CN110965489A - Subway insertion type totally-enclosed sound barrier and construction method - Google Patents
Subway insertion type totally-enclosed sound barrier and construction method Download PDFInfo
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- CN110965489A CN110965489A CN202010043839.9A CN202010043839A CN110965489A CN 110965489 A CN110965489 A CN 110965489A CN 202010043839 A CN202010043839 A CN 202010043839A CN 110965489 A CN110965489 A CN 110965489A
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- 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
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- 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
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- 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
- E01F8/0023—Details, e.g. foundations
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to the technical field of building construction, and discloses a subway insertion type totally-closed sound barrier and a construction method, which comprise the following operation processes: foundation embedded measurement and detection → crane column installation → column adjustment → metal acoustic panel installation → transparent sandwich glass installation → steel beam installation → top acoustic panel installation → acoustic louver installation → acoustic panel installation at the arc → inspection and acceptance; through the preparation processing that uses stand, girder steel, metal acoustic baffle, transparent laminated glass material, and transport to the scene and install meticulously, can reach totally closed syllable-dividing effect after the shaping, effectively improved noise pollution to utilize the stand to be the support, install fixedly through the built-in fitting on civil engineering structure, through between sensitive building and subway line, set up the sound absorption and insulation barrier device, reduce the influence of subway noise to sensitive building.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a subway insertion type totally-enclosed sound barrier.
Background
In the process of continuous city construction, under the increasingly beautiful transformation of people's life, the environmental protection, the economy and the beauty become the important direction of the city construction, the existing totally-enclosed sound barrier is a novel sound insulation construction method for the city light rail construction, the fine installation is carried out by selecting materials, transporting, manufacturing and processing and transporting to the site, the totally-enclosed sound insulation effect can be achieved after the formation, and the noise pollution is effectively improved
At present, a totally-enclosed sound barrier is adopted in the construction process and mainly comprises purlins, a portal steel frame, a sound insulation and absorption barrier plate, a transparent sound barrier plate and the like, a lane is surrounded to form a totally-enclosed structure, and therefore the purpose of noise treatment is achieved; the portal steel frame is mostly made of H-shaped steel, and the top steel beam is generally in an arc shape and is welded with the upright steel frames at two sides into a whole.
In the totally-enclosed sound barrier installation construction process, a main steel structure is generally completely installed, then the sound barrier plate is installed, and the sound barrier plate is required to be slightly shorter to be manufactured by an inclined or even bent method because the H-shaped steel upright column is not provided with the notch and cannot be normally inserted into the flange of the H-shaped steel upright column. Can cause wearing and tearing and collide with sound screen baffle like this in the installation to under the effect of long-term natural wind pressure and vehicle pulsation wind pressure, shorter sound screen baffle has the hidden danger that drops out, and traditional construction mode does not carry out the timing to the stand simultaneously, and the construction controllability is poor, and the construction difficulty, the installation degree of difficulty is great, and such construction mode is wasted time and energy.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides a subway insertion type totally-closed sound barrier and a construction method thereof.
The invention provides the following technical scheme: a construction method of a subway insertion type totally-enclosed sound barrier comprises the following operation processes: foundation embedded measurement and detection → crane column installation → column adjustment → metal acoustic panel installation → transparent sandwich glass installation → steel beam installation → top acoustic panel installation → acoustic louver installation → acoustic panel installation at the arc → inspection and acceptance.
Firstly, the actual distance and flatness of the sound barrier upright post embedded parts on the viaduct, the U-shaped groove and the roadbed are subjected to on-site survey and measurement, and the processing and manufacturing specifications and the installation flatness are adjusted so as to process the distance, the elevation and the parallel error of the lines of the embedded parts.
Hoisting and adjusting the upright column, adjusting two datum lines of the bottom of the upright column and the foundation to accurate positions, screwing all high-strength bolts and nuts to temporarily fix the steel column, and removing a lifting hook after fixing; the metal acoustic panel and the transparent laminated glass are installed manually.
Hoisting a steel beam by a 25T crane, protecting the paint surface of the steel beam at a hoisting point, tensioning two ends of the steel beam by hemp ropes, continuously hoisting after checking that the steel beam is free of errors when hoisting 50cm away from the ground, performing primary correction on the steel beam before loosening a lifting hook when mounting a first steel beam, aligning the center of a steel beam base and a positioning axis, adjusting the steel beam to be vertical, checking the lateral bending of the beam, fixing two sides of the steel beam by using a cable rope, mounting a second steel beam, temporarily fixing a longitudinal supporting purlin and the first steel beam, screwing high-strength bolts, and correcting and fixing the whole; and finally, the top sound absorption and insulation plate, the silencing shutter and the sound absorption plate at the arc position are installed and fixed manually.
The installation process flow of the metal sound-absorbing board, the sound-absorbing board at the arc position and the top sound-absorbing board is as follows: back panel upper frame → upper and lower side panels are put in → rivet fixation → sound absorbing cotton is put in → front panel is installed → rivet fixation → left and right side panels are installed and fixed → inspection and acceptance.
The process flow for installing the transparent sandwich glass comprises the following steps: glass cutting and cleaning processing → laminating → prepressing and exhausting → solidifying.
Preferably, the high-strength bolt is installed after the member is adjusted to the central position and then fastened, and the penetrating directions of the high-strength bolt are consistent; when the high-strength bolt is installed, the friction surface of the component is ensured to be dry; when the bolts are used for temporary connection, the number of each position is determined by calculation, but each node is not less than two; when the composite material is used for permanent connection, punching is allowed by using an overshoot, but the punching number is not more than 30% of the number of bolts; and (3) fastening the high-strength bolt: firstly, the initial screwing is fastened to 50% of the standard pretensioning force of the bolt, and secondly, the final screwing is fastened to the standard pretensioning force of the bolt, and the deviation is not greater than 10%; the high-strength bolt connection is adopted, and the friction coefficient value of the friction surface of the component needs to meet the design requirement when the friction surface of the component needs to be processed in a construction site.
Preferably, the leveling nuts and the washers are installed on the embedded bolts according to the design height when the upright columns are adjusted, and the leveling is carried out by using a level ruler; leveling: and ensuring that the centers of the sound barriers are on the same straight line from the first embedded bolt to the last embedded bolt brace engineering line so as to control the height difference of two adjacent steel columns, and simultaneously installing an elastic washer on each nut after the adjustment is finished.
A bayonet totally closed sound barrier of subway, including stand, girder steel, metal acoustic baffle, transparent laminated glass, its characterized in that: the stand passes through high strength bolt installation to be fixed on the road bed, installs cable tray at the stand medial surface, and supreme metal acoustic panel, transparent laminated glass, the acoustic celotex board of installing in proper order are down followed to the stand, and the installation is fixed with the girder steel in stand upper end, installs vertical support purlin in the girder steel side-mounting, installs top acoustic panel on vertical support purlin, installs the noise elimination tripe directly over the girder steel.
Preferably, the steel beam is formed by butt welding a plurality of H-shaped steel through Z-shaped welding seams.
Preferably, a stiffening rib plate is welded at the joint of the upright post and the high-strength bolt.
The invention has the following beneficial effects:
1. the metal sound-absorbing board, the arc sound-absorbing board and the top sound-absorbing board are assembled by the rivets, so that the installation is convenient and rapid, firmness and reliability are realized, and the operation and installation are convenient and rapid and the installation reliability is high when the arc sound-absorbing board and the top sound-absorbing board are installed.
2. The transparent laminated glass is an aluminum detachable frame, and during the use period of the sound barrier, if the laminated glass is damaged, the buckle is opened, the aluminum frame is taken down, the damaged glass is taken out and replaced, and the later maintenance time and the maintenance cost are effectively saved;
3. the construction method has the advantages that the production and construction organization is flexible, the characteristic that the material manufacturing production line is long is fully utilized, various material production and installation procedures are mutually alternated, the construction time can be effectively distributed, and meanwhile, the construction time in the whole process is effectively reduced due to the adoption of the construction method of shaped installation;
4. the construction method has the advantages that the positions and the number of the hoisting points are variable, the precision is high, the longitudinal and transverse axes are sprung on the bottom plate of the column by using ink fountain lines and are aligned with the axis of the foundation, and the axis position and the inter-column size of the column are ensured;
5. when the steel column is installed, the level of the foundation nut is controlled by using a level gauge, so that the level position of each point is ensured, and the hoisting precision is greatly increased;
6. in the construction, upright columns on two sides are installed firstly, then the metal sound absorbing plate and the transparent sandwich glass are installed from top to bottom and are inserted and fixed onto the columns one by one without making the sound barrier plate slightly shorter, and then the sound absorbing plate and the transparent sandwich glass are installed by an inclined or even bent method, so that the installation reliability is greatly improved, and the installation potential safety hazard is reduced.
7. Through adjusting the stand column, the mounting precision is greatly improved, and the mounting is more convenient and faster.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the operation of the present invention.
In the figure: 1. a roadbed; 2. a gasket; 3. a high-strength bolt; 4. a metal sound absorbing panel; 5. transparent laminated glass; 6. a cable tray; 7. a column; 8. the sound absorption plate at the arc part 9, the sound absorption plate at the top 10, the longitudinal supporting purlines 11, the steel beams 12 and the silencing shutters.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a construction method of a subway insertion type totally-enclosed sound barrier includes the following operation processes: foundation embedded measurement and detection → crane column installation → column adjustment → metal acoustic panel installation → transparent sandwich glass installation → steel beam installation → top acoustic panel installation → acoustic louver installation → acoustic panel installation at the arc → inspection and acceptance.
Errors exist in the actual distance and flatness of embedded parts of the sound barrier upright posts 7 on the viaduct, the U-shaped groove and the roadbed 1 and the drawing requirements; therefore, the sound barrier manufacturing and installing unit is required to perform on-site survey measurement before manufacturing and installing the sound barrier, and adjust the processing and manufacturing specifications and the installation flatness so as to process the distance, the elevation and the parallel error of the line of the embedded part.
The upright post 7 is hoisted, a horizontal line is drawn from the position of the bottom plate of the upright post 7 upwards by 1000mm before the upright post 7 is hoisted, the plane elevation is mainly rechecked before and after installation and fixation, and a binding point is determined according to the type and the height of the upright post 7, namely the binding point is used as a steel rope binding point at a position 1.5m away from the top of the upright post 7. The method is characterized in that a part 1m from the upper part of the column bottom is bound with a hemp rope and used for restraining and adjusting the direction, after the preparation work before hoisting is ready, firstly trial hoisting is carried out, the hoisting is stopped when the height of one hoisting end is 100-200mm, the rigging is checked to be firm, the crane can be commanded to slowly descend when the crane stabilizing plate is positioned on the installation foundation, when the bottom of the upright post 7 is 40-100mm away from the foundation position, two datum lines of the bottom of the upright post 7 and the foundation are adjusted to reach an accurate position, the crane is commanded to descend to be in place, all bolt nuts are screwed, the steel column is temporarily fixed, and the lifting hook can be.
The steel beam 11 is hoisted through a 25T crane, the painted surface of the steel beam 11 is protected at the hoisting point, two ends of the steel beam 11 are tensioned through hemp ropes, the steel beam 11 is hoisted continuously after being checked to be correct when being hoisted 50cm away from the ground, the steel beam 11 is preliminarily corrected before a hook is loosened when the first steel beam 11 is installed, the center of a base of the steel beam 11 is aligned with a positioning axis to be in place, the steel beam 11 is adjusted to be vertical, the lateral bending of the beam is checked, two sides of the steel beam 11 are fixed through cable ropes, then the second steel beam 11 is installed, a longitudinal supporting purline 10 is temporarily fixed with the first steel beam 11, a high-strength bolt 3 is screwed, the fixed whole is corrected, and finally the top sound absorption and insulation plate 9, the noise elimination louver 12 and the sound absorption plate.
Install metal abatvoix 4 and transparent laminated glass 5 through the manual work, metal abatvoix 4, circular arc department acoustic baffle 8 and top acoustic baffle 9 are the backplate, go up lower side board, front panel and control the curb plate and assemble through the rivet and form, and transparent laminated glass is aluminium system can dismantle the frame.
In the construction, upright columns 7 on two sides are installed firstly, then the metal sound-absorbing plate 4 and the transparent sandwich glass 5 are installed from top to bottom, and are inserted and fixed on the upright columns 7 one by one without making the sound-shielding plate shorter, and then the installation is carried out by an inclined or even bent method, so that the installation reliability is greatly improved, and the installation potential safety hazard is reduced.
The nuts used for connecting the upright post 7 of the sound barrier with the embedded part and other connecting pieces are hot-dip galvanized nuts, the non-high-strength nuts are screwed until the bolts are loosened, if the level of the upright post is adjusted, leveling nuts and washers are installed on the embedded bolts according to the designed height and leveled by a leveling ruler, the high-strength bolts 3 are installed and fastened after the components are adjusted to the central position, and the penetration directions of the high-strength bolts are consistent; when the high-strength bolt 3 is installed, the friction surface of the component is ensured to be dry; when the bolts are used for temporary connection, the number of each position is determined by calculation, but each node is not less than two; when used for permanent connection, punching with an overshoot is allowed, but the punching number is not more than 30% of the number of bolts; and (3) fastening the high-strength bolt: firstly, the initial screwing is fastened to 50% of the standard pretensioning force of the bolt, and secondly, the final screwing is fastened to the standard pretensioning force of the bolt, and the deviation is not greater than 10%; the high-strength bolt connection is adopted, when the friction surface of the component needs to be processed in a construction site, the friction coefficient value of the component needs to meet the design requirement, the friction coefficient of the attached test piece is tested group by group before installation, and the component can be installed after the component is qualified.
The column 7 is adjusted, a leveling nut and a gasket 2 are installed on the embedded bolt according to the design height, and a leveling ruler is used for leveling; leveling: from the first embedded bolt to the last embedded bolt brace engineering line, the center of the sound barrier is ensured to be on the same straight line so as to control the height difference of two adjacent steel columns, and simultaneously, a gasket 2 is arranged on each nut after the adjustment is finished.
A bayonet totally closed sound barrier of subway, including stand 7, girder steel 11, metal acoustic baffle 4, transparent sandwich glass 5, stand 7 passes through high strength bolt 3 installation and fixes on road bed 1, install cable tray 6 at 7 medial surfaces of stand, supreme metal acoustic baffle 4 of installing in proper order is down followed to stand 7, transparent sandwich glass 5, inhale acoustic baffle 8, it is fixed with girder steel 11 to install at stand 7 upper end, there is vertical support purlin 10 at girder steel 11 side-mounting, install top acoustic baffle 9 on vertical support purlin 10, install noise elimination tripe 12 directly over girder steel 11.
The steel beam 11 is formed by butt welding a plurality of H-shaped steel through Z-shaped welding seams, stiffening rib plates are welded at the joints of the stand columns 7 and the high-strength bolts 3, and gaskets 2 are installed at the joints of the stand columns 7 and the roadbed 1.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an bayonet totally closed sound barrier of subway, includes stand (7), girder steel (11), metal acoustic baffle (4), transparent laminated glass (5), its characterized in that: upright column (7) are fixed on roadbed (1) through high strength bolt (3) installation, install cable tray (6) at upright column (7) medial surface, supreme metal abatvoix (4) of installing in proper order down are followed in upright column (7), transparent laminated glass (5), inhale acoustic celotex board (8), install and be fixed with girder steel (11) in upright column (7) upper end, there is vertical support purlin (10) side-mounting in girder steel (11), install top acoustic baffle (9) on vertical support purlin (10), install noise elimination tripe (12) directly over girder steel (11).
2. The subway insertion type full-closed sound barrier according to claim 4, characterized in that: the steel beam (11) is formed by butt welding a plurality of H-shaped steel through Z-shaped welding seams.
3. The subway insertion type full-closed sound barrier according to claim 4, characterized in that: stiffening rib plates are welded at the joints of the upright columns (7) and the high-strength bolts (3).
4. A construction method of a subway insertion type totally-enclosed sound barrier as claimed in any one of claims 1 to 3, characterized in that: the method comprises the following operation processes: foundation embedded measurement and detection → crane column installation → column adjustment → metal acoustic panel installation → transparent sandwich glass installation → steel beam installation → top acoustic panel installation → acoustic louver installation → acoustic panel installation at the arc → inspection and acceptance;
firstly, carrying out on-site survey measurement on the actual distance and flatness of the sound barrier upright post embedded parts on the viaduct, the U-shaped groove and the roadbed, and adjusting the processing and manufacturing specifications and the installation flatness so as to process the distance, the height and the parallel error of a line of the embedded parts;
hoisting and adjusting the upright column, adjusting two datum lines of the bottom of the upright column and the foundation to accurate positions, screwing all high-strength bolts and nuts to temporarily fix the steel column, and removing a lifting hook after fixing; mounting the metal acoustic board and the transparent laminated glass manually;
hoisting a steel beam by a 25T crane, protecting the paint surface of the steel beam at a hoisting point, tensioning two ends of the steel beam by hemp ropes, continuously hoisting after checking that the steel beam is free of errors when hoisting 50cm away from the ground, performing primary correction on the steel beam before loosening a lifting hook when mounting a first steel beam, aligning the center of a steel beam base and a positioning axis, adjusting the steel beam to be vertical, checking the lateral bending of the beam, fixing two sides of the steel beam by using a cable rope, mounting a second steel beam, temporarily fixing a longitudinal supporting purlin and the first steel beam, screwing high-strength bolts, and correcting and fixing the whole; finally, the top sound absorption and insulation board, the silencing shutter and the sound absorption board at the arc position are installed and fixed manually;
the installation process flow of the metal sound-absorbing board, the sound-absorbing board at the arc position and the top sound-absorbing board is as follows: back panel upper frame → upper and lower side panels are put in → rivet fixation → sound absorbing cotton is put in → front panel is installed → rivet fixation → left and right side panels are installed and fixed → inspection and acceptance;
the process flow for installing the transparent sandwich glass comprises the following steps: glass cutting and cleaning processing → laminating → prepressing and exhausting → solidifying.
5. The construction method of the subway insertion type totally-enclosed sound barrier according to claim 4, characterized in that: the high-strength bolt is installed and fastened after the member is adjusted to the central position, and the penetrating directions of the high-strength bolt are consistent; when the high-strength bolt is installed, the friction surface of the component is ensured to be dry; when the bolts are used for temporary connection, the number of each position is determined by calculation, but each node is not less than two; when the composite material is used for permanent connection, punching is allowed by using an overshoot, but the punching number is not more than 30% of the number of bolts;
and (3) fastening the high-strength bolt: firstly, the initial screwing is fastened to 50% of the standard pretensioning force of the bolt, and secondly, the final screwing is fastened to the standard pretensioning force of the bolt, and the deviation is not greater than 10%; the high-strength bolt connection is adopted, and the friction coefficient value of the friction surface of the component needs to meet the design requirement when the friction surface of the component needs to be processed in a construction site.
6. The construction method of the subway insertion type totally-enclosed sound barrier according to claim 4, characterized in that: adjusting the upright column, mounting a leveling nut and a gasket on the embedded bolt according to the design height, and leveling by using a level ruler;
leveling: and ensuring that the centers of the sound barriers are on the same straight line from the first embedded bolt to the last embedded bolt brace engineering line so as to control the height difference of two adjacent steel columns, and simultaneously installing an elastic washer on each nut after the adjustment is finished.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN116516858A (en) * | 2023-06-20 | 2023-08-01 | 山西军昊实业有限公司 | Cylindrical totally-enclosed sound barrier steel structure |
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| 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 |
| CN116516858A (en) * | 2023-06-20 | 2023-08-01 | 山西军昊实业有限公司 | Cylindrical totally-enclosed sound barrier steel structure |
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