Pipe truss high-altitude assembling upper chord support and construction method thereof

Abstract

A method for constructing a high-altitude assembly upper chord support for a tubular truss, comprising a column support body assembled from a lower column support and an upper column support, with the assembly surface being inclined. The upper column support includes an upper column and an upper column support plate on its top surface. The upper column support plate has a U-shaped slot for fixing the tubular truss, composed of a first T-shaped structural plate and a second T-shaped structural plate. Both the first and second T-shaped structural plates include upright plates and upright plate supports. The tubular truss is fixed between the upright plates of the two T-shaped structural plates. The upright plate supports are connected to the upper column support plate with bolts. Strip holes are provided on the upper column support plate for bolt passage. The spacing between the upright plates of the two T-shaped structural plates can be adjusted according to the diameter of the tubular truss, and the direction of the strip holes corresponds to the direction of movement of the two T-shaped structural plates. This invention simplifies the operation process and ensures assembly accuracy.

Description

Technical Field

[0001] This invention belongs to the field of building construction, specifically relating to a high-altitude assembly upper chord support for a tubular truss and its construction method. Background Technology

[0002] Large-span, three-dimensional steel pipe truss roof structures for various venues, due to their high building density, small spacing between individual buildings, and lack of large assembly areas around the venues, typically employ a high-altitude, piecemeal assembly construction method. During the sliding process of steel pipe trusses using this method, conflicts arise between the chord members and the upper chord support uprights, requiring frequent overall installation and dismantling of the upper chord supports, resulting in complex procedures. During the dismantling of the upper chord supports, the steel pipe truss needs to be lifted and unloaded as a whole, easily leading to quality problems such as localized bending and deformation of the web members. Furthermore, the upper steel pipe support plates typically require multiple processing and fabrication steps, resulting in low material turnover efficiency. These factors negatively impact both construction quality and efficiency. Summary of the Invention

[0003] The purpose of this invention is to address the problems of complex operation and quality impact during the high-altitude assembly of steel pipe trusses in the prior art, and to provide a method for high-altitude assembly of upper chord supports for pipe trusses and its construction, which simplifies the operation process and ensures assembly accuracy.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A high-altitude assembly upper chord support for a tubular truss includes a column support body, which is assembled from a lower column support and an upper column support, with the assembly surface being an inclined plane. The upper column support includes an upper column and an upper column support plate disposed on the top surface of the upper column. The upper column support plate is provided with a U-shaped slot for fixing the tubular truss. The U-shaped slot is composed of a first T-shaped structural plate and a second T-shaped structural plate. Both the first and second T-shaped structural plates include upright plates and upright plate supports. The tubular truss is fixed between the upright plates of the two T-shaped structural plates. The upright plate supports are connected to the upper column support plate by bolts. The upper column support plate has slotted holes for bolts to pass through. The spacing between the upright plates of the two T-shaped structural plates can be adjusted according to the diameter of the tubular truss. The direction of the slotted holes is the direction of movement of the two T-shaped structural plates.

[0006] As a preferred embodiment of the high-altitude assembly upper chord support of the tubular truss of the present invention, the lower column support includes a lower column, a lower column lower support plate horizontally arranged on the bottom surface of the lower column, an upper column upper support plate inclinedly arranged on the top surface of the lower column, and an upper column lower support plate that cooperates with the upper column upper support plate inclinedly arranged on the bottom surface of the upper column.

[0007] As a preferred embodiment of the high-altitude assembly upper chord support of the tubular truss of the present invention, the upper support plate of the lower column and the lower support plate of the upper column are detachably connected by bolts, and the lower support plate of the lower column is connected to the ground by bolts.

[0008] As a preferred embodiment of the high-altitude assembly upper chord support of the tubular truss of the present invention, the lower column is welded to the lower column lower support plate and to the lower column upper support plate, and the upper column is welded to the upper column lower support plate and to the upper column upper support plate.

[0009] As a preferred embodiment of the high-altitude assembly upper chord support of the tubular truss of the present invention, the vertical plates of the first T-shaped structural plate and the second T-shaped structural plate are both connected by welding to their vertical plate supports.

[0010] As a preferred embodiment of the high-altitude assembly upper chord support of the tubular truss of the present invention, stiffening plates are connected between the two sides of the upright plate of the first T-shaped structural plate and the upright plate support plate.

[0011] As a preferred embodiment of the high-altitude assembly upper chord support of the tubular truss of the present invention, the vertical height of the first T-shaped structural plate is higher than that of the second T-shaped structural plate.

[0012] As a preferred embodiment of the high-altitude assembly upper chord support of the tubular truss of the present invention, the upper column support can be connected to the hoisting equipment via ropes.

[0013] The present invention also proposes a construction method based on the high-altitude assembly of the upper chord support of the tubular truss, comprising the following steps:

[0014] The lower column support is arranged according to the truss's own sag, segmentation points, and on-site construction conditions.

[0015] Locate and mark the corresponding bolt hole positions on the lower support plate of the lower column on the lower column support part, and then drill holes.

[0016] Install all lower columns and tighten the connecting bolts;

[0017] Assemble the column support and U-shaped slot on the ground. Adjust the spacing between the two T-shaped structural plates of the U-shaped slot according to the diameter of the tubular truss to meet the assembly requirements.

[0018] Connect the assembled upper column support and U-shaped slot to the lower column support, and fine-tune the spacing between the two T-shaped structural plates of the U-shaped slot to meet the assembly accuracy requirements of the tubular truss.

[0019] After the tubular truss is assembled, the upper chord support is removed. With the upper chord support bearing the weight of the tubular truss itself, ropes are pre-tied to the upper column support of the upper chord support. The ropes are kept taut using hoisting equipment. The bolts between the upper support plate of the lower column and the lower support plate of the upper column are removed, and a horizontal thrust is applied to the lower part of the upper column, causing the upper column to rotate along the contact surface with the center of the tubular truss as the center point. After the relative displacement between the upper support plate of the lower column and the lower support plate of the upper column occurs, the upper column support is lifted off the upper column support using hoisting equipment.

[0020] Remove the lower column support.

[0021] As a preferred embodiment of the construction method of the present invention, when the upper column support is dismantled, it is symmetrically and synchronously dismantled from the middle of the fixed tube truss to both ends of the tube truss. When dismantling the last set of upper column support, the horizontal thrust applied to the upper column is reduced, and the relative displacement speed between the upper support plate of the lower column and the lower support plate of the upper column is slowed down to ensure that the tube truss is subjected to stable force.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects: the upper chord support for the high-altitude assembly of the tubular truss consists of a column support body and a U-shaped slot for fixing the tubular truss. The U-shaped slot consists of a first T-shaped structural plate and a second T-shaped structural plate. The tubular truss is fixed between the uprights of the two T-shaped structural plates. A strip hole is opened on the upper support plate of the upper column for bolts to pass through, so that the distance between the uprights of the two T-shaped structural plates can be adjusted according to the diameter of the tubular truss. This can effectively ensure the assembly accuracy of the tubular truss and improve the turnover efficiency of the materials. The column support body of this invention is assembled from a lower column support and an upper column support, with the assembly surface being an inclined plane. When the upper chord support is disassembled while bearing the load of the upper truss itself, a horizontal thrust is applied to the lower part of the upper column, causing the upper column to rotate along the contact surface with the center of the truss tube as the center point. After relative displacement occurs between the upper support plate of the lower column and the lower support plate of the upper column, it is removed using hoisting equipment. This solves the problem of the need for overall lifting and unloading of the truss during the overall dismantling of the upper chord support in conventional applications, simplifying the operation process. Attached Figure Description

[0023] Figure 1 A schematic diagram of the combined structure of the upper chord support of the high-altitude assembly of the tubular truss of this invention;

[0024] Figure 2 A schematic diagram of the structure of the lower column support part of the present invention;

[0025] Figure 3 A schematic diagram of the structure of the upper column support part of the present invention;

[0026] Figure 4 A schematic diagram of the structure of the U-shaped slot portion of the present invention;

[0027] In the attached diagram: 1-Lower column support; 2-Upper column support; 3-U-shaped slot; 4-Tubular truss; 5-Lower column lower support plate; 6-Lower column; 7-Lower column upper support plate; 8-Upper column lower support plate; 9-Upper column; 10-Upper column upper support plate; 11-Upright plate support plate; 12-Stiffening plate; 13-First T-shaped structural plate upright plate; 14-Second T-shaped structural plate upright plate. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] See Figure 1 This invention proposes a high-altitude assembly upper chord support for a tubular truss, comprising a column support body, which is assembled from a lower column support part 1 and an upper column support part 2, with the assembly surface being an inclined plane; the top of the upper column support part 2 is provided with a U-shaped slot part 3 for fixing the tubular truss 4. See also Figure 2 , Figure 3 The upper column support 2 includes an upper column 9 and an upper column support plate 10 disposed on the top surface of the upper column 9. The upper column support plate 10 is provided with a U-shaped slot 3 for fixing the tubular truss 4. The lower column support 1 includes a lower column 6. A lower column support plate 5 is horizontally disposed on the bottom surface of the lower column 6, and a lower column support plate 7 is inclinedly disposed on the top surface of the lower column 6. An upper column support plate 8 that cooperates with the lower column support plate 7 is inclinedly disposed on the bottom surface of the upper column 9. The lower column support plate 7 and the upper column support plate 8 are detachably connected by bolts. The lower column support plate 5 is connected to the ground by bolts. The lower column 6 is welded to the lower column support plate 5 and the lower column support plate 7, and the upper column 9 is welded to the upper column support plate 8 and the upper column support plate 10.

[0030] See Figure 4 The U-shaped slot section 3 consists of a first T-shaped structural plate and a second T-shaped structural plate. Both the first and second T-shaped structural plates include uprights and upright support plates 11. A tubular truss is fixed between the uprights of the two T-shaped structural plates. The upright support plate 11 is connected to the upper column support plate 10 by bolts. A slotted hole is provided on the upper column support plate 10 for the bolts to pass through. The distance between the uprights of the two T-shaped structural plates can be adjusted according to the diameter of the tubular truss 4. The slotted hole is located in the direction of movement of the two T-shaped structural plates. The uprights of both the first and second T-shaped structural plates are connected to their upright support plates 11 by welding. Stiffening plates 12 are connected to both sides of the uprights of the first and second T-shaped structural plates between them and their upright support plates 11. The height of the upright of the first T-shaped structural plate is higher than that of the second T-shaped structural plate.

[0031] This invention relates to a construction method for high-altitude assembly of the upper chord support of the tubular truss, comprising the following steps:

[0032] 1) Arrange the lower column support part 1 reasonably according to the sag of the tubular truss 4, the segmentation points and the on-site construction conditions;

[0033] 2) Locate and mark the bolt hole positions corresponding to the lower support plate 5 of the lower column on the lower column support part 1, and then make holes.

[0034] 3) Install all lower columns 6 and tighten the connecting bolts;

[0035] 4) Assemble the column support part 2 and the U-shaped slot part 3 on the ground. Adjust the spacing between the two T-shaped structural plates of the U-shaped slot part 3 according to the diameter of the pipe truss 4 to meet the assembly requirements.

[0036] 5) Connect the assembled upper column support 2 and U-shaped slot 3 to the lower column support 1, and fine-tune the spacing between the two T-shaped structural plates of the U-shaped slot 3 to meet the assembly accuracy requirements of the tubular truss 4.

[0037] 6) After the tubular truss 4 is assembled, the upper chord support is removed. With the upper chord support bearing the weight of the tubular truss 4, ropes are tied to the upper column support 2 of the upper chord support in advance. The ropes are kept taut using hoisting equipment. The bolts between the lower column upper support plate 7 and the upper column lower support plate 8 are removed. A horizontal force is applied to the lower part of the upper column 9, causing the upper column 9 to rotate along the contact surface with the center of the tubular truss 4 as the center point. After the relative displacement between the lower column upper support plate 7 and the upper column lower support plate 8 occurs, the upper column support 2 is lifted off using hoisting equipment.

[0038] 7) When dismantling the upper column support 2, dismantle it symmetrically and synchronously from the middle of the fixed tube truss 4 to both ends of the tube truss 4. When dismantling the last set of upper column support 2, reduce the horizontal thrust applied to the upper column 9, slow down the relative displacement speed between the upper support plate 7 of the lower column and the lower support plate 8 of the upper column, and ensure that the tube truss 4 is subjected to stable force.

[0039] After the tubular truss 4 is successfully slid-down, it is reassembled according to steps 5) to 7) and reused.

[0040] 8) After construction is completed, remove the lower column support 1.

[0041] The above description is merely one specific embodiment of the present invention and does not constitute any limitation on the technical solution of the present invention. Obviously, those skilled in the art, after understanding the content and principles of the present invention, may make various modifications and changes in form and detail without departing from the principles and ideas of the present invention, but these modifications and changes based on the ideas of the present invention are still within the protection scope of the claims of the present invention.

Claims

1. A type of high-altitude assembly upper chord support for tubular trusses, characterized in that: The system includes a column support body, which is assembled from a lower column support part (1) and an upper column support part (2), with the assembly surface being an inclined surface. The upper column support part (2) includes an upper column (9) and an upper column support plate (10) provided on the top surface of the upper column (9). The upper column support plate (10) is provided with a U-shaped slot (3) for fixing the pipe truss (4). The U-shaped slot (3) is composed of a first T-shaped structural plate and a second T-shaped structural plate. The structure consists of two T-shaped structural plates, one of which includes a vertical plate and a vertical plate support plate (11). The tubular truss is fixed between the vertical plates of the two T-shaped structural plates. The vertical plate support plate (11) is connected to the upper column support plate (10) by bolts. The upper column support plate (10) has a strip hole for the bolts to pass through. The distance between the vertical plates of the two T-shaped structural plates can be adjusted according to the diameter of the tubular truss (4). The direction of the strip hole is the direction of movement of the two T-shaped structural plates. The lower column support part (1) includes a lower column (6), a lower column lower support plate (5) is horizontally arranged on the bottom surface of the lower column (6), an upper column upper support plate (7) is inclinedly arranged on the top surface of the lower column (6), and an upper column lower support plate (8) that cooperates with the lower column upper support plate (7) is inclinedly arranged on the bottom surface of the upper column (9). The upper support plate (7) of the lower column and the lower support plate (8) of the upper column are detachably connected by bolts, and the lower support plate (5) of the lower column is connected to the ground by bolts; The lower column (6) is welded to the lower column lower support plate (5) and the lower column upper support plate (7), and the upper column (9) is welded to the upper column lower support plate (8) and the upper column upper support plate (10).

2. The high-altitude assembly upper chord support of the tubular truss according to claim 1, characterized in that: The uprights of the first T-shaped structural plate and the second T-shaped structural plate are connected by welding to their upright support plates (11).

3. The high-altitude assembly upper chord support of the tubular truss according to claim 1 or 2, characterized in that: The first T-shaped structural plate and the second T-shaped structural plate are connected by stiffening plates (12) between the two sides of the upright plate and the upright plate support plate (11).

4. The high-altitude assembly upper chord support of the tubular truss according to claim 3, characterized in that: The vertical height of the first T-shaped structural panel is higher than that of the second T-shaped structural panel.

5. The high-altitude assembly upper chord support of the tubular truss according to claim 1, characterized in that: The upper column support (2) can be connected to the hoisting equipment via ropes.

6. A construction method based on the high-altitude assembly of the upper chord support of the tubular truss as described in claim 1, characterized in that, Includes the following steps: The lower column support (1) is arranged according to the sag of the tubular truss (4), the segmentation points and the on-site construction conditions. On the lower column support part (1), mark the corresponding bolt hole positions of the lower column support plate (5) and make holes; Install all lower columns (6) and tighten the connecting bolts; Assemble the column support part (2) and the U-shaped slot part (3) on the ground. Adjust the spacing between the two T-shaped structural plates of the U-shaped slot part (3) according to the diameter of the pipe truss (4) to meet the assembly requirements. Connect the assembled upper column support (2) and U-shaped slot (3) to the lower column support (1), and finely adjust the spacing between the two T-shaped structural plates of the U-shaped slot (3) to meet the assembly accuracy requirements of the tubular truss (4). After the tubular truss (4) is assembled, the upper chord support is removed. With the upper chord support bearing the weight of the tubular truss (4), ropes are tied to the upper column support (2) of the upper chord support in advance. The ropes are kept taut by the hoisting equipment. The bolts between the lower column upper support plate (7) and the upper column lower support plate (8) are removed. A horizontal force is applied to the lower part of the upper column (9), so that the upper column (9) rotates along the contact surface with the center of the tubular truss (4) as the center point. After the relative displacement between the lower column upper support plate (7) and the upper column lower support plate (8) occurs, the upper column support is lifted away from the upper column support (2) by the hoisting equipment. Remove the lower column support (1).

7. The construction method according to claim 6, characterized in that: When the upper column support (2) is removed, it is symmetrically and synchronously removed from the middle of the fixed tube truss (4) to both ends of the tube truss (4). When the last set of upper column support (2) is removed, the horizontal thrust applied to the upper column (9) is reduced, and the relative displacement speed between the upper support plate (7) of the lower column and the lower support plate (8) of the upper column is slowed down to ensure that the tube truss (4) is subjected to stable force.

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