Construction structure and construction method of roof reticulated shell

Abstract

The invention discloses a building structure and a building method of a roof reticulated shell, and relates to the technical field of constructional engineering. The building structure of the roof reticulated shell comprises a first stand column set which comprises a plurality of first steel stand columns, and the first steel stand columns are inserted into the ground in a surrounding mode to form an annular shape; the first truss group comprises a plurality of first trusses which are connected in sequence, and the first truss group is erected at the top of the first stand column group; and the hoisting platform is laid on the top of the first truss set, a plurality of hoisting assemblies are arranged on the hoisting platform, the annular shape formed by the hoisting assemblies and the annular shape formed by the first stand column set are concentric, and the hoisting assemblies are used for hoisting the roof structure located in the annular shape of the first stand column set. When the roof reticulated shell is built, the roof reticulated shell only needs to move in the vertical direction, and does not need to move in the horizontal direction, so that adverse effects caused by shaking in the horizontal moving process on construction are avoided, the inclination degree of the roof reticulated shell can be adjusted, and the mounting precision of the roof reticulated shell is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, and in particular to a building structure and a building method of a roof lattice shell. Background Art

[0002] With the rapid development of the current construction industry and the rapid advancement of science and technology, the demand for a series of public buildings such as stadiums, terminal buildings, exhibition halls, and waiting halls is growing. Unlike previous building structures, the upper part of such buildings is an integral structure of large-span trusses and roof grid shells. For the construction of the roof grid shell, steel is welded manually at preset drum-type nodes in the air to form a roof grid shell structure. However, multiple steels need to be welded on a drum-type node, and construction workers need to perform long-term high-altitude operations. Not only is the construction risk high, but the welding accuracy is also greatly affected by the working environment.

[0003] There are some large-span truss and roof grid shell integral structures in the prior art, such as the invention patent with publication number: CN114892813B discloses a large-span building main body supporting steel structure and construction method, which relates to the field of large-span buildings. The large-span building main body supporting steel structure and construction method include a main arch truss, a single-layer grid shell is installed and connected to the main arch truss, and the single-layer grid shell is installed after the main arch truss is installed. The main arch truss embedded rod welding is performed by welding the embedded rod through the inner horseway facilities of the main arch truss. The large-span building main body supporting steel structure and construction method provided by the present invention is to divide the main arch truss and the single-layer grid shell into multiple modules, and quickly realize the assembly by combining component assembly, block hoisting and embedded rod installation, and then directly use the hoisting equipment to assist it to complete the overall construction and installation, so that the overall large-span building structure can be quickly, stably and firmly completed, effectively shortening the construction time, and can also greatly ensure the stability of the construction building.

[0004] The construction of the above-mentioned roof grid shell is completed by assembling multiple unit grid shells on the ground, and then hoisting it to the top of the large-span truss for installation through hoisting equipment. However, during the hoisting and installation process, after the roof grid shell is hoisted to the preset height, it needs to be moved horizontally in the air. After moving to the preset position, the angle and inclination of the roof grid shell need to be adjusted, and finally installed. In this process, the installation accuracy will be greatly affected by factors such as high-altitude hoisting, position adjustment, and its own heavy weight, thereby reducing the installation accuracy of the roof grid shell. Summary of the invention

[0005] In view of the defects existing in the prior art, the technical problem solved by the present invention is: how to improve the installation accuracy of the roof grid shell.

[0006] To achieve the above objectives, in a first aspect, the present invention provides a roof lattice shell construction structure, comprising: A first column group, comprising a plurality of first steel columns, wherein the plurality of first steel columns are inserted in the ground in a circumferential manner to form a ring; A first truss group, comprising a plurality of first trusses connected in sequence, the first truss group being erected on top of the first column group; A hoisting platform is laid on the top of the first truss group. A plurality of hoisting assemblies are arranged on the hoisting platform. The ring formed by the hoisting assemblies is concentric with the ring formed by the first column group. The hoisting assemblies are used to hoist the roof structure located inside the ring of the first column group. The roof structure includes a roof grid shell, a second truss group and a transfer beam, and the roof grid shell is erected on the top of the second truss group through the transfer beam.

[0007] By adopting the above technical scheme, the hoisting platform is built around the first column group and the first truss group at a preset position, and the hoisting components are installed around the hoisting platform. The roof structure is first built on the ring-shaped ground, and then all the hoisting components are synchronously hoisted until the roof structure reaches the preset height. At the same time, the inclination of the roof structure can be adjusted by controlling the different laying-out lengths of the hoisting components. Finally, the second truss group of the roof structure is fixed to the first truss group, the first column group and the first truss group will become part of the preset building, and the remaining temporary equipment will be removed. Therefore, when the building structure is building the roof grid shell, the roof grid shell only needs to move in the vertical direction, and does not need to move in the horizontal direction, and the inclination of the roof grid shell can be adjusted, thereby improving the installation accuracy of the roof grid shell.

[0008] In combination with the first aspect, in one embodiment, a slide is provided around the top of the lifting platform, the ring shape of the slide is concentric with the ring shape formed by the first column group, and a moving component is provided between the lifting component and the lifting platform, and the moving component is used to move the lifting component along the slide.

[0009] By adopting the above technical solution, after the roof structure reaches a preset height, the hoisting assembly moves along the slide through the moving assembly. Since the ring shape of the slide is concentric with the ring shape formed by the first column group, that is, the ring shape of the slide is concentric with the ring shape of the roof structure, if the hoisting assembly moves synchronously, the angle of the roof structure can be adjusted. At the same time, it is ensured that the force in all directions of the roof structure is uniform, thereby further improving the installation accuracy of the roof grid shell.

[0010] In one embodiment, the slideway is divided into multiple sections, and the slideway is penetrated on the steel section of the first truss group, and a hoisting assembly is installed in each section of the slideway.

[0011] By adopting the above technical solution, the hoisting platform is grooved and the slide is set on the steel section of the first truss group, so that the fulcrum of the hoisting assembly is the first truss group, thereby improving the stability of the hoisting assembly during movement, and the hoisting assemblies are respectively set in a section of the slide to avoid excessive displacement of the hoisting assembly and collision between two adjacent hoisting assemblies during movement, resulting in construction safety accidents, thereby improving the safety of the roof grid shell during the construction process.

[0012] In one embodiment, buffer components are respectively provided at both ends of the inner wall of each section of the slide, which are used to buffer the collision of the lifting component with the end of the inner wall of the slide.

[0013] By adopting the above technical solution, since the roof structure has a large dead weight, the inertia of the hoisting assembly is relatively large during the process of driving the roof structure to rotate, and there is a hidden danger that the hoisting assembly cannot stop moving in time. Therefore, buffer assemblies are respectively provided at both ends of the inner wall of each section of the slide, which can help the hoisting assembly stop and avoid direct collision between the hoisting assembly and the end of the inner wall of the slide, causing damage to the slide.

[0014] In one embodiment, the moving assembly includes a C-shaped ring, a first drive assembly and a mounting plate, the C-shaped ring is sleeved on the steel section of the first truss group, and the C-shaped ring is arranged on the bottom surface of the mounting plate, the first drive assembly is arranged on the C-shaped ring, the first drive assembly is used to move the C-shaped ring along the steel section of the first truss group, and the lifting assembly is installed on the top surface of the mounting plate.

[0015] By adopting the above technical solution, the first driving group drives the C-shaped ring to move along the steel section of the first truss group, thereby driving the lifting assembly located on the top surface of the mounting plate to move. During the movement, the C-shaped ring is sleeved on the steel section of the first truss group to avoid falling off during the movement, and setting the ring to a C shape can avoid the ring from colliding with the steel structure connected to the bottom of the steel section, thereby enabling continuous movement.

[0016] In one embodiment, a connecting base is provided at the outermost periphery of the second truss group, and the second truss of the second truss group is connected to the first bolt hole of the connecting base by a bolt assembly, and the second bolt hole of the connecting base is selectively detachably installed with a lifting connection assembly or a third truss, and the lifting connection assembly includes a panel, a lifting fixture and a connecting member, the connecting member is provided on one side of the panel, and the connecting member is threadedly connected to a connecting seat provided on the connecting base, and the lifting fixtures are evenly distributed on the other side of the panel, and the lifting fixtures are used for detachable connection between the panel and the lifting assembly, and a third bolt hole is provided on the panel, and the third bolt hole is connected to the second bolt hole by a bolt assembly.

[0017] By adopting the above technical solution, when the angle of the roof structure needs to be adjusted, the hoisting connection assembly is connected to the connection base, that is, firstly connected to the connection seat through the connection piece, and then the third bolt hole is aligned with the second bolt hole one by one, connected through the bolt assembly, and multiple lifting ropes are lowered from the hoisting assembly and bound to the hoisting fixtures of each panel. When the roof structure is rotated, the lifting ropes between the hoisting assembly and the hoisting fixtures are tightened in advance, further improving the stability of the connection between the hoisting assembly and the second truss group, avoiding the disconnection of the connected lifting ropes when the roof structure rotates, thereby further improving the safety of construction; After the roof structure is rotated to the preset position, it is necessary to fix the roof structure and the first truss group, then the lifting connection assembly is removed, and the third truss is connected to the first truss of the first truss group through the second bolt hole and the bolt assembly on the connecting base, and the third truss is welded to the first truss of the first truss group. This design not only improves the stability of the connection between the trusses, but also the second truss group does not need to be fixed to the first truss group in the later stage. The size of the second truss group is made too large during production, resulting in the second truss group being too close to the built structure when the second truss group moves upward and rotates, posing a construction safety hazard, thereby further improving the safety of construction.

[0018] In one embodiment, a plurality of positioning rails are provided on the inner periphery of the first truss group, and the positioning rails are used for positioning the third truss.

[0019] By adopting the above technical solution, after the roof structure is rotated to the preset position, the third truss is installed on the connecting base. In order to further improve the accuracy of positioning, a positioning guide rail is set at the pre-welding position between the first truss group and the third truss. Whether the roof structure has been adjusted to the preset angle is determined by whether the third truss is aligned with the positioning guide rail.

[0020] In one embodiment, a temporary support rod is rotatably provided on the first steel column, one end of the temporary support rod is rotatably connected with the connection point between the temporary support rod and the first steel column as the origin, and the first truss and the lifting platform can be detachably connected to the other end of the temporary support rod.

[0021] By adopting the above technical scheme, a temporary support rod is rotatably provided on the first steel column and can be used for support in different construction processes. When the roof structure is hoisted, the temporary support rod is adjusted and connected to the hoisting platform to improve the bearing capacity of the hoisting platform. When the second truss group is connected to the first truss group, the temporary support rod is adjusted and connected to the first truss to improve the stability during the connection between the two and reduce construction errors. A triangular structure is formed between the first steel column, the temporary support rod and the hoisting platform, or between the first steel column, the temporary support rod and the first truss to further improve stability.

[0022] In one embodiment, two temporary support rods are disposed on each of the first steel columns, and the other ends of two adjacent temporary support rods located on different first steel columns are fixedly connected to form a temporary fixed node.

[0023] By adopting the above technical solution, two adjacent temporary support rods located on different first steel columns can support each other, thereby further improving the supporting effect of the temporary support rods.

[0024] In a second aspect, the present invention provides a method for constructing a roof lattice shell, comprising the following steps: Providing a construction structure for the roof lattice shell; Building a first column group at a preset position, wherein the first column group is ring-shaped; erecting a first truss group on the first column group; Lay a hoisting platform on the top of the first truss group, and surround and set the hoisting components on the hoisting platform; The second truss group is laid on the inner ground of the ring formed by the first column group, the transfer beam is installed on the second truss group, and the roof grid shell is built one by one on the transfer beam in the form of unit grid shells to form a roof structure; The roof structure is lifted upward along the annular inner wall of the first column group by the lifting assembly until the roof structure reaches a preset height, the lifting assembly is moved along the slide on the lifting platform until the roof structure is rotated to a preset angle, and a second column group for supporting the second truss group is provided at the bottom of the second truss group, and the second truss group is fixedly connected to the first truss group.

[0025] By adopting the above technical solution, the hoisting platform is built around the first column group and the first truss group at a preset position, and the hoisting components are installed around the hoisting platform. The roof structure is first built on the ring-shaped ground, and then all the hoisting components are synchronously hoisted until the roof structure reaches the preset height. At the same time, the inclination of the roof structure can be adjusted by controlling the different laying-out lengths of the hoisting components. After the roof structure reaches the preset height, the hoisting component moves along the slide through the moving component. Because the ring shape of the slide is concentric with the ring shape formed by the first column group, that is, the ring shape of the slide is concentric with the roof The ring-shaped concentric structure of the structure, if the hoisting components move synchronously, the angle of the roof structure can be adjusted. At the same time, the force in all directions of the roof structure is guaranteed to be uniform, thereby further improving the installation accuracy of the roof grid shell. Finally, the second truss group of the roof structure is fixed to the first truss group, the first column group and the first truss group will become part of the preset building, and the remaining temporary equipment will be removed. Therefore, when the building structure is building the roof grid shell, the roof grid shell only needs to move in the vertical direction, and does not need to move in the horizontal direction, and the inclination of the roof grid shell can be adjusted, thereby improving the installation accuracy of the roof grid shell.

[0026] In summary, the present invention includes at least one of the following beneficial technical effects: 1. By setting up the hoisting assembly on the first column group and the first truss group, and building the roof structure on the ring-shaped internal ground of the first column group, the roof structure only needs to be hoisted in the horizontal direction, and the inclination of the roof grid shell can be adjusted, and finally connected with the first truss group, thereby improving the installation accuracy of the roof grid shell; 2. Combine the moving components and slideways that drive the lifting components to move with the steel sections of the first truss group to improve the stability of the lifting components during movement and improve the safety of construction; 3. The temporary support rod is rotated with the connection point between the temporary support rod and the first steel column as the origin, thereby improving the applicability of the temporary support rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a roof structure and a building structure according to an embodiment of the present invention; Figure 2 A schematic diagram of a structure for building a structure according to an embodiment of the present invention; Figure 3 for Figure 2 A front view of Figure 4 This is a schematic diagram of the first structure of the hoisting platform according to an embodiment of the present invention; Figure 5 This is a schematic diagram of a second structure of a hoisting platform according to an embodiment of the present invention; Figure 6 for Figure 5 A magnified view of part A; Figure 7 An exploded view of a connection base and a hoisting connection assembly according to an embodiment of the present invention; Figure 8 for Figure 7 Rear view of.

[0028] In the figure: 1-first column group, 2-first truss group, 3-hoisting platform, 4-hoisting assembly, 5-slide, 6-second truss group, 7-conversion beam, 8-roof grid shell, 9-temporary support rod, 10-buffer assembly, 11-connecting base, 111-first bolt hole, 112-connecting seat, 113-second bolt hole, 12-hoisting connection assembly, 121-panel, 122-hoisting fixing piece, 123-connecting piece, 124-third bolt hole. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0030] The construction structure of the roof lattice shell 8 in the embodiment of the present invention is shown in FIG. Figure 1-3 As shown, the construction structure includes a first column group 1, which includes a plurality of first steel columns, and the plurality of first steel columns are inserted in the ground in a circumferential manner, and the top view formed by all the first steel columns is a ring; a first truss group 2 is set on the top of the first column group 1, and the first truss group 2 includes a plurality of first trusses connected in sequence, and the top view formed by the first trusses is a ring, and is concentric with the ring formed by the first steel columns, so the first truss should be an arc truss; a hoisting platform 3 is laid on the top of the first truss group 2, and a plurality of hoisting components 4 are arranged on the hoisting platform 3, and the ring formed by the hoisting components 4 is concentric with the ring formed by the first column group 1, and the hoisting components 4 are used to hoist the roof structure located inside the ring of the first column group 1, wherein the roof structure includes a roof grid shell 8, a second truss group 6 and a conversion beam 7, and the roof grid shell 8 is erected on the top of the second truss group 6 through the conversion beam 7, and the construction of the roof structure is located on the ground inside the ring of the first column group 1.

[0031] It can be seen that the present invention builds the hoisting platform 3 around the preset position through the first column group 1 and the first truss group 2, lays the hoisting platform 3 on the first truss group 2, and installs the hoisting components 4 around the hoisting platform 3, first builds the roof structure on the ring-shaped ground, and then hoists it synchronously through all the hoisting components 4. The hoisting components 4 can be evenly distributed on the hoisting platform 3 to make the force of the roof structure uniform during hoisting, and hoist it to the preset height of the roof structure. At the same time, the inclination of the roof structure can be adjusted by controlling the different laying-out lengths of the hoisting components 4 to meet different construction requirements, and the detection instrument can be used to detect whether the roof structure is at the preset inclination, and then fine-tuning can be performed to reduce the error caused during the hoisting process; Finally, the second truss group 6 of the roof structure is fixed to the first truss group 2, and the first column group 1 and the first truss group 2 will become part of the preset building, that is, the first column group 1 is used as the outermost steel column of the preset building, and the first truss group 2 is used as the outermost truss of the preset building, and the roof grid shell 8 is supplemented on the upper part of the first truss group 2. The supplemented roof grid shell 8 and the roof grid shell 8 of the roof structure form a whole, and the rest of the temporary equipment is removed before supplementing the roof grid shell 8. The temporary equipment includes the hoisting platform 3 and the hoisting assembly 4. Therefore, when the building structure is building the roof grid shell 8, the roof grid shell 8 only needs to move in the vertical direction, and does not need to move in the horizontal direction, so as to avoid the adverse effects of shaking during horizontal movement on the construction, and the inclination of the roof grid shell 8 can be adjusted, so as to improve the installation accuracy of the roof grid shell 8.

[0032] It should be noted that the design of the building structure not only improves the installation accuracy of the roof grid shell 8, but also shortens the construction period. The reason is that the construction scheme of the present invention does not need to build higher lifting equipment to meet the lifting of the roof structure, and because the first column group 1 and the first truss group 2 will become part of the preset building, there is no need to dismantle the first column group 1 and the first truss group 2 in the building structure later.

[0033] Preferably, see Figure 4 As shown, a slideway 5 is provided around the top of the lifting platform 3, and the ring shape of the slideway 5 is concentric with the ring shape formed by the first column group 1. A moving component is provided between the lifting component 4 and the lifting platform 3, and the moving component is used to move the lifting component 4 along the slideway 5.

[0034] Specifically, after the roof structure reaches a preset height, the hoisting assembly 4 moves along the slide 5 through the moving assembly. Since the ring shape of the slide 5 is concentric with the ring shape formed by the first column group 1, that is, the ring shape of the slide 5 is concentric with the ring shape of the roof structure, if the hoisting assembly 4 moves synchronously, the angle of the roof structure can be adjusted. At the same time, it is ensured that the force in all directions of the roof structure is still uniform, thereby further improving the installation accuracy of the roof grid shell 8.

[0035] It should be noted that in order to prevent the lifting component 4 from moving when lifting the roof structure, the moving component has a locking function to ensure the stability of the lifting component 4 during the lifting process; because the weight of the roof structure is large, during the rotation process, the rotation angle is small and the speed is slow, to ensure that the roof structure can stop rotating safely and to ensure that no damage is caused to other structures.

[0036] For further information, see Figure 5 As shown, the slideway 5 is composed of multiple sections, and the slideway 5 is penetrated on the steel section of the first truss group 2 , and a hoisting assembly 4 is installed in each section of the slideway 5 .

[0037] Specifically, the lifting platform 3 is grooved through, and the slide 5 is set on the steel section of the first truss group 2, so that the fulcrum of the lifting component 4 is the first truss group 2, thereby improving the stability of the lifting component 4 during movement, and the slide 5 is divided into multiple arc grooves, and the arc grooves are evenly distributed on the circumference of the slide 5, and the lifting components 4 are respectively set in a section of the slide 5, for example, 5 arc grooves and lifting components 4 are set, or 6 arc grooves and lifting components 4 are set, to avoid excessive displacement of the lifting component 4 and avoid collision between two adjacent lifting components 4 during movement, resulting in construction safety accidents, thereby improving the safety of the roof grid shell 8 during the construction process.

[0038] For further information, see Figure 6 As shown, buffer components 10 are respectively provided at both ends of the inner wall of each section of the slide 5, which are used to buffer the collision of the lifting component 4 on the inner wall end of the slide 5. The buffer component 10 can be a high-strength spring, or a rebound component with large rebound strength and not easy to be damaged, such as a spring washer.

[0039] Specifically, since the dead weight of the roof structure is relatively large, the hoisting assembly 4 bears the weight of the roof structure during the process of driving the roof structure to rotate. Therefore, the inertia of the hoisting assembly 4 during the movement is relatively large, and there is a hidden danger that the hoisting assembly 4 cannot stop moving in time. Therefore, buffer assemblies 10 are respectively provided at both ends of the inner wall of each section of the slide 5 (the hoisting assembly 4 can move clockwise or counterclockwise), which can help the hoisting assembly 4 stop and avoid direct collision between the hoisting assembly 4 and the inner wall end of the slide 5, causing damage to the slide 5.

[0040] Furthermore, a specific structure of a mobile component is provided: The moving assembly includes a C-shaped ring, a first driving assembly and a mounting plate. The C-shaped ring is mounted on the arc-shaped steel of the first truss group 2, and the C-shaped ring is arranged on the bottom surface of the mounting plate. The first driving assembly is arranged on the C-shaped ring. The first driving assembly is used to move the C-shaped ring along the arc-shaped steel of the first truss group 2. The lifting assembly 4 is installed on the top surface of the mounting plate.

[0041] Specifically, the first driving group drives the C-shaped ring to move along the arc-shaped steel of the first truss group 2, thereby driving the lifting assembly 4 located on the top surface of the mounting plate to move. During the movement, the C-shaped ring is sleeved on the arc-shaped steel of the first truss group 2 to avoid falling off during the movement, and setting the ring to a C shape can avoid the ring from colliding with the steel structure connected to the bottom of the arc-shaped steel, thereby enabling continuous movement.

[0042] Preferably, another specific structure of a moving component is provided: the moving component includes a moving wheel, a second drive component and a mounting plate, the bottom surface of the mounting plate is provided with a moving wheel, the top surface of the mounting plate is provided with a lifting component 4, the second drive component is provided on the moving wheel, and the second drive component is used to move the moving wheel along the slide 5.

[0043] Specifically, the second driving component drives the moving wheel to move along the slide 5, thereby driving the lifting component 4 located on the top surface of the mounting plate to move. The number and distribution of the moving wheels can be designed according to actual needs. If the number of columns of the moving wheels is multiple, the number of grooves in the slide 5 must be the same as the number of columns of the moving wheels.

[0044] Preferably, see Figure 7 , 8 As shown, a connecting base 11 is provided at the outermost portion of the second truss group 6, and the second truss of the second truss group 6 is connected to the first bolt hole 111 of the connecting base 11 through a bolt assembly, and the second bolt hole 113 of the connecting base 11 is selectively and detachably installed with a hoisting connection assembly 12 or a third truss, and the hoisting connection assembly 12 includes a panel 121, a hoisting fixture 122 and a connecting member 123, the connecting member 123 is provided on one side of the panel 121, and the connecting member 123 is threadedly connected to the connecting seat 112 opened on the connecting base 11, and the hoisting fixtures 122 are evenly distributed on the other side of the panel 121, and the hoisting fixtures 122 are used for the detachable connection between the panel 121 and the hoisting assembly 4, and a third bolt hole 124 is opened on the panel 121, and the third bolt hole 124 is connected to the second bolt hole 113 through a bolt assembly.

[0045] Specifically, when the angle of the roof structure needs to be adjusted, the lifting connection component 12 is connected to the connecting base 11, that is, firstly threadedly connected to the connecting seat 112 through the connecting piece 123, and then the third bolt hole 124 is aligned with the second bolt hole 113 one by one, and connected through the bolt assembly, a plurality of lifting ropes are lowered from the lifting component 4, and bound to the lifting fixture 122 of each panel 121. When the roof structure is rotated, the lifting rope between the lifting component 4 and the lifting fixture 122 is tightened in advance. Because the lifting component 4 is fixedly connected to the lifting fixture 122, the lifting fixture 122 is fixedly connected to the connecting base 11, and the connecting base 11 is fixedly connected to the second truss group 6, the stability of the connection between the lifting component 4 and the second truss group 6 is further improved, and the connection rope is prevented from being disconnected when the roof structure rotates, thereby further improving the safety of construction.

[0046] Furthermore, a plurality of positioning rails are provided on the inner periphery of the first truss group 2, and the positioning rails are used for positioning the third truss.

[0047] Specifically, after the roof structure is rotated to the preset position, the third truss is installed on the connecting base 11. In order to further improve the accuracy of positioning, a positioning guide rail is set at the pre-welding position of the first truss group 2 and the third truss. Whether the roof structure has been adjusted to the preset angle is determined by whether the third truss is aligned with the positioning guide rail.

[0048] It should be noted that because the positioning guide rail is inside the first truss group 2, it occupies part of the space. During the installation of the roof structure, it is necessary to lift the roof structure appropriately in advance to avoid collision between the third truss and the positioning guide rail. When the third truss is located directly above the positioning guide rail, the roof structure is placed downward as a whole, and the third truss also moves downward with the roof structure and is finally placed on the positioning guide rail, which not only facilitates the positioning of the third truss, but also provides an erection function for the third truss.

[0049] Preferably, see Figure 2 , 3 As shown, a temporary support rod 9 is rotatably provided on the first steel column, one end of the temporary support rod 9 is rotatably connected with the connection point between it and the first steel column as the origin, and the first truss and the lifting platform 3 can be selectively connected to the other end of the temporary support rod 9 in a detachable manner, the other end of the temporary support rod 9 can be detachably connected to the first truss, or the other end of the temporary support rod 9 can be detachably connected to the lifting platform 3.

[0050] Specifically, a temporary support rod 9 is rotatably provided on the first steel column and can be used for support in different construction processes. When the roof structure is lifted, the temporary support rod 9 is adjusted and connected to the lifting platform 3 to improve the bearing capacity of the lifting platform 3. When the second truss group 6 is connected to the first truss group 2, the temporary support rod 9 is adjusted and connected to the first truss to improve the stability of the connection between the two and reduce construction errors. A triangular structure is formed between the first steel column, the temporary support rod 9 and the lifting platform 3, or between the first steel column, the temporary support rod 9 and the first truss to further improve stability.

[0051] For further information, see Figure 2 , 3 As shown, two temporary support rods 9 are arranged on each first steel column, and the other ends of two adjacent temporary support rods 9 located on different first steel columns are fixedly connected to form a temporary fixed node.

[0052] Specifically, two adjacent temporary support rods 9 located on different first steel columns can support each other, that is, the two temporary support rods 9 on the same first steel column are denoted as A and B, and the three adjacent first steel columns are denoted as C, D, and E respectively. The temporary support rod B of the first steel column C is fixedly connected to the temporary support rod A of the first steel column D, and the temporary support rod B of the first steel column D is fixedly connected to the temporary support rod A of the first steel column E. The two connected temporary support rods 9 can also form a triangular structure because their other ends are subjected to force on the first steel column, thereby further improving the supporting effect of the temporary support rods 9.

[0053] The method for constructing a roof lattice shell in an embodiment of the present invention comprises the following steps: Provide the structure of the roof grid shell; Building a first column group 1 at a preset position, wherein the first column group 1 is ring-shaped; Installing a first truss group 2 on the first column group 1; A hoisting platform 3 is laid on the top of the first truss group 2, and a hoisting assembly 4 is disposed on the hoisting platform 3 in a surrounding manner; The second truss group 6 is laid on the inner ground of the ring formed by the first column group 1, the transfer beam 7 is installed on the second truss group 6, and the roof grid shell 8 is built one by one on the transfer beam 7 in the form of unit grid shells to form a roof structure; The roof structure is lifted upward along the annular inner wall of the first column group 1 by the lifting assembly 4 until the roof structure reaches a preset height, and a second column group for supporting the second truss group 6 is provided at the bottom of the second truss group 6 to fix the second truss group 6 to the first truss group 2.

[0054] It can be seen that the present invention builds the hoisting platform 3 around the preset position through the first column group 1 and the first truss group 2, lays the hoisting platform 3 on the first truss group 2, and installs the hoisting components 4 around the hoisting platform 3, first builds the roof structure on the ring-shaped ground, and then hoists it synchronously through all the hoisting components 4. The hoisting components 4 can be evenly distributed on the hoisting platform 3 to make the force of the roof structure uniform during hoisting, and hoist it to the preset height of the roof structure. At the same time, the inclination of the roof structure can be adjusted by controlling the different laying-out lengths of the hoisting components 4 to meet different construction requirements, and the detection instrument can be used to detect whether the roof structure is at the preset inclination, and then fine-tuning can be performed to reduce the error caused during the hoisting process; Finally, the second truss group 6 of the roof structure is fixed to the first truss group 2, and the first column group 1 and the first truss group 2 will become part of the preset building, that is, the first column group 1 is used as the outermost steel column of the preset building, and the first truss group 2 is used as the outermost truss of the preset building, and the roof grid shell 8 is supplemented on the upper part of the first truss group 2. The supplemented roof grid shell 8 and the roof grid shell 8 of the roof structure form a whole, and the rest of the temporary equipment is removed before supplementing the roof grid shell 8. The temporary equipment includes the hoisting platform 3 and the hoisting assembly 4. Therefore, when the building structure is building the roof grid shell 8, the roof grid shell 8 only needs to move in the vertical direction, and does not need to move in the horizontal direction, so as to avoid the adverse effects of shaking during horizontal movement on the construction, and the inclination of the roof grid shell 8 can be adjusted, so as to improve the installation accuracy of the roof grid shell 8.

[0055] Preferably, after the roof structure reaches a preset height, before a second column group for supporting the second truss group 6 is provided at the bottom of the second truss group 6, the method further includes: The hoisting assembly 4 is moved along the slideway 5 on the hoisting platform 3 until the roof structure is rotated to a preset angle.

[0056] Specifically, after the roof structure reaches a preset height, the hoisting assembly 4 moves along the slide 5 through the moving assembly. Since the ring shape of the slide 5 is concentric with the ring shape formed by the first column group 1, that is, the ring shape of the slide 5 is concentric with the ring shape of the roof structure, if the hoisting assembly 4 moves synchronously, the angle of the roof structure can be adjusted. At the same time, it is ensured that the force in all directions of the roof structure is still uniform, thereby further improving the installation accuracy of the roof grid shell 8.

[0057] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A roof lattice shell construction structure, characterized in that: It includes: A first column group (1), comprising a plurality of first steel columns, the plurality of first steel columns being inserted in a circumferential manner on the ground to form a ring; A first truss group (2), comprising a plurality of first trusses connected in sequence, the first truss group (2) being erected on top of the first column group (1); A hoisting platform (3) is laid on the top of the first truss group (2), and a plurality of hoisting assemblies (4) are arranged on the hoisting platform (3). The ring formed by the hoisting assemblies (4) is concentric with the ring formed by the first column group (1), and the hoisting assemblies (4) are used to hoist the roof structure located inside the ring of the first column group (1); The roof structure comprises a roof grid shell (8), a second truss group (6) and a transfer beam (7), and the roof grid shell (8) is erected on the top of the second truss group (6) via the transfer beam (7).

2. The roof lattice shell construction structure according to claim 1, characterized in that: A slideway (5) is provided around the top of the hoisting platform (3), the ring shape of the slideway (5) being concentric with the ring shape formed by the first column group (1), and a moving component is provided between the hoisting component (4) and the hoisting platform (3), the moving component being used to move the hoisting component (4) along the slideway (5).

3. The roof lattice shell construction structure according to claim 2, characterized in that: The slideway (5) is composed of multiple sections, and the slideway (5) is arranged on the steel section of the first truss group (2), and a hoisting assembly (4) is installed in each section of the slideway (5).

4. The roof lattice shell construction structure according to claim 3, characterized in that: Buffer components (10) are respectively provided at both ends of the inner wall of each section of the slideway (5), and are used to buffer the collision of the lifting component (4) with the inner wall end of the slideway (5).

5. The roof lattice shell construction structure according to claim 3, characterized in that: The moving assembly comprises a C-shaped collar, a first driving assembly and a mounting plate, wherein the C-shaped collar is sleeved on the steel section of the first truss group (2), and the C-shaped collar is arranged on the bottom surface of the mounting plate, the first driving assembly is arranged on the C-shaped collar, and the first driving assembly is used to move the C-shaped collar along the steel section of the first truss group (2), and the hoisting assembly (4) is installed on the top surface of the mounting plate.

6. The roof lattice shell construction structure according to claim 1, characterized in that: A connecting base (11) is provided at the outermost portion of the second truss group (6); the second truss of the second truss group (6) is connected to the first bolt hole (111) of the connecting base (11) via a bolt assembly; the second bolt hole (113) of the connecting base (11) is selectively and detachably mounted with a hanging connecting assembly (12) or a third truss; the hanging connecting assembly (12) comprises a panel (121), a hanging fixture (122) and a connecting member (123); the connecting member (123) is provided on one side of the panel (121), and the connecting member (123) is threadedly connected to a connecting seat (112) provided on the connecting base (11); the hanging fixture (122) is evenly distributed on the other side of the panel (121); the hanging fixture (122) is used for detachably connecting the panel (121) to the hanging assembly (4); a third bolt hole (124) is provided on the panel (121), and the third bolt hole (124) is connected to the second bolt hole (113) via a bolt assembly.

7. The roof lattice shell construction structure according to claim 6, characterized in that: The inner periphery of the first truss group (2) is provided with a plurality of positioning guide rails, and the positioning guide rails are used for positioning the third truss.

8. The roof lattice shell construction structure according to claim 1, characterized in that: A temporary support rod (9) is rotatably provided on the first steel column, one end of the temporary support rod (9) is rotatably connected with the connection point between the temporary support rod and the first steel column as the origin, and the first truss and the hoisting platform (3) can be selectively detachably connected to the other end of the temporary support rod (9).

9. The roof lattice shell construction structure according to claim 8, characterized in that: Two temporary support rods (9) are arranged on each of the first steel columns, and the other ends of two adjacent temporary support rods (9) located on different first steel columns are fixedly connected to form a temporary fixed node.

10. A method for constructing a roof lattice shell, characterized in that: It includes the following steps: Providing a construction structure of a roof lattice shell as described in any one of claims 1 to 9; Building a first column group (1) at a preset position, wherein the first column group (1) is ring-shaped; Installing a first truss group (2) on the first column group (1); Laying a hoisting platform (3) on the top of the first truss group (2), and surrounding and arranging the hoisting assembly (4) on the hoisting platform (3); Laying a second truss group (6) on the inner ground of the ring formed by the first column group (1), installing a transfer beam (7) on the second truss group (6), and building a roof grid shell (8) one by one on the transfer beam (7) in the form of unit grid shells to form a roof structure; The roof structure is lifted upward along the annular inner wall of the first column group (1) by means of a lifting assembly (4) until the roof structure reaches a preset height, the lifting assembly (4) is moved along a slideway (5) on the lifting platform (3) until the roof structure rotates to a preset angle, a second column group for supporting the second truss group (6) is arranged at the bottom of the second truss group (6), and the second truss group (6) is fixedly connected to the first truss group (2).

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