Temporary fixing support for installation of steel structure large-span truss

Abstract

The utility model discloses a kind of temporary fixed support of steel structure large-span truss installation, including support column, foundation, column top support table and backing plate;Support column is round pipe column, bottom and foundation are fixed between through flange and bolt connection, foundation is the field shape steel structure that section steel is welded and is enclosed, top surface is opened with the connecting hole corresponding with flange hole, column top support table is rectangular platform, is welded and fixed in support column top, backing plate is two steel plates vertically welded on column top support table, for supporting below chord bar below.The utility model simple and reasonable structure, construction is convenient, can effectively provide stable temporary support for segmented truss, ensure segmented hoisting smooth construction, avoid truss chord to occur deformation, improve construction quality, reduce construction difficulty, reduce security risk.

Description

Technical Field

[0001] This utility model relates to the field of truss construction technology, and in particular to a temporary fixed support for the installation of large-span steel trusses. Background Technology

[0002] In the assembly and construction of steel structure factory trusses, the truss span is between 70m and 80m. Direct hoisting is difficult, and the large truss span during hoisting makes the lower chord of the truss very prone to deformation, making it difficult to guarantee the construction quality of the truss.

[0003] Therefore, large-span steel trusses need to be installed using a segmented hoisting method. Temporary supports need to be set at the segmentation points to ensure that the segmented hoisting can be carried out smoothly and to prevent deformation of the lower chord of the truss.

[0004] In view of this, this utility model proposes a temporary fixed support for the installation of a large-span steel truss. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a temporary fixed support for the installation of a large-span steel truss, which can effectively provide stable temporary support for the segmented truss, ensure smooth segmented hoisting construction, reduce construction difficulty, avoid deformation of the lower chord of the truss, improve construction quality, reduce safety hazards, and thus overcome the shortcomings of the prior art.

[0006] To solve the above-mentioned technical problems, this utility model provides a temporary fixed support for the installation of a large-span steel truss, including a support column, a foundation, a column top support platform, and a support plate;

[0007] The support column is a round tube column, and its bottom is fixed to the foundation by flanges and bolts.

[0008] The foundation is a grid-shaped steel structure formed by welding steel profiles, with connection holes on the top surface corresponding to the flange holes, for connecting to the bottom flange of the support column;

[0009] The column top support platform is a rectangular platform, welded and fixed to the top of the support column. The support plate consists of two steel plates vertically welded to the column top support platform, used to support the lower chord below.

[0010] As an improvement of this utility model, the support column includes multiple branch columns connected end to end, and adjacent branch columns are connected by flanges and bolts.

[0011] Furthermore, the top surface of the support plate has a notch that matches the lower chord of the truss, for close contact with the lower chord.

[0012] Furthermore, the support column is made of A609×16 round pipe, the foundation is welded from H300×300×10×16 I-beams, the bolts are M24, and the plate thickness is 20mm.

[0013] Furthermore, it also includes top diagonal bracing and middle diagonal bracing;

[0014] Both the top and middle diagonal braces are inclined and their lower ends are welded and fixed to the ground. The upper end of the top diagonal brace is welded and fixed to the column top support platform, and the upper end of the middle diagonal brace is welded and fixed to the middle of the support column.

[0015] Furthermore, both the top and middle diagonal braces are made of 16# channel steel, and the ground reinforcement uses two C20 steel bars.

[0016] Furthermore, a first horizontal brace is horizontally welded between the top diagonal brace and the foundation, and a second horizontal brace is horizontally welded between the middle diagonal brace and the foundation.

[0017] Furthermore, both the first and second cross braces are made of 16# channel steel.

[0018] Furthermore, the support plate is located at the lower node of the web member closest to the truss segment point.

[0019] With this design, the present invention has at least the following advantages.

[0020] 1. This utility model can effectively provide stable temporary support for segmented trusses, ensure smooth segmented hoisting construction, avoid deformation of the lower chord of the truss, improve construction quality, reduce construction difficulty, and reduce safety hazards.

[0021] 2. The support column consists of multiple branch columns connected end to end. The number of branch columns can be adjusted or different lengths of branch columns can be selected according to the construction site environment, thereby adjusting the overall height of the support column.

[0022] 3. The top and middle diagonal braces effectively ensure the stability of the support column. The first horizontal brace is welded between the top diagonal brace and the foundation, and the second horizontal brace is welded between the middle diagonal brace and the foundation, which further improves the structural stability.

[0023] 4. The top surface of the support plate has a notch that matches the lower chord of the truss, so that it can fit tightly with the lower chord and prevent lateral slippage.

[0024] 5. The structure is simple and reasonable, and easy to construct. Attached Figure Description

[0025] The above is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, the following describes this utility model in further detail with reference to the accompanying drawings and specific embodiments.

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] Figure 2 This is a frontal view of the utility model in use.

[0028] Figure 3 This is a partial planar structural diagram of the connection between the support column and the foundation.

[0029] Figure 4 This is a partial planar structural diagram of the connection between the support column and the foundation.

[0030] Explanation of reference numerals in the attached diagram: 1. Support column; 2. Foundation; 3. Column top support platform; 4. Support plate; 5. Top diagonal brace; 6. Middle diagonal brace; 7. First horizontal brace; 8. Second horizontal brace; 9. Truss. Detailed Implementation

[0031] Please see Figures 1 to 4 This utility model provides a temporary fixed support for the installation of a large-span steel truss, including a support column 1, a foundation 2, a column top support platform 3, a support plate 4, a top diagonal brace 5, a middle diagonal brace 6, a first cross brace 7, and a second cross brace 8.

[0032] The support column 1 is a circular pipe column. In this embodiment, the support column 1 uses an A609×16 circular pipe. The support column 1 includes multiple branch pipe columns connected end to end. The branch pipe columns located in the lower and middle layers have flanges welded at both ends, while the branch pipe columns located in the top layer have flanges welded only at the lower end. Adjacent branch pipe columns and the bottom branch pipe column are connected to the foundation 2 by flanges and bolts.

[0033] The foundation 2 is a grid-shaped steel structure formed by welding steel sections. In this embodiment, the foundation 2 is welded from H300×300×10×16 I-beams. The top surface of the foundation 2 has connection holes corresponding to the flange holes for connecting to the bottom flange of the support column 1. The bolts used for connection are M24.

[0034] The column top support platform 3 is a rectangular platform welded to the top of the support column 1. The support plate 4 consists of two 20mm thick steel plates, vertically welded to the column top support platform 3. The top surface of the support plate 4 has a notch that matches the lower chord of the truss 9, allowing the support plate 4 to fit tightly against the lower chord to prevent lateral slippage.

[0035] Both the top diagonal brace 5 and the middle diagonal brace 6 are inclined and their lower ends are welded and fixed to the ground. The upper end of the top diagonal brace 5 is welded and fixed to the column top support platform 3, and the upper end of the middle diagonal brace 6 is welded and fixed to the middle column body of the support column 1.

[0036] Near the bottom of the top diagonal brace 5 and the middle diagonal brace 6, a first horizontal brace 7 and a second horizontal brace 8 are also provided. The first horizontal brace 7 is horizontally welded between the top diagonal brace 5 and the foundation 2, and the second horizontal brace 8 is horizontally welded between the middle diagonal brace 6 and the foundation 2.

[0037] In this embodiment, the top diagonal brace 5, the middle diagonal brace 6, the first horizontal brace 7 and the second horizontal brace 8 are all made of 16# channel steel, and the ground reinforcement is made of two C20 steel bars.

[0038] In use, the support column 1 is set near the truss segment point, so that the support plate 4 is just supported at the lower node of the web member closest to the segment point. In this embodiment, the truss 9 is divided into two ends, the first segment is about 38m and the second segment is about 40m. The support point of the support plate 4 is 2.95m away from the segment point.

[0039] This utility model has a simple and reasonable structure, is easy to construct, and can effectively provide stable temporary support for segmented trusses, ensuring smooth segmented hoisting construction, avoiding deformation of the lower chord of the truss, improving construction quality, reducing construction difficulty, and reducing safety hazards.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes or alterations made by those skilled in the art using the disclosed technical content shall fall within the protection scope of the present utility model.

Claims

1. A temporary fixing support for installation of a steel structure long-span truss, characterized in that, This includes support columns, foundations, column top support platforms, and brackets; The support column is a round tube column, and its bottom is fixed to the foundation by flanges and bolts. The foundation is a grid-shaped steel structure formed by welding steel profiles, with connection holes on the top surface corresponding to the flange holes, for connecting to the bottom flange of the support column; The column top support platform is a rectangular platform, welded and fixed to the top of the support column. The support plate consists of two steel plates vertically welded to the column top support platform, used to support the lower chord below.

2. The temporary fixed support for installing a large-span steel truss according to claim 1, characterized in that, The support column includes multiple branch columns connected end to end, and adjacent branch columns are connected by flanges and bolts.

3. The temporary fixed support for installing a large-span steel truss according to claim 1, characterized in that, The top surface of the support plate has a notch that matches the lower chord of the truss, for a tight fit with the lower chord.

4. The temporary fixed support for installing a large-span steel truss according to claim 1, characterized in that, The support column is made of A609×16 round pipe, the foundation is welded from H300×300×10×16 I-beams, the bolts are M24, and the plate thickness is 20mm.

5. A temporary fixed support for installing a large-span steel truss according to claim 1, characterized in that, It also includes top and middle diagonal bracing; Both the top and middle diagonal braces are inclined and their lower ends are welded and fixed to the ground. The upper end of the top diagonal brace is welded and fixed to the column top support platform, and the upper end of the middle diagonal brace is welded and fixed to the middle of the support column.

6. The temporary fixed support for installing a large-span steel truss according to claim 5, characterized in that, The top and middle diagonal braces are both made of 16# channel steel, and the ground reinforcement uses two C20 steel bars.

7. A temporary fixed support for installing a large-span steel truss according to claim 5, characterized in that, The top diagonal brace is horizontally welded to the foundation with a first horizontal brace, and the middle diagonal brace is horizontally welded to the foundation with a second horizontal brace.

8. A temporary fixed support for installing a large-span steel truss according to claim 7, characterized in that, Both the first and second cross braces are made of 16# channel steel.

9. A temporary fixed support for installing a large-span steel truss according to claim 1, characterized in that, The support plate is located at the lower node of the web member closest to the truss segment point.

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