360-degree occlusion node equivalent spring horizontal stiffness testing device considering coupling effect

Abstract

The utility model discloses a 360-degree occlusion node equivalent spring horizontal stiffness testing device considering a coupling effect, which comprises two clamping assemblies with plate-shaped structures, and the two clamping assemblies are symmetrically arranged and are positioned on the same plane; the clamping assembly comprises a special-shaped clamping plate and a rectangular clamping plate which are oppositely arranged in parallel, the special-shaped clamping plate is connected with the rectangular clamping plate through a bolt, and a gap is reserved between the special-shaped clamping plate and the rectangular clamping plate. The opposite ends of the two special-shaped clamping plates are planes, a gap is reserved between the two special-shaped clamping plates, and clamping ends are formed at the other ends of the two special-shaped clamping plates respectively and used for being connected and fixed with loading equipment respectively. The opposite ends of the two rectangular clamping plates are flush with or higher than the special-shaped clamping plate. The integral device has higher rigidity and stability, ensures that the occlusion node does not generate vertical displacement and rotation during loading, and further more accurately tests the horizontal rigidity of the occlusion node.

Description

TECHNICAL FIELD

[0001] The utility model relates to building structure test technical field especially, it relates to a kind of 360 ° bite joint equivalent spring horizontal stiffness testing device considering coupling effect. BACKGROUND

[0002] In the construction industry, metal panel is widely used in roof, wall and other parts due to its good appearance and functionality, and the panel is connected by bite connection, which generally has multiple bite forms, and common ones include vertical lock edge bite structure, 360 ° bite structure, etc. However, with the increase of wind load, the wind resistance of metal panel becomes an important problem.

[0003] For 360 ° bite structure, the existing wind resistance testing method has problems such as low testing accuracy and complex operation, and cannot accurately evaluate the wind resistance of metal panel. Therefore, to evaluate the wind resistance of metal panel, some people have proposed a three-way decoupling spring model to simulate the mechanical behavior of the node, which decouples the 360 ° bite structure into three equivalent springs, including horizontal spring, vertical spring and rotational spring. The mechanical properties of the bite node in three directions are represented by the three equivalent springs in three directions. However, the existing three-way equivalent spring is relatively independent, and the simulation result has a large error compared with the actual test result, and the accuracy is not high.

[0004] Therefore, scholars have found that the reason for the above problems is that there is a coupling effect between the three-way spring stiffness of the 360 ° bite metal panel node, such as the coupling effect between the horizontal direction and the rotational direction, which affects the mechanical properties in one direction, i.e. the horizontal force required to produce the same horizontal displacement of the node is different when the angle is different. Therefore, the applicant proposes a 360 ° bite node spring model considering the coupling effect of the spring to solve this problem. However, most of the existing testing devices are ordinary tensile testing devices, which have poor constraint effect on the 360 ° bite metal panel node. When stretched, the bite node is easily deformed in three directions, making it difficult to accurately test the one-way stiffness, which brings many inconveniences to the testing work. SUMMARY

[0005] To solve the above problems of the prior art, the technical problem to be solved by the utility model is to provide a 360 ° bite node equivalent spring horizontal stiffness testing device considering coupling effect, which solves the problem of poor constraint effect of the testing device on the bite node and the difficulty in testing one-way stiffness in the prior art.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The utility model provides a kind of 360 ° bite joint equivalent spring horizontal stiffness testing device considering coupling effect, including two plate-shaped structure clamping components, two clamping components are symmetrically arranged and located in the same plane;The clamping component includes opposite and parallelly arranged special-shaped clamping plate and rectangular clamping plate, the special-shaped clamping plate is connected with rectangular clamping plate by bolt, and gap is left between special-shaped clamping plate and rectangular clamping plate;Two special-shaped clamping plates opposite one end are plane and leave gap between, and the other end is respectively profiled with clamping end, respectively for with loading equipment connection and fixed;Two rectangular clamping plates opposite one end are flush with or higher than special-shaped clamping plate.

[0008] As optimization, the special-shaped clamping plate is T-shaped as a whole, and the end away from the clamping end is rectangular as a whole, and the side close to the clamping end transitions to the clamping end along an arc.

[0009] As optimization, the rectangular clamping plate is opposite to the rectangular end of the special-shaped clamping plate and is connected to the special-shaped clamping plate by a plurality of bolts.

[0010] As optimization, it further includes a 360 ° bite joint installed between the two clamping components.

[0011] The 360 ° bite joint includes a first bite portion and a second bite portion that are engaged together, and the first bite portion and the second bite portion are respectively profiled from one end of two adjacent panels.

[0012] The first bite portion includes a first vertical plate formed by bending and extending upward from one end of a horizontally arranged panel, a first flat plate formed by bending and extending away from the side of the panel, a second vertical plate formed by bending and extending downward, a second flat plate formed by bending and extending toward the side of the panel close to the panel, and a third vertical plate formed by bending and extending upward, and the first vertical plate, the second vertical plate, and the third vertical plate have gaps between them.

[0013] The second bite portion includes a fourth vertical plate formed by bending and extending upward from a horizontally arranged panel, and a third flat plate formed by bending and extending toward the side of the panel close to the panel.

[0014] When the first bite portion engages with the second bite portion of the adjacent panel, the fifth vertical plate engages in the gap between the second vertical plate and the third vertical plate, the third flat plate engages in the gap between the upper end of the third vertical plate and the first flat plate, and the fourth vertical plate engages in the gap between the first vertical plate and the third vertical plate.

[0015] The two panels of the 360 ° bite joint are vertically arranged and clamped in the gap between the special-shaped clamping plate and the rectangular clamping plate of the two clamping components.

[0016] As optimization, the special-shaped clamping plate and the rectangular clamping plate completely cover the panel clamped therebetween.

[0017] The utility model discloses a structure of special-shaped clamping plate and rectangular clamping plate can better hold the panel of 360 ° bite joint, and the whole has higher rigidity and stability, guarantees the bite joint not to produce vertical displacement when loading, simultaneously, rectangular clamping plate and special-shaped clamping plate flush or higher than special-shaped clamping plate, make rectangular clamping plate can support the web of bite joint well, thereby better constraint relative rotation between bite joint, thereby guarantee bite joint only produces horizontal displacement, and further more accurate test bite joint's horizontal rigidity. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is structural schematic diagram of the utility model;

[0019] In the drawing, 1 special-shaped clamping plate, 2 rectangular clamping plate, 3 360 ° bite joint. DETAILED DESCRIPTION

[0020] The utility model will be further explained in detail in connection with the drawings.

[0021] Specific implementation time: see Figure 1 ,

[0022] A 360 ° bite joint equivalent spring horizontal stiffness testing device considering coupling effect, including two clamping assemblies of plate structure, two clamping assemblies are symmetrically arranged and are located on the same plane, the clamping assembly includes special-shaped clamping plate 1 and rectangular clamping plate 2 that are opposite and parallel, the special-shaped clamping plate 1 is connected with rectangular clamping plate 2 through bolt, and the gap between special-shaped clamping plate 1 and rectangular clamping plate 2 is used for clamping the panel of 360 ° bite joint 3, specifically, the 360 ° bite joint 3 includes the first bite part and the second bite part that bite together, the first bite part and the second bite part are shaped by the end of two adjacent panels close to each other respectively;

[0023] Among them, the first bite part includes the first vertical plate that is formed by the end of the horizontally arranged panel bending upwards and extending, the first horizontal plate that is formed by bending and extending to the side away from the panel, the second vertical plate that is formed by bending and extending downwards, the second horizontal plate that is formed by bending and extending to the side close to the panel, the third vertical plate that is formed by bending and extending upwards, and the gap between the first vertical plate and the first vertical plate, the second vertical plate and the third vertical plate, and the upper end of the third vertical plate and the first horizontal plate.

[0024] The second engaging part comprises a fourth vertical plate formed by bending and extending upwardly from the horizontally arranged panel, a third flat plate formed by bending and extending toward the side close to the panel, and a fifth vertical plate formed by bending and extending downwardly;

[0025] When the first engaging part engages with the second engaging part of the adjacent panel, the fifth vertical plate engages in the gap between the second vertical plate and the third vertical plate, the third flat plate engages in the gap between the upper end of the third vertical plate and the first flat plate, and the fourth vertical plate engages in the gap between the first vertical plate and the third vertical plate.

[0026] The two panels of the 360° engaging node 3 are vertically arranged and clamped in the gap between the profiled clamping plate 1 and the rectangular clamping plate 2 of the two clamping assemblies.

[0027] The opposite ends of the two profiled clamping plates 1 are flat and have a gap therebetween, and the other ends are respectively shaped into clamping ends for connecting with the loading device and being fixed. The profiled clamping plate 1 is in the shape of T as a whole, and the end away from the clamping end is in the shape of rectangle as a whole, and the side close to the clamping end of the end is arc-shaped and transitions to the clamping end. The rectangular clamping plate 2 is opposite to the end of the profiled clamping plate 1 in the shape of rectangle and is connected with the profiled clamping plate 1 through a plurality of bolts. The end of the profiled clamping plate 1 in the shape of rectangle and the rectangular clamping plate 2 completely cover the panel clamped therebetween.

[0028] The opposite ends of the two rectangular clamping plates 2 are flush with or higher than the profiled clamping plates 1. Generally, the panel and the first vertical plate of the 360° engaging node 3 have a circular arc transition, so that the end of the rectangular clamping plate 2 is slightly higher than the profiled clamping plate 1, which can well support the circular arc transition between the panel and the first vertical plate and prevent the transition part between the panel and the first vertical plate from being bent and deformed in the direction away from the engaging node due to the relative rotation between the engaging nodes.

[0029] In use, the 360° engaging node 3 to be tested is installed on the profiled clamping plate and the rectangular clamping plate 2, and a horizontal pulling force is applied through the loading setting. At the same time, the data acquisition system collects and analyzes the pressure and displacement data in real time. The automatic testing can be realized through the control system, which improves the testing efficiency and accuracy. The test device has simple structure and convenient operation, can realize accurate testing of the horizontal spring system of the 360° engaging node 3, and improve the accuracy and reliability of the wind resistance performance evaluation. At the same time, the realization of automatic testing improves the testing efficiency and reduces the human error. The device is suitable for the field of wind resistance performance testing of various building structures and has wide application prospect.

[0030] The utility model discloses a structure form that adopts special-shaped clamping plate and rectangular clamping plate can better clamping 360 degree occlusal node's panel, whole has higher rigidity and stability, guarantee when loading occlusal node will not produce vertical displacement, simultaneously, rectangular clamping plate and special-shaped clamping plate flush or higher than special-shaped clamping plate, make rectangular clamping plate can support the web of occlusal node well, thereby better constraint relative rotation between occlusal node, thereby guarantee occlusal node only produce horizontal displacement, further more accurate test occlusal node's horizontal rigidity.

[0031] Although the embodiments of the utility model have been shown and described, for those skilled in the art, various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and basis of the utility model, the scope of the utility model is defined by the appended claims and their equivalents, therefore the embodiments of the utility model are only for the illustrative examples of the utility model, the embodiments of the utility model do not constitute the limitation of the utility model no matter from which point.

Claims

1. A 360° bite node equivalent spring horizontal stiffness testing device considering coupling effects, characterized in that, The clamping assembly comprises two plate-shaped structures, which are symmetrically arranged and located in the same plane; the clamping assembly comprises a special-shaped clamping plate and a rectangular clamping plate arranged oppositely and in parallel, the special-shaped clamping plate is connected with the rectangular clamping plate through bolts, and a gap is left between the special-shaped clamping plate and the rectangular clamping plate; the opposite ends of the two special-shaped clamping plates are flat and a gap is left between them, and the other ends are respectively formed with clamping ends for being connected with and fixed to the loading equipment; the opposite ends of the two rectangular clamping plates are flush with or higher than the special-shaped clamping plate.

2. The 360° bite node equivalent spring horizontal stiffness test device considering coupling effects of claim 1, wherein, The special-shaped clamping plate is in the shape of T as a whole, the end thereof away from the clamping end is in the shape of rectangle as a whole, and the side of the end close to the clamping end is transitioned to the clamping end along an arc.

3. The 360° bite node equivalent spring horizontal stiffness test device considering coupling effects of claim 2, wherein, The rectangular clamping plate is opposite to the end of the special-shaped clamping plate in the shape of rectangle and is connected with the special-shaped clamping plate through a plurality of bolts.

4. The 360° bite node equivalent spring horizontal stiffness test device considering coupling effects of claim 2, wherein, Further comprising a 360° occlusion joint installed between the two clamping assemblies; The 360° occlusion joint comprises a first occlusion part and a second occlusion part occluded together, the first occlusion part and the second occlusion part are respectively formed by the ends of two adjacent panels close to each other; The first occlusion part comprises a first vertical plate formed by the end of the horizontally arranged panel being bent upward and extended, a first flat plate formed by being bent and extended away from the side of the panel, a second vertical plate formed by being bent downward and extended, a second flat plate formed by being bent and extended close to the side of the panel, a third vertical plate formed by being bent upward and extended, and gaps are left between the first vertical plate and the first vertical plate, between the second vertical plate and the third vertical plate, and between the upper end of the third vertical plate and the first flat plate; The second occlusion part comprises a fourth vertical plate formed by the horizontally arranged panel being bent upward and extended, a third flat plate formed by being bent and extended close to the side of the panel, and a fifth vertical plate formed by being bent downward and extended; When the first occlusion part is occluded with the second occlusion part of the adjacent panel, the fifth vertical plate is occluded in the gap between the second vertical plate and the third vertical plate, the third flat plate is occluded in the gap between the upper end of the third vertical plate and the first flat plate, and the fourth vertical plate is occluded in the gap between the first vertical plate and the third vertical plate; The two panels of the 360° occlusion joint are vertically arranged and are clamped in the gaps between the special-shaped clamping plates and the rectangular clamping plates of the two clamping assemblies.

5. The 360° bite node equivalent spring horizontal stiffness test device considering coupling effects of claim 4, wherein, The end of the special-shaped clamping plate in the shape of rectangle and the rectangular clamping plate completely cover the panel clamped therebetween.

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