CN116593323B - Special detection device of building block brickwork shear strength - Google Patents
Special detection device of building block brickwork shear strength Download PDFInfo
- Publication number
- CN116593323B CN116593323B CN202310883035.3A CN202310883035A CN116593323B CN 116593323 B CN116593323 B CN 116593323B CN 202310883035 A CN202310883035 A CN 202310883035A CN 116593323 B CN116593323 B CN 116593323B
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- pressing plate
- hydraulic
- pressurizing assembly
- block
- shear strength
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- 238000001514 detection method Methods 0.000 title claims abstract description 41
- 238000003825 pressing Methods 0.000 claims abstract description 120
- 238000000034 method Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 9
- 239000004566 building material Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 6
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- 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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
Abstract
The invention relates to the field of building material detection, in particular to a special detection device for shear strength of a block masonry, which comprises an auxiliary pressurizing assembly and a main pressurizing assembly, wherein a piece to be detected is arranged between the auxiliary pressurizing assembly and the main pressurizing assembly; the auxiliary pressurizing assembly comprises a first base, a first hydraulic device, a first side pressing plate and a first middle pressing plate, and the main pressurizing assembly comprises a second base, a second hydraulic device, a second side pressing plate and a second middle pressing plate; a connecting rod is arranged between the first base and the second base, a protection device is arranged on the connecting rod, and the protection device comprises a mounting plate, a cross rod and a contact bolt; the auxiliary pressurizing assembly and the main pressurizing assembly are mutually independent, so that the device is convenient to assemble and disassemble, small in size, convenient to carry and free of site limitation in use, can rapidly complete shear strength detection in laboratories and construction sites, and is more practical.
Description
Technical Field
The invention relates to the technical field of building material detection, in particular to a special detection device for shear strength of a block masonry.
Background
The earthquake-resistant performance of the masonry structure is affected by the shear strength of the through joint, so that the detection of the shear strength of the actual masonry structure is necessary. At present, the in-situ single shear method, the in-situ single brick double shear method, the push-out method and the like are provided on the method for testing the shear strength of the masonry along the through seam in the field detection technical standard (GB\T 50315-2011) of masonry engineering in China. The to-be-detected piece comprises building blocks, cast-in-situ concrete masonry, sample cores for wall drilling and sampling and the like according to requirements, and has different structures and sizes.
The existing shear strength detection is generally carried out on a large-scale pressure testing machine, and is complete in function, but only can be used for laboratory detection, the use is limited, and the small-sized shear strength detection device is single in function, lacks of fixing a piece to be detected, is inconvenient to use, lacks of protective measures, and has potential safety hazards.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a special detection device for shear strength of a block masonry.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the special detection device for the shear strength of the block masonry comprises an auxiliary pressurizing assembly and a main pressurizing assembly, wherein a piece to be detected is arranged between the auxiliary pressurizing assembly and the main pressurizing assembly, and the auxiliary pressurizing assembly and the main pressurizing assembly are used for alternately applying pressure to two opposite surfaces of the piece to be detected to detect the shear strength; the auxiliary pressurizing assembly comprises a first base, a first hydraulic device, a first side pressing plate and a first middle pressing plate, and the main pressurizing assembly comprises a second base, a second hydraulic device, a second side pressing plate and a second middle pressing plate; a connecting rod is arranged between the first base and the second base, a protection device is arranged on the connecting rod, and the protection device comprises a mounting plate, a cross rod and a contact bolt; the mounting plate and the cross rod are used for blocking sputtered objects which are cracked in the detection process of the to-be-detected piece, and the contact bolt is propped against the to-be-detected piece and used for fixing the to-be-detected piece.
Preferably, the to-be-detected piece comprises a middle building block and side building blocks, the first middle pressing plate and the second middle pressing plate respectively prop against two ends of the middle building block, and the first side pressing plate and the second side pressing plate respectively prop against two ends of the side building block.
Preferably, one side of the first hydraulic device is provided with hydraulic rods corresponding to the first side pressing plates and the first middle pressing plates, and the first side pressing plates are provided with two groups and are symmetrically arranged on two sides of the first middle pressing plates;
and one side of the second hydraulic device is provided with a hydraulic column corresponding to the second side pressing plate and the second middle pressing plate, and the second side pressing plate and the second middle pressing plate are respectively in one-to-one correspondence with the first side pressing plate and the first middle pressing plate.
Preferably, a blocking seat is arranged at the bottom of the first side pressing plate, a sliding rod penetrates through the blocking seat, a buffer block is arranged at the top end of the sliding rod, and a buffer spring is arranged between the buffer block and the blocking seat;
the bottom of the second side pressing plate is provided with a positioning block, and the upper side of the positioning block is provided with a rubber pad.
Preferably, the nut and the quick-release structure are respectively arranged at two ends of the connecting rod, the quick-release structure comprises a clamping block, a limiting nut and a check ring, a U-shaped groove matched with the connecting rod is axially formed in the clamping block, and the check ring is matched with the outline of the clamping block.
Preferably, the mounting plate is detachably connected with the connecting rod through the clamp, the mounting plate is provided with two groups, the two groups of mounting plates are symmetrically arranged on two sides of the piece to be detected, and the cross rod is arranged between the two groups of mounting plates.
Preferably, through holes matched with the cross bars are formed in two sides of the mounting plate, and a plurality of threaded holes corresponding to the contact bolts are formed in the middle of the mounting plate in an array mode.
Preferably, the hydraulic rods are provided with a plurality of groups and are detachably connected with the first side pressing plate and the first middle pressing plate respectively, and a hydraulic cylinder corresponding to the hydraulic rods is arranged in the first hydraulic device;
the hydraulic columns are provided with a plurality of groups and are detachably connected with the second side pressing plate and the second middle pressing plate respectively, and the second hydraulic device is internally provided with an oil cylinder corresponding to the hydraulic columns.
Preferably, the first hydraulic device and the second hydraulic device are respectively provided with a first connector and a second connector, and the first connector and the second connector are electrically connected with a detection computer.
Compared with the prior art, the invention has the beneficial effects that:
1. the auxiliary pressurizing assembly and the main pressurizing assembly are mutually independent, so that the device is convenient to assemble and disassemble, small in size, convenient to carry and free of site limitation in use, can rapidly complete shear strength detection in a laboratory and a construction site, and is more practical;
2. the auxiliary pressurizing assembly and the main pressurizing assembly are arranged, so that the load can be applied to the to-be-detected piece alternately from two directions, the equipment functionality is improved, the use is more convenient and efficient, meanwhile, the protection device is arranged, the to-be-detected piece is limited and fixed, and the equipment operation safety and stability are improved.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional overall structure of a special detection device for shear strength of a block masonry, which is provided by the invention;
fig. 2 is a schematic diagram of a three-dimensional cross-sectional structure of a special detection device for shear strength of a block masonry, which is provided by the invention;
FIG. 3 is a schematic diagram of a three-dimensional structure of an auxiliary pressurizing assembly of the special shear strength detection device for the block masonry, which is provided by the invention;
FIG. 4 is a schematic three-dimensional structure diagram of a main pressurizing assembly of the special shear strength detection device for the block masonry, which is provided by the invention;
fig. 5 is a schematic three-dimensional structure diagram of a protecting device of a special detecting device for shear strength of a block masonry, which is provided by the invention;
fig. 6 is a schematic three-dimensional structure diagram of a quick-dismantling structure of the special detection device for shear strength of the block masonry, which is provided by the invention;
fig. 7 is a schematic structural diagram of a first embodiment of a to-be-detected member of a special detection device for shear strength of a block masonry according to the present invention;
FIG. 8 is a schematic diagram of the stress of a part to be detected of the special shear strength detection device for the block masonry, which is provided by the invention;
fig. 9 is a schematic structural diagram of a second embodiment of a to-be-detected member of the special detection device for shear strength of a block masonry, which is provided by the invention;
fig. 10 is a schematic structural view of a third embodiment of a to-be-detected member of the special detection device for shear strength of a block masonry.
In the figure: 1. an auxiliary pressurizing assembly; 11. a first base; 12. a first hydraulic device; 13. a first wire connector; 14. a first side pressure plate; 15. a blocking seat; 151. a buffer block; 152. a slide bar; 16. a first intermediate pressure plate; 2. a connecting rod; 3. a protective device; 31. a mounting plate; 32. a clamp; 33. a cross bar; 331. a through hole; 34. a contact bolt; 341. a threaded hole; 4. a quick-release structure; 41. a clamping block; 42. a limit nut; 43. a retainer ring; 5. a main pressurization assembly; 51. a second base; 52. a second hydraulic device; 53. a second wire connector; 54. a second side pressure plate; 541. a positioning block; 55. a second intermediate pressure plate; 6. a piece to be detected; 61. a middle building block; 62. side blocks 62.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-10, a special detection device for shear strength of a block masonry comprises an auxiliary pressurizing assembly 1 and a main pressurizing assembly 5, wherein the special detection device for shear strength is split into two parts of the auxiliary pressurizing assembly 1 and the main pressurizing assembly 5, so that the special detection device is convenient to carry and transport, a piece 6 to be detected is arranged between the auxiliary pressurizing assembly 1 and the main pressurizing assembly 5, and the auxiliary pressurizing assembly 1 and the main pressurizing assembly 5 are used for alternately applying pressure to two opposite surfaces of the piece 6 to be detected to detect the shear strength;
the auxiliary pressurizing assembly 1 comprises a first base 11, a first hydraulic device 12, a first side pressing plate 14 and a first middle pressing plate 16, wherein the first side pressing plate 14 is provided with two groups and is symmetrically arranged at two sides of the first middle pressing plate 16, one side of the first hydraulic device 12 is provided with hydraulic rods corresponding to the first side pressing plate 14 and the first middle pressing plate 16, the hydraulic rods are provided with a plurality of groups and are respectively detachably connected with the first side pressing plate 14 and the first middle pressing plate 16, hydraulic cylinders corresponding to the hydraulic rods are arranged in the first hydraulic device 12 and are mutually independent, an oil hydraulic sensor is arranged on the hydraulic cylinders through hydraulic pump driving work, a baffle seat 15 is arranged at the bottom of the first side pressing plate 14, a sliding rod 152 penetrates through the baffle seat 15, a buffer block 151 is arranged at the top end of the sliding rod 152, a buffer spring is arranged between the buffer block 151 and the baffle seat 15, when an operator places a part 6 to be detected, one end can prop against the buffer block 151 to slow down the impact, then quickly calibrate the position of the part 6 to be detected, the efficiency of switching the part 6 to be detected is improved, and the operation is more convenient;
the main pressurizing assembly 5 comprises a second base 51, a second hydraulic device 52, a second side pressure plate 54 and a second middle pressure plate 55, wherein one side of the second hydraulic device 52 is provided with a plurality of groups of hydraulic columns corresponding to the second side pressure plate 54 and the second middle pressure plate 55, the hydraulic columns are respectively detachably connected with the second side pressure plate 54 and the second middle pressure plate 55, the second side pressure plate 54 and the second middle pressure plate 55 with different sizes are convenient to replace, an oil cylinder corresponding to the hydraulic columns is arranged in the second hydraulic device 52 and driven by another group of hydraulic pumps, an oil hydraulic pressure sensor is arranged on the oil cylinder, the pressure exerted by the second side pressure plate 54 and the second middle pressure plate 55 is indirectly detected through the pressure of hydraulic oil, the bottom of the second side pressure plate 54 and the second middle pressure plate 55 are respectively in one-to-one correspondence with the first side pressure plate 14 and the first middle pressure plate 16, a positioning block 541 is arranged at the bottom of the second side pressure plate 54, and the upper side of the positioning block 541 is provided with a rubber pad for limiting the position of a part 6 to be detected;
the first hydraulic device 12 and the second hydraulic device 52 are respectively provided with a first wire connector 13 and a second wire connector 53, the first wire connector 13 and the second wire connector 53 are used for connecting respective hydraulic pumps and oil hydraulic pressure sensors, transmitting signals and controlling the hydraulic pumps to work, receiving detection data of the oil hydraulic pressure sensors, and the first wire connector 13 and the second wire connector 53 are electrically connected with a detection computer and used for controlling equipment to automatically work and collecting data so as to facilitate analysis;
for portability and more convenient operation, a handle and universal wheels can be arranged on the first base 11 and the second base 51, a connecting rod 2 is arranged between the first base 11 and the second base 51, the connecting rod 2 is used for assembling the auxiliary pressurizing assembly 1 and the main pressurizing assembly 5, nuts and quick-dismantling structures 4 are respectively arranged at two ends of the connecting rod 2, the quick-dismantling structures 4 comprise clamping blocks 41, limiting nuts 42 and check rings 43, the connecting rod 2 and the limiting nuts 42 are connected through threads, U-shaped grooves matched with the connecting rod 2 are axially formed in the clamping blocks 41, the clamping blocks 41 are cylinders or prisms, the shape of the inner ring of the check rings 43 is matched with the outline of the clamping blocks 41, the check rings 43 are fixedly connected with the second base 51, the clamping blocks 41 are positioned between the second base 51 and the limiting nuts 42, and when a part 6 to be detected needs to be placed, the clamping block 41 is taken down, the second base 51 is pulled, the operation space is increased, the to-be-detected piece 6 is conveniently placed between the auxiliary pressurizing assembly 1 and the main pressurizing assembly 5, the to-be-detected piece 6 is temporarily supported through the buffer block 151 and the positioning block 541, the clamping block 41 is assembled, the hydraulic pump works, the first middle pressing plate 16, the first side pressing plate 14, the second middle pressing plate 55 and the second side pressing plate 54 are caused to clamp the to-be-detected piece 6, the second base 51 pushes the clamping block 41 to prop against the limit nut 42 under the reaction force, the retainer ring 43 limits the clamping block 41 to move and avoid falling, the limit nut 42 limits the second base 51 and does not slide any more, the pressure of the hydraulic cylinder and the oil cylinder is ensured to be stably applied to the to-be-detected piece 6, and the shear strength detection is completed;
be equipped with protector 3 on the connecting rod 2, protector 3 includes mounting panel 31, horizontal pole 33 and contact bolt 34, can dismantle through clamp 32 between mounting panel 31 and the connecting rod 2 and be connected, mounting panel 31 is equipped with two sets of, the symmetry sets up in treating to detect piece 6 both sides, horizontal pole 33 sets up between two sets of mounting panels 31, the through-hole 331 with the horizontal pole 33 adaptation has been seted up to mounting panel 31 both sides, the screw hole 341 that a plurality of corresponds with contact bolt 34 has been seted up to mounting panel 31 middle part array, mounting panel 31 and horizontal pole 33 enclose treating to detect piece 6, be used for stopping treating the sputter that detects piece 6 burst in the testing process, contact bolt 34 offsets with treating to detect piece 6, be used for fixed treating to detect piece 6.
In the first embodiment, as shown in fig. 7 and 8, the to-be-detected member 6 is a masonry, the to-be-detected member 6 includes a middle block 61 and a side block 62, the middle block 61 and the side block 62 are bonded by mortar, the first middle pressing plate 16 and the second middle pressing plate 55 respectively abut against two ends of the middle block 61, and the first side pressing plate 14 and the second side pressing plate 54 respectively abut against two ends of the side block 62;
the first hydraulic device 12 works to control the first side pressing plates 14 on two sides to extend out to prop against the side building blocks 62, a gap of 1-5 mm is reserved between the first middle pressing plate 16 and one end of the middle building block 61, the second hydraulic device 52 controls the second middle pressing plate 55 to move to prop against the other end of the middle building block 61, and a gap of 1-5 mm is reserved between the second side pressing plate 54 and the side building block 62;
the hydraulic pump works, the pressure in the hydraulic cylinder and the oil cylinder rises, the hydraulic rod and the hydraulic column are pushed, two opposite pressures are applied to the to-be-detected piece 6 through the first side pressing plate 14 and the second middle pressing plate 55 on two sides, a monotonic loading method is adopted to carry out a shear strength test of the masonry, the crack development condition and the damage process of the to-be-detected piece 6 are observed in the loading process, and the damage value and the damage characteristic are recorded;
the first hydraulic device 12 and the second hydraulic device 52 are controlled to work, a gap of 1-5 mm is eliminated, the first middle pressing plate 16 is propped against the middle pressing block 61, the second side pressing plate 54 is propped against the side pressing block 62, a load is continuously applied to the to-be-detected piece 6 at a constant speed until the to-be-detected piece 6 is damaged, namely, the to-be-detected piece 6 is deformed or cracked, the middle pressing block 61 and the side pressing block 62 are cracked, balance is broken, the pressures of the first side pressing plate 14 and the second middle pressing plate 55 are respectively transmitted to the second side pressing plate 54 and the first middle pressing plate 16, and the time for cracking the to-be-detected piece 6 can be obtained by detecting the pressures of the second side pressing plate 54 and the first middle pressing plate 16 corresponding to oil cylinders or hydraulic cylinders.
In addition, the first side pressing plate 14 and the second middle pressing plate 55 can be controlled to be pressurized alternately as required, at this time, the second side pressing plate 54 and the first middle pressing plate 16 are not stressed, after a period of time, the second side pressing plate 54 and the first middle pressing plate 16 are controlled to be pressurized, at the same time, the first side pressing plate 14 and the second middle pressing plate 55 are released and are not stressed, the pressure is applied alternately in two directions, the alternating load is realized, the complex stress environment is simulated, and the member 6 to be detected is further tested.
In the second embodiment, the shear strength detection needs to destroy the to-be-detected piece 6, and cannot be directly detected on the wall, when the shear strength detection needs to be performed on the building wall, the shear strength of the masonry is detected by adopting a core drilling method, the core sample is drilled from the wall, the wall hole is filled with materials, the influence on the reliability of the wall is avoided, the shear strength test is performed on the core sample of the masonry, the shear strength of the masonry is converted according to the shear strength of the core sample of the masonry, the core sample of the masonry is generally cylindrical, as shown in fig. 9, the fixing is inconvenient, at this time, the contact bolt 34 needs to be rotated, the contact bolt 34 is urged to abut against the side curved surface of the core sample of the masonry, the fixing is realized, the rubber sleeve can be wrapped on the contact bolt 34, the contact reliability and stability are improved, and the height difference may exist between the middle block 61 and the side block 62, the positions of the first middle pressing plate 16, the first side pressing plate 14, the second middle pressing plate 55 and the second side pressing plate 54 need to be adjusted, and the end faces of the second middle pressing plate 55 and the second side pressing plate 62 are ensured to abut against the middle 61 and the side block 62 are stable, and the load is applied.
In the third embodiment, the part 6 to be detected is a block, and as shown in fig. 10, the first middle pressing plate 16, the first side pressing plate 14, the second middle pressing plate 55 and the second side pressing plate 54 directly abut against the surface of the block;
the load is continuously applied to the piece 6 to be detected at a constant speed, the loading speed is controlled according to the damage of the piece 6 to be detected within 1-3 min, when one sheared surface is sheared, the piece 6 to be detected is considered to be damaged, the experiment is stopped, the damage value and the damage characteristic are recorded, and the subsequent calculation of the shear strength is facilitated.
The working steps are as follows:
step 1, an auxiliary pressurizing assembly 1 and a main pressurizing assembly 5 are assembled through a connecting rod 2, protection devices 3 on two sides and at the bottom are installed, a piece 6 to be detected is placed between the auxiliary pressurizing assembly 1 and the main pressurizing assembly 5, and a test is prepared;
step 2, the first hydraulic device 12 and the second hydraulic device 52 work, the first side pressing plate 14 and the second middle pressing plate 55 are controlled to prop against the to-be-detected piece 6, and load is continuously applied to the to-be-detected piece 6 at a constant speed until the surface of the to-be-detected piece 6 is damaged or cracked;
step 3, stopping the experiment, recording the damage value and the damage characteristic, simultaneously, reversely working the first hydraulic device 12 and the second hydraulic device 52, withdrawing the first side pressing plate 14 and the second middle pressing plate 55, withdrawing the cross rod 33 at the bottom of the to-be-detected piece 6, and taking out the broken to-be-detected piece 6;
and 4, if the alternating load is required to be detected, repeating the step 1, controlling the first side pressing plate 14 and the second middle pressing plate 55 by the first hydraulic device 12 and the second hydraulic device 52 to prop against the to-be-detected piece 6, pressing the second side pressing plate 54 and the first middle pressing plate 16 after a period of time, loosening the first side pressing plate 14 and the second middle pressing plate 55, performing bidirectional pressing detection on the to-be-detected piece 6 in a reciprocating alternating manner, and simulating the shear strength of the to-be-detected piece 6 in a complex stress environment.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The special detection device for the shear strength of the block masonry is characterized by comprising an auxiliary pressurizing assembly (1) and a main pressurizing assembly (5), wherein a piece to be detected (6) is arranged between the auxiliary pressurizing assembly (1) and the main pressurizing assembly (5), and the auxiliary pressurizing assembly (1) and the main pressurizing assembly (5) are used for alternately applying pressure to two opposite surfaces of the piece to be detected (6) to detect the shear strength;
the auxiliary pressurizing assembly (1) comprises a first base (11), a first hydraulic device (12), a first side pressing plate (14) and a first middle pressing plate (16), wherein hydraulic rods corresponding to the first side pressing plate (14) and the first middle pressing plate (16) are arranged on one side of the first hydraulic device (12), and the first side pressing plate (14) is provided with two groups and is symmetrically arranged on two sides of the first middle pressing plate (16);
the main pressurizing assembly (5) comprises a second base (51), a second hydraulic device (52), a second side pressing plate (54) and a second middle pressing plate (55), wherein hydraulic columns corresponding to the second side pressing plate (54) and the second middle pressing plate (55) are arranged on one side of the second hydraulic device (52), and the second side pressing plate (54) and the second middle pressing plate (55) are respectively in one-to-one correspondence with the first side pressing plate (14) and the first middle pressing plate (16);
the bottom of the first side pressing plate (14) is provided with a blocking seat (15), a sliding rod (152) penetrates through the blocking seat (15), a buffer block (151) is arranged at the top end of the sliding rod (152), and a buffer spring is arranged between the buffer block (151) and the blocking seat (15);
a positioning block (541) is arranged at the bottom of the second side pressing plate (54), and a rubber pad is arranged on the upper side of the positioning block (541);
the hydraulic rods are provided with a plurality of groups and are detachably connected with the first side pressing plate (14) and the first middle pressing plate (16) respectively, and a hydraulic cylinder corresponding to the hydraulic rods is arranged in the first hydraulic device (12);
the hydraulic columns are provided with a plurality of groups and are detachably connected with the second side pressing plate (54) and the second middle pressing plate (55) respectively, and an oil cylinder corresponding to the hydraulic columns is arranged in the second hydraulic device (52);
the device is characterized in that a connecting rod (2) is arranged between the first base (11) and the second base (51), a protection device (3) is arranged on the connecting rod (2), the protection device (3) comprises a mounting plate (31), a cross rod (33) and a contact bolt (34), the mounting plate (31) and the connecting rod (2) are detachably connected through a clamp (32), the mounting plate (31) is provided with two groups, the two groups are symmetrically arranged on two sides of a piece to be detected (6), the cross rod (33) is arranged between the two groups of mounting plates (31), through holes (331) matched with the cross rod (33) are formed in two sides of the mounting plate (31), and a plurality of threaded holes (341) corresponding to the contact bolts (34) are formed in a middle array of the mounting plate (31);
the mounting plate (31) and the cross rod (33) are used for blocking sputtered objects which are cracked in the detection process of the to-be-detected piece (6), and the contact bolt (34) is propped against the to-be-detected piece (6) and used for fixing the to-be-detected piece (6).
2. The special detection device for shear strength of a block masonry according to claim 1, wherein the to-be-detected piece (6) comprises a middle block (61) and side blocks (62), the first middle pressing plate (16) and the second middle pressing plate (55) are respectively abutted against two ends of the middle block (61), and the first side pressing plate (14) and the second side pressing plate (54) are respectively abutted against two ends of the side blocks (62).
3. The special detection device for shear strength of a block masonry according to claim 1, wherein nuts and quick-release structures (4) are respectively arranged at two ends of the connecting rod (2), each quick-release structure (4) comprises a clamping block (41), a limiting nut (42) and a check ring (43), a U-shaped groove matched with the connecting rod (2) is axially formed in each clamping block (41), and the check rings (43) are matched with the outlines of the clamping blocks (41).
4. The special detection device for shear strength of the block masonry according to claim 1, wherein the first hydraulic device (12) and the second hydraulic device (52) are respectively provided with a first wire connector (13) and a second wire connector (53), and the first wire connector (13) and the second wire connector (53) are electrically connected with a detection computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310883035.3A CN116593323B (en) | 2023-07-19 | 2023-07-19 | Special detection device of building block brickwork shear strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310883035.3A CN116593323B (en) | 2023-07-19 | 2023-07-19 | Special detection device of building block brickwork shear strength |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116593323A CN116593323A (en) | 2023-08-15 |
| CN116593323B true CN116593323B (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310883035.3A Active CN116593323B (en) | 2023-07-19 | 2023-07-19 | Special detection device of building block brickwork shear strength |
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| CN (1) | CN116593323B (en) |
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