CN104390843A - Joint test device of wood material connecting structure - Google Patents
Joint test device of wood material connecting structure Download PDFInfo
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- CN104390843A CN104390843A CN201410635449.5A CN201410635449A CN104390843A CN 104390843 A CN104390843 A CN 104390843A CN 201410635449 A CN201410635449 A CN 201410635449A CN 104390843 A CN104390843 A CN 104390843A
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- clamping plate
- upper chuck
- plate
- top board
- base plate
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Abstract
The invention discloses a joint test device of a wood material connecting structure. The joint test device comprises an adjustable open-mouth tongs table, a pressing head, a compressing bolt, a lower chuck, an upper chuck ejector plate, an upper chuck, a fixed clamping plate, a movable clamping plate and a tightening bolt. The compressing bolt is connected with the pressing head to drive the pressing head to compress a test piece; the lower chuck is connected with the bottom of the adjustable open-mouth tongs table; the fixed clamping plate is installed on the upper chuck ejector plate and extends downwards; the movable clamping plate and the fixed clamping plate are oppositely arranged on the upper chuck ejector plate, the movable clamping plate can move relative to the fixed clamping plate, and the movable clamping plate and the fixed clamping plate are used for clamping a sandwich plate of the test piece; the tightening bolt is used for penetrating through the fixed clamping plate and the movable clamping plate, so that the fixed clamping plate and the movable clamping plate can clamp the sandwich plate. The joint test device of the wood material connecting structure is applicable to different wood sandwich plates in different thickness and different sizes. A great clamping force can be provided, and a monotonic loading and short-period reciprocating loading test can be carried out for a nail joint.
Description
Technical field
The present invention relates to a kind of test unit, relate to the fixture of the nail connected node test for light-duty wooden clamping plate wood shear wall be matched on mechanics machine particularly.
Background technology
The body of wall of clamping plate wood shear wall system (MIDPLY) is arranged formed (being followed successively by lining-wall column-filled board-wall column-Side fascia) by double-deck wall column, three layers of wooden boards.Compared to light-duty wooden shear wall in the past, the properties of clamping plate wood shear wall structure has greatly improved.
Nail connected node performance is extremely important for light-duty wooden, by the test of node, analyzes its intensity size, can not only save material, and is of great significance the bulk strength analysis tool of body of wall.Meanwhile, following closely connected node test parameters is also carry out requisite data in finite element analysis process to body of wall.In nail connected node test in correlation technique, general is all the test basic nail type of attachment of light-duty wooden being carried out to nodal force, and the nail Joints of clamping plate wood shear wall structure is seldom carried out, especially not for the nail joint testing device of clamping plate wood shear wall structure.In addition, because the intensity of following closely node is very large, can not clamping test pieces preferably according to general nail connection node test, before destruction of a node, easily cause filled board (conventional scale board and oriented wood chipboard) and fixture junction premature degradation, can not go out follow closely the power-displacement parameter of connected node by Validity Test.
Summary of the invention
The present invention is intended to solve one of technical matters in correlation technique at least to a certain extent.For this reason, the present invention proposes a kind ofly to be matched on mechanics machine, can be suitable for the test fixture of different specification size test specimen for test fixture board wood shear wall nail connected node characterisitic parameter.
According to the joint testing device of the wood materials syndeton of the embodiment of the present invention, comprising: adjustable openings pincers platform, pressure head, hold-down bolt, lower dop, upper chuck top board, upper chuck, clamp plate, removable clamping plate and fastening bolt.There is in described adjustable openings pincers platform the container cavity for holding test specimen; Described pressure head is located in described container cavity; Being connected with described pressure head in the threaded hole that described hold-down bolt is engaged on the roof of described container cavity, compressing described test specimen for driving described pressure head; The bottom that described lower dop and described adjustable openings clamp platform is connected; Described upper chuck top board is positioned at above described adjustable openings pincers platform; Described upper chuck is located on described upper chuck top board; Gu described strap to be arranged on described upper chuck top board and to downward-extension; Described removable clamping plate and described strap to be relatively located on described upper chuck top board and removable relative to described strap, for clamping the filled board of described test specimen with described strap; Described fastening bolt is used for through described strap and described removable clamping plate, clamps described filled board for making described strap and described removable clamping plate.
According to the joint testing device of wood materials syndeton of the present invention, adapt to different wooden thickness of sandwich panel, different size material size.And provide stronger holding force, dullness can be carried out to nail node and load and low cyclic loading test.
According to one embodiment of present invention, the joint testing device of wood materials syndeton also comprises lower dop base plate, it is adjustable with the openings of sizes changing described adjustable openings pincers platform that described adjustable openings pincers platform is located on described lower dop base plate and described adjustable openings pincers platform position on described lower dop base plate, and described lower dop is connected with described lower dop base plate.
According to one embodiment of present invention, the joint testing device of wood materials syndeton also comprises supporting plate and screw rod, and described screw rod connects described supporting plate and described upper chuck top board, and described supporting plate has the groove for stretching out described filled board.
According to one embodiment of present invention, described lower dop base plate is provided with base plate chute, and described adjustable openings pincers platform is adjustably located on described lower dop base plate by the bolt position through described base plate chute.
According to one embodiment of present invention, described upper chuck top board is provided with top board chute, and described removable clamping plate are engaged in described top board chute slidably.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the joint testing device of wood materials syndeton according to the embodiment of the present invention.
Fig. 2 is the left view of the joint testing device of the syndeton of wood materials shown in Fig. 1.
Fig. 3 is the schematic diagram of the upper chuck top board of the joint testing device of wood materials syndeton according to the embodiment of the present invention.
Fig. 4 is the schematic diagram of the removable clamping plate of the joint testing device of wood materials syndeton according to the embodiment of the present invention.
Fig. 5 is the schematic diagram of the supporting plate of the joint testing device of wood materials syndeton according to the embodiment of the present invention.
Fig. 6 is the vertical view of supporting plate shown in Fig. 5.
Fig. 7 is the schematic diagram of the lower dop base plate of the joint testing device of wood materials syndeton according to the embodiment of the present invention.
Reference numeral: fixture 100, upper chuck 1, upper chuck top board 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 base plate 11, detachable bolt 12, lower dop 13, filled board 14, test specimen 15, base plate chute 1101, top board chute 201.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Describe the joint testing device 100 of the wood materials syndeton of the embodiment of the present invention with reference to the accompanying drawings in detail.
As depicted in figs. 1 and 2, according to the joint testing device 100 of wood materials syndeton of the present invention, comprising: adjustable openings pincers platform 8, pressure head 7, hold-down bolt 6, lower dop 13, upper chuck top board 2, upper chuck 1, strap 5, removable clamping plate 4 and fastening bolt 3.
Specifically, there is in adjustable openings pincers platform 8 container cavity for holding test specimen.Pressure head 7 is located in container cavity, can clamp platform 8 coordinate and compress test specimen by pressure head 7 and adjustable openings.Be connected with pressure head 7 in the threaded hole that hold-down bolt 6 is engaged on the roof of container cavity, compress test specimen for drive ram 7, can drive ram 7 be moved by hold-down bolt 6, thus realization is compressed by pressure head or unclamps the object of test specimen.The bottom that lower dop 13 and adjustable openings clamp platform 8 is connected.Upper chuck top board 2 is positioned at above adjustable openings pincers platform 8.Upper chuck 1 is located on upper chuck top board 2.Strap 5 is arranged on upper chuck top board 2, and strap 5 is to downward-extension.Removable clamping plate 4 are relatively located on upper chuck top board 2 with strap 5, and removable clamping plate 4 are removable relative to strap 5, for the filled board 14 with strap 5 clamping test pieces.Fastening bolt 3, for through strap 5 and removable clamping plate 4, clamps filled board 14 for making strap 5 and removable clamping plate 4.
According to the joint testing device 100 of wood materials syndeton of the present invention, adapt to different wooden thickness of sandwich panel, different size material size.And provide stronger holding force, dullness can be carried out to nail node and load and low cyclic loading test.
As depicted in figs. 1 and 2, in some embodiments of the invention, the joint testing device 100 of wood materials syndeton also comprises lower dop base plate 11, it is adjustable with the openings of sizes changing adjustable openings pincers platform 8 that adjustable openings pincers platform 8 is located on lower dop base plate 11 and adjustable openings pincers platform 8 position on lower dop base plate 11, and lower dop 13 is connected with lower dop base plate 11.
Further, as depicted in figs. 1 and 2, the joint testing device 100 of wood materials syndeton also comprises supporting plate 10 and screw rod 9, and screw rod 9 connects supporting plate 10 and upper chuck top board 2, and supporting plate 10 has the groove for stretching out filled board 14.
As shown in Figure 7, lower dop base plate 11 is provided with base plate chute 1101, and adjustable openings pincers platform 8 is adjustably located on lower dop base plate 11 by the bolt position through base plate chute 1101.
As shown in Figure 3, upper chuck top board 2 is provided with top board chute 201, and removable clamping plate 4 are engaged in top board chute 201 slidably.
The object of the invention is that design one can be matched on mechanics machine, for testing light-duty wooden clamping plate wood shear wall nail connected node characterisitic parameter, can be suitable for the test fixture of different specification size test specimen.
Apparatus of the present invention comprise upper chuck, the clamping plate be fixedly connected with upper chuck, the detachable slidingtype clamping plate corresponding with these clamping plate, and these two clamping plate are connected by detachable bolt, the bottom bracket be connected with upper plate by two elongated screw rods; Below fixture is the pincers platform of adjustable openings of sizes, is fixed on base plate by four bolts, and freely can adjust the spacing between two pincers platforms, be lower loading head below base plate.
When the order nail joint adopting different-thickness OSB plate or scale board and dimension stock according to dimension stock-filled board-dimension stock, with four groups of bolts through filled board and two clamping plate, three is fixed, dimension stock adopts two groups to clamp platform and clamps, by adjusting the spacing between two pincers platforms, adapt to the filled board of different-thickness.And prop up edge under filled board with supporting plate, by two elongated screw rods, 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 tension test, measure the parameter at nail connected node place.
When test specimen adopt be the dimension stock of different size time, this type of change can be adapted to by adjustment pincers platform openings of sizes, with four groups of bolts through filled board and two clamping plate, three is fixed, and prop up edge under filled board with supporting plate, by two elongated screw rods, 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 tension test, measure the parameter at nail connected node place.
In order to strengthen the holding force of fixture to plate, spy devises supporting plate, wraps up bottom filled board, makes filled board entirety stressed, to prevent the premature degradation of filled board.
The present invention can follow closely Joints by applied code wood shear wall, is also applicable to a kind of nail Joints of sandwich wood shear wall (MIDPLY) of special tectonic.Comprise upper chuck, and the clamping plate be fixedly connected with upper chuck, the detachable slidingtype clamping plate corresponding with these clamping plate, these two clamping plate are connected by detachable bolt, the bottom bracket be connected with upper plate by two elongated screw rods; Below fixture is the pincers platform of adjustable openings of sizes, is fixed on base plate by four groups of bolts, and freely can adjust the spacing between two pincers platforms, be lower dop below base plate.The present invention's design conveniently can carry out clamping plate wood shear wall nail Joints, adapts to different wooden thickness of sandwich panel, different size material size.And provide stronger holding force, dullness can be carried out to nail node and load and low cyclic loading test.
As shown in Figure 1, 2, form primarily of upper chuck 1, dop top board 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 base plate 11, two groups of detachable bolts 12, lower dops 13.
Upper chuck 1 and lower dop 13 all have lateral connection hole, and hole dimension is connected with mechanics machine and agrees with mutually.
Top and the upper chuck top board 2 of removable clamping plate 4 block, and at upper chuck top board 2, there is draw-in groove at place, and removable clamping plate 4 according to the thickness of therebetween core 14, can horizontally slip and regulate.Strap 5 is welded in upper chuck top board 2, holes in filled board 14 and clamping plate perforate relevant position, by fastening bolt 3 successively through removable clamping plate 4, filled board 14 and strap 5, and tightens.
As shown in Figure 3,4, upper chuck top board 2 has L-type groove (i.e. top board chute 201), and slidably clamping plate 4 are through this groove, block upper chuck top board 2.
Test specimen is placed in the middle of pincers decometer head, rotatably compresses bolt 6 and promote pressure head 7 and move, test specimen 15 is clamped.
Adjustable openings pincers platform 8 is connected with lower dop base plate 11 by hinged bolt 12, and lower dop base plate 11 has elongated groove, and adjustable openings clamps platform 8 can movement accordingly, to adapt to the filled board 14 of different-thickness.
Wherein one end is through upper chuck top board 2 for elongated screw rod 9, and one end is through supporting plate 10 in addition, and uses nut to tighten.Wherein filled board 14 held by supporting plate 10.
As shown in Figure 5,6, supporting plate 10 configured intermediate is fluted, to adapt to filled board 14, makes it keep plumbness.
Lower dop base plate 11 is fixed together by welding with lower dop 13.
As shown in Figure 7, lower dop base plate 11 is configured with base plate chute 1101, and adjustable openings pincers platform 8 can adjust position according to this, then fixes 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 motionless, by the filled board 14 be connected with upper chuck 1 that stretches, make filled board 14 and the nail continuous damage of test specimen 15, obtain the parameter of corresponding clamping plate wood shear wall nail connected node.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this instructions or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (5)
1. a joint testing device for wood materials syndeton, is characterized in that, comprising:
Adjustable openings pincers platform, has the container cavity for holding test specimen in described adjustable openings pincers platform;
Pressure head, described pressure head is located in described container cavity;
Hold-down bolt, being connected with described pressure head in the threaded hole that described hold-down bolt is engaged on the roof of described container cavity, compressing described test specimen for driving described pressure head;
Lower dop, the bottom that described lower dop and described adjustable openings clamp platform is connected;
Upper chuck top board, described upper chuck top board is positioned at above described adjustable openings pincers platform;
Upper chuck, described upper chuck is located on described upper chuck top board;
Strap, described strap to be arranged on described upper chuck top board and to downward-extension;
Removable clamping plate, described removable clamping plate and described strap to be relatively located on described upper chuck top board and removable relative to described strap, for clamping the filled board of described test specimen with described strap;
Fastening bolt, described fastening bolt is used for through described strap and described removable clamping plate, clamps described filled board for making described strap and described removable clamping plate.
2. the joint testing device of wood materials syndeton according to claim 1, it is characterized in that, also comprise lower dop base plate, it is adjustable with the openings of sizes changing described adjustable openings pincers platform that described adjustable openings pincers platform is located on described lower dop base plate and described adjustable openings pincers platform position on described lower dop base plate, and described lower dop is connected with described lower dop base plate.
3. the joint testing device of wood materials syndeton according to claim 2, is characterized in that, also comprises supporting plate and screw rod, and described screw rod connects described supporting plate and described upper chuck top board, and described supporting plate has the groove for stretching out described filled board.
4. the joint testing device of wood materials syndeton according to claim 2, it is characterized in that, described lower dop base plate is provided with base plate chute, and described adjustable openings pincers platform is adjustably located on described lower dop base plate by the bolt position through described base plate chute.
5. the joint testing device of wood materials syndeton according to claim 1, is characterized in that, described upper chuck top board is provided with top board chute, and described removable clamping plate are engaged in described top board chute slidably.
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 |
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| CN104390843A true CN104390843A (en) | 2015-03-04 |
| CN104390843B CN104390843B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410635449.5A Active CN104390843B (en) | 2014-11-05 | 2014-11-05 | The joint testing device of wood materials attachment structure |
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Cited By (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 |
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| 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 |
| CN102680319A (en) * | 2012-05-23 | 2012-09-19 | 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
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3954005A (en) * | 1974-03-20 | 1976-05-04 | Ccl Systems Limited | Proof 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 |
| CN102680319A (en) * | 2012-05-23 | 2012-09-19 | 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 |
Non-Patent Citations (2)
| Title |
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| 张峰等: "国内外若干面板钉节点试验简介", 《结构工程师》 * |
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Cited By (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 |
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| CN104390843B (en) | 2017-08-25 |
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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 |