A temporary support system for construction of special-shaped steel roof structures

Abstract

The present invention discloses a temporary support system for the construction of a special-shaped steel roof structure, belonging to the field of building construction technology. The temporary tension and compression support system includes tension and compression rods welded to the rear side of a space grid and arranged along a transverse direction. An elastic band is simultaneously wrapped around the middle and outer sides of the tension and compression rods. One end of the elastic band is fixedly connected to the steel structure core tube, and the other end of the elastic band passes through the upper side of the tension and compression rods, then passes through the upper side of a revolving drum and is wound onto a reel. The elastic band can be reeled by rotating the reel. The revolving drum is flat, and one end face of the revolving drum is rotatably connected to a support seat via a hollow rotating shaft. The other side of the revolving drum abuts against the surface of the elastic band. A revolving assembly is connected to the middle of the revolving drum to drive the revolving drum to rotate around the hollow rotating shaft. The support seat is fixed to the building beam plate. The system of the present invention can simultaneously ensure the conversion between compression and tension to better adapt to on-site construction needs and the complex surrounding construction environment.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and particularly relates to a temporary support system for the construction of a special-shaped steel roof structure. Background Art

[0002] Existing special-shaped steel roofs are formed by connecting several roof units to meet certain architectural design requirements. The roof structure is completely disjointed, preventing the formation of a closed tension-compression ring and the use of a spoke-type cable-stayed structure. Therefore, a conventional truss structure system was chosen, supported by the underlying concrete structure. Roof units typically consist of special-shaped spatial cantilever trusses, a spatial grid, and a steel core tube. During construction, the lower core tube of the roof is constructed first, followed by the upper spatial grid. A short temporary support system is installed below the grid, which is now in compression. Finally, the special-shaped spatial cantilever trusses at the ends of the cantilever are assembled, and during this process, the force on the short temporary support system changes from compression to tension. Traditional support systems cannot meet these requirements. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a temporary support system for the construction of special-shaped steel roof structures, which can simultaneously ensure the conversion between pressure and tension during the construction process, so as to better adapt to the on-site construction needs and the complex surrounding construction environment.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention discloses a temporary support system for the construction of a special-shaped steel roof structure, wherein the special-shaped steel roof structure is formed by connecting a plurality of steel roof units, wherein the steel roof unit comprises a special-shaped space cantilever truss, a space grid connecting the special-shaped space cantilever truss, and a steel structure core tube supporting the special-shaped space cantilever truss and the space grid at the same time. The temporary support system comprises a tension and compression rod welded to the rear side of the space grid and arranged along the transverse direction, wherein both ends of the tension and compression rod are fixedly connected to a pressure plate, and the pressure plate is connected to a pressure support assembly; the middle and outer sides of the tension and compression rods are simultaneously An elastic belt is wrapped around it, one end of which is fixedly connected to the core tube of the steel structure, and the other end of the elastic belt passes through the upper side of the tension and compression rod, and then passes through the upper side of the turning cylinder and is wound around the reel. The elastic belt can be wound by rotating the reel. The turning cylinder is flat and cylindrical, and one end face of the turning cylinder is rotatably connected to the support seat through a hollow rotating shaft. The other side face of the turning cylinder abuts against the surface of the elastic belt. The middle part of the turning cylinder is connected to a turning assembly that drives the turning cylinder to rotate around the hollow rotating shaft, and the support seat is fixed on the building beam plate.

[0006] Furthermore, the center of the hollow shaft is rotatably connected to a central shaft, one end of the central shaft is connected to a first motor, and the other end of the central shaft is connected to a first transmission wheel after passing through the hollow shaft, the first transmission wheel is connected to a second transmission wheel through a first transmission belt, and the second transmission wheel is coaxially connected to a camshaft, and the camshaft is rotatably arranged in a flip cylinder, and a spiral groove is provided on the surface of the camshaft, and the spiral groove is equipped with an extrusion assembly, and the extrusion assembly can move along the axial direction of the camshaft to compress the elastic belt to detach it from the reel.

[0007] Furthermore, the extrusion assembly includes an extrusion seat, a pin shaft fixed on the back side of the extrusion seat, and a limiting plate fixed on the front side of the extrusion seat. The extrusion seat is slidably fitted on the guide rod fixed on the inner side of the flip cylinder, the outer end of the pin shaft cooperates with the spiral groove, and the side of the limiting plate is provided with a limiting groove for cooperation with the elastic band.

[0008] Furthermore, a first transmission shaft and a second transmission shaft are simultaneously rotated on the support base, and the transmission gears on the first transmission shaft and the second transmission shaft are simultaneously engaged with the central gear. The central gear is connected to the third transmission wheel through a second transmission belt, and the third transmission wheel is connected to the output end of the second motor. The second motor is fixed on the support base.

[0009] Furthermore, an open slot is provided on the limiting plate, a support rod is connected to the open slot through a nut, and an auxiliary push plate is connected to the lower end of the support rod, and the auxiliary push plate is located on the lower side of the first transmission shaft and the second transmission shaft.

[0010] Furthermore, the elastic belt includes an elastic belt body, and a plurality of support lines are evenly spaced on the surface of the belt body, and the support lines extend along the length direction of the belt body.

[0011] Furthermore, the flip assembly includes a support, a flip rod and a hydraulic cylinder. The support is fixed in the middle of the flip cylinder, one end of the flip rod is fixedly connected to the support, and the other end of the flip rod is connected to the hydraulic cylinder. The hydraulic cylinder is installed on the support seat.

[0012] Furthermore, the pressure support assembly includes a vertical rod, a pressure block, a pressure cylinder, a ball head and an elastic support ring. The ball head is fixed to the lower outer side of the pressure cylinder. A ball groove for rotatably cooperating with the ball head is opened on the building beam plate. The upper end of the vertical rod is fixed to the pressure plate, and the lower end of the vertical rod passes through the pressure cylinder. The pressure block is fixed to the upper part of the vertical rod. A step for installing an elastic support ring is provided in the pressure cylinder, and the elastic support ring is provided on the outer side of the vertical rod.

[0013] Furthermore, the elastic support ring includes several spring steel blocks stacked vertically, a spring is connected between two adjacent spring steel blocks, a center hole is opened in the center of the spring steel block, and a through hole is also opened on the spring steel block. The through hole is formed on a circle centered on the center hole, and a prestressed cable is passed through the through hole. The spring is sleeved on the outside of the prestressed anchor cable, and the lower end of the prestressed cable passes through the spring steel block and is connected to the pressure cylinder through an anchor.

[0014] The beneficial effects of the present invention are:

[0015] The present invention provides a temporary support system for the construction of special-shaped steel roof structures. During the installation of a spatial grid, the outer ends of the spatial grid extend outward, allowing for temporary support via the pressure support components of the temporary support system. After the spatial grid is installed, the construction cantilever assembles the special-shaped spatial cantilever trusses at the ends. During this process, the force on the short temporary support system changes from compression to tension. At this time, the elastic band acts to provide temporary tension, and the two forces do not affect each other, ensuring the simultaneous transition between compression and tension to better adapt to on-site construction needs and the complex surrounding construction environment.

[0016] In the support system disclosed in this invention, a reel provides winding stress for the elastic band, allowing the reel to be released at varying lengths according to height requirements. After flipping, the reel pre-tightens the elastic band, ensuring the stability of the irregular-shaped cantilever truss. The reel pre-tightens the elastic band by controlling the entire reel assembly, making control more convenient. Both the tension and compression sections are provided with a force medium via tension and compression rods, resulting in a more compact structure and ease of use.

[0017] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention provides the following drawings for illustration:

[0019] Figure 1 It is a structural schematic diagram of the temporary support system of the present invention;

[0020] Figure 2 The structure of the tension component of the present invention is schematically shown Figure 1 ;

[0021] Figure 3 The structure of the tension component of the present invention is schematically shown Figure 2 ;

[0022] Figure 4 is a side view of the tension assembly of the present invention;

[0023] Figure 5 It is a structural diagram of the flip cylinder;

[0024] Figure 6 for Figure 5 Enlarged view at point A;

[0025] Figure 7 is a schematic diagram of the structure of the extrusion component;

[0026] Figure 8 is a structural diagram of a pressure support assembly;

[0027] Figure 9 for Figure 8 Enlarged view at point B;

[0028] Figure 10 The diagram below shows the winding principle of the reel.

[0029] The markings in the accompanying drawings are as follows: special-shaped space cantilever truss 1, space grid 2, steel structure core tube 3, tension and compression rod 4, pressure plate 5, pressure support assembly 6, elastic belt 7, turning cylinder 8, reel 9, hollow shaft 10, support seat 11, central shaft 12, first motor 13, first transmission wheel 14, first transmission belt 15, second transmission wheel 16, camshaft 17, spiral groove 18, extrusion seat 19, pin 20, limit plate 21, guide rod 22, limit groove 23, first Transmission shaft 24, second transmission shaft 25, center gear 26, second transmission belt 27, third transmission wheel 28, second motor 29, open slot 30, nut 31, support rod 32, auxiliary push plate 33, belt body 34, support line 35, support 36, flip rod 37, hydraulic cylinder 38, vertical rod 39, pressure block 40, pressure cylinder 41, ball head 42, ball groove 43, step 44, spring steel block 45, spring 46, center hole 47, through hole 48, prestressed cable. DETAILED DESCRIPTION

[0030] The Shanghai Jiushi International Equestrian Center project is small in scale, with a small site and height restrictions, but it also features complex functions and demanding architectural aesthetics, requiring each structural unit to be unique. By adapting conventional plane trusses or spatial trusses, the two steel roofs for the equestrian arena each utilize a specialized spatial truss structure with a smaller steel footprint. This ensures the architectural effect is more aligned with the project's characteristics while also meeting the requirements for an exposed steel roof structure. Traditional construction methods utilize cantilevered roof trusses, requiring numerous temporary supports and precise unloading to ensure consistent overall roof deformation with the design. However, these methods present drawbacks such as high construction difficulty, the need for extensive temporary high-altitude supports, and difficulty adapting to the complex surrounding construction environment.

[0031] like Figures 1 to 10As shown, the present invention provides a temporary support system for the construction of a special-shaped steel roof structure. The special-shaped steel roof structure is formed by connecting a number of steel roof units, wherein each steel roof unit includes a special-shaped space cantilever truss 1, a space grid 2 connecting the special-shaped space cantilever truss 1, and a steel structure core tube 3 that supports the special-shaped space cantilever truss 1 and the space grid 2 at the same time. During construction, the lower core tube of the roof is constructed first, and then the upper space grid 2 of the roof at the tail is constructed. At this time, a short-distance temporary support system is set under the space grid 2, and the support is under compression; finally, the special-shaped space cantilever truss 1 at the cantilever assembly end is constructed. During the process, the force on the short temporary support system changes from compression to tension.

[0032] Specifically, with the spatial grid 2 and the irregular spatial cantilever truss 1 extending longitudinally, the temporary support system disclosed herein includes tension and compression rods 4 welded to the rear side of the spatial grid 2 and arranged transversely. Both ends of the tension and compression rods 4 are fixedly connected to pressure plates 5, which are parallel to the horizontal plane. The pressure plates 5 are connected to pressure support assemblies 6. During installation of the spatial grid 2, since the outer ends of the spatial grid 2 extend outward and the center of gravity of the spatial grid 2 is positioned rearward, the pressure support assemblies 6 of the temporary support system of the present invention can provide temporary support.

[0033] When tension is required, the tension assembly includes an elastic band 7 wrapped around the outside of the middle of the tension and compression rods 4. The elastic band 7 is located in the middle of the tension and compression rods 4 to ensure that it does not interfere with the pressure plate 5. One end of the elastic band 7 is fixedly connected to the steel structure core tube 3 and is fixed to the side of the steel structure core tube 3 by anchor nails. The other end of the elastic band 7 passes through the upper side of the tension and compression rods 4, then passes through the upper side of the flip cylinder 8 and is wound onto the reel 9. The elastic band 7 can be wound by rotating the reel 9; the reel 9 provides winding stress for the elastic band 7, so that the reel 9 of different lengths can be released according to different height requirements.

[0034] Furthermore, the present invention's turning cylinder 8 is flat-cylinder-shaped. One end face of the turning cylinder 8 is rotatably connected to a support seat 11 via a hollow shaft 10. The other side of the turning cylinder 8 abuts against the surface of the elastic band 7, driving the elastic band 7 to deform and thereby increase its tensile stress. A turning assembly is connected to the middle of the turning cylinder 8, which drives the turning cylinder 8 to rotate about the hollow shaft 10. The support seat 11 is fixed to the building beam plate. After the turning cylinder 8 is turned over, it can pre-tighten the elastic band 7 to ensure the stability of the irregular spatial cantilever truss 1. The pre-tightening of the elastic band 7 can be achieved by controlling the turning assembly as a whole, making control more convenient.

[0035] In this embodiment, the center of the hollow shaft 10 is rotatably connected to the center shaft 12, and the axis of the center shaft 12 is perpendicular to the support base 11. One end of the center shaft 12 is connected to the first motor 13, and the first motor 13 is fixed on the support base 11. The other end of the center shaft 12 passes through the hollow shaft 10 and is connected to the first transmission wheel 14. The diameter of the center shaft 12 is smaller than the diameter of the hollow shaft 10, and the two do not interfere with each other. The first transmission wheel 14 is connected to the second transmission wheel 16 through the first transmission belt 15. The surfaces of the first transmission wheel 14 and the second transmission wheel 16 are both provided with transmission teeth that cooperate with the transmission belt. The second transmission wheel 16 is coaxially connected to the camshaft 17, and the camshaft 17 is rotatably set in the flip cylinder 8. A spiral groove 18 is provided on the surface of the camshaft 17. The spiral groove 18 is cooperated with an extrusion component. The extrusion component can move along the axial direction of the camshaft 17 to compress the elastic belt 7 to separate from the reel 9. The extrusion assembly includes an extrusion seat 19, a pin shaft 20 fixed on the back side of the extrusion seat 19, and a limiting plate 21 fixed on the front side of the extrusion seat 19. The extrusion seat 19 is slidably fitted on a guide rod 22 fixed on the inner side of the flip cylinder 8. The outer end of the pin shaft 20 cooperates with the spiral groove 18, and the side of the limiting plate 21 is provided with a limiting groove 23 for cooperating with the elastic band 7.

[0036] In specific operation, the first motor 13 drives the first transmission wheel 14 to rotate via the central shaft 12, the first transmission wheel 14 drives the second transmission wheel 16 to rotate via the first transmission belt 15, and the second transmission wheel 16 drives the camshaft 17 to rotate. When the first motor 13 rotates forward or reverse, the spiral groove 18 cooperates with the pin 20, and the spiral groove 18 can drive the pin 20 to move back and forth along the axial direction of the camshaft 17. Since the reel 9 is driven by the motor, the braking stability of the motor is relatively low. When the pin 20 drives the limiting plate 21 to move toward the side where the support seat 11 is located, the limiting groove 23 can squeeze the extrusion belt together along the width direction of the extrusion belt, so that the elastic belt 7 can be released from the control of the reel 9 after compression, ensuring that the elastic belt 7 has a stable connection effect.

[0037] In this embodiment, a first transmission shaft 24 and a second transmission shaft 25 are simultaneously rotatably provided on the support base 11. The transmission gears on the first transmission shaft 24 and the second transmission shaft 25 are simultaneously meshed with a central gear 26. The central gear 26 is connected to a third transmission wheel 28 via a second transmission belt 27. The third transmission wheel 28 is connected to the output end of a second motor 29, which is fixed to the support base 11. The provision of the first transmission shaft 24 and the second transmission shaft 25 is used to guide the transmission of the elastic belt 7, so that the turning drum 8 can better bear the force.

[0038] In this embodiment, the limiting plate 21 is provided with an open slot 30, to which a support rod 32 is connected via a nut 31. The lower end of the support rod 32 is connected to an auxiliary push plate 33, which is located below the first and second transmission shafts 24 and 25. The auxiliary push plate 33 assists in tightening the elastic band 7, achieving a more effective compression. After the push is completed, the auxiliary push plate 33 returns to its original position along with the limiting plate 21, and the elastic band 7 returns to its original shape due to its own elasticity. The reel 9 can then function normally on the elastic band 7, thereby completing the winding operation of the elastic band 7.

[0039] In this embodiment, the elastic belt 7 includes an elastic belt body 34 made of rubber material. A plurality of support wires 35 are evenly spaced on the surface of the belt body 34 and extend along the length of the belt body 34. The support wires 35, which can be made of cords or the like, can guide the belt body 34 during winding and prevent irregular deformation of the belt body 34.

[0040] In this embodiment, the tilting assembly includes a support 36, a tilting rod 37, and a hydraulic cylinder 38. The support 36 is fixed to the middle of the tilting drum 8. One end of the tilting rod 37 is fixedly connected to the support 36, and the other end of the tilting rod 37 is connected to the hydraulic cylinder 38. The hydraulic cylinder 38 is mounted on the support base 11. When the hydraulic cylinder 38 is extended or shortened, it can drive the tilting drum 8 to tilt about the hollow shaft 10.

[0041] In this embodiment, the pressure support assembly 6 includes a vertical rod 39, a pressure block 40, a pressure cylinder 41, a ball head 42 and an elastic support ring. The ball head 42 is fixed to the lower outer side of the pressure cylinder 41. A ball groove 43 is provided on the building beam plate to rotate with the ball head 42. The upper end of the vertical rod 39 is fixed to the pressure plate 5. The lower end of the vertical rod 39 passes through the pressure cylinder 41. The pressure block 40 is fixed to the upper part of the vertical rod 39. A step 44 for installing the elastic support ring is provided in the pressure cylinder 41. The elastic support ring is provided on the outer side of the vertical rod 39. Through the cooperation between the ball head 42 and the ball groove 43, a certain degree of deflection of the spatial grid 2 can be accommodated. When the pressure plate 5 drives the vertical rod 39 to move downward, the pressure block 40 also moves downward. The pressure block 40 can act on the elastic support ring and be elastically supported by the elastic support ring.

[0042] In this embodiment, the elastic support ring includes a plurality of spring steel blocks 45 stacked vertically, with a spring 46 connected between two adjacent spring steel blocks 45. A center hole 47 is provided at the center of the spring steel block 45, and a through hole 48 is also provided on the spring steel block 45. The through hole 48 is formed on a circumference centered on the center hole 47. A prestressed cable is passed through the through hole 48. The spring 46 is sleeved on the outside of the prestressed cable. The lower end of the prestressed cable passes through the spring steel block 45 and is connected to the pressure cylinder 41 via an anchor. The prestressed cable can be used to change the gap between the spring steel blocks 45. The combination of the spring steel blocks 45 is used to support the above structure, which can ensure a good support effect and will not hinder the deflection of the vertical rod 39.

[0043] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A temporary support system for the construction of a special-shaped steel roof structure, wherein the special-shaped steel roof structure is formed by connecting a plurality of steel roof units, each of which includes a special-shaped spatial cantilever truss, a spatial grid connecting the special-shaped spatial cantilever truss, and a steel structure core tube that supports both the special-shaped spatial cantilever truss and the spatial grid, characterized in that: The temporary support system includes tension and compression rods welded to the rear side of the space grid and arranged along the transverse direction, the two ends of the tension and compression rods are fixedly connected to the pressure plate, and the pressure plate is connected to the pressure support assembly; an elastic belt is wrapped around the outer middle part of the tension and compression rods at the same time, one end of the elastic belt is fixedly connected to the steel structure core tube, and the other end of the elastic belt passes through the upper side of the tension and compression rods, and then passes through the upper side of the turning drum and is wound onto the reel, and the elastic belt can be wound up by rotating the reel; the turning drum is a flat cylinder, and one end face of the turning drum is rotatably connected to the support seat through a hollow rotating shaft, and the other side face of the turning drum abuts against the surface of the elastic belt, and the middle part of the turning drum is connected to a turning assembly that drives the turning drum to rotate around the hollow rotating shaft, and the support seat is fixed on the building beam plate; the hollow rotating shaft The center of the rotary shaft is connected to a central shaft, one end of the central shaft is connected to the first motor, and the other end of the central shaft is connected to the first transmission wheel after passing through the hollow rotating shaft. The first transmission wheel is connected to the second transmission wheel through the first transmission belt, and the second transmission wheel is coaxially connected to the camshaft. The camshaft is rotatably arranged in the turning cylinder, and a spiral groove is provided on the surface of the camshaft, and the spiral groove is matched with an extrusion assembly, which can move along the axial direction of the camshaft to compress the elastic belt to separate from the reel; the extrusion assembly includes an extrusion seat, a pin shaft fixed on the back side of the extrusion seat, and a limiting plate fixed on the front side of the extrusion seat, and the extrusion seat is slidably matched on the guide rod fixed on the inner side of the turning cylinder, the outer end of the pin shaft cooperates with the spiral groove, and the side of the limiting plate is provided with a limiting groove for the elastic belt to cooperate with.

2. A temporary support system for construction of special-shaped steel roof structures according to claim 1, characterized in that: A first transmission shaft and a second transmission shaft are arranged on the support base for simultaneous rotation, and the transmission gears on the first transmission shaft and the second transmission shaft are simultaneously engaged with the central gear, and the central gear is connected to the third transmission wheel through a second transmission belt, and the third transmission wheel is connected to the output end of the second motor, and the second motor is fixed on the support base.

3. A temporary support system for construction of special-shaped steel roof structures according to claim 2, characterized in that: An open slot is provided on the limiting plate, a support rod is connected to the open slot through a nut, and an auxiliary push plate is connected to the lower end of the support rod. The auxiliary push plate is located at the lower side of the first transmission shaft and the second transmission shaft.

4. The temporary support system for construction of a special-shaped steel roof structure according to claim 1, characterized in that: The elastic belt comprises an elastic belt body. A plurality of support lines are evenly spaced on the surface of the belt body, and the support lines extend along the length direction of the belt body.

5. The temporary support system for construction of special-shaped steel roof structure according to claim 1, characterized in that: The flip assembly includes a support, a flip rod and a hydraulic cylinder. The support is fixed to the middle of the flip cylinder. One end of the flip rod is fixedly connected to the support, and the other end of the flip rod is connected to the hydraulic cylinder. The hydraulic cylinder is installed on the support seat.

6. A temporary support system for construction of a special-shaped steel roof structure according to any one of claims 1 to 5, characterized in that: The pressure support assembly includes a vertical rod, a pressure block, a pressure cylinder, a ball head and an elastic support ring. The ball head is fixed to the lower outer side of the pressure cylinder. A ball groove for rotatably cooperating with the ball head is provided on the building beam plate. The upper end of the vertical rod is fixed to the pressure plate. The lower end of the vertical rod passes through the pressure cylinder. The pressure block is fixed to the upper part of the vertical rod. A step for installing an elastic support ring is provided in the pressure cylinder. The elastic support ring is provided on the outer side of the vertical rod.

7. A temporary support system for construction of a special-shaped steel roof structure according to claim 6, characterized in that: The elastic support ring includes several spring steel blocks stacked vertically, and a spring is connected between two adjacent spring steel blocks. A center hole is opened in the center of the spring steel block, and a through hole is also opened on the spring steel block. The through hole is formed on a circumference centered on the center hole. A prestressed cable is passed through the through hole. The spring is sleeved on the outside of the prestressed anchor cable. The lower end of the prestressed cable passes through the spring steel block and is connected to the pressure cylinder through an anchor.

Images