A flood control device for super-large bridge tower cranes

Abstract

This utility model discloses a flood prevention device for a large bridge tower crane, including a protective casing surrounding the bottom of the tower crane for flood protection. Both the tower crane and the casing are fixedly installed on a reinforced concrete foundation. A connecting plate is installed at the bottom of the casing, and a diagonal bracing plate is installed at the connection between the casing and the connecting plate. An embedded steel plate is pre-embedded in the foundation using anchors. The connecting plate and the embedded steel plate are fixedly connected by connecting bolts, and a water-stop rubber plate is installed between the connecting plate and the embedded steel plate. This device can protect the tower crane foundation and structure, thus solving the safety problem of large bridge tower cranes encountering floods during rainy seasons or when constructing near rivers.

Description

Technical Field

[0001] This utility model relates to the field of tower crane technology for extra-large bridges, and in particular to a flood control device for tower cranes for extra-large bridges. Background Technology

[0002] Depending on the bridge type (highway / railway) and span specifications, the "extra-large bridges" referred to in this application include highway extra-large bridges and railway extra-large bridges. Highway extra-large bridges are those with a total span length of more than 800 meters or a single span length of more than 100 meters, while railway extra-large bridges are those with a span length of more than 400 meters. When constructing such extra-large bridges, tower cranes are indispensable key equipment in the construction of large bridges, used to hoist bridge components and materials to ensure the sequential progress of the project. However, during the construction process, especially in bridge construction during the rainy season or near rivers, floods can threaten the tower crane foundation, structural stability, and construction safety. Therefore, taking appropriate flood control measures is crucial to solving the problem of tower crane construction during the rainy season or near rivers. Utility Model Content

[0003] One of the objectives of this utility model is, at least, to provide a flood prevention device for super-large bridge tower cranes, which can protect the tower crane foundation and structure, thereby solving the safety problem of super-large bridge tower cranes encountering floods during the rainy season or when constructing near rivers.

[0004] To achieve the above objectives, the technical solution adopted by this utility model includes the following aspects.

[0005] A flood control device for a super-large bridge tower crane includes: a protective casing for flood control installed around the bottom of the tower crane; both the tower crane and the protective casing are fixedly installed on a reinforced concrete foundation; a connecting plate is installed at the bottom of the protective casing; a diagonal bracing plate is installed at the connection between the protective casing and the connecting plate; a pre-embedded steel plate is embedded in the foundation by anchors; the connecting plate and the pre-embedded steel plate are fixedly connected by connecting bolts; and a water-stop rubber plate is installed between the connecting plate and the pre-embedded steel plate.

[0006] Preferably, the casing is a cylindrical steel structure with open ends, the inner wall of the casing is kept at a certain distance from the main structure of the tower crane, and the height of the casing is not less than 1m.

[0007] Preferably, the connecting plate has a circular cross-section, and two sets of bolt holes are evenly arranged circumferentially on the connecting plate, either facing each other or staggered. The bottom of the protective sleeve is fixedly connected to the top of the connecting plate and is located in the middle of the connecting plate, between the two sets of bolt holes.

[0008] Preferably, the inner and outer walls of the casing are provided with diagonal bracing plates, which are arranged around the circumference of the casing. One end of the diagonal bracing plate is fixedly connected to the casing, and the other end is fixedly connected to the top of the connecting plate and is located between the casing and the bolt hole.

[0009] Preferably, the embedded steel plate has a circular cross-section, and multiple sets of anchoring components are evenly arranged around the bottom of the embedded steel plate. Each set of anchoring components includes two anchors, and the distance between the two anchors is less than the distance between the two bolt holes on the connecting plate. The lower part of the embedded steel plate is fixed in the foundation by the anchors, and the upper part of the embedded steel plate is located on the surface of the foundation. The upper part of the embedded steel plate is provided with bolt holes corresponding to the bolt holes on the connecting plate.

[0010] Preferably, one end of the anchor is fixedly connected to the bottom of the pre-embedded steel plate, and the other end is away from the pre-embedded steel plate and is hook-shaped, with the hooks of the two anchors in each set of anchoring components facing away from each other.

[0011] Preferably, a water-blocking component is provided at the connecting bolt, the water-blocking component is located on the water-facing side of the casing and on the water-facing side of the connecting bolt, and a nut (9) is fitted on the connecting bolt.

[0012] Preferably, the cross-section of the water-blocking component is arc-shaped, and the water-blocking component is partially enclosed outside the nut, with the convex side of the arc surface of the water-blocking component facing the direction of water flow; or the water-blocking component is a cylindrical structure with open ends, the water-blocking component is sleeved outside the nut on the water-facing side of the protective cylinder, and the water-blocking component is fixedly connected to the top of the connecting plate.

[0013] Preferably, the casing is provided with a water-dividing wing for diverting water flow. The water-dividing wing is fixed on the outer wall of the casing and located on the side facing the water flow. The water-dividing wing has a symmetrical structure and includes a connecting surface for connecting to the outer side of the casing and two water-dividing surfaces for diverting water flow. The two water-dividing surfaces are located on the same side of the connecting surface and are symmetrically arranged. The cross-sections of the connecting surface and the water-dividing surfaces are both arc-shaped, and the two water-dividing surfaces form an arc-shaped conical structure.

[0014] Preferably, the protective casing is a square cylindrical steel structure with open ends, and the cross-section of the protective casing is U-shaped.

[0015] In summary, by adopting the above technical solution, this utility model has at least the following beneficial effects: 1. The protective casing in this solution not only prevents floodwaters from eroding the tower crane foundation, thus avoiding the impact of foundation loosening and hollowing on the stability of the tower crane, or even causing the tower crane to overturn, but also prevents floodwaters from impacting the tower crane structure, thus avoiding the problems of floodwaters causing tower crane deformation, breakage or loosening of connecting parts, or even affecting normal function, thereby improving construction safety. 2. A water-blocking component with a circular arc or ring-shaped cross-section is placed around the nut to prevent the nut from loosening due to water flow directly scouring it. 3. The water-dividing surface of the water-dividing wing can play a role in diverting the flow. When the water flows towards the water-dividing wing, the arc design of the water-dividing surface can split a stream of water into two streams on both sides, and at the same time change the direction of the water flow, so that the water flow no longer directly hits the casing, reducing the impact of the water flow on the casing. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a flood control device for a super-large bridge tower crane, an exemplary embodiment of this utility model.

[0017] Figure 2 yes Figure 1 Enlarged diagram of point A in the middle.

[0018] Figure 3 This is a schematic diagram of the layout of bolt hole one.

[0019] Figure 4 This is a schematic diagram of another arrangement of bolt hole one.

[0020] Figure 5 This is a structural diagram showing the relative positions of the water-blocking component and the nut.

[0021] Figure 6 This is another structural diagram showing the relative positions of the water-blocking component and the nut.

[0022] Figure 7 This is a schematic diagram of the hydrofoil structure.

[0023] The markings in the diagram are: 1-Tower crane, 2-Casing, 3-Foundation, 4-Connecting plate, 5-Embedded steel plate, 6-Anchor, 7-Connecting bolt, 8-Water-stop rubber plate, 9-Nut, 10-Diagonal brace, 11-Water-blocking component, 12-Water-dividing wing, 121-Connecting surface, 122-Water-dividing surface. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, so that the purpose, technical solution and advantages of the present invention will be clearer. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances. Example

[0026] This embodiment illustrates the structure of a flood control device for a tower crane on a major bridge, for reference... Figure 1 The flood control device for the super-large bridge tower crane includes a protective casing 2 surrounding the bottom of the tower crane 1. Both the tower crane 1 and the protective casing 2 are vertically fixed on the foundation 3. The protective casing 2 is used to prevent floods from eroding the tower crane foundation and impacting the tower crane structure. The foundation 3 is a reinforced concrete structure pre-cast during the installation of the super-large bridge tower crane.

[0027] refer to Figures 2-4 The casing 2 is a steel structure, a cylindrical structure open at both ends, with an annular cross-section. The inner wall of the casing 2 maintains a certain distance (e.g., 50cm) from the main structure of the tower crane 1. The height of the casing 2 is not less than 1m. A flood level marker (not shown in the figure) is installed on the casing 2. A connecting plate 4 is installed at the bottom of the casing 2. The connecting plate 4 has an annular cross-section, with its inner diameter smaller than the inner diameter of the casing 2 and its outer diameter larger than the outer diameter of the casing 2. Two sets of bolt holes are evenly arranged circumferentially on the connecting plate 4, located on one side of the inner wall and one side of the outer wall of the casing 2 (the two sets of bolt holes are either directly opposite or staggered; or, in addition to the directly opposite arrangement, bolt holes are added to the outer wall of the casing 2 to create another form of staggered arrangement, such as...). Figure 3 Based on this, an additional bolt hole is added between adjacent bolt holes on the outer wall of the casing 2 (this structure can improve the stability of the connection). The bottom of the casing 2 is fixedly connected to the top of the connecting plate 4 and is located in the middle of the connecting plate 4, and is also located between the two sets of bolt holes.

[0028] Both the inner and outer walls of the casing 2 are provided with diagonal bracing plates 10. The diagonal bracing plates 10 are located at the connection between the casing 2 and the connecting plate 4. The diagonal bracing plates 10 are arranged around the casing 2. One end of the diagonal bracing plate 10 is fixedly connected to the casing 2, and the other end is fixedly connected to the top of the connecting plate 4. It is located between the casing 2 and the bolt hole 1. The diagonal bracing plates 10 are used to support the casing 2 and enhance the structural stability of the casing 2.

[0029] During the construction of foundation 3, a pre-embedded steel plate 5 is embedded in the foundation 3 in advance. The pre-embedded steel plate 5 is used to fix the casing 2 to the foundation 3. The cross-section of the pre-embedded steel plate 5 is annular, and the size of the pre-embedded steel plate 5 is adapted to the size of the connecting plate 4. Multiple sets of anchoring components are evenly arranged around the bottom of the pre-embedded steel plate 5. Each set of anchoring components includes two anchors 6. The distance between the two anchors 6 is smaller than the distance between the two bolt holes on the connecting plate 4. The anchors 6 are used to fix the pre-embedded steel plate 5, and one end of the anchor 6 is fixedly connected to the bottom of the pre-embedded steel plate 5. The other end is away from the embedded steel plate 5 and is hook-shaped. The hooks of the two anchors 6 in each set of anchoring components are arranged in opposite directions. The hooks are used to enhance the adhesion between the anchor 6 and the foundation 3, ensure that the anchor 6 is firmly anchored in the foundation 3, prevent the anchor 6 from sliding, and thus improve the integrity and safety of the structure. When the embedded steel plate 5 is fixed by the anchor 6, the lower part of the embedded steel plate 5 is fixed in the foundation 3, and the upper part of the embedded steel plate 5 is located on the surface of the foundation 3. The upper part of the embedded steel plate 5 is provided with bolt hole 2 corresponding to bolt hole 1 of the connecting plate 4.

[0030] The connecting plate 4 and the embedded steel plate 5 are fixedly connected by connecting bolts 7. When the connecting bolts 7 connect the connecting plate 4 and the embedded steel plate 5, a water-stop rubber plate 8 is provided between the connecting plate 4 and the embedded steel plate 5. The water-stop rubber plate 8 is used to prevent floodwater from seeping into the casing 2 and corroding the tower crane or connecting structure, causing damage to the tower crane and affecting its safety. The water-stop rubber plate 8 has a bolt hole 3 corresponding to the bolt hole 1 of the connecting plate 4. The first end of the connecting bolt 7 passes through the corresponding bolt hole 1, bolt hole 3 and bolt hole 2 in sequence. The second end of the connecting bolt 7 extends out of the top of the connecting plate 4. The first end and the second end of the connecting bolt 7 are opposite each other. A nut 9 is fitted on the connecting bolt 7. The nut 9 is a double nut. The nut 9 is fitted from the second end of the connecting bolt 7 and fixed to the top of the connecting plate 4.

[0031] A water-blocking component 11 is provided at the connecting bolt 7. The water-blocking component 11 is located on the water-facing side of the casing 2 and on the water-facing side of the connecting bolt 7. When the bridge crane is located in the river section, the water-blocking component 11 is arranged outside the connecting bolt 7 facing the direction of water flow. When the location of the bridge crane is uncertain and the direction of water flow is unknown, water-blocking components 11 are arranged on the outside of the connecting bolt 7. The water-blocking component 11 is used to prevent the nut 9 from loosening due to direct water flow. The cross-section of the water-blocking component 11 is arc-shaped (see reference). Figure 5 The protruding side faces the direction of water flow. The water-blocking member 11 is partially enclosed outside the nut 9. One end of the water-blocking member 11 is fixedly connected to the top of the connecting plate 4, and the other end extends away from the connecting plate 4. The arc surface of the water-blocking member 11 faces the direction of water flow, and the distance between the inner wall of the water-blocking member 11 and the connecting bolt 7 is sufficient to install the nut 9. As a preferred embodiment, the water-blocking member 11 is a cylindrical structure with open ends (see reference). Figure 6 The cross-section of the water-blocking component 11 is circular. The water-blocking component 11 is sleeved on the outside of the nut 9 on the water-facing side of the casing 2 and is fixedly connected to the top of the connecting plate 4. The inner diameter of the water-blocking component 11 is sufficient to install the nut 9. The water-blocking component 11 can not only slow down the water flow to wash away the nut 9 and the connecting bolt 7, but also prevent mud and sand from burying the nut 9 and the connecting bolt 7, which is convenient for later disassembly.

[0032] The casing 2 is equipped with water-dividing wings 12, which are fixed to the outer wall of the casing 2. When the bridge crane is located in the river section, the water-dividing wings 12 are arranged on the side facing the direction of the water flow. When the location of the bridge crane makes it impossible to determine the direction of the water flow, multiple water-dividing wings 12 are arranged circumferentially on the outer wall of the casing 2, with each water-dividing wing 12 positioned at half the overall height of the casing 2. The water-dividing wings 12 are used to reduce the impact of the water flow on the casing 2. The water-dividing wings 12 have a symmetrical structure. Figure 7 The water-dividing wing 12 includes a connecting surface 121 for connecting to the outer side of the casing 2, and two water-dividing surfaces 122 for water flow diversion. The two water-dividing surfaces 122 are located on the same side of the connecting surface 121 and are symmetrically arranged. The cross-section of the connecting surface 121 and the water-dividing surface 122 are both arc-shaped. The two water-dividing surfaces 122 form an arc-shaped conical structure. When water flows towards the water-dividing wing 12, the arc design of the water-dividing surface 122 divides a stream of water into two streams on both sides, and at the same time changes the direction of the water flow, so that the water flow no longer directly hits the casing 2, reducing the impact of the water flow on the casing 2.

[0033] In practical applications, the casing 2 can also be designed as a square cylindrical steel structure with open ends. The cross-section of the casing 2 is U-shaped. The shapes of the connecting plate 4, the embedded steel plate 5, and the water-stop rubber plate 8 are changed to correspond to the shape of the casing 2, and the cross-section is also U-shaped. At this time, the cross-section of the connecting surface 121 of the water-dividing wing 12 is rectangular.

[0034] The above description is merely a detailed illustration of specific embodiments of this utility model, and not a limitation thereof. Various substitutions, modifications, and improvements made by those skilled in the art without departing from the principles and scope of this utility model should be included within the protection scope of this utility model.

Claims

1. A flood control device for a super-large bridge tower crane, characterized in that, include: A flood-proof casing (2) is installed around the bottom of the tower crane (1). The tower crane (1) and the casing (2) are both fixed on the foundation (3) of the reinforced concrete structure. A connecting plate (4) is provided at the bottom of the casing (2). A diagonal bracing plate (10) is provided at the connection between the casing (2) and the connecting plate (4). An embedded steel plate (5) is pre-embedded on the foundation (3) by anchors (6). The connecting plate (4) and the embedded steel plate (5) are fixedly connected by connecting bolts (7). A water-stop rubber plate (8) is provided between the connecting plate (4) and the embedded steel plate (5).

2. The flood control device for a super-large bridge tower crane according to claim 1, characterized in that, The casing (2) is a cylindrical steel structure with open ends. The inner wall of the casing (2) is kept at a certain distance from the main structure of the tower crane (1). The height of the casing (2) is not less than 1m.

3. The flood control device for a super-large bridge tower crane according to claim 2, characterized in that, The connecting plate (4) has a circular cross-section. Two sets of bolt holes are evenly arranged on the connecting plate (4) in the circumferential direction. The bottom of the protective sleeve (2) is fixedly connected to the top of the connecting plate (4) and is located in the middle of the connecting plate (4), and is also located between the two sets of bolt holes.

4. A flood control device for a super-large bridge tower crane according to claim 3, characterized in that, Both the inner and outer walls of the casing (2) are provided with inclined bracing plates (10). The inclined bracing plates (10) are arranged around the casing (2). One end of the inclined bracing plate (10) is fixedly connected to the casing (2), and the other end is fixedly connected to the top of the connecting plate (4) and is located between the casing (2) and the bolt hole.

5. A flood control device for a super-large bridge tower crane according to claim 3, characterized in that, The embedded steel plate (5) has a circular cross-section. Multiple sets of anchoring components are evenly arranged around the bottom of the embedded steel plate (5). Each set of anchoring components includes two anchors (6). The distance between the two anchors (6) is less than the distance between the two bolt holes on the connecting plate (4). The lower part of the embedded steel plate (5) is fixed in the foundation (3) by the anchors (6). The upper part of the embedded steel plate (5) is located on the surface of the foundation (3). The upper part of the embedded steel plate (5) is provided with bolt holes two corresponding to bolt holes one on the connecting plate (4).

6. A flood control device for a super-large bridge tower crane according to claim 5, characterized in that, One end of the anchor (6) is fixedly connected to the bottom of the pre-embedded steel plate (5), and the other end is away from the pre-embedded steel plate (5) and is hook-shaped. The hooks of the two anchors (6) in each set of anchoring components are set opposite to each other.

7. A flood control device for a super-large bridge tower crane according to claim 1, characterized in that, A water-blocking component (11) is provided at the connecting bolt (7). The water-blocking component (11) is located on the water-facing surface of the casing (2) and on the water-facing side of the connecting bolt (7). A nut (9) is fitted on the connecting bolt (7).

8. A flood control device for a super-large bridge tower crane according to claim 7, characterized in that, The cross-section of the water-blocking component (11) is arc-shaped. The water-blocking component (11) is partially enclosed outside the nut (9), and the convex side of the arc surface of the water-blocking component (11) faces the direction of the water flow; or the water-blocking component (11) is a cylindrical structure with open ends. The water-blocking component (11) is sleeved outside the nut (9) on the water-facing side of the protective sleeve (2), and the water-blocking component (11) is fixedly connected to the top of the connecting plate (4).

9. A flood control device for a super-large bridge tower crane according to claim 2, characterized in that, The casing (2) is provided with a water-dividing wing (12) for diverting water flow. The water-dividing wing (12) is fixed on the outer wall of the casing (2) and located on the side facing the water flow. The water-dividing wing (12) has a symmetrical structure. The water-dividing wing (12) includes a connecting surface (121) for connecting to the outer side of the casing (2) and two water-dividing surfaces (122) for diverting water flow. The two water-dividing surfaces (122) are located on the same side of the connecting surface (121) and are symmetrically arranged. The cross-section of the connecting surface (121) and the water-dividing surface (122) are both arc-shaped. The two water-dividing surfaces (122) form an arc-shaped conical structure.

10. A flood control device for a super-large bridge tower crane according to claim 1, characterized in that, The protective casing (2) is a square cylindrical steel structure with open ends, and the cross-section of the protective casing (2) is U-shaped.

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