A reaction force support system for explosion shock wave simulation test

Abstract

The present invention proposes a reaction force support system for explosion shock wave simulation test, comprising: a support frame group, an adjustable reaction frame, a reaction gap adjustment bracket, a reaction wall and a support bracket; the support frame group is composed of a plurality of fixed support frames connected in parallel, the lower portion of the fixed support frame is connected to the ground, and the upper portion is connected to the segmented test section and the adjustable reaction frame of the explosion shock wave simulation test system through a pressure plate; the adjustable reaction frame is installed in the middle of the segmented test section, the reaction wall is set at the tail end of the support frame group, and the other side of the reaction wall is provided with a support bracket that is integral with the reaction wall; the reaction gap adjustment bracket is set between the reaction wall and the support frame group. The present invention can avoid large-scale and multiple reconstruction of the test system, reducing the cost of test construction; and the system has macroscopic and microscopic adjustment modes, and can also realize local adjustment during the test, further expanding the test range of the test system.

Description

Technical Field

[0001] The invention relates to an explosion shock wave test technology, in particular to a reaction force support system for an explosion shock wave simulation test. Background Art

[0002] The equipment resistance test system includes a blast wave simulator and a test section. The blast wave simulator uses chemical explosion to generate simulated explosion shock waves. The equipment under test is installed in the test section. Through testing, the explosion resistance performance of the equipment under test in ground or underground engineering structures under specific explosion loads is obtained.

[0003] Existing explosion shock wave test systems utilize reinforced concrete structures for their reaction support. Once constructed, the components remain fixed. With the continuous advancement of technology, experimental content continues to expand, and more testing requirements require the construction of more testing facilities. However, explosion shock wave test systems are large-scale projects, especially those for nuclear explosion shock wave tests, which are expensive and time-consuming. Continuous duplication of construction not only consumes a large amount of funds but also seriously slows down the progress of experimental research. Summary of the Invention

[0004] In response to the problems raised in the background, the purpose of the present invention is to provide a reaction force support system for explosion shock wave simulation tests, which changes the construction method of the test section. Through the combined support frame group, different combinations with the test section are formed, so that the system can meet more test requirements, avoid large-scale and multiple reconstructions of the test system, and reduce the test construction cost; and this system has macro and micro adjustment modes, and the same overall combination can also realize local adjustment during the test, further expanding the test range of the test system.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A reaction force support system for an explosion shock wave simulation test comprises: a support frame group, an adjustable reaction frame, a reaction gap adjustment frame, a reaction wall and a support bracket; the support frame group is composed of a plurality of fixed support frames connected in parallel, the lower portion of the fixed support frame is connected to the ground, and the upper portion is connected to a segmented test section and the adjustable reaction frame of the explosion shock wave simulation test system through a pressure plate; the adjustable reaction frame is installed in the middle of the segmented test section, the reaction wall is arranged at the rear end of the support frame group, and a support bracket fixedly connected to the reaction wall is provided on the other side of the reaction wall; the reaction gap adjustment bracket is arranged between the reaction wall and the support frame group.

[0007] The adjustable reaction frame includes a base frame, a bracket, a vertical beam and a horizontal beam. The base frame is installed on a fixed support frame. The upper surface of the base frame is a first bottom plate, and a plurality of first mounting holes are evenly distributed on the first bottom plate. A second bottom plate is provided on the fixed support frame on one side of the base frame, and the upper surface of the second bottom plate is lower than the first bottom plate.

[0008] The bracket as a whole is a vertical plate frame structure, the lower end of which is fixedly connected to the upper surface of the fixed support frame and is located on the right side of the base frame. The left side of the bracket is covered with a panel, and a group of second connection holes are respectively provided on both sides of the upper part of the panel, and the number of each group of second connection holes is multiple;

[0009] A door opening for installing test equipment is provided in the middle of the lower part of the panel;

[0010] Vertical beams are provided on both sides of the door opening, the lower end of each vertical beam is connected to the first mounting hole on the first bottom plate by a bolt, and the upper end of each vertical beam is provided with a positioning slot;

[0011] A crossbeam is provided above the door opening, the two ends of the crossbeam are respectively connected to the second connection holes on both sides of the upper part of the panel by bolts, and the lower end of the crossbeam is respectively positioned in the positioning slots of the two vertical beams;

[0012] The two vertical beams are fixedly connected to the opposite sides with side plates, and the lower end surface of the horizontal beam is fixedly connected to a flat plate. The side plates, the flat plate, the first bottom plate and the panel form a cavity which is open only on the left side.

[0013] The vertical beam is composed of a vertical rectangular frame and a positioning rod. The rectangular frame is vertically installed on the lower left end of the panel, and the rectangular frame is connected to the upper surface of the first base plate; the positioning rod is fixedly connected to the left side of the rectangular frame, and the lower end of the positioning rod is connected to the left end surface of the first base plate. The upper end of the positioning rod extends to above the rectangular frame, and forms the positioning slot with the top end of the rectangular frame.

[0014] The crossbeam is a horizontal rectangular frame structure as a whole, the right side frame of which is connected to the second connection hole on the panel, and the left side frame is connected to the positioning rod through bolts.

[0015] A positioning support assembly is also installed in the positioning slot of the vertical beam to adjust the height of the horizontal beam.

[0016] The positioning support assembly includes a plurality of U-shaped plates connected in parallel, the right end of each U-shaped plate abuts against the panel, and the left end is connected to the positioning rod through bolts.

[0017] There are two reaction gap adjustment brackets, which are respectively located on both sides of the tail end of the support frame group. The reaction gap adjustment bracket is composed of a vertical frame and a top rod. The vertical frame as a whole is a vertical frame structure perpendicular to the reaction wall. One end of the vertical frame is in contact with the reaction wall, and the other end is provided with multiple vertically arranged positioning mounting holes. The top rod is threadedly connected to a positioning mounting hole, and the other end of the top rod is in contact with the segmented test section.

[0018] The reaction wall and the supporting corbel are integrally cast by reinforced concrete, and the number of the supporting corbels is at least two.

[0019] Beneficial effects of the present invention:

[0020] (1) The support frame group pattern can be used to connect different test sections as needed. Macroscopically, the combination method has been changed from the previous reinforced concrete fixing method to a detachable steel structure connection, which makes assembly faster and avoids the duplication of test facilities.

[0021] (2) The adjustable reaction frame can adjust the position of the horizontal and vertical beams according to the size of the equipment being tested, thereby changing the structural strength of the bracket and avoiding the problem of insufficient reaction support strength in the equipment resistance test. In addition, a relatively closed test area is formed between the horizontal and vertical beams, which can eliminate the influence of the reflected waves from the surrounding walls and improve the equipment test accuracy.

[0022] (3) The reaction gap adjustment bracket can make the combination more flexible, eliminate the combination tolerance of each component at the micro level, reduce the manufacturing difficulty of each part of the structure, and correspondingly reduce the overall manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic three-dimensional diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the adjustable reaction frame.

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the adjustable reaction frame after removing the crossbeam.

[0026] Figure 4 Schematic diagram of the assembly of the bracket and base plate in the adjustable reaction frame.

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of two vertical beams in the adjustable reaction frame.

[0028] Figure 6 Schematic diagram of the frame for adjusting the bracket for clearance.

[0029] 1. Support frame group, 2. Adjustable reaction frame, 3. Reaction gap adjustment bracket, 4. Reaction wall, 5. Support corbel, 6. Segmented test section; 101. Fixed support frame; 201. Bracket, 202. Base frame, 203. Vertical beam, 204. Horizontal beam, 205. Door opening, 206. Second bottom plate, 207. Panel, 208. First bottom plate, 209. Side plate, 210. Flat plate; 231. Rectangular frame, 232. Positioning rod, 233. Positioning slot, 234. Positioning support assembly, 235. U-shaped plate; 31. Vertical frame, 32. Top rod. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0031] like Figures 1-6 As shown, a reaction force support system for an explosion shock wave simulation test comprises: a support frame group 1, an adjustable reaction frame 2, a reaction gap adjustment bracket 3, a reaction wall 4 and a support bracket 5; the support frame group 1 is composed of a plurality of fixed support frames 101 connected in parallel from left to right, the lower part of the fixed support frame 101 is connected to the ground, and the upper part is connected to the segmented test section 6 and the adjustable reaction frame 2 of the explosion shock wave simulation test system through a pressure plate; the adjustable reaction frame 2 is installed in the middle of the segmented test section 6. In the figure, the segmented test section 6 is composed of multiple sub-test sections connected in series, each sub-test section has a different pipe diameter and cross-sectional shape. Since the distance between each sub-test section and the simulated explosion source is different, each sub-test section has a different test strength. The adjustable reaction frame 2 can be arbitrarily set between two adjacent sub-test sections; the reaction wall 4 is set at the tail end of the support frame group 1, and the other side of the reaction wall 4 is provided with a support bracket 5 fixedly connected to the reaction wall 4; the reaction gap adjustment bracket 3 is set between the reaction wall 4 and the support frame group 1.

[0032] The adjustable reaction frame 2 includes a base frame 202, a bracket 201, a vertical beam 203 and a horizontal beam 204. The base frame 202 is installed on a fixed support frame 101. The upper surface of the base frame 202 is a first bottom plate 208, and a plurality of first mounting holes are evenly distributed on the first bottom plate 208. A second bottom plate 206 is provided on the fixed support frame 101 on the right side of the base frame 202. The upper surface of the second bottom plate 206 is lower than the first bottom plate 208.

[0033] The bracket 201 is a vertical plate frame structure as a whole, which can conflict with the sub-test section or be fixedly connected to the end face of the test section. In one embodiment of the present invention, the two ends of the right side of the bracket 201 are respectively fixedly connected to the end faces of the sub-test section adjacent thereto, and the lower end thereof is fixedly connected to the upper surface of the fixed support frame 101 and is located on the left side of the base frame 202. The left side of the bracket 201 is covered with a panel 207, and the panel 207 is perpendicular to the axis of the segmented test section 6. A group of second connecting holes is respectively provided on both sides of the upper part of the panel 207, and the number of each group of second connecting holes is multiple; specifically, the first mounting hole on the bottom plate 208 and the second connecting holes on both sides of the upper part of the panel 207 change according to the positions of the cross beam 204 and the vertical beam 203. Only a part of them is used each time, and the unused first mounting holes and second connecting holes are blocked with bolts during the test;

[0034] A door opening 205 for installing test equipment is provided at the middle position of the lower portion of the panel 207;

[0035] Vertical beams 203 are provided on both sides of the door opening 205. The lower end of each vertical beam 203 is connected to the first mounting hole on the first bottom plate 208 by a bolt, and the upper end of each vertical beam 203 is provided with a positioning slot 233.

[0036] A crossbeam 204 is provided above the door opening 205. The two ends of the crossbeam 204 are respectively connected to the second connection holes on both sides of the upper portion of the panel 207 by bolts, and the lower ends of the crossbeam 204 are respectively positioned in the positioning slots 233 of the two vertical beams 203.

[0037] The two vertical beams are fixedly connected to the opposite sides with side panels 209, and the lower end surface of the horizontal beam 204 is fixedly connected to a flat plate 210. The side panels 209, flat plate 210, the first bottom plate 208 and the panel 207 form a cavity that is open only on the left side.

[0038] The vertical beam 203 is composed of a vertical rectangular frame 231 and a positioning rod 232. The rectangular frame 231 is vertically mounted on the lower left end of the panel 207 and connected to the upper surface of the first bottom plate 208. The positioning rod 232 is fixedly connected to the left side of the rectangular frame 231, and the lower end of the positioning rod 232 is connected to the left end surface of the first bottom plate 208. The upper end of the positioning rod 232 extends above the rectangular frame 231 and forms the positioning slot 233 with the top end of the rectangular frame 231.

[0039] The crossbeam 204 is a horizontal rectangular frame structure as a whole, with its right side frame connected to the second connection hole on the panel 207, and its left side frame connected to the positioning rod 232 through bolts.

[0040] A positioning support assembly 234 is also installed within the positioning slot 233 of the vertical beam 203, which is used to adjust the height of the horizontal beam 204. This positioning support assembly 234 includes multiple U-shaped plates 235 connected in parallel. The right end of each U-shaped plate 235 abuts against the panel 207, and the left end is bolted to the positioning rod 232. The positioning support assembly 234 is used to compensate for the gap generated when the horizontal beam 204 moves up and down. Together with the side panels 209, the flat plate 210, the first bottom plate 208, and the panel 207, it forms a cavity that is open only on the left side.

[0041] There are two reaction gap adjustment brackets 3, one located on either side of the rear end of the support frame assembly 1. The reaction gap adjustment brackets 3 are composed of a vertical frame 31 and a push rod 32. The vertical frame 31 is a vertical frame structure perpendicular to the reaction wall 4. One end of the frame abuts the reaction wall 4, and the other end is provided with multiple vertically arranged positioning holes. The push rod 32 is threadedly connected to one of the positioning holes, and the other end of the push rod 32 abuts the segmented test section 6. Specifically, there are multiple push rods 32, each of which abuts the rear end of the segmented test section 6.

[0042] The reaction wall 4 and the supporting corbels 5 are integrally cast by reinforced concrete, and the number of the supporting corbels 5 is at least two.

[0043] Principle of the present invention: The support frame group 1 of the present invention can be connected to a variety of different test sections as needed, and the combination method is changed from the previous reinforced concrete fixing method to a detachable steel structure connection, which makes assembly faster and avoids duplicate construction of test facilities; the adjustable reaction frame 2 can adjust the position of the horizontal beam 204 and the vertical beam 203 according to the size of the tested equipment or the test requirements, thereby changing the structural strength of the bracket 201 and avoiding the problem of insufficient reaction support strength in the equipment resistance test, and a relatively closed test area is formed between the horizontal beam 204 and the vertical beam 203, which can eliminate the influence of the reflected waves from the surrounding walls and improve the equipment test accuracy; the reaction gap adjustment bracket can make the combination method more flexible, and eliminates the combination tolerance of each component, reduces the manufacturing difficulty of each part of the frame, and correspondingly reduces the overall manufacturing cost.

[0044] The parts not described in detail in this invention are prior art.

Claims

1. A reaction force support system for explosion shock wave simulation test, comprising: A support frame group (1), an adjustable reaction frame (2), a reaction gap adjustment bracket (3), a reaction wall (4) and a support bracket (5); the characteristics are: the support frame group (1) is composed of a plurality of fixed support frames (101) connected in parallel, the lower part of the fixed support frame (101) is connected to the ground, and the upper part is connected to the segmented test section (6) and the adjustable reaction frame (2) of the explosion shock wave simulation test system through a pressure plate; the adjustable reaction frame (2) is installed in the middle of the segmented test section (6), the reaction wall (4) is arranged at the tail end of the support frame group (1), and the other side of the reaction wall (4) is provided with a support bracket (5) fixedly connected to the reaction wall (4); the reaction gap adjustment bracket (3) is arranged between the reaction wall (4) and the support frame group (1); The adjustable reaction frame (2) includes a base frame (202), a bracket (201), a vertical beam (203) and a horizontal beam (204); the base frame (202) is mounted on a fixed support frame (101); the upper surface of the base frame (202) is a first bottom plate (208), and a plurality of first mounting holes are evenly distributed on the first bottom plate (208); a second bottom plate (206) is provided on the fixed support frame (101) on one side of the base frame (202); the upper surface of the second bottom plate (206) is lower than the first bottom plate (208); The bracket (201) is a vertical plate-type frame structure as a whole, the lower end of which is fixedly connected to the upper surface of the fixed support frame (101) and is located on the right side of the base frame (202), and the left side of the bracket (201) is covered with a panel (207), and a group of second connection holes is respectively provided on both sides of the upper part of the panel (207), and the number of each group of second connection holes is multiple; A door opening (205) for installing test equipment is provided at the middle position of the lower portion of the panel (207); Vertical beams (203) are respectively provided on both sides of the door opening (205), the lower end of each vertical beam (203) is connected to the first mounting hole on the first bottom plate (208) by a bolt, and the upper end of each vertical beam (203) is provided with a positioning slot (233); A crossbeam (204) is provided above the door opening (205), and both ends of the crossbeam (204) are connected to the second connection holes on both sides of the upper portion of the panel (207) through bolts, and the lower end of the crossbeam (204) is positioned in the positioning slots (233) of the two vertical beams (203). The two vertical beams (203) are fixedly connected to a side plate (209) on the opposite side, and the lower end surface of the horizontal beam (204) is fixedly connected to a flat plate (210). The side plates (209), the flat plate (210), the first bottom plate (208), and the panel (207) form a cavity that is open only on the left side.

2. The reaction force support system for explosion shock wave simulation test according to claim 1, characterized in that: The vertical beam (203) is composed of a vertical rectangular frame (231) and a positioning rod (232), wherein the rectangular frame (231) is vertically installed on the lower left end of the panel (207), and the rectangular frame (231) is connected to the upper surface of the first bottom plate (208); the positioning rod (232) is fixedly connected to the left side of the rectangular frame (231), and the lower end of the positioning rod (232) is connected to the left end surface of the first bottom plate (208), and the upper end of the positioning rod (232) extends to the top of the rectangular frame (231) to form the positioning slot (233) with the top end of the rectangular frame (231); the cross beam (204) is a horizontal rectangular frame structure as a whole, wherein the right side frame is connected to the second connection hole on the panel (207), and the left side frame is connected to the positioning rod (232) by bolts.

3. The reaction force support system for explosion shock wave simulation test according to claim 2, characterized in that: A positioning support assembly (234) is also installed in the positioning slot (233) of the vertical beam (203) for adjusting the height of the horizontal beam (204).

4. The reaction force support system for explosion shock wave simulation test according to claim 3 is characterized by: The positioning support assembly (234) includes a plurality of U-shaped plates (235) connected in parallel, wherein the right end of each U-shaped plate (235) abuts against the panel (207), and the left end is connected to the positioning rod (232) via a bolt.

5. The reaction force support system for explosion shock wave simulation test according to claim 1 is characterized by: The number of the reaction gap adjustment brackets (3) is two, and the two reaction gap adjustment brackets (3) are respectively located on both sides of the tail end of the support frame group (1). The reaction gap adjustment bracket (3) is composed of a vertical frame (31) and a top rod (32). The vertical frame (31) is a vertical frame structure perpendicular to the reaction wall (4) as a whole, one end of which is in contact with the reaction wall (4), and the other end is provided with a plurality of vertically arranged positioning mounting holes. The top rod (32) is threadedly connected to a positioning mounting hole, and the other end of the top rod (32) is in contact with the segmented test section (6).

6. The reaction force support system for explosion shock wave simulation test according to claim 1, characterized in that: The reaction wall (4) and the supporting corbels (5) are integrally cast by reinforced concrete, and the number of the supporting corbels (5) is at least two.

Images