CN104390843B - The joint testing device of wood materials attachment structure - Google Patents
The joint testing device of wood materials attachment structure Download PDFInfo
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- CN104390843B CN104390843B CN201410635449.5A CN201410635449A CN104390843B CN 104390843 B CN104390843 B CN 104390843B CN 201410635449 A CN201410635449 A CN 201410635449A CN 104390843 B CN104390843 B CN 104390843B
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Abstract
The invention discloses a kind of joint testing device of wood materials attachment structure, including：Adjustable openings pincers platform, pressure head, hold-down bolt, lower dop, upper chuck top plate, upper chuck, strap, removable clamping plate and fastening bolt.Hold-down bolt is connected with pressure head compresses test specimen for drive ram；The bottom that lower dop clamps platform with adjustable openings is connected；Strap is arranged on upper chuck top plate and extended downwardly；Removable clamping plate is relatively located on upper chuck top plate and removable relative to strap with strap, for the filled board with strap clamping test pieces；Fastening bolt is used for through strap and removable clamping plate, for making strap and removable clamping plate clamp filled board.According to the joint testing device of wood materials attachment structure of the present invention, different wooden thickness of sandwich panel, different size material size are adapted to.And there is provided stronger chucking power, dull loading can be carried out to nail node and low cyclic loading is tested.
Description
Technical field
The present invention relates to a kind of experimental rig, light-duty wooden folder is directed to more particularly to being matched on mechanics machine
The fixture of the nail connecting node experiment of plate wood shear wall.
Background technology
The wall of clamping plate wood shear wall system (MIDPLY) is by double-deck wall column, three layers of wooden boards arrangement into (successively
For lining-wall column-filled board-wall column-Side fascia).Compared to conventional light-duty wooden shear wall, clamping plate wood shearing
The properties of wall construction have greatly improved.
Follow closely connecting node performance extremely important for light-duty wooden, by the experiment of node, analyze its intensity size, no
It is only capable of saving material, and the bulk strength analysis tool of wall is of great significance.Meanwhile, nail connecting node experiment ginseng
Number is also to data essential during wall progress finite element analysis.In nail connecting node experiment in correlation technique,
Basic nail type of attachment typically all to light-duty wooden carries out the experiment of nodal force, and for the wooden shear wall structure of clamping plate
Nail Joints are seldom carried out, particular without the nail joint testing device for the wooden shear wall structure of clamping plate.In addition, because of nail section
The intensity of point is very big, according to general nail connection node test can not preferably clamping test pieces, before destruction of a node, hold
Easily cause filled board (conventional glued board and oriented wood chipboard) and fixture junction premature degradation, it is impossible to which Validity Test goes out nail connection
Power-displacement parameter of node.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, the present invention is carried
Going out one kind can be matched on mechanics machine, follow closely connecting node characterisitic parameter for the wooden shear wall of test fixture board and can be applicable not
The test fixture of same specification size test specimen.
The joint testing device of wood materials attachment structure according to embodiments of the present invention, including：Adjustable openings pincers platform,
Pressure head, hold-down bolt, lower dop, upper chuck top plate, upper chuck, clamp plate, removable clamping plate and fastening bolt.It is described adjustable
There is the accommodating chamber for being used for accommodating test specimen in open mouth tongs platform；The pressure head is located in the accommodating chamber；The hold-down bolt coordinates
It is connected in screwed hole on the roof of the accommodating chamber and with the pressure head, for driving the pressure head to compress the test specimen；
The bottom that the lower dop clamps platform with the adjustable openings is connected；The upper chuck top plate is located at the adjustable openings and clamps platform
Top；The upper chuck is located on the upper chuck top plate；Gu the strap be arranged on the upper chuck top plate on and to
Lower extension；The removable clamping plate is relatively located on the upper chuck top plate and relative to the fixation with the strap
Clamping plate may move, the filled board for clamping the test specimen with the strap；The fastening bolt is used for through described solid
Clamp plate and the removable clamping plate, for making the strap and the removable clamping plate clamp the filled board.
According to the joint testing device of wood materials attachment structure of the present invention, different wooden thickness of sandwich panel, difference are adapted to
Dimension stock size.And there is provided stronger chucking power, dull loading can be carried out to nail node and low cyclic loading is tested.
According to one embodiment of present invention, the joint testing device of wood materials attachment structure also includes lower dop bottom
Plate, the adjustable openings pincers platform is located on the lower dop bottom plate and the adjustable openings clamp platform in the lower dop bottom plate
Upper position is adjustable to change the openings of sizes that the adjustable openings clamp platform, and the lower dop is connected with the lower dop bottom plate.
According to one embodiment of present invention, the joint testing device of wood materials attachment structure also includes supporting plate and spiral shell
Bar, the screw rod connects the supporting plate and the upper chuck top plate, and the supporting plate has the groove for being used for stretching out the filled board.
According to one embodiment of present invention, the lower dop bottom plate is provided with bottom plate chute, the adjustable openings pincers
Platform is adjustably located on the lower dop bottom plate by the bolt position through the bottom plate chute.
According to one embodiment of present invention, the upper chuck top plate is provided with top plate chute, and the removable clamping plate can
It is fitted slidably within the top plate chute.
Brief description of the drawings
Fig. 1 is the schematic diagram of the joint testing device of the wood materials attachment structure according to the embodiment of the present invention.
Fig. 2 is the left view of the joint testing device of wood materials attachment structure shown in Fig. 1.
Fig. 3 is showing for the upper chuck top plate of the joint testing device of the wood materials attachment structure according to the embodiment of the present invention
It is intended to.
Fig. 4 is showing for the removable clamping plate of the joint testing device of the wood materials attachment structure according to the embodiment of the present invention
It is intended to.
Fig. 5 is the schematic diagram of the supporting plate of the joint testing device of the wood materials attachment structure according to the embodiment of the present invention.
Fig. 6 is the top view of supporting plate shown in Fig. 5.
Fig. 7 is showing for the lower dop bottom plate of the joint testing device of the wood materials attachment structure according to the embodiment of the present invention
It is intended to.
Reference：Fixture 100, upper chuck 1, upper chuck top plate 2, fastening bolt 3, removable clamping plate 4, strap 5,
Hold-down bolt 6, pressure head 7, adjustable openings pincers platform 8, screw rod 9, supporting plate 10, lower dop bottom plate 11, detachable bolt 12, lower card
First 13, filled board 14, test specimen 15, bottom plate chute 1101, top plate chute 201.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
The joint testing device 100 of the wood materials attachment structure of the embodiment of the present invention is described in detail with reference to the accompanying drawings.
As depicted in figs. 1 and 2, according to the joint testing device 100 of wood materials attachment structure of the present invention, including：It is adjustable
Save open mouth tongs platform 8, pressure head 7, hold-down bolt 6, lower dop 13, upper chuck top plate 2, upper chuck 1, strap 5, removable clamping plate
4 and fastening bolt 3.
Specifically, there is the accommodating chamber for being used for accommodating test specimen in adjustable openings pincers platform 8.Pressure head 7 is located in accommodating chamber,
Platform 8 can be clamped by pressure head 7 and adjustable openings coordinate compression test specimen.Hold-down bolt 6 coordinates the spiral shell on the roof of accommodating chamber
It is connected in pit and with pressure head 7, compresses test specimen for drive ram 7, can be moved by hold-down bolt 6 with drive ram 7, so that
Realize the purpose that test specimen is compressed or unclamped by pressure head.The bottom that lower dop 13 clamps platform 8 with adjustable openings is connected.Upper chuck top
Plate 2 is located at the top of adjustable openings pincers platform 8.Upper chuck 1 is located on upper chuck top plate 2.Strap 5 is arranged on upper chuck top plate
On 2, and strap 5 is extended downwardly.Removable clamping plate 4 is relatively located on upper chuck top plate 2 with strap 5, and removable
Dynamic clamping plate 4 is removable relative to strap 5, for the filled board 14 with the clamping test pieces of strap 5.Fastening bolt 3 is used for
Through strap 5 and removable clamping plate 4, for making strap 5 and removable clamping plate 4 clamp filled board 14.
According to the joint testing device 100 of wood materials attachment structure of the present invention, different wooden thickness of sandwich panel, no are adapted to
Same specification material size.And there is provided stronger chucking power, dull loading can be carried out to nail node and low cyclic loading is tried
Test.
As depicted in figs. 1 and 2, in some embodiments of the invention, the joint testing device of wood materials attachment structure
100 also include lower dop bottom plate 11, and adjustable openings pincers platform 8 is located on lower dop bottom plate 11 and adjustable openings clamp platform 8 under
The adjustable openings of sizes to change adjustable openings pincers platform 8 in position, lower dop 13 and the lower phase of dop bottom plate 11 on dop bottom plate 11
Even.
Further, as depicted in figs. 1 and 2, the joint testing device 100 of wood materials attachment structure also includes supporting plate 10
With screw rod 9, the connection supporting plate 10 of screw rod 9 and upper chuck top plate 2, supporting plate 10 have the groove for being used for stretching out filled board 14.
As shown in fig. 7, lower dop bottom plate 11 is provided with bottom plate chute 1101, adjustable openings clamp platform 8 by through bottom plate
The bolt position of chute 1101 is adjustably located on lower dop bottom plate 11.
As shown in figure 3, upper chuck top plate 2 is provided with top plate chute 201, removable clamping plate 4 is slidably fit into top plate
In chute 201.
It can be matched on mechanics machine, be cut for testing light-duty wooden clamping plate wood present invention aims at design one kind
Power wall nail connecting node characterisitic parameter, the test fixture of different specification size test specimen can be applicable.
Apparatus of the present invention include upper chuck, the clamping plate being fixedly connected with upper chuck, detachable slip corresponding with the clamping plate
Formula clamping plate, two clamping plate is connected by detachable bolt, the bottom bracket being connected by two elongated screw rods with upper plate；
Lower section fixture is the pincers platform of adjustable openings of sizes, is fixed on by four bolts on bottom plate, can freely adjust two pincers platforms
Between spacing, be lower loading head below bottom plate.
When the order using different-thickness OSB plates or glued board with dimension stock according to dimension stock-filled board-dimension stock is followed closely
When connecing, filled board and two clamping plates are passed through with four groups of bolts, fix three, dimension stock is clamped using two groups of pincers platforms, is passed through
Spacing between two pincers platforms of adjustment, to adapt to the filled board of different-thickness.And filled board lower edge is propped up with supporting plate, pass through two
Elongated screw rod, supporting plate is connected with upper plate, and the dop up and down of fixture and the upper lower chuck of mechanics machine are fixed.By stretching examination
Test, measure the parameter at nail connecting node.
When test specimen uses various sizes of dimension stock, such change is can adapt to by adjusting pincers platform openings of sizes
Change, pass through filled board and two clamping plates with four groups of bolts, fix three, and filled board lower edge is propped up with supporting plate, pass through two
Elongated screw rod, supporting plate is connected with upper plate, and the dop up and down of fixture and the upper lower chuck of mechanics machine are fixed.By stretching examination
Test, measure the parameter at nail connecting node.
In order to strengthen chucking power of the fixture to plate, spy devises supporting plate, and filled board bottom is wrapped up so that filled board is overall
Stress, to prevent the premature degradation of filled board.
The present invention can applied code wood shear wall nail Joints, be also applied for a kind of sandwich wood of special tectonic
The nail Joints of structural shear wall (MIDPLY).Including upper chuck, and the clamping plate being fixedly connected with upper chuck, with the clamping plate pair
The detachable slidingtype clamping plate answered, two clamping plate is connected by detachable bolt, passes through two elongated screw rods and upper plate
Connected bottom bracket；Lower section fixture is the pincers platform of adjustable openings of sizes, is fixed on by four groups of bolts on bottom plate, can be certainly
It is lower dop below spacing between two pincers platforms of adjustment, bottom plate.The present invention is designed to the convenient wooden shear wall of progress clamping plate
Joints are followed closely, different wooden thickness of sandwich panel, different size material size is adapted to.And, can there is provided stronger chucking power
Dull loading and low cyclic loading experiment are carried out to nail node.
As shown in Figure 1, 2, mainly by upper chuck 1, dop top plate 2, fastening bolt 3, removable clamping plate 4, strap 5,
Hold-down bolt 6, pressure head 7, adjustable openings pincers platform 8, two groups of elongated screw rods 9, supporting plate 10, lower dop bottom plate 11, two groups it is detachable
Formula bolt 12, lower dop 13 are constituted.
Upper chuck 1 and lower dop 13 have lateral connection hole, and hole size is connected with mechanics machine mutually agrees with.
The top of removable clamping plate 4 is blocked with upper chuck top plate 2, has neck at upper chuck top plate 2, may move clamping plate 4
Thickness that can be according to middle filled board 14, horizontally slips and is adjusted.Strap 5 is welded in upper chuck top plate 2, sandwich
Plate 14 is drilled with clamping plate perforate relevant position, and fastening bolt 3 is sequentially passed through into removable clamping plate 4, filled board 14 and geometrical clamp
Plate 5, and tighten.
As shown in Figure 3,4, upper chuck top plate 2 has L-type groove (i.e. top plate chute 201), and slidably clamping plate 4 is recessed through this
Groove, blocks upper chuck top plate 2.
Test specimen is placed in the middle of pincers decometer head, bolt 6 is rotatably compressed and promotes pressure head 7 to move, by the clamping of test specimen 15.
Adjustable openings pincers platform 8 is connected by hinged bolt 12 with lower dop bottom plate 11, and lower dop bottom plate 11 has logical
Long groove, adjustable openings pincers platform 8 can be moved accordingly, to adapt to the filled board 14 of different-thickness.
Elongated screw rod 9 wherein one end passes through upper chuck top plate 2, and other end passes through supporting plate 10, and is tightened using nut.Its
Middle supporting plate 10 holds filled board 14.
As shown in Figure 5,6, the configured intermediate of supporting plate 10 is fluted, to adapt to filled board 14, it is kept plumbness.
Lower dop bottom plate 11 is fixed together by welding with lower dop 13.
As shown in fig. 7, lower dop bottom plate 11 is configured with bottom plate chute 1101, adjustable openings pincers platform 8 can be adjusted according to this
Position, then fixed with bolt, to adapt to the filled board 14 of different-thickness.
During test, lower dop 13 is connected to mechanical test motor spindle, and adjustable openings pincers platform 8 is fixed test specimen and kept not
It is dynamic, by stretching the filled board 14 being connected with upper chuck 1 so that the nail continuous damage of filled board 14 and test specimen 15, obtain corresponding
The wooden shear wall of clamping plate follow closely the parameter of connecting node.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate each other；Can be joined directly together, can also be indirectly connected to by intermediary, can be with
It is connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (3)
1. a kind of joint testing device of wood materials attachment structure, it is characterised in that including：
Adjustable openings, which are clamped in platform, the adjustable openings pincers platform, has the accommodating chamber for being used for accommodating test specimen；
Pressure head, the pressure head is located in the accommodating chamber；
Hold-down bolt, the hold-down bolt cooperation is connected in the screwed hole on the roof of the accommodating chamber and with the pressure head,
For driving the pressure head to compress the test specimen；
Lower dop, the bottom that the lower dop clamps platform with the adjustable openings is connected；
Upper chuck top plate, the upper chuck top plate is located above adjustable openings pincers platform；
Upper chuck, the upper chuck is located on the upper chuck top plate；
Strap, the strap is arranged on the upper chuck top plate and extended downwardly；
Removable clamping plate, the removable clamping plate be relatively located on the upper chuck top plate with the strap and relative to
The strap may move, the filled board for clamping the test specimen with the strap；
Fastening bolt, the fastening bolt is used for through the strap and the removable clamping plate, for making the fixation
Clamping plate and the removable clamping plate clamp the filled board,
Supporting plate and screw rod, the screw rod connect the supporting plate and the upper chuck top plate, and the supporting plate, which has, to be used to stretch out described
The groove of filled board,
The upper chuck top plate is provided with top plate chute, and the removable clamping plate is slidably fit into the top plate chute.
2. the joint testing device of wood materials attachment structure according to claim 1, it is characterised in that also including lower card
Head bottom plate, the adjustable openings pincers platform is located on the lower dop bottom plate and the adjustable openings clamp platform in the lower dop
The adjustable openings of sizes to change the adjustable openings pincers platform in position, the lower dop and the lower dop bottom plate phase on bottom plate
Even.
3. the joint testing device of wood materials attachment structure according to claim 1, it is characterised in that the lower dop
Bottom plate is provided with bottom plate chute, and the adjustable openings pincers platform is adjustably located at by the bolt position through the bottom plate chute
On the lower dop bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410635449.5A CN104390843B (en) | 2014-11-05 | 2014-11-05 | The joint testing device of wood materials attachment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410635449.5A CN104390843B (en) | 2014-11-05 | 2014-11-05 | The joint testing device of wood materials attachment structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104390843A CN104390843A (en) | 2015-03-04 |
| CN104390843B true CN104390843B (en) | 2017-08-25 |
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ID=52608774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410635449.5A Active CN104390843B (en) | 2014-11-05 | 2014-11-05 | The joint testing device of wood materials attachment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104390843B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398304A (en) * | 2018-03-23 | 2018-08-14 | 北京林业大学 | A kind of test method of light-duty wooden nail node corrosion resistant performance |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1485822A (en) * | 1974-03-20 | 1977-09-14 | Ccl Systems Ltd | Test loading apparatus for testing rod-like articles |
| US4627293A (en) * | 1985-10-03 | 1986-12-09 | Metriguard, Inc. | Apparatus for tension testing of lumber |
| CN201072380Y (en) * | 2007-09-12 | 2008-06-11 | 扬州大学 | Clamper of nail connection node test fixture |
| CN102680319B (en) * | 2012-05-23 | 2014-06-04 | 青岛科技大学 | Test fixture for compression shear of symmetric sandwich structure |
| CN204269463U (en) * | 2014-11-05 | 2015-04-15 | 北京林业大学 | The joint testing device of wood materials syndeton |
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2014
- 2014-11-05 CN CN201410635449.5A patent/CN104390843B/en active Active
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| CN104390843A (en) | 2015-03-04 |
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Inventor after: Gao Ying Inventor after: Dong Weibo Inventor after: Zhu Wanrong Inventor after: Zhu Xudong Inventor after: Wu Yuxuan Inventor after: Guo Zhaoxia Inventor after: Yuan Tingge Inventor after: Xu Ruo Inventor before: Dong Weibo Inventor before: Gao Ying Inventor before: Zhu Wanrong Inventor before: Zhu Xudong Inventor before: Wu Yuxuan Inventor before: Guo Zhaoxia Inventor before: Yuan Tingge Inventor before: Xu Ruo |
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