Space truss three-dimensional positioning and assembling method

Abstract

The invention discloses a three-dimensional positioning and assembling method for a space truss, and relates to the field of three-dimensional frame structure construction. The three-dimensional positioning and assembling method for the space truss comprises the following steps: measuring, setting out and positioning, and mounting bottom plates and supporting columns connected to the top surfaces of the bottom plates on the ground; corbel devices are installed on the tops of the supporting columns; the pipe truss sections are in butt joint and assembled in the direction from low to high, and all components in the pipe truss sections are connected and supported on all the bracket devices correspondingly; the multiple pipe truss sections are spliced and connected into a whole; performing three-dimensional scanning imaging on the connected pipe truss sections, comparing with a structure model, and welding when space positioning requirements are met; the pipe truss segments are spliced to obtain a unit space truss meeting the hoisting segment requirement; and the unit space truss is measured and the assembly precision is rechecked. According to the three-dimensional positioning and splicing method for the space truss, positioning connection and splicing of all components in the pipe truss can be rapidly and efficiently carried out, so that the construction efficiency and the construction safety are effectively improved, and the construction cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of three-dimensional frame structure construction, and specifically to a three-dimensional positioning and assembly method for spatial trusses. Background Art

[0002] Large-scale spatial tube truss structures are often used in the design and construction of large sports stadiums. They can provide large-span, spiral-shaped stadium facade effects. However, the construction of large-scale spatial tube truss structures is difficult. The main reasons are: 1. The assembly and positioning of the spatial tube trusses are difficult, which reduces construction efficiency; 2. The hoisting and assembly of the spatial tube trusses are difficult; 3. The construction period is long, which easily increases construction costs.

[0003] Therefore, a fast and efficient three-dimensional positioning and assembly method for spatial trusses is needed to improve construction efficiency and reduce construction costs. Summary of the Invention

[0004] The purpose of this application is to provide a three-dimensional positioning and assembly method for a spatial truss, which can quickly and efficiently position, connect and assemble various components within the tube truss, thereby effectively improving construction efficiency and construction safety and reducing construction costs.

[0005] This application is implemented as follows: The present application provides a three-dimensional positioning and assembly method for a spatial truss, comprising the following steps: Measure and position the base plates and the support columns connected to the top surfaces of each base plate; Install the corbel device on the top of each supporting column; The pipe truss segments are butted and assembled from low to high, and the components in the pipe truss segments are connected and supported by the respective bracket devices; Assemble and connect multiple pipe trusses into one piece by piece; Perform 3D scanning and imaging of the connected tube truss segments and compare them with the structural model to achieve the required spatial positioning for welding; Each tube truss is segmented and spliced together to obtain a unit space truss that meets the lifting segment requirements; Measure the unit space trusses and check the assembly accuracy.

[0006] In some optional embodiments, when measuring, laying out, positioning, and installing the base plate and the support columns connected to the top surface of each base plate on the ground, the elevation and position of the corbel device on the top of each support column correspond to the preset elevation and position of the component to be supported in each pipe truss segment.

[0007] In some optional embodiments, the corbel device includes two adjustable splints that can be raised and lowered to fit on both sides of the support column, multiple connecting bolts that pass through and connect the two adjustable splints, and a corbel connected to the adjustable splints, and the multiple connecting bolts are located on both sides of the support column.

[0008] In some optional embodiments, the corbel device includes an I-beam connected to the top of the support column and a support plate connected to the top of the I-beam, and the support plate is provided with support holes for supporting the inner components of the tube truss segment.

[0009] In some optional embodiments, at least one oblique protective support is connected between both sides of the I-beam and the top of the support column.

[0010] In some optional implementation schemes, when the tube truss segments are connected and assembled from low to high, the lower chord is hoisted first, followed by the middle chord, then the upper chord, and finally the web.

[0011] In some optional implementation schemes, the installation of the base plate, support columns and corbel devices is carried out in batches. After the various components in the corresponding tube truss segment are respectively connected and supported on the corresponding corbel devices, the base plate, support columns and corbel devices corresponding to the next tube truss segment are installed.

[0012] In some optional implementation schemes, the unit space trusses are measured to verify the assembly accuracy and then three-dimensional scanning is used to check the assembly accuracy.

[0013] The beneficial effects of the present application are as follows: the three-dimensional positioning and assembly method of the space truss provided by the present application includes the following steps: measuring, laying out, positioning, and installing the base plate and the support columns connected to the top surface of each base plate on the ground; installing a corbel device on the top of each support column; docking and assembling the tube truss segments from low to high, and making each component in the tube truss segment connected and supported by each corbel device; assembling and connecting multiple tube truss segments into one; performing three-dimensional scanning and imaging of the connected tube truss segments and comparing them with the structural model to achieve the spatial positioning requirements for welding; splicing each tube truss segment to obtain a unit space truss that meets the lifting segment requirements; measuring and verifying the assembly accuracy of the unit space truss. The three-dimensional positioning and assembly method of the space truss provided by the present application can quickly and efficiently position, connect and assemble each component in the tube truss, thereby effectively improving construction efficiency and construction safety and reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 A schematic diagram of a flow chart of a three-dimensional positioning and assembly method for a spatial truss provided in an embodiment of the present application; Figure 2 A schematic structural diagram of a bracket device in the three-dimensional positioning and assembly method of a spatial truss provided in an embodiment of the present application; Figure 3 A schematic structural diagram of an adjustable splint, connecting bolts, and a corbel device in a three-dimensional positioning and assembly method for a spatial truss provided in an embodiment of the present application; Figure 4 A schematic structural diagram of an adjustable splint of a corbel device in the three-dimensional positioning and assembly method of a spatial truss provided in an embodiment of the present application; Figure 5 A schematic structural diagram of another bracket device in the three-dimensional positioning and assembly method of a spatial truss provided in an embodiment of the present application; Figure 6 A schematic structural diagram of a support plate of another bracket device in the three-dimensional positioning and assembly method of a spatial truss provided in an embodiment of the present application; Figure 7 A schematic structural diagram of assembling the first tube truss segment in the three-dimensional positioning assembly method for a spatial truss provided in an embodiment of the present application; Figure 8 A schematic structural diagram of assembling a second tube truss segment and connecting it to the first tube truss segment in the three-dimensional positioning assembly method of the spatial truss provided in an embodiment of the present application; Figure 9 This is a structural diagram of assembling a third tube truss segment and connecting it to the second tube truss segment in the three-dimensional positioning assembly method of the spatial truss provided in an embodiment of the present application; Figure 10 This is a structural schematic diagram of a unit space truss assembled in the three-dimensional positioning and assembly method of the space truss provided in an embodiment of the present application.

[0016] In the figure: 100, base plate; 110, support column; 120, corbel device; 121, adjustable splint; 122, connecting bolt; 123, corbel; 124, I-beam; 125, support plate; 126, oblique protection support; 127, support hole; 130, tube truss segment; 131, lower chord; 132, middle chord; 133, upper chord; 134, diagonal web member; 135, vertical web member. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0020] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0022] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0023] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0024] The features and performance of the three-dimensional positioning and assembly method of the spatial truss of the present application are further described in detail below in conjunction with the embodiments.

[0025] like Figure 1 As shown, the embodiment of the present application provides a three-dimensional positioning and assembly method of a space truss, comprising the following steps: Step 1: Use a total station to measure and position the lines, mark the column positions on the ground, and lay the base plate 100 with a cross-sectional area larger than the support column 110 at the preset position on the hardened ground and fix it; the base plate 100 can expand the contact area with the ground to ensure the stability of the foundation. Step 2: Fix and weld the support column 110 on the base plate 100 installed on the ground to ensure the verticality of the steel column and the quality of the weld; Step 3: Install the corbel device 120 on the top of each support column 110 until the base plate 100, support column 110 and corbel device 120 meet the lifting and assembly support point requirements of the tube truss segment, so that the elevation and position of the corbel device 120 on the top of each support column 110 correspond to the preset elevation and position of the component to be supported in the tube truss segment.

[0026] The bracket device 120 includes two types, wherein, Figure 2 、 Figure 3 and Figure 4 As shown, a bracket device 120 includes two adjustable clamps 121 that can be lifted and lowered and attached to both sides of the support column 110, four connecting bolts 122 that pass through and connect the two adjustable clamps 121, and brackets 123 connected to the adjustable clamps 121. The four connecting bolts 122 pass through the four corners of the two adjustable clamps 121 and are located on both sides of the support column 110. Figure 5 and Figure 6 As shown, another bracket device 120 includes an I-beam 124 connected to the top of the support column 110 and a support plate 125 connected to the top of the I-beam 124. The top of the support plate 125 is provided with a support hole 127 for supporting the lower chord 131, the middle chord 132 or the upper chord 133 in the tube truss segment. An oblique protective support 126 is connected between the two sides of the I-beam 124 and the top of the support column 110 respectively.

[0027] Step 4: Figure 7 As shown, the first tube truss segment 130 is assembled by connecting and assembling the first tube truss segment 130 one by one from low to high. First, the lower chord 131 is hoisted, followed by the middle chord 132, then the upper chord 133, and finally the diagonal web members 134 and the vertical web members 135. During the hoisting, the lower chord 131, the middle chord 132, the upper chord 133, the diagonal web members 134 and the vertical web members 135 in the first tube truss segment 130 are respectively connected to and supported by the corresponding bracket devices 120. Step 5: Figure 8 As shown, repeat steps 2 to 4 to install the base plate 100, support column 110 and bracket device 120 corresponding to the second tube truss segment 130, and hoist the second tube truss segment 130. The membrane elevation of the second tube truss segment 130 area is extended with the first tube truss segment 130, and the positioning and elevation of the two are different; Step 6: Assemble and connect the first and second tube truss segments 130 into one piece. Connect the lower chord 131, the middle chord 132, the upper chord 133, and the diagonal web 134 of the first tube truss segment 130 and the second tube truss segment 130 into one piece in the air. Figure 9 As shown, the above method is repeated to hang the third tube truss segment 130 and connect it with the second tube truss segment 130 to form a whole; Step 7: Perform three-dimensional scanning and imaging of the connected pipe truss segments 130 and compare them with the structural model. When the assembly meets the required spatial positioning requirements, perform welding until the welding is qualified. If there is any deviation, perform fine-tuning. Step 8: Figure 10 As shown, repeat the above steps to extend and assemble the tube truss to obtain a unit space truss that meets the lifting segmentation requirements; Step 9: Measure and verify the entire unit space truss again and perform 3D scanning to check the assembly accuracy and verify the design dimensions. The assembly of the entire unit space tube truss is completed.

[0028] The three-dimensional positioning and assembly method of the space truss provided in the embodiment of the present application is to install the base plate 100, the support column 110 connected to the corresponding base plate 100 and the bracket device 120 connected to the support column 110 after pre-positioning on the ground, and then hoist and assemble the lower chord 131, the middle chord 132, and the upper chord 133 of the first tube truss segment one by one from low to high and use the corresponding bracket device 120 to support and fix, and then hoist the diagonal web member 134 and the vertical web member 135 in the first tube truss segment to be connected to the lower chord 131, the middle chord 132, and the upper chord 133. The first tube truss segment is formed, and then the above steps are repeated to hoist the second tube truss segment and connect the lower chord 131, the middle chord 132, the upper chord 133 and the diagonal web 134 of the second tube truss segment in the air into one. The above method can be repeated to hoist the tube truss segment and connect it into a whole with the previous tube truss segment, and use three-dimensional scanning imaging and compare with the structural model to fine-tune the position until it is qualified and then connect it. After obtaining the unit space truss that meets the lifting segment requirements, measure and check again and use three-dimensional scanning to check the assembly accuracy, and verify that the design dimensions are qualified to complete the unit space tube truss assembly.

[0029] Among them, a corbel device 120 includes two adjustable splints 121 that can be raised and lowered to fit on both sides of the support column 110, four connecting bolts 122 that penetrate and connect the two adjustable splints 121, and corbels 123 connected to the adjustable splints 121. The user can loosen the connecting bolts 122 and then raise and lower the positions of the two adjustable splints 121 along the support column 110 to adjust the height of the corbel 123 connected to one adjustable splint 121 to adapt to the support requirements of different heights, and then retighten the connecting bolts 122 to re-clamp the two adjustable splints 121 on both sides of the support column 110 to support the corbels 123 to stably support the tube truss segments.

[0030] The three-dimensional positioning and assembly method of the spatial truss provided in the embodiment of the present application has the advantages of precise positioning, convenient simultaneous assembly of multiple parts over a large area, and fast and convenient operation. It can greatly improve construction efficiency and overall construction quality, and is suitable for the assembly of large spatial trusses. At the same time, two types of corbel devices 120 are used to support the internal components of the tube truss segments, and the height of the corbel device 120 can be adjusted to adapt to the corbel elevation requirements of different vertical frames, thereby ensuring the truss elevations at different points and the spatial position of the spatial truss, thereby improving the overall assembly accuracy and being beneficial to the accuracy of the overall spatial tube truss. In addition, more ground assembly is performed and less high-altitude work is performed, which is safe and convenient, and reduces construction risks.

[0031] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

Claims

1. A three-dimensional positioning and assembly method for a space truss, characterized in that: The following steps are involved: Measure and position the base plates and the support columns connected to the top surfaces of each base plate; Installing a corbel device on the top of each support column; The pipe truss segments are butted and assembled from low to high, and the components in the pipe truss segments are respectively connected and supported by the respective corbel devices; Assembling and connecting a plurality of the tube trusses into a whole in sections; Perform 3D scanning and imaging of the connected tube truss segments and compare them with the structural model to achieve the required spatial positioning for welding; The tube trusses are segmented and spliced together to obtain a unit space truss that meets the lifting segment requirements; Measure the unit space trusses and check the assembly accuracy.

2. The three-dimensional positioning and assembly method of a space truss according to claim 1, characterized in that: When measuring, laying out, positioning, and installing the base plate and the support columns connected to the top surface of each base plate on the ground, the elevation and position of the bracket device on the top of each support column should correspond to the preset elevation and position of the components to be supported in each of the pipe truss segments.

3. The three-dimensional positioning and assembly method of a space truss according to claim 1, characterized in that: The bracket device includes two adjustable splints that can be lifted and lowered and attached to both sides of the support column, multiple connecting bolts that penetrate and connect the two adjustable splints, and brackets connected to the adjustable splints. The multiple connecting bolts are respectively located on both sides of the support column.

4. The three-dimensional positioning and assembly method of a space truss according to claim 1, characterized in that: The bracket device includes an I-beam connected to the top of the support column and a support plate connected to the top of the I-beam, and the support plate is provided with support holes for supporting the inner components of the tube truss segment.

5. The three-dimensional positioning and assembly method of a space truss according to claim 4, characterized in that: At least one oblique protective support is connected between the two sides of the I-beam and the top of the support column.

6. The three-dimensional positioning and assembly method of a space truss according to claim 1, characterized in that: When connecting and assembling the pipe truss segments from low to high, first hoist the lower chord, then hoist the middle chord, then hoist the upper chord, and finally install the web.

7. The three-dimensional positioning and assembly method of a space truss according to claim 1, characterized in that: The installation of the base plate, support column and corbel device is carried out in batches. After the various components in the corresponding pipe truss segment are connected and supported by the corresponding corbel device, the base plate, support column and corbel device corresponding to the next pipe truss segment are installed.

8. The three-dimensional positioning and assembly method of a space truss according to claim 1, characterized in that: After measuring and verifying the assembly accuracy of the unit space truss, use 3D scanning to check the assembly accuracy.

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