Large-span space torsional steel arch corridor support unloading device

Abstract

The utility model belongs to building construction auxiliary equipment technical field especially relates to a large -span space twist steel arch corridor support unloading device, including support frame and box type support base, the top of box type support base is connected with the adjusting short column, the top fixed connection of adjusting short column has conversion steel sheet, the top of conversion steel sheet is connected with sectional steel sheet, the side fixed connection of box type support base has support short column. This large -span space twist steel arch corridor support unloading device, through conversion steel sheet adopts sectional spare part design, greatly promoted the field assembly efficiency. Compared with traditional integral steel sheet, sectional spare part is more convenient for transportation and installation, can be quickly spliced in construction site, reduces the installation time, adopts the modularization welding technology, can adapt to the accuracy requirement of complex space twist surface. Every sectional steel sheet can be positioned and adjusted accurately before welding, ensures that the overall structure after welding meets the design requirement, improves the installation accuracy.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for building construction, specifically a large-span spatial torsion steel arch corridor support unloading device. Background Technology

[0002] In modern architectural engineering, the application of large-span spatial torsional steel arch corridors is becoming increasingly widespread, as their unique structural form brings both aesthetic and practical value to buildings. However, the support and unloading technology faces many challenges during the construction of steel arch corridors. Existing technologies for support and unloading of large-span spatial torsional steel arch corridors have significant shortcomings.

[0003] Low construction efficiency: The inability to quickly position and unload the supports leads to a longer construction cycle, increasing both construction and time costs. For example, traditional support devices require a significant amount of time for measurement and adjustment during positioning, making it difficult to quickly and accurately determine the support position. Taking patent document CN222391087U, "A Support Frame Unloading Device for a Large-Span Steel Structure Corridor," as an example, although the device can adjust its height, its operation is cumbersome. When facing the complex spatial structure of a large-span, twisted steel arch corridor, it is difficult to achieve rapid positioning, resulting in low overall construction efficiency.

[0004] Insufficient precision: The adjustment accuracy of traditional support devices is insufficient to meet the high-precision installation requirements of complex spatial structures. The installation of large-span spatial torsional steel arch corridors requires extremely high precision; even slight deviations can affect the stability and safety of the structure, but existing support devices cannot meet such high precision standards.

[0005] Safety Hazards: Existing unloading processes can easily cause structural deformation or stress concentration, affecting structural safety. During unloading, uneven load distribution can easily lead to excessive local stress on the steel arch corridor, resulting in deformation or even damage, posing safety hazards for subsequent use. Utility Model Content

[0006] The purpose of this invention is to provide a large-span spatial torsional steel arch corridor support unloading device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a large-span spatial torsional steel arch corridor support unloading device, comprising a support frame and a box-shaped support base disposed on the top of the support frame, an adjusting short column connected to the top of the box-shaped support base, a conversion steel plate fixedly connected to the top of the adjusting short column, a segmented steel plate connected to the top of the conversion steel plate, a supporting short column fixedly connected to the side of the box-shaped support base, and a graded unloading device disposed on the upper side of the supporting short column, the segmented steel plates forming a box body, and a steel pipe arch disposed on the top of the box body.

[0008] Preferably, the segmented steel plates at the top of the conversion steel plate are prefabricated in sections, and are supported and welded on site in order from the lowest point to the highest point to form a box structure.

[0009] Preferably, the adjusting short column adopts an adjustable design, and the height can be finely adjusted through a threaded connection. Furthermore, the adjusting short column and the conversion steel plate are connected by a universal joint to achieve angle adjustment.

[0010] Preferably, the staged unloading device is a hydraulic jack installed on the support column, which gradually reduces the support force by progressively reducing the pressure of the hydraulic jack.

[0011] Preferably, the parts supporting the short column are manufactured according to the three-dimensional detailed model of the steel structure and installed on site in the form of individual parts.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The unloading device for the large-span spatial torsion steel arch corridor supports significantly improves on-site assembly efficiency by adopting a segmented, modular design for the conversion steel plates. Compared to traditional monolithic steel plates, the segmented components are easier to transport and install, allowing for rapid assembly on-site and reducing installation time.

[0014] 2. The unloading device for the large-span spatial torsional steel arch corridor adopts a modular welding process, which can adapt to the precision requirements of complex spatial torsional surfaces. Each steel plate can be precisely positioned and adjusted before welding, ensuring that the overall structure after welding meets the design requirements and improving installation accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the supporting unloading device structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the segmented steel plate structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the welding sequence of the segmented steel plates according to this utility model;

[0019] Figure 5 This is a schematic diagram of the on-site construction process of this utility model.

[0020] In the diagram: 1. Support frame; 2. Box-type support base; 3. Adjustable short column; 4. Conversion steel plate; 5. Segmented steel plate; 6. Supporting short column; 7. Steel pipe arch. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 This utility model provides a technical solution: a large-span spatial torsional steel arch corridor support unloading device, including a support frame 1 and a box-shaped support base 2 set on the top of the support frame 1. The top of the box-shaped support base 2 is connected to an adjusting short column 3. The top of the adjusting short column 3 is fixedly connected to a conversion steel plate 4. The top of the conversion steel plate 4 is connected to a segmented steel plate 5. The side of the box-shaped support base 2 is fixedly connected to a support short column 6 and a graded unloading device is set on the upper side of the support short column 6. The segmented steel plates 5 form a box body, and a steel pipe arch 7 is set on the top of the box body.

[0023] The segmented steel plates 5 on top of the conversion steel plate 4 are prefabricated in sections, and are supported and welded on site in order from the lowest point to the highest point to form a box structure.

[0024] The adjusting short column 3 adopts an adjustable design, and the height can be finely adjusted through a threaded connection. The adjusting short column 3 and the conversion steel plate 4 are connected by a universal joint to achieve angle adjustment.

[0025] The staged unloading device consists of hydraulic jacks installed on the supporting short column 6. The supporting force is reduced in stages by gradually decreasing the pressure of the hydraulic jacks. The parts supporting the short column 6 are processed according to the three-dimensional detailed model of the steel structure and installed on site in the form of loose parts.

[0026] In the early stages of construction, the segmented steel plates 5 of the conversion steel plate 4 are pre-processed and then transported to the construction site. Upon arrival, based on the spatial coordinates of the steel arch components, the height and angle of the conversion steel plate are adjusted using the adjusting short columns 3 to ensure precise positioning. Next, the segmented steel plates 5 are installed and welded section by section to form the overall box-shaped support structure. During the unloading phase, precise stress control is achieved through a staged load release method. Specifically, hydraulic jacks are installed on the supporting short columns 6, and the support force is gradually reduced by progressively decreasing the pressure of the jacks, thus preventing sudden structural instability.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A large-span spatial torsional steel arch corridor support unloading device, comprising a support frame (1) and a box-shaped support base (2) disposed on the top of the support frame (1), characterized in that: The top of the box-type support base (2) is connected to an adjusting short column (3), the top of the adjusting short column (3) is fixedly connected to a conversion steel plate (4), the top of the conversion steel plate (4) is connected to a segmented steel plate (5), the side of the box-type support base (2) is fixedly connected to a supporting short column (6), and a graded unloading device is provided on the upper side of the supporting short column (6). The segmented steel plates (5) form a box body, and a steel pipe arch (7) is provided on the top of the box body.

2. The large-span spatial torsional steel arch corridor support unloading device according to claim 1, characterized in that: The segmented steel plates (5) on the top of the conversion steel plate (4) are prefabricated in sections, and are supported and welded on site in order from the lowest point to the highest point to form a box structure.

3. The large-span spatial torsional steel arch corridor support unloading device according to claim 1, characterized in that: The adjusting short column (3) adopts an adjustable design and achieves fine height adjustment through threaded connection. The adjusting short column (3) and the conversion steel plate (4) are connected by a universal joint to achieve angle adjustment.

4. The large-span spatial torsional steel arch corridor support unloading device according to claim 1, characterized in that: The graded unloading device is a hydraulic jack installed on the support short column (6), which gradually reduces the support force by gradually reducing the pressure of the hydraulic jack.

5. The large-span spatial torsional steel arch corridor support unloading device according to claim 1, characterized in that: The parts supporting the short column (6) are manufactured according to the three-dimensional detailed model of the steel structure and installed on site in the form of loose parts.

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