Integral in-situ lifting sling for steel structure corridor

Abstract

The utility model relates to the technical field of building steel structure installation, and discloses a steel structure corridor integral in-situ lifting sling, which comprises a sling main body, one end of the sling main body is fixedly connected with the outer side wall of a steel structure corridor lower chord member, and a temporary reinforcing rod is arranged above the steel structure corridor lower chord member corresponding to the joint. The lower end of the temporary reinforcing rod is fixedly connected with the upper surface of the steel structure corridor lower chord member, and the upper end of the temporary reinforcing rod is fixedly connected with the corresponding steel structure corridor diagonal web member on the upper side; a round hole for a steel strand in the hydraulic lifter to penetrate through from top to bottom is formed in one end, far away from the steel structure corridor, of the lifting appliance main body, and a ground anchor capable of clamping and fixing the end of the steel strand is further mounted on the lifting appliance main body below the round hole; the lifting appliance main body needs to extend out of the projection of the steel structure corridor, and the lifting appliance main body cannot be shielded by an upper chord of the steel structure corridor. According to the utility model, through the design of the lower chord lifting appliance, conditions are created for integrally lifting the steel structure corridor in a narrow space.

Description

A steel structure connecting corridor integral in-situ lifting hoist Technical Field

[0001] This utility model relates to the field of building steel structure installation technology, and more specifically, to an overall in-situ lifting device for steel structure corridors. Background Technology

[0002] At present, steel structure corridors are mostly installed by in-situ overall lifting, and the design of the lifting points during the overall lifting process is of paramount importance to ensure the implementation of the entire plan.

[0003] Typically, lifting points are located on the main body of the steel structure corridor. However, to avoid obstructing the movement of the steel strands, these lifting points are usually located on the upper chord of the corridor. This lifting point design requires that the distance from the steel strand anchor point to the hydraulic lifter be greater than the structural height of the steel structure corridor itself to ensure its smooth lifting to the installation position. This places high demands on sufficient space for the installation of the lifting support. At the same time, the higher the lifting support itself, the more difficult it is to guarantee stability.

[0004] Therefore, under the current circumstances, it is necessary to provide an in-situ lifting device for the entire steel structure corridor that will not affect the installation of the steel strands and has no requirements on the height of the lifting support, in order to solve the above problems. Summary of the Invention

[0005] In view of this, this utility model proposes an overall in-situ lifting device for steel structure corridors, the specific technical solution of which is as follows:

[0006] A lifting device for an integral in-situ lifting system of a steel structure corridor is installed on the steel structure corridor and used in conjunction with a hydraulic lifter installed on the pre-assembled structure of the steel structure corridor. The device includes a main body, one end of which is fixedly connected to the outer wall of the lower chord of the steel structure corridor. A temporary reinforcing rod is installed above the lower chord of the steel structure corridor at the corresponding connection point. The lower end of the temporary reinforcing rod is fixedly connected to the upper surface of the lower chord of the steel structure corridor, and the upper end of the temporary reinforcing rod is fixedly connected to the corresponding upper diagonal brace of the steel structure corridor. A circular hole is provided on the end of the main body of the lifting device away from the steel structure corridor, through which a steel strand from the hydraulic lifter passes from top to bottom. A ground anchor is also installed on the main body of the lifting device below the circular hole to secure the end of the steel strand. The main body of the lifting device needs to extend outward beyond the projection of the steel structure corridor, ensuring that it is not obstructed by the upper chord of the steel structure corridor.

[0007] Preferably, the main body of the lifting device adopts a box girder structure.

[0008] Preferably, the size of the circular hole is determined according to the number of steel strands, so as to allow the steel strands to pass through smoothly without contacting the inner wall of the circular hole on the main body of the lifting device.

[0009] Preferably, a liner plate with the same opening is fixed on the main body of the lifting device below the circular hole, the ground anchor is installed on the bottom surface of the liner plate, and when fixing the steel strand, the ground anchor is pressed onto the liner plate.

[0010] Preferably, the main body of the lifting device and the temporary reinforcing rod are both fixedly connected to the lower chord of the steel structure corridor by welding, and the upper end of the temporary reinforcing rod is also welded and fixedly connected to the corresponding diagonal web member of the steel structure corridor on the upper side.

[0011] Preferably, the lower end of the temporary reinforcing rod is welded and fixed to the main body of the lifting device. At the same time, a sealing plate 1 for sealing the corresponding port is welded at the position where the lower end of the temporary reinforcing rod extends horizontally beyond the lower chord of the steel structure corridor, and a sealing plate 2 for sealing the corresponding port is welded at the position where the upper end of the temporary reinforcing rod extends horizontally beyond the diagonal web member.

[0012] Compared with existing technologies, the in-situ lifting device for an integral steel structure corridor of this utility model has the following advantages:

[0013] (1) The lifting device body in the lifting device structure of this utility model is connected to the lower chord of the steel structure corridor in the form of a corbel, and the lifting device body extends out of the projection of the steel structure corridor and will not be blocked by the upper chord of the corridor. Therefore, it will not affect the operation of the steel strand during the lifting process.

[0014] (2) The lifting device structure of this utility model can effectively fix the steel strand by drilling holes in the main body of the lifting device, and the steel strand is fixed at the end by ground anchor buckle after passing through. It can also ensure that the steel strand is subjected to vertical force.

[0015] (3) Based on the installation of the main body of the lifting device, the present utility model also adds a temporary reinforcing rod depending on the structure of the steel structure corridor and the location of the lifting point. The upper end of the temporary reinforcing rod is connected to the diagonal web of the steel structure corridor, and the lower end is welded to the lower chord of the steel structure corridor. The temporary reinforcing rod plays the role of transmitting the force.

[0016] (4) The lifting device structure of this utility model has the strength and rigidity after verification, which can meet the load requirements during the lifting process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 is a front view of the overall in-situ lifting device for a steel structure corridor according to this utility model.

[0019] Figure 2 is a front view of the installation of an integral in-situ lifting device for a steel structure corridor according to this utility model.

[0020] Figure 3 is an installation side view of the overall in-situ lifting hoist of a steel structure corridor according to this utility model.

[0021] Figure 4 is a top view of the installation of an integral in-situ lifting device for a steel structure corridor according to this utility model.

[0022] Figure 5 is a structural schematic diagram of the lifting device body in this utility model.

[0023] Figure 6 shows the installation and use diagram of this utility model.

[0024] Figure 7 is an enlarged schematic diagram of the structure indicated at point A in Figure 6.

[0025] In the diagram: 1-Lifting device body, 101-Round hole, 2-Temporary reinforcing rod, 3-Ground anchor, 4-Liner plate, 5-Edge sealing plate one, 6-Edge sealing plate two, 7-Steel structure corridor, 701-Lower chord of steel structure corridor, 702-Diagonal web member of steel structure corridor, 8-Pre-assembled structure of steel structure corridor, 9-Hydraulic lifter, 901-Steel strand. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Example:

[0030] As shown in Figures 1-7, this embodiment provides an overall in-situ lifting device for a steel structure corridor, which is installed on the steel structure corridor 6 and used in conjunction with a hydraulic lifter 8 installed on the pre-assembled structure 7 of the steel structure corridor.

[0031] The in-situ lifting device for the steel structure corridor includes a lifting device body 1. One end of the lifting device body 1 is fixedly connected to the outer wall of the lower chord 601 of the steel structure corridor. At the same time, a temporary reinforcing rod 2 is installed above the lower chord 601 of the steel structure corridor at the corresponding connection point. The lower end of the temporary reinforcing rod 2 is fixedly connected to the upper surface of the lower chord 601 of the steel structure corridor, and the upper end of the temporary reinforcing rod 2 is fixedly connected to the upper side of the diagonal web member 602 of the steel structure corridor. A circular hole 101 is opened on the end of the lifting device body 1 away from the steel structure corridor 6, through which the steel strand 801 in the hydraulic lifter 8 passes from top to bottom. A ground anchor 3 is also installed on the lifting device body 1 below the circular hole 101 to secure the end of the steel strand. The lifting device body 1 needs to extend outward beyond the projection of the steel structure corridor, and should be designed so as not to be obstructed by the upper chord of the steel structure corridor 6.

[0032] In this utility model, the lifting device body 1 is connected to the lower chord 601 of the steel structure corridor in the form of a corbel. The lifting device body 1 extends beyond the projection of the steel structure corridor and will not be blocked by the upper chord of the corridor. Therefore, it will not affect the setting of the steel strand 801, nor will it affect the operation of the steel strand 801 during the lifting process. Furthermore, there are no requirements for the height of the lifting support.

[0033] Meanwhile, the lifting device structure of this utility model can effectively fix the steel strand 801 by drilling holes in the lifting device body 1, passing the steel strand 801 through, and fixing it at the end with a ground anchor 3 buckle, so as to ensure that the steel strand 801 will not fall off or shift during use, and to ensure that the steel strand 801 is subjected to vertical force.

[0034] In this embodiment, based on the installation of the main body 1 of the lifting device, a temporary reinforcing rod 2 is added depending on the structure of the steel structure corridor itself and the location of the lifting points. The upper end of the temporary reinforcing rod 2 is connected to the diagonal web member 602 of the steel structure corridor, and the lower end is connected to the lower chord member 601 of the steel structure corridor. The temporary reinforcing rod 2 plays the role of transmitting the force.

[0035] In a further specific embodiment, the lifting device body 1 is made of steel plate by submerged arc welding, and the lifting device body 1 adopts a box beam structure, which has good stress conditions.

[0036] In a further specific embodiment, the size of the circular hole 101 on the lifting device body 1 is determined according to the number of steel strands, so as to ensure that the steel strands 801 pass through smoothly and do not contact the inner wall of the circular hole on the lifting device body 1, so as to prevent friction damage and other situations.

[0037] Meanwhile, a liner plate 4 with the same opening can be further welded and fixed on the main body 1 of the lifting device below the circular hole 101. The ground anchor 3 is installed on the bottom surface of the liner plate 4. In this way, when fixing the steel strand 801, the ground anchor 3 can be pressed onto the liner plate 4 to enhance the strength of the main body 1 of the lifting device.

[0038] In this embodiment, the lifting device body 1 is connected to the lower chord 601 of the steel structure corridor by welding. More specifically, the lifting device body 1 is connected to the lower chord 601 of the steel structure corridor by bevel full penetration welding, and the weld is equal strength welding.

[0039] The lower end of the temporary reinforcing rod 2 is connected to the lower chord 601 of the steel structure corridor by welding, and the upper end of the temporary reinforcing rod 2 is also connected to the corresponding upper steel structure corridor diagonal web member 602 by welding.

[0040] In a further specific embodiment, the lower end of the temporary reinforcing rod 2 is welded and fixed to the main body 1 of the lifting device. At the same time, a sealing plate 5 for sealing the corresponding port is welded at the position where the lower end of the temporary reinforcing rod extends horizontally beyond the lower chord 601 of the steel structure corridor. A sealing plate 6 for sealing the corresponding port is welded at the position where the upper end of the temporary reinforcing rod extends horizontally beyond the diagonal web member 602 of the steel structure corridor. The installation of the sealing plate can prevent impurities, sewage and other substances from entering the interior of the temporary reinforcing rod 2, thereby ensuring the service life of the temporary reinforcing rod 2.

[0041] The installation process of the lifting device structure of this utility model is as follows:

[0042] 1) The main body 1 of the lifting device is made of steel plate by submerged arc welding. At the same time, a circular hole 101 is made on the main body 1 of the lifting device for the steel strand 801 to pass through. The size of the circular hole 101 is determined according to the number of steel strands to ensure that the steel strand 801 passes through smoothly and does not contact the inner wall of the circular hole on the main body 1 of the lifting device. Then, a fixing plate 4 is welded below the circular hole 101 made on the main body 1 of the lifting device.

[0043] 2) The main body 1 of the lifting device is connected to the outer wall of the lower chord 601 of the steel structure corridor by bevel full penetration welding, and the weld is equal strength welding;

[0044] 3) Depending on the structure of the steel structure corridor 6 and the location of the suspension points, add temporary reinforcing rods 2. Weld the upper end of the temporary reinforcing rods 2 to the diagonal web members 602 of the steel structure corridor, and weld the lower end to the lower chord member 601 of the steel structure corridor, so that the temporary reinforcing rods 2 can play the role of transmitting force; at the same time, weld the edge sealing plate 1 5 at the position where the lower end of the temporary reinforcing rod extends horizontally beyond the lower chord member of the steel structure corridor, and weld the edge sealing plate 2 6 at the position where the upper end of the temporary reinforcing rod extends horizontally beyond the diagonal web members 602 of the steel structure corridor.

[0045] 4) After the above work is completed, steel strand 801 can be threaded and ground anchor 3 can be installed.

[0046] During the lifting operation, the steel strand 801 passes through the round hole 101 on the main body 1 of the lifting device and is then fixed in place by the ground anchor 3. The structure of the ground anchor in this utility model is existing technology, and the installed ground anchor is purchased directly. For specific details, please refer to the anchoring device schemes disclosed in patents such as CN103104069A and CN111197384A.

[0047] In this embodiment, the plate specifications of the temporary reinforcing rod 2 and the main body of the lifting device 1 need to be designed after lifting force calculation and analysis. At the same time, the thickness of the lining plate 4 and the edge sealing plate is the same as the plate specifications of the main body of the lifting device 1.

[0048] The lifting device structure of this utility model has verified strength and rigidity, which can meet the load requirements during the lifting process. Through the design of the lower chord lifting device, it creates conditions for the overall lifting of steel structure corridors in narrow spaces.

[0049] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0050] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. 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 the present invention. Therefore, the present invention is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steel structure connecting corridor integral in-situ lifting hoist, installed on the steel structure connecting corridor, and used in conjunction with a hydraulic lifting device installed on the pre-assembled structure of the steel structure connecting corridor; characterized in that, The system includes a lifting device body, one end of which is fixedly connected to the outer wall of the lower chord of the steel structure corridor. A temporary reinforcing rod is installed above the lower chord of the steel structure corridor at the corresponding connection point. The lower end of the temporary reinforcing rod is fixedly connected to the upper surface of the lower chord of the steel structure corridor, and the upper end of the temporary reinforcing rod is fixedly connected to the upper diagonal brace of the steel structure corridor. A circular hole is provided on the end of the lifting device body away from the steel structure corridor, through which the steel strand in the hydraulic lifter passes from top to bottom. A ground anchor is also installed on the lifting device body below the circular hole to secure the end of the steel strand. The lifting device body must extend outward beyond the projection of the steel structure corridor, ensuring it is not obstructed by the upper chord of the steel structure corridor.

2. The in-situ lifting device for a steel structure connecting corridor according to claim 1, characterized in that, The main body of the lifting device adopts a box girder structure.

3. The in-situ lifting device for a steel structure connecting corridor according to claim 1, characterized in that, The size of the circular hole is determined based on the number of steel strands, with the aim of allowing the steel strands to pass through smoothly without contacting the inner wall of the circular hole on the main body of the lifting device.

4. The in-situ lifting device for a steel structure connecting corridor according to claim 1, characterized in that, A liner plate with the same opening is fixed on the main body of the lifting device below the circular hole. The ground anchor is installed on the bottom surface of the liner plate, and when fixing the steel strand, the ground anchor is pressed onto the liner plate.

5. The in-situ lifting device for an integral steel structure corridor according to claim 1, characterized in that, The main body of the lifting device and the temporary reinforcing rod are all fixedly connected to the lower chord of the steel structure corridor by welding. The upper end of the temporary reinforcing rod is also welded and fixedly connected to the corresponding diagonal web member of the steel structure corridor on the upper side.

6. The in-situ lifting device for a steel structure corridor according to claim 1, characterized in that, The lower end of the temporary reinforcing rod is welded and fixed to the main body of the lifting device. At the same time, a sealing plate 1 for sealing the corresponding port is welded at the position where the lower end of the temporary reinforcing rod extends horizontally beyond the lower chord of the steel structure corridor. A sealing plate 2 for sealing the corresponding port is welded at the position where the upper end of the temporary reinforcing rod extends horizontally beyond the diagonal web member.

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