Temporary supporting structure for mounting large-span steel structure

Abstract

The utility model relates to the technical field of steel structure construction, in particular to a temporary supporting structure for large-span steel structure installation, the temporary supporting structure comprises a steel pipe column and a sandbox support, the bottom end of the steel pipe column is fixedly connected with a supporting body, the top end of the steel pipe column is fixedly connected with the sandbox support, and the sandbox support is used for supporting a large-span component; the steel pipe column is formed by connecting a plurality of steel pipe sections, each steel pipe section comprises a pipe body and flange plates fixedly arranged on the two sides of the pipe body, and the adjacent steel pipe sections are connected through flange plate bolts. Anchor bolts are embedded in the supporting body, and the bottom of the steel pipe column is fixedly connected with the supporting body through the anchor bolts. According to the temporary supporting structure, the adjacent steel pipe sections are connected through bolts, the steel pipe sections and the sandbox supports are connected through bolts, and the bottoms of the steel pipe columns and the supporting bodies are connected through anchor bolts and nuts, so that workers can conveniently mount and dismount the temporary supporting structure, and the mounting efficiency of the large-span component is improved.

Description

Technical Field

[0001] The present application relates to the technical field of steel structure construction, and in particular to a temporary support structure for installing a large-span steel structure. Background Art

[0002] As the scale of construction projects continues to expand, the application of large-span structures is becoming increasingly widespread, especially in the construction of large public facilities such as stadiums and convention and exhibition centers.

[0003] In the prior art, large-span structures are usually composed of components such as steel beams and steel trusses. Steel beams and steel trusses have the characteristics of large span, heavy weight, and high installation height, which brings great difficulties to the installation of large-span structures.

[0004] During the installation of large-span components (steel beams and steel trusses), if the span of the beams and steel trusses is small, they can be directly hoisted using lifting equipment. If the span of the beams and steel trusses is large, the beams and steel trusses can be hoisted in parts and spliced ​​together at high altitude.

[0005] When large-span components (steel beams or steel trusses) are hoisted in sections and assembled at high altitude, temporary support is required. Conventional technology employs temporary support structures (e.g., supporting steel pipes). One end of the temporary support structure is fixed to a supporting structure (raft, floor, or ground), while the other end supports the large-span components, facilitating the assembly of large-span structures at high altitude. However, the supporting steel pipes are often welded, making installation and removal of the temporary support structure difficult. Utility Model Content

[0006] In order to facilitate the installation and disassembly of temporary support structures for large-span components, this application provides a temporary support structure for the installation of large-span steel structures, which adopts the following technical solutions:

[0007] A temporary support structure for the installation of large-span steel structures, wherein the temporary support structure is arranged between a support body and a large-span component, and is used to temporarily support the large-span component. The temporary support structure comprises a steel pipe column and a sandbox support, wherein the bottom end of the steel pipe column is fixedly connected to the support body, and the top end of the steel pipe column is bolted to the sandbox support, and the sandbox support is used to support the large-span component; the steel pipe column is formed by connecting a plurality of steel pipe sections, and the steel pipe section comprises a pipe body and flanges fixedly arranged on both sides of the pipe body, and adjacent steel pipe sections are bolted together by the flanges; the support body is pre-embedded with anchor bolts, and the bottom of the steel pipe column is fixedly connected to the support body by anchor bolts.

[0008] By adopting the above technical solution, adjacent steel pipe sections, steel pipe sections and sand box supports are connected by bolts, and the bottom of the steel pipe column and the support body are also connected by anchor bolts and nuts, which makes it convenient for workers to install and dismantle the temporary support structure and improves the installation efficiency of large-span components; and by arranging sand box supports between the steel pipe column and the large-span components, the filling height of the dry sand in the sand box can be used to flexibly adjust the elevation of the temporary support structure, so that the temporary support structure has a good supporting effect on the large-span components.

[0009] Optionally, the sand box support includes a lower fixed cylinder, an upper movable cylinder and a sealing assembly; the lower fixed cylinder is bolted to the flange, and the lower fixed cylinder is provided with an accommodating groove, and the accommodating groove is used to accommodate dry sand and the upper movable cylinder; the upper movable cylinder is slidingly connected to the lower fixed cylinder, and the upper movable cylinder is used to support large-span components; dry sand is arranged between the upper movable cylinder and the bottom wall of the lower fixed cylinder, and the side wall of the lower fixed cylinder is provided with a sand outlet; the sealing assembly includes a sealing nut and a sealing bolt, the sealing nut is welded and fixed to the side wall of the lower fixed cylinder, the sealing bolt is threadedly connected to the sealing nut, and the sealing bolt is used to seal the sand outlet.

[0010] By adopting the above technical solution, when the installation of the long-span structure is completed, the long-span structure needs to be unloaded, so that the long-span structure is transformed from a supporting system to a self-supporting system. When the long-span structure is unloaded, the staff separates the blocking bolts from the blocking nuts, allowing the dry sand in the accommodating groove to flow out from the sand outlet, thereby lowering the elevation of the upper movable cylinder, so that the upper movable cylinder is separated from the long-span component; thereby reducing the supporting effect of the temporary support structure on the long-span component, and the long-span structure gradually bears the load by itself. This application unloads the long-span structure through the sand box support, thereby facilitating the operation of the staff and improving construction efficiency.

[0011] Optionally, a spoiler assembly is further included, which includes a spoiler plate, a spoiler rib and a handle; a spoiler flow hole is opened on the side wall of the lower fixed cylinder, the spoiler plate is passed through the spoiler flow hole, the spoiler rib is fixedly connected to the spoiler plate, the spoiler rib is arranged in the accommodating groove, the handle is fixedly connected to the spoiler plate, and the handle is arranged on the outside of the lower fixed cylinder.

[0012] By adopting the above technical solution, workers can use the linear reciprocating motion of the spoiler to make the spoiler ridges vibrate back and forth to accommodate the dry sand in the groove, so that the dry sand in the groove can flow out from the sand outlet, making it easier for workers to unload large-span structures and improving construction efficiency.

[0013] Optionally, the turbulent flow hole is arranged on a side of the sand outlet away from the upper movable cylinder.

[0014] By adopting the above technical solution, the turbulent flow holes and the turbulent flow components are arranged at the bottom of the sand outlet, so that dry sand can flow out of the sand outlet.

[0015] Optionally, the spoiler assembly further includes a plurality of spoiler rods, which are vertically arranged, fixedly connected to the spoiler plate, and arranged in the accommodating groove.

[0016] By adopting the above technical solution and arranging a spoiler rod on the spoiler plate, the spoiling range of the spoiler assembly is increased, thereby further improving the sand discharge efficiency of dry sand.

[0017] Optionally, the spoiler assembly further includes a sealing strip, which is disposed in the accommodating groove, is bonded and fixed to the side wall of the lower fixed cylinder, is disposed around the spoiler flow hole, and abuts against the spoiler.

[0018] By adopting the above technical solution, a sealing strip is provided between the lower fixed cylinder and the spoiler to seal the gap between the side wall of the lower fixed cylinder and the spoiler; thereby, when the temporary support structure supports the large-span component, the risk of dry sand leaking through the gap between the spoiler and the lower fixed cylinder can be reduced, thereby ensuring the supporting effect of the temporary support structure on the large-span component.

[0019] Optionally, a leveling assembly is also included, which includes a gasket steel plate and a steel wedge. The gasket steel plate and the steel wedge fill the gap between the steel pipe column and the support body. The leveling assembly is used to level the steel pipe column.

[0020] By adopting the above technical solution, when the surface of the support body is uneven, the steel pipe column is leveled using the leveling assembly, so that the temporary support structure is set vertically, thereby improving the stability of the temporary support structure.

[0021] Optionally, a guy rope is further included, and a connecting ear plate is provided on the steel pipe column, and the guy rope is fixed to the connecting ear plate.

[0022] By adopting the above technical solution, wind ropes are installed on the steel pipe columns to reduce the disturbance of wind load on the temporary supporting structure.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Adjacent steel pipe sections, as well as steel pipe sections and sandbox supports, are connected by bolts, and the bottom of the steel pipe column is connected to the support body by anchor bolts and nuts, making it easier for workers to install and dismantle the temporary support structure and improving the installation efficiency of long-span components. Furthermore, by setting up sandbox supports between the steel pipe column and the long-span components, the height of the temporary support structure can be flexibly adjusted by using the filling height of dry sand in the sandbox, ensuring that the temporary support structure has a good supporting effect on the long-span components.

[0025] 2. The workers can use the linear reciprocating motion of the spoiler to make the spoiler ribs vibrate back and forth to accommodate the dry sand in the groove, so that the dry sand in the groove can flow out from the sand outlet, making it easier for workers to unload the large-span structure and improving construction efficiency;

[0026] 3. When the surface of the support body is uneven, use the leveling assembly to level the steel pipe column so that the temporary support structure is set vertically to improve the stability of the temporary support structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the temporary support structure in Example 1.

[0028] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0029] Figure 3 It is a schematic diagram showing the connection relationship between the temporary support structure and the steel truss beam in Example 1.

[0030] Figure 4 It is a structural diagram of the sandbox support in Example 1.

[0031] Figure 5 It is a structural diagram of the sandbox support in Example 2.

[0032] Explanation of reference numerals: 1. long-span structure; 11. box-type steel column; 12. steel truss; 2. raft; 21. anchor bolt; 3. steel pipe column; 31. steel pipe section; 311. pipe body; 312. flange; 32. connecting ear plate; 4. leveling assembly; 41. gasket steel plate; 42. steel wedge; 5. guy rope; 6. sandbox support; 61. lower fixed cylinder; 611. cylinder bottom wall; 612. cylinder side Wall; 613, sand outlet; 614, spoiler flow hole; 62, upper movable cylinder; 621, first support plate; 622, web; 623, second support plate; 63, blocking assembly; 631, blocking nut; 632, blocking bolt; 64, accommodating groove; 7, dry sand; 8, spoiler assembly; 81, spoiler; 82, spoiler ridge; 83, spoiler rod; 84, handle; 85, sealing strip. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1 -5 Provide further details on this application.

[0034] Example 1

[0035] The embodiment of the present application discloses a temporary support structure for the installation of a large-span steel structure. Figure 1 The temporary support structure is used to temporarily support the long-span structure 1. The long-span structure 1 includes a support member and a long-span member. The support member is fixedly mounted on the supporting body (raft 2, floor slab, etc.), with two support members spaced apart. The long-span member is fixedly mounted between the two supporting members. In this embodiment, the supporting body is the raft 2, the support member is a box-type steel column 11, and the long-span member is a steel truss 12. The steel truss 12 is constructed using a temporary support high-altitude in-situ assembly method; that is, workers hoist the steel truss 12 into the air in sections, and then assemble the multiple sections of steel truss 12 into a single piece in the air, thereby completing the installation of the long-span structure 1.

[0036] Reference Figure 1 A temporary support structure is provided between the raft 2 and the steel trusses 12. Several temporary support structures are spaced along the length of the steel trusses 12 to temporarily support the steel trusses 12 and complete the mid-air assembly of the steel trusses 12. Anchor bolts 21 are pre-embedded in the support to secure the temporary support structure.

[0037] Reference Figures 1 to 3 The temporary supporting structure includes a steel pipe column 3, a leveling component 4, a guy rope 5 and a sandbox support 6.

[0038] Reference Figure 1 and Figure 2 The bottom end of the steel pipe column 3 is fixedly connected to the support body. The steel pipe column 3 is composed of several steel pipe sections 31. The steel pipe section 31 includes a pipe body 311 and flanges 312 fixed on both sides of the pipe body 311. Adjacent steel pipe sections 31 are bolted together by the flanges 312; the flange 312 at the bottom of the steel pipe column 3 is fixedly connected to the raft 2 by anchor bolts 21.

[0039] Reference Figure 1 and Figure 2 When the raft 2 surface is uneven and has concave areas, the adjustment assembly fills the gap between the raft 2 and the steel pipe column 3. The leveling assembly 4 includes a shim steel plate 41 and a steel wedge 42. The shim steel plate 41 and the steel wedge 42 fill the gap between the steel pipe column 3 and the raft 2. The leveling assembly 4 is used to level the steel pipe column 3, thereby vertically arranging the steel pipe column 3 to improve the stability of the temporary support structure.

[0040] Reference Figure 1At the same time, a connecting ear plate 32 is provided on the steel pipe column 3, one end of the cable rope 5 is fixed to the connecting ear plate 32, and the other end of the cable rope 5 is fixedly connected to the raft 2 and other structures of the building; the position of the steel pipe column 3 is fixed by the cable rope 5 to reduce the disturbance of the wind load to the temporary support structure.

[0041] Reference Figure 3 and Figure 4 The top of the steel pipe column 3 is fixedly connected to the sandbox support 6, which is used to support large-span components. The sandbox support 6 includes a lower fixed cylinder 61, an upper movable cylinder 62 and a blocking component 63.

[0042] Reference Figure 3 and Figure 4 The lower fixed cylinder 61 includes a welded bottom wall 611 and side walls 612. The bottom wall 611 of the lower fixed cylinder 61 is bolted to the flange 312 on the steel pipe section 31. The bottom wall 611 and side walls 612 define a receiving groove 64 for accommodating the dry sand 7 and the upper movable cylinder 62. The upper movable cylinder 62 is slidably connected to the lower fixed cylinder 61 and is used to support the steel truss 12. The upper movable cylinder 62 includes two opposing first and second support plates 621 and 623, and a plurality of webs 622 disposed between the first and second support plates 621 and 623. The first support plate 621 is disposed in the receiving groove 64 for contacting the dry sand 7. The second support plate 623 contacts the steel truss 12.

[0043] Reference Figure 4 The dry sand 7 is arranged between the upper movable cylinder 62 and the bottom wall 611 of the lower fixed cylinder 61, and a sand outlet 613 is opened on the side wall 612 of the lower fixed cylinder 61; the blocking assembly 63 includes a blocking nut 631 and a blocking bolt 632, the blocking nut 631 is welded and fixed to the side wall 612 of the lower fixed cylinder 61, and the blocking bolt 632 is threadedly connected to the blocking nut 631, and the blocking bolt 632 is used to block the sand outlet 613.

[0044] The implementation principle of a temporary support structure for installing a large-span steel structure in the embodiment of the present application is as follows:

[0045] Reference Figures 1 to 4 Adjacent steel pipe sections 31 and steel pipe sections 31 and sand box supports 6 are connected by bolts, and the bottom of the steel pipe column 3 is also connected to the support body by anchor bolts 21 and nuts, which makes it convenient for workers to install and dismantle the temporary support structure and improve the installation efficiency of large-span components; and by arranging the sand box support 6 between the steel pipe column 3 and the large-span components, the filling height of the dry sand 7 in the sand box can be used to flexibly adjust the elevation of the temporary support structure, so that the temporary support structure has a good supporting effect on the large-span components.

[0046] When the long-span structure 1 is installed, it needs to be unloaded so that the long-span structure 1 is transformed from a supporting system to a self-supporting system. In this embodiment, the unloading of the long-span structure 1 is achieved through the sandbox support 6.

[0047] When the long-span structure 1 is unloaded, the worker separates the blocking bolts 632 from the blocking nuts 631, allowing some of the dry sand 7 in the receiving groove 64 to flow out of the sand outlet 613, thereby lowering the elevation of the upper movable cylinder 62 and separating it from the long-span member. This reduces the support effect of the temporary support structure on the long-span member, allowing the long-span structure 1 to gradually bear the load itself. The present application utilizes the sandbox support 6 to unload the long-span structure 1, making it easier for workers to operate and improving construction efficiency.

[0048] In this embodiment, before the steel truss 12 is unloaded, the unloading scheme is simulated and calculated through numerical simulation; then, the steel truss is gradually unloaded from the middle to both ends, unloading 10 mm each time (the height of the sandbox support 6 is lowered 10 mm each time), and after each unloading, the welds and deformation of the steel truss are observed for half an hour to check. If the welds are torn or partially deformed, unloading is stopped to check the cause.

[0049] Example 2

[0050] The difference between this embodiment 2 and embodiment 1 is that:

[0051] Reference Figure 5 The temporary supporting structure also includes a spoiler assembly 8 , which also includes a spoiler plate 81 , a spoiler ridge 82 , a spoiler rod 83 , a handle 84 and a sealing strip 85 .

[0052] Reference Figure 5 The sidewall 612 of the lower fixed cylinder 61 is provided with a flow-turbulating hole 614. The spoiler 81 is provided with the flow-turbulating hole 614. The flow-turbulating ridge 82 is fixedly connected to the spoiler 81 and disposed in the receiving groove 64. The handle 84 is fixedly connected to the spoiler 81 and disposed on the outside of the lower fixed cylinder 61. In this embodiment, the flow-turbulating hole 614 is disposed on the side of the sand outlet 613 away from the upper movable cylinder 62. A plurality of spoiler rods 83 are provided. The spoiler rods 83 are vertically arranged and fixedly connected to the spoiler 81 and disposed in the receiving groove 64. A sealing strip 85 is disposed in the receiving groove 64. The sealing strip 85 is adhesively fixed to the sidewall 612 of the lower fixed cylinder. The sealing strip 85 is disposed around the flow-turbulating hole 614 and abuts against the spoiler 81.

[0053] After the spoiler 81 is provided with the spoiler flow hole 614, the staff welds the spoiler convex strip 82, the handle 84 and the spoiler 81. Subsequently, the staff adheres the sealing strip 85 on the cylinder side wall 612 of the lower fixed cylinder.

[0054] The implementation principle of a temporary support structure for installing a large-span steel structure in the embodiment of the present application is as follows:

[0055] Reference Figure 5 The workers can use the linear reciprocating motion of the spoiler plate 81 to make the spoiler ridge 82 vibrate back and forth to accommodate the dry sand 7 in the groove 64, so that the dry sand 7 in the groove 64 can flow out from the sand outlet 613; and the spoiler rod 83 can increase the spoiling range of the spoiler assembly 8 to further improve the sand discharge efficiency of the dry sand 7; thereby facilitating the workers to unload the large-span structure 1 and improving construction efficiency.

[0056] In addition, a sealing strip 85 is provided between the lower fixed cylinder 61 and the spoiler 81 to seal the gap between the side wall 612 of the lower fixed cylinder 61 and the spoiler 81; thereby, when the temporary support structure supports a large-span component, the risk of dry sand 7 leaking through the gap between the spoiler 81 and the lower fixed cylinder 61 can be reduced, thereby ensuring the supporting effect of the temporary support structure on the large-span component.

[0057] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A temporary support structure for the installation of a large-span steel structure, characterized by: A temporary support structure is arranged between a support body and a truss. The temporary support structure is used to temporarily support a large-span component. The temporary support structure comprises a steel pipe column (3) and a sandbox support (6). The bottom end of the steel pipe column (3) is fixedly connected to the support body, and the top end of the steel pipe column (3) is fixedly connected to the sandbox support (6). The sandbox support (6) is used to support the large-span component. The steel pipe column (3) is formed by connecting a plurality of steel pipe sections (31). The steel pipe section (31) comprises a pipe body (311) and flanges (312) fixedly arranged on both sides of the pipe body (311). Adjacent steel pipe sections (31) are bolted together via the flanges (312). Anchor bolts (21) are pre-buried in the support body. The bottom of the steel pipe column (3) is fixedly connected to the support body via the anchor bolts (21).

2. The temporary support structure for installing a large-span steel structure according to claim 1, characterized in that: The sandbox support (6) includes a lower fixed cylinder (61), an upper movable cylinder (62) and a blocking assembly (63); the lower fixed cylinder (61) is bolted to the flange (312), and the lower fixed cylinder (61) is provided with a receiving groove (64), and the receiving groove (64) is used to receive dry sand (7) and the upper movable cylinder (62); the upper movable cylinder (62) is slidably connected to the lower fixed cylinder (61), and the upper movable cylinder (62) is used to support a large-span component; the dry sand (7) is arranged on the upper movable cylinder. A sand outlet (613) is provided on the side wall (612) of the lower fixed cylinder (61) between the cylinder (62) and the bottom wall (611) of the lower fixed cylinder (61); the blocking assembly (63) comprises a blocking nut (631) and a blocking bolt (632); the blocking nut (631) is welded and fixed to the side wall (612) of the lower fixed cylinder (61); the blocking bolt (632) is threadedly connected to the blocking nut (631); and the blocking bolt (632) is used to block the sand outlet (613).

3. The temporary support structure for installing a large-span steel structure according to claim 2, characterized in that: The invention also includes a spoiler assembly (8), wherein the spoiler assembly (8) further includes a spoiler plate (81), a spoiler rib (82) and a handle (84); a spoiler flow hole (614) is provided on the side wall (612) of the lower fixed cylinder (61); the spoiler plate (81) is passed through the spoiler flow hole (614); the spoiler rib (82) is fixedly connected to the spoiler plate (81); the spoiler rib (82) is arranged in the accommodating groove (64); the handle (84) is fixedly connected to the spoiler plate (81); and the handle (84) is arranged on the outside of the lower fixed cylinder (61).

4. The temporary support structure for installing a large-span steel structure according to claim 3, characterized in that: The turbulent flow hole (614) is arranged on a side of the sand outlet (613) away from the upper movable cylinder (62).

5. The temporary support structure for installing a large-span steel structure according to claim 3, characterized in that: The spoiler assembly (8) further comprises a plurality of spoiler rods (83), wherein the spoiler rods (83) are arranged vertically, the spoiler rods (83) are fixedly connected to the spoiler plate (81), and the spoiler rods (83) are arranged in the accommodating groove (64).

6. The temporary support structure for installing a large-span steel structure according to claim 3, characterized in that: The spoiler assembly (8) further includes a sealing strip (85), the sealing strip (85) being disposed in the accommodating groove (64), the sealing strip (85) being bonded and fixed to the side wall (612) of the lower fixed cylinder, the sealing strip (85) being disposed around the spoiler flow hole (614), and the sealing strip (85) being in contact with the spoiler plate (81).

7. The temporary support structure for installing a large-span steel structure according to claim 1, characterized in that: It also includes a leveling assembly (4), the leveling assembly (4) including a gasket steel plate (41) and a steel wedge (42), the gasket steel plate (41) and the steel wedge (42) filling the gap between the steel pipe column (3) and the support body, and the leveling assembly (4) is used to level the steel pipe column (3).

8. The temporary support structure for installing a large-span steel structure according to claim 1, characterized in that: It also includes a guy rope (5), a connecting lug plate (32) is provided on the steel pipe column (3), and the guy rope (5) is fixed to the connecting lug plate (32).

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