Heightening device

Abstract

The utility model belongs to the field of bridge construction, and particularly relates to a heightening device. According to the bearing assembly, the two vertical bearing beams are arranged, the limiting profile steel is arranged on the bearing beams, in the heightening process, the upper end of the pile casing can be evenly stressed through the four ends of the bearing beams, further, the heightening device can be stably installed above the pile casing by arranging the limiting profile steel, and the reliability of equipment is high. In addition, through the fixing modes of welding and the like, the limiting profile steel can be generally used for pile casings with small diameter differences, and the application flexibility of the heightening device is improved to a certain extent. Through the design that the bearing beam is connected with the pile casing, the adjusting piece is arranged on the bearing beam, the limiting profile steel can be adjusted according to the diameter of the pile casing, the application flexibility of the heightening device is greatly improved, and the problem that at present, a plurality of heightening devices need to be input according to the diameter of the permanent steel pile casing on different pier positions is solved. And the practicability is poor.

Description

Technical Field

[0001] The present application belongs to the field of bridge construction, and specifically relates to a height connection device for connecting the casing of a hanging box cofferdam. Background Art

[0002] As a protective structure for the construction of deep-water bridge abutments and piers, the box cofferdam mainly includes a box bottom plate, multiple sets of permanent steel casings arranged through the box bottom plate, and a cofferdam arranged around the edge of the box bottom plate.

[0003] To ensure the long-term stability and durability of the casing, an annular steel structure is often used to enhance its performance. Before lowering the box cofferdam, the upper end of the annular steel structure must be raised to prevent interference between the lowering components located above the raising device and the cofferdam during the lowering process. If the permanent steel casing is annular, a casing of the same diameter is usually used for the raising process.

[0004] However, the applicant found that, on the one hand, this type of height connection device cannot be used universally in the construction of ultra-deep, multi-diameter pile foundation steel-concrete composite box cofferdams. It is necessary to put in multiple sets of height connection devices according to the diameter of the permanent steel casing at different pier positions, which has poor practicality. On the other hand, when the same diameter steel casing is used for height connection, it is necessary to weld circumferential seams along the docking position during installation, and it is also necessary to cut circumferentially before it can be transferred to other piers for use during dismantling. The installation and disassembly of the height connection device is time-consuming and difficult. Utility Model Content

[0005] To solve the above technical problems, the present application provides a new type of connecting device, which is achieved through the following technical solutions:

[0006] A connecting device, wherein the lower end of the connecting device is provided with a load-bearing component for connecting with the upper end of the casing; the load-bearing component includes two vertically arranged load-bearing beams, and a limiting steel provided on the load-bearing beams and used to abut against the inner wall of the casing.

[0007] Preferably, the load-bearing assembly further comprises an adjusting member for adjusting the position of the limiting steel on the load-bearing beam; the adjusting member is arranged on the load-bearing beam.

[0008] Preferably, the height-connecting device further comprises a bottom frame fixedly connected to the outer end of the load-bearing beam; the bottom frame comprises a stabilizing frame connecting the ends of two adjacent load-bearing beams.

[0009] Preferably, the stabilizing frames form a square.

[0010] Preferably, a shoulder pole assembly is provided at the upper end of the height-connecting device; the shoulder pole assembly comprises two shoulder pole beams arranged vertically, and the intersection of the two shoulder pole beams and the intersection of the two load-bearing beams are arranged on the same vertical line.

[0011] Preferably, when observed from a longitudinal perspective, the main part of the height-connecting device protruding from one end of the shoulder pole beam is distributed between the ends of two adjacent load-bearing beams.

[0012] Preferably, a square working platform is connected to the lower side of the shoulder pole assembly; the main body of the shoulder pole beam protruding heightening device is arranged at the four corners of the working platform.

[0013] Preferably, the connecting device also includes a connecting frame, which includes a longitudinal beam connected to the load-bearing component and / or the bottom frame, and at least two groups of support frames arranged parallel to the two load-bearing beams; the end of the support frame is connected to the inner wall of the longitudinal beam.

[0014] Preferably, the number of the longitudinal beams is four, and a reinforcing brace is provided between two adjacent longitudinal beams; the reinforcing brace is provided horizontally or inclined.

[0015] Preferably, the longitudinal beam is arranged on the load-bearing component; a square top frame is provided at the upper end of the connecting frame; and the center points of the top frame and the bottom frame are on the same vertical line.

[0016] Compared with the prior art, this application has the following beneficial effects:

[0017] The load-bearing assembly of the present application is provided with two vertical load-bearing beams and spacer steels on the load-bearing beams. During the height connection process, the upper end of the casing can be evenly stressed by the four ends of the load-bearing beams. Furthermore, the spacer steels can stably install the height connection device above the casing, improving the reliability of the equipment. In addition, through welding and other fixing methods, the spacer steels can be used for casings with similar diameters, which to a certain extent increases the flexibility of the height connection device.

[0018] This application designs the connection between the load-bearing beam and the casing, and sets an adjustment part on the load-bearing beam. The limiting steel can be adjusted according to the diameter of the casing, which greatly improves the flexibility of the application of the height connection device and solves the current technical problem of needing to invest multiple sets of height connection devices according to the diameter of the permanent steel casing at different pier positions, which has poor practicality.

[0019] This application sets up a square stabilizing frame. After the height connecting device is installed, the upper end of the casing will be in balanced contact with the stabilizing frame, thereby reducing the limitations of the height connecting device after the jack is installed, such as the small contact area between the load-bearing beam and the casing and the excessive concentration of stress. The height connecting device is more stable during the lowering of the hanging box cofferdam.

[0020] This application utilizes a unique design for the shoulder pole assembly used to mount the jack. By utilizing the positional distribution between the shoulder pole beam and the load-bearing beam, the main portion of the elevated device protruding from one end of the shoulder pole beam is positioned between the ends of two adjacent load-bearing beams. This optimizes the downward force transmission path of the shoulder pole beam, ensuring even force distribution and thus improving the stability and load-bearing capacity of the structure. Furthermore, positioning the main portion of the elevated device protruding from the shoulder pole beam at the four corners of the work platform further improves the force distribution of the equipment.

[0021] This application uses the design of longitudinal beams, connecting frames and reinforcing supports, as well as the top frame, so the main part of the connecting device has strong stability and reliability. It can be used for the construction of high-pile foundation box cofferdams in deep offshore waters. The overall installation and disassembly of the connecting device is easy, the material investment is small, and it has a high market value. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To clearly illustrate the embodiments, the following briefly introduces the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the height-connecting device in Example 1 of the present application;

[0024] Figure 2 This is a partial structural diagram of the connecting device in Example 1 of the present application;

[0025] Figure 3 This is a schematic diagram of the installation structure of the height connection device and the casing in Example 1 of the present application;

[0026] Figure 4 This is a top view of the connecting device in Example 1 of the present application;

[0027] Figure 5 This is a bottom view of the connecting device of Example 1 of the present application;

[0028] Figure numerals: 100, load-bearing component, 110, load-bearing beam, 120, limiting steel, 200, bottom frame, 300, shoulder pole component, 310, shoulder pole beam, 400, working platform, 500, connecting elevated frame, 510, longitudinal beam, 520, support frame, 530, reinforcement support, 600, top frame. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Based on these descriptions, a person skilled in the art will be able to implement the present invention. Furthermore, the embodiments of the present invention described below generally represent only a portion of the present invention, rather than all of the embodiments. Therefore, all other embodiments derived by a person skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0030] Example 1

[0031] This embodiment discloses a connecting device, the lower end of which is provided with a load-bearing component 100 for connecting with the upper end of the casing; the load-bearing component 100 includes two vertically arranged load-bearing beams 110, and a limiting steel 120 arranged on the load-bearing beams 110 and used to abut against the inner wall of the casing.

[0032] The heightening device further includes a bottom frame 200 fixedly connected to the outer ends of the load-bearing beams 110; the bottom frame 200 includes a stabilizing frame connecting the ends of two adjacent load-bearing beams 110. In this embodiment, the stabilizing frames form a square.

[0033] The connecting device also includes a connecting frame 500, which includes a longitudinal beam 510 connected to the load-bearing assembly 100 and two sets of support frames 520 arranged parallel to the two load-bearing beams 110; the ends of the support frames 520 are connected to the inner walls of the longitudinal beams 510. There are four longitudinal beams 510, and reinforcement braces 530 are installed between adjacent longitudinal beams 510. The reinforcement braces 530 include a horizontal brace installed in the middle of the two longitudinal beams 510, and inclined braces installed at both ends and in the middle of the two longitudinal beams 510.

[0034] A square top frame 600 is installed at the top of the connecting frame 500. The center points of the top frame 600 and the bottom frame 200 are aligned on the same vertical line. After installation, this vertical line becomes the central axis of the annular casing. In this embodiment, the square area of the top frame 600 is smaller than that of the bottom frame 200.

[0035] A square work platform 400 is provided above the top frame 600; a shoulder pole assembly 300 is provided on the work platform 400; the shoulder pole assembly 300 includes two vertically arranged shoulder pole beams 310, and the intersection of the two shoulder pole beams 310 is arranged on the same vertical line as the intersection of the two load-bearing beams 110. Observed from a longitudinal perspective, the main part of the height-connecting device protruding from one end of the shoulder pole beam 310 is distributed between the ends of two adjacent load-bearing beams 110. The main part of the height-connecting device protruding from the shoulder pole beam 310 is provided at the four corners of the work platform 400. In this embodiment, the height-connecting device also includes a ladder provided through the height-connecting device.

[0036] This embodiment also discloses a method for using the above-mentioned connecting device, which specifically includes the following steps:

[0037] S1. After the prefabricated bottom plate of the box cofferdam is assembled, the welded main body of the height connection device is hoisted to the top of the casing by a floating crane;

[0038] S2. Weld the limiting steel at the bottom of the height-connecting device and weld the limiting steel to the steel casing to complete the installation.

[0039] Example 2

[0040] This embodiment discloses a heightening device. A load-bearing assembly 100 is provided at its lower end for connection with the upper end of the casing. The load-bearing assembly 100 includes two vertically arranged load-bearing beams 110 and two auxiliary shoulder beams extending through the intersection of the two vertically arranged load-bearing beams 110. The angle between the auxiliary shoulder beams and the load-bearing beams 110 is 45 degrees. The load-bearing assembly 100 also includes a position-limiting steel 120 disposed on the load-bearing beams 110 for contacting the inner wall of the casing.

[0041] The load-bearing assembly 100 further includes an adjusting member for adjusting the position of the limiting steel 120 on the load-bearing beam 110; the adjusting member is disposed on the load-bearing beam 110. In this embodiment, the adjusting member is a slide rail disposed on the lower surface of the load-bearing beam 110 with a fixing function.

[0042] The height-connecting device also includes a ring-shaped steel fixedly connected to the outer end of the load-bearing beam 110, and a working platform 400 is provided on the upper end of the ring-shaped steel. A shoulder pole assembly 300 is provided on the working platform 400, and the shoulder pole assembly 300 includes two shoulder pole beams 310 arranged vertically; the shoulder pole beam 310 protrudes from the position of the ring-shaped steel for installing a jack.

[0043] This embodiment also discloses a method for using the above-mentioned connecting device, which specifically includes the following steps:

[0044] S1. After the prefabricated bottom plate of the box cofferdam is assembled, the welded main body of the height connection device is hoisted to the top of the casing by a floating crane;

[0045] S2. Adjust the limit steel at the bottom of the height connection device and weld the limit steel to the steel casing to complete the installation.

Claims

1. A height connection device, characterized in that: A load-bearing assembly (100) for connecting with the upper end of the casing is provided at the lower end of the connecting device; the load-bearing assembly (100) comprises two vertically arranged load-bearing beams (110), and a limiting steel (120) provided on the load-bearing beams (110) and for contacting with the inner wall of the casing.

2. A connecting device according to claim 1, characterized in that: The load-bearing assembly (100) further comprises an adjusting member for adjusting the position of the limiting steel (120) on the load-bearing beam (110); the adjusting member is arranged on the load-bearing beam (110).

3. The connecting device according to claim 1, characterized in that: The height connection device further comprises a bottom frame (200) fixedly connected to the outer end of the load-bearing beam (110); the bottom frame (200) comprises a stabilizing frame connecting the ends of two adjacent load-bearing beams (110).

4. A connecting device according to claim 3, characterized in that: The stabilizing frames form a square therebetween.

5. A connecting device according to claim 4, characterized in that: A shoulder pole assembly (300) is provided at the upper end of the heightening device; the shoulder pole assembly (300) comprises two shoulder pole beams (310) arranged vertically, and the intersection of the two shoulder pole beams (310) and the intersection of the two load-bearing beams (110) are arranged on the same vertical line.

6. The connecting device according to claim 5, characterized in that: Observed from a longitudinal perspective, one end of the shoulder beam (310) protrudes, and the main body of the height-connecting device is distributed between the ends of two adjacent load-bearing beams (110).

7. The connecting device according to claim 5, characterized in that: A square working platform (400) is connected and arranged below the shoulder pole assembly (300); the shoulder pole beam (310) protrudes, and the main body of the heightening device is arranged at the four corners of the working platform (400).

8. The connecting device according to any one of claims 3 to 7, characterized in that: The connecting device further comprises a connecting frame (500), wherein the connecting frame (500) comprises a longitudinal beam (510) connected to the load-bearing assembly (100) and / or the bottom frame (200), and at least two groups of support frames (520) arranged parallel to the two load-bearing beams (110); the ends of the support frames (520) are connected to the inner walls of the longitudinal beams (510).

9. The connecting device according to claim 8, characterized in that: The longitudinal beams (510) are arranged in four pieces, and a reinforcing support (530) is provided between two adjacent longitudinal beams (510); the reinforcing support (530) is arranged horizontally or obliquely.

10. The connecting device according to claim 9, characterized in that: The longitudinal beam (510) is arranged on the load-bearing component (100); a square top frame (600) is arranged on the upper end of the connecting frame (500); and the center points of the top frame (600) and the bottom frame (200) are on the same vertical line.

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