Steel arch closure section lifting device

Abstract

The utility model discloses a steel arch closure section lifting device, and relates to the technical field of steel structure construction. The utility model provides a lifting device for a closure section of a steel arch. The lifting device comprises a lifting bracket, a lifting beam, a lifting lug and a lifting oil cylinder, the lifting bracket is vertically arranged at the top of the closure section; the lifting beam is horizontally arranged at the top of the lifting bracket; the lifting lug is connected to the top of the closure section; the lifting oil cylinder is arranged at the top of the lifting beam; in the vertical direction, the lifting oil cylinder is opposite to and connected with the lifting lug. In the embodiment provided by the utility model, the closure section of the steel arch is lifted to the mounting position through conversion of a plurality of stress systems such as the lifting bracket, the lifting beam and the lifting oil cylinder. The device is convenient to construct, low in construction cost, wide in application range and beneficial to lifting of the closure section in a limited space.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure construction, and more specifically to a steel arch closing section lifting device. Background Art

[0002] Steel arch is a common structural form, which is characterized by its arc shape and mainly bears loads through axial pressure. This structural form has a strong spanning capacity, so it is widely used in occasions where a large space needs to be spanned. Steel arches are usually formed by processing steel or steel plates, and can be designed into different shapes and sizes according to actual needs. In underground projects, steel arches are often used for support, called steel arch support, to enhance the stability and safety of the project. In addition, steel arches can also be used in bridge construction, tunnel construction and other occasions that require large span structures.

[0003] In the prior art, in the field of lifting construction of steel arches and their components, traditional lifting requires the use of portal gantry cranes or large crawler cranes. However, for cross-river construction scenarios, the working site is limited, the flow and positioning of steel arch components are difficult to control, and the components are high, resulting in high operating costs. Utility Model Content

[0004] In view of this, the utility model provides a steel arch closing section lifting device, which can accurately lift the closing section in a restricted area.

[0005] The utility model provides a steel arch closing section lifting device, which is arranged at the top of the closing section and is characterized by comprising: a lifting bracket, a lifting beam, a lifting lug and a lifting cylinder;

[0006] The lifting bracket is vertically arranged on the top of the closing section, and the lifting beam is horizontally arranged on the top of the lifting bracket;

[0007] The lifting lug is connected to the top of the folding section, and the lifting cylinder is arranged on the top of the lifting beam;

[0008] In the vertical direction, the lifting cylinder is opposite to and connected to the lifting eye.

[0009] In a possible implementation, the lifting bracket includes vertical columns arranged in parallel and a support beam connected between the columns;

[0010] The support beams are horizontally and / or obliquely connected between the columns.

[0011] In a possible implementation, the column and the lifting beam are perpendicular to each other, and a connecting plate is further provided at the end of the column connected to the lifting beam;

[0012] The top of the connecting plate is connected to the bottom of the lifting beam, and the side wall of the connecting plate is connected to the side wall of the column.

[0013] In a possible implementation, a positioning hole is formed at one end of the lifting beam close to the symmetry center of the closing section, and the lifting cylinder is disposed in the positioning hole;

[0014] A pad is provided between the lifting cylinder and the lifting beam.

[0015] In a possible implementation, two lifting cylinders are provided at one end of any lifting beam close to the symmetry center of the closing section.

[0016] In a possible implementation, a side wall of the lifting beam where the lifting cylinder is located is provided with a stiffening plate.

[0017] In a possible implementation, the closing section includes a vault plate and a soffit plate that are vertically connected;

[0018] The lifting lugs and the columns are both connected to the dome plate.

[0019] In a possible implementation, the arch plate is connected with a top plate longitudinal rib, and the top plate longitudinal rib is arranged on the inner side of the arch plate and vertically connected to the arch plate;

[0020] The soffit plate is connected with a web longitudinal rib, and the web longitudinal rib is arranged on the inner side of the soffit plate and vertically connected with the soffit plate.

[0021] In a possible implementation, the steel arch closing section lifting devices include at least two, both connected to the top of the closing section.

[0022] In a possible implementation, the steel arch closing section lifting device is arranged at the location where the bending moment of the closing section is maximum.

[0023] Compared with the prior art, the present invention provides at least the following beneficial effects:

[0024] In the embodiment provided by the utility model, the closing section of the steel arch is lifted to the installation position by converting multiple force systems such as the lifting bracket, the lifting beam and the lifting cylinder. The utility model is convenient to construct, has low construction cost, wide application range, and is conducive to lifting the closing section in a confined space.

[0025] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time.

[0026] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0028] Figure 1 A schematic diagram of the structure of the steel arch provided by the utility model;

[0029] Figure 2 This is a schematic diagram of the application of the steel arch closing section lifting device provided by the utility model;

[0030] Figure 3 This is a front view structural schematic diagram of the steel arch closing section lifting device provided by the utility model;

[0031] Figure 4 A side structural schematic diagram of a steel arch closing section lifting device provided by the utility model;

[0032] Figure 5 The utility model is provided with a side view of the closing section structure schematic diagram. DETAILED DESCRIPTION

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0036] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0037] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0038] The utility model embodiment provides a steel arch closing section lifting device, referring to Figure 1 So and Figure 2As shown, the steel arch 10 includes a left side steel arch 11, a right side steel arch 12 and a closing section 13. After the left side steel arch 11 and the right side steel arch 12 are put into place by vertical rotation, the steel arch closing section lifting device lifts the closing section 13 into place and connects it with the side steel arch 11 and the right side steel arch 12.

[0039] Specifically, the steel arch closing section lifting device is arranged at the top of the closing section 13, and the steel arch closing section lifting device includes at least two devices, which are respectively arranged at the maximum bending moment of the closing section 13, so that the closing section 13 can be lifted smoothly.

[0040] Further, the lifting device for the closing section of the steel arch comprises: a lifting bracket 30, a lifting beam 40, a lifting lug 50 and a lifting cylinder 60;

[0041] The lifting bracket 30 is vertically arranged on the top of the closing section 13, and the lifting beam 40 is horizontally arranged on the top of the lifting bracket 30;

[0042] The lifting lug 50 is connected to the top of the closing section 13, and the lifting cylinder 60 is arranged on the top of the lifting beam 40;

[0043] In the vertical direction, the lifting cylinder 60 is opposite to and connected to the lifting eye 50 .

[0044] It is understandable that the lifting bracket 30 is composed of a variety of straight seam steel pipes with different diameters according to the force of each cross section. The lifting beam 40 is arranged on the lifting bracket 30. According to the actual application scenario, longitudinal stiffening ribs can be arranged at the position where the lifting beam 40 is subjected to a large vertical force and a large bending moment, so as to effectively resist the steel plate fatigue strength of the joint section 13 being reduced due to the large force, and ensure the safety factor of the construction process. The lifting cylinder 60 is arranged on the lifting beam 40, and correspondingly, the lifting lug 50 is arranged on the closing section 13. The lifting lug 50 is connected to the lifting cylinder 60. The main function of the lifting bracket 30 is to transfer the deadweight of the joint section 13 from the lifting bracket 30 and the lifting beam 40 to the steel arch 10 through the lifting of the lifting cylinder 60, and then to the tower and the anchor by the rigid twist. In addition, the closing section 13 monitors the steel arch by monitoring the offset of the tower and the anchor during the lifting process to ensure the linear control of the steel arch during the vertical rotation process.

[0045] Specifically, the promotion process is as follows:

[0046] 1. Welding the lifting bracket 30 and the lifting beam 40;

[0047] 2. Hoist the lifting bracket 30 to the dragon mouth of the closing section 13 and weld it;

[0048] 3. Place the lifting cylinder 60 on the lifting beam 40 and weld it;

[0049] 4. Welding the lifting lug 50 on the closing section 13;

[0050] 5. Use the pin to install the lifting lug 50 and the conversion structure.

[0051] In the embodiment provided by the utility model, the closing section of the steel arch is lifted to the installation position by converting multiple force systems such as the lifting bracket, the lifting beam and the lifting cylinder. The utility model is convenient to construct, has low construction cost, wide application range, and is conducive to lifting the closing section in a confined space.

[0052] In an optional embodiment provided by the present utility model, referring to Figure 3 As shown, the lifting bracket 30 includes vertical columns 31 arranged in parallel and a support beam 32 connected between the columns 31;

[0053] The support beams 32 are connected between the columns 31 horizontally and / or obliquely.

[0054] The column 31 and the lifting beam 40 are perpendicular to each other, and the end of the column 31 connected to the lifting beam 40 is also provided with a connecting plate 33;

[0055] The top of the connecting plate 33 is connected to the bottom of the lifting beam 40 , and the side wall of the connecting plate 33 is connected to the side wall of the column 31 .

[0056] A positioning hole is provided at one end of the lifting beam 40 close to the symmetric center of the closing section 13, and the lifting cylinder 60 is arranged in the positioning hole;

[0057] A pad 61 is provided between the lifting cylinder 60 and the lifting beam 40 .

[0058] A stiffening plate 62 is provided on the side wall of the lifting beam 40 where the lifting cylinder 60 is located.

[0059] It is understandable that the column 31 and the support beam 32 of the lifting bracket 30 can be assembled and welded on site, and the full welding method is adopted. The support beam 32 can strengthen the lifting bracket 30. The lifting beam 40 is welded in the form of a double beam, and the force is reasonable. A connecting plate 33 is provided between the column 31 and the lifting beam 40. At the same time, the column 31 and the closing section 13 can also be connected by a connecting plate 33. The connecting plate 33 can improve the connection strength between the lifting bracket 30 and the lifting beam 40 and the closing section 13. During the construction process of the lifting bracket 30 and the lifting beam 40, it should be ensured that the spatial coordinates of the lifting bracket 30 are consistent with the design.

[0060] Furthermore, a positioning hole is provided at one end of the lifting beam 40 close to the symmetric center of the closing section 13, and a lifting cylinder 60 is installed. A pad 61 is provided between the lifting cylinder 60 and the lifting beam 40 for support, and the pad 61 is fully welded around. Since the steel arch closing section lifting device is arranged at the maximum bending moment of the closing section 13, a stiffening plate 62 can also be provided on the side wall of the lifting beam 40 to enhance the strength of the device.

[0061] In an optional embodiment provided by the utility model, referring to Figure 4 As shown, two lifting cylinders 60 are provided at one end of any lifting beam 40 close to the symmetry center of the closing section 13 .

[0062] The closing section 13 has a certain width, so a lifting cylinder 60 is provided along the opposite edges of the closing section 13. Two steel arch closing section lifting devices are provided on the closing section 13, that is, the closing section 13 is lifted together by four lifting cylinders 60, which can ensure a smooth lifting process and improve construction safety.

[0063] In an optional embodiment provided by the present utility model, referring to Figure 5 As shown, the closing section 13 includes a dome plate 131 and a soffit plate 132 that are vertically connected;

[0064] The lifting lugs 50 and the columns 31 are both connected to the dome plate 131 .

[0065] The arch plate 131 is connected with a top plate longitudinal rib 133, and the top plate longitudinal rib 133 is arranged on the inner side of the arch plate 131 and vertically connected to the arch plate 131;

[0066] The soffit plate 132 is connected with a web longitudinal rib 134 . The web longitudinal rib 134 is disposed on the inner side of the soffit plate 132 and is vertically connected to the soffit plate 132 .

[0067] It can be understood that the steel structure of the folding section 13 includes a vault plate 131 and a soffit plate 132, wherein the vault plate 131 is arranged at the top, and the lifting lugs 50 and the columns 31 are connected to the vault plate 131. The vault plate 131 and the soffit plate 132 are both connected to the reinforcing structure, the vault plate 131 is connected to the top plate longitudinal ribs 133, and the soffit plate 132 is connected to the web plate longitudinal ribs 134.

[0068] In summary, the steel arch closing section lifting device provided by the utility model achieves at least the following beneficial effects:

[0069] In the embodiment provided by the utility model, the closing section of the steel arch is lifted to the installation position by converting multiple force systems such as the lifting bracket, the lifting beam and the lifting cylinder. The utility model is convenient to construct, has low construction cost, wide application range, and is conducive to lifting the closing section in a confined space.

[0070] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A steel arch closing section lifting device, arranged at the top of the closing section, characterized in that: include: lifting brackets, lifting beams, lifting eyes and lifting cylinders; The lifting bracket is vertically arranged on the top of the closing section, and the lifting beam is horizontally arranged on the top of the lifting bracket; The lifting lug is connected to the top of the folding section, and the lifting cylinder is arranged on the top of the lifting beam; In the vertical direction, the lifting cylinder is opposite to and connected to the lifting eye.

2. The steel arch closing section lifting device according to claim 1 is characterized in that: The lifting bracket includes vertical columns arranged in parallel and a support beam connected between the columns; The support beams are horizontally and / or obliquely connected between the columns.

3. The steel arch closing section lifting device according to claim 2 is characterized in that: The column and the lifting beam are perpendicular to each other, and the end of the column connected to the lifting beam is also provided with a connecting plate; The top of the connecting plate is connected to the bottom of the lifting beam, and the side wall of the connecting plate is connected to the side wall of the column.

4. The steel arch closing section lifting device according to claim 1 is characterized in that: A positioning hole is provided at one end of the lifting beam close to the symmetric center of the closing section, and the lifting cylinder is arranged in the positioning hole; A pad is provided between the lifting cylinder and the lifting beam.

5. The steel arch closing section lifting device according to claim 4 is characterized in that: Two lifting cylinders are provided at one end of any lifting beam close to the symmetry center of the closing section.

6. The steel arch closing section lifting device according to claim 4 is characterized in that: A stiffening plate is provided on the side wall of the lifting beam where the lifting cylinder is located.

7. The steel arch closing section lifting device according to claim 2 is characterized in that: The closing section includes a vault plate and a soffit plate connected vertically; The lifting lugs and the columns are both connected to the dome plate.

8. The steel arch closing section lifting device according to claim 7 is characterized in that: The arch plate is connected with a top plate longitudinal rib, and the top plate longitudinal rib is arranged on the inner side of the arch plate and vertically connected to the arch plate; The soffit plate is connected with a web longitudinal rib, and the web longitudinal rib is arranged on the inner side of the soffit plate and vertically connected with the soffit plate.

9. The steel arch closing section lifting device according to claim 1, characterized in that: The steel arch closing section lifting devices include at least two, both of which are connected to the top of the closing section.

10. The steel arch closing section lifting device according to claim 9, characterized in that: The steel arch closing section lifting device is arranged at the position where the bending moment of the closing section is the largest.

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