A kind of green box across bridge expansion joint, bridge and application method

Abstract

The application discloses a greening box, a bridge, and an application method for spanning bridge expansion joints, relating to the field of bridge landscaping. It includes base stones placed on both sides of the same expansion joint on the bridge deck, forming a receiving space spanning the expansion joint. A greening box for holding plants is placed within this space. Green plants are planted inside the box, integrating with other green belts on the bridge deck to ensure the integrity of the greening and enhance its protective function. The top of the greening box also features an inward-facing folded surface and a folded lug. The folded surface is at the same height as the base stone, maintaining the continuity of the base stone and improving aesthetics while preventing pedestrians from falling and hitting the greening box. The folded lug provides support and protection for the green plants inside the box, preventing them from tipping over in extreme weather and further improving the neatness of the greening. A damage-resistant pad is placed at the contact point between the greening box and the base stone to prevent wear and tear on the bottom of the greening box when the base stone deforms and shifts with the bridge deck.

Description

Technical Field

[0001] This invention relates to the field of bridge landscaping and greening, specifically to a greening box for bridge deck expansion joints, a bridge, and an application method. Background Technology

[0002] In bridge design, expansion joints are an important structural element. Their function is to adjust the expansion and contraction of the bridge deck under temperature changes, concrete shrinkage, and load, preventing the bridge from being subjected to excessive tensile forces. Properly placed expansion joints on the bridge deck can extend its service life and facilitate later maintenance. However, with the increasing demand for aesthetics, the median and side strips on existing bridge decks often require the installation of green belts along the bridge. This not only serves an aesthetic purpose but also effectively separates the two-way traffic lanes from the non-motorized vehicle lanes. Therefore, it is necessary to consider the greening work at the bridge deck expansion joints. Commonly used methods include: 1. Not installing expansion joints on the bridge deck; 2. Discontinuous green belts, with the green belts directly interrupted at the expansion joints; 3. Using flower boxes directly laid on top of the expansion joints.

[0003] Method 1 is only applicable to small-span bridges with seamless expansion joints and modular expansion joints, where the required expansion amount is small. However, it is not suitable for comb-type expansion joints with large expansion amounts and wide expansion joints. In such cases, the only solution is to directly disconnect the green belt, which would compromise the continuity of the green belt and result in a poor landscape effect. If flower boxes are directly laid on the expansion joint, the bottom of the flower box would press directly against the bridge deck expansion joint, which would hinder the normal expansion and contraction of the expansion joint and affect its service life. When the bridge deck deforms, it would also directly rub against the bottom of the flower box, accelerating the wear and tear of the flower box and causing a waste of resources to some extent. Summary of the Invention

[0004] This application provides a greening box for bridge deck expansion joints, a bridge, and an application method, which can solve the technical problem in the prior art that the expansion joint of the comb plate type expansion joint, which has a large expansion amount and a large expansion joint width, cannot be used to lay green belts along the bridge.

[0005] In a first aspect, embodiments of this application provide a greening box for an expansion joint across a bridge deck, comprising: The base portion includes two opposing base stones for forming a receiving space across the bridge deck expansion joint along the bridge direction. The base stone includes a raised stone and an isolation stone located on one side of the raised stone. The packing section includes a plant box placed within the receiving space, the plant box being located on the raised stone, the plant box including a bottom steel plate and side steel plates vertically arranged around the bottom steel plate, the top of the side steel plates extending toward the center of the plant box to form a folded surface, and the front end of the folded surface extending downward to form a folded ear.

[0006] In conjunction with the first aspect, in one embodiment, a damage-resistant pad is provided at the contact point between the plant box and the raised stone.

[0007] Secondly, embodiments of this application provide a bridge, which includes: At least one of the aforementioned greening boxes is installed on each expansion joint of the bridge, and the two base stones of the base of each greening box are respectively set on both sides of the same expansion joint along the bridge direction.

[0008] Thirdly, embodiments of this application provide a method for applying green boxes to expansion joints of bridge decks, which includes the following steps: Based on the width of the bridge deck expansion joint, select one bottom steel plate and four side steel plates; A folded surface is formed on the top of the side steel plate, and the free end of the folded surface is extended downward to form a folded ear; The bottom steel plate and the side steel plate are welded in sequence to form a green plant box with the folded side facing inward. Prefabricated base stones for raising the planters to span the bridge deck expansion joints; A base stone is set on each side of the bridge expansion joint along the direction of the bridge, and a plant box is placed on the base stone.

[0009] In conjunction with the third aspect, in one embodiment, the long side of the bottom steel plate is longer than the width of the bridge deck expansion joint.

[0010] In one embodiment, the side steel plate includes two longitudinal steel plates and two transverse steel plates; The specific steps include forming a folded surface on the top of the side steel plate and extending the free end of the folded surface downwards to form a folded ear: Cut a notch on both sides of the top of the steel plate of the bridge; The top of the longitudinal and transverse steel plates is folded back for the first time to form a folded surface; Fold the front end of the folded surface vertically downwards towards the plane containing the folded surface to form a folded ear.

[0011] In one implementation, the folding angles of the first and second folds are both 90 degrees.

[0012] In one embodiment, the steps of sequentially welding the bottom steel plate and the side steel plate to form a plant box with the folded-in side facing inward include: With the folded side of each of the four side steel plates facing inward, weld adjacent two side steel plates in sequence. Weld the bottom steel plate to form a planter box; Anti-corrosion material is sprayed on both the outer and inner surfaces of the plant box.

[0013] In one embodiment, a base stone is set on each side of the bridge deck expansion joint along the bridge direction, and a plant box is placed on the base stone. The specific steps include: Place the raised stone in the two base stones close to the bridge deck expansion joint; Place a damage-prevention pad on each of the raised stones; Place the plant box on the damage protection mat.

[0014] In one embodiment, the isolation stone and the plant box are separated by gaps on both sides along the bridge direction.

[0015] The beneficial effects of the technical solutions provided in this application include: By placing base stones on both sides of the same expansion joint on the bridge deck, a receiving space can be formed. A planter box for supporting greenery can be placed within this space, allowing the planter box to span across the expansion joint without compressing it. This makes the green belt on the bridge deck more continuous, improving its aesthetics, and does not affect the normal expansion and contraction of the bridge deck, thus protecting it. Furthermore, the folded surface and folded lugs on the top of the planter box not only maintain the continuity of the base stones and enhance the aesthetics, but also reduce safety hazards, preventing pedestrians from falling and hitting the top of the planter box. The folded lugs, facing the expansion joint, support and protect the greenery inside the box, preventing it from tipping over in extreme weather, further ensuring the aesthetics of the bridge deck greenery. Additionally, the planter box and base stones can prevent some debris and stones from entering the expansion joint, thus protecting the bridge to some extent and extending its service life. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a greening box structure for an expansion joint across a bridge deck, provided by an embodiment of the present invention. Figure 2 A schematic diagram of a bridge structure provided in an embodiment of the present invention; Figure 3 A schematic diagram illustrating the application steps of a greening box across a bridge expansion joint, provided in an embodiment of the present invention; Figure 4This is a schematic diagram of the structure of the longitudinal and transverse steel plates in the first embodiment of a greening box application method for an expansion joint across a bridge deck provided by an embodiment of the present invention. Figure 5 A top view of the first embodiment of the application method of the greening box in the expansion joint of the bridge deck provided in this invention, which includes the longitudinal and transverse steel plates of the bridge deck steel plate. Figure 6 This is a schematic diagram of the second embodiment of the application method of the greening box in the expansion joint of the bridge deck provided by the present invention, which includes the longitudinal steel plate and the transverse steel plate. Figure 7 This is a top view of the second embodiment of the application method of the greening box for the expansion joint of the bridge deck provided in this invention, which includes the longitudinal and transverse steel plates.

[0018] In the diagram: 1. Base stone; 101. Elevating stone; 102. Isolation stone; 2. Green plant box; 201. Bottom steel plate; 202. Side steel plate; 2021. Cross bridge steel plate; 2022. Straight bridge steel plate; 2023. Notch; 203. Folded surface; 204. Folded lug; 3. Damage protection pad; 4. Bridge deck expansion joint; 501. Box body steel plate; 502. Folded surface steel plate; 503. Folded lug steel plate. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0020] This application provides a greening box, bridge, and application method for a bridge deck expansion joint. It can solve the technical problem in the prior art that green belts cannot be laid along the bridge at the comb-type expansion joint bridge with large expansion and contraction and large expansion joint width. It includes a base part and a box part. The base part is arranged on both sides of the bridge deck expansion joint 4 along the bridge direction. The box part is provided on the base part to lift the box part off the surface of the bridge deck expansion joint 4 and span the bridge deck expansion joint 4 to prevent the box part from pressing the bridge deck expansion joint 4 and affecting its normal expansion and contraction. The box part is mainly used to load greening.

[0021] Specifically, Figure 1This is a schematic diagram of a greening box structure for a bridge expansion joint provided in an embodiment of the present invention. It includes a base part, each base part including two base stones 1. The two base stones 1 are symmetrically arranged on both sides of the same expansion joint on the bridge surface along the direction of the bridge, forming a receiving space. The box part includes a greening box 2, which is placed in the receiving space. Further, the base stone 1 includes a raised stone 101 for setting on the bridge surface and an isolation stone 102 fixedly set on one side of the raised stone 101. The raised stone 101 and the isolation stone 102 are fixed as one piece, so that the base stone 1 is L-shaped as a whole. The raised stone 101 of the two base stones 1 is set close to the bridge expansion joint 4 to form a receiving space spanning the bridge expansion joint 4. The greening box 2 is placed on the raised stone 101.

[0022] Furthermore, the plant box 2 is a box with an open top. Since the plant box 2 is mostly used on outdoor bridge surfaces, its material needs to be durable and wear-resistant. In this invention, the plant box 2 is made of steel, and it is a square steel box welded from a bottom steel plate 201 and four side steel plates 202. Both the inside and outside of the plant box 2 require anti-corrosion treatment, such as spraying an anti-corrosion layer. At the same time, the plant box in this invention is not only used to separate two-way lanes in the middle of the bridge surface, but also commonly used at the separation point between motor vehicle and non-motor vehicle lanes. There are many non-motor vehicles and pedestrians at this location, and the top opening of the plant box 2 is relatively sharp, posing a certain safety hazard to passing pedestrians. Therefore, to prevent non-motorized vehicles from being placed in the middle of the bridge, the plant box 2 is designed with a sharp top opening. When a pedestrian falls on the side of the lane and touches the opening at the top of the plant box 2, they may be injured. The top of the plant box 2 has a folded surface 203 extending towards the center of the plant box 2. At the front end of the folded surface 203, that is, at the end of the folded surface 203 near the center of the plant box 2, there is a folded ear 204 extending towards the bottom of the plant box 2. The folded ear 204 can provide some support and protection for the plants placed in the plant box 2, preventing the plants from tipping over in extreme weather. It can also prevent the front end of the folded surface 203 from being too sharp and damaging the plants on the outside. When it is necessary to maintain the expansion joint, the plant box 2 needs to be moved first. The folded ear 204 and the folded surface 203 can also make it convenient for staff to move the plant box with leverage.

[0023] Furthermore, when the plant box 2 is placed on the raised stone 101, the folded surface 203 and the top surface of the isolation stone 102 are on the same horizontal plane to eliminate the height difference between the folded surface 203 and the isolation stone 102, extend the top area of ​​the isolation stone 102, maintain aesthetics, and reduce safety hazards. At the same time, in this application, the width of the folded surface 203 can be equal to the width of the top of the isolation stone 102 for aesthetic effect, or it can be set according to the size of the plant box 2 and actual use needs. There are no specific restrictions in this application.

[0024] Since the bridge deck may undergo slight expansion and contraction deformation due to various factors such as temperature, humidity, and stress, and the displacement directions of the bridge deck on both sides of the bridge deck expansion joint 4 are opposite, the base stones 1 set on both sides of the bridge deck expansion joint 4 will also slightly shift towards the plant box 2 as the bridge deck deforms. Therefore, in order to reduce the friction between the base stones 1 and the bottom of the plant box 2 when the bridge deck shifts, which may cause damage to the bottom of the plant box 2, a damage prevention pad 3 is provided at the contact point between the plant box 2 and the raised stone 101. The damage prevention pad 3 is made of a flexible material, but it needs to have a certain degree of hardness to support the plant box 2 and isolate the bottom of the plant box 2 from the top of the raised stone 101. Therefore, in one embodiment of the present invention, the damage prevention pad 3 is made of rubber, and the thickness of the damage prevention pad 3 is 1-2 cm. Furthermore, the damage prevention pad 3 can be set separately and placed directly on the raised stone 101 when placing the plant box 2, or it can be fixedly set on the top of the raised stone 101 or the bottom of the plant box 2. There are no specific limitations in this application.

[0025] Furthermore, the side steel plate 202 of the greening box 2 includes two longitudinal steel plates 2022 and two transverse steel plates 2021. The transverse steel plates 2021 are perpendicular to the deformation direction of the bridge deck and the displacement direction of the base stone 1. Therefore, in order to avoid damage to the greening box 2 when the bridge deck expands and contracts, a certain gap needs to be left between the transverse steel plates 2021 and the isolation stone 102. The two do not contact each other to prevent the base stone 1 from getting too close to the greening box 2 when it moves towards the greening box 2 with the expansion and contraction of the bridge deck, thereby putting pressure on the greening box 2 and damaging it. The size of the reserved gap needs to be determined according to the length of the bridge expansion and contraction.

[0026] When using the greening box in this application, first symmetrically set two base stones 1 to both sides of the same bridge deck expansion joint 4, and set the thickness of the anti-damage pad 3 according to the actual usage requirements. Then place the greening box 2 in the receiving space formed by the base stones 1 on both sides of the same expansion joint, ensuring that the folded surface 203 at the top of the greening box 2 is on the same horizontal plane as the top surface of the isolation stone 102, and check the spacing between the two isolation stones 102 and the cross bridge steel plates 2021 on both sides of the greening box 2. Then plant greenery in the greening box 2 and form a whole with the other standard sections of green belt on the bridge deck. This not only improves the overall greening effect, but also allows the greening box 2 to be moved directly when the bridge deck expansion joint 4 needs to be inspected and maintained. This is convenient and quick, and will not damage the bridge deck expansion joint 4.

[0027] This application also provides a bridge including four greening boxes installed at the bridge deck expansion joints. These greening boxes integrate with the standard sections of green belts on the bridge deck, thereby enhancing the overall continuity of the bridge deck's greening. Specifically, Figure 2This is a schematic diagram of a bridge structure provided by an embodiment of the present invention. At least one set of greening boxes is provided on each expansion joint of the bridge deck. The two base stones 1 in the greening boxes are symmetrically arranged on both sides of the same bridge deck expansion joint 4 along the direction of the bridge. The raised stone 101 in the base stone 1 is set close to the bridge deck expansion joint 4, and the isolation stones 102 in the two base stones 1 are far apart from each other to form a receiving space for placing the greening box 2. The greening box 2 is a steel box with an open top. It is treated with anti-corrosion both inside and out to extend the service life of the greening box 2. Green plants are planted in the greening box 2, forming an integral whole with the greening of other standard sections of the bridge deck.

[0028] Once installed, the greening box runs along the bridge's longitudinal direction and spans the bridge deck expansion joint 4. It will not compress the bridge deck expansion joint 4, thus avoiding any impact on the normal deformation of the bridge deck. At the same time, when the greening box is placed above the bridge deck expansion joint 4, it can also prevent some garbage and stones from entering the bridge deck expansion joint 4, which can also play a protective role for the bridge to a certain extent and extend the overall service life of the bridge.

[0029] This application also provides a method for applying greening boxes to expansion joints of bridge decks, for use in applying the aforementioned greening boxes to expansion joints of bridge decks. Figure 3 This invention provides a schematic diagram illustrating the application steps of a greening box for a bridge expansion joint, specifically including the following steps: S1: Based on the width of the bridge deck expansion joint 4, select one bottom steel plate 201 and four side steel plates 202; When using the greening box in this application, the greening box 2 needs to be placed along the bridge and span across the bridge expansion joint 4, that is, the greening box and the bridge expansion joint 4 are set perpendicularly. Therefore, the length of the greening box 2 is longer than the width of the bridge expansion joint 4, that is, the length of the bottom steel plate 201 is longer than the width of the bridge expansion joint 4.

[0030] S2: A folded surface 203 is formed on the top of the side steel plate 202, and the free end of the folded surface 203 is extended downward to form a folded ear 204; The folded surface 203 is a flat surface formed by bending the top of the side steel plate 202. The folded lug 204 is formed by extending a certain length from the free end of the folded surface 203 toward the bridge deck expansion joint 4. The specific formation steps include: S201: Cut a notch 2023 on both sides of the top of the steel plate 2022; All four side steel plates 202 form folded surfaces 203. When welding them into a box, the folded surfaces 203 on the four side steel plates 202 will affect each other. Therefore, before forming the folded surfaces 203, the four side steel plates 202 need to be processed to ensure their normal welding work.

[0031] Figure 4This is a schematic diagram of the structure of the longitudinal steel plate 2022 and transverse steel plate 2021 in the first embodiment of the application method of the greening box in the expansion joint of the bridge deck provided in this invention. Figure 5 This is a top view of the first embodiment of the application method of the greening box for the expansion joint of the bridge deck provided in this invention, which is a method for applying the greening box for the expansion joint of the bridge deck. Before forming the folded surface 203, a notch 2023 needs to be cut on each of the top two sides of the longitudinal steel plate 2022, so that the longitudinal steel plate 2022 is convex to accommodate the two ends of the folded surface 203 on the two transverse steel plates 2021. The length and width of the notch 2023 are determined according to the folded surface 203 and the folded ear 204.

[0032] Furthermore, the side steel plate 202 can also be formed by fixing two square steel plates and one trapezoidal steel plate together to form a whole. Specifically, Figure 6 This is a schematic diagram of the second embodiment of the application method of the greening box in the expansion joint of a bridge deck provided by an embodiment of the present invention, showing the longitudinal steel plate 2022 and the transverse steel plate 2021. Figure 7 This is a top view of the second embodiment of the application method of the greening box for the expansion joint of a bridge deck provided by the present invention, which includes the longitudinal steel plate 2022 and the transverse steel plate 2021. In the second embodiment, the side steel plate 202 includes a box-shaped steel plate 501, a folded surface steel plate 502 perpendicular to the box-shaped steel plate 501, and a folded lug steel plate 503 perpendicularly disposed below the folded surface steel plate 502. The folded surface steel plate 502 is trapezoidal, and its base length is equal to the long side of the box-shaped steel plate 501. After vertical welding, it directly forms the folded surface 203. Similarly, the folded lug... Steel plate 503 can directly form folded ears 204. When the four side steel plates 202 are welded into a box, the oblique sides of two adjacent folded steel plates 502 are matched and overlapped. The long side of the folded ear steel plate 503 is equal to the top side of the folded steel plate 502. It is vertically set below the folded steel plate 502, that is, parallel to the box body steel plate 501, forming folded ears 204. Furthermore, the box body steel plate 501, the folded steel plate 502 and the folded ear steel plate 503 can be three steel plates welded according to the set angle, or they can be prefabricated as a whole and then folded back.

[0033] It should be noted that when the folded surface 203 and the folded ear 204 are formed by folding, the folded area is relatively smooth and does not require special treatment. However, when the folded surface 203 and the folded ear 204 are welded together, the welded area needs to be rounded and the sharp welded area needs to be ground to avoid causing safety hazards to pedestrians.

[0034] S202: The top of the longitudinal bridge steel plate 2022 and the transverse bridge steel plate 2021 are folded back for the first time to form the folded surface 203; S203: Fold the front end of the folded surface 203 towards the bottom of the folded surface 203 to form a folded ear. In this step, in order to maintain the integrity and aesthetics of the side steel plate 202, the folding angle of the folded surface 203 and the folded ear is 90 degrees.

[0035] S3: Sequentially weld the bottom steel plate 201 and the side steel plate 202 to form a green plant box 2 with the folded surface 203 facing inward. The specific steps include: S301: With the side of the four side steel plates 202 with the folded surface 203 facing inward, weld two adjacent side steel plates 202 in sequence. Furthermore, the steel plate is made of Q235B steel with a thickness of 10 mm and a yield strength of ≥235 MPa. Based on the thickness of the steel plate and its composition, the four side steel plates 202 are connected by a single-sided V-shaped weld with a weld width of 8 mm.

[0036] S302: Weld the bottom steel plate 201 to form the green plant box 2. Further, the side steel plate 202 and the bottom steel plate 201 are welded together on all four sides.

[0037] S303: Both the outer and inner surfaces of the plant box 2 are coated with anti-corrosion material; The green box in this application is intended for outdoor use. Rain and humid weather may affect the steel material. Therefore, in order to extend its service life, after the green box 2 is welded, it is necessary to carry out anti-corrosion and anti-rust treatment. Anti-corrosion treatment should be carried out on both the inside and outside. The paint technology requirements should meet the relevant technical requirements. The anti-corrosion coating system should have an anti-corrosion life of not less than 20 years after one application. Furthermore, in order to improve the overall aesthetic effect and reduce color difference, the outside of the green box 2 can also be colored to match the color of the base stone 1.

[0038] S4: Prefabricated base stone for raising the green plant box 2 to cross the bridge deck expansion joint 4; The base stone 1 is set on both sides of the same bridge deck expansion joint 4 to raise the green plant box 2 so that the green plant box 2 spans across the bridge deck expansion joint 4. The base stone 1 includes a raising stone 101 and an isolation stone 102 is fixedly set on one side of the raising stone 101. The two are set vertically and fixedly connected as one piece. The base stone 1 needs a certain weight and a certain hardness to maintain its own stability and limit the green plant box when the bridge deck deforms. At the same time, it can also prevent damage when it is scratched by passing vehicles. Therefore, in one embodiment of the present invention, the base stone 1 can be cast into a whole by concrete and then granite is attached to its outside, or it can be made directly by granite. There is no specific limitation in this application.

[0039] S5: A base stone 1 is installed on each side of the bridge expansion joint 4 along the bridge direction, and the green plant box 2 is placed on the base stone 1. The specific steps include: S501: Place the raised stone 101 in the two base stones 1 close to the bridge deck expansion joint 4; S502: Place a damage prevention pad 3 on each of the raised stones 101; S503: Place the plant box 2 on the damage protection pad 3.

[0040] Since the base stone 1 will slightly shift towards the plant box 2 due to the deformation of the bridge deck, in order to reduce the friction between the base stone 1 and the bottom of the plant box 2 and cause damage to the bottom of the plant box 2, a damage prevention pad 3 needs to be set at the contact point between the plant box 2 and the raised stone 101 before placing the plant box 2. In this application, the damage prevention pad 3 is made of rubber, and its hardness is sufficient to support the plant box 2 and prevent the plant box 2 from directly contacting the raised stone 101. If the thickness of the damage prevention pad 3 is too thick, it may cause the plant box 2 to be unstable. Therefore, the thickness of the damage prevention pad 3 is 1-2 cm. The damage prevention pad 3 can be placed alone or fixedly set on the top of the raised stone 101 or the bottom of the plant box 2. There are no specific restrictions in this application.

[0041] Furthermore, to avoid damage to the greening box 2 caused by bridge deck deformation, a certain gap needs to be left between the greening box 2 and the isolation stone 102 for the displacement of the base stone 1. The two do not contact each other to prevent the base stones 1 on both sides of the greening box 2 from being squeezed and damaged when they move towards the greening box 2 as the bridge deck expands and contracts, thereby reducing its service life and increasing maintenance and replacement costs. At the same time, the size of the reserved gap needs to be determined according to the length of bridge expansion and contraction and is proportional to the length of bridge expansion and contraction.

[0042] When using the greening box in this application, the greening box 2 needs to be placed on the raised stone 101. To prevent a height difference between the greening box 2 and the base stone 1, and to prevent the sharp corners from causing safety hazards to pedestrians on the bridge surface, after the damage prevention pad 3 and the greening box 2 are placed, it is necessary to ensure that the folded surface 203 at the top of the greening box 2 is on the same horizontal line as the top of the isolation stone 102. That is, when the greening box 2 is placed on the raised stone 101, it needs to be at the same height as the base stone 1. The transverse width of the greening box 2 is consistent with the transverse width of the base stone 1 to maintain aesthetics and the continuity of the base stone 1. In one embodiment of this application, the overall height and transverse width of the base stone 1 are preferably 15 cm, of which the height of the raised stone 101 is 5 cm. This data is only a conventional size, and the actual size depends on the application scenario and application requirements.

[0043] When using the greening boxes described in this application, two base stones 1 are required in the same set of greening boxes. First, the two base stones 1 are installed on both sides of the same bridge deck expansion joint 4. To ensure overall aesthetics and stability, the two base stones 1 should be symmetrically arranged along the bridge deck expansion joint 4. Then, damage prevention pads 3 and greening boxes 2 are placed sequentially on the two raised stones 101. It is ensured that the greening box 2 is placed on the damage prevention pad 3 at the same height as the base stone 1, while also ensuring that there is a certain gap between the greening box 2 and the isolation stone 102. Finally, greenery is planted in the greening box 2 to integrate it with the standard greening of other sections of the bridge deck, ensuring the continuity of the greening. During the entire installation process, no drilling or other manual labor or resource consumption is required, and no damage is caused to the bridge surface or the bridge deck expansion joint 4. After installation, it will not affect the normal expansion and contraction of the bridge deck expansion joint 4, and at the same time, it will ensure the continuity of the bridge green landscape. If the bridge deck expansion joint 4 needs to be inspected or maintained in the future, the green plant box 2 can be removed directly, and then put back in place after the inspection and maintenance work is completed.

[0044] The greening box provided in this application utilizes the base stones 1 set on both sides of the bridge deck expansion joint 4 to raise the greening box 2 and make it span across the bridge deck expansion joint 4. This allows for the planting of greenery at the bridge deck expansion joint 4 without affecting the bridge deck's expansion and contraction operations. It avoids affecting the normal expansion and contraction of the bridge deck by placing greenery directly on the expansion joint 4, thus maintaining the overall continuity of the bridge deck greening and improving the overall greening effect. Simultaneously, the folded ears 204 and the folded surface 203 on the greening box 2 not only prevent pedestrians from accidentally hitting the top opening of the greening box 2 when they fall, thus avoiding safety accidents, but the folded ears 204 also provide support and protection for the greenery inside the greening box 2, preventing the greenery from tipping over in extreme weather and reducing its aesthetic appeal. Furthermore, the greening box... The flexible placement of the plant box 2 and the base stone 1 facilitates the inspection and maintenance of the bridge expansion joint 4 in the later stages. The plant box 2 can be moved directly without incurring additional maintenance costs. The folded surface 203 and the folded lug 204 can also serve as leverage points during transportation, making it easier for workers to exert force. When the plant box 2 is placed on the bridge expansion joint 4, it can also prevent large pieces of garbage or stones on the bridge surface from falling into the bridge expansion joint 4, thus playing a protective role for the bridge expansion joint 4 to a certain extent and extending the service life of the bridge. The overall structure is simple and the manufacturing cost is low. The plant box 2, which is welded from steel plates, and the base stone 1, which is poured with concrete, can adapt to the harsh outdoor environment and have a long service life, which also reduces the cost of later maintenance and replacement.

[0045] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0046] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A greening box for an expansion joint across a bridge deck, characterized in that, include: The base portion includes two opposing base stones (1) for forming a receiving space across the bridge deck expansion joint (4) along the bridge direction. The base stone (1) includes a raised stone (101) and an isolation stone (102) located on one side of the raised stone (101). The packing section includes a plant box (2) placed in the receiving space, and the plant box (2) is located on the raised stone (101). The plant box (2) includes a bottom steel plate (201) and side steel plates (202) vertically arranged around the bottom steel plate (201). The top of the side steel plate (202) extends toward the middle of the plant box (2) to form a folded surface (203), and the front end of the folded surface (203) extends downward to form a folded ear (204).

2. The green box across the bridge expansion joint as claimed in claim 1, wherein, A damage-resistant pad (3) is provided at the contact point between the plant box (2) and the raised stone (101).

3. A bridge, characterized in that At least one greening box as described in claim 1 or 2 is provided on each expansion joint of the bridge, and the two base stones (1) of the base of each greening box are respectively provided on both sides of the same expansion joint along the bridge direction.

4. A method for applying a greening box to a bridge expansion joint, used for applying the greening box to a bridge expansion joint as described in any one of claims 1-2, characterized in that, Includes the following steps: Based on the width of the bridge deck expansion joint (4), select one bottom steel plate (201) and four side steel plates (202). A folded surface (203) is formed on the top of the side steel plate (202), and the free end of the folded surface (203) is extended downward to form a folded ear (204). The bottom steel plate (201) and the side steel plate (202) are welded in sequence to form a green plant box (2) with the folded surface (203) facing inward; Prefabricated base stone (1) for raising the green plant box (2) to cross the bridge deck expansion joint (4); A base stone (1) is set on each side of the bridge deck expansion joint (4) along the bridge direction, and a green plant box (2) is placed on the base stone (1).

5. The method of claim 4, wherein the method further comprises: providing a plurality of green boxes; and placing the plurality of green boxes on the bridge deck. The long side of the bottom steel plate (201) is longer than the width of the bridge deck expansion joint (4).

6. The application method of a greening box for a bridge expansion joint as described in claim 4, characterized in that: The side steel plate (202) includes two longitudinal steel plates (2022) and two transverse steel plates (2021); The steps of forming a folded surface (203) on the top of the side steel plate (202) and extending the free end of the folded surface (203) downward to form a folded ear (204) include: Cut a notch on both sides of the top of the Shunqiao steel plate (2022) (2023); The top of the longitudinal bridge steel plate (2022) and the transverse bridge steel plate (2021) are folded back for the first time to form a folded surface (203). The front end of the folded surface (203) is folded back a second time towards the vertically downward plane of the folded surface (203) to form a folded ear (204).

7. The method of claim 6, wherein the method further comprises: providing a plurality of green boxes; and placing the plurality of green boxes on the bridge deck. The first and second folds both have a fold angle of 90 degrees.

8. The application method of a greening box for a bridge expansion joint as described in claim 4, characterized in that, The steps of sequentially welding the bottom steel plate (201) and the side steel plate (202) to form a green plant box (2) with the folded surface (203) facing inward include: With the side of the four side steel plates (202) having the folded surface (203) facing inward, weld two adjacent side steel plates (202) in sequence. Weld the bottom steel plate (201) to form a green plant box (2); Anti-corrosion material was sprayed on both the outer and inner surfaces of the green plant box (2).

9. The application method of a greening box for a bridge expansion joint as described in claim 4, characterized in that, The bridge deck expansion joint (4) is provided with a base stone (1) on each side along the bridge direction, and the green plant box (2) is placed on the base stone (1). The specific steps include: Place the raised stone (101) in the two base stones (1) close to the bridge deck expansion joint (4); Place a damage prevention pad (3) on each of the raised stones (101); Place the plant box (2) on the damage protection mat (3).

10. The application method of a greening box for a bridge expansion joint as described in claim 9, characterized in that, The isolation stone (102) and the green plant box (2) have gaps on both sides along the bridge direction.

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