CN112697601A - Method for detecting strength of reinforced concrete prefabricated part - Google Patents
Method for detecting strength of reinforced concrete prefabricated part Download PDFInfo
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- CN112697601A CN112697601A CN202011495628.5A CN202011495628A CN112697601A CN 112697601 A CN112697601 A CN 112697601A CN 202011495628 A CN202011495628 A CN 202011495628A CN 112697601 A CN112697601 A CN 112697601A
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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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
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- 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
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- 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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- 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
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- 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
- G01N2203/025—Geometry of the test
- G01N2203/0252—Monoaxial, i.e. the forces being applied along a single axis of the specimen
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- 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
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a method for detecting the strength of a reinforced concrete prefabricated member, which adopts a prefabricated member strength detection device, wherein the prefabricated member strength detection device comprises a bottom plate, a downward pressing bracket, a bearing platform, a hydraulic cylinder and an extrusion body; the extrusion body is provided with two U-shaped grooves; a positioning mechanism is distributed in the vertical section of each U-shaped groove; the method for detecting the strength of the reinforced concrete prefabricated member by adopting the prefabricated member strength detection device comprises the following steps: s1, placing a prefabricated part; s2, adjusting the position of the movable slide block; s3, righting the prefabricated member; and S4, detecting the strength of the prefabricated member. The invention can solve the following problems in the strength detection of the prior prefabricated part: the prefab can't carry out the accurate adjustment to its position when detecting for there is the deviation in the position of extrusion head and the prefab of extruder, and the extruder only can detect its compressive strength, and detection range is comparatively single scheduling problem.
Description
Technical Field
The invention relates to the field of building component detection, in particular to a method for detecting the strength of a reinforced concrete prefabricated member.
Background
The reinforced concrete prefabricated member is produced and processed in a prefabricated field, and can be directly assembled on a building site after being produced, so that the construction efficiency of a building is improved.
The reinforced concrete prefabricated member shown in fig. 9 can be used as a cover plate, the prefabricated member is generally formed by a mold processing method, after the prefabricated member is formed and maintained, the strength of the prefabricated member needs to be detected, the prefabricated member is detected by applying pressure to the prefabricated member through an extruding machine, and the strength detection of the conventional prefabricated member has the following problems:
the position of the prefabricated part cannot be accurately adjusted when the prefabricated part is detected, so that the position of an extrusion head of an extruder and the position of the prefabricated part have deviation, the strength detection accuracy of the prefabricated part is poor, a small amount of displacement is generated when the strength of the prefabricated part is detected, the position of the prefabricated part is unstable, and the strength detection effect of the prefabricated part is influenced; the extruder can only detect the compressive strength of the extruder, and the detection range is single.
Disclosure of Invention
In order to solve the problems, the invention provides a method for detecting the strength of a reinforced concrete prefabricated part, which adopts a prefabricated part strength detection device, wherein the prefabricated part strength detection device comprises a bottom plate, a downward pressing support, a bearing platform, a hydraulic cylinder and an extrusion body, the bearing platform is arranged on the upper side surface of the middle part of the bottom plate through a bearing upright post, the extrusion body is distributed right above the bearing platform, the upper side surface of the extrusion body is connected with the telescopic end of the hydraulic cylinder, the fixed end of the hydraulic cylinder is arranged on the downward pressing support of an L-shaped structure, and the bottom of the downward pressing support is arranged on the upper side surface of the bottom plate. When the preform is crushed, the strength of the preform is judged to be in accordance with the standard by recording the pressure generated by the hydraulic cylinder.
The extrusion body on be provided with two U type grooves, U type groove opening down and symmetrical arrangement, be provided with the rotation motor between two U type grooves, the rotation motor is biax output motor, all be connected with the removal slider through sliding fit's mode on the horizontal segment in every U type groove, be connected with the inner that rotates the lead screw through the shaft coupling on the output shaft of rotation motor, the middle part that rotates the lead screw passes through screw-thread fit with removing the slider and is connected, the outer end that rotates the lead screw passes through the bearing and installs on the lateral wall in U type groove, two screw thread opposite directions that rotate the lead screw, after the prefab was placed on the bearing platform, rotate the motor rotation according to the model control of prefab, make two removal sliders carry out inside and outside removal.
And a position correcting mechanism is uniformly distributed in the vertical section of each U-shaped groove, the position correcting mechanism is connected with the movable sliding block through an L-shaped connecting rod, and the movable sliding block can move synchronously by the aid of the electric position correcting mechanism.
The correcting mechanism comprises a correcting follow-up block connected to the lower end of the L-shaped connecting rod, the correcting follow-up block is in sliding fit with the vertical section of the U-shaped groove, the correcting follow-up block is connected with the upper end of the correcting rod in a sliding fit mode, one end, far away from the L-shaped connecting rod, of the top of the correcting follow-up block is provided with a spring support with an L-shaped structure, the lower side surface of the upper end of the spring support is connected with the top of the correcting rod through a downward pressing spring, and the lower end of the correcting rod is located below the extrusion body; the positive pole lower extreme dorsal surface all installs the normal board through the positive telescopic link, concrete during operation, the position of prefab can be corrected to the positive mechanism, make the middle part position of prefab corresponding with the middle part position of the extrusion body, thereby the extrusion body can be to the even application holding down force of prefab, increase prefab intensity detection precision, place the completion back when the prefab, the control pneumatic cylinder carries out the extension motion, the lower extreme of positive pole can move to in the prefab slot, the normal board in same slot is corrected the position at prefab both ends under the effect of positive telescopic link, make prefab middle part position corresponding with the position of the extrusion body, the control pneumatic cylinder continues the extension motion, the positive pole can drive down the pressure spring and contract, so that the downside of the extrusion body can exert pressure to the side of prefab.
The method for detecting the strength of the reinforced concrete prefabricated member by adopting the prefabricated member strength detection device comprises the following steps:
s1, placing a prefabricated part: firstly, placing a reinforced concrete prefabricated part formed by maintenance on the upper side surface of a bearing platform;
s2, adjusting the position of the movable slide block: the rotating motor is controlled to rotate according to the position of the slotted hole in the prefabricated part, so that the movable sliding block can synchronously move inwards and outwards, and the position of the righting mechanism corresponds to the position of the slotted hole at the outermost end of the prefabricated part;
s3, correcting the preform: after the position of the movable sliding block is adjusted, the hydraulic cylinder is controlled to perform extension movement, the lower end of the righting rod can move into a prefabricated part slotted hole, and the righting plates in the same slotted hole correct the positions of the two ends of the prefabricated part under the action of the righting telescopic rod, so that the middle position of the prefabricated part corresponds to the position of the extrusion body;
s4, detecting the strength of the prefabricated part: the control pneumatic cylinder continues the extension motion, and the normal position pole can drive and push down the spring and contract to the downside of extrusion body can exert pressure to the last side of prefab, when the pneumatic cylinder drove the extrusion body and extrudees the fracture with the prefab, notes the lower pressure degree of pneumatic cylinder to the prefab, thereby judges whether the intensity of prefab meets the requirements.
As a preferred technical scheme of the invention, a square groove is formed in the bottom of the righting rod, the side walls of the two ends of the square groove are connected with an outer support rod in a sliding fit manner, an outer support plate is arranged on the side surface of the outer end of the outer support rod, a convex plate is arranged at the top of the inner end of the outer support rod, the convex plate is connected to the inner wall of the square groove through a compression spring, and the compression spring can drive the outer support rod to be in a contracted state.
As a preferable technical scheme of the invention, the middle part of the lower end of the square groove is connected with a lower pressing block in a sliding fit mode, the top of the lower pressing block is arranged on the inner wall of the upper end of the square groove through a lower pressing spring, and the inner end of the outer support rod can be abutted against the side surface of the upper end of the lower pressing block.
As a preferred technical scheme of the invention, the inner end of the outer supporting rod is provided with a chute, the upper end of the lower pressing block is of an isosceles trapezoid structure, the isosceles trapezoid structure of the lower pressing block is matched with the chute of the outer supporting rod, when the bottom of the righting rod moves to the prefabricated member, the lower pressing block can be contacted with the top of the bearing platform, so that the lower pressing block can move upwards, the lower pressing block can drive the outer supporting rod to move outwards when moving upwards, the two outer supporting plates can synchronously move outwards along with the outer supporting rod, the position of the slotted hole of the prefabricated member is righted, the alignment precision of the prefabricated member and the extruding body is increased, the stability of the prefabricated member can be increased by the fact that the outer supporting plates abut against the side wall of the slotted hole, and a small amount of displacement can be.
As a preferable technical scheme of the invention, the lower end of the righting plate is of an arc-shaped structure, the lower end of the righting plate is arranged in an inward inclined mode, and the inward inclined mode of the righting plate enables the precast slab to be pushed outwards, so that the left and right positions of the precast slab are corrected.
As a preferred technical scheme of the invention, the outer side wall of the vertical section of the U-shaped groove is provided with an adjusting groove which penetrates through the extruding body, a locking sleeve is arranged in the adjusting groove, a locking rod is arranged in the locking sleeve and penetrates through the righting follow-up block, and the position of the positive pole corresponding to the locking rod is provided with a locking groove, the locking rod is inserted in the locking groove, the inner end of the locking rod can be inserted in the locking groove by pressing inwards, thereby the height position of the positioning rod is locked, when the hydraulic cylinder drives the extrusion body to move downwards, the lower pressing block drives the outer supporting plate to move outwards through the outer supporting rod, the outer supporting plate applies an outward jacking force to the groove hole of the prefabricated part to continue to extend the hydraulic cylinder, so that the outer supporting plate generates enough jacking force to damage the slotted hole of the prefabricated member, and the down force generated by the hydraulic cylinder is recorded at the moment, thereby determining whether the supporting force of the slotted hole of the prefabricated member meets the requirement.
As a preferable technical scheme of the invention, the locking sleeve is internally provided with an annular rubber pad used for preventing the locking rod from skidding, and the annular rubber pad prevents the locking rod from moving under the action of no external force.
As a preferred technical scheme, the protection plate is symmetrically arranged on the side surface of the bearing platform through a hinge, a T-shaped sliding groove is formed in the inner side surface of the lower end of the protection plate, a square column is arranged on the lower side surface of the middle of the bearing platform, an adjusting push rod is symmetrically arranged on the side surface of the square column, a T-shaped sliding block is arranged on the telescopic end of the adjusting push rod through a hinge, the T-shaped sliding block is in sliding fit with the T-shaped sliding groove, the protection plate can be driven to rotate through the extension movement of the adjusting push rod, therefore, the protection plate is at a proper inclination angle, and the protection plate can prevent scraps generated by extrusion and fragmentation of the prefabricated.
The invention has the beneficial effects that:
the method can be used for detecting the strength of the concrete prefabricated part with the slotted holes uniformly arranged in the middle, and can be used for performing normal position treatment on the prefabricated part at different slotted hole arrangement positions before the prefabricated part is detected, so that the method can uniformly apply pressure on the prefabricated part, the detection precision and the detection effect of the strength of the prefabricated part are improved, and the method can also be used for protecting the stones splashed when the prefabricated part is crushed, and the detection safety of the prefabricated part is improved;
the protection plate can be driven to rotate by adjusting the extension motion of the push rod, so that the protection plate is at a proper inclination angle, and the protection plate can prevent scraps generated by extrusion and fragmentation of the prefabricated part from splashing to hurt people;
thirdly, the rotating motor is controlled to rotate according to the positions of the slotted holes on the prefabricated member, so that the two movable sliding blocks can synchronously move inside and outside, the position of the righting mechanism corresponds to the position of the slotted hole at the outermost end of the prefabricated member, and the applicability of the invention is improved;
the correcting plates correct the positions of the left end and the right end of the prefabricated member under the action of the correcting telescopic rods, the lower pressing blocks can drive the outer support rods to move outwards, the two outer support plates can synchronously move outwards along with the outer support rods, and therefore the front and rear positions of the prefabricated member are corrected, the middle position of the prefabricated member corresponds to the position of the extrusion body, and the positioning accuracy of the prefabricated member is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic structural view of embodiment 1;
FIG. 3 is a sectional view of the supporting platform, the shielding plate and the adjusting push rod in the embodiment 1;
FIG. 4 is a sectional view of the extrusion body and the rotary feed screw in embodiment 1;
FIG. 5 is a sectional view showing the extrusion body, the movable block, the rotary motor and the rotary screw in embodiment 1;
FIG. 6 is a sectional view of a centering rod in embodiment 1;
FIG. 7 is a schematic structural view of embodiment 2;
FIG. 8 is a sectional view showing the position between the pressing body, the position correcting follower block and the position correcting lever in embodiment 2;
fig. 9 is a schematic structural view of a concrete preform.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Example 1
As shown in figures 2-8, a method for detecting the strength of a reinforced concrete prefabricated member adopts a prefabricated member strength detection device which comprises a bottom plate 1, a lower pressing support 2, a bearing platform 3, a hydraulic cylinder 4 and an extrusion body 5, wherein the bearing platform 3 is installed on the upper side surface of the middle part of the bottom plate 1 through a bearing upright post 11, the extrusion body 5 is distributed right above the bearing platform 3, the upper side surface of the extrusion body 5 is connected with the telescopic end of the hydraulic cylinder 4, the fixed end of the hydraulic cylinder 4 is installed on the lower pressing support 2 of an L-shaped structure, the bottom of the lower pressing support 2 is installed on the upper side surface of the bottom plate 1, the invention can detect the strength of the concrete prefabricated member with a groove hole uniformly arranged in the middle part, the prefabricated member is firstly placed on the bearing platform 3, the extrusion body 5 can be driven to apply pressure to the prefabricated member through the extension movement of the hydraulic cylinder 4, when the preform is crushed, the strength of the preform is judged to be within the standard by recording the pressure generated by the hydraulic cylinder 4.
The side of cushion cap 3 on install protection plate 31 through the hinge symmetry, be provided with T type spout 32 on the lower extreme medial surface of protection plate 31, be provided with square post 33 on the middle part downside of cushion cap 3, the symmetry is installed and is adjusted push rod 34 on the side of square post 33, adjust push rod 34's flexible serving and have T type slider 35 through the hinge installation, T type slider 35 and T type spout 32 sliding fit, extension motion through adjusting push rod 34 can drive protection plate 31 and rotate, thereby protection plate 31 is in suitable inclination, protection plate 31's setting can prevent that the prefab from being splashed by the piece of the cracked production of extrusion and hindering the people.
The extrusion body 5 on be provided with two U type grooves 51, U type groove 51 opening down and symmetrical arrangement, be provided with between two U type grooves 51 and rotate motor 55, it is biax output motor to rotate motor 55, all be connected with removal slider 52 through sliding fit's mode on the horizontal segment of every U type groove 51, it is connected with the inner that rotates lead screw 53 through the shaft coupling on the output shaft of rotation motor 55, the middle part that rotates lead screw 53 passes through screw-thread fit with removal slider 52 and is connected, the outer end that rotates lead screw 53 passes through the bearing and installs on the lateral wall of U type groove 51, two screw thread opposite directions that rotate lead screw 53, after the prefab was placed on bearing platform 3, rotate motor 55 according to the model control of prefab and rotate, make two removal sliders 52 carry out inside and outside synchronous removal.
A position correcting mechanism 6 is distributed in the vertical section of each U-shaped groove 51, the position correcting mechanism 6 is connected with the movable sliding block 52 through an L-shaped connecting rod 54, and the electric position correcting mechanism 6 can move synchronously by the movement of the movable sliding block 52.
The correcting mechanism 6 comprises a correcting follow-up block 61 connected to the lower end of the L-shaped connecting rod 54, the correcting follow-up block 61 is in sliding fit with the vertical section of the U-shaped groove 51, the correcting follow-up block 61 is connected with the upper end of a correcting rod 62 in a sliding fit mode, one end, far away from the L-shaped connecting rod 54, of the top of the correcting follow-up block 61 is provided with an L-shaped spring support 63, the lower side surface of the upper end of the spring support 63 is connected with the top of the correcting rod 62 through a downward pressing spring 64, and the lower end of the correcting rod 62 is located below the extruding body 5; the lower end opposite sides of the righting rod 62 are provided with righting plates 66 through righting telescopic rods 65, the lower ends of the righting plates 66 are of arc structures, the lower ends of the righting plates 66 are arranged in an inward inclined mode, and the prefabricated plates can be pushed outwards due to the fact that the righting plates 66 are inclined inwards, so that the left and right positions of the prefabricated plates are corrected; during operation, normal position mechanism 6 can correct the position of prefab, make the middle part position of prefab corresponding with the middle part position of extrusion body 5, thereby extrusion body 5 can be to the even applanation overdraft of prefab, increase prefab intensity detection precision, place the back of accomplishing when the prefab, control pneumatic cylinder 4 carries out the extension motion, the lower extreme of normal position pole 62 can move the prefab slotted hole downthehole, normal position board 66 in same slotted hole corrects the position at prefab both ends under the effect of normal position telescopic link 65, make the position of prefab middle part position and extrusion body 5 corresponding, control pneumatic cylinder 4 continues the extension motion, normal position pole 62 can drive down spring 64 and contract, so that the downside of extrusion body 5 can exert pressure to the side of going up of prefab.
The bottom of the righting pole 62 on be provided with square groove 67, all be connected with an outer vaulting pole 68 through sliding fit's mode on the lateral wall at square groove 67 both ends, be provided with outer fagging 69 on the outer end side of outer vaulting pole 68, the inner top of outer vaulting pole 68 is provided with the flange, the flange passes through compression spring 610 to be connected on the inner wall of square groove 67, compression spring 610 can drive outer vaulting pole 68 and be in the state of shrink.
The middle part of the lower end of the square groove 67 is connected with a lower pressing block 611 in a sliding fit mode, the top of the lower pressing block 611 is installed on the inner wall of the upper end of the square groove 67 through a lower pressing spring 612, and the inner end of the outer support rod 68 can abut against the side surface of the upper end of the lower pressing block 611.
Outer vaulting pole 68 the inner be provided with the chute, the upper end of briquetting 611 down is the isosceles trapezoid structure, the isosceles trapezoid structure of briquetting 611 matches with outer vaulting pole 68's chute down, move the prefab when positive pole 62 bottom, briquetting 611 can contact with the top of cushion cap 3 down, thereby briquetting 611 can the rebound down, can drive outer vaulting pole 68 and outwards move when briquetting 611 rebound down, two outer faggings 69 can outwards move in step thereupon, thereby the position of prefab slotted hole direction obtains just, increase the precision of prefab and extrusion body 5 counterpoint, and support the stability that can increase the prefab at the lateral wall of slotted hole through outer fagging 69, take place a small amount of displacements when preventing the prefab from extrudeing.
As shown in FIG. 1, the method for detecting the strength of the reinforced concrete prefabricated member by using the prefabricated member strength detection device comprises the following steps:
s1, placing a prefabricated part: firstly, placing a reinforced concrete prefabricated part formed by maintenance on the upper side surface of a bearing platform 3;
s2, adjusting the position of the movable slider 52: the rotation of the rotating motor 55 is controlled according to the position of the slotted hole on the prefabricated member, so that the moving slide block 52 can synchronously move inwards and outwards, and the position of the righting mechanism 6 corresponds to the position of the slotted hole at the outermost end of the prefabricated member;
s3, correcting the preform: after the position of the movable sliding block 52 is adjusted, the hydraulic cylinder 4 is controlled to perform extension movement, the lower end of the righting rod 62 moves into a prefabricated part slotted hole, and the righting plates 66 in the same slotted hole correct the positions of the two ends of the prefabricated part under the action of the righting telescopic rod 65, so that the middle position of the prefabricated part corresponds to the position of the extrusion body 5;
s4, detecting the strength of the prefabricated part: control pneumatic cylinder 4 continues the extension motion, and normal position pole 62 can drive and push down spring 64 and contract to the downside of extrusion body 5 can exert pressure to the last side of prefab, when pneumatic cylinder 4 drove extrusion body 5 and extrude the fracture with the prefab, note down the pressure degree of pneumatic cylinder 4 to the prefab, thereby judge whether the intensity of prefab meets the requirements.
This embodiment can detect the whole compressive strength of prefab, and corrects its position before the prefab carries out compressive strength and detects, increases the precision that prefab intensity detected.
Example 2
In the present embodiment, a lock lever 58 for restricting the position lever 62 is provided on the basis of embodiment 1;
the outer side wall of the vertical section of the U-shaped groove 51 is provided with an adjusting groove 56, the adjusting groove 56 penetrates through the extrusion body 5, a locking sleeve 57 is arranged in the adjusting groove 56, a locking rod 58 is arranged in the locking sleeve 57, the locking rod 58 penetrates through the righting follow-up block 61, a locking groove 621 is arranged on the righting rod 62 corresponding to the locking rod 58, the locking rod 58 is inserted in the locking groove 621, an annular rubber pad used for preventing the locking rod 58 from skidding is arranged in the locking sleeve 57, and the annular rubber pad enables the locking rod 58 not to move under the effect of no external force; the locking rod 58 is pressed inwards to enable the inner end of the locking rod to penetrate into the locking groove 621, so that the height position of the positive rod 62 is locked, when the hydraulic cylinder 4 drives the extrusion body 5 to move downwards, the lower pressing block 611 drives the outer supporting plate 69 to move outwards through the outer supporting rod 68, the outer supporting plate 69 applies outward jacking force to the slotted hole of the prefabricated part, the hydraulic cylinder 4 continues to extend, the outer supporting plate 69 generates enough jacking force to destroy the slotted hole of the prefabricated part, the downward pressure generated by the hydraulic cylinder 4 is recorded at the moment, and whether the supporting force of the slotted hole of the prefabricated part meets the requirement or not is determined.
As shown in FIG. 1, the method for detecting the strength of the reinforced concrete prefabricated member by using the prefabricated member strength detection device comprises the following steps:
S1-S2 are the same as the operation steps in embodiment 1 and are not described again;
s3, correcting the preform: after the position of the movable sliding block 52 is adjusted, the locking rod 58 is pressed inwards to enable the inner end of the locking rod to be inserted into the locking groove 621, so that the height position of the alignment rod 62 is locked, the hydraulic cylinder 4 is controlled to perform extension movement, and the lower pressing block 611 abuts against the upper side surface of the supporting platform 3, so that the outer supporting plate 69 aligns the position of the prefabricated member;
s4, detecting the strength of the prefabricated part: the hydraulic cylinder 4 is controlled to continue to extend, the lower pressing block 611 drives the outer supporting plate 69 to move outwards through the outer supporting rod 68, the outer supporting plate 69 applies outward jacking force to the slotted hole of the prefabricated part, the outer supporting plate 69 generates enough jacking force to damage the slotted hole of the prefabricated part, the lower pressure generated by the hydraulic cylinder 4 is recorded at the moment, whether the supporting force of the slotted hole of the prefabricated part meets the requirement or not is determined, and the aligning mechanism 6 can detect the tensile strength of different slotted holes of the prefabricated part through rotation of the rotating motor 55.
In the embodiment, the tensile strength of the groove hole of the prefabricated member can be detected, and the outer supporting plates 69 which are symmetrically arranged are used for applying the outer supporting force outwards, so that the groove hole of the prefabricated member can be uniformly stressed, and the detection effect of the tensile strength of the groove hole of the prefabricated member is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a reinforced concrete prefab intensity detection method, this reinforced concrete prefab intensity detection method adopts following prefab intensity detection device, and prefab intensity detection device includes bottom plate (1), pushes down support (2), cushion cap (3), pneumatic cylinder (4) and extrusion body (5), its characterized in that: the upper side surface of the middle part of the bottom plate (1) is provided with a bearing platform (3) through a bearing upright post (11), an extruding body (5) is distributed right above the bearing platform (3), the upper side surface of the extruding body (5) is connected with the telescopic end of a hydraulic cylinder (4), the fixed end of the hydraulic cylinder (4) is arranged on a lower pressing support (2) of an L-shaped structure, and the bottom of the lower pressing support (2) is arranged on the upper side surface of the bottom plate (1);
the extrusion body (5) is provided with two U-shaped grooves (51), the openings of the U-shaped grooves (51) are downward and are symmetrically arranged, a rotating motor (55) is arranged between the two U-shaped grooves (51), the rotating motor (55) is a double-shaft output motor, a moving slide block (52) is connected to the horizontal section of each U-shaped groove (51) in a sliding fit mode, an output shaft of the rotating motor (55) is connected with the inner end of a rotating lead screw (53) through a coupler, the middle part of the rotating lead screw (53) is connected with the moving slide block (52) in a threaded fit mode, the outer end of the rotating lead screw (53) is installed on the side wall of each U-shaped groove (51) through a bearing, and the thread directions of the two rotating lead screws (;
a position correcting mechanism (6) is distributed in the vertical section of each U-shaped groove (51), and the position correcting mechanism (6) is connected with the movable sliding block (52) through an L-shaped connecting rod (54);
the correcting mechanism (6) comprises a correcting follow-up block (61) connected to the lower end of the L-shaped connecting rod (54), the correcting follow-up block (61) is in sliding fit with the vertical section of the U-shaped groove (51), the correcting follow-up block (61) is connected with the upper end of the correcting rod (62) in a sliding fit mode, an L-shaped spring support (63) is arranged at one end, far away from the L-shaped connecting rod (54), of the top of the correcting follow-up block (61), the lower side surface of the upper end of the spring support (63) is connected with the top of the correcting rod (62) through a pressing spring (64), and a correcting plate (66) is mounted on the opposite side surfaces of the lower end of the correcting rod (62) through a correcting telescopic rod (65);
the method for detecting the strength of the reinforced concrete prefabricated member by adopting the prefabricated member strength detection device comprises the following steps:
s1, placing a prefabricated part: firstly, placing a reinforced concrete prefabricated part formed by maintenance on the upper side surface of a bearing platform (3);
s2, adjusting the position of the movable slider (52): controlling a rotating motor (55) to rotate according to the positions of the slotted holes on the prefabricated member, so that a moving slide block (52) can synchronously move inwards and outwards, and the position of a righting mechanism (6) corresponds to the position of the slotted hole at the outermost end of the prefabricated member;
s3, correcting the preform: after the position of the movable sliding block (52) is adjusted, the hydraulic cylinder (4) is controlled to perform extension movement, the lower end of the righting rod (62) can move into a prefabricated part slotted hole, and the righting plates (66) in the same slotted hole correct the positions of the two ends of the prefabricated part under the action of the righting telescopic rod (65), so that the middle position of the prefabricated part corresponds to the position of the extrusion body (5);
s4, detecting the strength of the prefabricated part: control pneumatic cylinder (4) continue the extension motion, and normal position pole (62) can drive down compression spring (64) and contract to the downside of extrusion body (5) can exert pressure to the side of going up of prefab, when pneumatic cylinder (4) drive extrusion body (5) extrusion fracture with the prefab, note pneumatic cylinder (4) down the pressure degree to the prefab, thereby judge whether the intensity of prefab meets the requirements.
2. The method for detecting the strength of the reinforced concrete prefabricated member according to claim 1, wherein the method comprises the following steps: the side of cushion cap (3) on install protection plate (31) through the hinge symmetry, be provided with T type spout (32) on the lower extreme medial surface of protection plate (31), be provided with square post (33) on the middle part downside of cushion cap (3), symmetrical installation has adjusting push rod (34) on the side of square post (33), telescopic end of adjusting push rod (34) is served and is installed T type slider (35), T type slider (35) and T type spout (32) sliding fit.
3. The method for detecting the strength of the reinforced concrete prefabricated member according to claim 2, wherein the method comprises the following steps: the bottom of normal position pole (62) on be provided with square groove (67), all be connected with one outer vaulting pole (68) through sliding fit's mode on the lateral wall at square groove (67) both ends, be provided with outer fagging (69) on the outer end side of outer vaulting pole (68), the inner top of outer vaulting pole (68) is provided with the flange, the flange passes through compression spring (610) and connects on the inner wall of square groove (67).
4. The method for detecting the strength of the reinforced concrete prefabricated member according to claim 3, wherein the method comprises the following steps: the middle part of the lower end of the square groove (67) is connected with a lower pressing block (611) in a sliding fit mode, and the top of the lower pressing block (611) is installed on the inner wall of the upper end of the square groove (67) through a lower pressing spring (612).
5. The method for detecting the strength of the reinforced concrete prefabricated member as claimed in claim 4, wherein the method comprises the following steps: the inner end of the outer support rod (68) is provided with a chute, the upper end of the lower pressing block (611) is of an isosceles trapezoid structure, and the isosceles trapezoid structure of the lower pressing block (611) is matched with the chute of the outer support rod (68).
6. The method for detecting the strength of the reinforced concrete prefabricated member according to claim 2, wherein the method comprises the following steps: the lower end of the position correcting plate (66) is of an arc-shaped structure, and the lower end of the position correcting plate (66) is arranged in an inward inclined mode.
7. The method for detecting the strength of the reinforced concrete prefabricated member according to any one of claims 1 to 6, wherein: the lateral wall of the vertical section of U type groove (51) be provided with adjustment tank (56), adjustment tank (56) run through extrusion body (5), be provided with locking cover (57) in adjustment tank (56), be provided with locking lever (58) in locking cover (57), locking lever (58) pass rightly and follow-up piece (61), and the position that corresponds locking lever (58) on rightly position pole (62) is provided with locking groove (621), locking lever (58) alternate in locking groove (621).
8. The method for detecting the strength of the reinforced concrete prefabricated member according to claim 7, wherein the method comprises the following steps: the locking sleeve (57) is internally provided with an annular rubber pad used for preventing the locking rod (58) from skidding.
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| CN202011495628.5A CN112697601A (en) | 2020-12-17 | 2020-12-17 | Method for detecting strength of reinforced concrete prefabricated part |
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| CN202011495628.5A CN112697601A (en) | 2020-12-17 | 2020-12-17 | Method for detecting strength of reinforced concrete prefabricated part |
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| CN113776940A (en) * | 2021-09-14 | 2021-12-10 | 李金成 | Bridge intensity detects uses auxiliary assembly |
| CN114594003A (en) * | 2022-05-10 | 2022-06-07 | 南通科达建材科技股份有限公司 | Assembled concrete prefabricated component intensity check out test set |
| CN114608956A (en) * | 2022-05-11 | 2022-06-10 | 徐州鼎博混凝土制品有限公司 | Concrete product production compressive strength detection device |
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| CN115046862A (en) * | 2022-07-27 | 2022-09-13 | 贵州大西南检验检测集团有限公司 | Concrete precast slab strength detection equipment for building construction |
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| CN115219334B (en) * | 2022-09-19 | 2022-11-29 | 江苏瑞特钢化玻璃制品有限公司 | Refrigerator baffle toughened glass pressure-bearing strength testing arrangement |
| CN116242598A (en) * | 2023-03-16 | 2023-06-09 | 刘俊伟 | Method for detecting strength of steel structure building member |
| CN116242598B (en) * | 2023-03-16 | 2023-10-10 | 新疆鸿猷建设工程集团有限公司 | Method for detecting strength of steel structure building member |
| CN116337653A (en) * | 2023-03-27 | 2023-06-27 | 扬州华正建筑工程质量检测有限公司 | Concrete prefab intensity detection device for building engineering |
| CN116337653B (en) * | 2023-03-27 | 2023-11-03 | 扬州华正建筑工程质量检测有限公司 | Concrete prefab intensity detection device for building engineering |
| CN117825035A (en) * | 2024-03-04 | 2024-04-05 | 昆明易安飞科技有限责任公司 | Linear displacement loading testing device for aviation hydraulic component |
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