CN108774961A - The production method of prefabricated PC Reactive Powder Concrete acoustic barrier unit board - Google Patents
The production method of prefabricated PC Reactive Powder Concrete acoustic barrier unit board Download PDFInfo
- Publication number
- CN108774961A CN108774961A CN201810423730.0A CN201810423730A CN108774961A CN 108774961 A CN108774961 A CN 108774961A CN 201810423730 A CN201810423730 A CN 201810423730A CN 108774961 A CN108774961 A CN 108774961A
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- China
- Prior art keywords
- steel
- backboard
- panel
- punching block
- barrier unit
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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
-
- 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
- E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
- E01F8/0064—Perforated plate or mesh, e.g. as wall facing
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention discloses a kind of production methods of prefabricated PC Reactive Powder Concrete acoustic barrier unit board.Interval setting column along the railway, column is H profile steel, and be fixed on column on armored concrete bottom girder by design requirement interval, acoustic barrier unit board is installed between every adjacent two root posts, acoustic barrier unit board includes panel, backboard, sound-absorbing rock wool, channel steel and I-steel.The panel and backboard of acoustic barrier unit board are poured by mixing of steel fiber Reactive Powder Concrete, while carrying out tensioning to the high tensile reinforcement in panel and backboard using pre-tensioning system.Prefabricated panel and backboard are carried out with sound-absorbing rock wool, I-steel and channel steel etc. assembled and are fixed with column by the method for the present invention at the construction field (site), have many advantages, such as dead weight compared with light, construction is simple, transport facility, crack resistance is good, service life is long.Assembled good cell board forms three layers of hollow noise barrier structure, and noise reduction is more ideal.
Description
Technical field
The invention belongs to railway sound barrier cell board design field, more particularly to a kind of prefabricated PC activity powder
The production method of last concrete acoustical barrier cell board.
Background technology
Between sound barrier is located at noise source and receives noise source region, noise can be effectively absorbed, to make recipient
The level of noise of region is reduced to code requirement or less.
Be easy for installation the advantages of sound barrier is divided into metal sound barrier and non-metal sound barrier, metal sound barrier, can scale
Change construction etc., but there are costs it is high, curing requirements are high the shortcomings of, and non-metal sound barrier is mainly based on concrete acoustical barrier,
Has many advantages, such as low cost, corrosion-resistant, pollution-free.Non-metal sound barrier is divided into as two kinds of monoblock type and assembled, assembled sound
Barrier has many advantages, such as that relatively light dead weight, convenient transportation, assembly and disassembly are simple, are easily changed.
The main purpose of railway sound barrier is noise reduction, but under train circulating air dynamic loading, normal concrete sound-screen
Barrier cell board is susceptible to a large amount of cracks, or even jeopardizes the traffic safety of train, especially the acoustic barrier unit board along high ferro,
To reduce the service life of concrete acoustical barrier.Reactive Powder Concrete has high tenacity, surpasses compared with normal concrete
The features such as high intensity, good volume stability, high-temperature adaptability, high-durability, while being aided with ripe prestressing technique, energy
Crack resistance, durability and the service life of enough effectively enhancing acoustic barrier unit boards.Therefore, using prestressing force Reactive Powder Concrete
Improve normal concrete acoustic barrier unit board there are the problem of it is particularly important.
Invention content
The purpose of the present invention is overcoming, normal concrete acoustic barrier unit board cracking resistance is insufficient, fatigue resistance is poor, transport
The problems such as relatively difficult, provides a kind of production method of prefabricated PC Reactive Powder Concrete acoustic barrier unit board.
The specific steps are：
（1）Interval setting column along the railway, column is H profile steel, and column is fixed on reinforcing bar by design requirement interval and is mixed
On solidifying soil bottom girder, acoustic barrier unit board is installed between every adjacent two root posts, acoustic barrier unit board includes panel, backboard, sound-absorbing
Rock wool, channel steel and I-steel.
（2）The panel of acoustic barrier unit board carries out prefabricated in precasting yard：First, it is opened on the steel plate of punching block both ends in ratio panels
The slightly larger hole of high tensile reinforcement diameter, pore quantity is identical as high tensile reinforcement number in panel, and screw thread is opened at high tensile reinforcement both ends, is used for
It is engaged with nut；Secondly the rubber of tiling with double wedge on punching block bottom plate, carries out template assemblies, and will be on the inside of punching block and double wedge
Upper smearing release agent；Then high tensile reinforcement is put into punching block, high tensile reinforcement passes through the hole on the steel plate of punching block both ends, part
Screw thread is exposed at outside punching block, is tightened to nut by measuring spanner for force moment and is calculated control stress for prestressing value, to realize high-strength steel
The tensioning of muscle, tensioning use tensioned at one end or both ends tensioning；Finally the steel fiber activated powder concrete stirred evenly is poured
It in punching block and vibration compacting, is conserved after smooth out surface, carries out putting after the completion of maintenance, cut off extra exposed high-strength steel
Muscle, punching block can reuse.
（3）The backboard of acoustic barrier unit board carries out prefabricated in precasting yard：First, it is opened than in backboard on the steel plate of punching block both ends
The slightly larger hole of high tensile reinforcement diameter, pore quantity is identical as high tensile reinforcement number in backboard, and screw thread is opened at high tensile reinforcement both ends, is used for
It is engaged with nut；Secondly, punching block assembling is carried out, by smearing release agent on the inside of punching block；Then, high tensile reinforcement is put into punching block
Interior, high tensile reinforcement is exposed at by the hole on the steel plate of punching block both ends, partial threads outside punching block, by measuring spanner for force moment by nut
It is tightened to and calculates control stress for prestressing value, to realize that the tensioning of high tensile reinforcement, tensioning use tensioned at one end or both ends tensioning；Most
The steel fiber activated powder concrete stirred evenly is cast in punching block simultaneously vibration compacting, smooth out surface, after the completion of maintenance afterwards
Put and open, cuts off extra exposed high tensile reinforcement, punching block can reuse.
（4）The processing of channel steel and I-steel：By the both ends of channel steel and I-steel and intermediate position respectively one piece of welding perpendicular to
For the small steel plate on the edge of a wing as limiting plate, limiting plate both sides reserve the thickness of panel and backboard, form 6 notches, so as to panel and
Backboard passes through, and generates position-limiting action.
（5）The assembling of prefabricated PC Reactive Powder Concrete acoustic barrier unit board：By prefabricated panel, backboard,
Sound-absorbing rock wool, channel steel and I-steel transport to construction site and carry out assembly；The channel steel that will be close to armored concrete bottom girder first is logical
It crosses bolt to be fixed between adjacent two root posts, central post is made by the H profile steel of specification bigger, channel steel and I-steel and column
Orthogonal, the edge of a wing of channel steel or I-steel is connected by screw bolts solid with column edge of a wing binding face at vertical and intersection node
It is fixed；Then by the notch on the outside of back plate insertion slot steel, then panel is inserted into the notch on the inside of channel steel；Finally, by sound-absorbing
Rock wool is filled into the hollow structure between backboard and panel.With the notch of I-steel side to already fixed panel and the back of the body
Plate is fixed again, and I-steel and column are attached fixation with bolt, carries out above-mentioned steps successively and repeats assembly, directly
Panel and backboard are finally fixed with the notch of channel steel to when top, and fixation is bolted with column, simultaneously
Also achieve the purpose that bind, that is, realize the making of prefabricated PC Reactive Powder Concrete acoustic barrier unit board.
Advantages of the present invention：
Fabricated construction can make construction is simple.Panel and backboard independent construction, make single member dead weight is small, be readily transported,
Handling are simple.Panel and backboard are poured by the Reactive Powder Concrete mixed with steel fibre, have fold resistance good and intensity height
The features such as, the cracking resistance of cell board is improved, improves durability and service life, while high tensile reinforcement can be made full use of
Tensile property, and recycle mold etc..Apply prestressing force, can effectively control the development of distress in concrete, while also into one
Step improves the crack resistance of panel and backboard.The high fold resistance of Reactive Powder Concrete itself and prestressed application so that single
For first plate under the premise of proof strength and non-unstability, maximumlly reduction unit plate section thickness, mitigates member dead weight.
Description of the drawings
Fig. 1 faces for the panel of prefabricated PC Reactive Powder Concrete acoustic barrier unit board in the embodiment of the present invention to be shown
It is intended to.
Fig. 2 faces for the backboard of prefabricated PC Reactive Powder Concrete acoustic barrier unit board in the embodiment of the present invention to be shown
It is intended to.
Fig. 3 is the side view signal of prefabricated PC Reactive Powder Concrete acoustic barrier unit board in the embodiment of the present invention
Figure.
Fig. 4 is facing after prefabricated PC Reactive Powder Concrete acoustic barrier unit board assembly in the embodiment of the present invention
Schematic diagram.
Fig. 5 is the side view after prefabricated PC Reactive Powder Concrete acoustic barrier unit board assembly in the embodiment of the present invention
Schematic diagram.
Fig. 6 is the prestressed stretch-draw of prefabricated PC Reactive Powder Concrete acoustic barrier unit board in the embodiment of the present invention
Nut combination diagram.
Fig. 7 is the channel steel limiting plate of prefabricated PC Reactive Powder Concrete acoustic barrier unit board in the embodiment of the present invention
Weld vertical view.
Fig. 8 be in the embodiment of the present invention I-steel of prefabricated PC Reactive Powder Concrete acoustic barrier unit board with it is vertical
Column is connected and fixed front schematic view.
Fig. 9 is the channel steel and column of prefabricated PC Reactive Powder Concrete acoustic barrier unit board in the embodiment of the present invention
It is connected and fixed front schematic view.
Figure 10 is the channel steel or work of prefabricated PC Reactive Powder Concrete acoustic barrier unit board in the embodiment of the present invention
Word steel is connected and fixed schematic top plan view with column.
It is marked in figure：1- panels；2- backboards；3- columns；4- channel steels；5- I-steel；6- armored concrete bottom girders；7- sound-absorbings
Rock wool；8- limiting plates；9- bolts；10- high tensile reinforcements；11- steel plates；12- nuts.
Specific implementation mode
Embodiment：
The concrete operations of the present invention are described below by specific example, the operation of this example be only used for it is of the invention into
One step illustrates, but is not limiting the scope of the invention, and those skilled in the art are made with the content of non-intrinsically safe change
Also belong to protection scope of the present invention.
In conjunction with Fig. 1 to Figure 10.
As shown, sound barrier includes the column of Along Railway setting, column is fixed on armored concrete bottom girder.
Acoustic barrier unit board panel and backboard are poured by the Reactive Powder Concrete mixed with a certain amount of steel fibre in punching block
It forms, Reactive Powder Concrete uniformly smears one layer of releasing agent before pouring first in punching block, then that both ends are screwed
High tensile steel wire is each passed through panel and the rigid mould both ends of backboard reserved 11 and 8 holes, both ends partial threads are exposed at respectively
On the outside of punching block, then nut is tightened to by measuring spanner for force moment and calculates control stress for prestressing value, to realize high tensile steel wire
Tensioning.Tensioning can be used tensioned at one end and both ends tensioning can also be used.Concreting is carried out after high tensile steel wire tensioning is complete and is vibrated
It is closely knit, finally surface is smoothed out, after the completion of maintenance, put and opens, cut off extra steel wire, mold is repeatable to be utilized, I-steel
With channel steel according to required specifications and models outsourcing.
After the completion of panel 1 conserves, the side of panel 1 is pasted to the black felt-cloth of homalographic, to prevent rainwater or foreign matter along hole
Hole enters in cell board.The both ends of the top channel steel 4 and following I-steel 5 and intermediate position are respectively welded one piece perpendicular to the edge of a wing
Small steel plate as limiting plate 8,8 both sides of limiting plate reserve the thickness of panel 1 and backboard 2,6 notches are formed, so as to 1 He of panel
Backboard 2 passes through, and generates position-limiting action.
By prefabricated acoustic barrier unit board panel 1（Black felt-cloth is pasted）With backboard 2 and sound-absorbing rock wool 7, channel steel 4,
I-steel 5 transports to construction site and carries out assembly.The channel steel 4 that will be close to armored concrete bottom girder first is fixed on by bolt 9
Between column 3, central post 3 is made by the H profile steel of specification bigger, and channel steel 4 and I-steel 5 and column 3 are orthogonal, vertical
And the edge of a wing of channel steel 4 or I-steel 5 is connected and fixed with 3 edge of a wing binding face of column using bolt 9 at the node of intersection；It then will the back of the body
Plate 2 is inserted into the notch in 4 outside of channel steel, then panel 1 is inserted into the notch of 4 inside of channel steel；Finally, sound-absorbing rock wool 7 is filled out
It is charged in the hollow structure between backboard 2 and panel 1.With the notch of 5 side of I-steel to already fixed panel 1 and backboard
2 are fixed again, and I-steel 5 and the bolt 9 of column 3 are attached fixation, carry out above-mentioned steps successively and repeat assembly,
Last assembly is carried out to panel 1 and backboard 2 with the notch of channel steel 4 when top, and is connect admittedly by bolt 9 with column 3
It is fixed, while also achieving the purpose that bind, that is, realize the making of prefabricated PC Reactive Powder Concrete acoustic barrier unit board.
Panel and backboard described in the present embodiment are poured by Reactive Powder Concrete, have higher anti-folding strong
Degree, therefore under the premise of proof strength, compared with normal concrete acoustic barrier unit board, section thickness can be reduced, mitigate
Dead weight.Due to being applied with prestressing force to panel and bottom plate, so the rigidity of cell board, intensity, cracking resistance and durability are into one
Step is improved, and under the premise of not unstability, section thickness can reduce again, makes cell board from lightest.Pacified using pin-connected panel
Dress, can simplify construction, carry out convenience for large-scale production and conveyer belt to the maximum extent.
Claims (1)
1. a kind of production method of prefabricated PC Reactive Powder Concrete acoustic barrier unit board, it is characterised in that specific steps
For：
（1）Interval setting column along the railway, column is H profile steel, and column is fixed on reinforcing bar by design requirement interval and is mixed
On solidifying soil bottom girder, acoustic barrier unit board is installed between every adjacent two root posts, acoustic barrier unit board includes panel, backboard, sound-absorbing
Rock wool, channel steel and I-steel；
（2）The panel of acoustic barrier unit board carries out prefabricated in precasting yard：First, it is opened on the steel plate of punching block both ends high-strength in ratio panels
The slightly larger hole of bar diameter, pore quantity is identical as high tensile reinforcement number in panel, and screw thread is opened at high tensile reinforcement both ends, is used for and spiral shell
Cap is engaged；Secondly rubber of the tiling with double wedge on punching block bottom plate carries out template assemblies, and will be applied on the inside of punching block and on double wedge
Smear releasing agent；Then high tensile reinforcement is put into punching block, high tensile reinforcement passes through the hole on the steel plate of punching block both ends, partial threads
It is exposed at outside punching block, nut is tightened to by measuring spanner for force moment and calculates control stress for prestressing value, to realize high tensile reinforcement
Tensioning, tensioning use tensioned at one end or both ends tensioning；The steel fiber activated powder concrete stirred evenly is finally cast in steel
It in mould and vibration compacting, is conserved after smooth out surface, carries out putting after the completion of maintenance, cut off extra exposed high tensile reinforcement,
Punching block can reuse；
（3）The backboard of acoustic barrier unit board carries out prefabricated in precasting yard：First, high-strength in being opened than backboard on the steel plate of punching block both ends
The slightly larger hole of bar diameter, pore quantity is identical as high tensile reinforcement number in backboard, and screw thread is opened at high tensile reinforcement both ends, is used for and spiral shell
Cap is engaged；Secondly, punching block assembling is carried out, by smearing release agent on the inside of punching block；Then, high tensile reinforcement is put into punching block, it is high
By the hole on the steel plate of punching block both ends, partial threads are exposed at outside punching block strong reinforcing bar, are tightened nut by measuring spanner for force moment
To control stress for prestressing value is calculated, to realize that the tensioning of high tensile reinforcement, tensioning use tensioned at one end or both ends tensioning；Finally will
The steel fiber activated powder concrete stirred evenly is cast in punching block and vibration compacting, smooth out surface, is carried out after the completion of maintenance
It puts and opens, cut off extra exposed high tensile reinforcement, punching block can reuse；
（4）The processing of channel steel and I-steel：The both ends of channel steel and I-steel and intermediate position are respectively welded one piece perpendicular to the edge of a wing
Small steel plate as limiting plate, limiting plate both sides reserve the thickness of panel and backboard, 6 notches are formed, so as to panel and backboard
Pass through, and generates position-limiting action；
（5）The assembling of prefabricated PC Reactive Powder Concrete acoustic barrier unit board：By prefabricated panel, backboard, sound-absorbing
Rock wool, channel steel and I-steel transport to construction site and carry out assembly；The channel steel that will be close to armored concrete bottom girder first passes through spiral shell
Bolt is fixed between adjacent two root posts, and central post is made by the H profile steel of specification bigger, and channel steel and I-steel and column are mutual
Vertically, the edge of a wing of channel steel or I-steel is fixed with bolts with column edge of a wing binding face at vertical and intersection node；
Then by the notch on the outside of back plate insertion slot steel, then panel is inserted into the notch on the inside of channel steel；Finally, by sound-absorbing rock wool
It is filled into the hollow structure between backboard and panel；With the notch of I-steel side to already fixed panel and backboard again
It is secondary to be fixed, and I-steel and column are attached fixation with bolt, above-mentioned steps are carried out successively and repeat assembly, until most
Panel and backboard are finally fixed with the notch of channel steel when top layer, and fixation is bolted with column, while also being reached
To the purpose to bind, that is, realize the making of prefabricated PC Reactive Powder Concrete acoustic barrier unit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810423730.0A CN108774961A (en) | 2018-05-06 | 2018-05-06 | The production method of prefabricated PC Reactive Powder Concrete acoustic barrier unit board |
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| CN201810423730.0A CN108774961A (en) | 2018-05-06 | 2018-05-06 | The production method of prefabricated PC Reactive Powder Concrete acoustic barrier unit board |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813865A (en) * | 2020-12-30 | 2021-05-18 | 中铁六局集团北京铁路建设有限公司 | Construction method of large-span thin-wall concrete sound barrier |
| CN116043740A (en) * | 2023-03-23 | 2023-05-02 | 山西军昊实业有限公司 | Totally-enclosed sound barrier and installation method thereof |
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|---|---|---|---|---|
| CN112813865A (en) * | 2020-12-30 | 2021-05-18 | 中铁六局集团北京铁路建设有限公司 | Construction method of large-span thin-wall concrete sound barrier |
| CN116043740A (en) * | 2023-03-23 | 2023-05-02 | 山西军昊实业有限公司 | Totally-enclosed sound barrier and installation method thereof |
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