CN109916706A - A kind of experimental rig of the clamped component capability of antidetonance of concrete - Google Patents
A kind of experimental rig of the clamped component capability of antidetonance of concrete Download PDFInfo
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- CN109916706A CN109916706A CN201910186994.3A CN201910186994A CN109916706A CN 109916706 A CN109916706 A CN 109916706A CN 201910186994 A CN201910186994 A CN 201910186994A CN 109916706 A CN109916706 A CN 109916706A
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Abstract
The present invention relates to a kind of experimental rigs of the clamped component capability of antidetonance of concrete, locator is hung including support base, fixing seat, the fixed lid of component and explosive, support base includes four base support units, and the cantilever of four base support units is connected and fixed by connecting tube makes four base support units form the square test stand of upper surface outer profile；Fixing seat includes backing plate and support, and support is equipped with semi-circular member mounting groove, and the fixed lid of component is equipped with above support, is equipped with a concrete component to be measured between two supports to setting on two adjacent backing plates.The application can realize capability of antidetonance test of the different component under same Blast Loads, the center that explosive can be fixed on test stand by locator is hung by explosive, explosive open it is quick-fried after it is identical to the effect of each concrete component to be measured, overcome test error caused by the discreteness because of explosive pharmacological property itself.
Description
Technical field
The present invention relates to civil engineering component testing and explosion measuring technology, especially a kind of clamped component antiknock of concrete
The experimental rig of performance.
Background technique
Structural test is the correlated performance for probing into structure under different load actions, is exploded as a kind of special load,
It is mainly characterized by the local excitation of shock wave in the short time, the different static(al) properties with structure dead load, also different from earthquake load
The full structural excitation of dynamic load.Explosion wave not only results in the destruction of building structure, also will cause life, property it is great
Therefore loss carries out stress shock response research of the concrete structure member under Blast Load and has great importance.
In the clamped component capability of antidetonance research of concrete, for identical dose explosive act on lower different cross section shape,
Different sizes, different slenderness ratio, different concrete strength components carry out capability of antidetonance research, determine that the optimal ratio of reinforcement, length are thin
Than, cuff ratio (i.e. the ratio of thickness of steel pipe and cross section size), engineering application value with higher.But due to
Explosive itself has the discreteness of pharmacological property, and density variation caused by the operating error in powder column fusion-casting process, volume difference
Pharmacological property can also be had an impact, while being influenced by the various aspects factor such as fire point position, burst time, air humidity, wind speed,
Even if the shock wave overpressure that detonation of homogeneous does not generate also has bigger difference, meeting under identical dose, identical test environment
Seriously affect the accuracy of pyroshock test research.
Summary of the invention
The purpose of the present invention is to provide a kind of experimental rigs of the clamped component capability of antidetonance of concrete, for realizing difference
Capability of antidetonance test of the component under same Blast Loads.
To solve the above-mentioned problems, the present invention provides a kind of experimental rig of clamped component capability of antidetonance of concrete, including
The fixed lid of support base, fixing seat, component and explosive hang locator, and the support base includes four base support units, described
Base support unit includes being welded by square steel tube and support frame that upper surface outer profile is square, phase on support frame as described above
Adjacent two lateral surfaces are outward extended with the cantilever for being connected and fixed, and the cantilever of four base support units passes through connecting tube
Being connected and fixed makes four base support units form the square test stand of upper surface outer profile, the cantilever and described
It is equipped with multiple connecting holes in connecting tube and is bolted to connection, by the connection for adjusting the cantilever and the connecting tube
Position can adjust the side length of the test stand；The fixing seat includes backing plate and support, and the backing plate is fixed on the branch
The upper surface of support, the support are fixedly linked by bolt and the backing plate, support frame as described above, and the support is equipped with semicircle
Shape component mounting groove, there are two the semi-circular member installations on the support and two supports for installation on each backing plate
The center line of slot is mutually perpendicular to；The component fixation is installed to cover above the support, two on two adjacent backing plates
One concrete component to be measured is installed between a support to setting；Explosive suspension locator include support portion and
Horizontal hanging stick, the horizontal hanging stick be equipped with for explosive is hung on support frame as described above center and with concrete structure to be measured
The hook of the identical position of part mounting height.
The experimental rig of the clamped component capability of antidetonance of concrete provided by the invention also has following technical characteristic:
Further, the cantilever and the connecting tube are square steel tube, and the outer diameter of the connecting tube is less than the interior of the cantilever
Diameter；Fine sand is also filled in the internal cavities of support frame as described above, the cantilever and the connecting tube.
Further, fixed cover of the component is equipped with semicircle structure corresponding with the semi-circular member mounting groove on the support
Part fixing groove, the fixed lid of the component are fixedly linked with the support by bolt and fix cylindrical concrete component to be measured
Between the support and the fixed lid of the component.
Further, the fixed lid of the component includes two I-shaped steel bases and a top plate, two I-shaped steel bases
Lower wing plate is fixedly linked by bolt and the support, and the upper flanges of two I-shaped steel bases is equipped with connecting hole, and two
The I-shaped steel base passes through double end standing screw respectively and is connected with the top plate and is fixed on rectangle concrete component to be measured
Between the support and the top plate.
Further, the both ends of the double end standing screw are also worn respectively is fixed with for fixing concrete component to be measured
Side rivet clasp angle steel, be also folded with rubber slab between the rivet clasp angle steel and the side of concrete component to be measured.
Further, the support portion of the explosive suspension locator includes pedestal and double threaded screw, and the pedestal is equipped with
Threaded hole, the lower end of the double threaded screw are fixedly linked with the pedestal by threaded hole；The spiral shell of the upper end of the double threaded screw
Line section is equipped with three-way connector, and one end of the horizontal hanging stick and the three-way connector are connected through a screw thread fixation, described
The other end of horizontal hanging stick is equipped with the block for preventing hanging ring from skidding off the horizontal hanging stick, and the hook is suspended on described by lifting rope
On hanging ring.
Further, graduation mark is also carved on the horizontal hanging stick in order to adjust the position of the hanging ring.
Further, the center of concrete component to be measured and away from being also arranged with fixed ring at the one third of end, it is described solid
Determining ring can be used for installing explosion wave superpressure tester, be also equipped with foil gauge on concrete component to be measured.
The invention has the following beneficial effects: the upper surface outer profiles formed by using four base support unit spliceds
Square test stand can install four identical or different concrete components to be measured, it can be achieved that not simultaneously on the support frame
Capability of antidetonance test of the isomorphic product under same Blast Loads；Explosive can be fixed on examination by hanging locator by explosive
Test the center of frame, explosive open it is quick-fried after it is identical to the effect of each concrete component to be measured, overcome discrete because of explosive pharmacological property itself
Test error caused by property；When four base support unit spliceds examination can be adjusted by adjusting the link position of cantilever and connecting tube
The side length of frame, assembly easy to disassemble are tested, and can be carried out a certain range of length-width ratio and adjust, meets different draw ratio sizes
The test of concrete component to be measured needs, and significantly increases the versatility and convenience of device.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the base support unit in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the support base in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the fixing seat in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the experimental rig in one embodiment of the invention；
Fig. 5 is the top view of the experimental rig in Fig. 4；
Fig. 6 is the front view of the experimental rig in Fig. 4；
Fig. 7 is the structural schematic diagram of the experimental rig in another embodiment of the present invention；
Fig. 8 is the partial enlarged view in the portion A in Fig. 7；
Fig. 9 is the top view of the experimental rig in Fig. 7；
Figure 10 is the front view of the experimental rig in Fig. 7；
Figure 11 is the partial enlarged view in the portion B in Figure 10；
Figure 12 is the structural schematic diagram of the explosive suspension locator in the embodiment of the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the present invention can be combined with each other.
The experimental rig of the clamped component capability of antidetonance of concrete of the invention as shown in Figures 1 to 12, including support base
10, the fixed lid 30 of fixing seat 20, component and explosive hang locator 40, and support base 10 includes four base support units 11, base
Plinth support unit 11 includes being welded by square steel tube and support frame 111 that upper surface outer profile is square, on support frame 111
Two neighboring lateral surface is outward extended with the cantilever 112 for being connected and fixed, and the cantilever 112 of four base support units 11 passes through
Connecting tube 12, which is connected and fixed, makes four base support units 11 form the square test stand of upper surface outer profile, cantilever 112
Be equipped with multiple connecting holes in connecting tube 12 and be bolted to connection, pass through adjust cantilever 112 and connecting tube 12 company
Connecing position can adjust the side length of the test stand；Fixing seat 20 includes backing plate 21 and support 22, and backing plate 21 is fixed on support
The upper surface of frame 111, support 22 are fixedly linked by bolt with backing plate 21, support frame 111, and support 22 is equipped with semi-circular member
Mounting groove, there are two the center line phases of support 22 and the semi-circular member mounting groove on two supports 22 for installation on each backing plate 21
It is mutually vertical；The top of support 22 is equipped with the fixed lid 30 of component, two supports 22 to setting on two adjacent backing plates 21 it
Between a concrete component to be measured is installed；It includes support portion 41 and horizontal hanging stick 42, horizontal hanging stick that explosive, which hangs locator 40,
42 are equipped with the center for explosive to be hung on to support frame 10 and position identical with concrete component mounting height to be measured
Hook 43.The square test of the upper surface outer profile formed in the application by using four base support unit spliceds
Frame can install four identical or different concrete components to be measured simultaneously on the support frame, it can be achieved that different component is same quick-fried
Capability of antidetonance test under fried load action；The center that explosive can be fixed on test stand by locator is hung by explosive, it is quick-fried
Fried object open it is quick-fried after it is identical to the effect of each concrete component to be measured, overcome to test caused by the discreteness because of explosive pharmacological property itself and miss
Difference；It can be by the side length of adjusting cantilever and the link position Adjustment Tests frame of connecting tube, just when four base support unit spliceds
It is assembled in disassembly, and can be carried out a certain range of length-width ratio and adjust, meet the concrete component to be measured of different draw ratio sizes
Test need, significantly increase the versatility and convenience of device.
In above-described embodiment of the application, the fixing end of two neighboring concrete component to be measured is respectively placed in same pad
Horizontal, the vertical both direction of plate can keep each component to be in same plane, and be equidistant with detonation central point；And it can root
According to the distance between test member size adjusting base support unit, while explosive positioning system can also realize the tune of different location
Section, ensure that the sustainable recycling of experimental rig, and present apparatus junction is all made of high-strength bolt connection, is conducive to quickly tear open
Assembly is unloaded, is carried transportability strong；Spherical detonation wave is generated after explosive initiation, multiple components generate under same Impact Load
Dynamic response, Dynamic load of nuclear blast size, direction suffered by each component are all the same, are advantageously implemented under identical Blast Load effect
Mechanical property research, data have comparability；The support base of the experimental rig uses frame structure, can also be at support base bottom
Sandbag is stacked in portion, can be absorbed explosive load to the shock wave on ground, while can also keep the stability of base support, be eliminated
Clamped system is generated the unfavorable factor for vibrating and influencing test result by shock wave；The experimental rig explosion wave just under
Side is without hindrance, can guide on dispersed shock wave to the sandbag of support base bottom, greatly avoid because backing plate or supporting member are anti-
It penetrates explosion wave and secondary pulse is caused to test member, further reduce test disturbing factor, ensure that the effective of data
Property.
In one embodiment of the application, it is preferable that cantilever 112 and connecting tube 12 are square steel tube, connecting tube 12
Outer diameter is less than the internal diameter of cantilever 112；It is also filled with fine sand in the internal cavities of support frame 111, cantilever 112 and connecting tube 12, it can
Buffer explosive forces further to improve the stability of experimental rig.
In one embodiment of the application, it is preferable that the fixed lid 30 of component is equipped with and the semicircle structure on support 22
The corresponding semi-circular member fixing groove of part mounting groove, the fixed lid 30 of component are fixedly linked with support 22 by bolt and will be cylindrical
Concrete component 001 to be measured is fixed between support 22 and the fixed lid 30 of component.Specifically, the semicircle structure on support 22
The radius of part mounting groove is identical as the radius of semi-circular member fixing groove on the fixed lid 30 of component, and the half of mounting groove and fixing groove
Diameter can be designed according to the size of component to be measured, can also be spare with the support 22 of prefabricated different size, the fixed lid 30 of component.
In one embodiment of the application, it is preferable that the fixed lid 30 of component includes two I-shaped steel bases 31 and one
Top plate 32, the lower wing plates of two I-shaped steel bases 31 are fixedly linked by bolt with support 22, two I-shaped steel bases 31 it is upper
Wing plate is equipped with connecting hole, and two I-shaped steel bases 31 are connected with top plate 33 by double end standing screw 32 respectively and wait for rectangle
Concrete component 002 is surveyed to be fixed between support 22 and top plate 33.Preferably, the both ends of double end standing screw 32 are also worn respectively
It is fixed with the rivet clasp angle steel 34 of the side for fixing concrete component to be measured, the side of rivet clasp angle steel 34 and concrete component to be measured
Rubber slab 35 is also folded between face.Rectangle concrete component 002 to be measured is fixed on by support 22 using double end standing screw 32
Various sizes of component to be measured can be met according to the installation site at the top of the size flexible modulation of component to be measured between top plate 33
It is fixed require, can the rectangular elements to different dimensions carry out Exploding test simultaneously, and utilize double end standing screw and spiral shell
Female Fast Installation is fixed, and rivet clasp dynamics is strong, convenient disassembly, sustainable high recycling rate；Rubber slab can also wherein be increased
Thickness and number are further ensured that agreeing with for rectangular cross-section and rivet clasp angle steel, make up bolt pitch of holes and are fixed from fine tuning
Defect, when while effectively increasing angle steel rivet clasp dynamics, and reducing the clamped end of concrete component by explosive forces and angle
The frictionally damage of steel, and then it is precisely controlled the clamped requirement of different rectangular section size members.
In one embodiment of the application, it is preferable that the support portion 41 that explosive hangs locator 40 includes 411 He of pedestal
Double threaded screw 412, pedestal 411 are equipped with threaded hole, and the lower end of double threaded screw 412 and the pedestal pass through threaded hole stationary phase
Even；The thread segment of the upper end of double threaded screw 412 is equipped with three-way connector 413, one end of horizontal hanging stick 42 and three-way connector
413 are connected through a screw thread fixation, and the other end of horizontal hanging stick 42 is equipped with the block 421 for preventing hanging ring 44 from skidding off horizontal hanging stick 42,
Hook 43 is suspended on hanging ring 44 by lifting rope.It, can be by changing the mounting height of three-way connector 413 come condition in the application
The height of horizontal hanging stick 42.Preferably, pedestal 411 uses counterweight with threaded hole, can pass through the band spiral shell of the multiple major diameters of superposition
Pit counterweight increases vertical height and stability, if quick-fried heart vertical height can not by adjusting double threaded screw and three-way connector
Meet required precision, can also be finely adjusted the precise positioning to realize the quick-fried heart by hanging the lifting rope of explosive device.Preferably, water
Graduation mark is carved on flat hanging stick 42 also in order to adjust the position of the hanging ring, the graduation mark by hanging ring in horizontal hanging stick moves up
It moves to be precisely controlled the horizontal distance of explosive, facilitates adjusting.
In one embodiment of the application, it is preferable that the center of concrete component to be measured and away from end one third at
It is also arranged with fixed ring 50, fixed ring 50 can be used for installing explosion wave superpressure tester, also pacify on concrete component to be measured
Equipped with foil gauge, component to be measured can be acquired under blast impulse by sensors such as explosion wave superpressure tester, foil gauges
Stress, it is preferable that sensor is all made of the mode of wireless transmission；Explosion wave superpressure tester, foil gauge model with
And signal acquisition, treatment process those skilled in the art can be designed as needed, select, details are not described herein.
In above-described embodiment of the application, it is preferable that each tubing, plate are all made of the steel production of model Q345B,
Rubber slab uses flame-resistant high-temperature-resistant rubber slab.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of experimental rig of the clamped component capability of antidetonance of concrete, including the fixed lid of support base, fixing seat, component and explosive
Hang locator, which is characterized in that the support base includes four base support units, and the base support unit includes by side
The support frame that steel-pipe welding forms and upper surface outer profile is square, two neighboring outside extends outwardly on support frame as described above
There is the cantilever for being connected and fixed, the cantilever of four base support units is connected and fixed by connecting tube makes four bases
Plinth support unit forms the square test stand of upper surface outer profile, is equipped with multiple companies in the cantilever and the connecting tube
It connects hole and is bolted to connection, the link position by adjusting the cantilever and the connecting tube can adjust the test stand
Side length；The fixing seat includes backing plate and support, and the backing plate is fixed on the upper surface of support frame as described above, the support
It is fixedly linked by bolt and the backing plate, support frame as described above, the support is equipped with semi-circular member mounting groove, each described
The center line of the support and the semi-circular member mounting groove on two supports is mutually perpendicular to there are two installing on backing plate；Institute
It states and the component fixed lid is installed above support, between two supports to setting on two adjacent backing plates
One concrete component to be measured is installed；The explosive suspension locator includes support portion and horizontal hanging stick, the horizontal hanging stick
It is equipped with the center for explosive to be hung on to support frame as described above and position identical with concrete component mounting height to be measured
Hook.
2. experimental rig according to claim 1, it is characterised in that: the cantilever and the connecting tube are square steel tube,
The outer diameter of the connecting tube is less than the internal diameter of the cantilever；The internal cavities of support frame as described above, the cantilever and the connecting tube
In be also filled with fine sand.
3. experimental rig according to claim 1, it is characterised in that: the component is fixed cover be equipped with on the support
The corresponding semi-circular member fixing groove of semi-circular member mounting groove, the fixed lid of the component fixed by bolt and the support
It is connected and cylindrical concrete component to be measured is fixed between the support and the fixed lid of the component.
4. experimental rig according to claim 1, it is characterised in that: the fixed lid of the component includes two I-shaped steel bases
It is fixedly linked with the lower wing plate of a top plate, two I-shaped steel bases by bolt and the support, two I-shapeds
The upper flange of steel base is equipped with connecting hole, and two I-shaped steel bases pass through double end standing screw and the top plate phase respectively
Even and rectangle concrete component to be measured is fixed between the support and the top plate.
5. experimental rig according to claim 4, it is characterised in that: the both ends of the double end standing screw are also worn respectively
It is fixed with the rivet clasp angle steel of the side for fixing concrete component to be measured, the side of the rivet clasp angle steel and concrete component to be measured
Rubber slab is also folded between face.
6. experimental rig according to claim 1, it is characterised in that: the support portion of the explosive suspension locator includes bottom
Seat and double threaded screw, the pedestal are equipped with threaded hole, and the lower end of the double threaded screw is fixed with the pedestal by threaded hole
It is connected；The thread segment of the upper end of the double threaded screw is equipped with three-way connector, one end of the horizontal hanging stick and the threeway
Connector is connected through a screw thread fixation, and the other end of the horizontal hanging stick is equipped with the gear for preventing hanging ring from skidding off the horizontal hanging stick
Block, the hook are suspended on the hanging ring by lifting rope.
7. experimental rig according to claim 6, it is characterised in that: be also carved on the horizontal hanging stick graduation mark in order to
Adjust the position of the hanging ring.
8. experimental rig according to claim 1, it is characterised in that: the center of concrete component to be measured and divide away from end three
One of place be also arranged with fixed ring, the fixed ring can be used for installing explosion wave superpressure tester, concrete component to be measured
On be also equipped with foil gauge.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910186994.3A CN109916706B (en) | 2019-03-13 | 2019-03-13 | Concrete solid support member antiknock performance test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186994.3A CN109916706B (en) | 2019-03-13 | 2019-03-13 | Concrete solid support member antiknock performance test device |
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| CN109916706A true CN109916706A (en) | 2019-06-21 |
| CN109916706B CN109916706B (en) | 2021-05-04 |
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| CN113189141A (en) * | 2021-04-21 | 2021-07-30 | 哈尔滨工业大学 | Shrinkage ratio experimental device for explosion damage of complex reinforced concrete structure |
| CN114486576A (en) * | 2022-01-10 | 2022-05-13 | 东南大学 | Testing device and testing method for simulating coupling effect of extreme environment and explosive load on component |
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| CN109916706B (en) | 2021-05-04 |
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