CN216386644U - Explosion test platform of stand component - Google Patents
Explosion test platform of stand component Download PDFInfo
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- CN216386644U CN216386644U CN202122355320.7U CN202122355320U CN216386644U CN 216386644 U CN216386644 U CN 216386644U CN 202122355320 U CN202122355320 U CN 202122355320U CN 216386644 U CN216386644 U CN 216386644U
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- 238000007789 sealing Methods 0.000 claims description 5
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Abstract
The utility model relates to the technical field of anti-explosion tests of column members and discloses an explosion test platform of a column member, which comprises a base, columns and a cross beam, wherein the columns and the cross beam are arranged on the base at intervals; one end of the cross beam can be connected to the upper part of the reaction column in a vertically rotating manner, and the other end of the cross beam is arranged at the upper end of the upright column; the base is provided with a pull rod used for applying downward acting force to the cross beam, the pull rod is provided with a strain detection piece used for detecting axial strain of the pull rod, so that strain of the pull rod is detected, the axial force applied to the end part of the stand column by the pull rod is calculated, the base is provided with a fixing piece horizontally arranged at an interval with the stand column, the fixing piece is provided with a displacement sensor, displacement generated in the horizontal direction in the explosion process of the stand column is detected, and then the action relation between deformation of the stand column and the axial force borne by the stand column under the action of explosive load is established.
Description
Technical Field
The utility model relates to the technical field of explosion-proof tests of column members, in particular to an explosion test platform of a column member.
Background
The upright post is a common structural member and is used as a bearing structure of a building. The previous explosion accidents show that the failure of the bearing structure under the action of impact/explosion load is the root cause of the collapse and damage of the structure.
Numerical simulation and theoretical analysis provide an effective means for structural antiknock, but the accuracy of the numerical simulation and theoretical analysis depends on the reasonability of a calculation model and constitutive relation, and an antiknock test is an important means for revealing a dynamic response and failure mechanism of a structure, so that accurate acquisition of input parameters and output parameters in the antiknock test process is a premise for ensuring the accuracy of the calculation model and the constitutive relation.
However, in the current stand column explosion test platform, the influence of the axial force on the anti-explosion performance of the stand column is not considered, so that the calculation model established according to the input and output parameters of the explosion test is inaccurate.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide an explosion test platform of a stand column component, which aims to apply axial force to a stand column and obtain test data of the magnitude of the axial force and the horizontal displacement of the stand column in a test process so as to establish an action relation between the horizontal displacement of the stand column under the action of explosive load and the axial force applied to the stand column.
In order to solve the technical problem, the utility model provides an explosion test platform of a stand column component, which comprises a base, a stand column, a reaction column and a cross beam, wherein the base is provided with a base seat; the upright post and the reaction column are arranged on the base at intervals, one end of the cross beam is connected to the upper part of the reaction column in a vertically rotatable manner, and the other end of the cross beam is arranged at the upper end of the upright post;
the base is provided with a pull rod used for applying a downward acting force to the cross beam, the pull rod is positioned between the reaction column and the stand column, and the pull rod is provided with a strain detection piece used for detecting the axial strain of the pull rod;
the base is fixedly connected with fixing pieces arranged at intervals with the stand columns, and displacement sensors used for detecting horizontal displacement of the stand columns are arranged on the fixing pieces.
As a preferred scheme, the lower end of the pull rod is fixedly connected to the base, a through hole matched with the pull rod is formed in the cross beam, and the upper end of the pull rod penetrates through the through hole and is connected with a fixing block;
the pull rod is sleeved with an elastic piece, and the elastic piece is positioned between the lower end face of the fixed block and the upper end face of the cross beam;
the strain detection member is located below the cross member.
Preferably, the fixing piece comprises a first explosion-proof wall and a second explosion-proof wall which are oppositely arranged on the base at intervals, and the upright column is arranged between the first explosion-proof wall and the second explosion-proof wall;
one side of the first explosion-proof wall opposite to the upright post is fixedly connected with a connecting plate, and the other end of the connecting plate is fixedly connected to one side of the second explosion-proof wall opposite to the upright post; the displacement sensor is arranged on the connecting plate, and the detection end of the displacement sensor abuts against the side wall of the upright post.
Preferably, the connecting plates are arranged at intervals along the axial direction of the upright column, and each connecting plate is provided with the displacement sensor.
Preferably, a plurality of pressure sensors are arranged on one side of the first explosion-proof wall and/or the second explosion-proof wall, which is away from the reaction column, the pressure sensors are arranged at positions close to the upright column, and the pressure sensors are arranged at intervals along the height direction of the upright column.
Preferably, elastic sealing bodies are filled between the first blast-proof wall and the upright post and between the second blast-proof wall and the upright post.
Preferably, one end of the first explosion-proof wall, which is far away from the upright post, is provided with a first guard plate extending towards the direction of the reaction column; and a second guard plate extending towards the direction of the reaction column is arranged at one end, far away from the upright column, of the second explosion-proof wall.
Compared with the prior art, the explosion test platform of the upright post member has the advantages that:
the explosion test platform of the upright post component comprises a base, an upright post, a reaction column and a cross beam; the upright post and the reaction column are arranged on the base at intervals, one end of the cross beam can be connected to the upper part of the reaction column in a vertically rotating manner, and the other end of the cross beam is arranged at the upper end of the upright post; the axial force applied by the cross beam to the upright post can be obtained by estimating or weighing the cross beam in advance; the base is provided with a pull rod used for applying a downward acting force to the cross beam, the pull rod is positioned between the reaction column and the stand column, and the pull rod is provided with a strain detection piece used for detecting the axial strain of the pull rod; the strain of the pull rod is detected through the strain detection piece, the axial force applied to the end part of the upright post by the pull rod is calculated according to Hooke's law and a lever principle, and the sum of the axial force applied to the end part of the upright post by the pull rod and the axial force applied to the upright post by the cross beam is the total axial force borne by the upright post; fixedly connected with and stand interval arrangement's mounting on the base is equipped with displacement sensor on, displacement sensor can detect when the stand receives the explosive load effect, under the effect of total axial force, the produced displacement of stand horizontal direction, and then establishes the action relation between the deformation of stand and the total axial force that the stand received under the explosive load effect.
Drawings
FIG. 1 is a schematic illustration of an explosion testing platform for a column member according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a backface of a fastener;
FIG. 3 is a schematic illustration of the detonation face of the mount;
FIG. 4 is a schematic structural view of a reaction column and a cross-beam;
FIG. 5 is a schematic structural view of the column;
in the figure, 1, a base; 2. a column; 21. a column base; 3. a reaction column; 31. supporting steel; 4. A cross beam; 5. a pull rod; 51. a strain detection member; 52. a fixed block; 53. an elastic member; 6. a fixing member; 61. a first blast wall; 611. a first steel plate; 62. a second blast wall; 621. a second steel plate; 63. a first guard plate; 64. a second guard plate; 65. a connecting plate; 7. a displacement sensor; 8. a pressure sensor; 9. an explosive; 91. an explosive fixing rod.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
As shown in fig. 1, a preferred embodiment of the explosion test platform of the column member of the present invention includes a base 1, a column 2, a reaction column 3, and a beam 4; the upright post 2 and the reaction column 3 are arranged on the base 1 at intervals, one end of the cross beam 4 can be hinged to the upper part of the reaction column 3 in a vertically rotating manner, and the other end of the cross beam 4 is arranged at the upper end of the upright post 2; by estimating or weighing the cross beam 4 in advance, the downward acting force exerted by the cross beam 4 on the upright 3 can be obtained; the base 1 is provided with a pull rod 5 for applying a downward acting force to the cross beam 4, the pull rod 5 is positioned between the reaction column 3 and the upright column 2, and the pull rod 5 is provided with a strain detection piece 51 for detecting the axial strain of the pull rod 5; the base 1 is fixedly connected with a fixing piece 6 which is arranged at an interval with the upright post 2, and the fixing piece 6 is provided with a displacement sensor 7 for detecting the horizontal displacement of the upright post 3.
Specifically, the lower end of the reaction column 3 is fixedly connected to the base 1, the upright columns 2 and the reaction column 3 are horizontally arranged at intervals, the lower portion of the upright column 2 is inserted into the base 1, the base 1 is a reinforced concrete base, the lower end of the reaction column 3 is fixedly connected to the base 1, in order to increase the bending resistance of the reaction column 3, a plurality of steel supports 31 which are obliquely arranged with the base 1 are arranged on the base 1 at intervals along the circumferential direction of the reaction column 3, the steel supports 31 can further enable the reaction column 3 to be stable and enable the reaction column 3 to be in a vertical state, and one end of the cross beam 4 is hinged to the upper portion of the side wall of the reaction column 3 through a directional spherical hinge; the other end of the cross beam 4 is detachably connected with the end part of the upper end of the upright post 2 through a bolt; the pull rod 5 is a high-strength steel pull rod, the lower end of the pull rod 5 is anchored on the base 1, the strain detection piece 51 is a resistance strain gauge adhered to the surface of the pull rod 5, the resistance strain gauge is in the prior art, the strain detection piece is connected with the data acquisition device through at least one of a data line or a wireless communication module, such as a WIFI communication module, a GPRS communication module or a Bluetooth communication module, and the like, and the strain detection piece acquires tensile strain data epsilon detected by the corresponding resistance strain gauge every 0.001 millisecond by adjusting the sampling frequency of the data acquisition devicei. For subsequent calculation and statistical analysis in combination with the known modulus of elasticity of the tie rod 5, the known cross-sectional area a and the known horizontal distance of the axis of the tie rod 5 from the reaction column 3, the strain of the tie rod 5 detected by the strain detecting member 51 and the axial force exerted by the tie rod 5 on the end of the upright 2 are calculated according to hooke's law and the principle of leverage, obtaining that the tie rod 5 is not simultaneously activeAxial force data provided for the column 2; adding the downward acting force applied by the cross beam 4 to the upright column 3 and the axial acting force data provided by the pull rod 5 for the upright column 2 at different moments to obtain the total axial force borne by the upright column 2; preferably, the pull rod 5 is arranged perpendicular to the cross beam 5, so as to determine the horizontal distance between the axis of the pull rod 5 and the reaction column 3;
the displacement sensor 7 can detect the displacement of the upright column 2 in the horizontal direction in the explosion process, so that the horizontal displacement data of the upright column 2 under the action of the explosive load is obtained, and the action relation between the horizontal displacement of the upright column 2 and the total axial force borne by the upright column 2 under the action of the explosive load is further established.
Wherein, for realizing that pull rod 5 applys decurrent effort to crossbeam 4, there are a plurality kinds upper end of pull rod 5 and the connected mode between crossbeam 4, in this embodiment, be equipped with on crossbeam 4 with pull rod 5 phase-match and along the through-hole of upper and lower direction extension, pull rod 5's upper end is passed the through-hole and is connected with fixed block 52, the cover is equipped with elastic component 53 on pull rod 5, elastic component 53 is located between fixed block 52 and the crossbeam 4, strain detection spare 51 is located the below of crossbeam 4.
Specifically, as shown in fig. 1, the reaction force column 3 and the explosive 9 of the present embodiment are respectively disposed on the left and right sides of the column 2, after the explosive 9 is detonated, the column 2 is bent and deformed toward one side of the reaction force column 3 under the action of the explosive shock wave, the upper end of the column 3 applies an axial pressure to the beam 4 along the axial direction of the beam 4 and toward the reaction force column 3, the middle of the beam 4 is bent downward under the action of the axial pressure, a compression spring is disposed between the fixed block 52 and the upper end surface of the beam, and after the middle of the beam 4 is bent downward, the compression spring can continuously apply a downward acting force to the beam 4, so that the setting of the compression spring enables a tester to flexibly adjust the magnitude of the axial acting force borne by the column 2 during the explosion process by setting different sets of tension rods and compression springs with different compression strengths according to the test requirements, and guarantees are provided for researching relevant parameters of different time points of the whole explosion process.
In this embodiment, the fixing block 52 is a nut, the nut is screwed to the pull rod 5, and the compression force of the compression spring can be adjusted by adjusting the distance between the nut and the cross beam 4; a plurality of tie rods 5 are provided at intervals along the longitudinal direction of the cross beam 4.
In this embodiment, as shown in fig. 2, the fixing member 6 includes a first blast wall 61 and a second blast wall 62 which are oppositely arranged on the base at intervals, and the pillar is disposed between the first blast wall 61 and the second blast wall 62; one side of the first explosion-proof wall 61 opposite to the upright post 2 is fixedly connected with a connecting plate 65, and the other end of the connecting plate 65 is fixedly connected to one side of the second explosion-proof wall 62 opposite to the upright post 2; the displacement sensor 7 is provided on the link plate 65, and the detection end of the displacement sensor 7 abuts on the side wall of the pillar 2.
Specifically, as shown in fig. 1, the explosive 9 in this embodiment is disposed on the right side of the pillar 2, the opposite surfaces of the explosion-proof wall 61 and the explosion-proof wall 62 to the explosive 9 are explosion-facing surfaces, and the opposite surfaces of the explosion-proof wall 61 and the explosion-proof wall 62 to the reaction column 3 are explosion-backing surfaces, in this embodiment, the connecting plate 65 is disposed on the explosion-backing surfaces of the explosion-proof wall 61 and the explosion-proof wall 62, the housing of the displacement sensor 7 is fastened to the connecting plate 65, and the detection rod of the displacement sensor 7 abuts against the side wall of the pillar 2 on the side away from the explosive 9, so as to prevent the explosion shock wave from damaging the displacement sensor 7.
In this embodiment, connecting plate 65 is equipped with a plurality ofly along the axial interval of stand, all is equipped with displacement sensor 7 on each connecting plate 65, and a plurality of displacement sensor 7 can detect stand 2 along the displacement change condition of stand direction of height under the effect of explosion shock wave, have further improved experimental accuracy. The displacement sensor 7 is a conventional technology, and has various embodiments, preferably a slide wire resistance type displacement meter, which can be connected to a data acquisition device through a data wire or a wireless communication module, such as at least one of a WIFI communication module, a GPRS communication module, or a bluetooth communication module, and acquire lateral displacement data detected by the corresponding displacement sensor 7 every 0.001 ms by adjusting the sampling frequency of the data acquisition device, and automatically record deflection corresponding to different times, thereby obtaining a deflection-time relationship curve of the column 2 in the test process.
In this embodiment, as shown in fig. 3, a pressure sensor 8 is disposed on a side wall of one side of the first explosion-proof wall 61 and/or the second explosion-proof wall 62 away from the reaction column 3, the pressure sensor 8 is disposed at a position close to the column 2, and a plurality of pressure sensors 8 are disposed at intervals along the height direction of the column 2. The pressure sensors 8 can record overpressure time-course curves of the explosion shock waves to obtain the non-uniform distribution condition of the explosion shock waves along the column height direction of the column member, the pressure sensors 8 can record the overpressure time-course curves of the explosion shock waves and the axial force borne by the column 3 to be used as input parameters of an explosion test together, and the influence of explosion load distribution characteristics on the dynamic response and the failure mode of the column 2 is further analyzed.
The pressure sensor 8 is connected to the data acquisition device through a data line or a wireless communication module, such as at least one of a WIFI communication module, a GPRS communication module, or a bluetooth communication module, and acquires explosion shock wave overpressure data at corresponding positions every 0.001 ms by adjusting the sampling frequency of the data acquisition device, and automatically records overpressure time-course curves corresponding to different times, thereby obtaining overpressure-time relationship curves at different heights of the column 2 during the test.
In this embodiment, the elastic sealing body is filled in the clearance between first blast wall 61 and stand 2 and the clearance between second blast wall 62 and stand 2, and the setting of elastic sealing body can prevent that the blast shock wave from revealing, further improves test data's accuracy, and is concrete, and the elastic sealing body is the sheet rubber.
In this embodiment, a first steel plate 611 is arranged on a side wall of the first blast wall 61 on a side away from the reaction column 3; and a second steel plate 621 is arranged on the side wall of the second explosion-proof wall 62 on the side away from the reaction column 3. The arrangement of the first steel plate 611 and the second steel plate 621 prevents damage to the explosion-facing surface of the first explosion-proof wall 61 and the explosion-facing surface of the second explosion-proof wall 62 during explosion.
In this embodiment, a first guard plate 63 extending toward the reaction column 3 is disposed at one end of the first explosion-proof wall 61 away from the column 2, and a second guard plate 64 extending toward the reaction column 3 is disposed at one end of the second explosion-proof wall 62 away from the column 2.
Specifically, first blast wall 61 and first backplate 63 are integrated into one piece's first L shape superhigh intensity concrete protection wall, and second blast wall 62 and second backplate 64 are integrated into one piece's second L shape superhigh intensity concrete protection wall, and two blocks of superhigh intensity concrete protection walls enclose to call U type seal structure, and displacement sensor 7 sets up in U type seal structure, can prevent that the blast shock wave from diffracting the destruction to displacement sensor 7.
In this embodiment, as shown in fig. 5, a column base 21 is disposed at the bottom of the column 2, the column base 21 is clamped in a foundation pit reserved in the base 1, the column base 21 and the beam 4 form a fixed constraint on the column 2 and make the column in a vertical state, the column 2 preferably has an equal cross section, and the cross section of the column 2 preferably has a circular, square or rectangular shape.
It should be noted that, in this embodiment, the axial force data N applied by the pull rod 5 to the column 2 may be obtained by calculation based on the stress-strain relationship of hooke's law and the lever principle, taking four pull rods 5 as an example, specifically:
from left to right, the vertical acting force provided by each pull rod 5 is ni(i＝1,2,3,4)：
ni＝εiEsA formula (1);
the axial force applied by all four tie rods 5 to the upright 2 is n:
n＝∑nidiformula (2);
substituting formula (1) into formula (2) can obtain the axial acting force n applied to the upright post 2 by all four pull rods 5, wherein EsIs the modulus of elasticity of the tie rod 5, A is the cross-sectional area of the tie rod 5, diThe horizontal distance between the axis of the pull rod 5 and the reaction column 3 is a known quantity epsiloniThe tensile strain of the ith left-to-right tie rod 5 detected for the corresponding resistance strain gauge 51.
The total axial force to which the column 2 is subjected is N:
n + G/2 formula (3)
Wherein G is the gravity of the beam 4.
An embodiment of a method of explosion testing a column member includes the steps of,
s1, arranging an explosion test platform of the upright post component, and arranging an explosive 9 at a position which is separated from the upright post 2 by a set distance;
s2, detonating the explosive;
specifically, the explosive 9 is preferably TNT spherical or columnar explosive, the explosive is erected at the position of the center of the upright post 2 at a certain distance from the upright post 2 through an explosive supporting rod 91, and the axial horizontal distance between the explosive 9 and the upright post 2 can be determined according to test requirements and by combining the proportional distance of the explosive and the factors such as the material, the length and the cross section size of the upright post 2. The detonation of the explosive has various embodiments, so as to ensure the safety of the test and not influence the smooth proceeding of the test. For example, a No. 4 copper electric detonator can be used for long-distance central detonation, and after the explosive is detonated, the explosive load is mainly applied to the detonation facing surface of the upright post 2; in addition, the explosive loads with different proportional explosion distances can be obtained by changing the mass of the explosive, and non-uniform explosion effects with different sizes are exerted.
S3, obtaining axial strain data of the pull rod 5 in the explosion process through the displacement sensor 7, and obtaining horizontal displacement data of the upright post 2 in the explosion process through the strain detection piece 51;
step S4, calculating the total axial force acting on the column 2 according to the axial strain data;
in step S5, the relationship between the horizontal displacement of the column 2 and the total axial force is obtained from the horizontal displacement data and the total axial force data of the column 2.
Specifically, the data acquisition and analysis device acquires tensile strain data epsilon of the pull rod 5 monitored by the resistance strain gauge at different moments when the stand column 2 is under the action of explosive loadiAnd the lateral displacement of the uprights 2 monitored by the respective displacement sensors 7, for the subsequent known modulus of elasticity E with respect to the tie-rods 5sKnown cross-sectional area a and known horizontal distance d of the axis of each tie rod 5 from the reaction force column 3iThe axial acting force data n provided by all the pull rods 5 for the upright post 2 at different moments are obtained by combining calculation and statistical analysis, so that the upright post 2 at different moments under the action of explosive load is obtainedThe axial force corresponding to the lateral displacement and the deflection-time relation of the upright post 2 under the combined action of the explosive load and the axial force are used for quantitatively judging the influence of the axial force on the anti-explosive bearing capacity of the upright post, and further establishing the action relation between the horizontal displacement of the upright post 2 under the action of the explosive load and the axial force borne by the upright post 2. The bearing capacity of the upright post 2 can be reasonably utilized, the engineering antiknock design is correctly guided, the test effect is improved, and the test cost is saved.
After the step S2, obtaining distribution data of the explosion shock wave along the column height direction of the upright column 2 by the pressure sensor 8, and obtaining an explosion shock wave overpressure time-course curve according to the distribution data; step S5 further includes obtaining a variation relationship between the horizontal displacement of the column 2 and the total axial force and the explosion shock wave according to the horizontal displacement data, the total axial force data, and the overpressure time-course curve of the explosion shock wave of the column 2.
Specifically, in step S4, the calculation formula of the total axial force acting on the column 2 is calculated from the axial strain data as follows:
N＝d+G/2；
where N is the total axial force acting on the column 2, E is the modulus of elasticity of the tie rod 5, a is the cross-sectional area of the tie rod 5, a horizontal distance between the axis of the tie rod 5 and the reaction column 3, a tensile strain of the tie rod 5 detected by the resistance strain gauge 51, d is a horizontal distance between the column 2 and the reaction column 3, and G is the weight of the cross beam 4.
It should be noted that other embodiments of the explosion test method for a column member of the present invention are substantially the same as those of the above-mentioned other embodiments of the explosion test platform for a column member, and are not described in detail herein.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (7)
1. An explosion test platform of a stand column component is characterized by comprising a base (1), a stand column (2), a reaction column (3) and a cross beam (4); the upright post (2) and the reaction column (3) are arranged on the base (1) at intervals, one end of the cross beam (4) can be connected to the upper part of the reaction column (3) in a vertically rotating manner, and the other end of the cross beam (4) is arranged at the upper end of the upright post (2);
the base (1) is provided with a pull rod (5) used for applying a downward acting force to the cross beam (4), the pull rod (5) is positioned between the reaction column (3) and the upright column (2), and the pull rod (5) is provided with a strain detection piece (51) used for detecting the axial strain of the pull rod (5);
the base (1) is fixedly connected with fixing pieces (6) arranged at intervals on the stand column (2), and displacement sensors (7) used for detecting the horizontal displacement of the stand column (2) are arranged on the fixing pieces (6).
2. The explosion test platform for the column component according to claim 1, wherein the lower end of the pull rod (5) is fixedly connected to the base (1), the cross beam (4) is provided with a through hole matched with the pull rod (5), and the upper end of the pull rod (5) penetrates through the through hole and is connected with a fixed block (52);
an elastic piece (53) is sleeved on the pull rod (5), and the elastic piece (53) is positioned between the lower end face of the fixed block (52) and the upper end face of the cross beam (4);
the strain detection member (51) is located below the cross beam (4).
3. The explosion test platform of a column member according to claim 1 or 2, characterized in that the fixing member (6) comprises a first explosion-proof wall (61) and a second explosion-proof wall (62) which are oppositely arranged on the base (1) at intervals, and the column (2) is arranged between the first explosion-proof wall (61) and the second explosion-proof wall (62);
one side of the first explosion-proof wall (61) opposite to the upright post (2) is fixedly connected with a connecting plate (65), and the other end of the connecting plate (65) is fixedly connected to one side of the second explosion-proof wall (62) opposite to the upright post (2); the displacement sensor (7) is arranged on the connecting plate (65), and the detection end of the displacement sensor (7) abuts against the side wall of the upright post (2).
4. The explosion test platform of a column member according to claim 3, wherein the connecting plate (65) is provided in plurality at intervals along the axial direction of the column, and the displacement sensor (7) is provided on each connecting plate (65).
5. The explosion test platform of a column member according to claim 3, characterized in that a side of the first explosion-proof wall (61) and/or the second explosion-proof wall (62) facing away from the reaction column (3) is provided with a pressure sensor (8), the pressure sensor (8) is arranged at a position close to the column (2), and the pressure sensors (8) are arranged at intervals along the height direction of the column (2).
6. The explosion test platform of a column member according to claim 3, wherein elastic sealing bodies are filled between the first explosion-proof wall (61) and the column (2) and between the second explosion-proof wall (62) and the column (2).
7. The explosion test platform of a column member according to claim 3, wherein one end of the first explosion-proof wall (61) far away from the column (2) is provided with a first guard plate (63) extending towards the reaction column (3); and a second guard plate (64) extending towards the reaction column (3) is arranged at one end, far away from the upright column (2), of the second explosion-proof wall (62).
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| CN202122355320.7U CN216386644U (en) | 2021-09-27 | 2021-09-27 | Explosion test platform of stand component |
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| CN202122355320.7U CN216386644U (en) | 2021-09-27 | 2021-09-27 | Explosion test platform of stand component |
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| CN216386644U true CN216386644U (en) | 2022-04-26 |
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2021
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