CN113585115A - Sound barrier construction process convenient for unit plate replacement - Google Patents
Sound barrier construction process convenient for unit plate replacement Download PDFInfo
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- CN113585115A CN113585115A CN202110952182.2A CN202110952182A CN113585115A CN 113585115 A CN113585115 A CN 113585115A CN 202110952182 A CN202110952182 A CN 202110952182A CN 113585115 A CN113585115 A CN 113585115A
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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
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/02—Snow fences or similar devices, e.g. devices affording protection against sand drifts or side-wind effects
- E01F7/025—Devices specially adapted for protecting against wind, e.g. screens, deflectors or attenuators at tunnel or lock entrances
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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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- Sustainable Development (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to a sound barrier construction process convenient for unit plate replacement, which comprises the following steps: basic preparation: pouring a foundation, namely pouring the embedded steel plates and the embedded bolts in the foundation; cutting a flange plate cutting opening on an outer side or inner side flange plate below the bending part of the steel upright column, wherein the cut plate serves as a movable flange plate; the movable flange plate is hinged at the flange plate cutting opening of the steel upright post through a hinge; through holes are formed in the movable flange plate and the web plate of the steel upright column at the corresponding heights, and the movable flange plate and the web plate can penetrate through the two through holes through connecting bolts; field installation: fixing a steel upright post on the foundation; opening the movable flange plate, inserting the sound barrier unit plate into the adjacent lower upright posts through the flange plate cutting openings, and inserting the sound barrier unit plate into the space between the adjacent upper upright posts through the tops of the upper upright posts; and rotating the movable flange plate to the position before cutting, and connecting and fixing the movable flange plate and the web plate of the steel upright column together through a connecting bolt and a nut.
Description
Technical Field
The invention relates to a sound barrier construction process convenient for unit plate replacement, 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 invention aims to solve the technical problem of providing a sound barrier construction process convenient for unit plate replacement, which has the advantages of convenient and quick installation, low installation hidden danger, high installation quality, and convenient later-stage replacement and maintenance, and is used for installing the sound barrier unit plates with the functions of shading, reducing noise, guiding and ventilating wind between steel stand columns with corners, reducing the stress action on the steel stand column structure and the bridge foundation structure when high-speed trains have large impact such as pulse and extreme strong wind, and realizing the convenient, quick and reliable installation and replacement of the sound barrier.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a sound barrier construction process convenient for unit plate replacement comprises the following steps:
basic preparation:
pouring a foundation, namely pouring the embedded steel plates and the embedded bolts in the foundation;
cutting a flange plate cutting opening on the outer side or inner side flange plate below the bending part of the steel upright column, wherein the length of the flange plate cutting opening can allow the sound barrier unit plate to pass through, and the cut plate is used as a movable flange plate;
the movable flange plate is hinged at the flange plate cutting opening of the steel upright post through a hinge;
through holes are formed in the movable flange plate and the web plate of the steel upright column at the corresponding heights, and the movable flange plate and the web plate can penetrate through the two through holes through connecting bolts;
field installation:
fixing a steel upright post on a foundation, wherein the upper part of a bending part of the steel upright post is an upper upright post, and the lower part of the bending part of the steel upright post is a lower upright post;
opening the movable flange plate, inserting the sound barrier unit plate into the adjacent lower upright posts through the flange plate cutting openings, and inserting the sound barrier unit plate into the space between the adjacent upper upright posts through the tops of the upper upright posts;
and rotating the movable flange plate to the position before cutting, connecting and fixing the movable flange plate and the web plate of the steel upright column together through a connecting bolt and a nut, and arranging a jacking block between the flange plate on the outer side of the steel upright column and the sound barrier unit plate.
As a further improvement of the present invention, in the basic manufacturing, the through hole may be drilled before the movable flange plate is cut, may be drilled after the movable flange plate is hinged to the steel column, or may be drilled when the movable flange plate is cut and is not hinged to the steel column.
As a further improvement of the invention, the steel upright post and the guardrail upright post are fixed in sequence when the steel upright post is fixed on a foundation, and the steel upright post and the guardrail upright post are fixedly connected together by a connecting plate and a connecting rod through a triangular stabilizing structure, wherein the corner of the steel upright post faces outwards.
As a further improvement of the invention, the steel upright post is in a shape of a < ">, and 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 bent part 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 upright of the guardrail, 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, the bending part of the steel upright post is provided with a drill hole, and after the installation of the sound barrier unit plate in the field installation is finished, the bending part between the steel upright posts is provided with an outer corner connecting plate which extends transversely; and after the sound barrier unit plate is installed in field installation, the top of the upper upright post is buckled with a top cap.
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 unit plates at the later stage, is used for installing the 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 the steel stand column structure and the bridge foundation structure when high-speed trains have large impact such as pulse and extreme strong wind, and realizes convenient, rapid and reliable installation and replacement of the sound barrier.
Through set up the flange board cutting cut on the stand down to set up mobile flange board, lower part sound barrier cell board passes through between the adjacent lower stand is put into to flange board cutting cut, upper portion sound barrier cell board is put into between the adjacent last stand through last 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, and the installation is changed conveniently.
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 left side view of the present invention.
Fig. 4 is a partially enlarged schematic view of fig. 3 at B.
Fig. 5 is a sectional view of the lower sound barrier unit panel in the present invention.
Fig. 6 is a partially enlarged schematic view of fig. 5 at C.
Fig. 7 is a sectional view of an upper sound barrier unit panel in the present invention.
Fig. 8 is a schematic structural view of a web connecting plate in the present invention.
Fig. 9 is a schematic structural view of the opened state of the movable flange 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 sound-proof and sound-proof composite foundation comprises a foundation 1, embedded bolts 2, guardrail upright columns 3, lower upright columns 4, upper upright columns 5, sound-proof barrier cell boards 6, a shell 6-1, sound-absorbing materials 6-2, sound-proof boards 6-3, lower fasteners 6-4, tightening blocks 7, top covers 8, first connecting boards 9, second connecting boards 10, third connecting boards 11, connecting rods 12, web connecting boards 13, bottom boards 14, embedded steel plates 15, flange plate cutting openings 16, movable flange plates 17, outer corner connecting boards 18, hinges 19 and connecting bolts 20.
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 for facilitating replacement of a cell plate as shown in fig. 1 to 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.
The steel upright post is provided with a bending part, a flange plate cutting opening 16 is cut on the outer side or inner side flange plate below the bending part of the steel upright post, the upper and lower lengths of the flange plate cutting opening 16 can allow the sound barrier unit plate 6 to pass through, and the cut plate is used as a movable flange plate 17; in this embodiment, the upper part of the bent part of the steel upright column is an upper upright column 5, the lower part of the bent part of the steel upright column is a lower upright column 4, and the flange plate cutting opening 16 is cut on the flange plate on one side of the web plate of the lower upright column 4 and cut along the whole length of the lower upright column 4, as shown in fig. 3;
the movable flange plate 17 is hinged at the edge of the flange plate cutting opening 16 of the steel upright post through a plurality of hinges 19;
corresponding through holes are formed in the movable flange plate 17 and the web plate of the steel upright column at corresponding heights, and the movable flange plate and the web plate can penetrate through the two through holes through connecting bolts 20; the via holes may be drilled before the movable flange plate 17 is cut, after the movable flange plate 17 is hinged to the steel stud, or when the movable flange plate 17 is cut and not yet hinged to the steel stud.
Field installation:
the steel upright post is fixed on the foundation 1, the steel upright post (H-shaped steel upright post) and the guardrail upright post 3 which are in the shape of the < ">" are fixed in sequence, the steel upright post and the guardrail upright post 3 are fixedly connected together by adopting a triangular stable structure through the connecting plate and the connecting rod 12, the stability of the whole structure is improved, and the corner of the steel upright post is outward.
Opening the movable flange plate 17, inserting the sound barrier unit plate 6 into the adjacent lower upright 4 through the flange plate cutting opening 16, and inserting the sound barrier unit plate 6 between the adjacent upper uprights 5 through the tops of the upper uprights 5;
and rotating the movable flange plate 17 to a position before cutting, connecting and fixing the movable flange plate 17 and a web plate of the steel upright column through a connecting bolt 20 and a nut, 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 column and the sound barrier unit plate 6. The connecting bolt 20 is a torsion shear resistant high-strength bolt, and the nut is a locking nut and has a locking effect.
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. And cutting the flange plate cutting openings 16 on the flange plate on one side of the web plate on each lower upright post 4 so as to ensure the integral strength of the lower upright post 4, namely, the flange plate cutting openings 16 are formed on only one side of the flange plates on two sides of the lower sound barrier unit plate.
In this embodiment, the fixing form between the lower column 4 and the upper column 5 is divided into 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 bent part of the steel upright column, a first connecting plate 9 fixedly arranged on the inner side of the upper part of the steel upright column and a third connecting plate 11 fixedly arranged on the guardrail upright column 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, the bending part of the steel upright posts is provided with a drill hole, after the sound barrier unit plate 6 is installed in field installation, the bending part between the steel upright posts is provided with an outer corner connecting plate 5-2 which extends transversely, and the steel upright posts are installed through the drill hole and the bolt, so that the 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 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 later period, is used for installing the sound barrier unit plate 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 structure and the bridge foundation structure when high-speed train pulses, extreme strong wind and other large impacts are caused, and for some special-shaped stand columns, such as straight L-shaped stand columns, fully-closed stand columns, semi-closed stand columns and the like, the sound barrier is convenient, quick and reliable to install and replace.
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 sound barrier construction process convenient for unit plate replacement is characterized by comprising 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);
cutting a flange plate cutting opening (16) on the outer side or inner side flange plate below the bending part of the steel upright column, wherein the length of the flange plate cutting opening (16) can allow the sound barrier unit plate (6) to pass through, and the cut plate serves as a movable flange plate (17);
the movable flange plate (17) is hinged to a flange plate cutting opening (16) of the steel upright column through a hinge (19);
through holes are formed in the movable flange plate (17) and the web plate of the steel upright column at the corresponding heights, and can penetrate through the two through holes through connecting bolts (20);
field installation:
fixing a steel upright on a foundation (1), wherein the upper part of a bending part of the steel upright is an upper upright (5), and the lower part of the bending part of the steel upright is a lower upright (4);
opening the movable flange plate (17), inserting the sound barrier unit plate (6) into the adjacent lower upright posts (4) through the flange plate cutting openings (16), and inserting the sound barrier unit plate (6) into the space between the adjacent upper upright posts (5) through the tops of the upper upright posts (5);
and rotating the movable flange plate (17) to a position before cutting, connecting and fixing the movable flange plate (17) and a web plate of the steel upright column together through a connecting bolt (20) and a nut, and arranging a jacking block (7) between the flange plate on the outer side of the steel upright column and the sound barrier unit plate (6).
2. The sound barrier construction process facilitating unit board replacement according to claim 1, wherein: in basic manufacturing, the through hole can be drilled before the movable flange plate (17) is cut, can be drilled after the movable flange plate (17) is hinged on the steel upright, or can be drilled when the movable flange plate (17) is cut and is not hinged on the steel upright.
3. The sound barrier construction process facilitating unit board replacement according to claim 1, wherein: the installation on site, when fixed steel stand on foundation (1), successively fixed steel stand, guardrail stand (3), adopt triangle-shaped stable structure with steel stand and guardrail stand (3) fixed connection together through connecting plate and connecting rod (12), wherein steel stand bight is outside.
4. The sound barrier construction process facilitating unit board replacement according to claim 1, wherein: the steel upright post is in a shape of a plus (or minus) and is welded together by a lower upright post (4) and an upper upright post (5); 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.
5. The sound barrier construction process facilitating unit board replacement according to claim 4, 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.
6. The sound barrier construction process facilitating unit board replacement according to claim 5, 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.
7. The sound barrier construction process facilitating unit board replacement 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).
8. The sound barrier construction process facilitating unit board replacement 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.
9. The sound barrier construction process facilitating unit board replacement according to claim 3, wherein: the connecting plate comprises a second connecting plate (10) fixedly arranged on the inner side of the bent part of the steel upright column, a first connecting plate (9) fixedly arranged on the inner side of the upper part of the steel upright column and a third connecting plate (11) fixedly arranged on the guardrail upright column (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.
10. The sound barrier construction process facilitating unit board replacement according to claim 1, wherein: the bending parts of the steel upright posts are provided with drilled holes, and after the sound barrier unit plates (6) are installed in field installation, the bending parts between the steel upright posts are provided with transversely extending outer corner connecting plates (18); 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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| CN202110952182.2A CN113585115A (en) | 2021-08-19 | 2021-08-19 | Sound barrier construction process convenient for unit plate replacement |
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Application publication date: 20211102 |