CN112518978A - Positioning method and positioning tool for T-beam sidewalk embedded part - Google Patents
Positioning method and positioning tool for T-beam sidewalk embedded part Download PDFInfo
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- CN112518978A CN112518978A CN202011304479.XA CN202011304479A CN112518978A CN 112518978 A CN112518978 A CN 112518978A CN 202011304479 A CN202011304479 A CN 202011304479A CN 112518978 A CN112518978 A CN 112518978A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 62
- 239000010959 steel Substances 0.000 claims description 62
- 239000004567 concrete Substances 0.000 abstract description 27
- 238000009434 installation Methods 0.000 abstract description 10
- 238000012937 correction Methods 0.000 abstract description 7
- 239000002131 composite material Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000009415 formwork Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000011513 prestressed concrete Substances 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000011208 reinforced composite material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Classifications
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- 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
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0056—Means for inserting the elements into the mould or supporting them in the mould
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to a positioning method and a positioning tool for an embedded part of a T-beam sidewalk, which are used for avoiding position errors of the embedded part caused by splicing prefabricated templates of the T-beam and position deviation of the embedded part caused by vibrating concrete by adopting an independent tool positioning mode. Therefore, the positioning precision of the embedded part is ensured, the internal stress when the parts of the sidewalk are installed and the structural damage caused by cutting and reaming are reduced, and the safety of the sidewalk structure is improved; the correction work of the embedded part is reduced, and the installation efficiency of the sidewalk is improved; the straightness and the attractiveness of the sidewalk are improved.
Description
Technical Field
The invention relates to the field of railway and road and bridge construction, in particular to a positioning method and a positioning tool for T-beam sidewalk embedded parts.
Background
When a railway concrete T beam is prefabricated, embedded parts used for installing sidewalks need to be prefabricated in concrete, and the currently used embedded part positioning technology is as follows: the U-shaped opening is formed in the prefabricated formwork of the railway concrete T-beam for simple positioning. When the railway concrete T-beam prefabricated formwork is assembled, a certain error exists, concrete needs to be vibrated in the railway concrete T-beam prefabrication process, the vibration can cause deformation of the railway concrete T-beam prefabricated formwork and position deviation of embedded parts of sidewalks from a predetermined position, and actual measurement shows that the embedded parts are too simple due to the fixing mode of positioning, so that the embedded parts can generate large position errors in six degrees of freedom of space. These errors accumulate to cause the embedded parts to be corrected when the sidewalk is installed, but the correction reference is difficult to determine, and each embedded part has position errors with six degrees of freedom in space, so that the correction is very difficult and the cost is high. If no correction is made, a portion of the connection needs to be made on-site and forcibly installed. After the sidewalk is installed, the structure has internal stress, and certain potential safety hazards can be generated; the installed sidewalk presents a space curve and has poor appearance! In conclusion, the poor position precision of the embedded part of the sidewalk causes difficult and easy installation of the sidewalk and poor straightness, and further solves the fundamental problem to be solved urgently.
Through patent retrieval, the following patents mainly exist, which have a certain relationship with the invention:
1. the invention relates to a concrete beam composite material sidewalk, which is a novel sidewalk of reinforced concrete for railways and highways, prestressed concrete T beams and plate beams, in particular to a concrete beam sidewalk, the main components of which are all made of fiber reinforced composite materials and the advantages of all component materials of the composite materials are fully utilized, and the invention is named as ' 201710060792.5 ', 2017.01.25 ' on the application date, CN 106592415A ' on the publication date, 2017.04.26 ' on the publication date, and is named as ' concrete beam composite material sidewalk ' and the patent of the applicant of ' railway building institute of China railway science research institute of China ' China. Including standard module and beam-ends module, the beam-ends module is located the both ends of concrete beam, is equipped with a plurality of standard module between the beam-ends module at both ends, still can include beam-ends platform module of keeping out a car, the one end that concrete beam was located to the beam-ends platform module replacement beam-ends module of keeping out a car. The invention can reduce the second-stage dead load of the bridge, improve the bearing capacity of the bridge and reduce the maintenance cost of auxiliary facilities of the bridge deck.
2. The utility model relates to a concrete beam composite material pavement, it is the novel pavement of railway and highway reinforced concrete and prestressed concrete T roof beam, plate-type roof beam that application number is "201720101550.1", application date is "2017.01.25", publication number is "CN 206581128U", publication date is "2017.10.24", the name is "a concrete beam composite material pavement", the applicant is "China railway science institute railway building institute", this utility model relates to a concrete beam composite material pavement, it is a railway and highway reinforced concrete and prestressed concrete T roof beam, the novel pavement of plate-type roof beam, especially relate to a concrete beam pavement that a main component all adopted fibre reinforced composite material, make full use of each component material advantage of composite material. Including standard module and beam-ends module, the beam-ends module is located the both ends of concrete beam, is equipped with a plurality of standard module between the beam-ends module at both ends, still can include beam-ends platform module of keeping out a car, the one end that concrete beam was located to the beam-ends platform module replacement beam-ends module of keeping out a car. The utility model discloses can reduce the second phase dead load of bridge, improve the bearing capacity of bridge, and the maintenance cost of maintenance of the attached facility of reducible bridge floor.
None of the above patents relates to a positioning method and a positioning tool for embedded parts of T-beam sidewalks.
Disclosure of Invention
The invention aims to solve the technical problem of providing a positioning method and a positioning tool for an embedded part, which have the advantages of high position precision, simple and convenient installation and good straightness aiming at the defects in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a method for positioning an embedded part of a T-beam sidewalk is characterized in that the positioning precision of the embedded part is improved by changing the existing prefabricated template positioning mode of the embedded part into an independent tool positioning mode. This kind of adopt independent frock locate mode, can solve three technical problem simultaneously: the first is the problem that the built-in fitting position precision that leads to is assembled by T roof beam prefabricated template is poor, and its second is the problem that the built-in fitting position skew that the T roof beam prefabricated template warp and leads to when vibrating the concrete, and the third is the problem that leads to the built-in fitting skew because of pushing of concrete when vibrating the concrete to the built-in fitting positioning accuracy has been improved.
Furthermore, the independent tool positioning mode is that independent positioning beams are arranged in parallel along the length direction of the T-shaped beam and are detachably connected with the embedded part through positioning parts arranged on the positioning beams at intervals. The positioning beam has enough rigidity and straightness and is independent of the T beam prefabricated template, so that the positioning precision of the embedded part is guaranteed.
Furthermore, the positioning beam is made of a full-length single-piece section material with the same length as the T beam, so that errors caused by splicing the positioning beam are avoided, and the positioning accuracy is ensured.
The invention also relates to a T-beam sidewalk embedded part positioning tool which comprises positioning beams, wherein the positioning beams are arranged in parallel along the length direction of the T-beam, positioning parts are arranged along the length direction of the positioning beams at intervals, and the embedded part is detachably connected with the positioning beams through the positioning parts. And the positioning precision of the embedded part is ensured by positioning through the positioning beam. The internal stress when the sidewalk parts are installed and the structural damage caused by cutting and reaming are reduced, and the safety of the sidewalk structure is improved; the correction work of the embedded part is reduced, and the installation efficiency of the sidewalk is improved; the straightness and the attractiveness of the sidewalk are improved.
Further, the locating beam is an H-shaped steel beam and comprises: h shaped steel pterygoid lamina and H shaped steel web, locating part is the locating plate mounting hole of interval setting on the H shaped steel pterygoid lamina.
Furthermore, the positioning plate mounting holes are divided into four groups, and the distance between each group is consistent with the distance between the embedded parts, so that the positioning precision is ensured.
Furthermore, the positioning tool further comprises a positioning plate, and the embedded part is detachably connected with the H-shaped steel beam through the positioning plate.
Further, the locating plate is a T-shaped steel plate and comprises: the T-shaped steel plate is connected with the H-shaped steel beam through a positioning plate mounting hole and a positioning beam connecting hole by a bolt assembly; the T-shaped steel web is provided with an embedded part mounting hole, and the bolt assembly is connected with the embedded part through the embedded part mounting hole.
Furthermore, the number of the embedded part mounting holes is 4, and at least 2 of the embedded part mounting holes correspond to screw holes in the embedded part, so that the positioning accuracy is guaranteed.
Further, the thickness of the T-shaped steel web is not less than that of the embedded part. The deformation of the T-shaped steel web plate is avoided, and the positioning accuracy of the embedded part is guaranteed.
The invention has the beneficial effects that: through adopting independent frock locate mode, avoid T roof beam prefabricated template to assemble the built-in fitting position error that causes to and the built-in fitting position deviation that the concrete that vibrates caused. Therefore, the positioning precision of the embedded part is ensured, the internal stress when the parts of the sidewalk are installed and the structural damage caused by cutting and reaming are reduced, and the safety of the sidewalk structure is improved; the correction work of the embedded part is reduced, and the installation efficiency of the sidewalk is improved; the straightness and the attractiveness of the sidewalk are improved.
Drawings
FIG. 1 is a schematic front view of the structure of embodiment 1,
FIG. 2 is a schematic top view of the structure of the embodiment 1,
FIG. 3 is a schematic side view showing the structure of embodiment 1,
FIG. 4 is a front view of a positioning plate according to embodiment 1,
figure 5 is a plan view of the positioning plate of embodiment 1,
FIG. 6 is a side view of a positioning plate according to embodiment 1,
figure 7 is a schematic front view of the positioning beam of embodiment 1,
figure 8 is a schematic side view of the alignment beam of example 1,
FIG. 9 is a schematic front view showing the structure of the embodiment 2,
FIG. 10 is a schematic top view showing the structure of the embodiment 2,
FIG. 11 is a schematic side view showing the structure of the embodiment 2,
figure 12 is a schematic view of a front view of a T-beam with embedments,
figure 13 is a schematic side view of a T-beam with embedments,
figure 14 is a schematic top view of a T-beam with embedments,
in the figure: the steel plate positioning structure comprises 1-T beam, 2-embedded part, 21-mounting screw hole, 3-T section steel, 31-T section steel wing plate, 311-positioning beam connecting hole, 32-T section steel web plate, 321-embedded part mounting hole, 4-H section steel beam, 41-H section steel wing plate, 411-positioning plate mounting hole, 42-H section steel web plate, 5-bolt assembly, 6-angle steel, 7-square steel beam and 71-fabrication hole.
Detailed Description
The invention is further described by the following specific embodiments in conjunction with the attached drawings:
the existing embedded part 2 is positioned in a manner that the embedded part 2 is fixed on a prefabricated template. Errors are generated in the positions of the embedded parts 2 when the T-beam prefabricated templates are assembled; when the concrete is vibrated, the position of the embedded part 2 can deviate from a preset position due to the deformation of the T-beam prefabricated template; and the embedded part 2 can be deviated due to the pushing of the concrete. Thereby causing poor positioning accuracy of the embedment 2 and deviation from a predetermined position. When the sidewalk is installed, the embedded part 2 needs to be corrected, and field assembly or even forced installation is needed. The pedestrian path has structural internal stress after installation, low installation efficiency and poor appearance.
The positioning method of the T-beam sidewalk embedded part is shown in figures 1 to 3: the invention sets an independent positioning beam parallel to the T-beam prefabricated template outside the T-beam prefabricated template, and the positioning beam is connected with the high embedded part 2 for positioning. The positioning beam has enough rigidity and straightness and is independent of the T beam prefabricated template, so that the positioning precision of the embedded part 2 is guaranteed, and the technical problem is solved.
Fig. 4 to 8 show an example 1 of a positioning tool for embedded parts of a T-beam sidewalk: comprises a positioning beam and a positioning plate.
The positioning beam can adopt I-shaped or H-shaped steel or rectangular steel pipes, aluminum alloy profiles or profiles made of other materials. Usually, a through long single-piece section bar with the same length as the T-shaped beam is adopted, when conditions are limited, the positioning beam can be spliced through multiple sections, and high-precision firm connection is also needed during splicing, so that the positioning beam after splicing has enough rigidity and straightness. The positioning beam in this embodiment is an H-shaped steel beam 4, including: h shaped steel pterygoid lamina 41 and H shaped steel web 42, the locating component is the locating plate mounting hole 411 that the interval set up on H shaped steel pterygoid lamina 41. The positioning plate mounting holes 411 are in a group of four, and the distance between each group is consistent with the distance between the embedded parts 2.
The locating plate adopts T shaped steel board 3, includes: t shaped steel pterygoid lamina 31 and T shaped steel web 32, be provided with locating beam connecting hole 311 on the T shaped steel pterygoid lamina 41, the aperture and the position of locating beam connecting hole 311 correspond with the aperture and the position of locating plate mounting hole 411, bolt assembly 5 passes through locating plate mounting hole 411 and locating beam connecting hole 311, is connected T shaped steel board 3 and H shaped steel roof beam 4, should guarantee to make wherein more than three hole can pass and the construction bolt during the connection at least. An embedded part mounting hole 321 is formed in the T-shaped steel web 32, and the bolt assembly 5 is connected with the embedded part 2 through the embedded part mounting hole 321. The hole diameter and the position of the embedded part mounting hole 321 correspond to the hole diameter and the position of the mounting screw hole 21 on the embedded part 2, and at least more than two holes can penetrate through and mount bolts during connection. The thickness of the T-shaped steel web plate 32 is not less than that of the embedded part 2. So as to ensure that the web 32 of the T-shaped steel does not deform, thereby ensuring the positioning precision of the embedded part 2.
An embodiment 2 of the positioning tool for embedded parts of a T-beam sidewalk is shown in FIGS. 9 to 11: including square steel roof beam 7 and angle steel 6, a side of square steel roof beam 7 is provided with the screw along 7 length direction on the interval of square steel roof beam, is equipped with the fabrication hole that is used for installing bolt assembly 5 opposite that is equipped with the screw. Screw holes are arranged on two side edges of the angle steel 6. The embedded part 2 is detachably connected with the square steel beam 7 through angle steel 6.
The implementation steps of the invention are as follows:
the method comprises the following steps: mounting the H-shaped steel beam 4 along the direction parallel to the T beam;
step two: connecting the T-shaped steel plate 3 with the H-shaped steel beam 4 by sequentially penetrating through the positioning plate mounting hole 411 and the positioning beam connecting hole 311 by using a bolt assembly 5;
step three: sequentially penetrating the embedded part mounting holes 321 and the mounting screw holes 21 on the embedded part 2 by using the bolt assemblies 5, connecting the T-shaped steel plate 3 with the embedded part 2, and extending the embedded part of the embedded part 2 into the T-beam prefabricated template;
step four: pouring and vibrating concrete into the T-beam prefabricated template;
step five: and (3) dismantling the H-shaped steel beam 4, the T-shaped steel plate 3 and the T-shaped beam prefabricated template to obtain the T-shaped beam embedded with the embedded part 2 as shown in figures 12 to 14.
The T-beam manufactured by the positioning method and the positioning tool has the advantages that the positioning precision of the embedded part 2 of the sidewalk is high, the sidewalk does not need to be corrected or cut and reamed when being installed, the safety of the sidewalk structure is improved, the sidewalk installation efficiency is improved, and the straightness and the attractiveness of the sidewalk are improved.
In summary, the following steps: the invention has the beneficial effects that: through adopting independent frock locate mode, avoid T roof beam prefabricated template to assemble the built-in fitting position error that causes to and the built-in fitting position deviation that the concrete that vibrates caused. Therefore, the positioning precision of the embedded part is ensured, the internal stress when the parts of the sidewalk are installed and the structural damage caused by cutting and reaming are reduced, and the safety of the sidewalk structure is improved; the correction work of the embedded part is reduced, and the installation efficiency of the sidewalk is improved; the straightness and the attractiveness of the sidewalk are improved.
The above embodiments are provided for illustrative purposes only and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should fall within the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (10)
1. A method for positioning T-beam sidewalk embedded parts is characterized by comprising the following steps: the positioning precision of the embedded part (2) is improved by changing the existing prefabricated template positioning mode of the embedded part (2) into an independent tool positioning mode.
2. The method for positioning the embedded part of the T-beam sidewalk according to claim 1, wherein the method comprises the following steps: the independent tool positioning mode is that independent positioning beams are arranged in parallel along the length direction of the T beam and detachably connected with the embedded part (2) through positioning parts arranged on the positioning beams at intervals.
3. The method for positioning the embedded part of the T-beam sidewalk according to claim 2, wherein the method comprises the following steps: the positioning beam is a through long single-piece section with the same length as the T beam.
4. A positioning tool for realizing the positioning method of the T-beam sidewalk embedded part as claimed in any one of claims 1 to 3, is characterized in that: the positioning tool comprises a positioning beam, the positioning beam is arranged in parallel along the length direction of the T beam, positioning parts are arranged at intervals along the length direction of the positioning beam, and the embedded part (2) is detachably connected with the positioning beam through the positioning parts.
5. The T-beam sidewalk embedded part positioning tool as claimed in claim 4, wherein the T-beam sidewalk embedded part positioning tool comprises: the locating beam is H shaped steel roof beam (4), includes: h shaped steel pterygoid lamina (41) and H shaped steel web (42), the locating part is locating plate mounting hole (411) that the interval set up on H shaped steel pterygoid lamina (41).
6. The T-beam sidewalk embedded part positioning tool as claimed in claim 5, wherein: the positioning plate mounting holes (411) are in a group of four, and the distance between each group is consistent with the distance between the embedded parts (2).
7. The T-beam sidewalk embedded part positioning tool as claimed in claim 6, wherein: the positioning tool further comprises a positioning plate, and the embedded part (2) is detachably connected with the H-shaped steel beam (4) through the positioning plate.
8. The T-beam sidewalk embedded part positioning tool as claimed in claim 7, wherein: the locating plate is T shaped steel board (3), includes: the T-shaped steel plate connecting structure comprises a T-shaped steel wing plate (31) and a T-shaped steel web plate (32), wherein a positioning beam connecting hole (311) is formed in the T-shaped steel wing plate (41), and a T-shaped steel plate (3) is connected with an H-shaped steel beam (4) through a positioning plate mounting hole (411) and the positioning beam connecting hole (311) by a bolt assembly (5); an embedded part mounting hole (321) is formed in the T-shaped steel web (32), and the bolt assembly (5) is connected with the embedded part (2) through the embedded part mounting hole (321).
9. The T-beam sidewalk embedded part positioning tool of claim 8, which is characterized in that: the number of the embedded part mounting holes (321) is 4, wherein the number of the embedded part mounting holes is not less than 2, and the positions of the embedded part mounting holes correspond to the mounting screw holes (21) on the embedded part (2).
10. The T-beam sidewalk embedded part positioning tool of claim 9, which is characterized in that: the thickness of the T-shaped steel web plate (32) is not less than that of the embedded part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011304479.XA CN112518978A (en) | 2020-11-19 | 2020-11-19 | Positioning method and positioning tool for T-beam sidewalk embedded part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011304479.XA CN112518978A (en) | 2020-11-19 | 2020-11-19 | Positioning method and positioning tool for T-beam sidewalk embedded part |
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| CN112518978A true CN112518978A (en) | 2021-03-19 |
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| CN206815540U (en) * | 2017-06-09 | 2017-12-29 | 廖永基 | A kind of positioner for concrete structure built-in fitting |
| CN207620109U (en) * | 2017-11-16 | 2018-07-17 | 南京东捷新材料科技有限公司 | A kind of assembled steel reinforced concrete frame dry type connecting node |
| CN208615040U (en) * | 2018-07-06 | 2019-03-19 | 中建科技河南有限公司 | A kind of adjustable built-in fitting fixing tool |
| CN211172422U (en) * | 2019-11-01 | 2020-08-04 | 中建八局第三建设有限公司 | U-shaped beam outer flange embedded part fixing device |
-
2020
- 2020-11-19 CN CN202011304479.XA patent/CN112518978A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202380780U (en) * | 2011-08-26 | 2012-08-15 | 中国二十冶集团有限公司 | Suspension embedding fixing device for paper machine pre-embedded parts |
| JP2016022687A (en) * | 2014-07-23 | 2016-02-08 | 株式会社佐藤工業所 | Implanting member fixing device |
| CN106759457A (en) * | 2017-03-23 | 2017-05-31 | 中国二十二冶集团有限公司 | The installation method of cantilever design high-accuracy built-in fitting |
| CN206815540U (en) * | 2017-06-09 | 2017-12-29 | 廖永基 | A kind of positioner for concrete structure built-in fitting |
| CN207620109U (en) * | 2017-11-16 | 2018-07-17 | 南京东捷新材料科技有限公司 | A kind of assembled steel reinforced concrete frame dry type connecting node |
| CN208615040U (en) * | 2018-07-06 | 2019-03-19 | 中建科技河南有限公司 | A kind of adjustable built-in fitting fixing tool |
| CN211172422U (en) * | 2019-11-01 | 2020-08-04 | 中建八局第三建设有限公司 | U-shaped beam outer flange embedded part fixing device |
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Application publication date: 20210319 |