CN111965035A - Glass structure connected node slant load loading device - Google Patents
Glass structure connected node slant load loading device Download PDFInfo
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- CN111965035A CN111965035A CN202011002407.XA CN202011002407A CN111965035A CN 111965035 A CN111965035 A CN 111965035A CN 202011002407 A CN202011002407 A CN 202011002407A CN 111965035 A CN111965035 A CN 111965035A
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- 239000011521 glass Substances 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 81
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 238000006243 chemical reaction Methods 0.000 claims description 49
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000001174 ascending effect Effects 0.000 claims 1
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
Abstract
The embodiment of the invention provides a glass structure connecting node oblique load loading device, which comprises: a base; the limiting assembly is arranged on the base and used for forming a fixing groove for fixing a piece to be tested on the base in a matching mode, the piece to be tested is a glass structural piece and is provided with a connecting node for being externally connected with other structural pieces, and an embedded piece is arranged at the connecting node; the testing mechanism is connected with the embedded part and used for applying tension to the embedded part so as to carry out load test on the connecting node, one end of the testing mechanism is detachably connected with the base and can rotate relative to the base so as to adjust the force application angle of the testing mechanism on the embedded part, and the testing mechanism can carry out load test on the connecting node in different angle directions. The oblique loading device for the glass structure connecting node can realize oblique loading at any angle, so that a test piece to be tested can be subjected to load testing at any angle.
Description
Technical Field
The embodiment of the invention relates to the technical field of component load testing, in particular to a glass structure connecting node oblique load loading device.
Background
The structural test is to prevent accidents from generating when external force acts on facilities such as buildings and the like to cause casualties, and to carry out research on structural performance and carry out a large number of tests to verify design theories. The structure test is mainly a test for loading and unloading a test piece by using a loading device and taking the load or displacement value of a structure or a member as a control quantity.
The glass structure connecting node can bear loads at different angles in the use process, when the stress performance of the connecting node is subjected to experimental research, the loads at different angles can be applied by a loading device, and the load angles can not be changed in the loading process. The existing conventional test scheme generally adopts a three-point loading mode, namely one-point drawing and two-point pressing (pressing is mainly used for ensuring the position stability of a test piece), but the loading mode can cause a node area to bear additional stress, the stress distribution rule of the node area is influenced, the stress state of the node area is inconsistent with the engineering reality, the accuracy of a test result is influenced, moreover, the pressing of the test piece can easily cause the test piece to break, when the load is large, the test piece is also easily caused to turn on one side due to uneven stress, meanwhile, the loading mode can not realize multi-angle drawing of the connection node, and the test effect is poor.
Disclosure of Invention
The invention provides a glass structure connecting node oblique load loading device which does not need to press a to-be-tested piece down, ensures the stress distribution rule of the to-be-tested piece, can realize oblique loading at any angle and can carry out load testing on the to-be-tested piece at any angle.
In order to solve the above technical problem, an embodiment of the present invention provides a device for loading an oblique load on a glass structure connection node, including:
a base;
the limiting assembly is arranged on the base and used for forming a fixing groove for fixing a piece to be tested on the base in a matching mode, the piece to be tested is a glass structural piece and is provided with a connecting node for being externally connected with other structural pieces, and an embedded piece is arranged at the connecting node;
the testing mechanism is connected with the embedded part and used for applying tension to the embedded part so as to carry out load test on the connecting node, one end of the testing mechanism is detachably connected with the base and can rotate relative to the base so as to adjust the force application angle of the testing mechanism on the embedded part, and the testing mechanism can carry out load test on the connecting node in different angle directions.
Preferably, the test mechanism comprises:
the loading part is connected with the embedded part;
the sliding rail is arranged on the loading piece and is at least arc-shaped;
the end part of the pull rod is positioned in the slide rail and can move along the slide rail; and
and the traction assembly is provided with two opposite ends, one end of the traction assembly is rotatably connected with the base, and the other end of the traction assembly is connected with the pull rod and is used for applying a pulling force to the pull rod so that the pulling force is sequentially transmitted to the connecting nodes of the slide rail, the loading part, the embedded part and the part to be tested through the pull rod.
Preferably, the pulling assembly comprises:
one end of the counterforce piece is rotatably connected with the base;
and the jack is positioned at the other end of the counter-force piece and is connected with the pull rod, when the jack pushes the pull rod in the direction of pulling the loading piece, the jack and the counter-force piece are mutually abutted and respectively apply counter-acting forces to each other, so that the whole stress of the testing mechanism is balanced, and the relative position of the testing mechanism and the base is ensured to be stable.
Preferably, the reaction members include two reaction members, the two reaction members are arranged oppositely, one ends of the reaction members in the same direction are rotatably connected with the base, the other ends of the reaction members are connected with each other through a reaction connecting member, the to-be-tested member, the loading member and the slide rail are located between the two reaction members, one end of the pull rod penetrates through the reaction connecting member and is connected with the slide rail, the other end of the pull rod is located on the outer side of the reaction connecting member and is connected with the jack, and the jack is abutted to the reaction connecting member.
Preferably, the pull rod is located at the center of the counter force connecting piece, the jack is a hydraulic jack, the hydraulic jack is sleeved outside the pull rod, and a jack top plate of the hydraulic jack is connected with the pull rod.
Preferably, the base is provided with a plurality of connecting ends for connecting with the testing mechanism, and the testing mechanism is connected with the connecting ends at different positions to assist in adjusting the angle direction.
Preferably, the base is detachably provided with a bracket assembly which can ascend or descend relative to the base and is used for supporting and limiting the reaction force piece.
Preferably, the bracket assembly includes a screw rod screwed to the base and a bracket provided at an end of the screw rod facing the reaction member and supporting the reaction member.
Preferably, the limiting assembly includes two first limiting parts arranged at an interval, and a second limiting part for cooperating to clamp two of the first limiting parts at the same time, the second limiting part is detachably connected to the base, and the first limiting part, the second limiting part and the base cooperate to form the fixing groove for clamping the test piece to be tested.
Preferably, the piece to be tested is fixedly connected with the first limiting piece through an adhesive.
Based on the disclosure of the embodiment, the embodiment of the invention has the advantages that the test piece to be tested does not need to be pressed down, the stress distribution rule of the whole test piece to be tested is ensured when the load test is carried out, and the test accuracy is ensured. Meanwhile, the test piece to be tested can be obliquely loaded in any angle direction, so that the test piece to be tested can be subjected to load testing in different angle directions, the real stress state of the connecting node of the test piece to be tested is fully reflected, and the accuracy of the test result is further improved.
Drawings
Fig. 1 is a schematic structural view of a glass structure connection node oblique load loading device in an embodiment of the present invention.
Fig. 2 is a partial structural schematic view of a glass structure connecting node oblique load loading device in the embodiment of the invention.
Reference numerals:
1. a base; 2. a connecting end; 3. a counter-force member; 4. a loading member; 5. a slide rail; 6. a hinge shaft; 7. a counter-force connector; 8. a limiting hole; 9. a jack; 10. a jack top plate; 11. a pull rod; 12. a second limiting member; 13. a first limit piece; 14. fixing the bolt; 15. a bracket; 16. a screw; 17. positioning a nut; 18. a test piece to be tested; 19-Embedded part
Detailed Description
The following detailed description of specific embodiments of the present invention is provided in connection with the accompanying drawings, which are not intended to limit the invention.
It will be understood that various modifications may be made to the embodiments disclosed herein. The following description is, therefore, not to be taken in a limiting sense, but is made merely as an exemplification of embodiments. Other modifications will occur to those skilled in the art within the scope and spirit of the disclosure.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.
These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It should also be understood that, although the invention has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the invention, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely examples of the disclosure that may be embodied in various forms. Well-known and/or repeated functions and structures have not been described in detail so as not to obscure the present disclosure with unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.
The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a device for loading a diagonal load on a glass structure connection node, including:
a base 1;
the limiting assembly is arranged on the base 1 and used for forming a fixing groove for fixing the to-be-tested piece 18 on the base 1 in a matching mode, the to-be-tested piece 18 is a glass structural piece and is provided with a connecting node for externally connecting other structural pieces, and an embedded piece 19 is arranged at the connecting node;
and the testing mechanism is connected with the embedded part 19 and used for applying a pulling force (shown as F in fig. 2) to the embedded part 19 so as to carry out load test on the connecting node, one end of the testing mechanism is detachably connected with the base 1 and can rotate relative to the base 1 so as to adjust the force application angle of the testing mechanism to the embedded part 19, and the testing mechanism can carry out load test on the connecting node in different angle directions.
That is, the to-be-tested part 18 can be fixed through a fixing groove formed by matching the limiting component and the base 1, and the testing mechanism is respectively connected with the embedded part 19 of the to-be-tested part 18 and the base 1 and can rotate relative to the base 1, so that the load loading direction can be adjusted randomly when the to-be-tested part 18 is tested, and the oblique loading at any angle can be realized.
Based on the disclosure of the above embodiment, the embodiment of the present invention has the advantages that the test piece 18 does not need to be pressed down, so that the stress distribution rule of the whole test piece 18 is ensured during the load test, the stress state at the connection node of the test piece 18 is not affected, and the test accuracy is ensured. Meanwhile, the oblique loading of the piece to be tested 18 in any angle direction can be realized, so that the load test of the piece to be tested 18 in different angle directions can be realized, the real stress state of the connecting node of the piece to be tested 18 can be fully reflected, and the accuracy of the test result can be further improved.
Specifically, the base 1 in this embodiment includes a first portion connected to the testing mechanism and a second portion connected to the limiting assembly, and the first portion and the second portion are connected to form an L-shape, wherein the first portion has a height higher than that of the second portion, which is equivalent to a vertical section of the L, and the second portion is equivalent to a horizontal section of the L. Of course, the specific structure is not exclusive, and the base 1 structure adopted in the present embodiment is only one of the structures of the plurality of bases 1, and is not used as any limitation.
Further, with reference to fig. 1, the limiting assembly includes two first limiting members 13 disposed at an interval, and a second limiting member 12 for engaging and clamping the two first limiting members 13 at the same time, that is, the two second limiting members 12 in each pair of second limiting members 12 are respectively located at the outer sides of the two first limiting members 13, so as to engage and clamp the first limiting members 13, and prevent the two first limiting members 13 from tilting reversely. The second limiting member 12 is detachably connected to the base 1, and the first limiting member 13, the second limiting member 12 and the base 1 cooperate to form a fixing groove for clamping the test object 18.
Specifically, the first limiting member 13 in this embodiment is a steel plate, the second limiting member 12 is an angle steel, the second limiting member 12 is fixed on the first portion of the base 1 by the fixing bolt 14, and the to-be-tested device 18 is located in the fixing groove and is clamped by the two first limiting members 13. In order to ensure that the testing position of the piece to be tested 18 is more stable in the testing process, the piece to be tested cannot rotate under the action of a load loaded obliquely, for example, the piece to be tested rotates around the vertex angle of the piece to be tested 18, and meanwhile, the piece to be tested 18 is ensured not to crack locally due to stress concentration.
Further, with continued reference to fig. 1, the testing mechanism includes:
a loading part 4 connected with the embedded part 19;
the slide rail 5 is arranged on the loading piece 4, and the slide rail 5 is at least arc-shaped;
a pull rod 11, the end of which is positioned in the slide rail 5 and can move along the slide rail 5; and
and the drawing assembly is provided with two opposite ends, one end of the drawing assembly is rotatably connected with the base 1, and the other end of the drawing assembly is connected with the pull rod 11 and is used for applying a pulling force to the pull rod 11 so that the pulling force is sequentially transmitted to the connecting nodes of the slide rail 5, the loading part 4, the embedded part 19 and the part to be tested 18 through the pull rod 11.
The loading member 4 in this embodiment is connected to the embedment member 19 by bolts. The slide rails 5 are formed by partially recessing the loading member 4, but it is also possible to separately provide the slide rails 5 and firmly fix the slide rails 5 to the loading member 4. A hinge shaft 6 is arranged in the slide rail 5 in a sliding way, and one end of a pull rod 11 is connected with the slide rail 5 in a sliding way through the hinge shaft 6.
Further, the pulling assembly comprises:
one end of the counterforce piece 3 is rotationally connected with the base 1;
the jack 9 is positioned at the other end of the counter-force piece 3 and connected with the pull rod 11, when the jack 9 pushes the pull rod 11 in the direction of pulling the loading piece 4, the jack 9 and the counter-force piece 3 are abutted against each other and respectively apply counter-acting forces to each other, namely, the counter-acting forces are applied in the same magnitude and opposite directions, so that the whole stress of the testing mechanism is balanced, the testing mechanism is ensured not to generate displacement due to component force in a certain direction, the relative position of the testing mechanism and the base 1 is stable, and the angular direction of load loading is stable.
Specifically, the reaction member 3 in this embodiment is a reaction plate, the reaction member 3 includes two reaction members 3, the two reaction members 3 are disposed opposite to each other, one end of the reaction member in the same direction is rotatably connected to the base 1, and the other end of the reaction member is connected to the other end of the reaction member by a reaction connecting member 7, which may specifically be a reaction connecting plate. Wherein, the examination spare 18, loading 4, slide rail 5 are located between two reaction 3, and the one end of pull rod 11 passes the avoiding pull rod 11 atress of seting up on the reaction connecting piece 7 and rocks, and the spacing hole 8 that influences the load angle realizes being connected with slide rail 5, and the other end is located the reaction connecting piece 7 outside and links to each other with jack 9, and jack 9 offsets with reaction connecting piece 7 to exert reaction force each other with reaction 3 based on this reaction connecting piece 7.
The pull rod 11 in this embodiment is located at the center of the counter force connecting piece, the jack 9 is a hydraulic jack 9 with high loading capacity, the hydraulic jack 9 is in a sleeve shape and is sleeved outside the pull rod 11, the hydraulic jack 9 is connected with the pull rod 11 through a jack top plate 10 of the hydraulic jack 9, and thrust is applied to the pull rod 11 in a direction away from the counter force connecting piece 3 based on the jack top plate 10. Through the arrangement mode, the rigidity of the loading piece 4 is far smaller than that of the testing mechanism, so that when the loading piece is pulled to generate rigid displacement, the structural piece can still be well centered, and the phenomenon that the outer surface of the to-be-tested piece 18 is unstably damaged is avoided.
With reference to fig. 1, the base 1 in this embodiment is provided with a plurality of connecting ends 2, such as connecting holes including connecting screw holes, for connecting with the reaction member 3 of the testing mechanism, and the testing mechanism is connected with the connecting ends 2 at different positions to assist in adjusting the angular direction, so as to load the to-be-tested member 18 in any angular direction.
Further, the base 1 of the present embodiment is detachably provided with a bracket 15 assembly on the second portion thereof, which can be raised or lowered relative to the base 1 for supporting and limiting the reaction member 3. The bracket 15 assembly includes a screw 16 screwed to the base 1 and a bracket 15 provided at an end of the screw 16 facing the reaction member 3 for supporting the reaction member 3, and the screw 16 is positioned on the base 1 by a positioning nut 17. The screw 16 is perpendicular to the base 1, and can form a right-angled triangle with the connecting end 2 and the reaction member 3 in a matching manner, the connecting position between the reaction member 3 and the base 1 and the height of the screw 16 are adjusted based on the triangle and the pre-realized load angle, or the reverse calculation is performed to determine the actual load angle, and whether the current load direction meets the requirement is verified by comparing with the pre-realized load angle.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (10)
1. The utility model provides a glass structure connected node slant load loading device which characterized in that includes:
a base;
the limiting assembly is arranged on the base and used for forming a fixing groove for fixing a piece to be tested on the base in a matching mode, the piece to be tested is a glass structural piece and is provided with a connecting node for being externally connected with other structural pieces, and an embedded piece is arranged at the connecting node;
the testing mechanism is connected with the embedded part and used for applying tension to the embedded part so as to carry out load test on the connecting node, one end of the testing mechanism is detachably connected with the base and can rotate relative to the base so as to adjust the force application angle of the testing mechanism on the embedded part, and the testing mechanism can carry out load test on the connecting node in different angle directions.
2. The glass structure connecting node diagonal load loading device of claim 1, wherein the testing mechanism comprises:
the loading part is connected with the embedded part;
the sliding rail is arranged on the loading piece and is at least arc-shaped;
the end part of the pull rod is positioned in the slide rail and can move along the slide rail; and
and the traction assembly is provided with two opposite ends, one end of the traction assembly is rotatably connected with the base, and the other end of the traction assembly is connected with the pull rod and is used for applying a pulling force to the pull rod so that the pulling force is sequentially transmitted to the connecting nodes of the slide rail, the loading part, the embedded part and the part to be tested through the pull rod.
3. The glass structure joint diagonal load loading device of claim 2, wherein the pulling assembly comprises:
one end of the counterforce piece is rotatably connected with the base;
and the jack is positioned at the other end of the counter-force piece and is connected with the pull rod, when the jack pushes the pull rod in the direction of pulling the loading piece, the jack and the counter-force piece are mutually abutted and respectively apply counter-acting forces to each other, so that the whole stress of the testing mechanism is balanced, and the relative position of the testing mechanism and the base is ensured to be stable.
4. The glass structure connecting node oblique load loading device according to claim 3, wherein the reaction member comprises two reaction members, the two reaction members are oppositely arranged, one end of each reaction member in the same direction is rotatably connected with the base, the other end of each reaction member is connected with the other end of each base through a reaction connecting member, the to-be-tested member, the loading member and the sliding rail are located between the two reaction members, one end of the pull rod penetrates through the reaction connecting member to be connected with the sliding rail, the other end of the pull rod is located outside the reaction connecting member and connected with the jack, and the jack abuts against the reaction connecting member.
5. The glass structure connecting node oblique load loading device of claim 4, wherein the pull rod is located at the center of the counter force connecting piece, the jack is a hydraulic jack which is sleeved outside the pull rod, and a jack top plate of the hydraulic jack is connected with the pull rod.
6. The glass structure connecting node oblique load loading device of claim 1, wherein a plurality of connecting ends are provided on the base for connecting with the testing mechanism, and the testing mechanism assists in adjusting the angular direction by connecting with connecting ends at different positions.
7. A glass structure connecting node oblique load loading device according to claim 3, wherein the base is detachably provided with a bracket assembly capable of ascending or descending relative to the base for supporting and limiting the reaction member.
8. The device for loading a glass structure connecting point with a diagonal load according to claim 7, wherein the bracket assembly comprises a screw rod screwed on the base and a bracket arranged at one end of the screw rod facing the reaction member and used for supporting the reaction member.
9. The device for loading a glass structure connecting point with an oblique load according to claim 1, wherein the limiting component comprises two first limiting members disposed at an interval, and a second limiting member for engaging and simultaneously clamping two first limiting members, the second limiting member is detachably connected to the base, and the first limiting member, the second limiting member and the base cooperate to form the fixing groove for clamping the test object.
10. The glass structure connecting point oblique load loading device according to claim 9, wherein the to-be-tested piece is fixedly connected with the first limiting piece through an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011002407.XA CN111965035A (en) | 2020-09-22 | 2020-09-22 | Glass structure connected node slant load loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011002407.XA CN111965035A (en) | 2020-09-22 | 2020-09-22 | Glass structure connected node slant load loading device |
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| CN111965035A true CN111965035A (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011002407.XA Pending CN111965035A (en) | 2020-09-22 | 2020-09-22 | Glass structure connected node slant load loading device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284941A (en) * | 2020-12-24 | 2021-01-29 | 长沙理工大学 | Electromagnetic loading device, multi-angle bidirectional electromagnetic loading test platform and test method |
-
2020
- 2020-09-22 CN CN202011002407.XA patent/CN111965035A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284941A (en) * | 2020-12-24 | 2021-01-29 | 长沙理工大学 | Electromagnetic loading device, multi-angle bidirectional electromagnetic loading test platform and test method |
| CN112284941B (en) * | 2020-12-24 | 2021-03-12 | 长沙理工大学 | Electromagnetic loading device, multi-angle bidirectional electromagnetic loading test platform and test method |
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Address after: 100013, No. 30 East Third Ring Road, Chaoyang District, Beijing Applicant after: CHINA ACADEMY OF BUILDING RESEARCH Ltd. Applicant after: China Construction Research Technology Co., Ltd Address before: 100013, No. 30 East Third Ring Road, Chaoyang District, Beijing Applicant before: CHINA ACADEMY OF BUILDING RESEARCH Ltd. Applicant before: Jianyan Technology Co., Ltd |