CN113622330A - Construction process of sound barrier - Google Patents
Construction process of sound barrier Download PDFInfo
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- CN113622330A CN113622330A CN202110952217.2A CN202110952217A CN113622330A CN 113622330 A CN113622330 A CN 113622330A CN 202110952217 A CN202110952217 A CN 202110952217A CN 113622330 A CN113622330 A CN 113622330A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 83
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- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 8
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- 238000002360 preparation method Methods 0.000 claims description 3
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- 238000009413 insulation Methods 0.000 description 19
- 238000010521 absorption reaction Methods 0.000 description 15
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- 230000007613 environmental effect Effects 0.000 description 1
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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
-
- 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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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
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- Sustainable Development (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to a construction process of a sound barrier, which comprises the following steps: when the foundation is manufactured, pouring a foundation, and pouring the embedded steel plate and the embedded bolts in the foundation; when the steel upright post is installed on site, the < "> shaped steel upright post and the guardrail upright post are fixed on the foundation in sequence, the steel upright post and the guardrail upright post are fixedly connected together by adopting a triangular stable structure through a connecting plate and a connecting rod, wherein the corner of the steel upright post is outward and comprises an upper upright post and a lower upright post, and a flange plate cutting opening is cut on a flange plate at the lower part of the outer side of the upper upright post or at the lower part of the inner side of the lower upright post; inserting the sound barrier unit plates into the adjacent lower upright columns through the flange plate cutting openings, inserting the sound barrier unit plates between the adjacent upper upright columns through the tops of the upper upright columns, and arranging a jacking block between the flange plate on the outer side of each steel upright column and each sound barrier unit plate; and plugging the cutting opening of the flange plate through a reinforcing steel plate and a bolt.
Description
Technical Field
The invention relates to a construction process of a sound barrier, and particularly belongs to the technical field of sound barriers.
Background
Due to the rapid development of railways, some lines crossing rivers are more and more constructed, the conditions of construction environments and positions are more and more harsh, the awareness of people on environmental noise pollution is gradually strengthened, and the sound barrier is used as sound absorption and insulation equipment and is widely used in the field of traffic sound absorption and insulation at present, so that good effects of isolating and attenuating noise are achieved. The sound barrier used for expressway, railway and rail traffic mainly comprises upright posts, sound absorption and insulation boards and sealing bodies, the structural types of the sound barrier are all in a unit insertion type, namely two upright posts (the upright posts are generally H-shaped steel) are arranged, the unit boards are vertically inserted between the two upright posts from top to bottom, and the unit boards and the upright posts are sealed by sealing elements.
In the sound barrier installation, to general vertical type stand, only need from top to bottom vertical insert the cell board can, but under some extreme environment, for example high altitude construction, cross river and river operation, cross existing line operation, consider from aspects such as safety, the installation effectiveness all can be slower, also very easily harms the cell board during hoist and mount, the seal installation difficulty or can't reach the design installation requirement, whole installation is high to the requirement of installing meticulously. For some special-shaped columns, such as straight L-shaped columns, fully-closed columns, semi-closed columns and the like, the special-shaped columns cause great difficulty in installation of the sound barrier cell boards, and ordinary insertion installation cannot meet the requirements of the special-shaped columns which are updated day by day. In fact, due to installation problems, the life and sound absorption and insulation quality of most sound barriers are reduced before the barriers are put into operation. Meanwhile, the shape particularity of the special-shaped upright column also determines that the existing construction process has installation defects. Besides, the installation of the special-shaped upright post has the following problems: slow efficiency, high cost, increased potential safety hazard for replacement, potential quality hazard for installation and the like.
In the use process of the sound barrier, the unit plates are damaged and damaged due to rainwater erosion, sunlight irradiation aging, splash ejection, wind pressure and side pressure vibration, mounting control failure meeting the standard requirements and the like, so that the unit plates need to be replaced to ensure or maintain the functions of the unit plates. Therefore, the structural form and the construction process of the sound barrier need to be changed so as to realize convenient, quick and reliable installation and replacement of the sound barrier.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a sound barrier construction process which is convenient and quick to install, low in installation hidden danger, high in installation quality and convenient to replace and maintain at a later stage, is used for installing sound barrier unit plates with the functions of shading, reducing noise, guiding and ventilating air between steel stand columns with corners, can reduce the stress action on a steel stand column structure and a bridge foundation structure when a high-speed train has large impact such as pulse and extreme strong wind, and realizes convenient, quick and reliable installation and replacement of a sound barrier.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a construction process of a sound barrier comprises the following steps:
basic preparation:
pouring a foundation, namely pouring the embedded steel plates and the embedded bolts in the foundation;
field installation:
the method comprises the following steps that (I) a steel upright post and a guardrail upright post which are in a shape of a rectangle are fixed on a foundation in sequence, the steel upright post and the guardrail upright post are fixedly connected together by a triangular stable structure through a connecting plate and a connecting rod, wherein the corner of the steel upright post is outward and comprises an upper upright post and a lower upright post, and a flange plate cutting opening is cut on a flange plate at the lower part of the outer side of the upper upright post or at the lower part of the inner side of the lower upright post;
inserting the sound barrier unit plates into the adjacent lower upright columns through the flange plate cutting openings, inserting the sound barrier unit plates between the adjacent upper upright columns through the tops of the upper upright columns, and arranging a jacking block between the flange plate on the outer side of each steel upright column and each sound barrier unit plate;
and plugging the cutting opening of the flange plate through a reinforcing steel plate and a bolt.
As a further improvement of the invention, the steel upright post in the shape of the < "> is welded together by a lower upright post and an upper upright post; or the like, or, alternatively,
forming by a bending process; or the like, or, alternatively,
drilling is carried out at the top of the web plate of the lower upright column and the bottom of the web plate of the upper upright column, web connecting plates are arranged at two sides of the joint of the lower upright column and the upper upright column, and the lower upright column, the upper upright column and the two web connecting plates are connected together through bolts.
As a further improvement of the invention, the following processing treatment is required to be carried out on the parts before field installation:
welding: the lower upright post and the guardrail upright post are respectively welded with the bottom plate;
grinding: grinding and appearance detection are carried out on weld beads in all parts;
galvanizing: performing hot galvanizing corrosion prevention treatment on all parts;
spraying: pre-treating all parts, preheating workpieces, spraying molding powder and curing at high temperature;
and (4) checking: and (5) detecting the appearance quality of all parts.
As a further improvement of the invention, the steel upright post and the guardrail upright post are arranged on the foundation through a bottom plate, an embedded bolt and a nut.
As a further improvement of the invention, when the foundation is manufactured, the embedded bolt is screwed with a thin nut at the bottom of the embedded steel plate and is used for fixing the embedded bolt, ensuring the verticality of the embedded bolt and ensuring the embedded steel plate to be horizontally placed.
As a further improvement of the invention, the included angle between the lower upright post and the upper upright post is 110-130 degrees, and the included angle between the lower upright post and the vertical plane is 15-20 degrees.
As a further improvement of the invention, the connecting plate comprises a second connecting plate fixedly arranged on the inner side of the corner of the steel upright, a first connecting plate fixedly arranged on the inner side of the upper part of the steel upright and a third connecting plate fixedly arranged on the guardrail upright, and connecting rods are fixedly arranged between the first connecting plate and the third connecting plate and between the second connecting plate and the third connecting plate; and the connecting rod fixedly connected between the second connecting plate and the third connecting plate is positioned on an angle bisector of the corner of the steel upright.
As a further improvement of the invention, drill holes are arranged at the corners of the steel upright columns, and after the sound barrier unit plates are installed in field installation, transversely extending outer corner connecting plates are arranged at the corners between the steel upright columns.
As a further improvement of the present invention, when the flange plate cutting opening is formed at the lower portion of the outer side of the upper column, the outer corner connecting plate just covers the flange plate cutting opening, and serves as the reinforcing steel plate.
As a further improvement of the invention, after the sound barrier unit plate is installed in field installation, a top cap is buckled at the top of the upper upright post.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the invention provides a sound barrier construction process which is convenient and rapid to install, low in installation hidden danger, high in installation quality and convenient to replace and maintain at a later stage, is used for installing sound barrier unit plates with the functions of shading, reducing noise, guiding and ventilating air between steel stand columns with corners, can reduce the stress effect on a steel stand column structure and a bridge foundation structure when a high-speed train has large impact such as pulse and extreme strong wind, and realizes convenient, rapid and reliable installation and replacement of a sound barrier.
Through go up the stand lower part and set up the flange board cutting cut, lower part sound barrier cell board passes through between the adjacent lower stand is put into to flange board cutting cut, and upper portion sound barrier cell board is put into between the adjacent upper stand through the upper stand top, through the tight piece top in top between sound barrier cell board and the steel stand outside flange board, sound barrier cell board has the anti-drop function, uses safelyr.
The upper sound barrier unit plate and the lower sound barrier unit plate are at a certain included angle, and wind is blown by the inclined plane, so that wind load borne by the sound barrier structure is dispersed, and wind load is reduced by the ventilation function of the sound barrier unit plate, so that the overall safety of the bridge and the sound barrier structure is ensured. The shielding angle of the sound wave and the light wave is increased, the noise reduction function of the sound barrier is effectively improved, and the wind guiding, load reducing and shading effects are achieved. The shell is made of a multi-element alloy coating steel plate and has ultrahigh-strength anticorrosion effect.
The casing panel and the backplate side of sound barrier cell board are equipped with the bleeder vent, the sound insulation subassembly is inhaled to the water conservancy diversion ventilative includes that the preceding sound insulation subassembly that inhales that two-layer interval set up around in the casing inhales the sound insulation subassembly with after, and is adjacent preceding sound insulation subassembly and after inhale and inhale the sound insulation subassembly between intercrossing overlap the setting, sound barrier cell board possesses ventilative, shading simultaneously and inhales the sound insulation, the effect of making an uproar falls.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a partially enlarged schematic view of a portion a of fig. 1.
Fig. 3 is a further enlarged partial schematic view at a in fig. 1.
Fig. 4 is a left side view of the present invention.
Fig. 5 is a partially enlarged view of B in fig. 4.
Fig. 6 is a sectional view of the lower sound barrier unit panel in the present invention.
Fig. 7 is a sectional view of an upper sound barrier unit panel in the present invention.
FIG. 8 is a schematic view of the construction of the outer corner connecting plate of the present invention.
Fig. 9 is a schematic structural view of a web connecting plate in the present invention.
Fig. 10 is a front view schematically showing the structure of the upper sound barrier unit panel according to the present invention.
Fig. 11 is a front view schematically showing the structure of the lower sound barrier unit panel according to the present invention.
Fig. 12 is a schematic top view of the sound barrier unit panel according to the present invention.
Wherein: the concrete structure comprises a foundation 1, embedded bolts 2, guardrail uprights 3, lower uprights 4, upper uprights 5, flange plate cutting openings 5-1, outer corner connecting plates 5-2, sound barrier cell plates 6, shells 6-1, sound absorbing materials 6-2, sound insulating plates 6-3, lower fasteners 6-5, jacking blocks 7, jacking covers 8, connecting plates I9, connecting plates II 10, connecting plates III 11, connecting rods 12, web connecting plates 13, bottom plates 14 and embedded steel plates 15.
Detailed Description
For purposes of clarity and a complete description of the present invention, and the like, in conjunction with the detailed description, it is to be understood that the terms "central," "vertical," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the present invention, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
A sound barrier construction process as shown in fig. 1-12, comprising the steps of:
basic preparation:
pouring the foundation 1, and pouring the embedded steel plates 15 and the embedded bolts 2 in the foundation 1; exert pre-buried steel sheet 15, the effect can be through the accurate position of locating pre-buried bolt 2 in the hole position on the pre-buried steel sheet 15, can also be through the accurate distance of locating adjacent pre-buried steel sheet 15 in the position of placing of pre-buried steel sheet 15. The distance between two adjacent steel columns is 2m under the general condition or the distance between the two steel columns is determined according to the actual condition, and the steel column distance can be accurately positioned through the placing position of the embedded steel plate 15 in a standardized manner, so that great convenience is brought to subsequent continuous and standardized construction.
Field installation:
the method comprises the following steps that (1) a steel upright (H-shaped steel upright) and a guardrail upright 3 are fixed on a foundation base 1 in sequence, the steel upright and the guardrail upright 3 are fixedly connected together by a triangular stable structure through a connecting plate and a connecting rod 12, the stability of the whole structure is improved, wherein the steel upright is outwards arranged at the corner part and comprises an upper upright 5 and a lower upright 4, and a flange plate cutting opening 5-1 is cut on a flange plate at the lower part of the outer side of the upper upright 5 or at the lower part of the inner side of the lower upright 4;
inserting the sound barrier unit plates 6 into the adjacent lower upright posts 4 one by one through the flange plate cutting openings 5-1, inserting the sound barrier unit plates 6 into the space between the adjacent upper upright posts 5 through the tops of the upper upright posts 5, and arranging a jacking block 7 which is an elastic fastener or jacking angle steel between the flange plate on the outer side of the steel upright post and the sound barrier unit plates 6;
the flange plate cutting opening 5-1 is plugged through a reinforcing steel plate and a bolt, and the bolt is a torsion shear resistant high-strength bolt and has an anti-loosening effect. The reinforcing steel plate can only block the cutting opening 5-1 of the flange plate, and can also be transversely extended along the adjacent steel upright posts to reinforce the overall structure of the steel upright posts.
Before field installation, the following processing treatment is carried out on the parts:
welding: the lower upright post 4 and the guardrail upright post 3 are respectively welded with the bottom plate 14 together by adopting double-sided fillet weld welding, and the size of a welding fillet is 6 mm; reinforcing plates can be welded between the lower upright post 4 and the guardrail upright post 3 and the bottom plate 14 to increase the strength;
grinding: grinding and appearance detection are carried out on weld beads in all parts;
galvanizing: performing hot galvanizing corrosion prevention treatment on all parts;
spraying: pre-treating all parts, preheating workpieces, spraying molding powder and curing at high temperature; the dust on the surface of the part is removed through pretreatment, and a layer of corrosion-resistant phosphate coating capable of increasing the adhesive force of the spraying coating is produced on the surface of the workpiece, so that the rust resistance and the adhesive force of the spraying coating can be increased;
and (4) checking: and (5) detecting the appearance quality of all parts.
The steel upright post and the guardrail upright post 3 are installed on the foundation 1 through a bottom plate 14, embedded bolts 2 and nuts. When the foundation is manufactured, the embedded bolt 2 is in threaded connection with a thin nut at the bottom of the embedded steel plate 15 and is used for fixing the embedded bolt 12, ensuring the verticality of the embedded bolt and ensuring the embedded steel plate 15 to be horizontally placed. As a further optimization, the embedded bolt 12 is also screwed with a thin nut above the embedded steel plate 15, and the embedded bolt 12 is adjustably fixed on the embedded steel plate 15.
In this embodiment, a lower sound barrier unit plate is arranged between the adjacent lower upright posts 4, an upper sound barrier unit plate is arranged between the upper upright posts 5, and the top of the lower sound barrier unit plate is attached to the bottom of the upper sound barrier unit plate. The flange plate cutting openings 5-1 are formed in the lower outer side portions of the upper uprights 5 or the lower inner side portions of the lower uprights 4 so that the lower sound barrier unit panels can be inserted between the lower uprights 4 from above or from the front, the lower sound barrier unit panels are inserted from the upper portions of the lower uprights 4 when the flange plate cutting openings 5-1 are formed in the lower outer side portions of the upper uprights 5, and the lower sound barrier unit panels are inserted from the inner sides of the lower uprights 4 when the flange plate cutting openings 5-1 are formed in the inner sides of the lower uprights 4.
In this embodiment, the fixing forms of the lower upright post 4 and the upper upright post 5 are three types:
1. and the lower upright post 4 and the upper upright post 5 are welded into a whole by adopting a welding mode.
2. By adopting a bending form, when cold bending is adopted, the flange plate and the web plate on the inner side of the steel upright post can be partially cut, so that the upper edge and the lower edge of a cutting gap are just attached when the steel upright post is bent to a set angle, and the gap disappears; when hot bending is adopted, the temperature needs to be controlled within a certain range, and the whole body is bent.
3. The top of a web plate of the lower upright post 4 and the bottom of a web plate of the upper upright post 5 are drilled by adopting a bolt connection mode, the web plate connecting plates 13 are arranged on two sides of the joint of the lower upright post 4 and the upper upright post 5, and the lower upright post 4, the upper upright post 5 and the web plate connecting plates 13 are connected together by bolts.
The included angle between the lower upright post 4 and the upper upright post 5 is 110-130 degrees, and the included angle between the lower upright post 4 and the vertical plane is 15-20 degrees. In this embodiment, an included angle between the lower upright post 4 and the upper upright post 5 is 120 °, an included angle between the lower upright post 4 and the bottom plate 14 is 72 °, that is, an included angle between the lower upright post 4 and a vertical plane is 18 °. The bottom surface and the top surface of the lower upright post 4 form an included angle of 72 degrees with the flange plate thereof, and the bottom surface of the upper upright post 5 forms an included angle of 48 degrees with the flange plate thereof. The steel stand is "< shape, and this structure can play the wind-guiding effect, decomposes the forward wind pressure that the sound barrier structure bore, can effectively reduce the wind pressure load, has increased the shielding angle to sound wave and light wave simultaneously. The included angles between the top surface and the bottom surface of the lower sound barrier unit plate in the lower upright post 4 and the inner and outer side surfaces are the same as the included angles between the bottom surface and the top surface of the lower upright post 4 and the flange plate thereof; the included angle between the bottom surface of the upper sound barrier unit plate in the upper upright post 5 and the inner and outer side surfaces is the same as that between the bottom surface of the upper upright post 5 and the flange plate thereof. It should be noted that, if a plurality of lower sound barrier unit panels are required to be stacked up and down in the lower column 4, included angles between the top surface of the uppermost sound barrier unit panel and included angles between the bottom surface of the lowermost sound barrier unit panel and the inner and outer side surfaces are 72 °, or included angles between the top surface and the bottom surface of each lower sound barrier unit panel and the inner and outer side surfaces are 72 °. If a plurality of upper sound barrier unit plates need to be stacked up and down in the upper upright post 5, the included angles between the bottom surface of the lowermost sound barrier unit plate and the inner and outer side surfaces are 72 degrees.
As further optimization, the connecting plate comprises a second connecting plate 10 fixedly arranged on the inner side of the corner of the steel upright, a first connecting plate 9 fixedly arranged on the inner side of the upper part of the steel upright and a third connecting plate 11 fixedly arranged on the guardrail upright 3, connecting rods 12 are fixedly arranged between the first connecting plate 9 and the third connecting plate 11 and between the second connecting plate 10 and the third connecting plate 11, and the connecting rods 12 are angle steel (or channel steel, round steel, square tubes, turnbuckles and the like). The included angle of the two joint edges of the second connecting plate 10 and the lower upright post 4 and the upper upright post 5 is 120 degrees, and a gap is reserved at the joint of the lower upright post 4 and the upper upright post 5. And the connecting rod 12 fixedly connected between the second connecting plate 10 and the third connecting plate 11 is positioned on an angle bisector of the corner of the steel upright, namely, the connecting rod 12 and the lower upright 4 and the upper upright 5 form an included angle of 60 degrees. In addition, it need adopt the round hole rather than elliptical aperture or waist type hole to connect punching on plate and the connecting rod 12, just so can guarantee under the restraint of round hole that connecting plate and connecting rod 12 can not take place relative dislocation, prevent to destroy triangular stable structure. This structural connection subassembly can be with sound barrier and bridge railing fastening as an organic whole, has strengthened overall structure's stability and anti-wind pressure performance.
As further optimization, drill holes are formed in the corners of the steel upright columns, after the sound barrier unit plates 6 are installed in field installation, transversely extending outer corner connecting plates 5-2 are arranged in the corners between the steel upright columns, and installation is carried out through the drill holes and bolts, so that a reinforcing effect is achieved. Wherein the nut is screwed up in the outside, conveniently overhauls, and bolt assembly can adopt double nut or check bolt, nut.
As a further optimization, when the flange plate cut 5-1 is opened at the lower part of the outer side of the upper upright post 5, the outer corner connecting plate 5-2 just covers the flange plate cut 5-1 to serve as the reinforcing steel plate. When the connection is carried out through the bolts, the fastening nuts are screwed on the outer sides of the outer corner connecting plates 5-2, so that later-period overhaul and maintenance are facilitated. As an embodiment, as shown in fig. 2, the flange plate cutting opening 5-1 is opened at the bottom of the upper upright post 5, the outer corner connecting plate 5-2 is provided with a corner, and the upper and lower parts of the corner are respectively connected with the bottom of the upper upright post 5 and the top of the lower upright post 4 through bolts; as another embodiment, as shown in fig. 3, the flange plate cutting opening 5-1 is opened at the lower part of the upper column 5, a bolt connection part is left at the bottom of the upper column 5, the outer corner connection plate 5-2 is a flat plate (as shown in fig. 8), and the upper part and the lower part are respectively connected with the upper part and the lower part of the flange plate cutting opening 5-1 of the upper column 5 through bolts. The height of the outer corner connecting plate 5-2 is at least 2 times the height of the flange plate cutting opening 5-1. For the first cutting form of the flange plate cutting opening 5-1, during drilling, holes are drilled at the lower part of the upper upright post 5 and the upper end of the lower upright post 4 so as to facilitate bolt fixing of the outer corner connecting plate 5-2; for the second cutting form of the flange plate cutting opening 5-1, during drilling, holes are drilled above and below the flange plate cutting opening 5-1 at the lower part of the upper upright post 5 so as to facilitate bolt fixing of the outer corner connecting plate 5-2.
As further optimization, after the sound barrier unit plate 6 is installed in field installation, the top cap 8 is buckled at the top of the upper upright post 5, so that the sound barrier unit plate 6 has an anti-falling function and is safer to use. The top cover 8 is in a circular arc shape, a circular shape, a hexagonal shape or other special shapes, the surface of the top cover can be punched, and sound absorption materials are filled in the top cover, so that the sound absorption and noise reduction functions of the structure and the shielding effect on sound waves and light waves are further enhanced.
As further optimization, the outer side of the foundation 1 is provided with a material receiving tray for receiving bolts and nuts loosened and falling from the upper side, so that later maintenance is facilitated.
The sound barrier unit plate 6 comprises a shell 6-1 and a diversion ventilating sound absorption and insulation component arranged in the shell 6-1, air holes are formed in the sides of a panel and a back plate of the shell 6-1, the diversion ventilating sound absorption and insulation component comprises a front sound absorption and insulation component and a back sound absorption and insulation component which are arranged in the shell 6-1 at intervals in a front layer and a back layer, and the front sound absorption and insulation component and the back sound absorption and insulation component are adjacent and are mutually crossed and overlapped. A gap is reserved between the two layers of the front sound absorption and insulation component and the rear sound absorption and insulation component, so that the wind direction entering the shell 6-1 through the panel is changed, the wind forces in different directions are mutually offset, the residual wind force is transmitted out through the back plate, the stress effect on the sound barrier shell 6-1, the steel upright post structure and the bridge foundation structure is greatly reduced, and the sound barrier unit plate 6 has the effects of ventilation, shading, sound absorption and insulation and noise reduction. The upper sound barrier unit plate and the lower sound barrier unit plate are at a certain included angle, and wind is blown by the inclined plane, so that wind load borne by the sound barrier structure is dispersed, and wind load is reduced by the ventilation function of the sound barrier unit plate, so that the overall safety of the bridge and the sound barrier structure is ensured. The shell 6-1 is made of a multi-element alloy coating steel plate and has ultrahigh-strength anticorrosion effect.
This construction process installs the steel stand earlier, install guardrail stand 3 again, then erection joint plate and connecting rod 12, install sound barrier cell board 6 at last, this kind of construction flow could carry out the installation of sound barrier cell board 6 under the prerequisite of stable in structure safety such as steel stand, otherwise only install the steel stand and just to carry out the danger coefficient of installation to sound barrier cell board 6 very big, especially the operation on the bridge, the condition such as proruption strong wind, the most likely because the unstability of steel stand takes place to rock, or the danger of toppling. The sound barrier construction process is convenient and quick to install, low in installation hidden danger, high in installation quality, convenient to replace and maintain in the later period, is used for installing the sound barrier unit plates 6 with the functions of shading, reducing noise and guiding and ventilating air between the steel stand columns with corners, can reduce the stress effect on the steel stand column structures and the bridge foundation structures when high-speed trains are impacted by pulse, extreme strong wind and the like, and achieves convenient, quick and reliable installation and replacement of the sound barrier.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A construction process of a sound barrier is characterized in that: which comprises the following steps:
basic preparation:
pouring a foundation (1), and pouring the embedded steel plates (15) and the embedded bolts (2) in the foundation (1);
field installation:
the foundation structure is characterized in that a 'shaped' steel upright post and a guardrail upright post (3) are fixed on a foundation (1) in sequence, the steel upright post and the guardrail upright post (3) are fixedly connected together by a triangular stable structure through a connecting plate and a connecting rod (12), wherein the corner of the steel upright post is outward and comprises an upper upright post (5) and a lower upright post (4), and a flange plate cutting opening (5-1) is cut on a flange plate at the lower part of the outer side of the upper upright post (5) or the lower part of the inner side of the lower upright post (4);
inserting the sound barrier unit plates (6) into the adjacent lower upright posts (4) through the flange plate cutting openings (5-1), inserting the sound barrier unit plates (6) between the adjacent upper upright posts (5) through the tops of the upper upright posts (5), and arranging jacking blocks (7) between the flange plates on the outer sides of the steel upright posts and the sound barrier unit plates (6);
and plugging the cutting opening (5-1) of the flange plate by a reinforcing steel plate and a bolt.
2. The sound barrier construction process according to claim 1, wherein: the steel upright post in the shape of the <' > is formed by welding a lower upright post (4) and an upper upright post (5) together; or the like, or, alternatively,
forming by a bending process; or the like, or, alternatively,
drilling is carried out at lower stand (4) web top and last stand (5) web bottom, sets up web connecting plate (13) stand (4) and last stand (5) junction both sides down, and will through the bolt stand (4), last stand (5) and two down web connecting plate (13) link together.
3. The sound barrier construction process according to claim 2, wherein: before field installation, the following processing treatment is carried out on the parts:
welding: the lower upright post (4) and the guardrail upright post (3) are respectively welded with the bottom plate (14);
grinding: grinding and appearance detection are carried out on weld beads in all parts;
galvanizing: performing hot galvanizing corrosion prevention treatment on all parts;
spraying: pre-treating all parts, preheating workpieces, spraying molding powder and curing at high temperature;
and (4) checking: and (5) detecting the appearance quality of all parts.
4. The sound barrier construction process according to claim 3, wherein: the steel upright post and the guardrail upright post (3) are installed on the foundation (1) through a bottom plate (14), embedded bolts (2) and nuts.
5. The sound barrier construction process according to claim 1, wherein: when the foundation is manufactured, the embedded bolt (2) is in threaded connection with a thin nut at the bottom of the embedded steel plate (15) and is used for fixing the embedded bolt (12), ensuring the verticality of the embedded bolt and ensuring the horizontal placement of the embedded steel plate (15).
6. The sound barrier construction process according to claim 1, wherein: the included angle between the lower upright post (4) and the upper upright post (5) is 110-130 degrees, and the included angle between the lower upright post (4) and the vertical plane is 15-20 degrees.
7. The sound barrier construction process according to claim 1, wherein: the connecting plate comprises a second connecting plate (10) fixedly arranged on the inner side of the corner of the steel upright, a first connecting plate (9) fixedly arranged on the inner side of the upper part of the steel upright and a third connecting plate (11) fixedly arranged on the guardrail upright (3), and connecting rods (12) are fixedly arranged between the first connecting plate (9) and the third connecting plate (11) and between the second connecting plate (10) and the third connecting plate (11); and a connecting rod (12) fixedly connected between the second connecting plate (10) and the third connecting plate (11) is positioned on an angle bisector of the corner of the steel upright post.
8. The sound barrier construction process according to claim 1, wherein: drilling holes are formed in the corners of the steel upright columns, and after the sound barrier unit plates (6) are installed in field installation, transversely extending outer corner connecting plates (5-2) are arranged between the steel upright columns in the corners.
9. The sound barrier construction process according to claim 8, wherein: when the flange plate cutting openings (5-1) are formed in the lower portion of the outer side of the upper upright post (5), the outer corner connecting plates (5-2) just cover the flange plate cutting openings (5-1) and serve as the reinforcing steel plates.
10. The sound barrier construction process according to claim 1, wherein: after the sound barrier unit plate (6) is installed in field installation, the top of the upper upright post (5) is buckled with a top cap (8).
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| CN202110952217.2A CN113622330A (en) | 2021-08-19 | 2021-08-19 | Construction process of sound barrier |
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| CN202110952217.2A CN113622330A (en) | 2021-08-19 | 2021-08-19 | Construction process of sound barrier |
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Application publication date: 20211109 |