CN219915136U - Bench for light steel keel residual deformation and deflection test - Google Patents
Bench for light steel keel residual deformation and deflection test Download PDFInfo
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- CN219915136U CN219915136U CN202320853328.2U CN202320853328U CN219915136U CN 219915136 U CN219915136 U CN 219915136U CN 202320853328 U CN202320853328 U CN 202320853328U CN 219915136 U CN219915136 U CN 219915136U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 47
- 239000010959 steel Substances 0.000 title claims abstract description 47
- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000004891 communication Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
The utility model discloses a bench for light steel joist residual deformation and deflection test, comprising a first layer of rack and a second layer of rack fixed above the first layer of rack; the first layer frame comprises a first longitudinal supporting rod, a first transverse supporting rod and a first adjustable supporting rod, wherein the first transverse supporting rod and the first adjustable supporting rod are respectively provided with a first hoisting hole and a second hoisting hole which are arranged in pairs, and the distance between the first hoisting holes is larger than that between the second hoisting holes; the second layer frame comprises a second longitudinal supporting rod and a second adjustable supporting rod, an electric winch is arranged on the second adjustable supporting rod, and the electric winch is connected with a dynamometer through a rope. The bench is used for solving the problems of inaccurate test results, complicated process, high working strength, low efficiency and the like in the residual deformation and deflection test of the light steel joist.
Description
Technical Field
The utility model relates to the technical field of light steel joist performance detection, in particular to a bench for light steel joist residual deformation and deflection tests.
Background
The light steel joist is a metal skeleton for building which is made up by using high-quality continuous hot-dip galvanized sheet strip as raw material and adopting cold bending process to roll, and can be extensively used in the course of decoration and finishing, and can be mainly used for making non-bearing wall body and building roof by combining with light sheet materials of paper plasterboard and decorative plasterboard, etc.. The light steel joist can be stressed to generate deformation in the use process and influence the normal use state. According to the related specification of the standard 'light steel joist for building' GB/T11981-2008, the mechanical property of the light steel joist is required to be detected, and the residual deformation and deflection after static load action are important detection items of the light steel joist, which reflect the uniformity of the joist in the stress process and directly influence the safety problem of the joist.
At present, a unified and simple test bench for detecting the residual deformation and the deflection of the light steel joist is not available, and inaccurate measurement results can be caused by complex equipment structure, inconvenient operation, non-standardization and the like in the test process; in addition, the existing test equipment also needs manual loading during the static load test of the light steel joist, has large working strength and low efficiency, and is easy to generate human errors.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a bench for the light steel joist residual deformation and deflection test, which is used for solving the problems of inaccurate test results, complicated process, high working strength, low efficiency and the like in the light steel joist residual deformation and deflection test.
The utility model adopts the following technical scheme:
a bench for light steel joist residual deformation and deflection test comprises a first layer of frame and a second layer of frame fixed above the first layer of frame;
the first layer frame comprises a first longitudinal support rod, a first transverse support rod and a first adjustable support rod, wherein two first longitudinal support rods are arranged in parallel, two first transverse support rods are arranged, the two first transverse support rods are respectively fixed at two ends of the first longitudinal support rod and are parallel to the first adjustable support rod, two ends of the first adjustable support rod are connected with the first longitudinal support rod and can adjust positions along the first longitudinal support rod, the first transverse support rod and the first adjustable support rod are provided with a first hoisting hole and a second hoisting hole, the first hoisting hole and the second hoisting hole are arranged in pairs, and the distance between the first hoisting holes is larger than that between the second hoisting holes;
the second layer frame comprises second longitudinal support rods and second adjustable support rods, the second longitudinal support rods are provided with two support rods and are parallel to the first longitudinal support rods, two ends of each second adjustable support rod are connected with the second longitudinal support rods and can adjust positions along the second longitudinal support rods, an electric winch is mounted on each second adjustable support rod, and the electric winch is connected with a dynamometer through a rope.
Further, the second lifting hole is located in an area between the first lifting hole and the first lifting hole.
Further, a rope hole is formed in the second adjustable supporting rod, one end of the rope is connected with the electric winch, and the other end of the rope penetrates through the rope hole and then is connected with the dynamometer.
Further, the second layer frame further comprises second transverse supporting rods, two second transverse supporting rods are arranged and are respectively fixed at two ends of the second longitudinal supporting rods and are parallel to the second adjustable supporting rods, and the second adjustable supporting rods are parallel to the first adjustable supporting rods.
Further, the rack is further provided with a plurality of corner frame components, each corner frame component comprises a right-angle frame, bolts and nuts, each right-angle frame comprises two connecting plates which are perpendicular to each other, and the connecting plates are provided with connecting holes.
Further, the side of the first longitudinal support rod and the side of the first adjustable support rod are both provided with T-shaped guide grooves, the first longitudinal support rod is connected with the first adjustable support rod through an angle frame assembly, in the angle frame assembly, the head of a bolt is arranged in the T-shaped guide grooves, and the tail end of the bolt passes through the connecting hole and then is connected with a nut.
Further, the T-shaped guide grooves on the side surfaces of the first longitudinal support rods are arranged in pairs, and the T-shaped guide grooves on the side surfaces of the first adjustable support rods are arranged in pairs.
Further, the side of the second longitudinal support rod and the side of the second adjustable support rod are both provided with T-shaped guide grooves, the second longitudinal support rod is connected with the second adjustable support rod through an angle frame assembly, in the angle frame assembly, the head of a bolt is arranged in the T-shaped guide grooves, and the tail end of the bolt passes through the connecting hole and then is connected with a nut.
Further, the T-shaped guide grooves on the side surfaces of the second longitudinal support rods are arranged in pairs, and the T-shaped guide grooves on the side surfaces of the second adjustable support rods are arranged in pairs.
Further, the rack also comprises a controller, and the electric winch and the dynamometer are respectively in communication connection with the controller.
Compared with the prior art, the utility model has the beneficial effects that:
the rack for the light steel keel residual deformation and deflection test provided by the utility model has the advantages that the first transverse supporting rods and the first adjustable supporting rods are provided with the first hoisting holes and the second hoisting holes which are arranged in pairs, the distance between the first hoisting holes is larger than that between the second hoisting holes, and the positions of the first adjustable supporting rods can be adjusted; because the light steel keels are tested in pairs, and the same light steel keels are hoisted through a pair of hoisting rods, a single hoisting rod can be arranged on a rack through a single first hoisting hole or a single second hoisting hole; therefore, the bench not only can adjust the distance between the light steel keels (only two keel distances are actually needed according to the test requirements), but also can adjust the distance between the suspenders (only two suspender distances are actually needed according to the test requirements), and can meet the test requirements of the light steel keels with different sizes;
after two light steel keels are hoisted (parallel arrangement), a base plate is paved on the light steel keels, the position of a second adjustable supporting rod is adjusted, then a load (such as a loading block, a sand bag and the like) for loading is connected to a testing head of a dynamometer, an upward traction force can be provided for the load through an electric winch, the load can be lifted or lowered, and when the load is placed on the base plate, the acting force of the load on the base plate can be adjusted through the electric winch, and the acting force is equal to the gravity of the load per se minus the tension force exerted by the dynamometer (the tension force is measured by the dynamometer);
from the above, the bench can meet the test requirements of light steel keels with different sizes and models, and is provided with an electric winch and a dynamometer, so that the bench is used for replacing manual loading and reducing human errors; therefore, the rack can be used for solving the problems of inaccurate test results, complex process, high working strength, low efficiency and the like in the residual deformation and deflection test of the light steel joist.
Drawings
FIG. 1 is a schematic diagram of a structure of a bench for a light steel joist residual deformation and deflection test according to an embodiment of the utility model;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic view of a first adjustable support bar of the stand of FIG. 1;
FIG. 4 is a schematic view of a boom to which the gantry of FIG. 1 is mounted;
fig. 5 is a schematic diagram of the operation of the gantry of fig. 1.
In the figure: 1. a first layer frame; 11. a first longitudinal support bar; 12. a first transverse support bar; 13. a first adjustable support bar; 14. a first lifting hole; 15. a second lifting hole; 2. a second layer of shelves; 21. a second longitudinal support bar; 22. a second transverse support bar; 23. a second adjustable support bar; 24. an electric hoist; 25. a rope; 26. a load cell; 27. a loader; 3. a corner bracket assembly; 31. a right angle frame; 32. a connecting plate; 33. a connection hole; 34. a bolt; 35. a nut; 36. a T-shaped guide slot; 4. a controller; 5. a light steel keel; 6. a boom; 61. a hanging hook; 62. a stud; 63. and (5) limiting the nut.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
Referring to fig. 1-4, an embodiment of the present utility model provides a stand for a light gauge steel residual deformation and deflection test. The rack comprises a first layer rack 1 and a second layer rack 2 fixed above the first layer rack 1; the first layer frame 1 comprises a first longitudinal support rod 11, a first transverse support rod 12 and a first adjustable support rod 13, wherein two first longitudinal support rods 11 are arranged in parallel, two first transverse support rods 12 are arranged, the two first transverse support rods 12 are respectively fixed at two ends of the first longitudinal support rod 11 and are parallel to the first adjustable support rod 13, two ends of the first adjustable support rod 13 are connected with the first longitudinal support rod 11 and can adjust positions along the first longitudinal support rod 11, the first transverse support rod 12 and the first adjustable support rod 13 are respectively provided with a first hoisting hole 14 and a second hoisting hole 15, the first hoisting holes 14 are arranged in pairs, and the distance between the first hoisting holes 14 is larger than the distance between the second hoisting holes 15; the second layer frame 2 comprises a second longitudinal supporting rod 21 and a second adjustable supporting rod 23, the second longitudinal supporting rod 21 is provided with two and is parallel to the first longitudinal supporting rod 11, two ends of the second adjustable supporting rod 23 are connected with the second longitudinal supporting rod 21 and can adjust the position along the second longitudinal supporting rod 21, an electric winch 24 is arranged on the second adjustable supporting rod 23, and the electric winch 24 is connected with a dynamometer 26 through a rope 25.
Preferably, in the stage of the embodiment of the present utility model, the second lifting hole 15 is located at a region between the first lifting hole 14 and the first lifting hole 14; by the arrangement, the length requirements of the first transverse supporting rod 12 and the first adjustable supporting rod 13 can be reduced as much as possible.
Preferably, in the stand according to the embodiment of the present utility model, a rope hole is formed in the second adjustable support bar 23, one end of the rope 25 is connected to the electric hoist 24, and the other end of the rope 25 is connected to the load cell 26 after passing through the rope hole.
Preferably, in the rack according to the embodiment of the present utility model, the second layer rack 2 further includes two second transverse support rods 22, two second transverse support rods 22 are respectively fixed at two ends of the second longitudinal support rod 21 and parallel to the second adjustable support rods 23, and the second adjustable support rods 23 are parallel to the first adjustable support rods 13.
Preferably, the rack of the embodiment of the utility model further comprises a plurality of corner bracket assemblies 3, each corner bracket assembly 3 comprises a right-angle bracket 31, a bolt 34 and a nut 35, the right-angle bracket 31 comprises two connecting plates 32 which are mutually perpendicular, and the connecting plates 32 are provided with connecting holes 33.
Preferably, in the stand according to the embodiment of the present utility model, the side surface of the first longitudinal support bar 11 and the side surface of the first adjustable support bar 13 are both provided with T-shaped guide grooves 36, the first longitudinal support bar 11 and the first adjustable support bar 13 are connected through the corner bracket assembly 3, and in the corner bracket assembly 3, the head of the bolt 34 is disposed in the T-shaped guide grooves 36, and the tail end of the bolt 34 is connected with the nut 35 after passing through the connection hole 33.
For the first adjustable support bar 13, the position of the first adjustable support bar 13 can be adjusted by slightly unscrewing some of the nuts of its corner bracket assembly 3 so that the first adjustable support bar 13 can slide along the first longitudinal support bar 11, after which the first adjustable support bar 13 can be locked in this position by tightening the nuts of its corner bracket assembly.
Preferably, in the stand according to the embodiment of the present utility model, the T-shaped guide grooves 36 on the side of the first longitudinal support bar 11 are arranged in pairs, and the T-shaped guide grooves 36 on the side of the first adjustable support bar 13 are arranged in pairs.
Preferably, in the stand according to the embodiment of the present utility model, the side of the second longitudinal support bar 21 and the side of the second adjustable support bar 23 are each provided with a T-shaped guide groove 36, the second longitudinal support bar 21 and the second adjustable support bar 23 are connected by the corner bracket assembly 3, and in the corner bracket assembly 3, the head of the bolt 34 is disposed in the T-shaped guide groove 36, and the tail end of the bolt 34 is connected with the nut 35 after passing through the connection hole 33.
For the second adjustable support bar 23, the position of the second adjustable support bar 23 can be adjusted by slightly unscrewing some of the nuts of its corner bracket assembly 3 so that the second adjustable support bar 23 can slide along the second longitudinal support bar 21, after which the second adjustable support bar 23 can be locked in this position by tightening the nuts of its corner bracket assembly.
Preferably, in the stand according to the embodiment of the present utility model, the T-shaped guide grooves 36 on the side of the second longitudinal support bar 21 are arranged in pairs, and the T-shaped guide grooves 36 on the side of the second adjustable support bar 23 are arranged in pairs.
Preferably, the stand of the embodiment of the present utility model further comprises a controller 4, and the electric hoist 24 and the load cell 26 are respectively in communication with the controller 4. The controller 4 is used for reading data of the dynamometer 26 and controlling the travel of the electric hoist 24; the controller 4 should be configured with a touch display screen, or a display and a mouse device, to implement a human-computer interaction function.
The rack provided by the embodiment of the utility model has the following application principle:
1) The first transverse supporting rods 12 and the first adjustable supporting rods 13 are respectively provided with a first lifting hole 14 and a second lifting hole 15, wherein the first lifting holes 14 and the second lifting holes 15 are arranged in pairs, the distance between the first lifting holes 14 is larger than that between the second lifting holes 15, the positions of the first adjustable supporting rods 13 are adjustable, and the arrangement can meet the distance requirements in light steel joist tests of different sizes.
2) Because the light steel keels 5 are tested in pairs, and the same light steel keels 5 are hoisted through a pair of hoisting rods 6, a single hoisting rod 6 can be arranged on a rack through a single first hoisting hole 14 or a single second hoisting hole 15; therefore, the bench not only can adjust the distance between the light steel keels 5 and the light steel keels 5 (only two keel distances are actually needed according to the test requirements), but also can adjust the distance between the suspenders 6 and the suspenders 6 (only two suspender distances are actually needed according to the test requirements), and can meet the test requirements of the light steel keels with different sizes; referring to fig. 5, a conventional hanger bar 6 on the market is composed of a hanger hook 61, a stud 62, a limit nut 63, etc.
3) When the test is that the size is shorter light gauge steel (like some furred ceiling keels), its hoist and mount mode is: selecting a first transverse supporting rod 12 and adjusting the position of a first adjustable supporting rod 13 to adjust the distance between the first transverse supporting rod 12 and the first adjustable supporting rod 13, wherein the step essentially comprises the step of adjusting the distance between the light steel joists, and the step of adjusting the distance between the light steel joists can be stepless, but only two fixed distances are actually needed to meet the test requirement; after the position of the first adjustable supporting rod 13 is adjusted, the suspender 6 and the light steel keels 5 are installed, and the two light steel keels 5 are parallel to the first transverse supporting rod 12 and the first adjustable supporting rod 13.
4) When the test is that the light steel joist of size is longer (like some wall joists), its hoist and mount mode is: selecting a first transverse supporting rod 12 and adjusting the position of a first adjustable supporting rod 13 to adjust the distance between the first transverse supporting rod 12 and the first adjustable supporting rod 13, wherein the step is essentially to adjust the distance between the suspenders, and although the distance between the suspenders can be adjusted steplessly, only two fixed distances are needed in practice to meet the test requirement; after the position of the first adjustable supporting rod 13 is adjusted, the suspender 6 and the light steel keels 5 are installed, and the two light steel keels 5 are perpendicular to the first transverse supporting rod 12 and the first adjustable supporting rod 13.
5) After two light steel keels 5 are hoisted (parallel arrangement), a wooden base plate is paved on the light steel keels 5, after the position of the second adjustable supporting rod 23 is adjusted (basically, the position of the load 27 is adjusted), a load 27 (such as a loading block, a sand bag and the like) for loading is connected to a testing head of the dynamometer 26, an upward traction force can be provided for the load 27 through the electric hoist 24, the lifting or lowering of the load 27 can be realized, and when the load 27 is placed on the wooden base plate, the acting force of the load 27 on the wooden base plate can be adjusted through the electric hoist, and the acting force is equal to the gravity of the load per se minus the tensile force exerted by the dynamometer (the tensile force is measured by the dynamometer).
According to the principle, the bench can meet test requirements of light steel keels with different sizes and models, and is provided with an electric winch and a dynamometer, so that manual loading is replaced, and human errors are reduced; therefore, the rack can be used for solving the problems of inaccurate test results, complex process, high working strength, low efficiency and the like in the residual deformation and deflection test of the light steel joist.
The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.
Claims (10)
1. A rack for light gauge steel residual deformation and deflection test, its characterized in that: comprises a first layer frame and a second layer frame fixed above the first layer frame;
the first layer frame comprises a first longitudinal support rod, a first transverse support rod and a first adjustable support rod, wherein two first longitudinal support rods are arranged in parallel, two first transverse support rods are arranged, the two first transverse support rods are respectively fixed at two ends of the first longitudinal support rod and are parallel to the first adjustable support rod, two ends of the first adjustable support rod are connected with the first longitudinal support rod and can adjust positions along the first longitudinal support rod, the first transverse support rod and the first adjustable support rod are provided with a first hoisting hole and a second hoisting hole, the first hoisting hole and the second hoisting hole are arranged in pairs, and the distance between the first hoisting holes is larger than that between the second hoisting holes;
the second layer frame comprises second longitudinal support rods and second adjustable support rods, the second longitudinal support rods are provided with two support rods and are parallel to the first longitudinal support rods, two ends of each second adjustable support rod are connected with the second longitudinal support rods and can adjust positions along the second longitudinal support rods, an electric winch is mounted on each second adjustable support rod, and the electric winch is connected with a dynamometer through a rope.
2. A gantry as claimed in claim 1, characterized in that: the second lifting hole is located in an area between the first lifting hole and the first lifting hole.
3. A gantry as claimed in claim 1, characterized in that: the second adjustable support rod is provided with a rope hole, one end of the rope is connected with the electric winch, and the other end of the rope penetrates through the rope hole and then is connected with the dynamometer.
4. A gantry as claimed in claim 1, characterized in that: the second layer frame further comprises second transverse supporting rods, the two second transverse supporting rods are respectively fixed at two ends of the second longitudinal supporting rods and are parallel to the second adjustable supporting rods, and the second adjustable supporting rods are parallel to the first adjustable supporting rods.
5. A gantry as claimed in claim 1, characterized in that: the rack is characterized by further comprising a plurality of corner frame assemblies, each corner frame assembly comprises a right-angle frame, bolts and nuts, each right-angle frame comprises two connecting plates which are perpendicular to each other, and connecting holes are formed in the connecting plates.
6. A gantry as claimed in claim 5, wherein: the side of first vertical bracing piece with the side of first adjustable bracing piece all is provided with T type guide slot, first vertical bracing piece with first adjustable bracing piece passes through the angle frame subassembly and is connected, and in this angle frame subassembly, the head of bolt sets up in T type guide slot, and the tail end of bolt passes behind the connecting hole and is connected with the nut.
7. A gantry as claimed in claim 6, wherein: the T-shaped guide grooves on the side surfaces of the first longitudinal support rods are arranged in pairs, and the T-shaped guide grooves on the side surfaces of the first adjustable support rods are arranged in pairs.
8. A gantry as claimed in claim 1, characterized in that: the side of the second longitudinal support rod and the side of the second adjustable support rod are both provided with T-shaped guide grooves, the second longitudinal support rod is connected with the second adjustable support rod through an angle frame assembly, in the angle frame assembly, the head of a bolt is arranged in the T-shaped guide grooves, and the tail end of the bolt is connected with a nut after passing through a connecting hole.
9. A gantry as claimed in claim 8, wherein: the T-shaped guide grooves on the side surfaces of the second longitudinal support rods are arranged in pairs, and the T-shaped guide grooves on the side surfaces of the second adjustable support rods are arranged in pairs.
10. A gantry according to any one of claims 1-9, characterized in that: the rack also comprises a controller, and the electric winch and the dynamometer are respectively in communication connection with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320853328.2U CN219915136U (en) | 2023-04-17 | 2023-04-17 | Bench for light steel keel residual deformation and deflection test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320853328.2U CN219915136U (en) | 2023-04-17 | 2023-04-17 | Bench for light steel keel residual deformation and deflection test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219915136U true CN219915136U (en) | 2023-10-27 |
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ID=88465122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320853328.2U Active CN219915136U (en) | 2023-04-17 | 2023-04-17 | Bench for light steel keel residual deformation and deflection test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219915136U (en) |
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2023
- 2023-04-17 CN CN202320853328.2U patent/CN219915136U/en active Active
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