CN113758792A - Pipe component axial compression test loading device - Google Patents

Pipe component axial compression test loading device Download PDF

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Publication number
CN113758792A
CN113758792A CN202010501303.7A CN202010501303A CN113758792A CN 113758792 A CN113758792 A CN 113758792A CN 202010501303 A CN202010501303 A CN 202010501303A CN 113758792 A CN113758792 A CN 113758792A
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CN
China
Prior art keywords
hinge
hinge member
loading device
layer
axial compression
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Pending
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CN202010501303.7A
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Chinese (zh)
Inventor
胡晓光
邢海军
崔智婕
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
State Grid Fujian Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
State Grid Fujian Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, China Electric Power Research Institute Co Ltd CEPRI, State Grid Fujian Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202010501303.7A priority Critical patent/CN113758792A/en
Publication of CN113758792A publication Critical patent/CN113758792A/en
Pending legal-status Critical Current

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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
    • G01N3/02—Details
    • 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
    • G01N3/12—Pressure testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0003—Steady
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0019—Compressive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/0042—Pneumatic or hydraulic means
    • G01N2203/0048—Hydraulic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0262—Shape of the specimen
    • G01N2203/0274—Tubular or ring-shaped specimens

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention provides two sets of loading devices for a pipe member axial pressure test, wherein a pipe member is sleeved between the two sets of loading devices, and each set of loading device comprises: a first hinge member, a second hinge member and a connecting plate; the first hinge member is in fit hinge connection with the second hinge member, and the second hinge member is connected with the connecting plate through the first hinge member; the end of the second hinge member, which is not hinged with the first hinge member, is provided with a step structure, and the pipe member is sleeved by a matched step according to the diameter selection. The pipe component does not need to be specially processed and welded with a flange end plate, and does not need to be connected with the test piece and the spherical hinge through bolts, so that the specification and the number of the spherical hinge are greatly reduced, and the working efficiency of the test is greatly improved.

Description

Pipe component axial compression test loading device
Technical Field
The invention relates to the fields of power transmission lines, aerospace, machinery, buildings and bridges, in particular to a loading device for a pipe member axial compression test.
Background
The steel pipe is widely applied to a plurality of steel structures such as a power transmission line iron tower, a building structure, a bridge, a communication tower and the like as a common stressed member. When the member is compressed, the design calculation of the steel pipe member is usually controlled by stability, i.e. the member failure is manifested as overall bending instability, and the bearing capacity is determined by the stable condition. The actual load bearing capacity of the axial compression member is affected by initial defects such as initial bending, initial eccentricity, residual stress, and the like, in addition to the sectional form and material. These effects are reflected by the overall stability factor phi. The value of the overall stability coefficient of the steel pipe member is obtained by testing the axial compression test of the member.
The conventional steel pipe member test loading device is shown in figure 2, a test piece is arranged in a test frame, two ends of the test piece are respectively connected with a pair of spherical hinged supports, a spherical hinge at one end is connected to the test frame, and a hydraulic cylinder for loading is connected to a spherical hinge at the other end. The connection between the steel pipe test piece and the spherical hinge is shown in fig. 3, the steel pipe test piece needs to be welded with an end plate with a bolt hole and connected with the spherical hinge through a bolt, and the structure type of the steel pipe test piece is similar to that of a flange. Different end plates need to be welded on steel pipe test pieces of different specifications, and matched spherical hinges are arranged. In order to meet the test requirements, test piece end plates and spherical hinged supports of different specifications need to be specially processed. The test device has many connecting pieces, is time-consuming to install and is provided with a series of spherical hinges.
Disclosure of Invention
In order to overcome the defects of the prior art, a loading device for a pipe member axial compression test is provided.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a pipe component axial compression test loading device, the loading device is two sets, and pipe component (4) cup joints between two sets of loading device, and every set of loading device all includes: a first hinge member (1), a second hinge member (2) and a connecting plate (3);
the first hinge component (1) is in fit hinge joint with the second hinge component (2), and the second hinge component (2) is connected with the connecting plate (3) through the first hinge component (1); the end of the second hinge component (2) which is not hinged with the first hinge component (1) is provided with a step structure, and the pipe component (4) selects matched steps to be sleeved according to the diameter.
Preferably, the stepped structure is a plurality of layers of stepped bosses, each layer of the bosses is cylindrical, the diameter of each layer of the cylinders decreases gradually from layer to layer, and the pipe member (4) is sleeved by selecting the bosses slightly smaller than the inner diameter according to the inner diameter.
Preferably, the middle gap between the pipe component (4) and the sleeving boss is 0.2 mm-20 mm, and the height of each layer of the boss is 1/100-2 times of the diameter of the boss.
Preferably, the stepped structure is a groove sleeve with a plurality of steps, each layer of the groove sleeve is cylindrical, the inner diameter of each layer of step decreases gradually layer by layer, and the pipe component (4) is inserted into the groove slightly larger than the outer diameter according to the outer diameter.
Preferably, the middle gap between the pipe member (4) and the insertion groove is 0.2 mm-20 mm, and the height of each layer of the groove is 1/100-2 times of the outer diameter of the pipe member (4).
Preferably, the first hinge member (1) and the second hinge member (2) are matched and hinged to form one end, the first hinge member (1) is provided with a convex surface block, the second hinge member (2) is provided with a concave surface block matched with the convex surface block or the first hinge member (1) is provided with a concave surface block, and the second hinge member (2) is provided with a convex surface block matched with the concave surface block.
Preferably, the convex surface block is a convex spherical block, the concave surface block is a concave spherical block matched with the convex spherical block, and the first hinge member (1) is in spherical hinge connection with the second hinge member (2).
Preferably, the convex surface block is a knife edge surface block, the concave surface block is a concave surface block matched with the knife edge surface block, and the first hinge member (1) is hinged with the second hinge member (2).
Preferably, the first hinge member (1) and the connecting plate (3) are fixedly connected by bolts. Compared with the prior art, the invention has the beneficial effects that:
(1) the utility model provides a pipe component axial compression test loading device, the loading device is two sets, and the pipe component cup joints between two sets of loading device, and every set of loading device all includes: a first hinge member, a second hinge member and a connecting plate; the first hinge member is in fit hinge connection with the second hinge member, and the second hinge member is connected with the connecting plate through the first hinge member; the end of the second hinge member, which is not hinged with the first hinge member, is provided with a step structure, and the pipe member is sleeved by a matched step according to the diameter selection. The pipe component does not need to be specially processed and welded with a flange end plate, and does not need to be connected with the test piece and the spherical hinge through bolts, so that the specification and the number of the spherical hinge are greatly reduced, and the working efficiency of the test is greatly improved.
(2) One set of device can satisfy the connection demand of the test piece of different specifications simultaneously, has avoided frequently changing the ball pivot, has greatly improved experimental work efficiency.
Drawings
FIG. 1 is a schematic view of the installation and use structure of the present invention;
FIG. 2 is a schematic view of an axial compression test loading device;
FIG. 3 is a schematic view of a test piece connected with a spherical hinge;
FIG. 4 is a schematic view of a first embodiment of the present invention;
FIG. 5 is a schematic view of a second embodiment of the present invention;
FIG. 6 is a schematic view of a first configuration of the present invention using a knife-edge hinge scheme;
FIG. 7 is a schematic view of a second configuration of the present invention using a knife-edge hinge scheme;
FIG. 8 is a schematic view of a first embodiment of the present invention employing a grooved sleeve;
FIG. 9 is a schematic view of a second construction of the present invention employing a grooved sleeve;
FIG. 10 is a schematic view of a first embodiment of the grooved sleeve knife-edge hinge of the present invention;
FIG. 11 is a schematic view of a second embodiment of the present invention using a grooved sleeve knife-edge hinge;
FIG. 12 is a schematic view of the installation and use of the present invention using a grooved sleeve solution
In the figure, 1-first hinge member, 2-second hinge member, 3-connecting plate, 4-pipe member, 5-spherical hinge, 6-hydraulic cylinder, 7-end plate.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention, but the present invention is not limited to these examples.
Example 1:
(1) description of the invention
The invention discloses a loading device for a pipe member axial compression test, which comprises a first hinge member 1, a second hinge member 2 and a connecting plate 3 as shown in figure 1, wherein figures 2 and 3 show the loading device for the steel pipe member axial compression test and the connection between a steel pipe test piece and a spherical hinge, which are commonly used at present, and the loading device for the steel pipe member axial compression test has many defects. According to a first structural form of the loading device for the axial compression test of the pipe member, as shown in fig. 4, a threaded hole is designed on one side of the plane of a first hinge member 1 and is fixedly connected with a connecting plate 3 through a bolt, and the connecting plate 3 is fixedly connected with a test frame; the first hinge member 1 can be a hinged convex spherical block at one end of the first hinge member 1 connected with the second hinge member 2, the second hinge member 2 is a hinged concave spherical block matched with the hinged convex spherical block, and the first hinge member 1 and the second hinge member 2 are in spherical hinge joint and can rotate in all directions; the other side of the second hinge component 2 is provided with a step-shaped boss, the boss is provided with a plurality of layers, each layer is cylindrical, and the diameter of each layer of the cylinder is gradually reduced layer by layer.
The pipe member axial compression test loading device of the present invention may further include a first hinge member 1, a second hinge member 2, and a connecting plate 3 according to the structure shown in fig. 5. One side of the plane of the first hinge component 1 is provided with a threaded hole, and is fixedly connected with a connecting plate 3 through a bolt, and the connecting plate 3 is fixedly connected with a test frame; the first hinge member 1 can be further provided with a hinged concave spherical block at one end of the first hinge member 1 connected with the second hinge member 2, the second hinge member 2 is provided with a hinged convex spherical block matched with the hinged concave spherical block, and the first hinge member 1 and the second hinge member 2 are in spherical connection and can rotate in all directions; the other side of the second hinge component 2 is provided with a step-shaped boss, the boss is provided with a plurality of layers, each layer is cylindrical, and the diameter of each layer of cylinder decreases progressively from layer to layer.
The invention comprises two types of spherical hinges shown in figures 4 and 5 and a knife hinge type shown in figures 6 and 7. The following description will be made by taking fig. 4 as an example.
The loading device for the axial compression test of the pipe member of the present invention may further include a first hinge member 1, a second hinge member 2, and a connecting plate 3 according to the structure shown in fig. 8 to 11. One side of the plane of the first hinge component 1 is provided with a threaded hole, and is fixedly connected with a connecting plate 3 through a bolt, and the connecting plate 3 is fixedly connected with a test frame; one end of the second hinge member 2 connected with the first hinge member 1 forms spherical hinge through the convex spherical block and the concave spherical block, and can rotate in all directions; or adopting knife edge hinge joint; the other side of the second hinge component 2 is provided with a step-shaped sleeve, the steps in the sleeve are provided with a plurality of layers, each layer is cylindrical, and the inner diameter of each layer of circular steps is gradually reduced layer by layer.
(2) The invention is used and installed
The tube member axial compression test loading device disclosed by the invention is installed and used as shown in figure 1. One side of the plane of the first hinge component 1 is provided with a threaded hole, and is fixedly connected with a connecting plate 3 through a bolt, and the connecting plate 3 is fixedly connected with a test frame; the first hinge member 1 can be a hinged convex spherical block at one end of the first hinge member 1 connected with the second hinge member 2, the second hinge member 2 is a hinged concave spherical block matched with the hinged convex spherical block, and the first hinge member 1 and the second hinge member 2 are in spherical hinge joint and can rotate in all directions; the other side of the second hinge component 2 is provided with a step-shaped boss, the boss is provided with a plurality of layers, each layer is cylindrical, and the diameter of each layer of the cylinder is gradually reduced layer by layer. And selecting a matched boss cylinder on the second hinge member 2 according to the inner diameter of the pipe test piece 4, and sleeving the pipe test piece 4 on the boss cylinder.
The loading device for the axial compression test of the pipe member adopts the installation and the use of the groove sleeve, and is shown in figure 12. And selecting a matched stepped sleeve on the second hinge member 2 according to the outer diameter of the pipe test piece 4, and inserting the pipe test piece 4 into the groove.
Example 2
(1) As shown in fig. 1, a threaded hole is designed on one side of a plane of a first hinge member 1, the first hinge member is fixedly connected with a connecting plate 3 through a bolt, and the connecting plate 3 is fixedly connected with a test frame; the first hinge member 1 can be a hinged convex spherical block at one end of the first hinge member 1 connected with the second hinge member 2, the second hinge member 2 is a hinged concave spherical block matched with the hinged convex spherical block, and the first hinge member 1 and the second hinge member 2 are in spherical hinge joint and can rotate in all directions; the other side of the second hinge component 2 is provided with a step-shaped boss, the boss is provided with a plurality of layers, each layer is cylindrical, and the diameter of each layer of the cylinder is gradually reduced layer by layer. The specification of the steel pipe test piece is phi 273 multiplied by 6, the inner diameter is 261mm, and the steel pipe test piece is sleeved on a cylindrical boss with the diameter of 260 mm. The installation method of the two ends of the member is the same.
(2) As shown in fig. 1, a threaded hole is designed on one side of a plane of a first hinge member 1, the first hinge member is fixedly connected with a connecting plate 3 through a bolt, and the connecting plate 3 is fixedly connected with a test frame; the first hinge member 1 can be a hinged convex spherical block at one end of the first hinge member 1 connected with the second hinge member 2, the second hinge member 2 is a hinged concave spherical block matched with the hinged convex spherical block, and the first hinge member 1 and the second hinge member 2 are in spherical hinge joint and can rotate in all directions; the other side of the second hinge component 2 is provided with a step-shaped boss, the boss is provided with a plurality of layers, each layer is cylindrical, and the diameter of each layer of the cylinder is gradually reduced layer by layer. The specification of the steel pipe test piece is phi 168 multiplied by 5, the inner diameter is 158mm, and the steel pipe test piece is sleeved on a cylindrical boss with the diameter of 155 mm. The installation method of the two ends of the member is the same.
(3) As shown in fig. 12, a threaded hole is designed on one side of the plane of the first hinge member 1, and the first hinge member is fixedly connected with the connecting plate 3 through a bolt, and the connecting plate 3 is fixedly connected with the test frame; the first hinge member 1 can be a hinged convex spherical block at one end of the first hinge member 1 connected with the second hinge member 2, the second hinge member 2 is a hinged concave spherical block matched with the hinged convex spherical block, and the first hinge member 1 and the second hinge member 2 are in spherical hinge joint and can rotate in all directions; the other side of the second hinge component 2 is provided with a round table, a stepped groove sleeve is arranged in the second hinge component, the steps are provided with a plurality of layers, each layer is cylindrical, and the inner diameters of the cylindrical steps of each layer are gradually decreased layer by layer. The specification of the steel pipe test piece is phi 273 multiplied by 6, the outer diameter is 273mm, and the steel pipe test piece is inserted into a cylindrical groove with the inner diameter of 275 mm. The installation method of the two ends of the member is the same.
(4) As shown in fig. 12, a threaded hole is designed on one side of the plane of the first hinge member 1, and the first hinge member is fixedly connected with the connecting plate 3 through a bolt, and the connecting plate 3 is fixedly connected with the test frame; the first hinge member 1 can be a hinged convex spherical block at one end of the first hinge member 1 connected with the second hinge member 2, the second hinge member 2 is a hinged concave spherical block matched with the hinged convex spherical block, and the first hinge member 1 and the second hinge member 2 are in spherical hinge joint and can rotate in all directions; the other side of the second hinge component 2 is provided with a round table, a stepped groove sleeve is arranged in the second hinge component, the steps are provided with a plurality of layers, each layer is cylindrical, and the inner diameters of the cylindrical steps of each layer are gradually decreased layer by layer. The specification of the steel pipe test piece is phi 168 multiplied by 5, the outer diameter is 168mm, and the steel pipe test piece is inserted into a cylindrical groove with the inner diameter of 170 mm. The installation method of the two ends of the member is the same.
Example 3
(1) The boss structure type of the loading device for the axial compression test of the pipe member comprises but is not limited to the structure types shown in figures 4-7, and the steel pipe test piece is sleeved on the matched boss according to the inner diameter, and the test piece mounting method is shown in figure 1;
(2) the structural form of the groove of the loading device for the axial compression test of the pipe member is shown in figures 8-11, the structural form is similar to the principle of (1), the structural form is a concave step form, and the installation method that the steel pipe test piece is inserted into the groove according to the size of the outer diameter is shown in figure 12.
(3) The boss structure of the loading device for the axial compression test of the pipe component has the same or different heights of each layer of bosses, the diameter of a boss cylinder is smaller than the inner diameter of the steel pipe, and the middle gap is 0.2-20 mm; the height of each layer is 1/100 to 2 times the boss diameter;
(4) the groove step sleeve structure of the loading device for the pipe component axial compression test has the advantages that the heights of steps of each layer are the same or different, the inner diameter of the cylindrical surface of each layer of groove step is larger than the outer diameter of a steel pipe, and the middle gap is 0.2-20 mm; the height of each layer is 1/100 to 2 times of the outer diameter of the steel pipe;
(5) the invention includes but is not limited to spherical hinge, knife edge hinge structure type;
(6) the invention is applicable to the section types of test components, including but not limited to round tubes, square tubes, elliptical tubes, round rods, square rods, rectangular section tubes, and the like;
(7) the material of the test device of the present invention includes, but is not limited to, alloy steel, high strength low alloy steel, carbon steel, stainless steel, aluminum alloy, copper, etc.
It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention is included in the scope of the claims of the present invention filed as filed.

Claims (9)

1. The utility model provides a pipe component axial compression test loading device which characterized in that, the loading device is two sets, and pipe component (4) cup joints between two sets of loading device, and every set of loading device all includes: a first hinge member (1), a second hinge member (2) and a connecting plate (3);
the first hinge component (1) is in fit hinge joint with the second hinge component (2), and the second hinge component (2) is connected with the connecting plate (3) through the first hinge component (1); the end of the second hinge component (2) which is not hinged with the first hinge component (1) is provided with a step structure, and the pipe component (4) selects matched steps to be sleeved according to the diameter.
2. The tube member axial compression test loading device of claim 1, wherein the step structure is a plurality of layers of step-shaped bosses, each layer of the bosses is cylindrical, the diameter of each layer of the cylinders decreases gradually from layer to layer, and the tube member (4) is sleeved by selecting the bosses slightly smaller than the inner diameter according to the inner diameter.
3. The tube member axial compression test loading device of claim 2, wherein the middle gap between the tube member (4) and the sleeving boss is 0.2 mm-20 mm, and the height of each layer of the boss is 1/100-2 times of the diameter of the boss.
4. The tube member axial compression test loading device of claim 1, wherein the step structure is a groove sleeve with a plurality of steps, each layer of the groove sleeve is cylindrical, the inner diameter of each layer of the steps decreases gradually, and the tube member (4) is inserted by selecting a groove with a slightly larger outer diameter according to the outer diameter.
5. A tube member axial compression test loading device as claimed in claim 4, wherein the middle gap between the tube member (4) and the insertion groove is 0.2 mm-20 mm, and the height of each layer of the groove is 1/100-2 times of the outer diameter of the tube member (4).
6. A pipe member axial compression test loading device as claimed in claim 1, wherein the first hinge member (1) and the second hinge member (2) are matched and hinged at one end, the first hinge member (1) is provided with a convex surface block, the second hinge member (2) is provided with a concave surface block matched with the convex surface block or the first hinge member (1) is provided with a concave surface block, and the second hinge member (2) is provided with a convex surface block matched with the concave surface block.
7. A tube member axial compression test loading unit as claimed in claim 6, wherein said convex surface block is a convex spherical block, said concave surface block is a concave spherical block matching with said convex spherical block, and said first hinge member (1) is ball-hinged with said second hinge member (2).
8. The pipe member axial compression test loading device of claim 6, wherein the convex surface block is a knife-edge surface block, the concave surface block is a concave surface block matched with the knife-edge surface block, and the first hinge member (1) is in knife-hinge connection with the second hinge member (2).
9. The pipe member axial compression test loading device of claim 1, wherein the first hinge member (1) and the connecting plate (3) are fixedly connected through bolts.
CN202010501303.7A 2020-06-04 2020-06-04 Pipe component axial compression test loading device Pending CN113758792A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010501303.7A CN113758792A (en) 2020-06-04 2020-06-04 Pipe component axial compression test loading device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010501303.7A CN113758792A (en) 2020-06-04 2020-06-04 Pipe component axial compression test loading device

Publications (1)

Publication Number Publication Date
CN113758792A true CN113758792A (en) 2021-12-07

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Application Number Title Priority Date Filing Date
CN202010501303.7A Pending CN113758792A (en) 2020-06-04 2020-06-04 Pipe component axial compression test loading device

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