Steel structure ring of large-span inclined structure and construction method thereof

Abstract

This invention discloses a large-span inclined steel ring structure and its construction method. The ring steel structure is an inclined structure, including a first ring unit and a second ring unit connected to each other in a ring structure. The first ring unit is located on the higher side and has a lower spatial density than the second ring unit located on the lower side. There are two sets of ring support structures, which symmetrically support the ring steel structure below the ring steel structure and are both located below the second ring unit. To address the inclined characteristics of the ring steel structure, the first ring unit on the higher side adopts a low-density component design to reduce the self-weight load on the higher side and prevent the center of gravity from shifting upwards. The second ring unit on the lower side strengthens the load-bearing foundation with a high-density structure by densifying the main frame rods and connecting rods and using thickened and reinforced connecting rods. Combined with the two sets of symmetrical supports, the load is concentrated on the core stress area on the lower side, so that the center of gravity of the overall structure is rationally distributed along the inclined direction, effectively offsetting the risk of imbalance caused by the inclination.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a large-span inclined steel structure ring and its construction method. Background Technology

[0002] In the field of architectural engineering, tubular truss structures are widely used in buildings requiring expansive column-free spaces, such as open-air theaters, stadiums, and exhibition centers, due to their advantages of high strength, lightweight, and strong wind and earthquake resistance. They are particularly suitable for the design and construction of circular steel structures. These circular steel structures often serve as core architectural components, integrating multiple functional devices and combining practicality with regional characteristics.

[0003] As the core component ensuring the safety and stability of the overall structure, the supporting structure of the circular steel structure must withstand the self-weight of the main body of the circular ring, equipment loads, and external forces such as wind and earthquakes for a long time.

[0004] In a certain open-air theater-type building, the circular steel structure is an inclined structure with an inclination angle as high as 26.8°. The following problems are faced in the structural and construction application: The structural parameters are complex, with the characteristics of ultra-large span and specific inclination angle. Moreover, the components are mostly circular tubes connected together, with large cross-sectional spans and huge total steel consumption, resulting in a complex structural stress system, irregular load transfer paths, and easy occurrence of local stress concentration, which puts strict requirements on the overall stability of the structure. Existing structural designs cannot take into account both inclination characteristics and long-term stability. When facing external loads such as wind and earthquakes, the lateral displacement resistance and deformation coordination performance of the inclined structure are insufficient, which can easily lead to cumulative structural deformation and affect the long-term safety of use. Summary of the Invention

[0005] The purpose of this invention is to provide a steel ring structure with a large span and an inclined structure and its construction method, so as to solve the problem that the existing technology structure is difficult to balance the inclined characteristics and long-term stability. When faced with external loads such as wind and earthquakes, the inclined structure has insufficient resistance to lateral displacement and deformation coordination performance, which easily leads to cumulative deformation of the structure and affects the safety of long-term use.

[0006] To achieve the above objectives, the present invention provides a large-span inclined steel structure ring, comprising: a ring steel structure and a ring support structure; the ring steel structure is an inclined structure, including a first ring unit and a second ring unit connected to each other in a ring structure, wherein the first ring unit is located on the higher side, the second ring unit is located on the lower side, and the spatial density of the first ring unit is less than that of the second ring unit; there are two sets of ring support structures, which are symmetrically supported below the ring steel structure and both are located below the second ring unit. The ring support structure includes a first support component and a second support component, both of which are supported below the second ring unit; the first support component is located on the side closer to the first ring unit, and the second support component is located on the side farther from the first ring unit.

[0007] Preferably, the first annular unit includes: a first main frame rod and a first connecting rod; the end of the first main frame rod is connected to the first main frame rod of the adjacent first annular unit, or to the adjacent second annular unit; the first connecting rod is used to reinforce the connection of the first main frame rod.

[0008] Preferably, the second annular unit includes: a reinforcing connecting rod, a second main frame rod, a second connecting rod, and a transition rod; one end of the reinforcing connecting rod is connected to the first main frame rod through the transition rod, and the other end is connected to the second main frame rod through the transition rod; the second connecting rod is used to reinforce the connection between the reinforcing connecting rod, the second main frame rod, and the first main frame rod.

[0009] Preferably, the spatial density of the second main frame rod is greater than that of the first main frame rod; the spatial density of the second connecting rod is greater than that of the first connecting rod; the reinforcing connecting rod is made of thickened steel pipe; and the first support assembly is supported below the reinforcing connecting rod.

[0010] Preferably, the first support component includes: a first support column and a support rod; the bottom of the first support column is embedded in the ground floor building; the support rod is installed on the first support column and is supported below the second annular unit.

[0011] Preferably, the second support assembly includes: a second support column, a buffer assembly, and a fixing plate assembly; the bottom of the second support column is embedded in the ground floor building, the buffer assembly is installed on the second support column, and the fixing plate assembly is installed on the buffer assembly, and the fixing plate assembly is supported below the second annular unit.

[0012] Preferably, the buffer assembly includes: a first buffer, a second buffer, and a third buffer; the first buffer is mounted on the second support column; the third buffer is mounted above the first buffer, and the fixing plate assembly is mounted on the third buffer; the second buffer is disposed between the first buffer and the third buffer.

[0013] Preferably, the top of the first buffer member is provided with an arc-shaped groove; the bottom of the second buffer member is an arc structure that matches the arc-shaped groove structure.

[0014] Preferably, a lubricating layer is provided between the first buffer and the second buffer, and between the second buffer and the third buffer.

[0015] Preferably, the fixing plate assembly includes a first fixing plate and a second fixing plate that are perpendicular to each other; the first fixing plate and the second fixing plate are mounted on the buffer assembly; both the first fixing plate and the second fixing plate are fixedly connected to the second annular unit.

[0016] Based on the same underlying concept, this invention also designs a construction method for a large-span inclined steel ring structure, including the following steps: Step 1: Constructing the ring support structure: According to the drawings and model of the ring support structure, perform on-site positioning and layout, accurately mark the installation points, pre-embed the first support column at the installation point according to the setting requirements, and then install the support rod on the first support column. During the installation of the first support column, monitor the posture of the first support column in real time to ensure that the verticality and elevation meet the design requirements; pre-embed the second support column at the installation point according to the setting requirements, and install the buffer component on the second support column; then install the fixing plate component on the buffer component; Step 2: Installing the temporary support frame: According to the drawings and model of the ring steel structure, accurately mark the installation points of the temporary support frame, hoist the steel transfer beam to the installation point and fix it, and then assemble the frame body from bottom to top. Erect a steel transfer platform on the top of the frame; Step 3: Constructing the ring steel structure: According to the drawings and model of the ring steel structure... The main frame rods on both sides of the circular steel structure are hoisted into position symmetrically from both sides towards the middle. The second main frame rod of the second circular unit is installed on the fixed plate assembly. After the second main frame rod is installed, the second connecting rod is installed simultaneously. The reinforcing connecting rod of the second circular unit is installed on the support rod, and the reinforcing connecting rod is connected to the second main frame rod through the transition rod. After the reinforcing connecting rod is installed, the second connecting rod is installed simultaneously. The first main frame rod of the first circular unit is installed on the temporary support frame, and the first main frame rod is connected through the transition rod and the reinforcing connecting rod. After the first main frame rod is installed, the first connecting rod is installed simultaneously. During construction, the posture of the main frame rods on both sides of the circular steel structure is monitored in real time to ensure installation accuracy. A 10mm margin is reserved at the closing position of the main frame rods on both sides of the circular steel structure. Step 4: Unloading of the temporary support frame: The unloading is carried out in four stages, with each stage unloading 25%. After each stage unloading, the frame is stabilized for 30 minutes before proceeding to the next stage, until the frame is completely detached from the circular steel structure.

[0017] Compared with the closest prior art, the beneficial effects of the present invention are as follows: 1. This invention addresses the tilting characteristics of circular steel structures. The first circular unit on the higher side adopts a low-density component design to reduce the self-weight load on the higher side and prevent the center of gravity from shifting upwards. The second circular unit on the lower side strengthens the load-bearing foundation with a high-density structure by densifying the main frame rods and connecting rods and using thickened and reinforced connecting rods. With the help of two sets of symmetrical supports, the load is concentrated on the core area of ​​the lower side, so that the center of gravity of the overall structure is reasonably distributed along the tilting direction, effectively offsetting the risk of imbalance caused by tilting, achieving dynamic balance of the structure, and further improving the overall stability and anti-overturning ability under tilting conditions.

[0018] 2. This invention divides the circular steel structure into a first circular unit on the high side and a second circular unit on the low side. The second circular unit uses main frame rods, connecting rods and thickened and reinforced connecting rods with higher spatial density. It is combined with two sets of symmetrical support structures to provide concentrated support on the low side, making the load transfer path clearer and effectively dispersing the local stress concentration of the inclined structure, which is suitable for the structural requirements of large inclination angle and ultra-large span.

[0019] 3. The first circular unit of this invention adopts a low spatial density component design, reducing the total steel consumption while meeting structural strength requirements, thus achieving lightweighting. The second circular unit strengthens the load-bearing capacity through multiple reinforcing connections, forming a reasonable layout of high-side lightweighting and low-side strong load-bearing capacity, balancing stability and economy. Furthermore, the components are welded together with intersecting circular tubes, and the weld height is adapted to the component wall thickness. Combined with the pre-embedded fixing method of the support columns, the connection strength and pull-out resistance of the overall structure are improved. The anti-corrosion and anti-rust coating on the outer surface extends the service life of the structure in outdoor environments, making it suitable for outdoor building scenarios such as open-air theaters.

[0020] 4. The support column of this invention adopts a deep pre-embedded and ring-shaped reinforcing rib design. The fixing plate assembly is tightly fitted to the circular steel structure through the arc-shaped fitting surface, which reduces the risk of node loosening and deformation and extends the service life of the structure.

[0021] 5. The two sets of symmetrically arranged circular ring support structures of the present invention, together with anti-lateral displacement tie rods, form a stable force system, which can effectively resist the lateral forces caused by external loads such as wind and earthquakes, and ensure the overall stability of the large-span circular ring structure.

[0022] 6. The three-layer buffer assembly of this invention, with its precise fit between the arc groove and the circular arc structure, can absorb structural deformation and external impacts. The axial compression can be flexibly adapted to the load deformation requirements. The lubrication layer reduces friction loss between buffer components, further improving buffer reliability.

[0023] 7. The construction method of this invention ensures the installation accuracy of the support structure and the circular steel structure through precise positioning and layout and real-time attitude monitoring. Symmetrical hoisting from both sides to the middle with reserved closure allowance avoids installation deviation. The four-level unloading can avoid sudden changes in structural stress. Combined with temporary support frames and standardized connection procedures, it not only adapts to the complex construction needs of large-span inclined structures, but also ensures construction safety and structural installation quality, and extends the service life of the structure. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the first structure of the steel ring of the large-span inclined structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the second structure of the steel ring of the large-span inclined structure of the present invention.

[0026] Figure 3 This is a schematic diagram of the third structure of the steel ring of the large-span inclined structure of the present invention.

[0027] Figure 4 This is a schematic diagram of the fourth structure of the steel ring of the large-span inclined structure of the present invention.

[0028] Figure 5 This is a schematic diagram of the circular steel structure of the present invention.

[0029] Figure 6 This is a schematic diagram of the structure of the first annular unit of the present invention.

[0030] Figure 7 This is a schematic diagram of the structure of the second annular unit of the present invention.

[0031] Figure 8 This is a schematic diagram of the first structure of the reinforcing connecting rod of the present invention.

[0032] Figure 9 This is a schematic diagram of the second structure of the reinforcing connecting rod of the present invention.

[0033] Figure 10 This is a schematic diagram of the circular support structure of the present invention.

[0034] Figure 11 This is a schematic diagram of the structure of the first support component of the present invention.

[0035] Figure 12 This is a schematic diagram of the first structure of the second support component of the present invention.

[0036] Figure 13 This is a schematic diagram of the second structure of the second support component of the present invention.

[0037] Figure 14 This is a schematic diagram of the third structure of the second support component of the present invention.

[0038] Figure 15 This is a schematic diagram of the structure of the buffer component of the present invention.

[0039] Figure label: 1-Circular steel structure, 11-First circular unit, 111-First main frame rod, 112-First connecting rod, 12-Second circular unit, 121-Reinforcing connecting rod, 122-Second main frame rod, 123-Second connecting rod, 124-Transition rod, 2-Circular support structure, 21-First support assembly, 211-First support column, 212-Support rod, 22-Second support assembly, 221-Second support column, 222-Buffer assembly, 223-First fixing plate, 224-Second fixing plate, 225-First buffer component, 226-Second buffer component, 227-Third buffer component, 228-Lubricating layer. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Example

[0041] like Figures 1-15As shown, the present invention provides a large-span inclined steel structure ring, comprising: a ring steel structure 1 and a ring support structure 2; the ring steel structure 1 is an inclined structure, including a first ring unit 11 and a second ring unit 12 connected to each other in a ring structure, wherein the first ring unit 11 is located on the high side, the second ring unit 12 is located on the low side, and the spatial density of the first ring unit 11 is less than the spatial density of the second ring unit 12; the ring support structure 2 consists of two sets, which are symmetrically supported below the ring steel structure 1 and both are located below the second ring unit 12. The ring support structure 2 includes a first support component 21 and a second support component 22, both of which are supported below the second ring unit 12; the first support component 21 is located on the side closer to the first ring unit 11, and the second support component 22 is located on the side farther from the first ring unit 11. To address the tilting characteristics of the circular steel structure, the first circular unit on the higher side employs a low-density component design to reduce its self-weight load and prevent the center of gravity from shifting upwards. The second circular unit on the lower side enhances the load-bearing foundation with a high-density structure through denser main frame members, connecting rods, and thicker, reinforced connecting rods. Combined with two sets of symmetrical supports concentrated on the core load-bearing area on the lower side, this ensures a rational distribution of the overall structure's center of gravity along the tilt direction, effectively mitigating the risk of imbalance caused by tilting, achieving dynamic structural equilibrium, and further improving overall stability and overturning resistance under tilted conditions. By dividing the circular steel structure into a first circular unit on the higher side and a second circular unit on the lower side, with the second circular unit using higher spatial density main frame members, connecting rods, and thicker, reinforced connecting rods, and two sets of symmetrical supports concentrated on the lower side, the load transfer path is clearer, effectively dispersing local stress concentration in the tilted structure, and adapting to the structural requirements of large tilt angles and ultra-large spans. Two sets of symmetrically arranged circular support structures, together with anti-lateral displacement tie rods, form a stable force-bearing system that can effectively resist lateral forces caused by external loads such as wind and earthquakes, ensuring the overall stability of the large-span circular structure.

[0042] In a preferred embodiment, the first annular unit 11 includes: a first main frame rod 111 and a first connecting rod 112; the end of the first main frame rod 111 is connected to the first main frame rod 111 of the adjacent first annular unit 11, or to the adjacent second annular unit 12; the first connecting rod 112 is used to reinforce the connection of the first main frame rod 111.

[0043] In a preferred embodiment, the second annular unit 12 includes: a reinforcing connecting rod 121, a second main frame rod 122, a second connecting rod 123, and a transition rod 124; one end of the reinforcing connecting rod 121 is connected to the first main frame rod 111 through the transition rod 124, and the other end is connected to the second main frame rod 122 through the transition rod 124; the second connecting rod 123 is used to reinforce the connection between the reinforcing connecting rod 121, the second main frame rod 122, and the first main frame rod 111.

[0044] In a preferred embodiment, the spatial density of the second main frame rod 122 is greater than that of the first main frame rod 111; the spatial density of the second connecting rod 123 is greater than that of the first connecting rod 112; the reinforcing connecting rod 121 is made of thickened steel pipe; and the first support assembly 21 is supported below the reinforcing connecting rod 121. The first circular unit adopts a component design with lower spatial density, reducing the total steel consumption while meeting structural strength requirements, thus achieving lightweighting; the second circular unit strengthens its load-bearing capacity through multiple reinforcing connections, forming a reasonable layout of high-side lightweighting and low-side strong load-bearing capacity, balancing stability and economy. Furthermore, the components are welded together with intersecting circular pipes, and the weld height is adapted to the component wall thickness. Combined with the pre-embedded fixing method of the support column, the connection strength and pull-out resistance of the overall structure are improved; the anti-corrosion and anti-rust coating on the outer surface extends the service life of the structure in the open-air environment, making it suitable for outdoor building scenarios such as open-air theaters.

[0045] In a preferred embodiment, the first support assembly 21 includes a first support column 211 and a support rod 212; the bottom of the first support column 211 is embedded in the ground floor building; the support rod 212 is installed on the first support column 211 and is supported below the second annular unit 12.

[0046] In a preferred embodiment, the second support assembly 22 includes: a second support column 221, a buffer assembly 222, and a fixing plate assembly; the bottom of the second support column 221 is embedded in the ground floor building, and the buffer assembly 222 is installed on the second support column 221; the fixing plate assembly is installed on the buffer assembly 222, and the fixing plate assembly is supported below the second annular unit 12. The support column adopts a deep pre-embedded design and annular reinforcing ribs, and the fixing plate assembly is tightly fitted to the annular steel structure through an arc-shaped contact surface, reducing the risk of node loosening and deformation, and extending the service life of the structure.

[0047] In a preferred embodiment, the buffer assembly 222 includes: a first buffer 225, a second buffer 226, and a third buffer 227; the first buffer 225 is mounted on the second support column 221; the third buffer 227 is mounted above the first buffer 225, and a fixing plate assembly is mounted on the third buffer 227; the second buffer 226 is disposed between the first buffer 225 and the third buffer 227.

[0048] In a preferred embodiment, the top of the first buffer member 225 is provided with an arc-shaped groove; the bottom of the second buffer member 226 is an arc structure that matches the arc-shaped groove structure.

[0049] In a preferred embodiment, a lubricating layer is provided between the first buffer 225 and the second buffer 226, and between the second buffer 226 and the third buffer 227.

[0050] In a preferred embodiment, the fixing plate assembly includes a first fixing plate 223 and a second fixing plate 224 that are perpendicular to each other; the first fixing plate 223 and the second fixing plate 224 are mounted on the buffer assembly 222; both the first fixing plate 223 and the second fixing plate 224 are fixedly connected to the second annular unit 12. The three-layer buffer assembly, with its precise fit between the arc groove and the arc structure, can absorb structural deformation and external impacts, and the axial compression can be flexibly adapted to load deformation requirements; the lubrication layer reduces frictional loss between the buffer components, further improving buffer reliability. Example

[0051] This invention also provides a construction method for a large-span inclined steel ring structure, comprising the following steps: Step 1, constructing the ring support structure 2: Based on the drawings and model of the ring support structure 2, perform on-site positioning and layout, accurately mark the installation points, pre-embed the first support column 211 at the installation points according to the setting requirements, and then install the support rod 212 on the first support column 211. During the installation of the first support column 211, monitor the posture of the first support column 211 in real time to ensure that the verticality and elevation meet the design requirements; pre-embed the second support column 212 at the installation points according to the setting requirements. Support column 221, install buffer assembly 222 on the second support column 221; then install fixing plate assembly 223 on buffer assembly 222; Step 2, install temporary support frame: according to the drawings and model of the circular steel structure 1, accurately mark the installation points of the temporary support frame, hoist the steel transfer beam to the installation points and fix it, then assemble the frame body from bottom to top, and erect the steel transfer platform on the top of the frame; Step 3, construct the circular steel structure 1: according to the drawings and model of the circular steel structure 1, install the main frame rods on both sides of the circular steel structure 1 according to the drawings and model of the second support column 221; then install the fixing plate assembly 223 on the buffer assembly 222; Step 2, install temporary support frame: according to the drawings and model of the circular steel structure 1, install the main frame rods on both sides of the circular steel structure 1 according to the drawings and model of the second support column 221; then install the fixing plate assembly 223 on the second support column 222; Step 3, construct the circular steel structure 1: according to the drawings and model of the circular steel structure 1, install the main frame rods on both sides of the circular steel structure 1 according to the drawings and model of the second support column 221; then install the fixing plate assembly 223 on the second support column 222; Step 4, install temporary support frame: according to the drawings and model of the circular steel structure 1, accurately mark the installation points of the temporary support frame, hoist the steel transfer beam to the installation points and fix it, then assemble the main frame body from bottom to top, and erect the steel transfer platform on the top of the frame; Step 5, construct the circular steel structure 1: according to the drawings and model of the second support column 221, install the main frame rods on both sides of the circular steel structure 1; The second main frame rod 122 of the second annular unit 12 is hoisted into position in a synchronous and symmetrical manner towards the center. It is then installed on the fixed plate assembly 223. After the second main frame rod 122 is in place, the second connecting rod 123 is installed simultaneously. The reinforcing connecting rod 121 of the second annular unit 12 is installed on the support rod 212, wherein the reinforcing connecting rod 121 is connected to the second main frame rod 122 via a transition rod 124. After the reinforcing connecting rod 121 is in place, the second connecting rod 123 is installed simultaneously. The first main frame rod 111 of the first annular unit 11 is installed on the temporary support frame. On the scaffold, the first main frame rod 111 is connected to the connecting rod 121 via a transition rod 124. After the first main frame rod 111 is installed in place, the first connecting rod 112 is installed simultaneously. During construction, the posture of the main frame rods on both sides of the circular steel structure 1 is monitored in real time to ensure installation accuracy. A 10mm allowance is reserved at the closing position of the main frame rods on both sides of the circular steel structure 1. Step 4: Unloading of the temporary support frame: A four-level unloading ratio is adopted, with each level unloading 25%. After each level of unloading, it is stabilized for 30 minutes before proceeding to the next level, until the frame is completely detached from the circular steel structure 1. Precise positioning and real-time posture monitoring ensure the installation accuracy of the support structure and the circular steel structure. Symmetrical hoisting from both sides to the middle, combined with the reserved closing allowance, avoids installation deviation. The four-level unloading can avoid sudden changes in structural stress. Combined with the temporary support frame and standardized connection process, it not only adapts to the complex construction needs of large-span inclined structures, but also ensures construction safety and structural installation quality, and extends the service life of the structure.

[0052] In step 3, during construction, a total station is used to perform three-dimensional coordinate measurements on the main frame poles on both sides of the circular steel structure 1 to monitor their attitude. At least three feature points are monitored for each main frame pole.

[0053] In step 3, during the closure construction of the main frame members on both sides of the circular steel structure 1, the three-dimensional control coordinates of the docking ports of the main frame members on both sides of the circular steel structure 1 are re-measured, and the measured data are compared with the theoretical coordinates. This completely eliminates the accumulated errors during the assembly of the inclined circular ring. The closure interface is finely ground and repaired, and the stress generated during welding is released in a directional manner. This fundamentally improves the overall hardness and stability of the steel structure. Whether at the moment of closure construction or in long-term service, the structural performance can remain excellent, setting a technical benchmark for large-span inclined steel structure projects.

[0054] Furthermore, the temporary support frame is a lattice structure, including a bottom standard section, an upper adjusting section, a top conversion platform, a steel conversion beam, and guy ropes around the perimeter. This lattice-type adjustable temporary support frame allows for flexible height adjustment and is equipped with two different circular support structures. This support system features built-in cushioning and shock absorption, and automatic height adaptation. Even on uneven ground or when the steel structure is tilted at an angle of 26.8°, it can still be stably supported. Combined with redundant anti-collapse design and pre-embedded fixing methods, there is no need to worry about the support frame collapsing throughout the entire construction process, ensuring full-cycle safety protection.

[0055] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0056] Furthermore, the terms "upper" and "lower" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "upper" or "lower" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0058] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of the claims of the pending application of the present invention.

Claims

1. A steel structure ring with a large span and inclined structure, characterized in that, include: Circular steel structure (1) and circular support structure (2); The circular steel structure (1) is an inclined structure, including a first circular unit (11) and a second circular unit (12) connected to each other in a circular structure. The first circular unit (11) is located on the high side, the second circular unit (12) is located on the low side, and the spatial density of the first circular unit (11) is less than the spatial density of the second circular unit (12). There are two sets of the circular support structure (2). The two sets of circular support structures (2) are symmetrically supported below the circular steel structure (1) and are both located below the second circular unit (12). The circular support structure (2) includes a first support component (21) and a second support component (22). The first support component (21) and the second support component (22) are both supported below the second circular unit (12). The first support component (21) is located on the side closer to the first circular unit (11), and the second support component (22) is located on the side farther away from the first circular unit (11).

2. The steel structure ring with a large span inclined structure as described in claim 1, characterized in that, The first annular unit (11) includes: a first main frame rod (111) and a first connecting rod (112); The end of the first main frame rod (111) is connected to the first main frame rod (111) of the adjacent first ring unit (11), or to the adjacent second ring unit (12); The first connecting rod (112) is used to reinforce the connection with the first main frame rod (111).

3. The steel structure ring with a large span inclined structure as described in claim 2, characterized in that, The second annular unit (12) includes: a reinforcing connecting rod (121), a second main frame rod (122), a second connecting rod (123), and a transition rod (124). One end of the reinforcing connecting rod (121) is connected to the first main frame rod (111) through the transition rod (124), and the other end is connected to the second main frame rod (122) through the transition rod (124); The second connecting rod (123) is used to reinforce the connection between the reinforcing connecting rod (121), the second main frame rod (122), and the first main frame rod (111).

4. The steel structure ring with a large span inclined structure as described in claim 3, characterized in that, The spatial density of the second main frame rod (122) is greater than that of the first main frame rod (111); The spatial density of the second connecting rod (123) is greater than that of the first connecting rod (112); The reinforcing connecting rod (121) is made of thickened and reinforced steel pipe; The first support assembly (21) is supported below the reinforcing connecting rod (121).

5. The steel structure ring with a large span inclined structure as described in claim 1, characterized in that, The first support component (21) includes: a first support column (211) and a support rod (212); The bottom of the first support column (211) is embedded in the ground floor building; The support rod (212) is mounted on the first support column (211) and is supported below the second annular unit (12).

6. The steel structure ring with a large span inclined structure as described in claim 5, characterized in that, The second support assembly (22) includes: a second support column (221), a buffer assembly (222), and a fixing plate assembly; The bottom of the second support column (221) is embedded in the ground floor building; The buffer assembly (222) is mounted on the second support column (221); The fixing plate assembly is mounted on the buffer assembly (222) and is supported below the second annular unit (12).

7. The steel structure ring with a large span inclined structure as described in claim 6, characterized in that, The buffer assembly (222) includes: a first buffer (225), a second buffer (226) and a third buffer (227); The first buffer (225) is mounted on the second support column (221); The third buffer (227) is mounted above the first buffer (225), and the fixing plate assembly is mounted on the third buffer (227); The second buffer (226) is disposed between the first buffer (225) and the third buffer (227).

8. The steel structure ring with a large span inclined structure as described in claim 7, characterized in that, The top of the first buffer (225) is provided with an arc-shaped groove; The bottom of the second buffer (226) is an arc structure that matches the arc groove structure; A lubricating layer is provided between the first buffer (225) and the second buffer (226) and between the second buffer (226) and the third buffer (227).

9. The steel structure ring with a large span inclined structure as described in claim 6, characterized in that, The fixing plate assembly includes a first fixing plate (223) and a second fixing plate (224) that are perpendicular to each other; The first fixing plate (223) and the second fixing plate (224) are mounted on the buffer assembly (222); Both the first fixing plate (223) and the second fixing plate (224) are fixedly connected to the second annular unit (12).

10. A construction method for a steel structure ring with a large span and inclined structure, characterized in that, Includes the following steps Step 1: Construct the circular support structure (2): Based on the drawings and model of the circular support structure (2), perform on-site positioning and layout, accurately mark the installation points, and pre-embed the first support column (211) at the installation points according to the setting requirements. Then, install the support rod (212) on the first support column (211). When installing the first support column (211), monitor the posture of the first support column (211) in real time to ensure that the verticality and elevation meet the design requirements. Pre-embed the second support column (221) at the installation points according to the setting requirements, and install the buffer component (222) on the second support column (221). Then, install the fixing plate component (223) on the buffer component (222). Step 2: Install temporary support frame: According to the drawings and model of the circular steel structure (1), accurately mark the installation points of the temporary support frame, hoist the steel transfer beam to the installation point and fix it, then assemble the frame body from bottom to top, and set up the steel transfer platform on the top of the frame. Step 3, Construction of the circular steel structure (1): According to the drawings and model of the circular steel structure (1), the main frame rods on both sides of the circular steel structure (1) are hoisted into place in a synchronous and symmetrical manner from both sides to the middle. The second main frame rod (122) of the second circular unit (12) is installed on the fixed plate assembly (223). After the second main frame rod (122) is installed in place, the second connecting rod (123) is installed simultaneously. The reinforcing connecting rod (121) of the second circular unit (12) is installed on the support rod (212), wherein the reinforcing connecting rod (121) is connected to the second main frame rod (123) through the transition rod (124). 22) After the connecting rod (121) is installed in place, the second connecting rod (123) is installed simultaneously. The first main frame rod (111) of the first ring unit (11) is installed on the temporary support frame. The first main frame rod (111) is connected to the connecting rod (121) through the transition rod (124). After the first main frame rod (111) is installed in place, the first connecting rod (112) is installed simultaneously. During construction, the posture of the main frame rods on both sides of the ring steel structure (1) is monitored in real time to ensure installation accuracy. A 10mm margin is reserved at the closing position of the main frame rods on both sides of the ring steel structure (1). Step 4: Unloading the temporary support frame: Unloading is carried out in four stages with a 25% unloading ratio for each stage. After each stage is unloaded, it is stabilized for 30 minutes before proceeding to the next stage, until the frame is completely detached from the circular steel structure (1).

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