CN107794851A - The preparation method of prestressing force RPC acoustic barrier unit board - Google Patents
The preparation method of prestressing force RPC acoustic barrier unit board Download PDFInfo
- Publication number
- CN107794851A CN107794851A CN201711197828.0A CN201711197828A CN107794851A CN 107794851 A CN107794851 A CN 107794851A CN 201711197828 A CN201711197828 A CN 201711197828A CN 107794851 A CN107794851 A CN 107794851A
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- China
- Prior art keywords
- rpc
- high tensile
- steel wire
- barrier unit
- prestressing force
- Prior art date
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- Pending
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- 230000004888 barrier function Effects 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000011490 mineral wool Substances 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 210000004027 cell Anatomy 0.000 description 9
- 238000005336 cracking Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000002929 anti-fatigue Effects 0.000 description 2
- 210000002457 barrier cell Anatomy 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0017—Plate-like elements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0029—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with porous surfaces, e.g. concrete with porous fillers
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a kind of preparation method of prestressing force RPC acoustic barrier unit board.Cell board is mainly made up of the RPC plate, high tensile steel wire and sound-absorbing rock wool of mixing of steel fiber.Pass through the high tensile steel wire in tensioning acoustic barrier unit board, two rows hole is reserved in steel form both ends end plate, the screwed high tensile steel wire in both ends is passed through to the hole of steel form end plate, the mode tensioning high tensile steel wire of nut is tightened using measuring spanner for force moment, prestressing force is applied to RPC.The present invention improves the rigidity of acoustic barrier unit board, improves crack resistance, the generation and development of control critical eigenvalue, reaches more preferable sound-adsorbing sound-insulating hung effect, and improve the durability of cell board.
Description
Technical field
The present invention relates to a kind of preparation method of prestressing force acoustic barrier unit board, more particularly to applied to high-speed railway edge
The preparation method of the RPC acoustic barrier unit board of line.
Background technology
Existing RPC acoustic barrier unit board, under various load actions, especially in transportation
In the presence of train pneumatic blast, cell board is easy to produce crack, does not reach the sound absorption and insulation effect of requirement；Run at high speed
High ferro train caused by pneumatic blast be cyclic load, existing acoustic barrier unit board anti-fatigue ability deficiency, it is easy to make list
First plate destroys in advance, or even jeopardizes the traffic safety of train.
Therefore, in order to reach good sound-adsorbing sound-insulating hung effect and the durability of raising cell board, concrete acoustical barrier is improved
The anti-crack ability of cell board and the rigidity of increasing unit plate are particularly important.
The content of the invention
It is an object of the invention to overcome the shortcomings of existing RPC acoustic barrier unit board cracking resistance, there is provided
A kind of preparation method of prestressing force RPC acoustic barrier unit board, cell board is applied by tensioning high tensile steel wire pre-
Stress, to resist bullet train by caused blast, the rigidity of cell board is improved, improves cracking resistance and anti-fatigue performance.
The present invention's concretely comprises the following steps：
First, two rows hole, aperture 6-8mm will be reserved on the end plate at steel form both ends, upper and lower hole is equally spaced,
Upper round hole spacing is 65mm, and lower round hole spacing is 45mm.
The 2nd, the screwed high tensile steel wire in both ends is passed through to the hole on the end plate at steel form both ends, high tensile steel wire diameter
For 4-6mm, the mode tensioning high tensile steel wire of nut is tightened using measuring spanner for force moment, using pre-tensioning system, tensioned at one end or both ends are opened
Draw；Apply prestressed size to be controlled by measuring spanner for force moment；
3rd, after the completion of tensioning, pour the panel that high tensile steel wire spacing is 45mm with RPC and produce prestressing force activity
The panel of powder concrete acoustic barrier unit board, the height of RPC flushes with " double wedge " of steel form in panel,
For forming sound-absorption hole.
3rd, panel pours vibrate after the completion of, adjacent panel lays black grid cloth and sound-absorbing rock wool, then with reactive powder coagulation
Soil pours high tensile steel wire spacing and is 65mm backboard, and vibrates and floating produce prestressing force RPC acoustic barrier unit board
Backboard；Steel form is shed after the completion of maintenance and nut put and opened, unnecessary high tensile steel wire is cut off and produces prestressing force reactive powder
Concrete acoustical barrier cell board, steel form and nut can be reused.
The steel fibre that percent by volume is 2% is mixed with the RPC.
Simply easily realized it is an advantage of the current invention that applying prestressed mode, the rigidity of cell board is improved, cracking resistance
Performance is improved, and controls the generation and development in crack；High tensile steel wire position in cell board is fixed, and is avoided in work progress
Middle reinforcing bar is moved, and reinforcing bar is exposed outside or reinforcing bar does not have enough protective layer thickness and reduces its durability.In addition,
A nut after putting can be reused.
Brief description of the drawings
Fig. 1 is the cross-sectional structure schematic diagram of prestressing force RPC acoustic barrier unit board of the embodiment of the present invention.
Fig. 2 is prestressing force RPC acoustic barrier unit board panel schematic diagram of the embodiment of the present invention.
Fig. 3 is prestressing force RPC acoustic barrier unit board backboard schematic diagram of the embodiment of the present invention.
Fig. 4 is that the nut combination at prestressing force RPC acoustic barrier unit board tensioning of the embodiment of the present invention is shown
It is intended to.
In figure：1- backboards；2- panels；The black grid cloth of 3- and sound-absorbing rock wool；4- high tensile steel wires；5- sound-absorption holes;6- nuts；7- ends
Plate.
Embodiment
The present invention is described in detail below, and described embodiment is only part of the embodiment of the present invention, without
It is whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not before creative work is made
The every other embodiment obtained is put, belongs to the scope of protection of the invention.
Embodiment:
As Figure 1-4.
First, two rows hole, aperture 6mm, the equidistant cloth of upper and lower hole will be reserved on the end plate 7 at steel form both ends
Put, upper round hole spacing is 65mm, and lower round hole spacing is 45mm.
2nd, it is the screwed high tensile steel wire 4 in both ends is straight through the hole on the end plate 7 at steel form both ends, high tensile steel wire 4
Footpath is 4mm, the mode tensioning high tensile steel wire of nut 6 is tightened using measuring spanner for force moment, using pre-tensioning system, tensioned at one end；Applied
Prestressed size is controlled by measuring spanner for force moment；
3rd, after the completion of tensioning, pour the panel that high tensile steel wire spacing is 45mm with RPC and produce prestressing force activity
The panel 2 of powder concrete acoustic barrier unit board, " double wedge " of the height of RPC and steel form is neat in panel 2
It is flat, for forming sound-absorption hole 5.
3rd, panel 2 pours vibrate after the completion of, adjacent panel 2 lays black grid cloth and sound-absorbing rock wool 3, then uses reactive powder
Concreting high tensile steel wire spacing is 65mm backboard, and vibrates and floating produce prestressing force RPC sound barrier list
The backboard 1 of first plate；Steel form is shed after the completion of maintenance and nut 6 put and opened, unnecessary high tensile steel wire 4 is cut off and produces prestressing force work
Property powder concrete acoustic barrier unit board, steel form and nut 6 can be reused.
The steel fibre that percent by volume is 2% is mixed with the RPC.
High-speed railway RPC acoustic barrier unit board of the present invention, due to being applied with pre- answer to cell board
Power, the integral rigidity and cracking resistance of acoustic barrier unit board can be effectively increased, improves its durability.In addition, in advance should by applying
Power, can appropriate reduction unit backboard under conditions of when ensureing cell board intensity and applying prestressing force, unstability does not occur for component
The thickness of plate 1 and panel 2, reach mitigation deadweight, save the purpose of material.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (1)
1. a kind of manufacture method of prestressing force RPC acoustic barrier unit board, it is characterised in that concretely comprise the following steps：
First, by the end plate at steel form both ends（7）Upper reserved two rows hole, aperture 6-8mm, the equidistant cloth of upper and lower hole
Put, upper end hole spacing is 65mm, and lower end hole spacing is 45mm；
2nd, by the screwed high tensile steel wire in both ends（4）Through the end plate at steel form both ends（7）On hole, high tensile steel wire（4）
A diameter of 4-6mm, nut is tightened using measuring spanner for force moment（6）Mode tensioning high tensile steel wire, using pre-tensioning system, tensioned at one end or
Both ends tensioning；Apply prestressed size to be controlled by measuring spanner for force moment；
3rd, after the completion of tensioning, pour the panel that high tensile steel wire spacing is 45mm with RPC and produce prestressing force activity
The panel of powder concrete acoustic barrier unit board（2）, panel（2）The height of middle RPC and " double wedge " of steel form
Flush, for forming sound-absorption hole（5）；
4th, panel（2）Pour after the completion of vibrating, adjacent panel（2）Lay black grid cloth and sound-absorbing rock wool（3）, then use activity powder
Last concreting high tensile steel wire spacing is 65mm backboard, and vibrates and floating produce prestressing force RPC sound barrier
The backboard of cell board（1）；Steel form and nut are shed after the completion of maintenance（6）Put and open, produce prestressing force reactive powder coagulation
Native acoustic barrier unit board；
The steel fibre that percent by volume is 2% is mixed with the RPC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711197828.0A CN107794851A (en) | 2017-11-25 | 2017-11-25 | The preparation method of prestressing force RPC acoustic barrier unit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711197828.0A CN107794851A (en) | 2017-11-25 | 2017-11-25 | The preparation method of prestressing force RPC acoustic barrier unit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107794851A true CN107794851A (en) | 2018-03-13 |
Family
ID=61535763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711197828.0A Pending CN107794851A (en) | 2017-11-25 | 2017-11-25 | The preparation method of prestressing force RPC acoustic barrier unit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107794851A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660953A (en) * | 2018-05-06 | 2018-10-16 | 桂林理工大学 | Prefabricated PC Reactive Powder Concrete acoustic barrier unit board device |
| CN108774961A (en) * | 2018-05-06 | 2018-11-09 | 桂林理工大学 | The production method of prefabricated PC Reactive Powder Concrete acoustic barrier unit board |
| CN113502762A (en) * | 2021-07-26 | 2021-10-15 | 中建西部建设建材科学研究院有限公司 | Integral groove-based directly-buried self-standing non-metallic sound barrier and installation method thereof |
-
2017
- 2017-11-25 CN CN201711197828.0A patent/CN107794851A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660953A (en) * | 2018-05-06 | 2018-10-16 | 桂林理工大学 | Prefabricated PC Reactive Powder Concrete acoustic barrier unit board device |
| CN108774961A (en) * | 2018-05-06 | 2018-11-09 | 桂林理工大学 | The production method of prefabricated PC Reactive Powder Concrete acoustic barrier unit board |
| CN113502762A (en) * | 2021-07-26 | 2021-10-15 | 中建西部建设建材科学研究院有限公司 | Integral groove-based directly-buried self-standing non-metallic sound barrier and installation method thereof |
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Application publication date: 20180313 |