A building structure and method of a roof net shell

Abstract

The application discloses a building structure and a building method of a roof net shell, and relates to the technical field of building engineering. The building structure of the roof net shell comprises a first column group, a first truss group and a hoisting platform. The first column group comprises a plurality of first steel columns which are inserted into the ground in a ring type. The first truss group comprises a plurality of first trusses which are connected in sequence and arranged on the top of the first column group. The hoisting platform is arranged on the top of the first truss group. A plurality of hoisting assemblies are arranged on the hoisting platform. The ring type formed by the hoisting assemblies and the ring type formed by the first column group have the same center. The hoisting assemblies are used for hoisting the roof structure inside the ring type of the first column group. When the roof net shell is built, the roof net shell only needs to move in the vertical direction and does not need to move in the horizontal direction, so that the adverse effects caused by the shaking of the horizontal movement on the construction are avoided, and the inclination of the roof net shell can be adjusted, so that the installation precision of the roof net shell is improved.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and in particular to a roof grid shell construction structure and construction method. Background Technology

[0002] With the rapid development of the construction industry and the ever-changing technology, the demand for a series of public buildings such as stadiums, airport terminals, exhibition halls, and waiting halls is increasing. Unlike previous building structures, the upper part of these buildings is an integral structure of large-span trusses and roof grid shells. The construction of the roof grid shell involves manually welding steel to pre-set drum-shaped nodes at high altitudes to form the roof grid shell structure. However, multiple steel bars need to be welded to a single drum-shaped node, requiring construction workers to perform long-term high-altitude operations. This not only poses a high risk to construction but also significantly affects the welding accuracy due to the working environment.

[0003] Existing technologies already include some large-span truss and roof shell integrated structures. For example, invention patent CN114892813B discloses a large-span building main support steel structure and construction method, relating to the field of large-span buildings. This large-span building main support steel structure and construction method includes a main arch truss, on which a single-layer grid shell is installed and connected. After the main arch truss is installed, the single-layer grid shell is installed. The welding of the main arch truss's insert members is performed through the inner walkway of the main arch truss. The large-span building main support steel structure and construction method provided by this invention differentiates the main arch truss and single-layer grid shell into multiple modules, quickly achieving assembly through a combination of component assembly, segmented hoisting, and insert member installation. Then, hoisting equipment is used to assist in the overall construction and installation, enabling the large-span building structure to be constructed quickly and stably, effectively shortening construction time and greatly ensuring the stability of the constructed building.

[0004] The aforementioned roof grid shell is constructed by assembling multiple unit grid shells on the ground, and then hoisting them to the top of the large-span truss for installation. 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 it to the preset position, the angle and inclination of the roof grid shell also need to be adjusted before final installation. The installation accuracy is significantly affected by factors such as high-altitude hoisting, position adjustment, and its own weight, thus reducing the installation accuracy of the roof grid shell. Summary of the Invention

[0005] In view of the deficiencies in the existing technology, the technical problem solved by the present invention is: how to improve the installation accuracy of roof mesh shells.

[0006] To achieve the above objectives, in a first aspect, the roof mesh shell construction structure provided by the present invention includes:

[0007] The first column group includes multiple first steel columns, which are inserted into the ground in a ring shape.

[0008] The first truss assembly comprises multiple first trusses connected in sequence, and the first truss assembly is erected on top of the first column assembly;

[0009] The hoisting platform is laid on top of the first truss group. Multiple hoisting components are installed on the hoisting platform. The ring formed by the hoisting components is concentric with the ring formed by the first column group. The hoisting components are used to hoist the roof structure located inside the ring of the first column group.

[0010] The roof structure includes a roof grid shell, a second truss assembly, and a transfer beam. The roof grid shell is erected on top of the second truss assembly via the transfer beam.

[0011] By adopting the above technical solution, the hoisting platform is erected around the first column group and the first truss group at a preset position, and hoisting components are installed around the hoisting platform. The roof structure is first erected on the ring-shaped ground, and then all hoisting components are used to hoist the roof structure synchronously until it reaches the preset height. At the same time, the inclination of the roof structure can be adjusted by controlling different laying 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 dismantled. Therefore, when erecting the roof grid shell, the roof grid shell only needs to be moved vertically and does not need to be moved horizontally. Moreover, the inclination of the roof grid shell can be adjusted, thereby improving the installation accuracy of the roof grid shell.

[0012] In conjunction with the first aspect, in one embodiment, a slide rail is provided around the top of the hoisting platform, the annular shape of the slide rail being concentric with the annular shape formed by the first column group, and a moving component is provided between the hoisting component and the hoisting platform, the moving component being used to move the hoisting component along the slide rail.

[0013] By adopting the above technical solution, after the roof structure reaches the preset height, the hoisting component moves along the slide via the moving component. 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 component moves synchronously, the angle of the roof structure can be adjusted. At the same time, it ensures that the force on the roof structure in all directions is still uniform, thereby further improving the installation accuracy of the roof grid shell.

[0014] In one embodiment, the slide is in multiple sections and is installed on the steel section of the first truss group, with a hoisting assembly installed in each section of the slide.

[0015] By adopting the above technical solution, the hoisting platform is slotted through and the slide is set on the steel of the first truss group. Thus, the load point of the hoisting component is the first truss group, thereby improving the stability of the hoisting component during movement. Furthermore, the hoisting components are each set in a slide section to avoid excessive displacement of the hoisting components and collisions between two adjacent hoisting components during movement, which could lead to construction safety accidents. This improves the safety of the roof grid shell during the construction process.

[0016] In one embodiment, each section of the slide is provided with a buffer assembly at both ends of its inner wall to buffer the impact of the hoisting assembly on the inner wall end of the slide.

[0017] By adopting the above technical solution, since the roof structure has a large self-weight, the hoisting component has a large inertia when it drives the roof structure to rotate. There is a risk that the hoisting component may not be able to stop moving in time. Therefore, buffer components are set at both ends of the inner wall of each section of the slide to help the hoisting component stop and to avoid direct collision between the hoisting component and the inner wall end of the slide, which would damage the slide.

[0018] In one embodiment, the moving component includes a C-shaped collar, a first driving component, and a mounting plate. The C-shaped collar is sleeved on the steel section of the first truss group and is located on the bottom surface of the mounting plate. The first driving component is located on the C-shaped collar and is used to move the C-shaped collar along the steel section of the first truss group. The hoisting component is mounted on the top surface of the mounting plate.

[0019] By adopting the above technical solution, the first drive group drives the C-shaped collar to move along the steel section of the first truss group, thereby driving the hoisting component located on the top surface of the mounting plate to move. During the movement, the C-shaped collar is fitted onto the steel section of the first truss group to prevent it from falling off during the movement. Furthermore, by setting the collar to C-shape, collisions between the collar and the steel structure connected to the bottom of the steel section can be avoided, thus enabling continuous movement.

[0020] In one embodiment, a connecting base is provided on the outermost periphery of the second truss group. The second truss of the second truss group is connected to the first bolt hole of the connecting base through a bolt assembly. The second bolt hole of the connecting base can be detachably installed with either a hoisting connecting assembly or a third truss. The hoisting connecting assembly includes a panel, a hoisting fixing member, and a connector. The connector is located on one side of the panel and is threadedly connected to a connecting seat on the connecting base. The hoisting fixing members are evenly distributed on the other side of the panel and are used for detachable connection between the panel and the hoisting assembly. A third bolt hole is provided on the panel and is connected to the second bolt hole through a bolt assembly.

[0021] By adopting the above technical solution, when the roof structure needs to be adjusted in angle, the hoisting connection assembly is connected to the connection base. First, the connection is made to the connection seat by threaded connection of the connector, then the third bolt hole is aligned with the second bolt hole one by one and connected by bolt assembly. Multiple hoisting ropes are lowered from the hoisting assembly and bound to the hoisting fixing parts of each panel. When the roof structure is rotated, the hoisting ropes between the hoisting assembly and the hoisting fixing parts are tightened in advance, which further improves the stability of the connection between the hoisting assembly and the second truss group and avoids the connection of the hoisting ropes from breaking when the roof structure is rotated, thereby further improving the safety of construction.

[0022] After the roof structure rotates to the preset position, it is necessary to fix the roof structure to the first truss group. This involves removing the hoisting connection components and connecting the third truss to the connecting base using the second bolt holes and bolt assemblies. The third truss is then welded to the first truss of the first truss group. This design not only improves the stability of the connection between trusses, but also avoids making the second truss group too large during fabrication due to the later fixation to the first truss group. This prevents the second truss group from being too close to the erected structure during upward movement and rotation, which could pose a construction safety hazard, thus further improving construction safety.

[0023] In one embodiment, the inner perimeter of the first truss assembly is provided with multiple positioning guide rails, which are used for positioning the third truss.

[0024] 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 positioning accuracy, a positioning guide rail is set at the pre-welded joint between the first truss group and the third truss. Whether the third truss is aligned with the positioning guide rail is used to determine whether the roof structure has been adjusted to the preset angle.

[0025] In one embodiment, a temporary support rod is rotatably mounted on the first steel column. One end of the temporary support rod is rotatably connected to the connection point between itself and the first steel column as the origin. The first truss and the hoisting platform can be detachably connected to the other end of the temporary support rod.

[0026] By adopting the above technical solution, a temporary support rod can be rotatably installed on the first steel column, and it can be used for support in different construction processes. When the roof structure is being lifted, the temporary support rod is adjusted and connected to the lifting platform to improve the load-bearing capacity of the lifting platform. When the second truss group is being connected to the first truss group, the temporary support rod is adjusted and connected to the first truss to improve the stability of the connection process and reduce construction errors. A triangular structure is formed between the first steel column, the temporary support rod and the lifting platform, as well as between the first steel column, the temporary support rod and the first truss, further improving stability.

[0027] In one embodiment, each of the first steel columns is provided with two temporary support rods, 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.

[0028] 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 support effect of the temporary support rods.

[0029] Secondly, the method for constructing a roof mesh shell provided by the present invention includes the following steps:

[0030] Provide the aforementioned roof grid shell construction structure;

[0031] The first column group is erected at the preset location, wherein the first column group is in the shape of a ring;

[0032] The first truss assembly is erected on the first column assembly;

[0033] A hoisting platform is laid on top of the first truss assembly, and the hoisting components are arranged around the hoisting platform;

[0034] 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 a unit grid shell to form the roof structure.

[0035] The roof structure is lifted upward along the annular inner wall of the first column group using a hoisting assembly until the roof structure reaches the preset height. The hoisting assembly is then moved along the slide on the hoisting platform until the roof structure rotates to the preset angle. A second column group is set at the bottom of the second truss group to support the second truss group, and the second truss group is fixedly connected to the first truss group.

[0036] By adopting the above technical solution, the hoisting platform is erected in a predetermined position around the first column group and the first truss group. Hoisting components are installed around the hoisting platform. The roof structure is first constructed on the annular ground, and then all hoisting components are used to hoist the roof structure synchronously until it reaches the predetermined height. Simultaneously, the inclination of the roof structure can be adjusted by controlling different laying lengths of the hoisting components. After the roof structure reaches the predetermined height, the hoisting components move along the sliding track via the moving components. Because the annular shape of the sliding track is concentric with the annular shape formed by the first column group, the annular shape of the sliding track and the roof... The ring-shaped structure is concentric with the center of the circle. If the hoisting components move synchronously, the angle of the roof structure can be adjusted. At the same time, it ensures that the force on the roof structure is uniform in all directions, 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 pre-designed building. The remaining temporary equipment is removed. Therefore, when constructing the roof grid shell, the roof grid shell only needs to move vertically and does not need to move horizontally. Moreover, the inclination of the roof grid shell can be adjusted, thereby improving the installation accuracy of the roof grid shell.

[0037] In summary, the present invention has at least one of the following beneficial technical effects:

[0038] 1. By installing hoisting components on the first column group and the first truss group, and building the roof structure on the ground inside the ring 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. Finally, it can be connected to the first truss group, thereby improving the installation accuracy of the roof grid shell.

[0039] 2. The moving components and slides that drive the hoisting components to move are combined with the steel sections of the first truss group to improve the stability of the hoisting components during movement and to improve the safety of construction.

[0040] 3. The temporary support rod rotates around 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. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the roof structure and the erection structure according to an embodiment of the present invention;

[0042] Figure 2 This is a structural diagram illustrating the construction of the structure according to an embodiment of the present invention;

[0043] Figure 3 for Figure 2 The front view;

[0044] Figure 4 This is a schematic diagram of the first structure of the hoisting platform according to an embodiment of the present invention;

[0045] Figure 5 This is a schematic diagram of a second structure of the hoisting platform according to an embodiment of the present invention;

[0046] Figure 6 for Figure 5 Enlarged view of part A;

[0047] Figure 7 This is an exploded view of the connecting base and the hoisting connection assembly according to an embodiment of the present invention;

[0048] Figure 8 for Figure 7 Rear view.

[0049] In the diagram: 1-First column group, 2-First truss group, 3-Lifting platform, 4-Lifting component, 5-Slide rail, 6-Second truss group, 7-Transfer beam, 8-Roof grid shell, 9-Temporary support rod, 10-Buffer component, 11-Connecting base, 111-First bolt hole, 112-Connecting seat, 113-Second bolt hole, 12-Lifting connection component, 121-Panel, 122-Lifting fixing component, 123-Connecting component, 124-Third bolt hole. Detailed Implementation

[0050] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0051] The construction structure of the roof mesh shell 8 in this embodiment of the invention is shown in the following figure. Figure 1-3 As shown, the structure includes a first column group 1, which comprises multiple first steel columns inserted around the ground. The top view of all the first steel columns forming the ring is circular. A first truss group 2 is erected on top of the first column group 1. The first truss group 2 comprises multiple first trusses connected in sequence. The top view of the first trusses forming the ring is circular and concentric with the ring formed by the first steel columns. Therefore, the first trusses should be arc-shaped trusses. A hoisting platform 3 is laid on top of the first truss group 2. Multiple hoisting components 4 are installed on the hoisting platform 3. The ring formed by the hoisting components 4 is concentric with the ring formed by the first column group 1. The hoisting components 4 are used to hoist the roof structure located inside the ring of the first column group 1. The roof structure includes a roof shell 8, a second truss group 6, and a transfer beam 7. The roof shell 8 is erected on top of the second truss group 6 through the transfer beam 7. The construction of the roof structure is carried out on the ground inside the ring of the first column group 1.

[0052] Therefore, it can be seen that the present invention constructs the hoisting platform 3 around the first column group 1 and the first truss group 2 at a preset position, lays the hoisting platform 3 on the first truss group 2, and installs the hoisting components 4 around the hoisting platform 3. The roof structure is first constructed on the ring-shaped ground, and then all the hoisting components 4 are lifted synchronously. The hoisting components 4 can be evenly distributed on the hoisting platform 3 to ensure that the roof structure is evenly stressed during hoisting and is lifted to the preset height of the roof structure. At the same time, the inclination of the roof structure can be adjusted by controlling different laying lengths of the hoisting components 4 to meet different construction requirements. Furthermore, the roof structure can be detected by a detection instrument to determine whether it is at the preset inclination and then fine-tuned to reduce the error caused during the hoisting process.

[0053] Finally, the second truss group 6 of the roof structure is fixed to the first truss group 2. The first column group 1 and the first truss group 2 will become part of the pre-designed building, that is, the first column group 1 serves as the outermost steel column of the pre-designed building, and the first truss group 2 serves as the outermost truss of the pre-designed building. A roof mesh shell 8 is added on top of the first truss group 2. The added roof mesh shell 8 forms an integral whole with the roof mesh shell 8 of the roof structure. All other temporary equipment, including the hoisting platform 3 and hoisting components 4, is removed before adding the roof mesh shell 8. Therefore, when constructing the roof mesh shell 8, the roof mesh shell 8 only needs to be moved vertically and does not need to be moved horizontally, thus avoiding the adverse effects of swaying during horizontal movement on construction. Furthermore, the tilt of the roof mesh shell 8 can be adjusted, thereby improving the installation accuracy of the roof mesh shell 8.

[0054] It should be noted that the design of this construction structure not only improves the installation accuracy of the roof shell 8, but also reduces the construction cycle. This is because the construction scheme of the present invention does not require the construction of higher hoisting equipment to meet the hoisting of the roof structure. Furthermore, since the first column group 1 and the first truss group 2 will become part of the pre-designed building, it is not necessary to dismantle the first column group 1 and the first truss group 2, which are part of the construction structure, in the future.

[0055] Preferred, see Figure 4 As shown, a slide rail 5 is provided around the top of the hoisting platform 3. The annular shape of the slide rail 5 is concentric with the annular shape formed by the first column group 1. A moving component is provided between the hoisting assembly 4 and the hoisting platform 3. The moving component is used to move the hoisting assembly 4 along the slide rail 5.

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

[0057] It should be noted that, in order to prevent the lifting component 4 from moving during the lifting of 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 roof structure is heavy, the rotation angle is small and the speed is slow during the rotation process to ensure that the roof structure can safely stop rotating and to ensure that it does not cause damage to other structures.

[0058] Further, see Figure 5 As shown, the slide 5 is divided into multiple sections, and the slide 5 is installed on the steel of the first truss group 2. Each section of the slide 5 is equipped with a hoisting assembly 4.

[0059] Specifically, the hoisting platform 3 is slotted through, and the slide rail 5 is set on the steel of the first truss group 2, so that the load point of the hoisting component 4 is the first truss group 2, thereby improving the stability of the hoisting component 4 during movement. The slide rail 5 is divided into multiple arc-shaped grooves, and the arc-shaped grooves are evenly distributed on the circumference of the slide rail 5. The hoisting components 4 are set in one section of the slide rail 5, for example, there are 5 arc-shaped grooves and 6 hoisting components 4, to avoid excessive displacement of the hoisting components 4 and to avoid collisions between two adjacent hoisting components 4 during movement, which could lead to construction safety accidents, thereby improving the safety of the roof grid shell 8 during the construction process.

[0060] Further, see Figure 6 As shown, each section of the slide 5 has a buffer assembly 10 at both ends of its inner wall. The buffer assembly 10 is used to buffer the impact of the hoisting assembly 4 on the inner wall end of the slide 5. The buffer assembly 10 can be a high-strength spring or a spring pad, which has a large rebound strength and is not easily damaged.

[0061] Specifically, due to the large self-weight of the roof structure, the hoisting component 4 bears the weight of the roof structure during the rotation of the roof structure. Therefore, the hoisting component 4 has a large inertia during the movement, which may lead to the hoisting component 4 being unable to stop moving in time. Therefore, buffer components 10 are respectively provided at both ends of the inner wall of each section of the slide 5 (the hoisting component 4 can move clockwise or counterclockwise) to help the hoisting component 4 stop and to prevent the hoisting component 4 from directly colliding with the inner wall end of the slide 5, which would cause damage to the slide 5.

[0062] Furthermore, a specific structure for a mobile component is provided:

[0063] The moving assembly includes a C-shaped collar, a first drive assembly, and a mounting plate. The C-shaped collar is fitted onto the arc-shaped steel of the first truss group 2 and is located on the bottom surface of the mounting plate. The first drive assembly is located on the C-shaped collar and is used to move the C-shaped collar along the arc-shaped steel of the first truss group 2. The hoisting assembly 4 is installed on the top surface of the mounting plate.

[0064] Specifically, the first drive group drives the C-shaped collar to move along the arc-shaped steel of the first truss group 2, thereby driving the hoisting component 4 located on the top surface of the mounting plate to move. During the movement, the C-shaped collar is fitted onto the arc-shaped steel of the first truss group 2 to prevent it from falling off during the movement. Furthermore, by setting the collar to C-shape, collisions between the collar and the steel structure connected to the bottom of the arc-shaped steel can be avoided, thus enabling continuous movement.

[0065] Preferably, another specific structure of the 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 the moving wheel, and the top surface of the mounting plate is provided with the hoisting component 4. The second drive component is disposed on the moving wheel and is used to move the moving wheel along the slide rail 5.

[0066] Specifically, the second drive component drives the moving wheels to move along the slide rail 5, thereby moving the hoisting component 4 located on the top surface of the mounting plate. The number and distribution of the moving wheels can be designed according to actual needs. If there are multiple rows of moving wheels, the number of slots in the slide rail 5 must be the same as the number of rows of moving wheels.

[0067] Preferred, see Figure 7 , 8 As shown, the outermost periphery of the second truss group 6 is provided with a connecting base 11. The second truss of the second truss group 6 is connected to the first bolt hole 111 of the connecting base 11 by a bolt assembly. The second bolt hole 113 of the connecting base 11 is detachably installed with either a hoisting connecting assembly 12 or a third truss. The hoisting connecting assembly 12 includes a panel 121, a hoisting fixing member 122, and a connector 123. The connector 123 is provided on one side of the panel 121 and is threadedly connected to the connecting seat 112 opened on the connecting base 11. The hoisting fixing member 122 is evenly distributed on the other side of the panel 121 and is used for detachable connection between the panel 121 and the hoisting assembly 4. The panel 121 is provided with a third bolt hole 124, and the third bolt hole 124 is connected to the second bolt hole 113 by a bolt assembly.

[0068] Specifically, when the roof structure needs to be adjusted, the hoisting connection assembly 12 is connected to the connecting base 11. First, the connector 123 is threadedly connected to the connecting seat 112. Then, the third bolt hole 124 is aligned with the second bolt hole 113 and connected by bolt assemblies. Multiple hoisting ropes are lowered from the hoisting assembly 4 and bound to the hoisting fixing parts 122 of each panel 121. When the roof structure is rotated, the hoisting ropes between the hoisting assembly 4 and the hoisting fixing parts 122 are tightened in advance. Since the hoisting assembly 4 is fixedly connected to the hoisting fixing parts 122, the hoisting fixing parts 122 are 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 hoisting assembly 4 and the second truss group 6 is further improved, preventing the hoisting ropes from breaking when the roof structure rotates, thereby further improving the safety of construction.

[0069] Furthermore, the inner perimeter of the first truss group 2 is provided with multiple positioning guide rails, which are used for positioning the third truss.

[0070] Specifically, after the roof structure is rotated to the preset position, the third truss is installed on the connecting base 11. To further improve the positioning accuracy, a positioning guide rail is set at the pre-welded joint between the first truss group 2 and the third truss. Whether the third truss is aligned with the positioning guide rail is used to determine whether the roof structure has been adjusted to the preset angle.

[0071] It should be noted that, since the positioning guide rail is inside the first truss group 2, it occupies some space. During the installation of the roof structure, the roof structure needs to be lifted appropriately in advance to avoid collision between the third truss and the positioning guide rail. After the third truss is directly above the positioning guide rail, the entire roof structure is placed downwards, and the third truss also moves downwards with the roof structure and is finally placed on the positioning guide rail. This not only facilitates the positioning of the third truss but also provides a support function for the third truss.

[0072] Preferred, see Figure 2 , 3 As shown, a temporary support rod 9 is rotatably installed 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. The first truss and the hoisting platform 3 can be detachably connected to the other end of the temporary support rod 9. 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 hoisting platform 3.

[0073] Specifically, a temporary support rod 9 is rotatably installed on the first steel column and can be used for support in different construction processes. When the roof structure is being lifted, the temporary support rod 9 is adjusted and connected to the lifting platform 3 to improve the load-bearing capacity of the lifting platform 3. When the second truss group 6 is being 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 process and reduce construction errors. A triangular structure is formed between the first steel column, the temporary support rod 9 and the lifting platform 3, as well as between the first steel column, the temporary support rod 9 and the first truss, to further improve stability.

[0074] Further, see Figure 2 , 3 As shown, each first steel column is equipped with two temporary support rods 9. The other ends of the two adjacent temporary support rods 9 located on different first steel columns are fixedly connected to form a temporary fixed node.

[0075] 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. Since the other end of the two connected temporary support rods 9 is subjected to force on the first steel column, they can also form a triangular structure, thereby further improving the support effect of the temporary support rods 9.

[0076] The method for constructing the roof mesh shell in this embodiment of the invention includes the following steps:

[0077] Provides the structural framework for roof grid shells;

[0078] The first column group 1 is erected at the preset location, wherein the first column group 1 is ring-shaped;

[0079] The first truss group 2 is erected on the first column group 1;

[0080] A hoisting platform 3 is laid on top of the first truss group 2, and the hoisting components 4 are arranged around the hoisting platform 3;

[0081] The second truss group 6 is laid on the annular inner ground 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 a unit-type grid shell to form the roof structure.

[0082] The roof structure is lifted upward along the annular inner wall of the first column group 1 using the hoisting assembly 4 until the roof structure reaches the preset height. A second column group is set at the bottom of the second truss group 6 to support the second truss group 6, and the second truss group 6 is fixedly connected to the first truss group 2.

[0083] Therefore, it can be seen that the present invention constructs the hoisting platform 3 around the first column group 1 and the first truss group 2 at a preset position, lays the hoisting platform 3 on the first truss group 2, and installs the hoisting components 4 around the hoisting platform 3. The roof structure is first constructed on the ring-shaped ground, and then all the hoisting components 4 are lifted synchronously. The hoisting components 4 can be evenly distributed on the hoisting platform 3 to ensure that the roof structure is evenly stressed during hoisting and is lifted to the preset height of the roof structure. At the same time, the inclination of the roof structure can be adjusted by controlling different laying lengths of the hoisting components 4 to meet different construction requirements. Furthermore, the roof structure can be detected by a detection instrument to determine whether it is at the preset inclination and then fine-tuned to reduce the error caused during the hoisting process.

[0084] Finally, the second truss group 6 of the roof structure is fixed to the first truss group 2. The first column group 1 and the first truss group 2 will become part of the pre-designed building, that is, the first column group 1 serves as the outermost steel column of the pre-designed building, and the first truss group 2 serves as the outermost truss of the pre-designed building. A roof mesh shell 8 is added on top of the first truss group 2. The added roof mesh shell 8 forms an integral whole with the roof mesh shell 8 of the roof structure. All other temporary equipment, including the hoisting platform 3 and hoisting components 4, is removed before adding the roof mesh shell 8. Therefore, when constructing the roof mesh shell 8, the roof mesh shell 8 only needs to be moved vertically and does not need to be moved horizontally, thus avoiding the adverse effects of swaying during horizontal movement on construction. Furthermore, the tilt of the roof mesh shell 8 can be adjusted, thereby improving the installation accuracy of the roof mesh shell 8.

[0085] Preferably, after the roof structure reaches a preset height and before the second column group for supporting the second truss group 6 is installed at the bottom of the second truss group 6, the method further includes:

[0086] Move the hoisting assembly 4 along the slide rail 5 on the hoisting platform 3 until the roof structure rotates to the preset angle.

[0087] Specifically, after the roof structure reaches the preset height, the hoisting component 4 moves along the slide rail 5 via the moving component. Since the ring shape of the slide rail 5 is concentric with the ring shape formed by the first column group 1, that is, the ring shape of the slide rail 5 is concentric with the ring shape of the roof structure, if the hoisting component 4 moves synchronously, the angle of the roof structure can be adjusted. At the same time, it ensures that the force on the roof structure in all directions is still uniform, thereby further improving the installation accuracy of the roof grid shell 8.

[0088] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A roof grid shell construction structure, characterized in that, It includes: The first column group (1) includes multiple first steel columns, which are inserted into the ground in a ring shape. The first truss group (2) includes multiple first trusses connected in sequence, and the first truss group (2) is erected on top of the first column group (1); The hoisting platform (3) is laid on the top of the first truss group (2). Multiple hoisting components (4) are installed on the hoisting platform (3). The ring formed by the hoisting components (4) is concentric with the ring formed by the first column group (1). The hoisting components (4) are used to hoist the roof structure located inside the ring of the first column group (1). The roof structure includes a roof grid shell (8), a second truss group (6), and a transfer beam (7). The roof grid shell (8) is erected on top of the second truss group (6) via the transfer beam (7). The top of the hoisting platform (3) is surrounded by a slide rail (5), the annular shape of which is concentric with the annular shape formed by the first column group (1). A moving component is provided between the hoisting assembly (4) and the hoisting platform (3), the moving component being used to move the hoisting assembly (4) along the slide rail (5); the slide rail (5) is multi-segmented, and the slide rail (5) is installed on the steel of the first truss group (2), and a hoisting assembly (4) is installed in each segment of the slide rail (5); each segment of the slide rail (5) Buffer components (10) are provided at both ends of the inner wall to buffer the collision of the hoisting component (4) with the inner wall end of the slide (5); the moving component includes a C-shaped collar, a first driving component and a mounting plate. The C-shaped collar is sleeved on the steel of the first truss group (2) and the C-shaped collar is set on the bottom surface of the mounting plate. The first driving component is set on the C-shaped collar and is used to move the C-shaped collar along the steel of the first truss group (2). The hoisting component (4) is installed on the top surface of the mounting plate.

2. The roof mesh shell construction structure as described in claim 1, characterized in that: The outermost periphery of the second truss group (6) is provided with a connecting base (11). The second truss of the second truss group (6) is connected to the first bolt hole (111) of the connecting base (11) by a bolt assembly. The second bolt hole (113) of the connecting base (11) is detachably installed with either a hoisting connecting assembly (12) or a third truss. The hoisting connecting assembly (12) includes a panel (121), a hoisting fixing member (122), and a connector (123). The connector (123) is located on one side of the panel (121), and the connector (123) is threadedly connected to the connecting seat (112) opened on the connecting base (11). The hoisting fixing member (122) is evenly distributed on the other side of the panel (121). The hoisting fixing member (122) is used for the detachable connection between the panel (121) and the hoisting assembly (4). The panel (121) is provided with a third bolt hole (124), and the third bolt hole (124) is connected to the second bolt hole (113) by a bolt assembly.

3. The roof mesh shell construction structure as described in claim 2, characterized in that: The inner perimeter of the first truss group (2) is provided with multiple positioning guide rails, which are used for positioning the third truss.

4. The roof grid shell construction structure as described in claim 1, characterized in that: A temporary support rod (9) is rotatably mounted 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. The first truss and the hoisting platform (3) can be detachably connected to the other end of the temporary support rod (9).

5. The roof mesh shell construction structure as described in claim 4, characterized in that: Two temporary support rods (9) are provided on each of the first steel columns. The other ends of the two adjacent temporary support rods (9) located on different first steel columns are fixedly connected to form a temporary fixed node.

6. A method for constructing a roof grid shell, characterized in that, It includes the following steps: Provides a roof grid shell construction structure as described in any one of claims 1-5; The first column group (1) is erected at a preset location, wherein the first column group (1) is ring-shaped; The first truss group (2) is erected on the first column group (1); A hoisting platform (3) is laid on top of the first truss assembly (2), and the hoisting components (4) are arranged around the hoisting platform (3); 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 a unit-type grid shell to form the roof structure. The roof structure is lifted upward along the annular inner wall of the first column group (1) by the hoisting assembly (4) until the roof structure reaches the preset height. The hoisting assembly (4) is moved along the slide (5) on the hoisting platform (3) until the roof structure is rotated to the preset angle. A second column group is set at the bottom of the second truss group (6) to support the second truss group (6). The second truss group (6) is fixedly connected to the first truss group (2).

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