Outer ring suspension steel hanging box for repairing bearing platform

Abstract

The utility model belongs to the technical field of bridge construction, and particularly discloses an outer ring suspension steel hanging box for repairing a bearing platform, which comprises an assembling component, a sealing element and a bridge bearing platform structure, the assembling component is arranged on the bridge bearing platform structure, and the assembling component and the bridge bearing platform structure are sealed through the sealing element; the bridge bearing platform structure comprises a bearing platform, steel casings arranged on the left side and the right side of the bearing platform and positioning steel pipe piles arranged on the front side and the rear side of the bearing platform. A first suspension outrigger is arranged on the steel casing, a second suspension outrigger is arranged on the bearing platform, and a plurality of lower cross beams are arranged below the bearing platform. The outer ring suspension steel hanging box for repairing the bearing platform is reasonable in structure, convenient and accurate to construct and high in working efficiency, a large amount of labor cost and material cost needed by construction of the bearing platform in water are saved, and the difficulty of lowering and disassembling the steel hanging box is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and particularly relates to an outer-ring suspended steel cofferdam for repairing a bearing platform. Background Technique

[0002] In the field of bridge construction, in the construction of underwater bearing platforms, the commonly used method at present is to set steel pipe piles or steel sheet pile cofferdams in the water to dewater the inside of the cofferdam, then assemble the steel cofferdam and precast a steel or wooden bottom plate at the bottom of the steel cofferdam, lift the steel cofferdam to the construction area of the bearing platform by a floating crane and lower it, and intercept water through the steel cofferdam, and construction workers operate in the steel casing.

[0003] The above construction method has great limitations in the construction of the original structure of the bridge, such as in the bridge bearing platform repair project. First, due to the existence of the original bearing platform structure of the bridge, pre-assembling the steel cofferdam on land in advance and precasting the bottom plate and lowering the steel cofferdam will cause the bottom plate of the steel cofferdam to not fit well with the bottom of the original bearing platform structure of the bridge, resulting in difficulties in sealing the bottom and poor water interception effect; second, in the construction of expanding and reinforcing the bearing platform in the bridge repair project, due to the existence of the original bearing platform structure of the bridge and the enlarged part of the bearing platform, the size design of the steel cofferdam becomes extremely unfavorable. If the size of the steel cofferdam is designed too small, it will cause a conflict between the steel cofferdam and the structure of the cofferdam itself (such as a support rod), resulting in the problem that the steel cofferdam cannot be lowered. If the size of the cofferdam is enlarged to lower the steel cofferdam, it will cause insufficient stability and safety of the cofferdam due to the increased size of the cofferdam, and even a double-layer steel cofferdam needs to be set up, greatly increasing the construction cost, construction period, construction difficulty and construction risk of the construction unit. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the above problems existing in the prior art, and provide an outer-ring suspended steel cofferdam for repairing a bearing platform. The steel cofferdam has a reasonable structure, convenient and accurate construction, high working efficiency, saves a large amount of labor costs and material costs required for underwater bearing platform construction, and greatly reduces the difficulty of lowering and disassembling the steel cofferdam.

[0005] To achieve the above technical purpose and reach the above technical effect, the utility model is realized through the following technical solutions:

[0006] An outer-ring suspended steel cofferdam for repairing a bearing platform, comprising an assembling component, a sealing member and a bridge bearing platform structure. The assembling component is arranged on the bridge bearing platform structure, and the assembling component and the bridge bearing platform structure are sealed by the sealing member;

[0007] The bridge bearing platform structure includes a bearing platform, steel casing pipes arranged on the left and right sides of the bearing platform, and positioning steel pipe piles arranged on the front and rear sides of the bearing platform;

[0008] A suspension cantilever I is provided on the steel casing, a suspension cantilever II is provided on the bearing platform, and a plurality of lower cross beams are provided below the bearing platform;

[0009] Cross translation assemblies are provided at both ends of the steel casing and the lower cross beams;

[0010] The assembling assembly includes an upstream side block, middle side blocks, and a downstream side block. There are two middle side blocks. The upstream side block, the two middle side blocks, and the downstream side block form a frame structure;

[0011] Bottom plates are provided at the bottoms of the upstream side block, the two middle side blocks, and the downstream side block.

[0012] Further, the number of the suspension cantilever I and the suspension cantilever II is not less than two.

[0013] Further, the upstream side block, the two middle side blocks, and the downstream side block are connected by flange plates.

[0014] Further, side plate rigid skeletons are provided on the upstream side block, the two middle side blocks, and the downstream side block, and the side plate rigid skeletons are fixedly connected to the bottom plates by bolt connection.

[0015] Further, a drilling hole is provided at the top of the bearing platform, a suspension rod is provided in the drilling hole, and the other end of the suspension rod is provided on the bottom plate.

[0016] Further, a hook I is provided at the top of the upstream side block, the two middle side blocks, and the downstream side block.

[0017] Further, lifting lugs are provided on the upstream side block, the two middle side blocks, and the downstream side block.

[0018] Further, the cross translation assembly provided on the steel casing is used for moving the upstream side block.

[0019] Further, the two cross translation assemblies provided on the lower cross beam are respectively used for moving the two middle side blocks.

[0020] Further, the cross translation assembly includes a cross translation jack, a cross translation top support provided at the output end of the cross translation jack, and a reaction force block provided on the mounting seat of the cross translation jack.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] 1. The outer ring suspension steel cofferdam for repairing the bearing platform provided by the present utility model has a reasonable structure, convenient and accurate construction, high working efficiency, saves a large amount of labor costs and material costs required for the construction of the underwater bearing platform, and greatly reduces the difficulty of lowering and disassembling the steel cofferdam.

[0023] 2. In the present utility model, the traditional steel suspension box is designed as an assembled component with multiple side sub-blocks, reducing the construction difficulty and construction risk.

[0024] 3. In the present utility model, since the steel suspension box is divided into blocks, a seal can be made between the bottom plate and the bearing platform through a sealing member, solving the problem of water interception inside the traditional steel suspension box. Description of the Drawings

[0025] The drawings described herein are used to provide a further understanding of the present utility model, form a part of this application, and the schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0026] Figure 1 is the structural top view of the assembled component of the present utility model;

[0027] Figure 2 is the structural top view of the bridge bearing platform structure of the present utility model;

[0028] Figure 3 is the structural front view of the bridge bearing platform structure of the present utility model;

[0029] Figure 4 is the structural side view of the bridge bearing platform structure of the present utility model;

[0030] Figure 5 is the structural side view of the bridge bearing platform structure of the present utility model;

[0031] Figure 6 is the structural top view of the installation structure of the assembled component and the bridge bearing platform structure of the present utility model.

[0032] Among them, the reference numerals are: 100, assembled component; 200, transverse movement component; 300, sealing member; 400, bridge bearing platform structure; 1, upstream side sub-block; 2, middle side sub-block; 3, downstream side sub-block; 10, hook one; 20, lifting lug; 21, side plate rigid framework; 401, bearing platform; 402, steel casing; 6, positioning steel pipe pile; 14, hanging cantilever one; 15, hanging cantilever two; 16, lower cross beam; 200, transverse movement component; 8, transverse movement jack; 7, transverse movement jack support; 9, reaction force block; 17, suspension rod; 12, water stop rubber pad; 13, underwater concrete. Detailed Embodiment

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0034] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or positional relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0035] As Figures 1 to 6 shown, an outer-ring suspended steel cofferdam for cap repair includes:

[0036] A splicing assembly 100, which includes an upstream-side sub-block 1, middle-side sub-blocks 2, and a downstream-side sub-block 3. There are two middle-side sub-blocks 2. The upstream-side sub-block 1, the two middle-side sub-blocks 2, and the downstream-side sub-block 3 form a frame structure;

[0037] Among them, the upstream-side sub-block 1, the two middle-side sub-blocks 2, and the downstream-side sub-block 3 are connected by flange plates and then spliced into a frame structure;

[0038] Bottom plates are provided at the bottoms of the upstream-side sub-block 1, the two middle-side sub-blocks 2, and the downstream-side sub-block 3. That is, the upstream-side sub-block 1, the two middle-side sub-blocks 2, and the downstream-side sub-block 3 are all composed of side sub-blocks and bottom plates fixedly installed at the bottoms of the side sub-blocks. The side sub-blocks and the bottom plates can be fixedly connected by bolt connection and / or welding connection;

[0039] Among them, hooks 10 are provided at the tops of the upstream-side sub-block 1, the two middle-side sub-blocks 2, and the downstream-side sub-block 3. Lifting lugs 20 are provided on the upstream-side sub-block 1, the two middle-side sub-blocks 2, and the downstream-side sub-block 3. The hooks 10 are used for the suspended placement of the upstream-side sub-block 1, the two middle-side sub-blocks 2, and the downstream-side sub-block 3, and the lifting lugs 20 are used for the hoisting or suspended placement of the upstream-side sub-block 1, the two middle-side sub-blocks 2, and the downstream-side sub-block 3;

[0040] Among them, side plate rigid skeletons 21 are provided on the upstream-side sub-block 1, the two middle-side sub-blocks 2, and the downstream-side sub-block 3. The side plate rigid skeletons 21 are fixedly connected to the bottom plates by bolt connection, which is convenient for subsequent removal;

[0041] Bridge cap structure 400, the bridge cap structure 400 includes a bridge cap 401, steel casing 402 provided on the left and right sides of the bridge cap 401, and positioning steel pipe piles 6 provided on the front and rear sides of the bridge cap 401;

[0042] Among them, the assembling component 100 is arranged on the bridge cap 401;

[0043] A hanging cantilever beam 14 is provided on the steel casing 402, a hanging cantilever beam 15 is provided on the bridge cap 401, and a plurality of lower cross beams 16 are provided below the bridge cap 401; among them, hook two is provided on both the hanging cantilever beam 14 and the hanging cantilever beam 15;

[0044] Cross-moving components 200 are provided at both ends of the steel casing 402 and the lower cross beam 16;

[0045] The cross-moving component 200 includes a cross-moving jack 8, a cross-moving jacking bracket 7 arranged at the output end of the cross-moving jack 8, and a reaction force block 9 arranged on the mounting seat of the cross-moving jack 8;

[0046] The cross-moving component 200 arranged on the steel casing 402 is used for the movement of the upstream side block 1;

[0047] The two cross-moving components 100 arranged on the lower cross beam 16 are respectively used for the movement of the two middle side blocks 2;

[0048] A drilling hole is also opened at the top of the bridge cap 401, a suspension rod 17 is arranged in the drilling hole, and the other end of the suspension rod 17 is arranged on the bottom plate;

[0049] Sealing member 300, the sealing member 300 is used for sealing the connection between the assembling component 100 and the bridge cap 401, the sealing member 300 includes a water-stop rubber pad 12 and a bottom-sealing concrete 13, after the components of the assembling component 100 are assembled outside the bridge cap 401, the gaps between the bottom plates and the bottom of the bridge cap 401 are blocked by the water-stop rubber pad 12, and the upstream side block 1, the two middle side blocks 2 and the downstream side block 3 are sealed with the bridge cap 401 by pouring the bottom-sealing concrete 13 to complete the sealing between the assembling component 100 and the bridge cap 401.

[0050] The provided outer ring hanging steel cofferdam for repairing the bridge cap has the following assembly process:

[0051] S1: Prepare the components of the assembling component 100 in advance at the onshore processing site, that is, the upstream side block 1, the two middle side blocks 2, and the downstream side block 3. The upstream side block 1, the two middle side blocks 2, and the downstream side block 3 are each formed by welding the corresponding partial side blocks (wall plates) and the bottom plate into a whole, welding flange plates at the joints between the side blocks, welding hook one 10 at the upper part of each block, and welding lifting lugs 20 at the top of each block;

[0052] S2: Erect the first suspended cantilever beam 14 above the steel casing 402, erect the second suspended cantilever beam 15 on the bearing platform 401, erect the lower cross beam 16 below the bearing platform 401, and drive and insert the positioning steel pipe piles 6 in front of and behind the bearing platform 401;

[0053] S3: First, hoist the upstream side block 1 to the first suspended cantilever beam 14 on the steel casing 402 by a floating crane and suspend it by the second hook thereon;

[0054] S4: Install the transverse movement assembly 200 between the upstream side block 1 and the steel casing 402, and horizontally move the upstream side block 1 to the installation position through the transverse movement assembly 200;

[0055] S5: When the middle side block 2 is lowered, ensure that the middle side block 2 is vertically lowered through the positioning steel pipe piles 6. Hoist the two side blocks 2 by a floating crane and hoist them between the first suspended cantilever beam 14 and the lower cross beam 16. Specifically, suspend them through the second suspended cantilever beam 15 and support them by the lower cross beam 16. And set the transverse movement assembly 200 at the end of the lower cross beam 16. The other end of the transverse movement assembly 200 is connected to the middle side block 2 for horizontally moving the middle side block 2 to the installation position;

[0056] S6: Hoist the downstream side block 3 by a floating crane and hoist it onto the steel casing 402 at the other end of the bearing platform 401. Specifically, hoist it and suspend it on the first suspended cantilever beam 14 on the steel casing 402 at the other end of the bearing platform 401, and then horizontally move the downstream side block 3 to the installation position through the transverse movement assembly 200, and align the flange plate at the connection with the middle side block 2. There are flange bolts on the flange plate. Tighten the flange bolts to complete the fixation between the side blocks;

[0057] S7: Drill holes on the top of the bearing platform 401, arrange the high-strength precision rolled thread steel suspender bars 17, suspend the bottom cross beam and tension the suspender bars 17, tighten the gap between the bottom plate and the bottom of the bearing platform 401, seal the gap with the high-elasticity water-stop rubber pad 12, and pour the bottom-sealing concrete 13 between the bearing platform 401 and each side block;

[0058] S8: The connection positions between the side plate rigid framework 21 and the bottom plate are arranged staggeredly, and the bottom plate and the side plate rigid framework 21 are connected by bolts. When disassembling, release the bolt connection between the bottom plate and the side plate rigid framework 21 to separate the bottom plate from the side plate rigid framework 21.

[0059] The outer-ring suspended steel lifting box for bearing platform repair provided by the present utility model has a reasonable structure, can be assembled quickly, and has the characteristics of convenient disassembly and can be reused multiple times.

[0060] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0061] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. An outer ring hanging steel box for cap repair, characterized in that: The invention comprises an assembling component (100), a sealing member (300) and a bridge cap structure (400), wherein the assembling component (100) is arranged on the bridge cap structure (400), and the assembling component (100) and the bridge cap structure (400) are sealed by the sealing member (300); The bridge cap structure (400) comprises a cap (401), a steel casing (402) arranged on the left and right sides of the cap (401), and positioning steel pipe piles (6) arranged on the front and rear sides of the cap (401); The steel casing (402) is provided with a first hanging beam (14), the support platform (401) is provided with a second hanging beam (15), and a plurality of lower cross beams (16) are provided below the support platform (401); The upper portion of the steel casing (402) and the two ends of the lower cross beam (16) are provided with a transverse movement assembly (200); The assembly component (100) comprises an upstream side block (1), a middle side block (2), and a downstream side block (3); the middle side block (2) is provided in two pieces; the upstream side block (1), the two middle side blocks (2), and the downstream side block (3) form a frame structure; The bottoms of the upstream side block (1), the two middle side blocks (2) and the downstream side block (3) are all provided with bottom plates.

2. The outer ring suspension steel hanging box for foundation repair according to claim 1 is characterized in that: The number of the first hanging beam (14) and the second hanging beam (15) is no less than two.

3. The outer ring suspension steel hanging box for foundation repair according to claim 1 is characterized in that: The upstream side block (1), the two middle side blocks (2) and the downstream side block (3) are connected via flanges.

4. The outer ring suspension steel hanging box for foundation repair according to claim 1 is characterized in that: The upstream side block (1), the two middle side blocks (2) and the downstream side block (3) are all provided with a side plate rigid frame (21), and the side plate rigid frame (21) is fixedly connected to the bottom plate by means of bolt connection.

5. The outer ring suspension steel hanging box for foundation repair according to claim 1 is characterized in that: A drilling hole is provided on the top of the support platform (401), a suspension rod is provided in the drilling hole, and the other end of the suspension rod is provided on the bottom plate.

6. The outer ring hanging steel box for cap repair according to claim 1 is characterized in that: The tops of the upstream side block (1), the two middle side blocks (2) and the downstream side block (3) are all provided with a hook (10).

7. The outer ring suspension steel hanging box for repairing a pile cap according to claim 1 is characterized in that: The upstream side block (1), the two middle side blocks (2) and the downstream side block (3) are all provided with lifting ears (20).

8. The outer ring suspension steel hanging box for repairing a pile cap according to claim 1 is characterized in that: The transverse movement assembly (200) arranged on the steel casing (402) is used to move the upstream side block (1).

9. The outer ring suspension steel hanging box for repairing a pile cap according to claim 1 is characterized in that: The two transverse movement components (200) arranged on the lower cross beam (16) are respectively used for moving the two middle side blocks (2).

10. The outer ring suspension steel hanging box for repairing a pile cap according to claim 1, characterized in that: The transverse movement assembly (200) comprises a transverse movement jack (8), a transverse movement support (7) arranged at the output end of the transverse movement jack (8), and a reaction force block (902) arranged on the mounting seat of the transverse movement jack (8).

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