A large-span special-shaped curved surface net shell structure roof form-finding installation construction method

Abstract

This invention relates to a method for the form-finding installation of a large-span irregular curved reticulated shell roof structure, comprising the following steps: dividing the irregular curved roof into areas to form a bulk area at the outer edge and a reticulated shell structure installation area enclosing the bulk area; dividing the reticulated shell structure installation area into at least two installation partitions in sequence, and setting a cantilever partition between each two adjacent installation partitions; further dividing the installation partitions and the cantilever partitions into multiple unit partitions; first installing the bulk area to form a bulk reticulated shell structure, and then installing the reticulated shell structure installation area to form a spliced ​​reticulated shell structure. This invention is highly applicable to the installation of large-span irregular curved reticulated shell structures; through reasonable installation steps and sequence control, the large-span irregular curved reticulated shell roof structure can be accurately installed and closed, avoiding deviations that could lead to mismatched reticulated shell structure members; the sequential block hoisting method accelerates the construction speed of the reticulated shell components, making it highly practical.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and specifically relates to a method for the form-finding and installation construction of a large-span irregular curved surface grid shell structure roof. Background Technology

[0002] With the development of society and economy and the increasing demand for architectural space, new materials such as aluminum alloy large-span thin-walled reticulated shells have begun to be widely used. Aluminum alloy thin-walled reticulated shells can meet requirements such as ultra-large spans, lightweight structures, and beautiful shapes, and have been widely applied in recent years. However, installing large-span irregularly curved aluminum alloy reticulated shell roof structures on irregularly curved roofs presents challenges. Due to the large span and irregular surface, traditional installation methods may introduce errors when assembling and forming pre-fabricated structural members, resulting in low installation accuracy and poor closure. Therefore, we propose a form-finding installation method for large-span irregularly curved reticulated shell roof structures to solve these problems. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a method for the form-finding and installation of a large-span irregular curved reticulated shell roof structure, which solves the problem of low installation and closure accuracy.

[0004] This invention is achieved through the following scheme: a method for form-finding and installation of a large-span irregular curved reticulated shell structure roof, comprising the following steps:

[0005] The irregular curved roof is divided into areas to form a bulk area on the outer edge and a grid structure installation area enclosed within the bulk area.

[0006] The installation area of ​​the reticulated shell structure is divided into at least two installation partitions in sequence, and a spanning partition is set between each two adjacent installation partitions. The installation partitions and the spanning partitions are divided into multiple unit partitions respectively.

[0007] The structural members are assembled to form unit blocks corresponding to the unit partitions;

[0008] First, install the bulk area to form a bulk mesh shell structure, then install the mesh shell structure installation area to form a spliced ​​mesh shell structure;

[0009] Specifically, when installing each suspended section, the corresponding unit blocks are hoisted and installed, and the unit blocks of the adjacent unit sections of the bulk reticulated shell structure are connected to the bulk reticulated shell structure to form the suspended reticulated shell structure; when installing each installation section, the corresponding unit blocks are hoisted and installed in a circular, outward-to-inward order, and the unit blocks corresponding to the outermost unit sections are connected to the bulk reticulated shell structure and the suspended reticulated shell structure.

[0010] A further improvement of the present invention on the form-finding installation method of a large-span irregular curved reticulated shell roof structure is that, before installing the bulk area, the method further includes the step of: installing the roof bottom eaves around the edge of the irregular curved roof, wherein the bulk area is located on the inner side of the roof bottom eaves.

[0011] A further improvement of the present invention regarding the form-finding and installation method for a large-span irregular curved reticulated shell roof structure lies in that the installation of the bulk area includes the following steps:

[0012] The structural members are hoisted to the bulk assembly area, and the ends of multiple structural members are brought together to form a ring end. Two fixing discs are then bolted to cover the upper and lower sides of the ring end to form a bulk assembly.

[0013] The assembled loose components are connected to the bottom eaves of the roof, and the loose components are assembled and fixed in sequence to form a loose mesh shell structure around the inner edge of the bottom eaves of the roof.

[0014] A further improvement of the present invention on the form-finding installation method of a large-span irregular curved surface reticulated shell roof structure is that the unit block includes multiple structural members, two fixing plates and multiple bolts; the ends of multiple structural members are gathered together to form an annular end, and multiple bolts are used to cover the two fixing plates on the upper and lower sides of the annular end respectively to form a unit block.

[0015] A further improvement of the present invention on the form-finding installation method of a large-span irregular curved reticulated shell structure roof is that adjacent unit blocks are assembled by connecting corresponding structural members, and the unit blocks located on the outer ring are assembled by connecting corresponding structural members with the loose reticulated shell structure.

[0016] A further improvement of the present invention regarding the form-finding installation method for a large-span irregular curved reticulated shell roof structure lies in the fact that, during the installation of each installation section, the unit blocks are hoisted and installed in a circular, outward-to-inward sequence to the corresponding unit section, including the following steps:

[0017] Hoist the unit blocks to the installation area, first assemble the unit blocks along the relative outer edge to form an inner ring, and then assemble the unit blocks within the inner ring area from the outside to the inside along the ring.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] This invention provides a form-finding installation construction scheme for a large-span irregular-shaped aluminum alloy grid shell roof system, which is highly applicable to the installation of large-span irregular-shaped curved aluminum alloy grid shell structures. Through reasonable installation steps and sequence control, the large-span irregular-shaped curved aluminum alloy grid shell roof structure can be accurately installed and closed, avoiding deviations that could lead to mismatched installation of grid shell structure members, requiring reprocessing of members according to the on-site installation conditions. The use of a sequential, segmented hoisting method accelerates the construction speed of aluminum alloy grid shell components, making it highly practical. Attached Figure Description

[0020] Figure 1 The diagram shows a top view of the roof after it has been installed and closed in the form-finding and installation construction method of the large-span irregular curved surface reticulated shell structure roof of the present invention.

[0021] Figure 2 The diagram shows an elevation view of the roof after it has been installed and closed in the form-finding and installation construction method of the large-span irregular curved surface reticulated shell structure roof of the present invention.

[0022] Figure 3 This diagram illustrates the assembly of structural members in a bulk area to form a first reticulated shell structure in the form-finding and installation construction method for a large-span irregular curved reticulated shell roof according to the present invention.

[0023] Figure 4 This diagram illustrates the assembly of unit blocks corresponding to the first suspended span installation area to form the second reticulated shell structure in the form-finding and installation construction method of the large-span irregular curved reticulated shell structure roof of the present invention.

[0024] Figure 5 This diagram illustrates the assembly of unit blocks in the third installation area relative to the outer edge to form an inner ring in the form-finding installation method of the large-span irregular curved reticulated shell structure roof of the present invention.

[0025] Figure 6 This diagram illustrates the assembly of unit blocks in the corresponding unit zones along the inner ring area of ​​the large-span irregular curved reticulated shell structure roof according to the present invention.

[0026] Figure 7 The diagram shows the completed installation of the third reticulated shell structure in the form-finding and installation construction method of the large-span irregular curved reticulated shell structure roof of the present invention.

[0027] Figure 8 The diagram illustrates the assembly of unit blocks in the second suspended installation area to form the sixth reticulated shell structure, and the assembly of unit blocks in the fourth installation area to form the inner ring, in the form-finding and installation method for the large-span irregular curved reticulated shell structure roof of the present invention.

[0028] Figure 9The diagram illustrates the method for assembling unit blocks along the inner ring of the ring from the outside in to form a fourth reticulated shell structure in the form-finding and installation construction of the large-span irregular curved reticulated shell roof of the present invention.

[0029] Figure 10 This diagram illustrates the assembly of unit blocks in the fifth installation zone relative to the outer edge to form an inner ring in the form-finding installation method of the large-span irregular curved reticulated shell structure roof of the present invention.

[0030] Figure 11 The diagram illustrates the method for assembling unit blocks along the inner ring of the ring from the outside in to form the fifth reticulated shell structure in the form-finding and installation construction method of the large-span irregular curved reticulated shell roof of the present invention.

[0031] Figure 12 The diagram shows the structural members, fixing plates, and bolt connection structure in the form-finding installation method of the large-span irregular curved surface reticulated shell roof of the present invention.

[0032] In the diagram: 11. Roof eaves; 21. Grid shell roof structure; 211. First grid shell structure; 212. Second grid shell structure; 213. Third grid shell structure; 214. Fourth grid shell structure; 215. Fifth grid shell structure; 216. Unit block; 2161. Structural member; 2162. Fixing plate; 2163. Bolt; 217. Sixth grid shell structure; 31. Grid shell structure installation area; 311. Unit partition; 312. First cantilever installation area; 313. Third installation area; 314. Fourth installation area; 315. Fifth installation area; 316. Second cantilever installation area. Detailed Implementation

[0033] To address the issue of low installation and closure accuracy, this invention provides a method for the form-finding installation of a large-span irregular curved reticulated shell roof structure. The following detailed description, in conjunction with accompanying drawings, provides further illustration of this method for the form-finding installation of a large-span irregular curved reticulated shell roof structure.

[0034] See Figures 1-12 As shown, a method for form-finding and installation of a large-span irregular curved reticulated shell roof structure includes the following steps:

[0035] S1. Divide the irregular curved roof into areas to form a bulk area located at the outer edge and a grid shell structure installation area 31 in the middle of the relatively bulk area;

[0036] S2. Divide the grid shell structure installation area 31 into a third installation area 313, a fourth installation area 314, a fifth installation area 315, a first suspended installation area 312 located between the third installation area 313 and the fourth installation area 314, and a second suspended installation area 316 located between the fourth installation area 314 and the fifth installation area 315.

[0037] The third installation area 313, the fourth installation area 314, the fifth installation area 315, the first suspended installation area 312, and the second suspended installation area 316 are each divided into multiple unit partitions 311;

[0038] S3. Assemble structural members 2161 in the bulk area to form the first grid shell structure 211;

[0039] S4. Assemble the structural members 2161 into unit blocks 216 corresponding to the unit partitions;

[0040] S5. The hoisting unit block 216 is assembled to the unit partition 311 corresponding to the first cantilever installation area 312 to form the second grid shell structure 212 for the first shaping of the top of the irregular curved grid shell structure roof 21, and the second grid shell structure 212 is connected to the first grid shell structure 211.

[0041] S6. The hoisting unit block 216 is assembled from the outside to the inside of the third installation area 313 in a ring shape to form the third mesh shell structure 213. The third mesh shell structure 213 is connected to the first mesh shell structure 211 and the second mesh shell structure 212.

[0042] S7. The hoisting unit block 216 is assembled to the unit partition 311 corresponding to the second suspended installation area 316 to form the sixth grid shell structure 217 for the second shaping of the top of the irregular curved grid shell structure roof 21, and the sixth grid shell structure 217 is connected to the first grid shell structure 211.

[0043] S8. The hoisting unit block 216 is assembled from the outside to the inside of the fourth installation area 314 to form the fourth mesh shell structure 214. The fourth mesh shell structure 214 is connected to the first mesh shell structure 211, the second mesh shell structure 212 and the sixth mesh shell structure 217.

[0044] S9. The hoisting unit block 216 is connected to the unit partition 311 corresponding to the fifth installation area 315. The unit partition 311 is assembled in a ring from the outside to the inside to form the fifth grid shell structure 215. The fifth grid shell structure 215 is connected to the first grid shell structure 211 and the sixth grid shell structure 217. Thus, a large-span irregular curved surface grid shell structure roof 21 is formed.

[0045] Specifically, the outer perimeter of the grid shell roof 21 is assembled and shaped using a ring of structural members 2161 to form the first grid shell structure 211. The middle section (grid shell structure installation area 31) is divided into multiple unit zones 311 according to the lifting performance of the hoisting machinery and the deformation of the grid shell segments. This facilitates the hoisting of unit blocks 216 to the corresponding unit zones 311 for assembly. A suitable support system (existing technology) is set up for hoisting single units in the first cantilever installation area 312 (top 1 / 3 of the roof) at the top of the large-span irregular curved aluminum alloy grid shell roof 21. The assembly and installation of unit block 216 achieves the first shaping of the top of the large-span irregular aluminum alloy mesh shell structure roof 21; the assembly and installation of unit block 216 in the second cantilever installation area 316 (2 / 3 of the top of the roof) of the large-span irregular curved aluminum alloy mesh shell structure roof 21 achieves the second shaping of the top of the large-span irregular aluminum alloy mesh shell structure roof 21; the mesh shell unit blocks 216 are hoisted and installed in sections from the outside to the inside in sequence, and the installation error of the mesh shell structure to be installed is controlled by the already shaped top unit block 216 and the circumferential unit blocks 216 in the sections, so as to realize the installation and closure of the mesh shell unit blocks 216.

[0046] The process includes the following steps before step S3: installing the roof eaves 11 around the edge of the irregular curved roof, with the bulk area located inside the roof eaves 11.

[0047] By first installing the roof eaves 11 as the connection support between the large-span irregular curved reticulated shell structure roof 21 and the roof, it can be used to control and define the bottom dimensions of the reticulated shell structure roof 21, which is beneficial for subsequent error-free construction.

[0048] Step S3 includes the following steps:

[0049] The structural members 2161 are hoisted to the bulk area, and the ends of multiple structural members 2161 are gathered together to form an annular end. Two fixing discs 2162 are respectively covered on the upper and lower sides of the annular end by bolts 2163 to form a bulk component.

[0050] The assembled loose parts are connected to the roof eaves 11, and the loose parts are assembled and fixed in sequence to form a first grid shell structure 211 that surrounds the inner edge of the roof eaves 11.

[0051] By assembling and shaping the first grid shell structure 211 without errors through the loose installation of the ring-shaped structural members 2161 inside the roof eaves 11, it is beneficial to the precise assembly of the subsequent grid shell structure roof 21.

[0052] The unit block 216 includes multiple structural members 2161, two fixing disks 2162, and multiple bolts 2163. The ends of the multiple structural members 2161 are brought together to form an annular end, and the fixing disks 2162 are fixed to both sides of the annular end with bolts 2163 to form the unit block 216.

[0053] By assembling structural members 2161 into unit blocks 216 of the corresponding unit partition 311 size, the size will not be inconsistent when they are installed in sequence, ensuring the precise installation of unit blocks 216 one by one.

[0054] In step S5, connecting the second mesh shell structure 212 with the first mesh shell structure 211 means connecting and assembling the structural members 2161 in the unit blocks 216 of the second mesh shell structure 212 that are adjacent to the first mesh shell structure 211 at both ends with the corresponding structural members 2161 in the first mesh shell structure 211.

[0055] In step S6, connecting the third grid shell structure 213 with the first grid shell structure 211 and the second grid shell structure 212 means connecting and assembling the structural members 2161 in the unit block 216 of the third grid shell structure 213 that are adjacent to the first grid shell structure 211 and the second grid shell structure 212 with the corresponding structural members 2161 in the first grid shell structure 211 and the second grid shell structure 212.

[0056] In step S7, connecting the sixth grid shell structure 217 with the first grid shell structure 211 means connecting and assembling the structural members 2161 in the unit blocks 216 of the sixth grid shell structure 217 that are adjacent to the first grid shell structure 211 at both ends with the corresponding structural members 2161 in the first grid shell structure 211.

[0057] In step S8, connecting the fourth grid shell structure 214 with the first grid shell structure 211, the second grid shell structure 212, and the sixth grid shell structure 217 means connecting and assembling the structural members 2161 in the unit blocks 216 of the fourth grid shell structure 214 that are adjacent to the first grid shell structure 211, the second grid shell structure 212, and the sixth grid shell structure 217 with the corresponding structural members 2161 in the first grid shell structure 211, the second grid shell structure 212, and the sixth grid shell structure 217.

[0058] In step S9, connecting the fifth grid shell structure 215 with the first grid shell structure 211 and the sixth grid shell structure 217 means assembling and connecting the structural members 2161 in the unit block 216 of the fifth grid shell structure 215 that are adjacent to the first grid shell structure 211 and the sixth grid shell structure 217 with the corresponding structural members 2161 in the first grid shell structure 211 and the sixth grid shell structure 217.

[0059] By sequentially installing the unit blocks 216 and then splicing them with the adjacent structural members 2161, the installed grid shell structure can be precisely assembled to form a large-span irregular curved grid shell structure roof 21. The segmented installation and connection facilitates precise construction.

[0060] Among them, steps S6, S8, and S9, assembling from the outside to the inside in a ring-like manner includes the following steps:

[0061] The hoisting unit block 216 is placed into the unit partition 311. First, the unit partition 311 is assembled along the relative outer edge to form an inner ring. Then, the unit partition 311 within the inner ring area is assembled from the outside to the inside of the ring.

[0062] By using the above construction method, the unit block 216 can be precisely assembled within the corresponding unit partition 311, avoiding deviations and thus ensuring the precise closure of the grid shell structure roof 21.

[0063] 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 process, method, article, or apparatus.

[0064] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A method for form-finding and installation of a large-span irregular curved reticulated shell roof structure, characterized in that, Includes the following steps: The irregular curved roof is divided into areas to form a bulk area on the outer edge and a grid structure installation area enclosed within the bulk area. The installation area of ​​the reticulated shell structure is divided into at least two installation partitions in sequence, and a spanning partition is set between each two adjacent installation partitions. The installation partitions and the spanning partitions are divided into multiple unit partitions respectively. The structural members are assembled to form unit blocks corresponding to the unit partitions; First, install the bulk area to form a bulk mesh shell structure, then install the mesh shell structure installation area to form a spliced ​​mesh shell structure; Specifically, when installing each suspended section, the corresponding unit blocks are hoisted and installed, and the unit blocks of the adjacent unit sections of the bulk reticulated shell structure are connected to the bulk reticulated shell structure to form the suspended reticulated shell structure; when installing each installation section, the corresponding unit blocks are hoisted and installed in a circular, outward-to-inward order, and the unit blocks corresponding to the outermost unit sections are connected to the bulk reticulated shell structure and the suspended reticulated shell structure.

2. The method for form-finding and installation of a large-span irregular curved reticulated shell structure roof as described in claim 1, characterized in that, The step prior to installing the bulk area is to install a roof eave around the edge of the irregular curved roof, with the bulk area located inside the roof eave.

3. The method for form-finding and installation of a large-span irregular curved reticulated shell structure roof as described in claim 2, characterized in that, Installing the bulk area includes the following steps: The structural members are hoisted to the bulk assembly area, and the ends of multiple structural members are brought together to form a ring end. Two fixing discs are then bolted to cover the upper and lower sides of the ring end to form a bulk assembly. The assembled loose components are connected to the bottom eaves of the roof, and the loose components are assembled and fixed in sequence to form a loose mesh shell structure around the inner edge of the bottom eaves of the roof.

4. The method for form-finding and installation of a large-span irregular curved reticulated shell structure roof as described in claim 1, characterized in that, The unit block includes multiple structural members, two fixing discs, and multiple bolts; the ends of the multiple structural members are brought together to form an annular end, and the two fixing discs are respectively covered on the upper and lower sides of the annular end by multiple bolts to form the unit block.

5. The method for form-finding and installation of a large-span irregular curved reticulated shell structure roof as described in claim 4, characterized in that, The adjacent unit blocks are assembled by connecting corresponding structural members, and the unit blocks located on the outer ring are assembled by connecting corresponding structural members to the bulk reticulated shell structure.

6. The method for form-finding and installation of a large-span irregular curved reticulated shell structure roof as described in claim 1, characterized in that, The installation of each installation partition involves hoisting the unit blocks into the corresponding unit partition in a circular, inward-to-outward sequence, including the following steps: Hoist the unit blocks to the installation area, first assemble the unit blocks along the relative outer edge to form an inner ring, and then assemble the unit blocks within the inner ring area from the outside to the inside along the ring.

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