 which are arranged at the top ends of the two lower fixing plates 3 are used for enabling the steel pipes 5 which need to be subjected to initial stress test to be inserted into the interiors of the bottom sleeves, so that the steel pipes 5 can be conveniently and fixedly installed.
Four connecting cylinders 6 are fixedly connected with the top ends of four steel pipes 5 through a plurality of screws, the four connecting cylinders 6 are respectively arranged at the two ends of two upper fixing plates 7, the two upper fixing plates 7 are fixedly connected with the two sides of the bottom ends of the bearing plates 8 through a plurality of bolts, the four connecting cylinders 6 are fixedly connected with the top ends of four steel pipes 5 through a plurality of screws, the top ends of the four connecting cylinders are connected with the upper fixing plates 7 through the connecting cylinders 6, and the quick mounting and test can be realized, and the mounting process is more convenient and quick.
Two pouring pipes 18 are arranged at two ends of the bearing plate 8, two ends of the four pouring pipes 18 penetrating through the bearing plate 8 and two ends of the two upper fixing plates 7 are communicated with the interiors of the four steel pipes 5, two pouring pipes 18 are arranged at two ends of the bearing plate 8, concrete materials can be poured into the interiors of the four steel pipes 5 through the four pouring pipes 18, and after the concrete materials are solidified, creep test can be conducted on the steel pipe concrete.
The left limiting plate 9 and the right limiting plate 10 are fixed on the two sides of the top end of the bearing plate 8 by two bolts penetrating through two threaded holes of a plurality of threaded holes formed in the bearing plate 8, the distance between the left limiting plate 9 and the right limiting plate 10 can be adjusted by fixing a plurality of threaded holes on the bearing plate 8, and the left limiting plate 9 and the right limiting plate 10 arranged on the top end of the bearing plate 8 are used for limiting and blocking the counterweight body 11.
Hanging rings 19 are arranged on two sides of the top of the counterweight body 11, the counterweight body 11 is manufactured by solidification after concrete is poured through a die, and hanging rings 19 are arranged on two sides of the top of the counterweight body 11, so that outer lifting equipment is convenient for lifting the counterweight body 11.
Example 2: as shown in fig. 3 to 4, the concrete filled steel tube creep test device taking initial stress of the steel tube into consideration according to the present invention comprises fixed pipes 15 respectively sleeved outside four steel tubes 5, and hydraulic telescopic rods 20 respectively provided at the middle parts of both sides of the top end of the concrete floor base 2.
The four fixed pipes 15 are fixedly connected with the bearing pipes 16 on one side, the stress sensors 17 are fixedly installed in the four bearing pipes 16, the four stress sensors 17 are electrically connected with the control panel 14, the stress sensors 17 are fixedly installed in the four bearing pipes 16, the fixed pipes 15 are installed outside the steel pipes 5 through screws, the stress sensors 17 are placed in the bearing pipes 16, the stress values of the steel pipes 5 after bearing gravity can be monitored, the fixed pipes 15 are taken out from the outer parts of the steel pipes 5 after the test is finished, damage to the stress sensors 17 is avoided, and the steel pipes are convenient to use for the second time.
The top of two hydraulic telescoping rods 20 is located the both sides of loading board 8 bottom and all is provided with jack-up board 21, and the both sides of two jack-up board 21 bottom are all fixed and are provided with balancing pole 22, and four trompil's inside that the both sides of concrete floor base 2 top were seted up are all arranged in to the bottom of four balancing poles 22, through two hydraulic telescoping rods 20 that are equipped with, make the piston rod of its two hydraulic telescoping rods 20 jack-up loading board 8 through jack-up board 21, make it convenient to install the steel pipe 5 that does not carry out the test or has carried out the test work, demolish the work.
When the device works, through the two ground sleeves 4 arranged at the top ends of the two lower fixing plates 3, the steel pipe 5 which needs to be subjected to initial stress test can be inserted into the bottom sleeve, so that the device is convenient to fixedly install; the four connecting cylinders 6 are fixedly connected with the top ends of the four steel pipes 5 through a plurality of screws, so that the top ends of the four connecting cylinders are connected with the upper fixing plate 7 through the connecting cylinders 6, the test can be quickly carried out, and the installation process is more convenient and quick; two pouring pipes 18 are arranged at two ends of the bearing plate 8, so that concrete materials can be poured into the four steel pipes 5 through the four pouring pipes 18, and after the concrete materials are solidified, creep test can be carried out on the steel pipe concrete; hanging rings 19 are arranged on two sides of the top of the counterweight body 11, so that external lifting equipment is convenient for lifting the counterweight body 11; the stress sensors 17 are fixedly arranged in the four bearing pipes 16, so that the fixed pipes 15 are arranged outside the steel pipes 5 through screws, the stress sensors 17 are placed in the bearing pipes 16, the stress values of the steel pipes 5 after bearing gravity can be monitored, and the fixed pipes 15 are taken out of the steel pipes 5 after the test is finished, so that the damage of the stress sensors 17 is avoided, and the secondary use is convenient; through the two hydraulic telescopic rods 20, the piston rods of the two hydraulic telescopic rods 20 jack up the bearing plate 8 through the jack-up plate 21, so that the steel pipe 5 which is not tested or has been tested can be conveniently installed and removed.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a steel pipe concrete creep testing arrangement of considering steel pipe initial stress, includes testing arrangement body (1), its characterized in that, testing arrangement body (1) is including a concrete floor base board (2), both ends at concrete floor base board (2) top all are provided with down fixed plate (3), two both ends at fixed plate (3) top all are provided with collet (4) down, four the inside of collet (4) all is provided with steel pipe (5), four the top of steel pipe (5) all is provided with connecting cylinder (6), four the top of connecting cylinder (6) is located the top of two fixed plates (3) down and all is provided with fixed plate (7), two the top of going up fixed plate (7) is provided with loading board (8), the both sides at loading board (8) top are provided with left limiting plate (9) and right limiting plate (10) respectively, the middle part that left limiting plate (9) and right limiting plate (10) are located loading board (8) top is provided with ligand (11), the top of loading board (8) is located the top of concrete base (12) is provided with control platform (13), two fixed plate (3) all pass through the both sides fixed connection at a plurality of bolt and concrete base plate (2) top, four bottom sleeve (4) also pass through a plurality of little bolt and two the both sides fixed connection at fixed plate (3) top down, and the inside of four bottom sleeve (4) is arranged in to the bottom homogeneous phase of four steel pipe (5), four the outer wall of steel pipe (5) has fixed pipe (15) through the equal fixed mounting of a plurality of screw, four the equal fixed connection in one side of fixed pipe (15) is provided with carrier tube (16), four the equal fixed mounting in inside of carrier tube (16) has stress sensor (17), and four stress sensor (17) all with control panel (14) electric connection.
2. The steel tube concrete creep testing device considering initial stress of a steel tube according to claim 1, wherein four connecting cylinders (6) are fixedly connected with the top ends of four steel tubes (5) through a plurality of screws, the four connecting cylinders (6) are respectively arranged at two ends of two upper fixing plates (7) in a phase, and the two upper fixing plates (7) are fixedly connected with two sides of the bottom end of a bearing plate (8) through a plurality of bolts.
3. A concrete filled steel tube creep testing device taking into account initial stress of a steel tube as claimed in claim 1, wherein two casting pipes (18) are arranged at both ends of the bearing plate (8), and the interiors of the four casting pipes (18) are communicated with the interiors of the four steel tubes (5) through both ends of the bearing plate (8) and both ends of the two upper fixing plates (7).
4. The concrete filled steel tube creep testing device considering initial stress of a steel tube according to claim 1, wherein the left limiting plate (9) and the right limiting plate (10) are both fixed on two sides of the top end of the bearing plate (8) through two bolts passing through two of a plurality of threaded holes formed in the bearing plate (8), and the distance between the left limiting plate (9) and the right limiting plate (10) can be adjusted through the plurality of threaded holes formed in the bearing plate (8).
5. The steel pipe concrete creep testing device considering initial stress of a steel pipe according to claim 1, wherein hanging rings (19) are arranged on two sides of the top of the counterweight body (11), and the counterweight body (11) is manufactured by solidifying after pouring concrete through a mould.
6. The steel tube concrete creep testing device considering initial stress of a steel tube according to claim 1, wherein hydraulic telescopic rods (20) are fixedly installed in the middle of two sides of the top end of the concrete base plate (2), jacking plates (21) are arranged on two sides of the top end of each hydraulic telescopic rod (20) located at the bottom of the bearing plate (8), balance rods (22) are fixedly arranged on two sides of the bottom end of each jacking plate (21), and the bottoms of four balance rods (22) are arranged in four open holes formed in two sides of the top of the concrete base plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110280717.6A CN113063662B (en) | 2021-03-16 | 2021-03-16 | Steel pipe concrete creep testing device considering initial stress of steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110280717.6A CN113063662B (en) | 2021-03-16 | 2021-03-16 | Steel pipe concrete creep testing device considering initial stress of steel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113063662A CN113063662A (en) | 2021-07-02 |
| CN113063662B true CN113063662B (en) | 2023-07-14 |
Family
ID=76561107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110280717.6A Active CN113063662B (en) | 2021-03-16 | 2021-03-16 | Steel pipe concrete creep testing device considering initial stress of steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113063662B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686684B (en) * | 2021-10-26 | 2022-02-08 | 南通大自然温室大棚制造有限公司 | Steel pipe stretching detection device with diameter adjustable structure and method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205581106U (en) * | 2016-03-30 | 2016-09-14 | 四川华西绿舍建材有限公司 | A device for testing self -compaction microdilatancy steel pipe concrete expansion rate |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697867A (en) * | 2015-03-11 | 2015-06-10 | 重庆工商职业学院 | Concrete creeping tester |
| CN105890995A (en) * | 2016-02-25 | 2016-08-24 | 大连理工大学 | High-strength concrete pressure-bearing creep test system |
| CN105650603B (en) * | 2016-03-18 | 2019-04-26 | 浙江朗特隆光电有限公司 | Ground is installed by upright bar fixator |
| CN207231907U (en) * | 2017-09-08 | 2018-04-13 | 华北理工大学 | The strain full curve measuring device of concrete in uniaxial tension stress |
| CN107884268B (en) * | 2017-10-11 | 2019-10-11 | 太原理工大学 | Consider the Creep of Concrete-filled Steel Tube test device of steel pipe primary stress |
| CN107870126B (en) * | 2017-10-11 | 2019-11-12 | 太原理工大学 | New concrete compression column and armored concrete are by camber beam creep test device |
| CN210279594U (en) * | 2019-07-12 | 2020-04-10 | 漳州爱莱莉家具有限公司 | Baking finish device is used in steel pipe furniture production |
| CN211992580U (en) * | 2020-02-26 | 2020-11-24 | 温汉权 | Fixing device for building detection |
| CN111721631B (en) * | 2020-05-11 | 2022-04-19 | 莆田学院 | Device and method for testing ultimate bearing capacity of concrete filled steel tube axial compression short column |
| CN112326174A (en) * | 2020-10-14 | 2021-02-05 | 崔文娣 | Building bearing capacity detection device and working method thereof |
-
2021
- 2021-03-16 CN CN202110280717.6A patent/CN113063662B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205581106U (en) * | 2016-03-30 | 2016-09-14 | 四川华西绿舍建材有限公司 | A device for testing self -compaction microdilatancy steel pipe concrete expansion rate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113063662A (en) | 2021-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109505317B (en) | Compression resistance, resistance to plucking and horizontal static load test equipment of high stake | |
| CN109556965B (en) | Shield segment mechanical property simulation test device | |
| CN108571425B (en) | Pile foundation cap foundation of offshore wind turbine generator set and construction method thereof | |
| CN102493471B (en) | Suspending installation construction process method of structural foot margin anchor bolt | |
| CN111044375B (en) | Reaction well loading device and method capable of carrying out large-scale full-scale test on pipe sheet | |
| CN113063662B (en) | Steel pipe concrete creep testing device considering initial stress of steel pipe | |
| CN108910730B (en) | Installation and construction method of large horizontal tower crane | |
| CN104963368A (en) | Large-diameter multiple steel bar anti-floating anchor bearing capacity detecting system and installation method thereof | |
| CN104374650A (en) | Testing device and method for testing static force shear property between tubular pile and grouting soil body | |
| CN101851915A (en) | Force measurement pipe pile | |
| CN115452572B (en) | Test device and method for testing neutral axis position and longitudinal equivalent bending stiffness of shield tunnel | |
| CN209907206U (en) | Auxiliary device for installing dumbbell-shaped arch ribs | |
| CN114059554B (en) | Deep foundation pit inner support system with steel truss and inclined cast support and construction method | |
| CN206095771U (en) | Many axial tension that contain crack defect component press loading device | |
| CN213741148U (en) | Steel cofferdam transfer device | |
| CN208416809U (en) | A kind of offshore wind turbine pile foundation support table basis | |
| CN212363899U (en) | Multifunctional compression-shear testing machine | |
| CN213842892U (en) | Drawing resistance testing machine for connection of polyethylene pressure pipe and pipe fitting | |
| CN209745698U (en) | Reaction frame for fan embedded foundation bearing capacity test | |
| CN208415285U (en) | A kind of steel cushion cap support leveling system of offshore wind turbine foundation | |
| CN207133116U (en) | A kind of failure test device of anti-flood wall column | |
| CN218952232U (en) | Steel construction stand adjusting device | |
| CN111044376A (en) | Vertical loading device and test method for pipe pieces with different sizes in reaction well | |
| CN219604908U (en) | Construction stratum steel pipe column positioning device | |
| CN215977268U (en) | Adjusting equipment for elevation of top surface of cast-in-place pile reinforcement cage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |