CN212379207U - Experimental device for be used for CLT board angle steel connecting piece shear behavior test - Google Patents
Experimental device for be used for CLT board angle steel connecting piece shear behavior test Download PDFInfo
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- CN212379207U CN212379207U CN202021895925.4U CN202021895925U CN212379207U CN 212379207 U CN212379207 U CN 212379207U CN 202021895925 U CN202021895925 U CN 202021895925U CN 212379207 U CN212379207 U CN 212379207U
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- 238000012360 testing method Methods 0.000 title claims abstract description 70
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 66
- 239000010959 steel Substances 0.000 title claims abstract description 66
- 238000002474 experimental method Methods 0.000 claims abstract description 49
- 238000010008 shearing Methods 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- 239000002023 wood Substances 0.000 description 1
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Abstract
An experimental device for testing the shearing performance of a CLT plate angle steel connecting piece belongs to the field of mechanical automation. The device comprises an experiment platform, an electric servo loading device, a force sensor, a spherical hinge connecting rod, a front loading plate, a rear loading plate, an angle steel test piece, a CLT plate test piece, two limiting angle steels and the like. The electric servo loading device drives the front loading plate and the rear loading plate to load the CLT plate test piece and the angle steel test piece, and the spherical hinge connecting rod guarantees the unicity of the loading direction through the spherical hinge. One limiting angle steel limits the rotation and the lateral movement of the CLT plate test piece on the horizontal plane, and the other limiting angle steel limits the tilting of the CLT plate on the vertical plane and simultaneously does not generate redundant constraint on the structure due to the existence of the sliding rail. The utility model provides an experimental apparatus installs, dismantles conveniently, the CLT board test piece and the angle steel connecting piece test piece of adaptable different grade type.
Description
Technical Field
The utility model belongs to the mechanical automation field relates to an experimental apparatus for be used for CLT board angle steel connecting piece shear behavior test, can be used to the shear behavior test of CLT board angle steel connecting piece among the civil engineering.
Background
In recent years, cross-laminated wood (CLT) has become a hot spot of research by researchers at home and abroad as a building material with unique performance. In the structure adopting the CLT board, besides the CLT board, angle steel and anti-pulling pieces are used for connecting the CLT board with other structures or other CLT boards, and the connecting pieces and the CLT board work together to bear load. When the whole structure is loaded, the angle steel mainly bears shearing force and the anti-pulling piece mainly bears pulling force. Therefore, the research on the shearing resistance of the CLT plate and the angle steel connecting piece in the co-working process is very important for researching the CLT structure.
The shear performance test of the angle steel connecting piece of the CLT plate is generally carried out by two loading modes: static loading and pseudo-dynamic loading. In any loading mode, the displacement of the angle steel in the non-loading direction needs to be strictly limited.
In order to achieve the purpose of experiment, an experimental device capable of satisfying the free displacement of the test piece in the loading direction and the limited displacement in other directions is needed. The experimental equipment meeting the experimental requirements described in the related documents at present generally has large volume, is inconvenient to install and store, and is difficult to randomly change the displacement boundary conditions of the test piece.
SUMMERY OF THE UTILITY MODEL
For solving above-mentioned experimental apparatus volume great, the installation is inconvenient, the poor scheduling problem of wholeness, the utility model provides an experimental apparatus for CLT board angle steel connecting piece shearing capability test to ask when to CLT board angle steel connecting piece shear force direction loading, can guarantee as required that CLT board test piece does not produce the perk, the skew, rotatory etc. is at the outside displacement of loading direction, can simulate the atress condition of CLT board and angle steel connecting piece under different operating condition, and a whole set of experimental apparatus wholeness is good, be convenient for installation and dismantlement.
In order to achieve the above object, the utility model discloses a technical scheme be:
the utility model provides an experimental apparatus for be used for CLT board angle steel connecting piece shearing property test, including experiment platform 1, connecting plate A2, activity stand 3, bracing 4, splint A5, tight lead screw 6, splint B7, electric servo loading device 8, force sensor 9, ball pivot connecting rod 10, pin 11, reamed hole 12, connecting plate B13, square chest 14, experiment bottom plate 15, preceding loading plate 16, back loading plate 17, loading lead screw 18, angle steel bolt 19, angle steel test piece 20, spacing angle steel A21, spacing bolt 22, spliced pole 23, CLT board test piece 24, experiment roof 25, slide rail 26, slider 27, sliding roof 28, spacing angle steel B29.
Experiment platform 1 be a steel beam that has the bolt hole on other trilateral except bottom surface, connecting plate A2 passes through the bolt fastening on experiment platform 1's top surface, its fixed position can change wantonly. The movable upright post 3 is fixed on the connecting plate A2 through a bolt, and the inclined strut 4 connects the top of the movable upright post 3 with the experiment platform 1 through a bolt. The tail of the electric servo loading device 8 is connected with a clamping plate B7 through a bolt, a clamping plate B7 is connected with a clamping plate A5 through a fastening screw rod 6, and the clamping plate A5 and the clamping plate B7 are clamped on the movable upright post 3, so that the height of the movable upright post is adjustable.
One end of the force sensor 9 is installed at the head of the electric servo loading device 8 through threads, and the other end of the force sensor is connected with the spherical hinge connecting rod 10 through threads. The spherical hinge connecting rod 10 is connected with a hinge hole 12 through a pin 11, and a spherical hinge in the connected spherical hinge connecting rod 10 can translate along the axis of the pin 11 and rotate around the axis of the pin 11.
The connecting plate B13 is fixed on the experiment platform 1 through bolts, and the fixing position can be changed at will. The square box 14 is fixed on the connecting plate B13 through bolts, and the experiment bottom plate 15 is fixed on the square box 14 through bolts. The CLT plate test piece 24 is placed on the experiment bottom plate 15, the angle steel test piece 20 is fixed on the experiment bottom plate 15 through an angle steel bolt 19 and is connected with the CLT plate test piece 24 through nails, and the size, the number and the arrangement mode of the nails are changed according to experiment parameters. The front loading plate 16 is connected with the rear loading plate 17 through the loading screw rod 18 to clamp the CLT plate test piece 24, and is connected with the hinge hole 12 through the bolt, so that the electric servo loading device 8 can apply load to the CLT plate test piece 24 through the front loading plate 16 and the rear loading plate 17.
The limiting angle steel A21 is installed on the experiment bottom plate 15 through the limiting bolt 22, and the CLT plate test piece 24 is clamped by the four pieces of limiting angle steel A21 after installation, so that rotation and lateral movement in the horizontal plane of the CLT plate test piece are limited.
The four connecting columns 23 connect the experiment top plate 25 with the experiment bottom plate 15 through bolts, two slide rails 26 are fixed on the experiment top plate 25 through bolts, and two slide blocks 27 are nested on each slide rail 26. Two sliding top plates 28 are respectively fixed on two pairs of sliding blocks 27 on two sliding rails 26 through bolts and can slide along the sliding rails. And the limiting angle steel B29 is fixed on the sliding top plate 28 through bolts and connected with the CLT plate test piece 24 through nails.
The utility model discloses can drive front loading plate 16 and back loading plate 17 through electric servo loading device 8 and load CLT board test piece 24 and angle steel test piece 20, ball pivot connecting rod 10 has guaranteed the unicity of loading direction through the ball pivot. The limiting angle steel A21 limits the rotation and lateral movement of the CLT plate test piece 24 on the horizontal plane, and the limiting angle steel B29 limits the tilting of the CLT plate on the vertical plane and simultaneously does not generate redundant restriction on the structure due to the existence of the sliding rail. The whole set of experimental equipment is convenient to mount and dismount, and can adapt to CLT plate test pieces and angle steel connecting piece test pieces of different types.
The utility model has the advantages as follows:
the utility model discloses an experimental apparatus can carry out the loading to different CLT board test pieces and different angle steel connecting piece test pieces according to different work condition, and the loading height can be adjusted according to the experiment demand wantonly. And the limiting angle steel A21 and the limiting angle steel B29 are installed as required, so that the displacement of the test piece in the non-loading direction is limited, and various displacement boundary conditions of the experiment are met. The whole set of experimental equipment is convenient to mount and dismount, small in occupied area and convenient to store after being dismounted.
Drawings
Fig. 1 is a front elevation view of the experimental device for testing the shearing performance of the angle steel connecting piece of the CLT plate.
Fig. 2 is a sectional view taken along line a-a in fig. 1.
Fig. 3 is a sectional view taken along line B-B in fig. 1.
Fig. 4 is a sectional view taken along line C-C in fig. 1.
Fig. 5 is a top view of the utility model discloses an experimental apparatus for CLT board angle steel connecting piece shear behavior test.
In the figure: the test platform comprises an experiment platform 1, a connecting plate A2, a movable upright post 3, a diagonal brace 4, a clamping plate A5, a tightly-fixed screw rod 6, a clamping plate B7, an electric servo loading device 8, a force sensor 9, a spherical hinge connecting rod 10, a pin 11, a hinge hole 12, a connecting plate B13, a square box 14, an experiment bottom plate 15, a front loading plate 16, a rear loading plate 17, a loading screw rod 18, an angle steel bolt 19, an angle steel test piece 20, a limiting angle steel A21, a limiting bolt 22, a connecting column 23, a CLT plate test piece 24, an experiment top plate 25, a sliding rail 26, a sliding block 27, a sliding top plate 28 and a limiting angle steel.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
As shown in fig. 1 and 5, the utility model relates to an experimental apparatus for CLT board angle steel connecting piece shearing property test, mainly by experiment platform 1, connecting plate A2, activity stand 3, bracing 4, splint A5, tightly decide lead screw 6, splint B7, electric servo loading device 8, force sensor 9, ball pivot connecting rod 10, pin 11, hinge hole 12, connecting plate B13, square chest 14, experiment bottom plate 15, preceding loading plate 16, back loading plate 17, loading lead screw 18, angle steel bolt 19, angle steel test piece 20, spacing angle steel A21, spacing bolt 22, spliced pole 23, CLT board test piece 24, experiment roof 25, slide rail 26, slider 27, sliding roof 28, spacing angle steel B29 constitutes.
As shown in fig. 1, the experiment platform 1 is a steel beam with bolt holes on three sides except the bottom surface, and the connection plate a2 is fixed on the top surface of the experiment platform 1 through bolts, and the position of the connection plate a2 can be changed along the experiment platform 1. The movable upright 3 is fixed on the connecting plate A2 through bolts. The inclined strut 4 connects the top of the movable upright post 3 with the experiment platform 1 through a bolt, and is used for increasing the rigidity of the movable upright post 3. The tail of the electric servo loading device 8 is connected with a clamping plate B7 through a bolt, a clamping plate B7 is connected with a clamping plate A5 through a fastening screw rod 6, the clamping plate A5 and the clamping plate B7 are clamped on the movable upright post 3, and the clamping height of the two clamping plates can be adjusted along the movable upright post 3.
One end of the force sensor 9 is installed at the head of the electric servo loading device 8 through threads, and the other end of the force sensor is connected with the spherical hinge connecting rod 10 through threads and used for acquiring the load output by the electric servo loading device 8. The spherical hinge connecting rod 10 is connected with the hinge hole 12 through the pin 11, and after connection, a spherical hinge in the spherical hinge connecting rod 10 can translate along the axis of the pin 11 and rotate around the axis of the pin 11, so that the load can only be perpendicular to the axis direction of the pin 11.
The connection plate B13 is fixed on the experiment platform 1 through bolts, and the position of the connection plate B13 can be changed along the experiment platform 1. The square box 14 is fixed to the connection plate B13 by bolts which are screwed into the threads of the test bed plate 15 from the square box 14 from bottom to top and have a length not higher than the upper surface of the test bed plate 15. The CLT plate test piece 24 is connected with the angle steel test piece 20 through nails and then placed on the experiment bottom plate 15, and the size, the number and the arrangement mode of the nails are changed according to experiment parameters. The angle steel test piece 20 is fixed on the experiment bottom plate 15 through an angle steel bolt 19.
The front loading plate 16 is connected with the rear loading plate 17 through the loading screw rod 18 to clamp the CLT plate test piece 24, and is connected with the hinge hole 12 through the bolt, so that the electric servo loading device 8 can apply load to the CLT plate test piece 24 through the front loading plate 16 and the rear loading plate 17. Taking the direction shown in fig. 1 as an example, when the direction of the load applied by the electric servo loading device 8 is leftward, the front loading plate 16 is pressed leftward against the CLT plate test piece 24 to apply a leftward load thereto; when the load direction applied by the electric servo loading device 8 is rightward, the front loading plate 16 pulls the rear loading plate 17 rightward through the loading screw rod 18, and then the rear loading plate 17 abuts against the CLT plate test piece 24 to apply a rightward load to the CLT plate test piece.
The limiting angle steel A21 is installed on the experiment bottom plate 15 through the limiting bolt 22, and the mounted four limiting angle steel A21 clamp the CLT plate test piece 24 to limit rotation and lateral movement in the horizontal plane.
The four connecting columns 23 connect the experiment top plate 25 with the experiment bottom plate 15 through bolts, two slide rails 26 are fixed on the experiment top plate 25 through bolts, and two slide blocks 27 are nested on each slide rail 26. Two sliding top plates 28 are respectively fixed on two pairs of sliding blocks 27 on two sliding rails 26 through bolts and can slide along the sliding rails. And the limiting angle steel B29 is fixed on the sliding top plate 28 through bolts and connected with the CLT plate test piece 24 through nails. When the CLT plate test piece 24 is loaded, tilting can be generated on a vertical surface, rotation or deviation can be generated on a horizontal surface, at the moment, the limit angle steel B29 and the sliding top plate 28 downwards prop against the test piece to prevent the test piece from tilting, the two limit angle steels 29 clamp the test piece to prevent the test piece from rotating or deviating, and meanwhile, because the limit angle steel B29 and the sliding top plate 28 can both move along the sliding rail 26, redundant constraint in the loading direction can not be generated on the structure.
The above-mentioned embodiments only represent the embodiments of the present invention, but can not be understood as the limitation of the scope of the present invention, and it should be noted that, for those skilled in the art, a plurality of variations and improvements can be made without departing from the concept of the present invention, and all of them belong to the protection scope of the present invention.
Claims (1)
1. The experimental device for testing the shearing performance of the CLT plate angle steel connecting piece is characterized by comprising an experimental platform (1), a connecting plate A (2), a movable upright post (3), an inclined strut (4), a clamping plate A (5), a fastening screw rod (6), a clamping plate B (7), an electric servo loading device (8), a force sensor (9), a ball hinge connecting rod (10), a connecting plate B (13), a square box (14), an experimental bottom plate (15), a front loading plate (16), a rear loading plate (17), a loading screw rod (18), an angle steel test piece (20), a limiting angle steel A (21), a connecting column (23), a CLT plate test piece (24), an experimental top plate (25), a sliding rail (26), a sliding block (27), a sliding top plate (28) and a limiting angle steel B (29);
the connecting plate A (2) is fixed on the top surface of the experiment platform (1), and the fixed position of the connecting plate A can be changed at will; the movable upright post (3) is fixed on the connecting plate A (2), and the inclined strut (4) connects the top of the movable upright post (3) with the experiment platform (1); the tail part of the electric servo loading device (8) is connected with a clamping plate B (7), the clamping plate B (7) is connected with a clamping plate A (5) through a fastening screw rod (6), the clamping plate A (5) and the clamping plate B (7) are clamped on the movable upright post (3), and the height of the clamping plate A (5) and the clamping plate B (7) is adjustable;
one end of the force sensor (9) is arranged at the head of the electric servo loading device (8), and the other end of the force sensor is connected with the spherical hinge connecting rod (10); the spherical hinge connecting rod (10) is connected with the hinge hole (12) through a pin (11), and a spherical hinge in the connected spherical hinge connecting rod (10) can translate along the axis of the pin (11) and rotate around the axis of the pin (11);
the connecting plate B (13) is fixed on the experiment platform (1), and the fixed position of the connecting plate B can be changed at will; the square box (14) is fixed on the connecting plate B (13), and the experiment bottom plate (15) is fixed on the square box (14); the CLT plate test piece (24) is placed on the experiment bottom plate (15), the angle steel test piece (20) is fixed on the experiment bottom plate (15) and is connected with the CLT plate test piece (24) through nails, and the size, the number and the arrangement mode of the nails are changed according to experiment parameters; the front loading plate (16) is connected with the rear loading plate (17) through a loading screw rod (18) to clamp a CLT plate test piece (24), and is connected with the reaming hole (12), so that the electric servo loading device (8) can apply load to the CLT plate test piece (24) by driving the front loading plate (16) and the rear loading plate (17);
the limiting angle steel A (21) is arranged on the experiment bottom plate (15), and the CLT plate test piece (24) is clamped by the four mounted limiting angle steel A (21) to limit the rotation and lateral movement in the horizontal plane;
the experiment top plate (25) is connected with the experiment bottom plate (15) through four connecting columns (23), two sliding rails (26) are fixed on the experiment top plate (25), and two sliding blocks (27) are nested on each sliding rail (26); the two sliding top plates (28) are respectively fixed on two pairs of sliding blocks (27) on the two sliding rails (26) and can slide along the sliding rails; and the limiting angle steel B (29) is fixed on the sliding top plate (28) and is connected with the CLT plate test piece (24) through a nail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021895925.4U CN212379207U (en) | 2020-09-03 | 2020-09-03 | Experimental device for be used for CLT board angle steel connecting piece shear behavior test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021895925.4U CN212379207U (en) | 2020-09-03 | 2020-09-03 | Experimental device for be used for CLT board angle steel connecting piece shear behavior test |
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| Publication Number | Publication Date |
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| CN212379207U true CN212379207U (en) | 2021-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021895925.4U Withdrawn - After Issue CN212379207U (en) | 2020-09-03 | 2020-09-03 | Experimental device for be used for CLT board angle steel connecting piece shear behavior test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051161A (en) * | 2020-09-03 | 2020-12-08 | 大连理工大学 | Experimental device for be used for CLT board angle steel connecting piece shear behavior test |
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2020
- 2020-09-03 CN CN202021895925.4U patent/CN212379207U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051161A (en) * | 2020-09-03 | 2020-12-08 | 大连理工大学 | Experimental device for be used for CLT board angle steel connecting piece shear behavior test |
| CN112051161B (en) * | 2020-09-03 | 2024-06-14 | 大连理工大学 | Experimental device for be used for CLT board angle steel connecting piece shear performance test |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210119 Effective date of abandoning: 20240614 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210119 Effective date of abandoning: 20240614 |