CN220945876U - Pouring die for measuring concrete fracture performance by semicircular disc three-point bending method - Google Patents
Pouring die for measuring concrete fracture performance by semicircular disc three-point bending method Download PDFInfo
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- CN220945876U CN220945876U CN202322460476.0U CN202322460476U CN220945876U CN 220945876 U CN220945876 U CN 220945876U CN 202322460476 U CN202322460476 U CN 202322460476U CN 220945876 U CN220945876 U CN 220945876U
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- 238000013001 point bending Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 238000005266 casting Methods 0.000 claims description 15
- 239000000565 sealant Substances 0.000 claims description 5
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 25
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000003292 glue Substances 0.000 abstract 1
- 208000010392 Bone Fractures Diseases 0.000 description 16
- 206010017076 Fracture Diseases 0.000 description 16
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- Moulds, Cores, Or Mandrels (AREA)
Abstract
A pouring die for measuring the breaking performance of concrete by a semicircular disc three-point bending method comprises a first arc side plate and a second arc side plate, wherein the first arc side plate and the second arc side plate are fixed into a section of integral arc by bolts after being spliced, third side plates are respectively fixed on the inner sides of the first arc side plate and the second arc side plate, prefabricated seam steel plates are fixed between the two third side plates, the first arc side plate and the second arc side plate are connected into a whole, a bottom plate is fixed at the bottom of the first arc side plate and the second arc side plate, the side surfaces of the bottom plate are flatly attached to the inner side surfaces of the two third side plates, the bottom plate and the first arc side plate and the second arc side plate form a semicircular arc die, and sealing glue is arranged at each seam in the die; the utility model has the advantages of simple structure, convenient assembly and disassembly, good compactness, good stability and convenient pouring operation, and realizes the direct manufacture of the three-point bending semicircular disc test piece with the prefabricated crack, so as to be used for researching the influence of various factors on the concrete fracture performance in the construction process.
Description
Technical Field
The utility model relates to the technical field of concrete pouring dies, in particular to a pouring die for measuring the breaking performance of concrete by a semicircular disc three-point bending method.
Background
The concrete has high economic benefit and good safety performance, and is widely applied to dam, highway, bridge and house construction. In order to solve the cracking problem of the concrete structure and improve the safety and durability of the concrete structure, researchers develop concrete cracking performance tests to research the cracking performance and the failure mechanism of the concrete. Along with the development of fracture performance tests, a new form of a fracture test piece appears, wherein the three-point bending semicircular disc test piece has the characteristics of simple test and material saving, is mainly used for testing the fracture toughness of rock, but is less applied to the fracture test of concrete, the main test piece adopted in the current concrete fracture test is still a three-point bending beam test piece and a wedge split test piece, the fracture test of developing various types of test pieces has important significance for researching the fracture performance of the concrete, and the casting mold of the three-point bending semicircular disc test piece is necessary to be designed for developing the semicircular disc three-point bending fracture test piece and directly manufacturing the concrete test piece with the prefabricated crack.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a pouring die for measuring the concrete fracture performance by a half-disc three-point bending method, which realizes the direct manufacture of manufacturing a three-point bending half-disc test piece with prefabricated cracks, and is used for researching the influence of various factors on the concrete fracture performance in the construction process.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a pouring mould of semicircle disc three-point bending method survey concrete fracture performance, including first arc curb plate and second arc curb plate, reuse bolt fastening one section holistic arc behind first arc curb plate and the second arc curb plate grafting, the arc inboard of first arc curb plate and second arc curb plate is fixed with the third curb plate respectively, be fixed with prefabricated seam steel sheet between two third curb plates, link the three as an organic whole, the bottom of first arc curb plate and second arc curb plate is fixed with the bottom plate, the bottom plate side is flattened with the medial surface subsides of two third curb plates, they form a semicircle arc mould with first arc curb plate and second arc curb plate together, each seam crossing in the mould is provided with the sealant.
In the preferred scheme, be provided with the recess on the first arc curb plate, the second arc curb plate is provided with the boss, and the boss of second arc curb plate inserts in the recess of first arc curb plate, adopts the bolt to fix it into one section holistic arc.
In the preferred scheme, first arc curb plate includes first arc board, is provided with the recess from the top down on the terminal surface of first arc board one end, and first arc board outer arc side is provided with first upper plate, first hypoplastron, first intermediate junction board and first side connecting plate respectively, and their terminal surface is all level with the terminal surface of first arc board, all is provided with the bolt hole on first hypoplastron, first intermediate junction board and the first side connecting plate.
In the preferred scheme, the second arc curb plate height is with first arc curb plate, the second arc curb plate includes the second arc board, from the top down is provided with the boss on second arc board one end terminal surface, the boss of second arc board inserts the assembly in the recess of first arc board, the structure is with first arc curb plate, second arc board outer arc side is provided with the second respectively and goes up board, the second hypoplastron, second intermediate junction board and second side connecting plate, their terminal surface is all level with the terminal surface of first arc board, all be provided with the bolt hole on second hypoplastron, second intermediate junction board and the second side connecting plate, first arc curb plate and second arc curb plate pass through the bolt hole spiro union on first intermediate junction board and the second intermediate junction board and fix as an organic wholely.
In the preferred scheme, the both ends of third curb plate all are provided with the bolt hole, and one of them one end is connected fixedly as an organic wholely with first side connecting plate, and another one end is connected fixedly as an organic wholely with the second side connecting plate.
In the preferred scheme, prefabricated seam steel sheet includes rigidity vertical fixation riser and diaphragm as an organic whole, and fixes the handle on the diaphragm, and the riser cartridge is in the intermediate slit of two third curb plates, stretches into in the mould, is provided with two sets of bolt holes on the diaphragm, connects the other end of fixed two third curb plates respectively to connect it as an organic whole.
In the preferred scheme, the bottom plate is semi-circular, and straight string section terminal surface is leveled with the medial surface of two third curb plates, and the arc section side is provided with the arc boss, and the boss lateral surface is leveled with the intrados of first arc board and second arc board, is provided with the bolt hole on the tread in the boss outside, and the bottom plate passes through the bolt hole and is connected fixedly as an organic wholely with first arc curb plate and second arc curb plate.
The bottom surface of the bottom plate is vertical to the inner arc surface and the outer arc surface of the first arc plate and the second arc plate.
The pouring die for measuring the concrete fracture performance by the semicircular disc three-point bending method has the following beneficial effects:
1. The utility model is provided with a plurality of bosses and grooves for assembling, which is beneficial to the relative fixation and sealing among parts and ensures the rigidity, firmness and compactness of the pouring die;
2. The prefabricated seam steel plate is arranged between the two independent separated side plates, so that the prefabricated seam steel plate is convenient to install and detach, meanwhile, the direct manufacture of manufacturing the three-point bending semicircular disc test piece with the prefabricated seam is realized, and the prefabricated seam steel plate is used for researching the influence of various factors on the concrete fracture performance in the construction process;
3. the handle of the prefabricated seam steel plate is arranged, so that the prefabricated seam steel plate can be pulled out after the test piece is manufactured;
4. The arc-shaped curved surface is vertical to the ground, so that the stability is good, and the pouring operation is convenient;
5. the utility model does not need a top plate, is convenient for operation, is beneficial to observation and saves materials.
Drawings
The utility model is further described below with reference to the accompanying drawings and examples of implementation:
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a bottom view of the present utility model;
FIG. 3 is a schematic view of the assembly of a third side panel with a prefabricated seam panel according to the present utility model;
FIG. 4 is a schematic view of a first arc side plate according to the present utility model;
FIG. 5 is a rear view of a first arc side plate of the present utility model;
FIG. 6 is a schematic view of a second arc side plate according to the present utility model;
FIG. 7 is a rear view of a second arc side plate of the present utility model;
FIG. 8 is a schematic view of the structure of the prefabricated steel panel of the present utility model;
FIG. 9 is a schematic view of the structure of the base plate of the present utility model;
In the figure: the device comprises a first arc side plate 1, a second arc side plate 2, a third side plate 3, a prefabricated seam steel plate 4, a bottom plate 5, a first arc plate 101, a first upper plate 102, a first lower plate 103, a first middle connecting plate 104, a first side connecting plate 105, a second arc plate 201, a second upper plate 202, a second lower plate 203, a second middle connecting plate 204, a second side connecting plate 205, a vertical plate 401, a transverse plate 402 and a handle 403.
Detailed Description
As shown in fig. 1-9, a pouring mold for measuring the fracture performance of concrete by a semicircular disc three-point bending method comprises a first arc side plate 1 and a second arc side plate 2, wherein the first arc side plate 1 and the second arc side plate 2 are inserted and then are fixed into a section of integral arc by bolts, third side plates 3 are respectively fixed on the inner sides of the first arc side plate 1 and the second arc side plate 2, a prefabricated seam steel plate 4 is fixed between the two third side plates 3, the three are connected into a whole, a bottom plate 5 is fixed at the bottoms of the first arc side plate 1 and the second arc side plate 2, the side surfaces of the bottom plate 5 are flatly attached to the inner side surfaces of the two third side plates 3, a semicircular arc mold is formed by the first arc side plate 1 and the second arc side plate 2 together, and sealant is arranged at each seam in the mold.
In this embodiment, a groove is formed on the first arc side plate 1, a boss is formed on the second arc side plate 2, the boss of the second arc side plate 2 is inserted into the groove of the first arc side plate 1, and is fixed into a section of integral arc by using a bolt;
Further, the first arc side plate 1 includes a first arc plate 101, a groove is formed on an end surface of one end of the first arc plate 101 from top to bottom, a first upper plate 102, a first lower plate 103, a first middle connecting plate 104 and a first side connecting plate 105 are respectively disposed on an outer arc side of the first arc plate 101, end surfaces of the first arc plate 101 and the first side connecting plate are flat with end surfaces of the first arc plate 101, and bolt holes are formed on the first lower plate 103, the first middle connecting plate 104 and the first side connecting plate 105;
Further, the height of the second arc side plate 2 is the same as that of the first arc side plate 1, the second arc side plate 2 comprises a second arc plate 201, a boss is arranged on the end face of one end of the second arc plate 201 from top to bottom, the boss of the second arc plate 201 is inserted and assembled in a groove of the first arc plate 101, the structure is the same as that of the first arc side plate 1, a second upper plate 202, a second lower plate 203, a second middle connecting plate 204 and a second side connecting plate 205 are respectively arranged on the outer arc side of the second arc plate 201, the end faces of the second upper plate 202, the second lower plate 203, the second middle connecting plate 204 and the second side connecting plate 205 are all flat with the end face of the first arc plate 101, and bolt holes are respectively arranged on the second lower plate 203, the second middle connecting plate 204 and the second side connecting plate 205, and the first arc side plate 1 and the second arc side plate 2 are fixedly connected into a whole through bolt holes on the first middle connecting plate 104 and the second middle connecting plate 204 in a screwed manner;
Further, bolt holes are formed at two ends of the third side plate 3, one end of the third side plate is connected and fixed with the first side connecting plate 105 into a whole, and the other end of the third side plate is connected and fixed with the second side connecting plate 205 into a whole;
Further, the prefabricated seam steel plate 4 comprises a vertical plate 401 and a transverse plate 402 which are rigidly and vertically fixed into a whole, and a handle 403 fixed on the transverse plate 402, wherein the vertical plate 401 is inserted into a middle gap of the two third side plates 3, extends into a die, and is provided with two groups of bolt holes, and the transverse plate 402 is respectively connected with and fixed with the other ends of the two third side plates 3 and is connected and fixed into a whole;
Further, the bottom plate 5 is semicircular, the end faces of the straight chord sections are flatly attached to the inner side faces of the two third side plates 3, the arc section sides are provided with arc-shaped bosses, the outer side faces of the bosses are flatly attached to the inner cambered surfaces of the first arc plate 101 and the second arc plate 201, the tread on the outer side of each boss is provided with a bolt hole, and the bottom plate 5 is connected and fixed with the first arc side plate 1 and the second arc side plate 2 into a whole through the bolt holes;
Further, the bottom surface of the bottom plate 5 is perpendicular to the inner and outer cambered surfaces of the first cambered plate 101 and the second cambered plate 201.
The specific use is as follows: inserting the boss of the second arc side plate 2 into the groove of the first arc side plate 1, loading bolts on the second middle connecting plate 104 and the second middle connecting plate 204 to connect and fix the second arc side plate 2 and the bottom plate 5 into a whole, assembling the first arc side plate 1, the second arc side plate 2 and the bottom plate 5, installing the third side plate 3 and the prefabricated seam steel plate 4, after the die assembly is firmly connected, coating sealant at each seam in the die, pouring after the sealant is condensed, taking down the connecting bolts between the third side plate 3 and the prefabricated seam steel plate 4 after the initial setting of concrete, pulling out the prefabricated seam steel plate 4, and then removing the third side plate 3, the second arc side plate 2, the first arc side plate 1 and the bottom plate 5 one by one to obtain a concrete test piece required by a test.
In a preferred scheme, a groove is formed in the first arc side plate 1, a boss is arranged on the second arc side plate 2, the boss of the second arc side plate 2 is inserted into the groove of the first arc side plate 1, and is fixed into a section of integral arc by bolts; the arrangement ensures that the first arc side plate 1 and the second arc side plate 2 are connected more firmly and tightly, and further ensures the compactness of the poured test piece.
In a preferred embodiment, bolt holes are formed at two ends of the third side plate 3, one end of the third side plate is connected and fixed with the first side connecting plate 105 into a whole, and the other end of the third side plate is connected and fixed with the second side connecting plate 205 into a whole; the prefabricated seam steel plate 4 comprises a vertical plate 401 and a transverse plate 402 which are rigidly and vertically fixed into a whole, and a handle 403 fixed on the transverse plate 402, wherein the vertical plate 401 is inserted into a middle gap of two third side plates 3, extends into a die, and is provided with two groups of bolt holes which are respectively connected with and fixed with the other ends of the two third side plates 3, and is connected and fixed into a whole; the device ensures that the inside of the mould is firmly connected and combined into a whole, is convenient to install and disassemble, and also realizes the manufacture of the three-point bending semicircular disc test piece with the prefabricated crack, thereby being capable of researching the influence of various factors on the concrete fracture performance in the construction process.
In the preferred scheme, the bottom plate 5 is semicircular, the end faces of the straight chord sections are flatly attached to the inner side faces of the two third side plates 3, the arc section sides are provided with arc-shaped bosses, the outer side faces of the bosses are flatly attached to the inner cambered surfaces of the first arc plate 101 and the second arc plate 201, the tread on the outer side of each boss is provided with a bolt hole, and the bottom plate 5 is connected and fixed with the first arc side plate 1 and the second arc side plate 2 into a whole through the bolt holes; the arrangement ensures that the die is effectively connected and fixed into a whole, and further ensures the compactness of the poured test piece.
In a preferred scheme, the bottom surface of the bottom plate 5 is vertical to the inner and outer cambered surfaces of the first cambered plate 101 and the second cambered plate 201; the arrangement ensures the stability of the casting process of the die.
In conclusion, the utility model has the advantages of simple structure of each part, good tightness, strong operability, good stability and cost saving, simultaneously realizes the direct manufacture of the three-point bending half-disc test piece with the prefabricated crack, provides conditions for the follow-up development of the half-disc three-point bending test, and has high popularization value, and the influence of each factor on the concrete fracture performance is researched.
Claims (8)
1. A pouring die for measuring concrete fracture performance by a semicircular disc three-point bending method is characterized in that: including first arc curb plate (1) and second arc curb plate (2), reuse bolt fastening one section holistic arc behind first arc curb plate (1) and the grafting of second arc curb plate (2), the arc inboard of first arc curb plate (1) and second arc curb plate (2) is fixed with third curb plate (3) respectively, be fixed with prefabricated seam steel sheet (4) between two third curb plates (3), link the three as an organic whole, the bottom of first arc curb plate (1) and second arc curb plate (2) is fixed with bottom plate (5), bottom plate (5) side is leveled with the medial surface of two third curb plates (3), they form a semicircle curved mould with first arc curb plate (1) and second arc curb plate (2) together, each seam crossing in the mould is provided with the sealant.
2. The casting mold for measuring the breaking property of concrete by using a semicircular disc three-point bending method according to claim 1, wherein the casting mold comprises the following components in percentage by weight: the novel arc welding device is characterized in that a groove is formed in the first arc side plate (1), a boss is arranged on the second arc side plate (2), the boss of the second arc side plate (2) is inserted into the groove of the first arc side plate (1), and the boss is fixed into a section of integral arc by bolts.
3. The casting mold for measuring the breaking property of concrete by using a semicircular disc three-point bending method according to claim 2, wherein the casting mold comprises the following components in percentage by weight: the first arc curb plate (1) is provided with the recess including first arc board (101) from the top down on first arc board (101) one end terminal surface, and first arc board (101) outer arc side is provided with first upper plate (102), first hypoplastron (103), first intermediate junction board (104) and first side connecting plate (105) respectively, and their terminal surface is all level with the terminal surface of first arc board (101), all is provided with the bolt hole on first hypoplastron (103), first intermediate junction board (104) and first side connecting plate (105).
4. A casting mould for measuring the breaking property of concrete by a semicircular disc three-point bending method according to claim 3, wherein: the utility model provides a high with first arc curb plate (1) of second arc curb plate (2), second arc curb plate (2) are provided with the boss from the top down on second arc curb plate (201) one end terminal surface, the boss of second arc curb plate (201) inserts the assembly in the recess of first arc curb plate (101), the structure is with first arc curb plate (1), second arc curb plate (201) outer arc side is provided with second upper plate (202) respectively, second hypoplastron (203), second intermediate junction board (204) and second side connecting plate (205), their terminal surface is all level with the terminal surface of first arc board (101), all be provided with the bolt hole on second hypoplastron (203), second intermediate junction board (204) and second side connecting plate (205), first arc curb plate (1) and second arc curb plate (2) are fixed as an organic wholely through the bolt hole spiro union on first intermediate junction board (104) and the second intermediate junction board (204).
5. The casting mold for measuring the breaking property of concrete by using a semicircular disc three-point bending method according to claim 4, wherein the casting mold comprises the following components in parts by weight: the two ends of the third side plate (3) are respectively provided with a bolt hole, one end of the third side plate is connected and fixed with the first side connecting plate (105) into a whole, and the other end of the third side plate is connected and fixed with the second side connecting plate (205) into a whole.
6. The casting mold for measuring the breaking property of concrete by using the semicircular disc three-point bending method according to claim 5, wherein the casting mold comprises the following components in parts by weight: the prefabricated seam steel plate (4) comprises a vertical plate (401) and a transverse plate (402) which are rigidly and vertically fixed into a whole, and a handle (403) fixed on the transverse plate (402), wherein the vertical plate (401) is inserted into a middle gap of two third side plates (3) and extends into a die, two groups of bolt holes are formed in the transverse plate (402), and the other ends of the two third side plates (3) are respectively connected and fixed into a whole.
7. The casting mold for measuring the breaking property of concrete by using a semicircular disc three-point bending method according to claim 6, wherein the casting mold comprises the following components in parts by weight: the bottom plate (5) is semicircular, the end face of the straight chord section is flatly attached to the inner side faces of the two third side plates (3), arc-shaped bosses are arranged on the arc section sides, the outer side faces of the bosses are flatly attached to the inner cambered surfaces of the first arc plates (101) and the second arc plates (201), bolt holes are formed in the tread on the outer sides of the bosses, and the bottom plate (5) is connected and fixed with the first arc side plates (1) and the second arc side plates (2) into a whole through the bolt holes.
8. The casting mold for measuring the breaking property of concrete by using a semicircular disc three-point bending method according to claim 6, wherein the casting mold comprises the following components in parts by weight: the bottom surface of the bottom plate (5) is vertical to the inner arc surface and the outer arc surface of the first arc plate (101) and the second arc plate (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322460476.0U CN220945876U (en) | 2023-09-11 | 2023-09-11 | Pouring die for measuring concrete fracture performance by semicircular disc three-point bending method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322460476.0U CN220945876U (en) | 2023-09-11 | 2023-09-11 | Pouring die for measuring concrete fracture performance by semicircular disc three-point bending method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220945876U true CN220945876U (en) | 2024-05-14 |
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ID=90976596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322460476.0U Active CN220945876U (en) | 2023-09-11 | 2023-09-11 | Pouring die for measuring concrete fracture performance by semicircular disc three-point bending method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220945876U (en) |
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2023
- 2023-09-11 CN CN202322460476.0U patent/CN220945876U/en active Active
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