A steel cable suspension system for a large-span stadium building

Abstract

This invention discloses a steel cable suspension system for large-span stadium-type buildings. The system includes: several vertical tie rods connected to the roof, each end equipped with a lifting clamp, including a rotating ring; several horizontal cables arranged longitudinally and laterally, connected to the building components around the roof, with lifting clamps passing through their intersection points; and each horizontal cable including at least one tensioning device. This invention, by installing vertical tie rods with lifting clamps on the roof, and pulling horizontal cables longitudinally and laterally on the surrounding building components, with the intersection points of the horizontal cables in different directions corresponding to and tensioned by the lifting clamps, forms a three-dimensional suspension structure. In use, lightweight items can be suspended from the horizontal cables, while heavy equipment can be suspended from the rotating rings. The force on the vertical tie rods is distributed by the horizontal cables, preventing damage to the roof's load-bearing capacity and improving the roof's wind resistance through the horizontal cables, thus ensuring the safe operation of large-scale exhibition buildings.

Description

Technical Field

[0001] This invention relates to the field of building foundation equipment technology, and in particular to a steel cable suspension system for large-span stadium-type buildings. Background Technology

[0002] In large-scale exhibition buildings, the setup and operation of exhibitions require the hanging of exhibition facilities, advertising facilities, lighting equipment, and supporting equipment for artistic performances. Therefore, it is necessary to set up hanging points at certain intervals above the exhibition hall. Currently, the common hanging structure methods in the industry mainly include welding hooks to the roof, installing clamps on structural components, and using steel wire ropes for hanging. These methods are the main means to meet the basic hanging requirements in current exhibition buildings.

[0003] In existing technologies, the roofs of large venue buildings inherently suffer from low load-bearing capacity and susceptibility to damage to surface corrosion and fire-retardant coatings. The aforementioned common hanging methods all have significant drawbacks: welding hooks and installing clamps can reduce the load-bearing capacity of the roof and damage the anti-corrosion and fire-retardant coatings on the roof surface; wire rope hanging is only suitable for smaller items such as banners and advertising curtains and cannot meet the diverse hanging needs of large-scale exhibitions; in addition, high-load-bearing hanging structures can damage the original building structure, thereby affecting the roof's wind uplift resistance and making it difficult to meet the safe operation requirements of large-scale exhibition buildings.

[0004] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0005] To address the problem that welding hooks, clamps, and other structures to the roofs of large stadiums in existing technologies can damage the anti-corrosion and fireproof coatings on the roof surface, easily reduce the roof's load-bearing capacity, and even affect the roof's wind uplift performance, thus impacting the safe operation of the building, this invention provides a steel cable suspension system for large-span stadiums.

[0006] This invention is achieved through the following technical solution: A steel cable suspension system for a large-span stadium-type building, wherein the steel cable suspension system for the large-span stadium-type building includes: Several vertical tie rods are connected to the roof in an array. The ends of the vertical tie rods are provided with lifting cable clamps. The lifting cable clamps include rotating lifting rings provided at the lower chord elevation of the roof. The rotating lifting rings are used to hang equipment. Several horizontal cables are arranged in both longitudinal and transverse directions and connected to the building components around the roof. The longitudinal and transverse horizontal cables pass through the hoisting cable clamps at their intersection points. The horizontal cable includes at least one tensioning device that applies a preload to the horizontal cable.

[0007] The steel cable suspension system for large-span stadium-type buildings, wherein the building components include floor slabs and steel columns; When the horizontal cable is connected to the floor slab, the end of the horizontal cable is connected to the ear plate embedded in the floor slab; When the horizontal cable is connected to the steel column, the end of the horizontal cable is connected to the lug pre-welded to the steel column.

[0008] The steel cable suspension system for large-span stadium-type buildings, wherein when the horizontal cable is misaligned with the floor slab at the corresponding position, a butterfly cable clamp is provided at the intersection point of the horizontal cable, and a first cable and a second cable are provided on the butterfly cable clamp along different directions, and the first cable and the second cable are respectively connected to the ear plates of the upper and lower floor slabs.

[0009] The steel cable suspension system for the large-span stadium-type building, wherein the butterfly cable clamp includes: Connect the connecting ear plate to the vertical tie rod; An upper connecting plate and a lower connecting plate are clamped together, and the upper connecting plate and the lower connecting plate are connected by pre-tightening bolts; The first ear plate is fixedly disposed on one side of the upper connecting plate at a first predetermined angle; The second ear plate is fixedly disposed on the other side of the upper connecting plate at a second predetermined angle; The second ear plate is provided with the rotating lifting ring.

[0010] The steel cable suspension system for the large-span stadium-type building, wherein the vertical tie rods include: The connector includes a positioning ear plate and several stiffening ribs disposed on both sides of the positioning ear plate; A steel tie rod includes a cable head at one end, the cable head being connected to the positioning lug; The hoisting cable clamp is connected to the other end of the steel tie rod.

[0011] The steel cable suspension system for large-span stadium-type buildings, wherein the vertical tie rods are connected to the roof in a vertical or oblique direction, and the positioning ear plates are pre-welded to the main structure of the roof.

[0012] The steel cable suspension system for large-span stadium-type buildings, wherein the vertical tie rods are prestressed, and the prestress is used to enhance the vertical stiffness of the roof.

[0013] The steel cable suspension system for large-span stadium-type buildings, wherein the hoisting cable clamps include: The lifting lugs are connected to the vertical tie rod; The first clamping plate, the second clamping plate, and the third clamping plate are clamped together and connected by pre-tightening bolts. The lifting lug is set on the first clamping plate, and the rotating lifting ring is set on the third clamping plate. A longitudinal through groove is pre-set between the first clamping plate and the second clamping plate; A transverse through groove is pre-set between the second clamping plate and the third clamping plate.

[0014] The steel cable suspension system for large-span stadium-type buildings, wherein the horizontal cables are high-vanadium cables and the horizontal cables meet the predetermined breaking force design requirements.

[0015] The steel cable suspension system for large-span stadium-type buildings includes several horizontal cables arranged longitudinally and laterally for suspending lightweight items, and rotating rings for suspending heavy equipment.

[0016] The beneficial effects of this invention are as follows: By setting vertical tie rods with lifting cable clamps on the roof, and pulling horizontal cables along the longitudinal and transverse directions on the surrounding building components, the intersection points of the horizontal cables in different directions are installed and tensioned correspondingly with the lifting cable clamps, forming a three-dimensional lifting structure. In actual use, light items can be suspended on the horizontal cables, and heavy equipment can be suspended at the rotating lifting rings. The force on the vertical tie rods is distributed by the horizontal cables, which can not only prevent the load-bearing capacity of the roof from being damaged, but also improve the wind uplift resistance of the roof through the tensioned horizontal cables, ensuring the safe operation of large-scale exhibition buildings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the plan layout of the steel cable suspension system for large-span stadium-type buildings according to the present invention; Figure 2 This invention relates to a steel cable suspension system for large-span stadium-type buildings. Figure 1 AA node cross-section view; Figure 3 This invention relates to a steel cable suspension system for large-span stadium-type buildings. Figure 1 BB node cross-section view; Figure 4 This invention relates to a steel cable suspension system for large-span stadium-type buildings. Figure 1 Cross-sectional view of CC node in the diagram; Figure 5 This is a schematic diagram of the hoisting cable clamp structure in the steel cable suspension system for large-span stadium-type buildings of the present invention; Figure 6 This is a schematic diagram of the butterfly cable clamp in the steel cable suspension system for large-span stadium buildings of the present invention; Figure 7This is a schematic diagram of the connection structure between the vertical tie rod and the steel column in the steel cable suspension system for large-span stadium-type buildings of the present invention; Figure 8 This is a schematic diagram of the connection structure between the vertical tie rod and the upper chord of the triangular truss in the steel cable suspension system of the large-span stadium-type building of the present invention.

[0018] exist Figures 1 to 8 In the middle section: 100, vertical tie rod; 110, connector; 111, positioning ear plate; 112, stiffening rib plate; 120, steel tie rod; 200, lifting cable clamp; 210, rotating lifting ring; 220, first clamp plate; 221, lifting ear plate; 230, second clamp plate; 240, third clamp plate; 300, horizontal cable; 310, tensioning device; 400, butterfly cable clamp; 410, upper connecting plate; 411, connecting ear plate; 412, first ear plate; 413, second ear plate; 420, lower connecting plate; 510, floor slab; 520, steel column; 600, roof. Detailed Implementation

[0019] To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0020] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0022] In existing technologies, the roofs of large venue buildings inherently suffer from low load-bearing capacity and susceptibility to damage to surface corrosion and fire-retardant coatings. The aforementioned common hanging methods all have significant drawbacks: welding hooks and installing clamps can reduce the load-bearing capacity of the roof and damage the anti-corrosion and fire-retardant coatings on the roof surface; wire rope hanging is only suitable for smaller items such as banners and advertising curtains and cannot meet the diverse hanging needs of large-scale exhibitions; in addition, high-load-bearing hanging structures can damage the original building structure, thereby affecting the roof's wind uplift resistance and making it difficult to meet the safe operation requirements of large-scale exhibition buildings.

[0023] To address the aforementioned problems in the existing technology, this invention provides a steel cable suspension system for large-span stadium-type buildings, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the steel cable suspension system of this large-span stadium-type building includes: several vertical tie rods 100, which are connected in an array to the roof 600. The ends of the vertical tie rods 100 are provided with lifting cable clamps 200. The lifting cable clamps 200 include rotating lifting rings 210 provided at the lower chord elevation of the roof 600. The rotating lifting rings 210 are used to hang equipment. Several horizontal cables 300 are arranged in both longitudinal and transverse directions and connected to the building components around the roof 600. The longitudinal and transverse horizontal cables 300 pass through the lifting cable clamps 200 at their intersection points. The horizontal cables 300 include at least one tensioning device 310, which applies a preload to the horizontal cables 300.

[0024] This invention provides a three-dimensional hoisting structure by installing vertical tie rods 100 with hoisting cable clamps 200 on the roof 600, and pulling horizontal cables 300 longitudinally and laterally on the surrounding building components. The intersection points of the horizontal cables 300 in different directions are installed and tensioned correspondingly with the hoisting cable clamps 200. In actual use, light items can be suspended on the horizontal cables 300, and heavy equipment can be suspended at the rotating lifting rings 210. The force on the vertical tie rod 100 is distributed by the horizontal cables 300, which not only prevents the load-bearing capacity of the roof 600 from being damaged, but also improves the wind uplift resistance of the roof 600 through the tensioned horizontal cables 300, ensuring the safe operation of large exhibition buildings.

[0025] In the above embodiments, the main body of the steel cable suspension system for large-span stadium buildings of the present invention consists of several vertical tie rods 100, several hoisting cable clamps 200 corresponding to the several vertical tie rods 100, several horizontal cables 300, and a tensioning device 310. The vertical tie rods 100 are used to connect with the roof 600 and are arranged in an array so that the suspension points can evenly cover the area above the exhibition hall to meet the point arrangement requirements during exhibition setup.

[0026] The lifting cable clamp 200 is located at the end of the vertical tie rod 100 away from the roof 600. It is used to realize the positioning connection between the vertical tie rod 100 and the horizontal cable 300, and also to provide an installation position for the rotating lifting ring 210, so as to facilitate the hanging and fixing of heavy equipment.

[0027] The horizontal cables 300 are stretched in both longitudinal and transverse directions, with their two ends connected to the building components around the roof 600. After being pre-tensioned by the tensioning device 310, they are kept taut, forming a stable crisscrossing hanging grid under the roof 600. This grid can be used to hang light items directly, and it can also distribute the hanging load transmitted by the vertical tie rods 100, avoiding the concentration of load on a local part of the roof 600, reducing the additional stress on the roof 600, and minimizing the impact on the original structural bearing capacity of the roof 600.

[0028] In each horizontal cable 300, at least one tensioning device 310 is provided. The tensioning device 310 is used to adjust the overall length of the horizontal cable 300, thereby adjusting the preload of the horizontal cable 300, so that the horizontal cable 300 is always kept in a taut state, ensuring the structural stability of the entire suspension system, reducing the deformation of the roof 600 under wind load, and improving the wind uplift resistance of the roof 600.

[0029] In practical use, the aforementioned vertical tie rod 100 is connected to the corresponding horizontal cables 300 arranged longitudinally and laterally via the lifting cable clamp 200. The ends of the horizontal cables 300 are connected to the surrounding building components. After adjusting the preload through the tensioning device 310, a stable suspension system can be formed. There is no need for welding or clamping operations on the roof 600 structure, which will not damage the original anti-corrosion and fireproof coating on the surface of the roof 600, nor will it add any additional concentrated load to the local area of ​​the roof 600. In addition, when the rotating lifting ring 210 bears the load, the stress on the vertical tie rod 100 is dispersed by the horizontal cables 300, which will not cause additional damage to the main structure of the roof 600. This satisfies the diverse needs of large venues for lifting light and heavy items without affecting the safety of the original building structure. At the same time, the tension of the horizontal cables 300 also improves the wind uplift resistance of the roof 600, which is suitable for the long-term safe operation requirements of large exhibition buildings.

[0030] In the above embodiments, the cable net plane of the steel cable suspension system of the present invention is located at a certain distance below the roof 600 structure, that is, at the lower chord elevation of the roof 600. The longitudinal horizontal cable 300 and the transverse horizontal cable 300 pass through the hoisting cable clamps 200 at each intersection point in a continuous manner to ensure that the internal force of the cable is continuous and the force is uniform.

[0031] In actual installation, each longitudinal and transverse horizontal cable 300 is equipped with at least one tensioning device 310. The tensioning device 310 has a certain length adjustment range, which can accurately adjust the cable tension during installation and use to ensure that the preload is stable and meets the design requirements.

[0032] In one specific implementation, the horizontal cable 300 is uniformly made of high vanadium cable, which has high cable strength, corrosion resistance, and fatigue resistance, meets the design breaking force requirements, and can withstand repeated suspension loads for a long time, making it suitable for high-frequency use scenarios in large venues.

[0033] Based on the above embodiments, further, as Figure 3 , Figure 4 and Figure 7 , Figure 8 As shown, the building components connected by the horizontal cable 300 include reinforced concrete floor slabs 510 and steel structural columns. When the horizontal cable 300 is connected to the reinforced concrete floor slab 510, embedded parts are pre-embedded during the construction stage of the floor slab 510. Connecting ear plates 411 that match the cable lock head are welded to the anchor plate of the embedded parts. The end of the horizontal cable 300 is hinged to the ear plate through the lock head, ensuring a reliable connection without damaging the structure of the floor slab 510. When the horizontal cable 300 is connected to the steel column 520, the connecting ear plates 411 are welded during the factory processing stage of the steel column 520. On-site, only the cable lock head and ear plate need to be assembled, completely avoiding on-site high-altitude welding operations and fundamentally eliminating the safety hazards of welding to the roof 600 steel structure. At the same time, the anti-corrosion and fireproof coating on the surface of the steel column 520 is completely preserved.

[0034] Furthermore, such as Figure 3 and Figure 4 As shown, since large-span venues are usually designed with structural shapes, such as curved surfaces, when the horizontal cable 300 and the corresponding floor slab 510 are not on the same plane and are misaligned, they cannot be directly connected at a single point. In this case, a butterfly cable clamp 400 is set at the intersection of the horizontal cables 300 (e.g., Figure 6 As shown), the butterfly cable clamp 400 connects the first cable and the second cable along different directions, dividing the original single cable into two. The first cable and the second cable are respectively tied to the ear plates of the upper floor slab 510 and the lower floor slab 510. While meeting the requirements of misaligned installation, it ensures effective transmission of cable force, balanced and stable force distribution, and avoids localized stress concentration.

[0035] In one specific implementation, such as Figure 6As shown, the butterfly cable clamp 400 includes a connecting ear plate 411, an upper connecting plate 410 and a lower connecting plate 420 that clamp together, a first ear plate 412 and a second ear plate 413; wherein, the connecting ear plate 411 is connected to the lower end of the vertical tie rod 100, so as to smoothly transmit the vertical force to the butterfly cable clamp 400 and the cable system; the upper connecting plate 410 and the lower connecting plate 420 are fastened together by multiple sets of pre-tightening bolts, which clamp tightly and are not easy to loosen, and are used to connect the end of the horizontal cable 300; the first ear plate 412 is fixedly set on one side of the upper connecting plate 410 at a first predetermined angle, and is used to connect the first cable in the corresponding direction; the second ear plate 413 is fixedly set on the other side of the upper connecting plate 410 at a second predetermined angle, and is used to connect the second cable in the corresponding direction; a rotating lifting ring 210 is installed on the second ear plate 413, which can rotate freely 360° to adapt to the equipment hanging requirements of different angles and directions, making it more flexible to use.

[0036] In another embodiment of the invention, such as Figure 1 , Figure 2 and Figure 7 As shown, the vertical tie rod 100 consists of two parts: a connector 110 and a steel tie rod 120. The connector 110 consists of a positioning ear plate 111 and multiple stiffening ribs 112. The stiffening ribs 112 are symmetrically arranged on both sides of the positioning ear plate 111, which significantly improves the local stiffness and buckling resistance of the connector 110 and prevents deformation under stress. The upper end of the steel tie rod 120 is provided with a cable head, which is connected to the positioning ear plate 111 by a pin hinge, making installation convenient and the force clear. The lower end of the steel tie rod 120 is fixedly connected to the hoisting cable clamp 200, forming a complete vertical force transmission path from the main structure of the roof 600 to the hoisting cable clamp 200.

[0037] Furthermore, the vertical tie rods 100 can be arranged vertically or diagonally according to the structural layout of the roof 600, in order to adapt to large-span venues with different spans and truss forms. The aforementioned positioning ear plates 111 are welded to the tie rods of the main structure of the roof 600 during the factory prefabrication stage. The advantage of this setting is that it can improve processing accuracy and welding quality. On-site assembly and connection are required, without high-altitude hot work, which improves construction efficiency and maximizes the protection of the load-bearing performance and protective coating of the main structure of the roof 600.

[0038] In addition, after the vertical tie rod 100 is installed, the design prestress is applied. This prestress acts on the roof 600 structure, which can significantly improve the vertical stiffness of the entire large-span roof 600, effectively control the wind vibration response of the roof 600 under wind suction load, reduce the deformation amplitude, and thus greatly reduce the risk of wind uplift damage to the metal roof system under strong winds and typhoons, thereby improving the overall safety and durability of the venue from a structural perspective.

[0039] In another embodiment of the invention, such as Figure 5 As shown, the lifting clamp 200 includes a lifting lug 221 and a first clamping plate 220, a second clamping plate 230, and a third clamping plate 240 arranged sequentially. The lifting lug 221 is connected to the lower end of the vertical tie rod 100 to achieve the connection and transfer of vertical loads. The three clamping plates are uniformly tightened by multiple sets of pre-tightened bolts, resulting in high overall rigidity and strong clamping force, preventing loosening due to repeated load application. The lifting lug 221 is fixed to the top surface of the first clamping plate 220, and the rotating lifting ring 2... 10 is installed at the bottom of the third clamping plate 240 and can rotate freely; a longitudinal through groove is reserved between the first clamping plate 220 and the second clamping plate 230 for threading the longitudinal horizontal cable 300; a transverse through groove is reserved between the second clamping plate 230 and the third clamping plate 240 for threading the transverse horizontal cable 300; the longitudinal through groove and the transverse through groove are perpendicular to each other, so that the longitudinal and transverse cables cross and pass through in an orderly manner without interfering with each other, realizing the integrated force of the cable and the clamp, and improving the overall stability of the system.

[0040] By setting up the lifting cable clamp 200, the longitudinal horizontal cables 300 and the transverse horizontal cables 300 can be arranged in layers, avoiding the problem of mutual compression and deformation at the intersection of the cables, ensuring that each cable can be evenly stressed. At the same time, the lifting cable clamp 200 is fastened to the intersection of the two cables with different directions by pre-tightening bolts, which not only achieves a stable connection between the vertical tie rod 100 and the horizontal cable 300 system, but also evenly distributes the vertical hanging load to the longitudinal and transverse horizontal cables 300, giving full play to the bearing capacity of the horizontal cables 300 and avoiding load concentration that could damage the roof 600 structure.

[0041] In another embodiment of the present invention, the above-mentioned horizontal cable 300 is made of high vanadium cable. High vanadium cable has the advantages of high tensile strength, good fatigue resistance and environmental corrosion resistance, which fully meets the needs of long-term repeated use of the venue. The horizontal cable 300 is manufactured in strict accordance with the predetermined breaking force design requirements, with sufficient safety reserve. It can withstand multiple hanging loads at the same time without the risk of breakage or loosening, ensuring the safety and reliability of the entire hanging operation.

[0042] In the above embodiments, the horizontal cables 300, which are continuously arranged in both longitudinal and transverse directions, can be directly used to suspend lightweight items such as banners, advertising curtains, and lightweight signs, achieving full coverage of lightweight hanging in the exhibition hall without any blind spots. The rotating ring 210 at the bottom of the lifting cable clamp 200 has the characteristics of high load-bearing capacity and high safety. With the auxiliary force of the horizontal cables 300, it can be used to suspend heavy equipment such as large exhibition facilities, stage lighting, sound, and performance equipment, taking into account both lightweight and heavy-duty hanging needs. One system can meet the needs of various scenarios such as exhibition setup, event organization, and cultural performances, greatly improving the flexibility and economy of venue operation.

[0043] Furthermore, to reduce the deformation of the 600-span roof system under wind suction and ensure good wind uplift resistance of the metal roof system, the 600-span roof structure design incorporates the steel cable suspension system of this invention for large-span stadium-type buildings, taking into account the operational requirements of flexible internal suspension within the 600-span roof. The beneficial effects of this system on the 600-span roof structure under wind suction are analyzed below: When analyzing the wind load displacement of the 600m roof structure, the preload of the vertical tie rod 100 of the steel cable suspension system for large-span stadium-type buildings is considered, which is equivalent to a uniformly distributed load applied to the 600m roof structure. The following analysis will compare and contrast the two cases: one without considering the preload of the vertical steel tie rod 120 of the steel cable suspension system, and the other with considering the preload of the steel cable suspension system, to illustrate the beneficial effect of the cable suspension system on the wind resistance of the structure.

[0044] The displacement analysis of the above load conditions shows that the maximum vertical displacement of the 600mm roof structure under the dead load + live load condition is 200mm. After considering the pre-tension of the suspension, the vertical displacement increases to 230mm. Although the suspension load increases the vertical displacement of the structure under normal use conditions, the vertical displacement of the structure under the dead load + live load + suspension pre-tension + wind suction load condition is only 116mm. That is, when the wind suction condition occurs, the structural displacement is significantly reduced, which is equivalent to the significant reduction in the vertical deformation of the 600mm roof during a typhoon. The suspension pre-tension load condition has a beneficial effect on the structure, reducing the deformation of the metal roof system and improving the overall wind resistance performance of the structure.

[0045] Under strong winds, the powerful suction and pulsating effect caused by wind loads, along with the wind vibration caused by the flexible roof structure, combine to create a dynamic effect on the roof system under wind loads, often resulting in significant damage to metal roofs. While the effects of strong winds themselves cannot be controlled by structural design, controlling the vertical displacement of the roof 600 structure is entirely feasible during its design. Therefore, the prestressed steel cable suspension system employed in this invention, with its prestressed vertical members, has a beneficial effect on the vertical stiffness of the entire roof 600. By increasing the stiffness of the roof 600 through prestressed vertical members, the wind gusts caused by the roof 600 are indirectly controlled, reducing the damage to the metal roof system under strong typhoon conditions.

[0046] Based on the above embodiments, the actual installation and use process of the steel cable suspension system for large-span stadium buildings of the present invention is as follows: During the factory processing of the 600 steel structure of the roof and the 520 steel columns, the positioning ear plate 111 of the vertical tie rod 100 and the cable connection ear plate 411 are pre-welded to the designated positions; during the construction of the reinforced concrete floor slab 510, the cable connection embedded parts and ear plates are accurately embedded.

[0047] During on-site construction, the upper end of the steel tie rod 120 is hinged to the positioning ear plate 111, and the lower end is installed with the hoisting cable clamp 200. Then, the horizontal cables 300 are continuously laid along the longitudinal and transverse directions, so that the cables continuously pass through the corresponding through slots of each hoisting cable clamp 200. The lock heads at both ends of the cables are reliably connected to the ear plates of the embedded parts of the floor slab 510 or the ear plates of the pre-welded parts of the steel column 520. After installation, the longitudinal and transverse horizontal cables 300 are tensioned synchronously through the tensioning device 310, and the tension force is strictly controlled to reach the design value. The deformation of the main structure is monitored in real time to ensure the stability of the system.

[0048] During installation, when the horizontal cable 300 is misaligned with the floor slab 510, butterfly cable clamps 400 are installed at the corresponding intersection points. The upper and lower floor slabs 510 ear plates are connected by the first cable and the second cable respectively to complete the misalignment node construction.

[0049] In practical use, light items can be directly suspended on the horizontal and longitudinal cables 300, while heavy equipment can be suspended at the rotating ring 210. The hanging load of the vertical tie rod 100 is evenly distributed to the surrounding building components through the horizontal and longitudinal cables, which will not cause local overload to the roof 600. At the same time, the prestress of the vertical tie rod 100 continuously improves the vertical stiffness of the roof 600, suppresses wind vibration, reduces deformation, significantly enhances the wind uplift resistance of the metal roof, and protects the structure and anti-corrosion and fireproof coating of the roof 600 throughout the process, ensuring the safe, efficient and stable operation of large exhibition venues.

[0050] In summary, this invention provides a steel cable suspension system for large-span stadium-type buildings. This system includes: several vertical tie rods arranged in an array connected to the roof; each vertical tie rod has a lifting clamp at its end; the lifting clamp includes a rotating ring positioned at the lower chord elevation of the roof for hanging equipment; several horizontal cables arranged longitudinally and laterally, connected to the building components around the roof; the longitudinal and lateral horizontal cables intersecting at their respective lifting clamps; and each horizontal cable includes at least one tensioning device that applies preload to the cable. This invention involves installing vertical tie rods with lifting cable clamps on the roof, and stretching horizontal cables longitudinally and laterally along the surrounding building components. The intersection points of the horizontal cables in different directions are installed and tensioned corresponding to the lifting cable clamps, forming a three-dimensional lifting structure. In actual use, light items can be suspended from the horizontal cables, while heavy equipment can be suspended from the rotating lifting rings. The force on the vertical tie rods is distributed by the horizontal cables, which not only prevents damage to the roof's load-bearing capacity but also improves the roof's wind uplift resistance through the tensioned horizontal cables, ensuring the safe operation of large-scale exhibition buildings.

[0051] It should be understood that the application of the present invention is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A steel cable suspension system for large-span stadium-type buildings, characterized in that, The steel cable suspension system for the large-span stadium-type buildings includes: Several vertical tie rods are connected to the roof in an array. The ends of the vertical tie rods are provided with lifting cable clamps. The lifting cable clamps include rotating lifting rings provided at the lower chord elevation of the roof. The rotating lifting rings are used to hang equipment. Several horizontal cables are arranged in both longitudinal and transverse directions and connected to the building components around the roof. The longitudinal and transverse horizontal cables pass through the hoisting cable clamps at their intersection points. The horizontal cable includes at least one tensioning device that applies a preload to the horizontal cable.

2. The steel cable suspension system for large-span stadium-type buildings according to claim 1, characterized in that, The building components include floor slabs and steel columns; When the horizontal cable is connected to the floor slab, the end of the horizontal cable is connected to the ear plate embedded in the floor slab; When the horizontal cable is connected to the steel column, the end of the horizontal cable is connected to the lug pre-welded to the steel column.

3. The steel cable suspension system for large-span stadium-type buildings according to claim 2, characterized in that, When the horizontal cable is misaligned with the floor slab at the corresponding position, a butterfly cable clamp is set at the intersection of the horizontal cable. The butterfly cable clamp is provided with a first cable and a second cable along different directions. The first cable and the second cable are respectively connected to the ear plates of the upper and lower floor slabs.

4. The steel cable suspension system for large-span stadium-type buildings according to claim 3, characterized in that, The butterfly clip includes: Connect the connecting ear plate to the vertical tie rod; An upper connecting plate and a lower connecting plate are clamped together, and the upper connecting plate and the lower connecting plate are connected by pre-tightening bolts; The first ear plate is fixedly disposed on one side of the upper connecting plate at a first predetermined angle; The second ear plate is fixedly disposed on the other side of the upper connecting plate at a second predetermined angle; The second ear plate is provided with the rotating lifting ring.

5. The steel cable suspension system for large-span stadium-type buildings according to claim 1, characterized in that, The vertical tie rod includes: The connector includes a positioning ear plate and several stiffening ribs disposed on both sides of the positioning ear plate; A steel tie rod includes a cable head at one end, the cable head being connected to the positioning lug; The hoisting cable clamp is connected to the other end of the steel tie rod.

6. The steel cable suspension system for large-span stadium-type buildings according to claim 5, characterized in that, The vertical tie rod is connected to the roof in a vertical or oblique direction, and the positioning ear plate is pre-welded to the main structure of the roof.

7. The steel cable suspension system for large-span stadium-type buildings according to claim 6, characterized in that, The vertical tie rod is prestressed, and the prestress is used to improve the vertical stiffness of the roof.

8. The steel cable suspension system for large-span stadium-type buildings according to claim 1, characterized in that, The lifting sling clamp includes: The lifting lugs are connected to the vertical tie rod; The first clamping plate, the second clamping plate, and the third clamping plate are clamped together and connected by pre-tightening bolts. The lifting lug is set on the first clamping plate, and the rotating lifting ring is set on the third clamping plate. A longitudinal through groove is pre-set between the first clamping plate and the second clamping plate; A transverse through groove is pre-set between the second clamping plate and the third clamping plate.

9. The steel cable suspension system for large-span stadium-type buildings according to claim 1, characterized in that, The horizontal cable is a high-vanadium cable, and the horizontal cable meets the predetermined breaking force design requirements.

10. The steel cable suspension system for large-span stadium-type buildings according to claim 1, characterized in that, The horizontal cables arranged longitudinally and laterally are used to suspend light items, and the rotating rings are used to suspend heavy equipment.

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