CN111267207A - Device for manufacturing test piece section for detecting broken wire of Prestressed Concrete Cylinder Pipe (PCCP) - Google Patents
Device for manufacturing test piece section for detecting broken wire of Prestressed Concrete Cylinder Pipe (PCCP) Download PDFInfo
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- CN111267207A CN111267207A CN202010113745.4A CN202010113745A CN111267207A CN 111267207 A CN111267207 A CN 111267207A CN 202010113745 A CN202010113745 A CN 202010113745A CN 111267207 A CN111267207 A CN 111267207A
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- test piece
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- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 134
- 239000010959 steel Substances 0.000 claims abstract description 134
- 239000004567 concrete Substances 0.000 claims abstract description 28
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 9
- 239000011241 protective layer Substances 0.000 claims abstract description 8
- 238000009415 formwork Methods 0.000 claims description 30
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 6
- 239000002023 wood Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/24—Unitary mould structures with a plurality of moulding spaces, e.g. moulds divided into multiple moulding spaces by integratable partitions, mould part structures providing a number of moulding spaces in mutual co-operation
- B28B7/241—Detachable assemblies of mould parts providing only in mutual co-operation a number of complete moulding spaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
- B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0094—Moulds for concrete test samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The invention discloses a device for manufacturing a test piece section for detecting the broken wire of a Prestressed Concrete Cylinder Pipe (PCCP), which comprises a steel outer template, a steel side template, a connecting bolt, a steel inner template and a steel sheet. The two steel outer templates and the two steel side templates are connected to form a frame body, and the inside of the frame body is divided into three spaces by the steel inner templates and the steel sheets. When the PCCP test piece section is manufactured, outer tube core concrete and inner tube core concrete are poured at the same time, the steel inner template is removed, a plurality of fractured prestressed steel wires and intact prestressed steel wires are adhered to the outer tube core concrete, a mortar protective layer is poured, and finally the PCCP test piece section is obtained after demolding. The size of the device can be flexibly customized, and PCCP test sections with different sizes can be manufactured; the device can be poured in a test site, and the test cost and time can be effectively saved.
Description
Technical Field
The invention relates to a device for manufacturing a test piece section for detecting the broken wire of a Prestressed Concrete Cylinder Pipe (PCCP).
Background
At present, the phenomenon of pipe bursting of the PCCP is frequently caused in the global scope, and the most important reason for the phenomenon is insufficient bearing capacity caused by that the fracture quantity of the prestressed steel wires is accumulated to a certain degree. The detection technology aiming at PCCP prestressed steel wire fracture has become the popular research direction of a plurality of scientific researchers. In order to verify the effectiveness of the broken wire detection technology, a large number of tests need to be completed before the technology is popularized and applied. One of the main difficulties in the implementation of the test is that the PCCP finished product, especially the large-caliber PCCP finished product, is high in purchase cost, inconvenient to transport and difficult to hoist, so that the test period is long. Therefore, if the test piece section can be customized according to the actual inner diameter PCCP and the rupture detection test of the prestressed wire under the pipe diameter is completed, the research and development of the detection technology and equipment are greatly promoted.
Nowadays, many researches on the PCCP broken wire detection technology and equipment are carried out in the PCCP burying field or the PCCP production field, which can affect the normal operation of other works. At present, no device for manufacturing PCCP test piece sections for wire breakage detection exists. For the requirement, a device which can meet the size requirements of PCCPs with various calibers and can realize the pouring of the combined material pipeline of the PCCP needs to be designed.
Disclosure of Invention
The invention aims to provide a device for manufacturing a test piece section for detecting the broken wire of a Prestressed Concrete Cylinder Pipe (PCCP).
The technical scheme adopted for achieving the purpose of the invention is that the device for manufacturing the test piece section for detecting the broken wire of the Prestressed Concrete Cylinder Pipe (PCCP) comprises a steel outer template, a steel side template, a connecting bolt, a steel inner template and a steel sheet.
The steel outer formworks are arch plates which are vertically placed, the two steel outer formworks are arranged at intervals, and two straight line edges of the steel outer formworks are perpendicular to the horizontal plane. The steel side formworks are rectangular plates which are vertically arranged, the two steel side formworks are connected to the two steel outer formworks through a plurality of connecting bolts, and an upper end and a lower end of each frame body which is open and hollow are formed.
Every interval arrangement has draw-in groove I and draw-in groove II on the inner wall of steel side form board, and draw-in groove I and the equal vertical setting of draw-in groove II. The clamping grooves I of the two steel side templates are on the same vertical plane, and the clamping grooves II of the two steel side templates are on the same vertical plane.
The steel inner formworks and the steel sheets are both arched, two vertical edges of the steel inner formworks are inserted into the clamping grooves I of the two steel side formworks respectively, and two vertical edges of the steel sheets are inserted into the clamping grooves II of the two steel side formworks respectively.
The upper edge of the steel inner template is connected with a handle.
When the test piece section is manufactured, outer tube core concrete between the steel inner template and the steel sheet and inner tube core concrete between the steel sheet and the steel outer template are poured at the same time, and after the outer tube core concrete and the inner tube core concrete are formed, a plurality of broken prestressed wires and intact prestressed wires are adhered to the side wall of the outer tube core concrete; and pouring a mortar protective layer between the steel inner template and the steel outer template, and finally removing the template to form a test piece section.
Furthermore, every vertical edge of steel exterior sheathing all is provided with a plurality of bolt holes I, and the both ends of steel side form board all are provided with a plurality of bolt holes II that run through its face.
Bolt hole I and bolt hole II all are provided with the internal thread, a plurality of connecting bolt screw in bolt hole II and bolt hole I.
The invention has the advantages that the size of the steel outer template and the steel side template of the device can be flexibly adjusted and customized, the PCCP test section with a proper size can be manufactured according to the requirement, and the device has good economical efficiency and practicability; the device can pour the pipe core concrete and the mortar protective layer on a test site to manufacture a test section, so that the test cost and time can be effectively saved; the device has the advantages of simple structure, convenient operation and wide application range.
Drawings
FIG. 1 is a schematic view of an apparatus of the present invention;
FIG. 2 is a top view of a PCCP test piece section cast when the device of the present invention is in use;
FIG. 3 is a schematic view of a steel sideform;
FIG. 4 is a schematic view of a steel outer form;
FIG. 5 is a schematic view of the installation of a broken prestressed wire with an intact prestressed wire;
FIG. 6 is a schematic view of a PCCP test piece section after removal of the mold.
In the figure: the steel external template comprises a steel external template 1, a bolt hole I101, a steel side template 2, a clamping groove I201, a clamping groove II 202, a bolt hole II 203, a connecting bolt 3, a steel internal template 4, a handle 401, a steel sheet 5, an external tube core concrete 6, an internal tube core concrete 7, a fracture prestressed steel wire 8, an intact prestressed steel wire 9 and a mortar protective layer 10.
Detailed Description
The present invention is further illustrated by the following examples, but it should not be construed that the scope of the above-described subject matter is limited to the following examples. Various substitutions and alterations can be made without departing from the technical idea of the invention and the scope of the invention is covered by the present invention according to the common technical knowledge and the conventional means in the field.
Example 1:
the embodiment discloses a device for manufacturing a test piece section for detecting the broken wire of a Prestressed Concrete Cylinder Pipe (PCCP), which comprises a steel outer template 1, a steel side template 2, a connecting bolt 3, a steel inner template 4 and a steel sheet 5.
Referring to fig. 1, the steel outer formworks 1 are vertically arranged arch plates, two steel outer formworks 1 are arranged at intervals, and two straight edges of the steel outer formworks 1 are perpendicular to a horizontal plane. The steel side formworks 2 are rectangular plates which are vertically arranged, and the two steel side formworks 2 are connected to the two steel outer formworks 1 through a plurality of connecting bolts 3 to form a framework which is open at the upper end and hollow inside.
Referring to fig. 4, each vertical edge of the steel outer formwork 1 is provided with a plurality of bolt holes i 101, and referring to fig. 3, two ends of the steel side formwork 2 are provided with a plurality of bolt holes ii 203 penetrating through the surface of the steel side formwork.
Bolt hole I101 and bolt hole II 203 all are provided with the internal thread, and a plurality of connecting bolt 3 screw in bolt hole II 203 and bolt hole I101. The connecting bolt 3 is convenient to mount and dismount, so that the die filling and the die stripping are convenient.
Referring to fig. 3, the inner wall of each steel side template 2 is provided with a clamping groove I201 and a clamping groove II 202 at intervals, the clamping grooves I201 and the clamping grooves II 202 are vertically arranged, and the distance between the clamping grooves I201 and the clamping grooves II 202 is adjusted according to the thickness requirements of the outer tube core concrete 6, the inner tube core concrete 7 and the mortar protection layer 10. The two clamping grooves I201 of the two steel side templates 2 are on the same vertical plane, and the two clamping grooves II 202 of the two steel side templates 2 are on the same vertical plane.
Referring to fig. 1 or 2, the steel inner formworks 4 and the steel sheets 5 are both arched, two vertical edges of the steel inner formworks 4 are respectively inserted into the first clamping grooves 201 of the two steel side formworks 2, and two vertical edges of the steel sheets 5 are respectively inserted into the second clamping grooves 202 of the two steel side formworks 2. The steel inner template 4, the steel sheet 5 and the two steel outer templates 1 are bent towards the same side. The steel inner formworks 4 can prevent the outer pipe core concrete 6 from occupying the space of the mortar protective layer 10 during pouring.
In order to ensure that the steel outer template 1 and the steel side template 2 have enough rigidity to resist lateral external pressure generated by poured concrete, the design thickness of the steel outer template 1 and the steel side template 2 is 1cm, and the thickness of the steel inner template 4 and the steel sheet 5 is 2 mm.
The handle 401 is connected to the upper edge of the steel inner template 4 as described with reference to fig. 1.
By controlling the length, the height, the arch radius and the length of the steel external template 1 and the steel side template 2, a PCCP test section with a proper size can be manufactured according to the device.
The use method of the device in the embodiment comprises the following steps:
1) and placing the device for manufacturing the test piece section for detecting the broken wire of the Prestressed Concrete Cylinder Pipe (PCCP) on a wood bottom plate. In order to meet the rigidity requirement, the thickness of the wood bottom plate is more than 1.5 cm.
2) And (3) coating release agents on the inner side of the steel outer template 1, the inner side of the steel side template 2, the two sides of the steel inner template 4 and the wood bottom plate to ensure that no sundries exist in the clamping groove I201 and the clamping groove II 202.
3) And simultaneously pouring outer tube core concrete 6 between the steel inner template 4 and the steel sheet 5 and inner tube core concrete 7 between the steel sheet 5 and the steel outer template 1.
4) And after the outer tube core concrete 6 and the inner tube core concrete 7 are maintained for 18 to 24 hours, pulling out the steel inner template 4 through the handle 401.
5) And adhering a plurality of broken prestressed steel wires 8 and intact prestressed steel wires 9 to the side wall of the outer tube core concrete 6 by using an epoxy-based cementing material. Referring to fig. 5, a plurality of fractured prestressed wires 8 and intact prestressed wires 9 are horizontally arranged, and the fractured prestressed wires 8 and intact prestressed wires 9 are longitudinally arranged at equal intervals.
6) And pouring a mortar protective layer 10 between the steel inner template 4 and the steel outer template 1, and well maintaining.
7) And after the strength of the outer tube core concrete 6, the inner tube core concrete 7 and the mortar protective layer 10 reach the standard, removing the steel outer template 1, the steel side template 2 and the wood bottom plate to form a PCCP test piece section, and referring to fig. 6, the PCCP test piece section is a schematic diagram after the template is removed.
Claims (2)
1. The utility model provides a device for making disconnected silk of prestressing force steel cylinder concrete pipe (PCCP) detects test piece section which characterized in that: the steel outer template comprises a steel outer template (1), a steel side template (2), a connecting bolt (3), a steel inner template (4) and a steel sheet (5);
the steel outer formworks (1) are arch plates which are vertically arranged, the two steel outer formworks (1) are arranged at intervals, and two straight line edges of the steel outer formworks (1) are vertical to a horizontal plane; the steel side formworks (2) are rectangular plates which are vertically arranged, and the two steel side formworks (2) are connected to the two steel outer formworks (1) through a plurality of connecting bolts (3) to form a frame body which is open at the upper end and the lower end and is hollow inside;
the inner wall of each steel side template (2) is provided with a clamping groove I (201) and a clamping groove II (202) at intervals, and the clamping grooves I (201) and the clamping grooves II (202) are both vertically arranged; the clamping grooves I (201) of the two steel side templates (2) are on the same vertical plane, and the clamping grooves II (202) of the two steel side templates (2) are on the same vertical plane;
the steel inner template (4) and the steel sheet (5) are both arched, two vertical edges of the steel inner template (4) are respectively inserted into the clamping grooves I (201) of the two steel side templates (2), and two vertical edges of the steel sheet (5) are respectively inserted into the clamping grooves II (202) of the two steel side templates (2);
the upper edge of the steel inner template (4) is connected with a handle (401);
when a test piece section is manufactured, outer tube core concrete (6) between the steel inner template (4) and the steel sheet (5) and inner tube core concrete (7) between the steel sheet (5) and the steel outer template (1) are poured at the same time, and after the outer tube core concrete (6) and the inner tube core concrete (7) are formed, a plurality of fracture prestressed steel wires (8) and intact prestressed steel wires (9) are adhered to the side wall of the outer tube core concrete (6); and pouring a mortar protective layer (10) between the steel inner template (4) and the steel outer template (1), and finally, removing the mold to form a test piece section.
2. The device for manufacturing the test piece segment for detecting the broken wire of the Prestressed Concrete Cylinder Pipe (PCCP) according to claim 1, wherein: each vertical edge of the steel outer template (1) is provided with a plurality of bolt holes I (101), and two ends of the steel side template (2) are provided with a plurality of bolt holes II (203) penetrating through the surface of the steel side template;
bolt hole I (101) and bolt hole II (203) all are provided with the internal thread, a plurality of connecting bolt (3) screw in bolt hole II (203) and bolt hole I (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010113745.4A CN111267207B (en) | 2020-02-24 | 2020-02-24 | Device for manufacturing Prestressed Concrete Cylinder Pipe (PCCP) broken wire detection test piece section |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010113745.4A CN111267207B (en) | 2020-02-24 | 2020-02-24 | Device for manufacturing Prestressed Concrete Cylinder Pipe (PCCP) broken wire detection test piece section |
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| Publication Number | Publication Date |
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| CN111267207A true CN111267207A (en) | 2020-06-12 |
| CN111267207B CN111267207B (en) | 2024-05-28 |
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| CN202010113745.4A Active CN111267207B (en) | 2020-02-24 | 2020-02-24 | Device for manufacturing Prestressed Concrete Cylinder Pipe (PCCP) broken wire detection test piece section |
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| CN (1) | CN111267207B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115489012A (en) * | 2022-07-05 | 2022-12-20 | 港珠澳大桥管理局 | Preparation tool and method for test block capable of accurately simulating crack defects of bridge |
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| CN102046342A (en) * | 2008-04-02 | 2011-05-04 | 阿迈隆国际公司 | Pressure cast concrete or mortar lined steel pipes and methods of making the same |
| CN201998321U (en) * | 2011-01-24 | 2011-10-05 | 山东龙泉管道工程股份有限公司 | PCCP (prestressed concrete cylinder pipe) armored bell mouth forming die |
| CN102909784A (en) * | 2012-11-06 | 2013-02-06 | 倪志权 | Method and device for producing prestressed concrete cylinder pipe by surfactant |
| CN202846682U (en) * | 2012-11-06 | 2013-04-03 | 倪志权 | Adhesion agent spraying equipment used for producing prestress steel cylinder concrete pipe with adhesion agents |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115489012A (en) * | 2022-07-05 | 2022-12-20 | 港珠澳大桥管理局 | Preparation tool and method for test block capable of accurately simulating crack defects of bridge |
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| CN111267207B (en) | 2024-05-28 |
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