CN214309946U - Bearing capacity test equipment of prefabricated plate overhanging rack - Google Patents
Bearing capacity test equipment of prefabricated plate overhanging rack Download PDFInfo
- Publication number
- CN214309946U CN214309946U CN202120452798.9U CN202120452798U CN214309946U CN 214309946 U CN214309946 U CN 214309946U CN 202120452798 U CN202120452798 U CN 202120452798U CN 214309946 U CN214309946 U CN 214309946U
- Authority
- CN
- China
- Prior art keywords
- bearing
- rack
- length direction
- prefabricated
- testing
- 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 - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 238000003825 pressing Methods 0.000 claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000009826 distribution Methods 0.000 claims description 15
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application relates to bearing capacity testing equipment for a prefabricated plate overhanging rack, which comprises two bearing platforms, wherein the two bearing platforms are arranged in parallel, and a detection area is reserved between the two bearing platforms; and a pressing assembly used for applying pressure to the prefabricated plate is arranged in the detection area. The lower pressing assembly can be used for carrying out pressure testing on different positions of the prefabricated plate, and the strength testing device has the effect of effectively testing the strength of the overhanging rack of the prefabricated plate.
Description
Technical Field
The application relates to the technical field of prefabricated part detection equipment, in particular to bearing capacity testing equipment for an overhanging rack of a prefabricated plate.
Background
With the rapid development of Chinese capital construction, the assembly type buildings are gradually popularized. The connection technology between the prefabricated panels and the beam columns belongs to the more critical technology in the prefabricated building.
The Chinese patent with the prior application publication number of CN107740522A discloses a connecting structure of a prefabricated regenerated block concrete slab and a superposed beam, which comprises a left side plate, a right side plate and a superposed beam; the end parts of the left side plate and the right side plate are respectively provided with an outward extending rack which is overlapped on the upper surface of the superposed beam; thin steel plates lapped on the upper surface of the superposed beam are embedded in the edges of the bottom of the left side plate and the right side plate; the left side plate and the right side plate are both provided with an outward extending plate rib which is vertical to the beam axial direction and a plate rib which is parallel to the beam axial direction, and the outward extending plate ribs of the left side plate and the right side plate are mutually lapped; and binding the beam longitudinal bars and the beam stirrups of the superposed beam.
The end parts of the left side plate and the right side plate are provided with the overhanging racks for bearing construction load, so that the problem of complicated construction caused by the fact that a large number of vertical supports are required to be erected in floor slab assembly at present is solved.
In the related art, after the production of a certain type of prefabricated slab is finished, in order to ensure that the strength of the external rack of the subsequent prefabricated slab meets the bearing requirement, the prefabricated slabs need to be subjected to sampling inspection, and the strength of the external rack of the prefabricated slab needs to be detected, so that the safety in the subsequent construction process is ensured. There is a lack in the related art of an apparatus capable of suitably inspecting such a prefabricated panel.
SUMMERY OF THE UTILITY MODEL
In order to provide a device for conveniently and effectively detecting the strength of the prefabricated plate overhanging rack, the application provides a bearing capacity testing device of the prefabricated plate overhanging rack.
The application provides a bearing capacity test equipment of prefabricated plate overhanging rack adopts following technical scheme:
the bearing capacity test equipment for the prefabricated plate overhanging rack comprises two bearing platforms, wherein the two bearing platforms are arranged in parallel, and a detection area is reserved between the two bearing platforms; and a pressing assembly used for applying pressure to the prefabricated plate is arranged in the detection area.
By adopting the technical scheme, when the overhanging rack of the prefabricated slab is detected, the prefabricated slab is horizontally placed, the overhanging racks on two sides of the prefabricated slab are respectively lapped on two bearing platforms, the downward vertical pressure is applied to the prefabricated slab by utilizing the pressing assembly until the plate body of the prefabricated slab is bent and deformed, at the moment, the condition of the overhanging rack is detected, and if the overhanging rack does not have obvious deformation, cracks and other damage conditions, the strength of the overhanging rack is proved to be qualified and enough to bear the loading pressure of the prefabricated slab.
Preferably, the upper surfaces of the two bearing platforms are respectively provided with a pressure sensor, each overhanging rack is lapped on the upper surface of the pressure sensor, and each pressure sensor is connected with a pressure display.
Through adopting above-mentioned technical scheme, when the subassembly pushes down the plate body of prefabricated plate, the overhanging rack bears the pressure of vertical direction equally, utilizes pressure sensor can show more that every overhanging rack bears concrete pressure to the relatively convenient and accurate bearing pressure who judges overhanging rack has more clear parameter reference to the bearing capacity of overhanging rack, does benefit to the construction safety in later stage simultaneously and judges.
Preferably, the pressing assembly comprises a vertically arranged support frame, a hydraulic machine arranged at the top end of the support frame and a pressing block arranged at the end part of a piston rod of the hydraulic machine, and the piston rod of the hydraulic machine is vertically arranged downwards.
By adopting the technical scheme, the concrete structure of the pressing assembly is provided, when the pressing assembly is used, the hydraulic machine is started, the plate body of the prefabricated plate is vertically pressed downwards, the contact area between the hydraulic machine and the prefabricated plate is increased by the pressing block, so that the pressure of the hydraulic machine is uniformly transmitted to the prefabricated plate, the pressure of each overhanging rack is further uniform as much as possible, and the detection accuracy is improved.
Preferably, the length direction of the lower pressing block is perpendicular to the length direction of the bearing platform, the bottom surface of the lower pressing block is connected with two distribution blocks, the length direction of the distribution blocks is parallel to the length direction of the bearing platform, and the two distribution blocks are symmetrically arranged around the center line of the prefabricated slab.
By adopting the technical scheme, the distribution block further improves the contact area between the hydraulic machine and the precast slab, so that the pressure of the hydraulic machine is transmitted to the precast slab more uniformly, the distribution block is symmetrically arranged relative to the center line of the precast slab, so that the pressure of each overhanging rack is as consistent as possible, and the detection accuracy is improved.
Preferably, the bottom surface of the detection area is horizontally and fixedly connected with a T-shaped sliding block, the length direction of the T-shaped sliding block is perpendicular to the length direction of the bearing platform, a bearing base is arranged on the T-shaped sliding block in a sliding mode, the bottom end of the supporting frame is fixedly connected to the bearing base, and a fixing assembly used for limiting the position of the bearing base is arranged on the bearing base.
The bearing base can slide along the length direction of the T-shaped sliding block, and then the lower pressing block is driven to slide along the length direction of the T-shaped sliding block, so that the prefabricated plate can be subjected to pressure test along the length direction of the T-shaped sliding block, and therefore the prefabricated plate is subjected to pressure test more pertinently when the bearing environments of the prefabricated plate are different, and the test comprehensiveness and the test applicability are improved. The fixing component is used for better ensuring the stability of the supporting frame in the testing process and improving the testing accuracy.
Preferably, the fixing assembly comprises a sliding groove formed in the bearing base in a penetrating mode, a fixing bolt vertically and fixedly connected to the bottom face of the detection area and a locking nut connected to the top end of the fixing bolt in a threaded mode, the fixing bolt vertically penetrates through the sliding groove, and the length direction of the sliding groove is perpendicular to the length direction of the bearing platform.
Through adopting above-mentioned technical scheme, provide a concrete structure of fixed subassembly, when needing to remove braced frame, unscrew lock nut, can slide along the length direction of T shape slider bearing the base, when needing to fix, only need screw lock nut for lock nut's bottom support tightly at the groove upper surface that slides can.
Preferably, the bearing platform is provided with a limiting assembly for limiting the overhanging rack.
By adopting the technical scheme, when the pressing assembly presses the prefabricated plate, the pressing plate is easy to displace, particularly, the pressing position deviates from the center of the prefabricated plate and is easy to misplace, the position of the limiting assembly to the overhanging rack is well limited, the stability of the prefabricated plate and the overhanging rack in the testing stage is ensured, and the accuracy of subsequent testing is improved.
Preferably, the limiting assembly comprises a fixing block fixedly connected to the upper surface of the bearing platform, an adjusting screw rod and a butt plate, wherein the adjusting screw rod is arranged by penetrating through the fixing block through horizontal threads, the butt plate is arranged at one end, close to the overhanging rack, of the adjusting screw rod, the length direction of the adjusting screw rod is parallel to the length direction of the bearing platform, and the butt plate is abutted to the side face of the overhanging rack.
Through adopting above-mentioned technical scheme, when using, rotating adjusting screw drives the butt board and removes along adjusting screw's direction, finally makes the butt board closely paste the side of the overhanging rack that corresponds, accomplishes limiting displacement, and this kind of spacing subassembly is when using, and the big or small condition of visual prefabricated plate is adjusted, and the test procedure of better adaptation different grade type prefabricated plate has improved convenience and the adaptability of test.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the prefabricated plate is erected on the two bearing platforms by arranging the pressing assemblies and the bearing platforms, the pressing assemblies are used for applying pressure to the prefabricated plate downwards, when the prefabricated plate can bear the maximum pressure until the prefabricated plate is damaged, the strength condition of the overhanging rack at the moment is detected, and if the overhanging rack is not damaged or damaged within a safe and controllable range at the moment, the strength of the overhanging rack is enough;
2. the pressing assembly can slide along the width direction of the bearing platform, so that different positions of the prefabricated plate are tested, and the test comprehensiveness is improved;
3. by arranging the pressing blocks and the distribution blocks, the pressing assemblies can apply pressure to the prefabricated slab more uniformly, the load condition of the prefabricated slab in an actual application state can be better simulated, and the test accuracy is improved;
4. the limit assembly is arranged on the bearing platform and is adjustable, so that the test equipment can be suitable for testing prefabricated plates of different sizes while ensuring the stability of the prefabricated plates in the test process, and the test adaptability is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a load bearing capacity testing device;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a schematic view of the structure of the securing assembly, primarily for the purpose of illustration;
fig. 4 is a partially enlarged view of a portion B in fig. 3.
Description of reference numerals: 1. a load-bearing platform; 2. detecting a region; 3. pressing the assembly; 31. a support frame; 32. a hydraulic press; 33. pressing the block; 4. a pressure sensor; 5. a pressure display; 6. allocating blocks; 7. a T-shaped slider; 8. a load bearing base; 9. a fixing assembly; 91. a sliding groove; 92. fixing the bolt; 93. a lock nut; 10. a limiting component; 101. a fixed block; 102. adjusting the screw rod; 103. a butt joint plate; 11. and (4) extending the rack outwards.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
Referring to fig. 1, a bearing capacity testing device for a prefabricated slab overhanging rack is disclosed in an embodiment of the present application. The bearing capacity testing equipment for the prefabricated plate overhanging rack comprises two rectangular block-shaped bearing platforms 1 which are horizontally arranged on the ground, wherein the two bearing platforms 1 are arranged in parallel, a detection area 2 used for testing is reserved between the two bearing platforms 1, and two ends of the prefabricated plate with the overhanging rack 11 are respectively lapped on the upper surfaces of the two bearing platforms 1 during testing.
Referring to fig. 1, a plurality of pressure sensors 4 are arranged on the upper surfaces of two bearing platforms 1, the pressure sensors 4 are in one-to-one correspondence with the overhanging racks 11, each overhanging rack 11 is lapped on the upper surface of each pressure sensor 4, and each pressure sensor 4 is connected with a pressure display 5. Utilize independent pressure sensor 4 and pressure display 5 for the pressure that every overhanging rack 11 received all can show through pressure display 5 comparatively clear timely, thereby acquires more comprehensive audio-visual test information.
Referring to fig. 1, a pressing assembly 3 for applying a vertical pressure to the precast slabs is arranged in a detection area 2, the pressing assembly 3 comprises a supporting frame 31 arranged in the monitoring area 2, a hydraulic machine 32 vertically arranged at the top end of the supporting frame 31, and a pressing block 33 fixedly connected with the end part of a piston rod of the hydraulic machine 32, the supporting frame 31 is arranged in an inverted C shape, the precast slabs penetrate through the vacant positions of the supporting frame 31 during testing, and the piston rod of the hydraulic machine 32 is vertically arranged downwards. When the prefabricated slab pressing device is used, the hydraulic press 32 is started, a piston rod of the hydraulic press 32 moves vertically downwards, and then the lower pressing block 33 is driven to press down the prefabricated slab.
Referring to fig. 1, in this embodiment, the length direction of the lower pressing block 33 is perpendicular to the length direction of the bearing platform 1, the bottom surface of the lower pressing block 33 is fixedly connected with the distribution block 6, the distribution block 6 is in a long strip shape, two distribution blocks 6 are arranged, the length directions of the two distribution blocks 6 are both parallel to the length direction of the bearing platform 1, and the distribution blocks 6 are symmetrically arranged about the center line of the prefabricated slab in the width direction; the distribution block 6 further improves the contact area between the hydraulic machine 32 and the precast slab, so that the pressure received by the precast slab is more uniform, the pressure received in the actual construction process is better simulated, and the detection accuracy is improved.
Referring to fig. 1 and 2, a bearing platform 1 is provided with a limiting assembly 10 for limiting the position of an outward extending rack 11, the length direction of a prefabricated slab is perpendicular to the length direction of the bearing platform 1, in this embodiment, two ends of the prefabricated slab in the length direction are respectively provided with three outward extending racks 11, each end of the prefabricated slab in the length direction is provided with two limiting assemblies 10, and the two limiting assemblies 10 are located at two sides of the prefabricated slab in the length direction.
Referring to fig. 1 and 2, the limiting assembly 10 includes a fixing block 101 fixedly connected to the upper surface of the supporting platform 1, an adjusting screw 102 horizontally threaded through the fixing block 101, and an abutting plate 103 disposed at an end of the adjusting screw 102 close to the overhanging rack 11, wherein the abutting plate 103 is in a circular plate shape, and the abutting plate 103 is fixedly connected to the adjusting screw 102. When the adjusting screw 102 is used, the adjusting screw is rotated to drive the abutting plate 103 to rotate and simultaneously approach the side surface of the extended rack 11 gradually, finally, the abutting plate 103 abuts against the side surface of the extended rack 11, and the plurality of limiting assemblies 10 cooperate to limit the position of the extended rack 11. The limiting assembly 10 ensures that the prefabricated plates are kept in a stable state in the testing process, and the adjusting screw 102 is adjustable, so that the testing process of the prefabricated plates with different sizes can be well adapted.
Referring to fig. 3 and 4, the bottom surface of the detection area 2 is provided with four T-shaped sliders 7, two of the four T-shaped sliders 7 are a pair, two pairs of the T-shaped sliders 7 are symmetrically arranged about a central line of the prefabricated slab in the length direction, each pair of the T-shaped sliders 7 is provided with a bearing base 8 in a sliding manner, the bottom surface of each bearing base 8 is provided with a T-shaped groove corresponding to the T-shaped slider 7, and the bottom ends of the support frames 31 are respectively and fixedly connected to the upper surfaces of the two bearing bases 8. This setting allows the support frame 31 to be moved in the longitudinal direction of the T-shaped slider 7, replacing the depressed position.
Referring to fig. 3 and 4, each bearing base 8 is provided with a fixing assembly 9 for fixedly connecting the position of the fixing assembly 9, each fixing assembly 9 comprises a sliding groove 91 formed in the bearing base 8 in a penetrating manner, a fixing bolt 92 vertically and fixedly connected to the bottom surface of the detection area 2 and a lock nut 93 connected to the top end of the fixing bolt 92 in a threaded manner, the fixing bolt 92 vertically penetrates through the sliding groove 91, the length direction of the sliding groove 91 is perpendicular to the length direction of the bearing platform 1, and the bottom end of the lock nut 93 abuts against the upper surface of the bearing base 8. When the fixing is performed, the locking nut 93 is screwed, so that the bottom end of the locking nut 93 is tightly abutted against the upper surface of the bearing base 8, and the fixing can be completed.
The implementation principle of the bearing capacity testing equipment for the prefabricated plate overhanging rack in the embodiment of the application is as follows: the prefabricated slabs are placed on the two bearing platforms 1 by using a travelling crane or a crane, so that the overhanging racks 11 are correspondingly placed on the pressure sensors 4 one by one;
rotating the adjusting screw 102 to drive the abutting plates 103 to abut against the corresponding side surfaces of the outward extending racks 11, so as to fix the prefabricated slab;
the hydraulic press 32 is activated to apply pressure vertically downwards to the prefabricated panels until the prefabricated panels are damaged by bending deformation, and the outward extending toothed racks 11 are observed, and if the outward extending toothed racks 11 are damaged to a lesser extent or not, i.e. representing that the outward extending toothed racks 11 can still maintain a strong strength when bearing a load exceeding the pressure resistance of the prefabricated panels, the strength of the outward extending toothed racks 11 is not problematic.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a bearing capacity test equipment of prefabricated plate overhanging rack which characterized in that: the prefabricated plate pressure testing device is characterized by comprising two bearing platforms (1), wherein the two bearing platforms (1) are arranged in parallel, a detection area (2) is reserved between the two bearing platforms (1), and a pressing assembly (3) used for applying pressure to a prefabricated plate is arranged in the detection area (2).
2. The apparatus for testing the bearing capacity of the overhanging rack of the prefabricated slab according to claim 1, wherein: the upper surfaces of the two bearing platforms (1) are provided with a plurality of pressure sensors (4), each overhanging rack (11) is lapped on the upper surface of each pressure sensor (4), and each pressure sensor (4) is connected with a pressure display (5).
3. The apparatus for testing the bearing capacity of the overhanging rack of the prefabricated slab according to claim 1, wherein: the pressing assembly (3) comprises a supporting frame (31) which is vertically arranged, a hydraulic machine (32) which is arranged at the top end of the supporting frame (31) and a pressing block (33) which is arranged at the end part of a piston rod of the hydraulic machine (32), and the piston rod of the hydraulic machine (32) is vertically arranged downwards.
4. The apparatus for testing the bearing capacity of the outrigger rack of the prefabricated slab according to claim 3, wherein: the length direction of the lower pressing block (33) is perpendicular to the length direction of the bearing platform (1), the bottom surface of the lower pressing block (33) is connected with two distribution blocks (6), the length direction of each distribution block (6) is parallel to the length direction of the bearing platform (1), and the two distribution blocks (6) are symmetrically arranged relative to the center line of the prefabricated slab.
5. The apparatus for testing the bearing capacity of the outrigger rack of the prefabricated slab according to claim 3, wherein: the horizontal fixed connection in bottom surface of detection area (2) is equipped with T shape slider (7), the length direction of the perpendicular load-bearing platform of length direction (1) of T shape slider (7), it bears base (8) to slide on T shape slider (7), the bottom fixed connection of braced frame (31) is on bearing base (8), be equipped with on bearing base (8) and be used for injecing fixed subassembly (9) of self position.
6. The apparatus for testing the bearing capacity of the overhanging rack of the prefabricated slab according to claim 5, wherein: the fixing assembly (9) comprises a sliding groove (91) formed in the through bearing base (8), a fixing bolt (92) vertically and fixedly connected to the bottom surface of the detection area (2) and a locking nut (93) connected to the top end of the fixing bolt (92) in a threaded mode, the fixing bolt (92) vertically penetrates through the sliding groove (91), and the length direction of the sliding groove (91) is perpendicular to the length direction of the bearing platform (1).
7. The apparatus for testing the bearing capacity of the overhanging rack of the prefabricated slab according to claim 1, wherein: and a limiting component (10) used for limiting the overhanging rack (11) is arranged on the bearing platform (1).
8. The apparatus for testing the bearing capacity of the outrigger rack of the prefabricated slab according to claim 7, wherein: the limiting assembly (10) comprises a fixing block (101) fixedly connected to the upper surface of the bearing platform (1), an adjusting screw (102) and a butt plate (103), wherein the horizontal threads penetrate through the adjusting screw (102) arranged on the fixing block (101), the butt plate is arranged at one end, close to the overhanging rack (11), of the adjusting screw (102), the length direction of the adjusting screw (102) is parallel to the length direction of the bearing platform (1), and the butt plate (103) is in butt joint with the side face of the overhanging rack (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120452798.9U CN214309946U (en) | 2021-03-02 | 2021-03-02 | Bearing capacity test equipment of prefabricated plate overhanging rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120452798.9U CN214309946U (en) | 2021-03-02 | 2021-03-02 | Bearing capacity test equipment of prefabricated plate overhanging rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214309946U true CN214309946U (en) | 2021-09-28 |
Family
ID=77835386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120452798.9U Expired - Fee Related CN214309946U (en) | 2021-03-02 | 2021-03-02 | Bearing capacity test equipment of prefabricated plate overhanging rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214309946U (en) |
-
2021
- 2021-03-02 CN CN202120452798.9U patent/CN214309946U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209027758U (en) | The experimental rig of phantom frame beam column interior joint receiving horizontal earthquake action | |
| CN105699203B (en) | A kind of experimental rig and method for measuring construction material compression strength under confined pressure | |
| CN113267410B (en) | Concrete prefabricated part strength testing device and testing method | |
| CN109540442A (en) | The experimental rig of phantom frame beam column interior joint receiving horizontal earthquake action | |
| CN110549487A (en) | Movable precast box girder web plate steel bar positioning jig frame and construction method thereof | |
| CN214309946U (en) | Bearing capacity test equipment of prefabricated plate overhanging rack | |
| CN106400694A (en) | Fabricated prestressing device and method for high pier scaffoldings | |
| CN211374350U (en) | Longitudinal tension and compression testing machine for steel rail of railway track | |
| CN108931436B (en) | Eccentric loading and shear creep combined action test device for soft rock | |
| CN216051189U (en) | Concrete precast slab detection device for building | |
| CN110823705A (en) | Indoor pressurization test device and method for bidirectional pressurization large-size concrete test block | |
| CN111624118B (en) | Test method for testing shear resistance of welding nail under condition of concrete cracking | |
| CN207435919U (en) | One kind puts a device | |
| CN106768637B (en) | Static test device for research on collapse resistance of space Liang Zhuzi structure | |
| CN210720006U (en) | Brickwork check out test set that shears | |
| CN112412096A (en) | Middle part jacking stretch-draw prestressing force's unbonded prestressing force carbon fiber plate reinforcing apparatus | |
| CN214668208U (en) | Wall horizontal loading test device | |
| CN216669562U (en) | Quick check out test set is used in wooden board resistance to compression | |
| CN213709152U (en) | Temporary support for simply supported beam slab and continuous beam slab | |
| CN217156102U (en) | Microcomputer control electro-hydraulic servo pressure testing machine | |
| CN213774608U (en) | Middle part jacking stretch-draw prestressing force's unbonded prestressing force carbon fiber plate reinforcing apparatus | |
| CN220552720U (en) | Horizontal compressive strength tester for preloaded beam test piece | |
| CN115468593A (en) | Equipment for detecting compressive capacity of pavement buried sensor | |
| CN214538507U (en) | Railway concrete simply supported beam static load test reaction frame | |
| CN218496623U (en) | Concrete analysis device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |