Steel-UHPC (Ultra High Performance Concrete) composite structure detection test device

Abstract

The utility model discloses a steel-UHPC combined structure detection test device, which comprises a bottom plate, first side plates, second side plates and a top cover, the first side plates are fixed on two opposite sides of the bottom plate, the second side plates are detachably connected to two opposite sides of the bottom plate, and the top cover is fixed on the bottom plate. The top cover is arranged above the first side plate and the second side plate, the bottom plate, the first side plate, the second side plate and the top cover define a pouring cavity, the top cover is provided with a pouring hole, the pouring hole is communicated with the pouring cavity, and the pouring cavity is provided with a pouring hole. A plurality of defect positions are arranged on the side, close to the pouring cavity, of the first side plate and / or the second side plate. According to the utility model, various flaw detection structures can be simulated, compared and corrected, and the applicability and the reliability are improved, so that the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel structure detection device technical field especially relates to a kind of steel-UHPC combination structure detection test device. BACKGROUND

[0002] With the development of concrete industry in our country, steel-concrete (UHPC) combination structure has been widely used in many engineering fields, such as steel-UHPC combination section in bridge engineering, steel-UHPC composite beam, etc. After UHPC pouring is completed for a period of time, the bonding quality between steel-UHPC combination structure and steel plate needs to be detected. At present, the methods commonly used for detecting the bonding quality of steel-concrete combination structure in engineering include visual method, knocking method, ultrasonic method and impact echo method, etc. However, the existing non-destructive testing methods are only applicable to ordinary steel-concrete structures. Since there are great differences between steel-UHPC combination structure and ordinary steel-concrete structure, the existing non-destructive testing parameters for ordinary steel-concrete structure are not suitable for non-destructive testing parameters of steel-UHPC combination structure. Moreover, the existing detection devices for steel-UHPC combination structure usually only have simple pouring cavities and pouring structures, and corresponding structures are not set to simulate different defect structure conditions, resulting in low applicability and reliability of the detection device, thereby reducing the detection efficiency. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a steel-UHPC combination structure detection test device, which can simulate comparison and correction for various defect structures, improve applicability and reliability, and thus improve detection efficiency.

[0004] To solve the above technical problems, the utility model provides a kind of steel-UHPC combination structure detection test device, including bottom plate, first side plate, second side plate and top cover, the first side plate is fixed in the bottom plate opposite two sides, the second side plate is detachably connected in the bottom plate opposite two sides, the top cover is located above the first side plate and the second side plate.

[0005] The bottom plate, the first side plate, the second side plate and the top cover form a pouring cavity, the top cover is provided with a pouring hole, the pouring hole is communicated with the pouring cavity, and the first side plate and / or the second side plate is provided with a plurality of defect positions on the side close to the pouring cavity.

[0006] As an improvement of the above-mentioned scheme, the first side plate is vertically fixed on the bottom plate, and the bottom of the first side plate is connected with the bottom plate.

[0007] As the improvement of the above-mentioned scheme, the edge of the first side plate is provided with a first connecting plate, the edge of the second side plate is provided with a second connecting plate, the first connecting plate corresponds to the position of the second connecting plate, the first connecting plate can be connected to the second connecting plate through fasteners, and the second side plate is provided with a first handle.

[0008] As the improvement of the above-mentioned scheme, the edge of the first side plate is provided with a first connecting plate, the edge of the second side plate is provided with a second connecting plate, the first connecting plate corresponds to the position of the second connecting plate, the first connecting plate can be connected to the second connecting plate through fasteners, and the second side plate is provided with a first handle.

[0009] As the improvement of the above-mentioned scheme, the edge of the first side plate is provided with a first connecting plate, the edge of the second side plate is provided with a second connecting plate, the first connecting plate corresponds to the position of the second connecting plate, the first connecting plate can be connected to the second connecting plate through fasteners, and the second side plate is provided with a first handle.

[0010] As the improvement of the above-mentioned scheme, the edge of the first side plate is provided with a first connecting plate, the edge of the second side plate is provided with a second connecting plate, the first connecting plate corresponds to the position of the second connecting plate, the first connecting plate can be connected to the second connecting plate through fasteners, and the second side plate is provided with a first handle.

[0011] As the improvement of the above-mentioned scheme, the edge of the first side plate is provided with a first connecting plate, the edge of the second side plate is provided with a second connecting plate, the first connecting plate corresponds to the position of the second connecting plate, the first connecting plate can be connected to the second connecting plate through fasteners, and the second side plate is provided with a first handle.

[0012] As the improvement of the above-mentioned scheme, the edge of the first side plate is provided with a first connecting plate, the edge of the second side plate is provided with a second connecting plate, the first connecting plate corresponds to the position of the second connecting plate, the first connecting plate can be connected to the second connecting plate through fasteners, and the second side plate is provided with a first handle.

[0013] As the improvement of the above-mentioned scheme, the edge of the first side plate is provided with a first connecting plate, the edge of the second side plate is provided with a second connecting plate, the first connecting plate corresponds to the position of the second connecting plate, the first connecting plate can be connected to the second connecting plate through fasteners, and the second side plate is provided with a first handle.

[0014] As the improvement of the above-mentioned scheme, the edge of the first side plate is provided with a first connecting plate, the edge of the second side plate is provided with a second connecting plate, the first connecting plate corresponds to the position of the second connecting plate, the first connecting plate can be connected to the second connecting plate through fasteners, and the second side plate is provided with a first handle.

[0015] As the improvement of the above-mentioned scheme, the edge of the first side plate is provided with a first connecting plate, the edge of the second side plate is provided with a second connecting plate, the first connecting plate corresponds to the position of the second connecting plate, the first connecting plate can be connected to the second connecting plate through fasteners, and the second side plate is provided with a first handle.

[0016] The utility model discloses, have following beneficial effect:

[0017] The utility model steel -UHPC combined structure detection test device is equipped with bottom plate, first side plate, second side plate and top cover, wherein the bottom plate the first side plate the second side plate and the top cover enclose pouring cavity, and the second side plate is detachably connected on the opposite two sides of the bottom plate, when pouring, the pouring hole of the top cover can be poured and formed in the pouring cavity, and the first side plate and / or the second side plate close to the pouring cavity one side is equipped with a plurality of defect positions, through the distribution of defect position of reasonable setting, for example, only in the first side plate of one side sets up the defect position, can detect respectively on two first side plate "steel plate - defect - UHPC - steel plate" and "steel plate - UHPC - defect - steel plate" two kinds of flaw detection structure's test condition, and only in the second side plate of one side sets up the defect position, after the second side plate is taken apart, can detect on the two positions "UHPC - defect" and "UHPC" two kinds of flaw detection structure's test condition. Therefore the utility model steel -UHPC combined structure detection test device can detect and inspect a variety of flaw detection structure's detection result, can obtain accurate flaw detection parameter after comparison correction, and is applicable to a variety of different types of defect structure, has higher applicability and reliability, can also improve the detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of the utility model steel -UHPC combined structure detection test device,

[0019] Figure 2 It is the structure schematic diagram of the utility model steel -UHPC combined structure detection test device after removing top cover,

[0020] Figure 3 It is the structure schematic diagram of the utility model bottom plate and first side plate,

[0021] Figure 4 It is the structure schematic diagram of the utility model second side plate,

[0022] Figure 5 It is the structure schematic diagram of the utility model lifting plate,

[0023] Figure 6 It is the structure schematic diagram of the utility model after pouring and removing second side plate,

[0024] Figure 7 It is the distribution schematic diagram of the first defect position and the second defect position in the first embodiment of the utility model,

[0025] Figure 8 It is the distribution schematic diagram of the first defect position in the second embodiment of the utility model,

[0026] Figure 9is a distribution diagram of the second defect position in the second embodiment of the utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the utility model will be described in further detail below in combination with the drawings. Only this declaration, the up, down, left, right, front, back, inside, outside and other orientation words appearing in the text or about to appear in the utility model are based on the drawings of the utility model, and it is not a specific limitation on the utility model.

[0028] Referring to Figure 1 And Figure 2 The utility model embodiment discloses a kind of steel-UHPC combination structure detection test device, including bottom plate 1, first side plate 2, second side plate 3 and top cover 4, the first side plate 2 is fixed in the opposite two sides of the bottom plate 1, the first side plate 2 can be integrally formed with the bottom plate 1, it can also be using the way of welding and the bottom plate 1 form fixed connection, when using, the bottom plate 1 and the first side plate 2 form whole. Second side plate 3 is detachably connected in the opposite two sides of the bottom plate 1. The first side plate 2 and the second side plate 3 are preferably steel plate for engineering, to better simulate the concrete structure situation of engineering construction. Specifically, the second side plate 3 is connected with the bottom plate 1 using bolt etc. fastener, the top cover 4 is located above the first side plate 2 and the second side plate 3. The second side plate 3 can be disassembled, the first side plate 2 is fixed plate, the second side plate 3 is detachable plate, when using, can be respectively arranged in the first side plate 2 and the second side plate 3 defect position, make the UHPC concrete formed defect hole, using the characteristics that the first side plate 2 is not detachable, the second side plate 3 can be disassembled, can form different flaw detection structure on different side of UHPC concrete.

[0029] Among them, the side of the first side plate 2 and / or the second side plate 3 close to the pouring cavity 5 is provided with a plurality of defect positions, the defect position is arranged on the side close to the pouring cavity 5, can accommodate foam etc. detent piece, when pouring, detent piece can occupy the space of pouring, and after pouring, detent piece is removed, so that the UHPC concrete after pouring forms defect hole shape. In the utility model, the area size and the position of at least two defect positions are different, so that different size and different position defect holes can be obtained, so as to provide more contrast data for detection, facilitate subsequent parameter modification.

[0030] For example, only when the defect position is arranged on one side close to the first side plate 2, according to the propagation path of the impact wave, the two flaw detection structures of'steel plate-defect-UHPC-steel plate' and'steel plate-UHPC-defect-steel plate' can be formed on the two first side plates 2 respectively, and when the impact echo instrument is used for testing, the conditions of the two flaw detection structures of'steel plate-defect-UHPC-steel plate' and'steel plate-UHPC-defect-steel plate' can be detected, so that comparison can be formed. If only the defect position is arranged on the second side plate 3 on one side, after the second side plate 3 is disassembled, the two flaw detection structures of 'UHPC-defect' and 'plain UHPC' can be formed at the positions on both sides of the UHPC concrete, and when the impact echo instrument is used for testing, the conditions of the two flaw detection structures of 'UHPC-defect' and 'plain UHPC' can be detected, so that further comparison can be formed with the two flaw detection structures of'steel plate-defect-UHPC-steel plate' and'steel plate-UHPC-defect-steel plate'. According to the actual detection result and the comparison result, whether the set parameters are appropriate can be judged, and the parameter setting can be gradually improved by modifying the parameters, retesting and re-comparing.

[0031] In actual application, since the first side plate 2 is not dismountable, the defect position can be arranged at the edge of the first side plate 2 to be close to the second side plate 3, so that when the second side plate 3 is dismounted, the clamping part in the defect hole formed by the first side plate 2 can be dismounted; or the defect positions can be arranged on the second side plate 3, and part of the defect positions are arranged at the position close to the first side plate 2 in the second side plate 3, so that the UHPC concrete formed after molding forms a defect hole at the position close to the first side plate 2, and further forms the two flaw detection structures of'steel plate-defect-UHPC-steel plate' and'steel plate-UHPC-defect-steel plate' with the first side plate 2.

[0032] The bottom plate 1, the first side plate 2, the second side plate 3 and the top cover 4 surround the pouring cavity 5, the top cover 4 is provided with a pouring hole 41, the pouring hole 41 is communicated with the pouring cavity 5, and by using the pouring hole 41, the UHPC slurry can be poured into the pouring cavity 5, and the UHPC slurry is dried to form the UHPC concrete. In other embodiments, pegs, steel cages, prestressed pipes and other components can also be arranged in the pouring cavity 5 to simulate UHPC concrete structures of different structures, and further broaden the application range of detection.

[0033] The beneficial effects of the embodiments of the utility model are as follows:

[0034] The utility model discloses an embodiment steel -UHPC combined structure detection test device is equipped with bottom plate, first side plate, second side plate and top cover, wherein the bottom plate first side plate second side plate and top cover enclose and pour the cavity, and the second side plate detachably connects in the opposite two sides of bottom plate, when pouring, the pouring hole of top cover can be formed in pouring cavity, and the first side plate and / or the second side plate close to the side of pouring cavity is equipped with a plurality of defect positions, by the distribution of defect position, for example, only in the first side plate of one side sets up the defect position, can respectively in two first side plate detects " steel plate - defect - UHPC - steel plate" and " steel plate - UHPC - defect - steel plate " two kinds of flaw detection structure's test condition, and only in the second side plate of one side sets up the defect position, after the second side plate is taken apart, can detect the test condition of " UHPC - defect " and " simple UHPC " two kinds of flaw detection structure in the two positions. Therefore the utility model discloses steel -UHPC combined structure detection test device can detect and verify the detection result of multiple flaw detection structure, can obtain accurate flaw detection parameter after comparison correction, and is suitable for multiple different types of defect structure, has higher applicability and reliability, can also improve the detection efficiency.

[0035] Specifically, referring to Figure 3 and Figure 4 , the first side plate 2 is vertically fixed on the bottom plate 1, the bottom of the first side plate 2 is connected with the bottom plate 1, the second side plate 3 is provided with a first handle 32, and the first handle 32 can move the whole formed by the first side plate 2 and the bottom plate 1. The edge of the first side plate 2 is provided with a first connecting plate 21, the first connecting plate 21 protrudes from the edge of the first side plate 2, the edge of the second side plate 3 is provided with a second connecting plate 31, the second connecting plate 31 protrudes from the surface of the second side plate 3, the positions of the first connecting plate 21 and the second connecting plate 31 correspond to each other, and the first connecting plate 21 can be connected to the second connecting plate 31 by a fastener such as a bolt, so that the second side plate 3 is fixedly connected with the first side plate 2. After the second side plate 3 is connected with the first side plate 2, the second side plate 3 and the first side plate 2 can be sealingly connected with the bottom plate 1 and the first side plate 2 respectively, so that the pouring cavity 5 can be sealingly closed.

[0036] Referring to Figure 1 and Figure 5In order to improve the use of the steel-UHPC composite structure test device, a lifting plate 6 is detachably connected to the side of the first side plate 2. In use, the lifting plate 6 is fixed to the first side plate 2, and a lifting handle 61 is arranged on the lifting plate 6. In order to fix the lifting plate 6, a third connecting plate 22 is arranged on the first side plate 2 and fixed to the surface of the first side plate 2. The two side edges of the lifting plate 6 are provided with fourth connecting plates 62, which extend from the two side edges of the lifting plate 6. The fourth connecting plates 62 can be connected to the third connecting plate 22 by bolts or other fasteners. Further, in order to improve the connection stability of the lifting plate 6, the lifting plate 6 is detachably connected to the bottom plate 1 perpendicularly. The bottom plate 1 is provided with a fifth connecting plate 11 arranged on the upper surface of the bottom plate 1. The bottom of the lifting plate 6 is provided with a sixth connecting plate 63, which can be connected to the fifth connecting plate 11 by bolts or other fasteners.

[0037] After connecting the lifting plate 6, the lifting plate 6 can also improve the overall strength of the steel-UHPC composite structure test device. Specifically, referring to Figure 5 The side of the lifting plate 6 is provided with a rib plate 64, which includes a connecting portion 641 and a supporting portion 642. The connecting portion 641 is connected to the side wall of the lifting plate 6, and the supporting portion 642 extends obliquely from the connecting portion 641 towards the bottom plate 1. The supporting portion 642 can abut against the bottom plate 1, so that the rib plate 64 can be supported between the bottom plate 1 and the first side plate 2, forming a supporting effect, thereby improving the overall strength of the steel-UHPC composite structure test device.

[0038] The defect sites include first defect sites 81 and second defect sites 82. The positions and sizes of the first defect sites 81 and the second defect sites 82 are different. The first defect sites 81 and the second defect sites 82 are both multiple, and the positions and sizes of multiple first defect sites 81 are also different. The positions and sizes of multiple second defect sites 82 are also different.

[0039] Referring to Figure 6 In order to expose the first defect hole 72 and the second defect hole 71 formed by the first defect sites 81 and the second defect sites 82 after the second side plate 3 is removed, so as to facilitate the removal of the clamping members in the first defect hole 72 and the second defect hole 71. Referring to Figure 7In the first embodiment of the utility model, the first defect position 81 is arranged on one side of the second side plate 3 close to the first side plate 2, the edge of the first defect position 81 is coincident with the inner side wall of the first side plate 2, and the second defect position 82 is arranged in the middle of the second side plate 3 and vertically arranged. The first defect position 81 and the second defect position 82 are arranged on the second side plate 3, specifically, the first defect position 81 is arranged on one side of the second side plate 3 close to the first side plate 2, and the edge of the first defect position 81 is coincident with the inner side wall of the first side plate 2, so that after pouring, the second side plate 3 is removed, one side of the first defect hole 72 formed by the first defect position 81 is connected with the inner side wall of the first side plate 2, and the other side is exposed in the UHPC concrete, so that the clamping part in the first defect hole 72 can be chiseled out, only the first defect hole 72 is left. Moreover, the first defect position 81 is close to one of the first side plates 2, and the other side of the first side plate 2 is not provided with a defect position, so that when detecting, the first defect hole 72 is arranged in one direction of the UHPC concrete, and the first defect hole 72 is not arranged in the other direction, so that according to the penetration path of the shock wave, two kinds of flaw detection structures of "steel plate-defect-UHPC-steel plate" and "steel plate-UHPC-defect-steel plate" can be formed on the two first side plates 2 respectively. The second defect position 82 is arranged in the middle of the second side plate 3 and vertically arranged, and the second defect position 82 is arranged on one of the second side plates 3, and the other second side plate 3 is not provided with the second defect position 82, so that after pouring and removing the second side plate 3, the second defect hole 71 is arranged in one direction of the UHPC concrete, and the second defect hole 71 is not arranged in the other direction, so that the surfaces on both sides of the UHPC concrete are directly detected, and according to the penetration path of the shock wave, two kinds of flaw detection structures of "UHPC-defect" and "plain UHPC" can be formed on both sides of the UHPC concrete.

[0040] Referring to Figure 8 and Figure 9In the second embodiment of the utility model, the first defect position 81 is arranged on one side of the first side plate 2 close to the second side plate 3, wherein the edge of the first defect position 81 coincides with the inner side wall of the second side plate 3, and the second defect position 82 is arranged on the middle part of the second side plate 3 and vertically arranged. Specifically, the first defect position 81 and the second defect position 82 are arranged on the first side plate 2 and the second side plate 3 respectively, wherein the first defect position 81 is close to the second side plate 3 and can coincide with the inner side wall of the second side plate 3, so that after the second side plate 3 is removed, the first defect hole 72 formed by the first defect position 81 can be exposed from one side of the second side plate 3, thereby the clamping part can be chiseled out. In this way, during detection, the two sides of the formed UHPC concrete can form two flaw detection structures of "UHPC-defect" and "plain UHPC" respectively.

[0041] The above is the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered to be within the protection scope of the utility model.

Claims

1. A steel-UHPC composite structure test device, characterized in that, The bottom plate, the first side plate, the second side plate and the top cover form a pouring cavity, the top cover is provided with a pouring hole, the pouring hole is communicated with the pouring cavity, and one side of the first side plate and / or the second side plate close to the pouring cavity is provided with a plurality of defect positions. The first side plate is vertically fixed on the bottom plate, and the bottom of the first side plate is connected with the bottom plate.

2. The steel-UHPC composite structure test device according to claim 1, characterized in that, The edge of the first side plate is provided with a first connecting plate, the edge of the second side plate is provided with a second connecting plate, the positions of the first connecting plate and the second connecting plate correspond to each other, the first connecting plate can be connected to the second connecting plate through a fastener, and the second side plate is provided with a first handle.

3. The steel-UHPC composite structure test device according to claim 2, characterized in that, The first side plate is provided with a third connecting plate, the two side edges of the lifting plate are provided with fourth connecting plates, and the fourth connecting plates can be connected to the third connecting plate through a fastener.

4. The steel-UHPC composite structure test device according to claim 3, characterized in that, The lifting plate is detachably connected with the bottom plate in a vertical mode, the bottom plate is provided with a fifth connecting plate, the bottom of the lifting plate is provided with a sixth connecting plate, and the sixth connecting plate can be connected to the fifth connecting plate through a fastener.

5. The steel-UHPC composite structure test device according to claim 4, characterized in that, The side of the lifting plate is provided with a rib plate, the rib plate comprises a connecting portion and a supporting portion, the connecting portion is connected to the side wall of the lifting plate, the supporting portion extends from the connecting portion to the bottom plate in a slanting mode, and the supporting portion can abut against the bottom plate.

6. The steel-UHPC composite structure test device according to claim 4, characterized in that, The edge of the top cover is provided with a surrounding plate, the surrounding plate can abut against the side wall of the first side plate and the second side plate respectively, and the top cover is further provided with a second handle.

7. The steel-UHPC composite structure test device according to claim 4, characterized in that, The defect positions comprise first defect positions and second defect positions.

8. The steel-UHPC composite structure test device according to claim 1, characterized in that, The first defect positions are arranged on one side of the second side plate close to the first side plate, the edge of the first defect position coincides with the inner side wall of the first side plate, and the second defect positions are arranged in the middle of the second side plate and arranged vertically; or 9. The steel-UHPC composite structure test device according to claim 1, characterized in that, The first defect positions are arranged on one side of the first side plate close to the second side plate, the edge of the first defect position coincides with the inner side wall of the second side plate, and the second defect positions are arranged in the middle of the second side plate and arranged vertically. The first defect positions are arranged on one side of the first side plate close to the second side plate, the edge of the first defect position coincides with the inner side wall of the second side plate, and the second defect positions are arranged in the middle of the second side plate and arranged vertically. ​

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