CN114277668A - Fold-line-shaped bridge sound barrier stand column, sound barrier system and construction method - Google Patents
Fold-line-shaped bridge sound barrier stand column, sound barrier system and construction method Download PDFInfo
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- CN114277668A CN114277668A CN202110183080.9A CN202110183080A CN114277668A CN 114277668 A CN114277668 A CN 114277668A CN 202110183080 A CN202110183080 A CN 202110183080A CN 114277668 A CN114277668 A CN 114277668A
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- 230000009467 reduction Effects 0.000 claims description 18
- 230000030279 gene silencing Effects 0.000 claims description 13
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- 238000009434 installation Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
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Abstract
The invention discloses a fold-line-shaped bridge sound barrier stand column, a sound barrier system and a construction method, wherein the sound barrier system comprises a bridge and guardrail side wall steps arranged on two sides of the bridge in the length direction, the top of each guardrail side wall step is sequentially provided with a plurality of fold-line-shaped bridge sound barrier stand columns along the length direction, each fold-line-shaped bridge sound barrier stand column comprises a bridge guardrail stand column and a fold-line sound barrier stand column combination, the bridge guardrail stand columns are positioned on the inner sides of the fold-line sound barrier stand column combinations, and a noise elimination plate assembly is assembled between every two adjacent fold-line sound barrier stand column combinations in a matching manner; the top end of the bridge guardrail column is correspondingly and fixedly provided with a guardrail column connecting plate, and the guardrail column connecting plate is connected with the inner side of the broken line sound barrier column assembly through a support pull rod assembly. The bridge sound barrier stand column is convenient to construct and assemble and good in transverse wind resistance, and the broken line-shaped outline with good pneumatic performance is adopted, so that the pneumatic appearance of a bridge is improved, wind-induced vibration is reduced, and the driving safety under transverse wind is guaranteed.
Description
Technical Field
The invention relates to the technical field of bridge sound barrier engineering, in particular to a fold-line-shaped bridge sound barrier stand column, a sound barrier system and a construction method, and particularly relates to a sound barrier system capable of obviously improving the pneumatic appearance of a bridge and reducing wind-induced vibration of the bridge.
Background
For a bridge with the bridge deck height of more than 80m, the wind speed of the bridge deck is much higher than that of the ground, the bridge easily generates vortex-induced resonance under the action of pulsating wind, the travelling comfort of a vehicle is influenced, the structural safety of the bridge is seriously influenced when the vibration amplitude is large, and in addition, the bridge deck vehicle is easily overturned by large transverse wind. In order to solve the problem of wind-induced vibration of a high-pier long-span bridge, the common method in engineering is as follows: the pneumatic appearance of bridge is changed to special horizontal separation board through to restrain the wind and cause the vibration, horizontal separation board sets up in the edge of a wing department or web department of girder usually, and the size is great, and the installation in earlier stage and the maintenance cost in later stage are higher, and influence the bridge appearance pleasing to the eye. For bridges with ultra-large span, such as cable-stayed bridges, suspension bridges and the like, fold-line-shaped air nozzles are often arranged at the edges of steel box girders, so that the influence of wind is reduced.
In order to ensure the safety of the high-altitude bridge-deck vehicle running under the condition of cross wind, the cross wind is changed and reduced by arranging a special wind barrier. The structure of the wind barrier is similar to that of a guardrail, the stand columns arranged at certain intervals are in a fold line shape and are connected through semi-circular groove section cross beams, and gaps are reserved among the cross beams. The windbreak with the zigzag profile can change the direction of most of the airflow, and the remaining airflow is disturbed after flowing through the gap between the cross beams, so that the wind speed is greatly reduced, and the driving safety is not threatened.
When a bridge passes through a town residential area, a natural protection area, a bird gathering area and the like, in order to reduce the damage of bridge deck driving noise, light and the like to the surrounding environment, an environmental protection department often issues administrative documents, and sound barriers are required to be arranged on two sides of the bridge deck.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a fold-line bridge sound barrier upright post, a sound barrier system and a construction method, which have the characteristics of convenience in construction and assembly, good transverse wind resistance, good sound receiving effect, convenience in disassembly and assembly, easiness in maintenance and the like.
The purpose of the invention is realized by the following technical scheme:
a broken line type bridge sound barrier upright post comprises a bridge guardrail upright post and a broken line sound barrier upright post combination body, wherein the broken line sound barrier upright post combination body is formed by combining a lower upright post and an upper upright post at an included angle, and the bridge guardrail upright post is positioned on the inner side of the broken line sound barrier upright post combination body; the top end of the bridge guardrail column is correspondingly and fixedly provided with a guardrail column connecting plate towards one side of the broken line sound barrier column assembly, and the guardrail column connecting plate is connected with the inner side of the broken line sound barrier column assembly through a support pull rod assembly; and the lower upright post is provided with a lower side silencing plate mounting groove, and the upper upright post is provided with an upper side silencing plate mounting groove.
In order to better realize the sound barrier upright post, an inner side lower connecting plate is fixed on the inner side of the lower upright post, an inner side upper connecting plate is fixed on the inner side of the upper upright post, and the inner side upper connecting plate and the inner side lower connecting plate are fixedly connected through a plurality of connecting bolts C; the outer side of the lower upright post is fixed with an outer side lower connecting plate, the outer side of the upper upright post is fixed with an outer side upper connecting plate, and the outer side upper connecting plate and the outer side lower connecting plate are fixedly connected through a plurality of connecting bolts B.
According to a preferred embodiment of the sound barrier pillar, the support pull rod assembly comprises a support pull rod A and a support pull rod B, the horizontal heights of the lower half part of the guardrail pillar connecting plate and the inner side lower connecting plate are equal, and the inner side lower connecting plate and the lower half part of the guardrail pillar connecting plate are fixedly connected through the support pull rod A; the inner side of the middle part of the upper upright is fixed with an inner side connecting plate of the upper upright, and the inner side connecting plate of the upper upright is fixedly connected with the upper half part of the guardrail upright connecting plate through a supporting pull rod B.
According to a preferred embodiment of the sound barrier upright post, the end parts of the two ends of the supporting pull rod A are detachably connected and fixed with the inner side lower connecting plate and the lower half part of the guardrail upright post connecting plate through connecting bolts A; the end parts of the two ends of the supporting pull rod B are detachably connected and fixed with the upper half part of the upper side connecting plate of the upper stand column and the upper half part of the guardrail stand column connecting plate through connecting bolts B.
According to a preferred embodiment of the sound barrier upright post of the invention, the top end of the upper upright post is inserted with a top cap.
According to a preferred embodiment of the sound barrier upright post, an included angle formed between the lower upright post and the upper upright post of the broken line sound barrier upright post assembly is 110-130 degrees.
A sound barrier system comprises a bridge and guardrail side wall steps arranged on two sides of the bridge in the length direction, wherein a plurality of fold-line-shaped bridge sound barrier stand columns are sequentially arranged at the tops of the guardrail side wall steps along the length direction and comprise bridge guardrail stand columns and fold-line sound barrier stand column assemblies, the bridge guardrail stand columns are positioned on the inner sides of the fold-line sound barrier stand column assemblies, and a noise elimination plate assembly is assembled between every two adjacent fold-line sound barrier stand column assemblies in a matched mode; the top end of the bridge guardrail column corresponds to and is fixedly provided with a guardrail column connecting plate towards one side of the broken line sound barrier column assembly, and the guardrail column connecting plate is connected with the inner side of the broken line sound barrier column assembly through a support pull rod assembly.
In order to better realize the sound barrier system, the guardrail side wall step is fixedly connected with a column base plate through an embedded foundation bolt, and a broken line sound barrier column assembly of the broken line type bridge sound barrier column is welded and fixed on the column base plate; the broken line sound barrier upright post assembly of the broken line type bridge sound barrier upright post is formed by combining a lower upright post and an upper upright post at an included angle, wherein an inner side lower connecting plate is fixed on the inner side of the lower upright post, an inner side upper connecting plate is fixed on the inner side of the upper upright post, the inner side upper connecting plate and the inner side lower connecting plate are fixedly connected through a plurality of connecting bolts C, an outer side lower connecting plate is fixed on the outer side of the lower upright post, an outer side upper connecting plate is fixed on the outer side of the upper upright post, and the outer side upper connecting plate and the outer side lower connecting plate are fixedly connected through a plurality of connecting bolts B; the supporting pull rod assembly comprises a supporting pull rod A and a supporting pull rod B, the horizontal heights of the lower half part of the guardrail column connecting plate and the inner side lower connecting plate are equal, the inner side lower connecting plate and the lower half part of the guardrail column connecting plate are fixedly connected through the supporting pull rod A, the inner side of the middle part of the upper column is fixedly provided with an inner side connecting plate of the upper column, and the inner side connecting plate of the upper column and the upper half part of the guardrail column connecting plate are fixedly connected through the supporting pull rod B; the noise reduction plate assembly of the zigzag bridge noise barrier stand column comprises an upper noise reduction plate and a lower noise reduction plate, wherein lower noise reduction plate mounting grooves are formed in the lower stand column, upper noise reduction plate mounting grooves are formed in the upper stand column, the upper noise reduction plate is mounted between the upper noise reduction plate mounting grooves of the two adjacent upper stand columns in a matched mode, and the lower noise reduction plate is mounted between the lower noise reduction plate mounting grooves of the two adjacent lower stand columns in a matched mode.
According to a preferred embodiment of the sound barrier system of the present invention, an included angle formed between the lower pillar and the upper pillar of the broken line sound barrier pillar assembly is 110 to 130 degrees; the two end parts of a support pull rod A of the broken line sound barrier upright post assembly are detachably connected and fixed with an inner side lower connecting plate and the lower half part of a guardrail upright post connecting plate through connecting bolts A respectively; the end parts of two ends of a support pull rod B of the broken line sound barrier upright post assembly are detachably connected and fixed with the upper half part of the upper upright post connecting plate and the upper side connecting plate of the upper upright post through connecting bolts B respectively.
A construction method of a sound barrier system comprises the following steps:
A. constructing a bridge, constructing guardrail side wall steps along two sides of the length direction of the bridge respectively, embedding embedded foundation bolts during construction in the guardrail side wall steps, fixing the upright post base plate at the top of the guardrail side wall steps through the embedded foundation bolts, wherein the embedded foundation bolts are provided with foundation fastening nuts, and the foundation fastening nuts of the embedded foundation bolts are fastened, locked and fixed with the upright post base plate;
B. the construction method comprises the following steps of sequentially constructing the fold-line-shaped bridge sound barrier stand columns on the steps of the side walls of the guardrails along the length direction:
b1, the fold-line-shaped bridge sound barrier upright post comprises a bridge guardrail upright post and a fold-line sound barrier upright post assembly corresponding to the bridge guardrail upright post, wherein the bridge guardrail upright post is of a vertical concrete structure poured on a guardrail side wall step, and the fold-line sound barrier upright post assembly comprises a lower upright post and an upper upright post;
b11, obliquely welding and fixing the bottom of a lower upright post of the broken line sound barrier upright post assembly to the top of an upright post seat plate, fixing an inner side lower connecting plate at the inner side of the top of the lower upright post, fixing an outer side lower connecting plate at the outer side of the top of the lower upright post, fixing a guardrail upright post connecting plate at one side of a bridge guardrail upright post facing the lower upright post, connecting and fixing a support pull rod A between the lower half part of the guardrail upright post connecting plate and the inner side lower connecting plate of the lower upright post through a connecting bolt A, and integrally combining the support pull rod A, the lower upright post and the bridge guardrail upright post to form a triangular structure;
the method comprises the following steps of sequentially constructing lower stand columns of the zigzag bridge sound barrier stand columns along the length direction of steps of the side wall of the guardrail, and arranging lower sound-absorbing plates between lower sound-absorbing plate mounting grooves of two adjacent lower stand columns in a matched manner;
b12, an inner side upper connecting plate is fixed on the inner side of the bottom of an upper upright post of the broken line sound barrier upright post assembly, an outer side upper connecting plate is fixed on the outer side of the bottom of the upper upright post, an inner side connecting plate of the upper upright post is fixed on the inner side of the middle part of the upper upright post, the upper upright post is installed on a lower upright post in a matching way, the outer side upper connecting plate of the upper upright post corresponds to the outer side lower connecting plate of the lower upright post and is fixedly connected through a connecting bolt B, and the inner side upper connecting plate of the upper upright post corresponds to the inner side lower connecting plate of the lower upright post and is fixedly connected through a connecting bolt C; a support pull rod B is fixedly connected between an upper upright inner side connecting plate of the upper upright and the upper half part of the guardrail upright connecting plate through a connecting bolt B, the support pull rod B, a support pull rod A, the upper upright and the top end of the bridge guardrail upright are connected into a stable triangular structure, and a top cover cap is inserted into the upper upright;
the upper upright posts of the zigzag bridge sound barrier upright posts are sequentially constructed along the length direction of the steps of the side wall of the guardrail, and upper side sound-absorbing plates are arranged between the upper side sound-absorbing plate mounting grooves of two adjacent upper upright posts in a matching way;
the broken line type bridge sound barrier upright post forms an upright post supporting structure of the sound barrier system, and the upper side sound-absorbing plate and the lower side sound-absorbing plate are combined to form a sound-absorbing plate component of the sound barrier system.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the invention provides a bridge sound barrier upright post which is convenient to construct and assemble and has good transverse wind resistance, and is suitable for a large-span high-pier bridge which needs to be provided with a sound barrier and passes through residential areas, natural protection areas and the like; the sound barrier has the function of changing the pneumatic appearance of the bridge through reasonable design, can serve as a wind barrier, and has the characteristics of good sound receiving effect, convenience in disassembly and assembly, easiness in maintenance and the like.
(2) The sound barrier upright post adopts a broken line-shaped profile with good pneumatic performance, and is mainly characterized by consisting of an upper upright post and a lower upright post which are detachable, wherein the lower upright post is outwards inclined at a certain angle, the upper upright post is inwards inclined at a certain angle, and the upper upright post is connected with the upright post of the bridge guardrail through a bolted stay bar, so that the bearing capacity is improved.
(3) The invention utilizes the sound barrier with the broken line-shaped outline, has multiple functions, improves the aerodynamic appearance of the bridge, reduces wind-induced vibration, can ensure the driving safety under crosswind by serving as a wind barrier, has an assembled structure, reduces the construction difficulty and saves the construction cost.
(4) The profile of the broken line has the function of guiding airflow, prevents cross wind from threatening the driving safety of the bridge deck, has better sealing effect due to the broken line profile, and obviously improves the sound receiving effect compared with the traditional vertical sound barrier upright post.
Drawings
FIG. 1 is a schematic side view of a sound barrier system according to the present invention;
FIG. 2 is a schematic view of a front view of a sound barrier system according to the present invention;
fig. 3 is a schematic view of a construction flow of a zigzag bridge sound barrier column in the sound barrier system construction method of the present invention.
Wherein, the names corresponding to the reference numbers in the drawings are:
1-embedded foundation bolts, 2-column seat plates, 3-foundation fastening nuts, 4-lower columns, 5-lower-side sound-absorbing plates, 6-inner-side lower plates, 7-guardrail column lower plates, 8-supporting pull rods A, 9-connecting bolts A, 10-upper columns, 11-outer-side lower plates, 12-outer-side upper plates, 13-connecting bolts B, 14-inner-side upper plates, 15-connecting bolts C, 16-upper-column inner-side upper plates, 17-supporting pull rods B, 18-connecting bolts B, 19-upper-side sound-absorbing plates, 20-top caps, 21-bridges, 211-guardrail side wall steps and 22-bridge guardrail columns.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
examples
As shown in fig. 1 to 3, a fold-line-shaped pillar of a bridge sound barrier includes a pillar 22 of a bridge guardrail and a pillar assembly of a fold-line sound barrier, where the pillar assembly of the fold-line sound barrier is formed by combining a lower pillar 4 and an upper pillar 10 to form an included angle, the included angle formed between the lower pillar 4 and the upper pillar 10 of the pillar assembly of the fold-line sound barrier is 110 to 130 degrees, and as shown in fig. 1, the included angle formed between the lower pillar 4 and the upper pillar 10 of this embodiment is 120 degrees. The bridge guardrail column 22 is positioned on the inner side of the broken line sound barrier column combination; the top end of the bridge guardrail column 22 is correspondingly fixedly provided with a guardrail column connecting plate 7 towards one side of the broken line sound barrier column assembly, and the guardrail column connecting plate 7 is connected with the inner side of the broken line sound barrier column assembly through a support pull rod assembly. And a lower side silencing plate mounting groove is formed in the lower upright post 4, and an upper side silencing plate mounting groove is formed in the upper upright post 10.
As shown in fig. 1, an inner lower joint plate 6 is fixed on the inner side of a lower upright 4, a top cap 20 is inserted at the top end of an upper upright 10, an inner upper joint plate 14 is fixed on the inner side of the upper upright 10, and the inner upper joint plate 14 and the inner lower joint plate 6 are fixedly connected through a plurality of connecting bolts C15. An outer lower connecting plate 11 is fixed on the outer side of the lower upright post 4, an outer upper connecting plate 12 is fixed on the outer side of the upper upright post 10, and the outer upper connecting plate 12 and the outer lower connecting plate 11 are fixedly connected through a plurality of connecting bolts B13.
As shown in fig. 1 and 2, the bracing assembly of the present invention includes a bracing rod A8 and a bracing rod B17, the lower half of the guardrail post connecting plate 7 is at the same level as the inner lower connecting plate 6, and the inner lower connecting plate 6 and the lower half of the guardrail post connecting plate 7 are connected and fixed by the bracing rod A8. An upper upright inner side connecting plate 16 is fixed on the inner side of the middle part of the upper upright 10, and the upper upright inner side connecting plate 16 and the upper half part of the guardrail upright connecting plate 7 are fixedly connected through a support pull rod B17.
As shown in fig. 1 and 2, the ends of the two ends of the supporting rod A8 of the present embodiment are detachably connected and fixed to the lower half of the inner lower connecting plate 6 and the guardrail column connecting plate 7 by connecting bolts a 9. The end parts of the two ends of the supporting pull rod B17 are detachably connected and fixed with the upper half part of the upper upright post connecting plate 16 and the upper half part of the guardrail upright post connecting plate 7 through connecting bolts B18.
The utility model provides a sound barrier system, includes bridge 21 and the guardrail side wall step 211 of locating bridge 21 length direction both sides, guardrail side wall step 211 top is equipped with a plurality of broken line shape bridge sound barrier stand along length direction in proper order, and broken line shape bridge sound barrier stand includes bridge guardrail stand 22 and broken line sound barrier stand assembly, and bridge guardrail stand 22 is located broken line sound barrier stand assembly inboard, and the cooperation is equipped with the noise elimination board subassembly between two adjacent broken line sound barrier stand assemblies. The top end of the bridge guardrail column 22 is correspondingly fixedly provided with a guardrail column connecting plate 7 towards one side of the broken line sound barrier column assembly, and the guardrail column connecting plate 7 is connected with the inner side of the broken line sound barrier column assembly through a support pull rod assembly.
As shown in fig. 1 and 2, the guardrail side wall step 211 is fixedly connected with a column base plate 2 through embedded anchor bolts 1, and a broken line sound barrier column assembly of the broken line type bridge sound barrier column is welded and fixed on the column base plate 2. The broken line sound barrier upright post assembly of the broken line-shaped bridge sound barrier upright post is formed by combining a lower upright post 4 and an upper upright post 10 to form an included angle, the included angle formed between the lower upright post 4 and the upper upright post 10 of the broken line sound barrier upright post assembly is 110-130 degrees, as shown in fig. 1, the included angle formed between the lower upright post 4 and the upper upright post 10 is 120 degrees in the embodiment. The inboard 6 that descends of being fixed with of lower stand 4 inboard, the inboard 14 that upwards stands 10 inboard is fixed with of going up, connect fixedly through a plurality of connecting bolt C15 between inboard 14 and the inboard 6 that descend the fishplate bar (before connecting fixedly through connecting bolt C15, go up stand 10 bottom and down stand 4 top and can adopt the welding mode to fix in advance), the lower stand 4 outside is fixed with the fishplate bar 11 under the outside, it is fixed with the outside fishplate bar 12 to go up the stand 10 outside, connect fixedly through a plurality of connecting bolt B13 between the fishplate bar 12 and the outer fishplate bar 11 down of outside. The support pull rod assembly comprises a support pull rod A8 and a support pull rod B17, the horizontal height of the lower half part of the guardrail upright post connecting plate 7 is equal to that of the lower half part of the inner side connecting plate 6, the lower half part of the inner side connecting plate 6 and the lower half part of the guardrail upright post connecting plate 7 are fixedly connected through the support pull rod A8, the inner side of the middle of the upper upright post 10 is fixedly provided with an inner side connecting plate 16 of the upper upright post, and the inner side connecting plate 16 of the upper upright post and the upper half part of the guardrail upright post connecting plate 7 are fixedly connected through a support pull rod B17. The noise elimination plate assembly of the zigzag bridge noise barrier stand column comprises an upper noise elimination plate 19 and a lower noise elimination plate 5, wherein lower noise elimination plate mounting grooves are formed in lower stand columns 4, upper noise elimination plate mounting grooves are formed in upper stand columns 10, the upper noise elimination plate 19 is installed between the upper noise elimination plate mounting grooves of the upper stand columns 10 in a matched mode, and the lower noise elimination plate 5 is installed between the lower noise elimination plate mounting grooves of the lower stand columns 4 in a matched mode.
As shown in fig. 1 and 2, the end parts of the two ends of the support pull rod A8 of the broken line sound barrier upright post assembly are detachably connected and fixed with the inner lower connecting plate 6 and the lower half part of the guardrail upright post connecting plate 7 through connecting bolts a 9. The end parts of two ends of a supporting pull rod B17 of the broken line sound barrier upright post assembly are detachably connected and fixed with the upper half part of the upper upright post inner side connecting plate 16 and the guardrail upright post connecting plate 7 through connecting bolts B18 respectively.
A construction method of a sound barrier system comprises the following steps:
A. the construction method comprises the following steps of constructing a bridge 21, constructing guardrail side wall steps 211 respectively along two sides of the length direction of the bridge 21, pre-embedding embedded foundation bolts 1 in the construction process of the guardrail side wall steps 211, fixing a column base plate 2 at the top of the guardrail side wall steps 211 through the pre-embedded foundation bolts 1, enabling the pre-embedded foundation bolts 1 to be provided with foundation fastening nuts 3, and fastening, locking and fixing the column base plate 2 through the foundation fastening nuts 3 of the pre-embedded foundation bolts 1, as shown in fig. 3 a.
B. The construction method comprises the following steps of sequentially constructing the fold-line-shaped bridge sound barrier stand columns on the guardrail side wall steps 211 along the length direction:
b1, the fold line-shaped bridge sound barrier upright post comprises a bridge guardrail upright post 22 and a fold line sound barrier upright post assembly corresponding to the bridge guardrail upright post 22, wherein the bridge guardrail upright post 22 is of a vertical concrete structure poured on the guardrail side wall step 211, and the fold line sound barrier upright post assembly comprises a lower upright post 4 and an upper upright post 10.
B11, become slant welded fastening in 4 bottoms of lower stands of broken line sound barrier stand combination at 2 tops of stand bedplate, 4 top inboards of lower stands are fixed with inboard fishplate bar 6 down, 4 top outsides of lower stands are fixed with outboard fishplate bar 11 down, 4 one side is fixed with guardrail stand fishplate bar 7 down towards stand under at bridge railing post 22, it is fixed with support pull rod A8 to connect through connecting bolt A9 between the fishplate bar 6 down of guardrail stand fishplate bar 7 lower half and the inboard of lower stand 4, support pull rod A8, lower stand 4, bridge railing post 22 wholly makes up and connects into the triangle-shaped structure, as shown in figure 3B.
The lower upright posts 4 of the zigzag bridge sound barrier upright posts are sequentially constructed along the length direction of the guardrail side wall step 211, and lower side sound-absorbing plates 5 are arranged between the lower side sound-absorbing plate mounting grooves of two adjacent lower upright posts 4 in a matching way, as shown in fig. 3 c; the lower side silencing plates 5 are matched and inserted between the lower side silencing plate mounting grooves of the two adjacent lower stand columns 4, and each lower side silencing plate 5 forms a declination silencing assembly.
B12, an inner side upper joint plate 14 is fixed on the inner side of the bottom of an upper upright post 10 of the broken line sound barrier upright post assembly, an outer side upper joint plate 12 is fixed on the outer side of the bottom of the upper upright post 10, an inner side upper joint plate 16 of the upper upright post is fixed on the inner side of the middle part of the upper upright post 10, the upper upright post 10 is installed on a lower upright post 4 in a matching way, the outer side upper joint plate 12 of the upper upright post 10 corresponds to the outer side lower joint plate 11 of the lower upright post 4 and is fixedly connected through a connecting bolt B13, and the inner side upper joint plate 14 of the upper upright post 10 corresponds to the inner side lower joint plate 6 of the lower upright post 4 and is fixedly connected through a connecting bolt C15, as shown in figure 3 d. A support pull rod B17 is fixedly connected between the upper column inner side connecting plate 16 of the upper column 10 and the upper half part of the guardrail column connecting plate 7 through a connecting bolt B18, and the support pull rod B17, the support pull rod A8, the upper column 10 and the top end of the bridge guardrail column 22 are connected into a stable triangular structure as shown in FIG. 3 e; the top cap 20 is inserted into the upper upright post 10, and the top cap 20 is covered, so that rainwater can be effectively prevented from entering.
The upper upright posts 10 of the zigzag bridge sound barrier upright posts are sequentially constructed along the length direction of the guardrail side wall step 211, and upper side sound-absorbing plates 19 are arranged between the upper side sound-absorbing plate mounting grooves of two adjacent upper upright posts 10 in a matching way, as shown in fig. 3 f; the upper side sound-absorbing plates 19 are matched, inserted and installed between the upper side sound-absorbing plate installation grooves of two adjacent upper upright posts 10, and the upper side sound-absorbing plates 19 form an upward-inclining sound-absorbing assembly. The upward-inclination silencing assembly and the downward-inclination silencing assembly jointly form a silencing plate assembly.
The broken line type bridge sound barrier upright post forms an upright post supporting structure of the sound barrier system, and the upper side sound-absorbing plate 19 and the lower side sound-absorbing plate 5 are combined to form a sound-absorbing plate component of the sound barrier system.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a dog-ear bridge sound barrier stand, includes bridge railing stand (22), its characterized in that: the broken line sound barrier upright post assembly is formed by combining a lower upright post (4) and an upper upright post (10) at an included angle, and the bridge guardrail upright post (22) is positioned on the inner side of the broken line sound barrier upright post assembly; a guardrail upright post connecting plate (7) is correspondingly and fixedly arranged at the top end of the bridge guardrail upright post (22) towards one side of the broken line sound barrier upright post assembly, and the guardrail upright post connecting plate (7) is connected with the inner side of the broken line sound barrier upright post assembly through a support pull rod assembly; and lower side silencing plate mounting grooves are formed in the lower upright post (4), and upper side silencing plate mounting grooves are formed in the upper upright post (10).
2. The fold-line bridge sound barrier upright post according to claim 1, wherein: an inner side lower connecting plate (6) is fixed on the inner side of the lower upright post (4), an inner side upper connecting plate (14) is fixed on the inner side of the upper upright post (10), and the inner side upper connecting plate (14) and the inner side lower connecting plate (6) are fixedly connected through a plurality of connecting bolts C (15); the outer side lower connecting plate (11) is fixed to the outer side of the lower upright column (4), the outer side upper connecting plate (12) is fixed to the outer side of the upper upright column (10), and the outer side upper connecting plate (12) and the outer side lower connecting plate (11) are fixedly connected through a plurality of connecting bolts B (13).
3. The fold-line bridge sound barrier upright post according to claim 2, wherein: the supporting pull rod assembly comprises a supporting pull rod A (8) and a supporting pull rod B (17), the horizontal heights of the lower half part of the guardrail column connecting plate (7) and the inner side lower connecting plate (6) are equal, and the inner side lower connecting plate (6) and the lower half part of the guardrail column connecting plate (7) are fixedly connected through the supporting pull rod A (8); an upper upright column inner side connecting plate (16) is fixed on the inner side of the middle of the upper upright column (10), and the upper upright column inner side connecting plate (16) is fixedly connected with the upper half part of the guardrail upright column connecting plate (7) through a support pull rod B (17).
4. The fold-line bridge sound barrier upright post according to claim 3, wherein: the end parts of the two ends of the supporting pull rod A (8) are detachably connected and fixed with the inner side lower connecting plate (6) and the lower half part of the guardrail upright post connecting plate (7) through connecting bolts A (9); the end parts of the two ends of the support pull rod B (17) are detachably connected and fixed with the inner side connecting plate (16) of the upper upright post and the upper half part of the guardrail upright post connecting plate (7) through connecting bolts B (18).
5. The fold-line bridge sound barrier upright post according to claim 1, wherein: the top end of the upper upright post (10) is inserted with a top cover cap (20).
6. The fold-line bridge sound barrier upright post according to claim 1, wherein: an included angle formed between the lower upright post (4) and the upper upright post (10) of the broken line sound barrier upright post assembly is 110-130 degrees.
7. The utility model provides a sound barrier system, includes bridge (21) and guardrail side wall step (211) of locating bridge (21) length direction both sides, its characterized in that: the top of the guardrail side wall step (211) is sequentially provided with a plurality of fold-line-shaped bridge sound barrier stand columns along the length direction, each fold-line-shaped bridge sound barrier stand column comprises a bridge guardrail stand column (22) and a fold-line sound barrier stand column assembly, each bridge guardrail stand column (22) is positioned on the inner side of each fold-line sound barrier stand column assembly, and a noise elimination plate assembly is assembled between every two adjacent fold-line sound barrier stand column assemblies in a matched mode; bridge guardrail stand (22) top corresponds fixedly towards broken line sound barrier stand assembly one side and is equipped with guardrail stand fishplate bar (7), guardrail stand fishplate bar (7) are connected through supporting the pull rod subassembly with broken line sound barrier stand assembly inboard.
8. A sound barrier system according to claim 7, wherein: the guardrail side wall step (211) is fixedly connected with a column base plate (2) through an embedded foundation bolt (1), and a broken line sound barrier column assembly of the broken line type bridge sound barrier column is welded and fixed on the column base plate (2); the broken line sound barrier upright post assembly of the broken line type bridge sound barrier upright post is formed by combining a lower upright post (4) and an upper upright post (10) at an included angle, an inner side lower connecting plate (6) is fixed on the inner side of the lower upright post (4), an inner side upper connecting plate (14) is fixed on the inner side of the upper upright post (10), the inner side upper connecting plate (14) and the inner side lower connecting plate (6) are fixedly connected through a plurality of connecting bolts C (15), an outer side lower connecting plate (11) is fixed on the outer side of the lower upright post (4), an outer side upper connecting plate (12) is fixed on the outer side of the upper upright post (10), and the outer side upper connecting plate (12) and the outer side lower connecting plate (11) are fixedly connected through a plurality of connecting bolts B (13); the supporting pull rod assembly comprises a supporting pull rod A (8) and a supporting pull rod B (17), the horizontal height of the lower half part of the guardrail column connecting plate (7) is equal to that of the inner side lower connecting plate (6), the inner side lower connecting plate (6) is fixedly connected with the lower half part of the guardrail column connecting plate (7) through the supporting pull rod A (8), an upper column inner side connecting plate (16) is fixedly arranged on the inner side of the middle part of the upper column (10), and the upper half part of the upper column inner side connecting plate (16) and the upper half part of the guardrail column connecting plate (7) are fixedly connected through the supporting pull rod B (17); the noise reduction plate assembly of the zigzag bridge noise barrier stand column comprises an upper noise reduction plate (19) and a lower noise reduction plate (5), wherein lower noise reduction plate mounting grooves are formed in the lower stand column (4), upper noise reduction plate mounting grooves are formed in the upper stand column (10), the upper noise reduction plate (19) is installed between the upper noise reduction plate mounting grooves of the two adjacent upper stand columns (10) in a matched mode, and the lower noise reduction plate (5) is installed between the lower noise reduction plate mounting grooves of the two adjacent lower stand columns (4) in a matched mode.
9. A sound barrier system according to claim 8, wherein: an included angle formed between the lower upright post (4) and the upper upright post (10) of the broken line sound barrier upright post assembly is 110-130 degrees; the two end parts of a support pull rod A (8) of the broken line sound barrier upright post assembly are detachably connected and fixed with an inner side lower connecting plate (6) and the lower half part of a guardrail upright post connecting plate (7) through connecting bolts A (9) respectively; the two ends of a support pull rod B (17) of the broken line sound barrier upright post assembly are detachably connected and fixed with an upper half part of an upper upright post inner side connecting plate (16) and a guardrail upright post connecting plate (7) through connecting bolts B (18).
10. A construction method of a sound barrier system is characterized in that: the method comprises the following steps:
A. constructing a bridge (21), constructing guardrail side wall steps (211) along two sides of the bridge (21) in the length direction respectively, embedding embedded foundation bolts (1) in the guardrail side wall steps (211) in advance during construction, fixing a column base plate (2) at the top of the guardrail side wall steps (211) through the embedded foundation bolts (1), wherein the embedded foundation bolts (1) are provided with foundation fastening nuts (3), and the foundation fastening nuts (3) of the embedded foundation bolts (1) are fastened and locked to fix the column base plate (2);
B. the construction method comprises the following steps of sequentially constructing the fold-line-shaped bridge sound barrier stand columns on the side wall steps (211) of the guardrail along the length direction:
b1, the fold-line-shaped bridge sound barrier upright post comprises a bridge guardrail upright post (22) and a fold-line sound barrier upright post assembly corresponding to the bridge guardrail upright post (22), wherein the bridge guardrail upright post (22) is of a vertical concrete structure poured on a guardrail side wall step (211), and the fold-line-shaped sound barrier upright post assembly comprises a lower upright post (4) and an upper upright post (10);
b11, obliquely welding and fixing the bottom of a lower upright (4) of the broken line sound barrier upright assembly to the top of an upright seat plate (2), wherein an inner lower connecting plate (6) is fixed on the inner side of the top of the lower upright (4), an outer lower connecting plate (11) is fixed on the outer side of the top of the lower upright (4), a guardrail upright connecting plate (7) is fixed on one side, facing the lower upright (4), of a bridge guardrail upright (22), a support pull rod A (8) is fixedly connected between the lower half part of the guardrail upright connecting plate (7) and the inner lower connecting plate (6) of the lower upright (4) through a connecting bolt A (9), and the support pull rod A (8), the lower upright (4) and the bridge guardrail upright (22) are integrally combined and connected to form a triangular structure;
the method comprises the following steps that lower upright columns (4) of the zigzag bridge sound barrier upright columns are sequentially constructed along the length direction of side wall steps (211) of the guardrail, and lower sound-absorbing plates (5) are installed between lower sound-absorbing plate installation grooves of two adjacent lower upright columns (4) in a matched mode;
b12, an inner side upper connecting plate (14) is fixed on the inner side of the bottom of an upper upright (10) of the broken line sound barrier upright assembly, an outer side upper connecting plate (12) is fixed on the outer side of the bottom of the upper upright (10), an inner side upper connecting plate (16) of the upper upright is fixed on the inner side of the middle part of the upper upright (10), the upper upright (10) is installed on the lower upright (4) in a matched mode, the outer side upper connecting plate (12) of the upper upright (10) corresponds to the outer side lower connecting plate (11) of the lower upright (4) and is fixedly connected through a connecting bolt B (13), and the inner side upper connecting plate (14) of the upper upright (10) corresponds to the inner side lower connecting plate (6) of the lower upright (4) and is fixedly connected through a connecting bolt C (15); a supporting pull rod B (17) is fixedly connected between an upper upright inner side connecting plate (16) of the upper upright (10) and the upper half part of the guardrail upright connecting plate (7) through a connecting bolt B (18), the supporting pull rod B (17), a supporting pull rod A (8), the upper upright (10) and the top end of the bridge guardrail upright (22) are connected into a stable triangular structure, and a top cover cap (20) is inserted into the upper upright (10);
the upper upright columns (10) of the zigzag bridge sound barrier upright columns are sequentially constructed along the length direction of the side wall steps (211) of the guardrail, and upper side sound-absorbing plates (19) are arranged between the upper side sound-absorbing plate mounting grooves of two adjacent upper upright columns (10) in a matching way;
the broken line type bridge sound barrier upright post forms an upright post supporting structure of the sound barrier system, and the upper side sound-absorbing plate (19) and the lower side sound-absorbing plate (5) are combined to form a sound-absorbing plate component of the sound barrier system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110183080.9A CN114277668A (en) | 2021-02-08 | 2021-02-08 | Fold-line-shaped bridge sound barrier stand column, sound barrier system and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110183080.9A CN114277668A (en) | 2021-02-08 | 2021-02-08 | Fold-line-shaped bridge sound barrier stand column, sound barrier system and construction method |
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