CN216816041U - Vertical observable structural column antiknock test device - Google Patents
Vertical observable structural column antiknock test device Download PDFInfo
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- CN216816041U CN216816041U CN202122454691.0U CN202122454691U CN216816041U CN 216816041 U CN216816041 U CN 216816041U CN 202122454691 U CN202122454691 U CN 202122454691U CN 216816041 U CN216816041 U CN 216816041U
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Abstract
The utility model relates to a vertical observable structural column anti-explosion test device, which comprises an elastic component and a reinforced concrete explosion pit, wherein the reinforced concrete explosion pit can be used for placing a structural column for an anti-explosion performance test of the structural column, and comprises a reinforced concrete structure main body, and a gas pipe penetrating pipe, a front angle steel, a threading pipe, an inner support, a lower enclosing structure, an upper transverse support and an explosion-facing steel plate which are pre-embedded in the reinforced concrete structure main body; the utility model can consider the dead weight of the structural column to simulate the stress state of the structural column more truly, and simultaneously the whole stress process of the structural column in the test can be observed and recorded, thereby meeting the requirement of large equivalent anti-explosion test of the large-size structural column, and the explosion pit can be repeatedly used and is not easy to damage.
Description
Technical Field
The utility model relates to a vertical observable structural column anti-explosion test device, and belongs to the technical field of civil engineering structural column anti-explosion performance research test devices.
Background
In recent years, terrorist attacks and accidental explosions are occurring worldwide, causing serious casualties and economic losses, as well as adverse political and social effects. The structural column is used as a key stressed member of civil engineering building structures such as high-rise buildings, gymnasiums and bridges, and how to prevent the structural column from being seriously damaged and collapsed under the action of explosive load is a great problem which needs to be solved urgently by engineering designers and scientific researchers.
The explosion load is unconventional load, is a strong dynamic load with high peak value and short duration, and the interaction between the explosion shock wave and the structural column is very complex, so the structural column antiknock test becomes one of the main research means for researching the antiknock performance of the structural column. The structural column antiknock test device is a key device for antiknock test, and generally comprises a reinforced concrete matrix (explosion pit), a jack spring device and a support steel frame. The support steel frame is fixed in the explosion pit and is used for supporting the structural column and fixing the positions of sensors for displacement, pressure and the like. The jack spring device applies axial force to the structural column to simulate vertical axial force borne by the column in a real structure, and the counter force of the jack spring device directly acts on the blasting pit.
Therefore, the stress performance of the explosion pit becomes one of key factors influencing the test result, and tests show that because the counter force of a jack spring device in the traditional structural column anti-explosion test device directly acts on the explosion pit, although the reinforcing bars at four corners of the explosion pit are subjected to encryption treatment, the explosion pit still has obvious cracks under the action of multiple explosion loads, the test result is influenced, and the repeated use cannot be carried out for multiple times, so that the waste of manpower, material resources and financial resources is caused.
In addition, because the antiknock test device of traditional structure post adopts generally the level to place, uses the axial force simulation structure post dead weight that jack spring assembly applyed. In an explosion test, due to the fact that the structural column is horizontally placed to cause sight line shielding, cracks on the surface of the structural column are developed under the explosive load, and deformation cannot be directly observed and recorded. And the original stress state of the structural column in the structure cannot be truly simulated by using the mode that the self weight of the structural column is simulated by using the axial force applied by the jack spring device.
In summary, the prior art has the following problems: on one hand, the counter force of the structural column antiknock test device directly acts on the explosion pit, so that the explosion pit is difficult to reuse, and the damage of the explosion pit seriously affects the test result under the condition of large-size structural columns and large-equivalent explosive explosion; on the other hand, the anti-explosion test device for the structural column is horizontally arranged, the original stress state of the structural column in the structure cannot be truly simulated by the mode that the jack spring device applies the axial force, and the surface crack development and deformation of the structural column cannot be directly observed and recorded due to the fact that the view shielding caused by horizontal arrangement is adopted.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vertical observable structural column antiknock test device which not only can truly simulate the stress state of a structural column, but also can observe and record the whole stress process of the structural column, thereby achieving the purpose of recycling the structural column which is difficult to damage.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a vertical observable structural column anti-explosion test device comprises a reinforced concrete explosion pit, a structural column and an elastic component, wherein the structural column and the elastic component are placed in the reinforced concrete explosion pit;
the reinforced concrete explosion pit comprises a reinforced concrete structure main body, wherein the reinforced concrete structure main body comprises a foundation, an explosion pit room and an elastic component placing area, the explosion pit room is vertically arranged on the surface of the foundation, and one side surface of the explosion pit room is an explosion-facing surface; an elastic component placing area is arranged in the foundation, the elastic component placing area is arranged on the same side as the explosion facing surface, an elastic component is arranged in the elastic component placing area, a structural column is fixedly arranged on one side of the explosion pit house, which is provided with the explosion facing surface, and the bottom end of the structural column extends into the elastic component placing area to abut against the elastic component;
the structural columns are arranged vertically to the foundation, and front angle steels are arranged at the contact positions of each side of the structural columns and the pit explosion room;
the structure column is characterized by further comprising an inner support, wherein the inner support comprises an upper end plate, a lower end plate, a left pull rod and a right pull rod, the upper end plate is located at the top of the structure column, the lower end plate is located at the bottom of the structure column, the left pull rod and the right pull rod are respectively located on two sides of the structure column, one end of the upper end plate is connected with one end of the lower end plate through the left pull rod, the other end of the upper end plate is connected with the other end of the lower end plate through the right pull rod, and the left pull rod and the right pull rod are arranged in parallel;
the left pull rod and the right pull rod are respectively penetrated through the front angle steel back explosion surfaces on the sides of the matched structural columns;
a gas pipe penetrating pipe is arranged in the foundation in a penetrating way and is communicated with the elastic component;
as a further preferred aspect of the present invention, the front angle steel includes a left front angle steel and a right front angle steel, and the left front angle steel and the right front angle steel are respectively arranged on both sides of the structural column;
as a further preferred aspect of the utility model, the left front angle steel comprises a left angle steel, pressure gauge seats and a fixing hook, one side of the left angle steel is arranged on one side of the structural column, the other side of the left angle steel is an explosion-facing surface, the explosion-facing surface of the left angle steel is provided with a plurality of pressure gauge seats and a plurality of hexagon bolts, and the pressure gauge seats and the hexagon bolts are alternately welded on the explosion-facing surface of the left angle steel;
welding a plurality of fixing hooks on the back blasting surface of the left angle steel;
as a further preferred aspect of the utility model, the right front angle steel comprises a right angle steel, pressure gauge seats and a fixing hook, one side of the right angle steel is arranged in a manner of being attached to the other side of the structural column, the other side of the right angle steel is an explosion-facing surface, the explosion-facing surface of the right angle steel is provided with a plurality of pressure gauge seats and a plurality of hexagon bolts, and the pressure gauge seats and the hexagon bolts are alternately welded on the explosion-facing surface of the right angle steel;
a plurality of fixing hooks are welded on the back blasting surface of the right angle steel;
as a further preferred option of the utility model, a plurality of threading pipes are pre-embedded in the blasting pit room, and the number of the threading pipes is matched with the number of the pressure gauge seats; the threading pipes are PVC pipes, and each threading pipe is communicated with the detection system by penetrating through the explosion pit room from the center of the back of the pressure gauge seat;
as a further preferred aspect of the present invention, the elastic member is a pneumatic cylinder piston mechanism, one end of which is in contact with the lower end plate, and the other end of which is in contact with the bottom end of the structural column;
the pneumatic cylinder piston mechanism is communicated with the air pipe through pipe;
the inner diameter of a cylinder of the pneumatic cylinder piston mechanism is larger than or equal to 400mm, the bearing pressure of the pneumatic cylinder piston mechanism is larger than or equal to 15Mpa, and the axial force of a piston is larger than or equal to 188 tons;
as a further preference of the utility model, the building further comprises a lower enclosure structure which is arranged at the opening of the elastic component placing area;
the lower enclosure structure comprises a square enclosure steel plate, the size of the square enclosure steel plate is matched with that of an opening of the elastic component placing area, and a plurality of anchoring hooks are welded on the wall surface of the enclosure steel plate facing outwards;
as a further preferable aspect of the present invention, an upper lateral support is covered on the top of the structural column, and comprises an upper lateral steel plate, wherein the upper lateral steel plate is U-shaped, two ends of the U-shaped vertical portion extend outwards, and the extending portion is perpendicular to the U-shaped vertical portion;
the transverse part of the upper transverse steel plate is attached to the top of the structural column, and the extending part of the upper transverse steel plate is attached to the top of the front angle steel in a matching mode;
a hexagon bolt is welded on one surface of the extending part of the upper transverse steel plate, which is opposite to the front angle steel, a plurality of anchoring hooks are welded on the other surface of the extending part, and a plurality of anchoring hooks are also welded on the surface of the transverse part of the upper transverse steel plate, which is opposite to the structural column;
preferably, a left steel plate and a right steel plate are further arranged on the explosion-facing surface of the explosion pit room, the left steel plate is matched with left front angle steel, the right steel plate is matched with right front angle steel, and a plurality of anchoring hooks are welded on the back explosion surfaces of the left steel plate and the right steel plate.
Through the technical scheme, compared with the prior art, the utility model has the following beneficial effects:
1. the inner support in the test device provided by the utility model is combined with the elastic device and the structural column to form a self-balancing system, so that the counter force is not directly acted on the blasting pit, the use durability of the blasting pit is increased, the blasting pit is not easy to damage and can be reused, and the test cost is reduced;
2. in the test device provided by the utility model, the structural column is vertically arranged on the foundation, the influence of the self weight of the structural column is considered, and the stress state of the structural column in the structure is more truly simulated, so that the test result is more accurate;
3. in the test device provided by the utility model, the structural column is vertically arranged on the foundation, and the whole stress process of the structural column under the action of the explosive load can be observed and recorded in a vertical arrangement mode, so that more data are provided for test analysis.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic overall structure of a preferred embodiment provided by the present invention;
FIG. 2 is a side view of FIG. 1 provided by the present invention;
figure 3 is a schematic view of a reinforced concrete structure body of a preferred embodiment provided by the present invention;
fig. 4 a-4 b are schematic diagrams of the hook angle steel structure of the preferred embodiment provided by the present invention, wherein fig. 4a is a schematic diagram of the left hook angle steel structure, and fig. 4b is a schematic diagram of the right front angle steel structure;
fig. 5 is a schematic view of an internal housing of a preferred embodiment provided by the present invention;
FIG. 6 is a schematic view of a lower enclosure of a preferred embodiment provided by the present invention;
FIG. 7 is a schematic view of the upper transverse support structure of the preferred embodiment provided by the present invention;
fig. 8 a-8 b are schematic structural views of a steel plate for a blast surface according to a preferred embodiment of the present invention, wherein fig. 8a is a schematic structural view of a left steel plate, and fig. 8b is a schematic structural view of a right steel plate;
fig. 9 is a schematic diagram of a self-balancing architecture of the inner support provided by the present invention.
In the figure: 100 is an elastic component, 200 is a structural column, 300 is an explosion pit, 311 is a foundation, 312 is an explosion pit room, 313 is an elastic component placing area, 320 is a trachea through pipe, 330 is a front angle steel, 331 is a left front angle steel, 332 is a right front angle steel, 333 is a left angle steel, 334 is a right angle steel, 335 is a pressure gauge seat, 340 is a threading pipe, 351 is an upper end plate, 352 is a lower end plate, 353 is a left pull rod, 354 is a right pull rod, 360 is a lower enclosure structure, 361 is an enclosure steel plate, 370 is an upper transverse support, 371 is an upper transverse steel plate, 380 is an explosion-facing steel plate, 381 is a left steel plate, 382 is a right steel plate, 410 is a hexagon bolt, 420 is an anchoring hook, and 430 is a fixing hook.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present application, it is to be understood that the terms "left side", "right side", "upper part", "lower part", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and that "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.
In the prior art, a structural column anti-explosion test device generally comprises a reinforced concrete base body (explosion pit), a jack spring device and a support steel frame, wherein the counter force of the jack spring device directly acts on the explosion pit, and the explosion pit is easy to have obvious cracks under the action of multiple explosion loads and cannot be reused; meanwhile, the existing structural columns are usually horizontally arranged, so that the sight line is easily shielded, and the deformation cannot be directly observed and recorded. Based on the above-mentioned problem, this application aims at providing a vertical observable structure post antiknock test device.
The test device comprises a self-balancing system, so that the counterforce does not directly act on the explosion pit, the damage degree of the explosion pit is reduced, and the explosion pit can be recycled; meanwhile, the structural column is vertically arranged on the foundation, so that the whole stress process is convenient to observe, and the stress state of the structural column in the test is more truly simulated.
FIG. 1, in conjunction with FIG. 2, illustrates the present application including a reinforced concrete blast hole 300, further including a structural column 200 and a resilient member 100 disposed within the reinforced concrete blast hole; the reinforced concrete explosion pit comprises a reinforced concrete structure main body, as shown in fig. 3, the reinforced concrete explosion pit comprises a foundation 311, an explosion pit room 312 and an elastic component placing area 313, the explosion pit room is vertically arranged on the surface of the foundation, and one side surface of the explosion pit room is an explosion-facing surface; an elastic component placing area is arranged in the foundation, the elastic component placing area is arranged on the same side as the explosion facing surface, an elastic component is arranged in the elastic component placing area, a structural column is fixedly arranged on one side of the explosion pit house, which is provided with the explosion facing surface, and the bottom end of the structural column extends into the elastic component placing area to abut against the elastic component; as shown in fig. 5, the support comprises an upper end plate 351, a lower end plate 352, a left pull rod 353 and a right pull rod 354, wherein the upper end plate is located at the top of the structural column, the lower end plate is located at the bottom of the structural column, the left pull rod and the right pull rod are respectively located at two sides of the structural column, one end of the upper end plate is connected with one end of the lower end plate through the left pull rod, the other end of the upper end plate is connected with the other end of the lower end plate through the right pull rod, and the left pull rod and the right pull rod are arranged in parallel; the left pull rod and the right pull rod are respectively penetrated through the front angle steel 330 back blasting surfaces on the sides of the matched structural columns. As shown in fig. 9, the structural column, the inner support and the elastic device form a self-balancing system in the test device, force is only transmitted in the system, axial counter force of the structural column does not directly act on the frame of the explosion pit any more, when explosion occurs, the explosion pit only bears the shock wave from front to back, and the explosion pit is not easy to damage, so that the repeated use of the test device for large-size structural columns and large-equivalent explosive explosion resistance tests is realized, and the test cost is reduced.
In the preferred embodiment of the application, the elastic component is selected from a pneumatic cylinder piston mechanism, one end of the elastic component is contacted with the lower end plate, and the other end of the elastic component is contacted with the bottom end of the structural column; the pneumatic cylinder piston mechanism is communicated with the air pipe penetrating pipe 320, and appropriate high-pressure air is filled into the pneumatic cylinder piston mechanism through the air pipe penetrating pipe to apply axial force; the arrangement of the air pipe penetrating pipe can also realize that high-pressure air is provided for the pneumatic cylinder piston mechanism at a far position, and the supply of the high-pressure air in the test process is not influenced by explosion shock waves; it should be stated here that, in the present application, the cylinder inner diameter of the pneumatic cylinder piston mechanism is greater than or equal to 400mm, the bearing pressure thereof is greater than or equal to 15Mpa, and the axial force of the piston is greater than or equal to 188 tons, which can fully satisfy the experimental conditions that the structural column bears high axial force and large axial pressure ratio. The reason is that the rigidity of the high-pressure gas is small, the structural column is allowed to generate certain axial deformation in the test process, and the pressure value of the high-pressure gas is fixed by the gas cylinder valve, so that the axial pressure acting on the column can be kept stable and unchanged under the condition of axial deformation of the structural column in the test.
In the application, front angle steel is arranged at the contact position of each side of a structural column and a pit explosion room, because a pressure sensor before test needs to be connected to a test system behind the pit explosion room for debugging through a test lead in a threading pipe 340, the installation of the pressure sensor needs the help of the front angle steel; specifically, as shown in fig. 4 a-4 b, the front angle steel includes a left front angle steel 331 and a right front angle steel 332, and the left front angle steel and the right front angle steel are respectively arranged on two sides of the structural column. The left front angle steel comprises a left angle steel 333, a pressure gauge seat 335 and a fixing hook 430, one side of the left angle steel is arranged by being attached to one side of the structural column, the other side of the left angle steel is an explosion-facing surface, the explosion-facing surface of the left angle steel is provided with a plurality of pressure gauge seats and a plurality of hexagon bolts 410, and the pressure gauge seats and the hexagon bolts are alternately welded on the explosion-facing surface of the left angle steel; and a plurality of fixing hooks are welded on the back blasting surface of the left angle steel. The right front angle steel comprises a right angle steel 334, a pressure gauge seat and a fixing hook, one side of the right angle steel is arranged in a manner of being attached to the other side of the structural column, the other side of the right angle steel is an explosion-facing surface, a plurality of pressure gauge seats and a plurality of hexagon bolts are arranged on the explosion-facing surface of the right angle steel, and the pressure gauge seats and the hexagon bolts are alternately welded on the explosion-facing surface of the right angle steel; and a plurality of fixing hooks are welded on the back explosion surface of the right angle steel. The pressure gauge base is arranged in order to install the pressure sensor on the pressure gauge base through a hexagon bolt before a test, a plurality of threading pipes are pre-embedded in the pit explosion room, and the number of the threading pipes is matched with that of the pressure gauge base; the threading pipe is a PVC pipe, and the test lead passes through the threading pipe and reaches a test system behind the pit explosion room to be communicated with the detection system; the testing system is debugged firstly, and then the pneumatic cylinder piston mechanism is placed in the elastic component placing area and communicated with the air pipe through pipe.
In the foregoing defects related to the prior art, a problem is also mentioned, in which existing structural columns are often horizontally placed and are easy to cause shielding of sight lines, so in the present application, the structural columns are arranged perpendicular to a foundation, that is, a pit explosion room is used for vertically placing the structural columns, the self weight of the structural columns can be considered due to vertical placement, the stress state of the structural columns in a real structure is simulated more truly, in addition, no sight line shielding exists due to vertical placement, a high-speed camera can be erected inside the pit explosion room, the whole stress process of the structural columns under the action of explosive loads can be directly observed and recorded, and more data are provided for experimental analysis; meanwhile, the wire passing pipe for the test wire to run is reserved in the explosion pit room, so that the test wire is prevented from being broken due to the influence of explosion shock waves in the test process, and the signal transmission in the test wire can be stably carried out.
In the test process, the elastic component placing area is easy to be damaged and collapsed under the action of the explosion shock wave, so that a lower enclosing structure 360 shown in fig. 6 is further arranged at the opening of the elastic component placing area; the lower enclosing structure comprises a square enclosing steel plate 361, the size of the square enclosing steel plate is matched with that of the cavity of the elastic component placing area, and a plurality of anchoring hooks 420 are welded on the wall surface of the enclosing steel plate facing outwards. The arrangement of the lower enclosing structure improves the durability of the explosion pit, so that the explosion pit can be repeatedly used. In addition, the bottom end of the structural column is supported during the test.
The bottom end of the structural column needs to provide support, and similarly, the top end of the structural column needs to provide support, and as shown in fig. 7, an upper transverse support 370 is covered on the top of the structural column, and comprises an upper transverse steel plate 371, wherein the upper transverse steel plate is arranged in a U shape, two ends of a vertical part of the U shape extend outwards, and the extending part is perpendicular to the vertical part of the U shape; the transverse part of the upper transverse steel plate is attached to the top of the structural column, and the extending part of the upper transverse steel plate is attached to the top of the front angle steel in a matching mode; a hexagon bolt is welded on one surface of the extending part of the upper transverse steel plate, which is opposite to the front angle steel, a plurality of anchoring hooks are welded on the other surface of the extending part, and a plurality of anchoring hooks are also welded on the surface of the transverse part of the upper transverse steel plate, which is opposite to the structural column. The upper transverse support is arranged to provide support for the top end of the structural column during the test.
As shown in fig. 8 a-8 b, a left steel plate 381 and a right steel plate 382 are further arranged on the explosion facing surface of the explosion pit room, the left steel plate is matched with left front angle steel, the right steel plate is matched with right front angle steel, a plurality of anchoring hooks are welded on the explosion facing surfaces of the left steel plate and the right steel plate, and the anchoring hooks are welded on the explosion facing surfaces of the left steel plate and the right steel plate, the left steel plate is fixed and cast in situ on the left side of the explosion facing surface of the explosion pit room through the anchoring hooks, and the right steel plate is fixed and cast in situ on the right side of the explosion facing surface of the explosion pit room through the anchoring hooks, as explained by the view angle given in fig. 1; the steel plate 380 on the explosion-facing side is used for directly bearing the effect of explosion shock waves, and the plastic deformation of the steel plate can absorb part of energy generated by explosion, so that the energy transmitted to an explosion pit by explosion is smaller, and the durability of the explosion pit is improved.
It should be further noted that the anchoring hooks provided in the present application, as is apparent from the figures, have a U-shaped hook body, and the two vertical end portions of the hook body are bent and extended toward each other.
Finally, the application also provides a test method based on the test device set forth above, which specifically comprises the following steps:
step S1: carrying out concrete formwork support according to the size of the explosion pit, and fixing a gas pipe penetrating pipe, a front angle steel, a threading pipe, an inner support, a lower enclosing structure, an upper transverse support and a steel plate for facing the explosion surface;
step S2: pouring concrete in the concrete model, and curing for 28 days;
step S3: connecting a pressure sensor with a pressure gauge base through a hexagon bolt, connecting the sensor, a data acquisition system and a computer, and debugging signals;
step S4: a pneumatic cylinder piston mechanism is arranged in the elastic component placing area, and the height of the pneumatic cylinder piston mechanism is adjusted to be consistent with the height of the structural column;
step S5: communicating the pre-buried air pipe penetrating pipe with an air cylinder of a pneumatic air cylinder piston mechanism, and filling a high-pressure air source into the air cylinder through the air pipe penetrating pipe;
step S6: the structural column is hung in the blasting pit room, and the position of the structural column is adjusted;
step S7: inflating the pneumatic cylinder piston mechanism through a high-pressure nitrogen cylinder arranged at the far end, and screwing down a gas cylinder valve when a pressure gauge reaches a preset value;
step S8: the elastic component placing area is shielded from the opening end by a steel plate box, and a gap on the upper surface of the explosion pit is sealed by a rubber pad and a clad sheet so as to prevent explosion shock waves from damaging the cylinder and the lead;
step S9: and hoisting the explosive and the detonator on the structural column, checking the pressure of the test system and the pneumatic cylinder piston mechanism, and detonating after the correctness is confirmed.
To sum up, the vertical observable structure post antiknock test device that this application provided can consider the true simulation structure post stress state of structure post dead weight factor, and the record can be observed to the whole process of structure post atress simultaneously, but reuse's not fragile structure post antiknock test device.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "and/or" as used herein is intended to include both the individual components or both.
The term "connected" as used herein may mean either a direct connection between components or an indirect connection between components through other components.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the description, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a vertical observable structural column antiknock test device, includes reinforced concrete blast pit, its characterized in that: the structure column and the elastic component are placed in the reinforced concrete explosion pit;
the reinforced concrete blasting pit comprises a reinforced concrete structure main body, wherein the reinforced concrete blasting pit comprises a foundation, a blasting pit room and an elastic component placing area, the blasting pit room is vertically arranged on the surface of the foundation, and one side surface of the blasting pit room is an explosion facing surface; an elastic component placing area is arranged in the foundation, the elastic component placing area is arranged on the same side as the explosion facing surface, an elastic component is arranged in the elastic component placing area, a structural column is fixedly arranged on one side of the explosion pit house, which is provided with the explosion facing surface, and the bottom end of the structural column extends into the elastic component placing area to abut against the elastic component;
the structural columns are arranged vertically to the foundation, and front angle steels are arranged at the contact positions of each side of the structural columns and the pit explosion room;
the structure column is characterized by further comprising an inner support, wherein the inner support comprises an upper end plate, a lower end plate, a left pull rod and a right pull rod, the upper end plate is located at the top of the structure column, the lower end plate is located at the bottom of the structure column, the left pull rod and the right pull rod are respectively located on two sides of the structure column, one end of the upper end plate is connected with one end of the lower end plate through the left pull rod, the other end of the upper end plate is connected with the other end of the lower end plate through the right pull rod, and the left pull rod and the right pull rod are arranged in parallel;
the left pull rod and the right pull rod are respectively penetrated through the front angle steel back explosion surfaces on the sides of the matched structural columns;
the air pipe penetrating pipe is arranged in the foundation in a penetrating mode and communicated with the elastic component.
2. The vertically observable structural column antiknock test apparatus of claim 1, wherein: the front angle steel comprises a left front angle steel and a right front angle steel, and the left front angle steel and the right front angle steel are respectively arranged on two sides of the structural column.
3. The vertically observable structural column antiknock test apparatus of claim 2, wherein: the left front angle steel comprises a left angle steel, a pressure gauge seat and a fixing hook, one side of the left angle steel is arranged on one side of the structural column in a fit mode, the other side of the left angle steel is an explosion-facing surface, the explosion-facing surface of the left angle steel is provided with a plurality of pressure gauge seats and a plurality of hexagon bolts, and the pressure gauge seats and the hexagon bolts are alternately welded on the explosion-facing surface of the left angle steel;
and a plurality of fixing hooks are welded on the back blasting surface of the left angle steel.
4. The vertically observable structural column antiknock test apparatus of claim 3, wherein: the right front angle steel comprises a right angle steel, a pressure gauge seat and a fixing hook, one side of the right angle steel is arranged in a manner of being attached to the other side of the structural column, the other side of the right angle steel is an explosion-facing surface, a plurality of pressure gauge seats and a plurality of hexagon bolts are arranged on the explosion-facing surface of the right angle steel, and the pressure gauge seats and the hexagon bolts are alternately welded on the explosion-facing surface of the right angle steel;
and a plurality of fixing hooks are welded on the back blasting surface of the right angle steel.
5. The vertically observable structural column antiknock test apparatus of claim 4, wherein: a plurality of threading pipes are pre-buried in the pit explosion room, and the number of the threading pipes is matched with the number of the pressure gauge seats; the threading pipe is PVC pipe, and every threading pipe wears to establish by the back central point of pressure gauge seat and explodes hole room and detecting system and form the intercommunication.
6. The vertically observable structural column antiknock test apparatus of claim 5, wherein: the elastic component is a pneumatic cylinder piston mechanism, one end of the elastic component is in contact with the lower end plate, and the other end of the elastic component is in contact with the bottom end of the structural column;
the pneumatic cylinder piston mechanism is communicated with the air pipe through pipe;
the cylinder inner diameter of the pneumatic cylinder piston mechanism is larger than or equal to 400mm, the bearing pressure of the pneumatic cylinder piston mechanism is larger than or equal to 15MPa, and the axial force of the piston is larger than or equal to 188 tons.
7. The vertically observable structural column antiknock test apparatus of claim 6, wherein: the lower enclosing structure is arranged at the opening of the elastic component placing area;
the lower enclosing structure comprises a square enclosing steel plate, the size of the opening of the elastic component placing area is matched with that of the opening of the elastic component placing area, and a plurality of anchoring hooks are welded on the wall surface of the enclosing steel plate facing outwards.
8. The vertically observable structural column antiknock test apparatus of claim 7, wherein: an upper transverse support is covered at the top of the structural column and comprises an upper transverse steel plate, the upper transverse steel plate is arranged in a U shape, two end parts of a U-shaped vertical part extend outwards, and the extending part is vertical to the U-shaped vertical part;
the transverse part of the upper transverse steel plate is attached to the top of the structural column, and the extending part of the upper transverse steel plate is attached to the top of the front angle steel in a matching mode;
a hexagon bolt is welded on one surface of the extending part of the upper transverse steel plate, which is opposite to the front angle steel, a plurality of anchoring hooks are welded on the other surface of the extending part, and a plurality of anchoring hooks are also welded on the surface of the transverse part of the upper transverse steel plate, which is opposite to the structural column.
9. The vertically observable structural column antiknock test apparatus of claim 8, wherein: still lay left steel sheet and right steel sheet on the face of blasting to the explosion of exploding the hole room, left steel sheet matches left front angle steel, and right steel sheet matches right front angle steel, explodes the face welding a plurality of anchor hooks back at left steel sheet and right steel sheet.
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| CN202122454691.0U CN216816041U (en) | 2021-10-12 | 2021-10-12 | Vertical observable structural column antiknock test device |
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| CN202122454691.0U CN216816041U (en) | 2021-10-12 | 2021-10-12 | Vertical observable structural column antiknock test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001987A (en) * | 2021-10-12 | 2022-02-01 | 东南大学 | Vertical observable structural column anti-explosion test device and test method |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001987A (en) * | 2021-10-12 | 2022-02-01 | 东南大学 | Vertical observable structural column anti-explosion test device and test method |
| CN114001987B (en) * | 2021-10-12 | 2024-06-18 | 东南大学 | Vertical observable structural column antiknock test device and test method |
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