Double-width bridge sound barrier installation structure and method thereof

Abstract

This invention discloses a sound barrier installation structure and method for a double-span bridge. The installation structure includes: two base plate assemblies, respectively fixed to adjacent side beams of the double-span bridge; two base assemblies, respectively fixed to corresponding base plate assemblies, with the two base assemblies forming an installation groove at a predetermined distance; each base assembly having a fastening part located on opposite sides of the installation groove; and a column adapted to be inserted into the installation groove, with fasteners adapted to and connected to the corresponding fastening parts, thereby fixing the column to the two base assemblies. The end of the column away from the base assemblies is used to connect to the sound barrier body. In this invention, by fixing base plate assemblies to adjacent side beams of the double-span bridge and then fixing base assemblies to the base plate assemblies to fix the column together, the double-span bridge can jointly bear the lateral force brought by the sound barrier.

Description

Technical Field

[0001] This invention relates to the field of municipal engineering construction technology, and further to a double-span bridge sound barrier installation structure and method. Background Technology

[0002] With the acceleration of urbanization, road traffic noise has become an increasingly prominent problem. In particular, the increasing number of elevated bridges has led to higher frequency and intensity of noise generation, seriously affecting the lives and health of surrounding residents. To reduce the impact of noise on nearby residents, the installation of sound barriers in the middle and on both sides of elevated bridges has become a commonly used environmental protection measure in urban road construction.

[0003] Common types of sound barriers include ecological sound barriers, vertical sound barriers, folded plate sound barriers, micro-arc sound barriers, and full-coverage sound barriers. Among these, vertical sound barriers, folded plate sound barriers, and micro-arc sound barriers are widely used in road and bridge engineering. Sound barriers are aesthetically pleasing, well-made, easy to transport and install, low in cost, and have a long service life. They are particularly suitable for noise reduction measures on elevated highways, urban light rail, and subways, making them the ideal sound insulation and noise reduction facilities for modern cities. For some split-span bridges, the side span beams of a single span cannot withstand the lateral forces exerted by the sound barrier. Therefore, it is necessary to design a sound barrier installation structure and method for double-span bridges to solve this problem. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention aims to provide a double-span bridge sound barrier installation structure and method. By fixing base plate assemblies on adjacent side beams of the double-span bridge and base assemblies on the base plate assemblies, the columns are fixed together, enabling the double-span bridge to jointly bear the lateral force brought by the sound barrier.

[0005] To achieve the above objectives, the present invention provides a double-span bridge sound barrier installation structure, comprising:

[0006] Two base plate assemblies are fixed to the adjacent side beams of the two-span bridge, respectively;

[0007] Two base assemblies are respectively fixed on the corresponding base plate assembly. The two base assemblies are spaced apart by a preset distance to form a mounting groove. Each of the two base assemblies is provided with a fastening part, which is located on opposite sides of the mounting groove.

[0008] The column is adapted to be inserted into the mounting slot, and the fasteners are respectively adapted to be connected to the corresponding fastening parts, so that the column is fixedly connected to the two base components, and the end of the column away from the base component is used to connect to the sound shield.

[0009] In some embodiments, the base plate assembly includes a base plate, a plurality of anchor bars and a plurality of first bolt pairs. The base plate is provided with a plurality of anchor bar holes arranged at intervals. The plurality of anchor bars pass through the corresponding anchor bar holes and are fixed to the side beam. The plurality of first bolt pairs are adapted to and connected to the corresponding anchor bars to fix the base plate to the side beam.

[0010] In some embodiments, a plurality of the anchor holes are arranged in two rows or at least three columns at intervals. The anchor is a galvanized steel chemical bolt. The first bolt pair includes a first washer and a first nut. The first washer is adapted to be installed on the anchor, and the first nut is threadedly connected to the anchor.

[0011] In some embodiments, a pad is provided between the base plate and the side beam, the pad being used to adjust the two base plates to the same plane.

[0012] In some embodiments, the base assembly includes a base and a side plate, the base is fixed to the bottom plate, the side plate is fixed to the side of the base, the side plates of two base assemblies are arranged adjacent to each other, and the fastening part is provided on the side plate.

[0013] In some embodiments, the base is an H-beam, and the bottom of the H-beam is provided with a plurality of mounting holes. The positions of the mounting holes correspond to the positions of the anchor holes, so that the anchors pass through the anchor holes and the mounting holes are adapted to connect with the first bolt pair to fix the base to the bottom plate.

[0014] Alternatively, the base is a steel component, the bottom plate is a steel component, and the base is welded and fixed to the bottom plate.

[0015] In some embodiments, the fastening part includes a plurality of fastening holes, which are arranged in two rows or at least two columns at intervals.

[0016] The fastener includes several second bolt pairs, each bolt pair including a fastening bolt, a second washer, and a second nut. The fastening bolt passes through a through hole in the column, and the fastening hole is adapted to connect with the second washer and the second nut, thereby fixing the column to the side plate.

[0017] In some embodiments, the fastening hole is a waist hole, and the length direction of the waist hole is parallel to the length direction of the column.

[0018] According to another aspect of the present invention, the present invention further provides a method for using a double-span bridge sound barrier installation structure as described in any one of the above, comprising the steps of:

[0019] The two base plate assemblies are respectively fixed to the adjacent side beams of the double-span bridge;

[0020] Two base components are fixed to their respective base plate components, with a preset distance between the two base components.

[0021] The column adapter is inserted between the two base components, and the fasteners are connected to the corresponding fastening parts respectively, so that the column is fixedly connected to the two base components.

[0022] In some embodiments, fixing the two base plate assemblies to adjacent side beams of the double-span bridge specifically includes the following steps:

[0023] A pad layer is set on the side beam using grout, so that the side beams on both sides are at the same elevation. Holes are drilled at the corresponding positions of the anchor holes on the base plate, and the anchors are fixed in the corresponding holes. The anchor holes on the base plate are fitted onto the corresponding anchors, and the first bolt pair is used to connect with the corresponding anchors, thereby fixing the base plate assembly to the side beam.

[0024] Compared with the prior art, the double-span bridge sound barrier installation structure and method provided by the present invention have the following beneficial effects:

[0025] 1. The double-span bridge sound barrier installation structure provided by the present invention fixes the base plate assembly on the adjacent side beams of the double-span bridge respectively, and then fixes the base assembly on the base plate assembly to fix the column together, so that the double-span bridge can jointly bear the lateral force brought by the sound barrier. Its structure is simple and easy to install.

[0026] 2. The double-span bridge sound barrier installation structure provided by this invention addresses the issue that, during the use of a split-span bridge, vehicle traffic may cause asynchronous deflection of the left and right bridge beams, which could damage the sound barrier and affect driving safety. By setting the fastening holes of the fixed columns as waist holes, when the deformation of the left and right beams is inconsistent, stress concentration can be eliminated by the bolts sliding up and down in the waist holes, thereby maintaining the stability of the sound barrier. Attached Figure Description

[0027] The preferred embodiments will now be described in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of the present invention.

[0028] Figure 1 This is a schematic diagram of the installation structure of a double-span bridge sound barrier according to a preferred embodiment of the present invention;

[0029] Figure 2 This is a top view of a preferred embodiment of the double-span bridge sound barrier installation structure of the present invention;

[0030] Figure 3This is a front view of a preferred embodiment of the double-span bridge sound barrier installation structure of the present invention;

[0031] Figure 4 This is the invention Figure 1 Sectional view of 1-1;

[0032] Figure 5 This is the invention Figure 1 Sectional view of 2-2;

[0033] Figure 6 This is the invention Figure 1 Sectional view of 3-3;

[0034] Figure 7 This is a cross-sectional view of the column according to a preferred embodiment of the present invention.

[0035] Explanation of icon numbers:

[0036] The base plate assembly 1, base plate 11, anchor hole 111, anchor 12, first bolt pair 13, base assembly 2, base 21, mounting hole 211, side plate 22, fastening hole 221, second bolt pair 23, reinforcing rib 24, column 3, vertical plate 31, connecting plate 32, and side beam 4. Detailed Implementation

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0038] To keep the drawings concise, each figure only schematically shows the parts relevant to the invention, and these do not represent the actual structure of the product. Furthermore, to facilitate understanding, in some figures, only one of components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0039] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0040] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] In one embodiment, refer to the appendix to the specification. Figures 1 to 7 The present invention provides a double-span bridge sound barrier installation structure, comprising: two base plate assemblies 1, two base assemblies 2, and columns 3. The two base plate assemblies 1 are respectively fixed to adjacent side beams 4 of the double-span bridge. The two base assemblies 2 are respectively fixed to their corresponding base plate assemblies 1, and the two base assemblies 2 are spaced at a predetermined distance to form an installation groove. Each base assembly 2 is provided with a fastening part, which is located on opposite sides of the installation groove. The columns 3 are adapted to be inserted into the installation grooves, and the fasteners are adapted to be connected to the corresponding fastening parts, so that the columns 3 are fixedly connected to the two base assemblies 2. The end of the column 3 away from the base assemblies 2 is used to connect to the sound barrier body.

[0043] In this embodiment, the columns 3 are fixed together by fixing the base plate assembly 1 on the adjacent side beams 4 of the double-span bridge, and then fixing the base assembly 2 on the base plate assembly 1, so that the double-span bridge can jointly bear the lateral force brought by the sound barrier. The structure is simple and the installation is convenient.

[0044] In one embodiment, refer to the appendix to the specification. Figures 1 to 3 The base plate assembly 1 includes a base plate 11, a plurality of anchor bars 12 and a plurality of first bolt pairs 13. The base plate 11 is provided with a plurality of anchor bar holes 111 arranged at intervals. The plurality of anchor bars 12 pass through the corresponding anchor bar holes 111 and are fixed to the side beam 4. The plurality of first bolt pairs 13 are adapted to and connected to the corresponding anchor bars 12 to fix the base plate 11 to the side beam 4.

[0045] Among them, several anchor holes 111 are arranged in two rows and at least three columns at intervals. The anchor 12 is a galvanized steel chemical bolt. The first bolt pair 13 includes a first washer and a first nut. The first washer is adapted to be installed on the anchor 12, and the first nut is threadedly connected to the anchor 12.

[0046] Furthermore, a cushion layer is provided between the base plate 11 and the side beam 4. The cushion layer is used to adjust the two base plates 11 to the same plane. That is, the two base plates 11 should be at the same elevation before construction. If there is a height difference, a cushion layer can be formed by bedding grout to fill it. The thickness of the bedding grout layer is h.

[0047] Specifically, the base plate 11 is a fixed-shape steel plate made of Q345C steel, and its thickness and dimensions can be set according to actual needs. For example, the dimensions of the base plate 11 are 430mm × 260mm × 20mm. Eight anchoring holes 111 are provided on the base plate 11, with a diameter of 24mm. The spacing between two vertically adjacent anchoring holes 111 is 110mm, and the spacing between two horizontally adjacent anchoring holes 111 is 120mm. The anchoring bars 12 are eight RM 20*(620+h) 5.8 grade galvanized steel chemical bolts. The drilled holes on the side beam 4 have a diameter of 24mm and a drilling depth of (530+h)mm. The tensile strength of each anchoring bar 12 is not less than 46.1KN. The specifications of the first washer and the first nut are compatible with the anchoring bars 12, and the material of the nut and washer is Q345C.

[0048] It should be noted that the specific structure and dimensions of the substrate assembly 1 are described in accordance with the specification. In actual use, they can be modified according to actual needs. Any structure or device that can fix the base assembly 2 to the side beam 4 is acceptable. This is only for better illustrating the present invention and should not be construed as a limitation of the present invention.

[0049] In one embodiment, refer to the appendix to the specification. Figures 1 to 6 The base assembly 2 includes a base 21 and a side plate 22. The base 21 is fixed to the bottom plate 11, and the side plate 22 is fixed to the side of the base 21. The side plates 22 of the two base assemblies 2 are arranged adjacent to each other, and the fasteners are provided on the side plates 22.

[0050] The base 21 is an H-beam with several mounting holes 211 at its bottom. These mounting holes 211 correspond to the positions of the rebar holes 111, allowing the rebars 12 to pass through the holes 111 and 211 and connect with the first bolt assembly 13. Each base 21 has four mounting holes 211 to fix it to the base plate 11. Alternatively, both the base 21 and the base plate 11 can be steel components, welded together to achieve a fixed connection between the base assembly 2 and the base plate 11. The side plate 22 is a steel plate, welded to the end of the H-beam. Triangular reinforcing ribs are used at the connection between the steel plate and the H-beam for reinforcement. For example, the H-beam dimensions are 200mm × 422.5mm × 200mm, and the reinforcing rib steel plate dimensions are 200mm × 100mm × 12mm.

[0051] The fastening part includes a plurality of fastening holes 221, which are arranged in two rows or at least two columns with intervals. The fastener includes a plurality of second bolt sets 23, each of which includes a fastening bolt, a second washer, and a second nut. The fastening bolt passes through the through hole 221 of the column 3 and is adapted to connect with the second washer and the second nut, thereby fixing the column 3 to the side plate 22.

[0052] Specifically, the side plate 22 is a fixed-shape steel plate made of Q345C, and its thickness and dimensions can be set according to actual needs. For example, the dimensions of both side plates 22 are 420mm × 200mm × 20mm. The fastening holes 221 are provided with six round holes, the diameter of which is M24 (8.8 grade). The spacing between two vertically adjacent fastening holes 221 is 160mm, and the spacing between two horizontally adjacent rebar holes 111 is 110mm. The second bolt pair 23 can be a combination of ordinary bolts, with specifications of M24 × 800, using Class A bolts with a performance grade of 8.8.

[0053] Furthermore, the fastening holes 221 are slotted holes, with their length direction parallel to the length direction of the column 3. For example, if both side plates 22 are 520mm × 200mm × 20mm in size, six fastening holes 221 are provided. The fastening holes 221 are M24 (8.8 grade) sliding grooves, with a sliding groove size of 100mm × 25mm. Alternatively, one side plate can be 420mm × 200mm × 20mm in size, with six round holes 221. The diameter of the fastening holes 221 is M24 (8.8 grade), the distance between two vertically adjacent fastening holes 221 is 160mm, and the distance between two horizontally adjacent anchoring holes 111 is 110mm. The other side plate 22 has dimensions of 520mm×200mm×20mm and six fastening holes 221. The fastening holes 221 are M24 (8.8 grade) sliding grooves with dimensions of 100mm×25mm.

[0054] Further, refer to the attached instruction manual. Figure 7 The support column 3 is an I-beam, comprising a connecting plate 32 and two vertical plates 31 arranged in parallel. Both ends of the connecting plate 32 are fixedly connected to the vertical plates 31. The function of the support column 3 is to support and fix the sound barrier. The dimensions and height of the support column 3 are set according to actual needs. For example, the cross-sectional dimensions of the support column 3 are 200mm × 150mm × 8mm × 12mm, and the vertical dimensions are 200mm × 150mm × H, where H is determined according to the height of the sound barrier. Several through holes are provided at the bottom of the support column 3, corresponding to the fastening holes 221. There are six through holes, each with a diameter of 25mm.

[0055] In this embodiment, since the deflection deformation of the left and right bridge beams may be asynchronous during the use of the split bridge, the sound barrier will be damaged and thus affect the safety of driving. By setting the fastening hole 221 of the fixed column 3 as a waist hole, when the deformation of the left and right beams is inconsistent, the stress concentration can be eliminated by the bolt sliding up and down in the waist hole, thereby maintaining the stability of the sound barrier.

[0056] According to another aspect of the invention, reference is made to the appended specification. Figures 1 to 7 The present invention further provides a method for installing a double-span bridge sound barrier structure as described in any one of the above, comprising the steps of:

[0057] The two base plate assemblies 1 are respectively fixed to the adjacent side beams 4 of the double-span bridge;

[0058] Two base components 2 are respectively fixed on the corresponding base plate components 1, with a preset distance between the two base components 2;

[0059] The column 3 is inserted between the two base components 2, and the fasteners are connected to the corresponding fastening parts respectively, so that the column 3 is fixedly connected to the two base components 2.

[0060] In this embodiment, the columns 3 are fixed together by fixing the base plate assembly 1 on the adjacent side beams 4 of the double-span bridge, and then fixing the base assembly 2 on the base plate assembly 1, so that the double-span bridge can jointly bear the lateral force brought by the sound barrier. The structure is simple and the installation is convenient.

[0061] Specifically, a pad layer is set on the side beam 4 using grout, so that the two side beams 4 are at the same elevation. Holes are drilled at the corresponding positions of the anchor holes 111 on the base plate 11, and the anchor bars 12 are fixed in the corresponding holes. The anchor holes 111 on the base plate 11 are fitted onto the corresponding anchor bars 12, and the first bolt pair 13 is used to connect with the corresponding anchor bars 12, thereby fixing the base plate assembly 1 to the side beam 4.

[0062] The base 21 is welded and fixed to the side plate 22 to form the base assembly 2. The four mounting holes 211 on the base 21 are respectively inserted into the four middle anchor bars 12, and the first bolt pair 13 is used to connect with the corresponding anchor bars 12, thereby fixing the base 21 to the base plate 11. At this time, the distance between the two side plates 22 is slightly larger than the size of the column 3.

[0063] The column 3 is fitted between the two side plates 22, and the second bolt assembly 23 is fitted and connected to the corresponding fastening holes 221 respectively, so that the column 3 is fixedly connected to the two side plates 22. When the deformation of the left and right beams is inconsistent, the stress concentration is eliminated by adjusting the second bolt assembly 23 to slide up and down in the waist hole, thereby maintaining the stability of the sound barrier.

[0064] In this embodiment, since the deflection deformation of the left and right bridge beams may be asynchronous during the use of the split bridge, the sound barrier will be damaged and thus affect the safety of driving. By setting the fastening hole 221 of the fixed column 3 as a waist hole, when the deformation of the left and right beams is inconsistent, the stress concentration can be eliminated by the bolt sliding up and down in the waist hole, thereby maintaining the stability of the sound barrier.

[0065] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0066] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A sound barrier installation structure for a double-span bridge, characterized in that, include: Two base plate assemblies are fixed to the adjacent side beams of the two-span bridge, respectively; Two base assemblies are respectively fixed on the corresponding base plate assembly. The two base assemblies are spaced apart by a preset distance to form a mounting groove. Each of the two base assemblies is provided with a fastening part, which is located on opposite sides of the mounting groove. The column is adapted to be inserted into the mounting slot, and the fasteners are respectively adapted to be connected to the corresponding fastening parts, so that the column is fixedly connected to the two base components. The end of the column away from the base components is used to connect to the sound shield. The base assembly includes a base and a side plate. The base is fixed to the bottom plate of the base plate assembly, and the side plate is fixed to the side of the base. The side plates of two base assemblies are arranged adjacent to each other. The fastening part is provided on the side plate and includes a plurality of fastening holes. The fastening holes are waist holes, and the length direction of the waist holes is parallel to the length direction of the column. The fastener includes several second bolt pairs, each bolt pair including a fastening bolt, a second washer, and a second nut. The fastening bolt passes through a through hole in the column, and the fastening hole is adapted to connect with the second washer and the second nut, thereby fixing the column to the side plate.

2. The double-span bridge sound barrier installation structure according to claim 1, characterized in that, The base plate assembly includes a base plate, a plurality of anchor bars, and a plurality of first bolt pairs. The base plate is provided with a plurality of anchor bar holes arranged at intervals. The plurality of anchor bars pass through the corresponding anchor bar holes and are fixed to the side beam. The plurality of first bolt pairs are adapted to and connected to the corresponding anchor bars to fix the base plate to the side beam.

3. The double-span bridge sound barrier installation structure according to claim 2, characterized in that, The plurality of anchor holes are arranged in two rows and at least three columns at intervals. The anchor is a galvanized steel chemical bolt. The first bolt pair includes a first washer and a first nut. The first washer is adapted to be installed on the anchor and the first nut is threadedly connected to the anchor.

4. The double-span bridge sound barrier installation structure according to claim 2, characterized in that, A padding layer is provided between the base plate and the side beam, and the padding layer is used to adjust the two base plates to the same plane.

5. The double-span bridge sound barrier installation structure according to claim 2, characterized in that, The base is an H-beam, and the bottom of the H-beam is provided with several mounting holes. The positions of the mounting holes correspond to the positions of the rebar holes, so that the rebars pass through the rebar holes and the mounting holes respectively and are adapted to the first bolt pair for connection, so as to fix the base to the bottom plate. Alternatively, the base is a steel component, the bottom plate is a steel component, and the base is welded and fixed to the bottom plate.

6. The double-span bridge sound barrier installation structure according to claim 5, characterized in that, The fastening holes are arranged in two rows or at least two columns with intervals.

7. A method for installing a double-span bridge sound barrier using the structure described in any one of claims 1-6, characterized in that, Including the following steps: A cushion layer is installed on the edge beams so that the edge beams on both sides are at the same elevation; The two base plate assemblies are respectively fixed to the adjacent side beams of the double-span bridge; Two base components are fixed to their respective base plate components, with a preset distance between the two base components. The column adapter is inserted between the two base components, and the fasteners are connected to the corresponding fastening parts respectively, so that the column is fixedly connected to the two base components.

8. The method according to claim 7, characterized in that, The process of fixing the two base plate assemblies to the adjacent side beams of the double-span bridge specifically includes the following steps: Drill holes at the corresponding positions on the side beam according to the positions of the anchor holes on the base plate, fix the anchors in the corresponding holes, fit the anchor holes on the base plate onto the corresponding anchors, and use the first bolt pair to connect with the corresponding anchors, thereby fixing the base plate assembly to the side beam.

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