A steel net temporary support structure

Abstract

The utility model provides a kind of steel net temporary support structure, belong to building construction technical field, the steel net temporary support structure includes adjustable support column, steel pipe, cross connection node, locking assembly and adjustable foot pad, multiple steel pipes are connected head-to-tail axially by cross connection node, the lowermost steel pipe is detachably connected with the upper end of adjustable support column by cross connection node, the lower end of adjustable support column is fixed with adjustable foot pad, locking assembly for height limit is arranged on adjustable support column, locking assembly includes multiple U type bolt and corresponding nut, adjustable foot pad includes a base plate and the threaded rod extending upwards from the center of base plate, threaded rod passes through the threaded hole of adjustable support column lower end and is screw-threaded with it, the lower surface of base plate has the material layer of elastically deformable, to accommodate uneven ground;The utility model can solve the problem of temporary support stable adjustment difficulty in the construction process of steel net.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and specifically relates to a temporary support structure for steel space frame. Background Technology

[0002] Temporary support structures for steel space frames are removable and reusable support systems temporarily erected during the hoisting, assembly, or construction of large-span steel space frames, steel trusses, arched steel structures, etc., to ensure the stability, safety, and construction accuracy of the structure before it forms a complete load-bearing system. With the rapid urbanization and scarcity of land resources in my country, large-span, large-space, and irregularly shaped steel structures such as airports, high-speed rail stations, stadiums, and convention centers have become the mainstream choice for urban landmark construction. These structures are often characterized by large spans, complex nodes, and high construction difficulty. During the installation process, the steel space frame has not yet formed a stable spatial structure. Each member and each node needs reliable support to bear its own weight and the construction loads generated by workers walking on it, hoisting equipment, and stacking materials before welding or connection is completed. Without temporary support, these loads may cause members to bend, nodes to deform, or even the entire structure to collapse. Utility Model Content

[0003] In view of this, the present invention provides a temporary support structure for steel space frames, which can solve the problem of difficulty in adjusting the stability of temporary supports during the construction of steel space frames.

[0004] This utility model is implemented as follows: This utility model provides a temporary support structure for a steel space frame, including an adjustable support column, steel pipes, a cross-shaped connecting node, a locking assembly, and adjustable foot pads. Multiple steel pipes are axially connected end-to-end through the cross-shaped connecting node. The lowest steel pipe is detachably connected to the upper end of the adjustable support column through the cross-shaped connecting node. An adjustable foot pad is fixed to the lower end of the adjustable support column. A locking assembly for height limitation is provided on the adjustable support column. The locking assembly includes multiple U-bolts and corresponding nuts. The adjustable foot pad includes a base and a threaded rod extending upward from the center of the base. The threaded rod passes through a threaded hole at the lower end of the adjustable support column and is threadedly connected to it. The lower surface of the base has an elastic and deformable material layer to adapt to uneven ground.

[0005] The technical advantages of the temporary support structure for steel space frame provided by this utility model are as follows: 1. Multiple steel pipes are axially connected end-to-end through cross-shaped connection nodes to form a modular and expandable space frame structure, which facilitates quick assembly and disassembly. The bottom steel pipe is detachably connected to the adjustable support column, allowing the entire support system to be adjusted in height as a whole, and facilitating transportation and storage.

[0006] 2. Using U-bolts and nuts as locking components, the structure is simple, low-cost, easy to process and manufacture, and has a good fastening effect, which can reliably limit the height of the adjustable support column and prevent accidental slippage.

[0007] 3. A threaded rod extending upwards from the center of the chassis passes through a threaded hole at the lower end of the support column and is threaded together. This allows for precise, stepless adjustment of the foot pad height, enabling fine-tuning of the overall height of the support column to handle more complex ground conditions and support precision requirements. The elastic layer effectively fills the tiny gaps between the ground and the foot pad, ensuring full contact between the foot pad and the ground. Even with minor unevenness in the ground, it provides stable support, avoiding uneven stress or the risk of overturning due to localized suspension.

[0008] Based on the above technical solution, the temporary support structure for steel space frame of this utility model can be further improved as follows: The adjustable support column includes an inner column and an outer column. The outer column is sleeved on the outside of the inner column and is slidably connected to the inner column. Both the inner and outer columns are provided with through holes located on the central axis of the inner and outer columns. The span of the U-bolt is the same as the radius of the outer column. The U-bolt passes through the through holes on both the inner and outer columns. Nuts are connected to both ends of the U-bolt. Multiple U-bolts are staggered on the adjustable support column to limit the height of the adjustable support column.

[0009] The beneficial effects of the above-mentioned improved design are as follows: The sleeve-type design allows the inner column to slide internally, forming a telescopic structure. This results in a wide range of height adjustment for the support column, enhancing its adaptability and meeting the support requirements of different heights. Through holes are provided on both the inner and outer columns, located on the central axis. This ensures that the U-bolts can centrally fix the inner and outer columns when passing through, avoiding eccentric forces and improving the stability and load-bearing capacity of the structure. The U-bolts can perfectly cross the outer column and simultaneously penetrate the through holes of both the inner and outer columns, achieving a stable connection with a compact structure, avoiding material waste. Multiple U-bolts are staggered; even if one U-bolt fails or is damaged, the others can continue to provide support, increasing the safety and reliability of the structure.

[0010] Furthermore, the cross-shaped connection node includes a central sleeve and four radially extending connecting arms. The diameter of the inner column is the same as the diameter of the steel pipe, and the inner diameter of the connecting arms of the cross-shaped connection node is adapted to the outer diameter of the steel pipe.

[0011] The beneficial effects of adopting the above-mentioned improved scheme are as follows: precise fitting dimensions ensure that the connection is tight and free of wobbling after the steel pipe is inserted into the connecting arm, effectively transferring loads and improving the rigidity of the connection point and the stability of the overall structure. This tight fit also reduces wear at the connection point and extends its service life.

[0012] Furthermore, the adjustable footpad's elastic deformable material layer is made of rubber and polyurethane, with a thickness between 5mm and 20mm and a Shore hardness range of 50-80.

[0013] The beneficial effects of adopting the above-mentioned improved scheme are as follows: rubber has good elasticity, wear resistance, and shock absorption, while polyurethane has high strength, high toughness, and oil resistance. Combining the two leverages their respective advantages, achieving an optimal balance in terms of pressure resistance, adaptability to uneven surfaces, shock absorption, and durability. A Shore hardness range of 50-80 ensures that the elastic layer has sufficient flexibility to adapt to the ground surface while also possessing sufficient supporting rigidity to prevent it from sinking under excessive force.

[0014] Furthermore, the cross-shaped connection node is equipped with reinforcing ribs at the connection between each connecting arm and the central sleeve to distribute the connection stress and improve the overall strength and bending resistance of the node.

[0015] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the connection between the connecting arm and the central sleeve is the area where the stress is most concentrated in the entire node, and it is also the part most prone to stress concentration. Setting a reinforcing rib can distribute the load and stress transmitted to the connection point more evenly over a larger area, avoiding excessive local stress that could lead to material fatigue or damage.

[0016] Furthermore, the connecting arm of the cross-shaped connector has a drainage hole inside to drain accumulated water.

[0017] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: Since the support structure is often used outdoors, rainwater, snowmelt, or dew may enter the connecting arm. Without drainage holes, water will accumulate inside, causing the internal metal components to be in a damp environment for a long time, accelerating corrosion and shortening the service life of the components. The drainage holes effectively eliminate water accumulation and extend the service life of the joint.

[0018] Furthermore, the cross-shaped connecting node is equipped with an integrated handle or lifting ring on the outside, which facilitates handling and hoisting during high-altitude operations.

[0019] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the one-piece molded handle or lifting ring allows workers to easily grasp and carry heavy connecting nodes, especially in areas with short manual carrying distances or narrow spaces, thereby improving carrying efficiency and safety and reducing the risk of hand fatigue and accidental injury.

[0020] Furthermore, the diameter of the drain hole is 15mm, and the spacing between the holes is 80mm.

[0021] Furthermore, the cross-section of the connecting arm is a tapered, gradually changing cross-section, with the diameter of the cross-section decreasing as it gets closer to the central sleeve.

[0022] Furthermore, the central sleeve of the cross-shaped connecting node or the connection point with the connecting arm is provided with a stop structure to limit the insertion depth of the steel pipe, so as to ensure that the insertion depth of the steel pipe is consistent and improve the connection stability.

[0023] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the stop structure ensures that all steel pipes are inserted to the same depth, thereby guaranteeing the consistency of the space frame unit dimensions and avoiding structural deformation or local stress concentration caused by inconsistent insertion depths. During installation, workers do not need to perform additional measurements or rely on experience to judge the insertion depth; they only need to insert the steel pipe until it contacts the stop structure, greatly simplifying the installation process, reducing the skill requirements for workers, and improving installation efficiency.

[0024] Compared with the prior art, the beneficial effects of the temporary support structure for steel space frame provided by this utility model are: 1. Multiple steel pipes are axially connected end-to-end through cross-shaped connection nodes to form a modular and expandable space frame structure, facilitating rapid assembly and disassembly. The bottom steel pipe is detachably connected to adjustable support columns, allowing the entire support system to be adjusted in height as a whole, and facilitating transportation and storage.

[0025] 2. Using U-bolts and nuts as locking components, the structure is simple, low-cost, easy to process and manufacture, and has a good fastening effect, which can reliably limit the height of the adjustable support column and prevent accidental slippage.

[0026] 3. A threaded rod extending upwards from the center of the chassis passes through a threaded hole at the lower end of the support column and is threaded together. This allows for precise, stepless adjustment of the foot pad height, enabling fine-tuning of the overall height of the support column to handle more complex ground conditions and support precision requirements. The elastic layer effectively fills the tiny gaps between the ground and the foot pad, ensuring full contact between the foot pad and the ground. Even with minor unevenness in the ground, it provides stable support, avoiding uneven stress or the risk of overturning due to localized suspension. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of a temporary support structure for a steel space frame; Figure 2 This is a schematic diagram of the internal structure of a temporary support structure for a steel space frame. The attached diagram lists the components represented by each number as follows: 10. Adjustable support column; 11. Inner column; 12. Outer column; 20. Steel pipe; 30. Cross-shaped connection node; 40. Locking assembly; 50. Adjustable foot pad. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0030] like Figure 1-2 The diagram illustrates an embodiment of a temporary support structure for a steel space frame provided by this utility model. This embodiment includes an adjustable support column 10, steel pipes 20, a cross-shaped connecting node 30, a locking assembly 40, and adjustable foot pads 50. Multiple steel pipes 20 are axially connected end-to-end via the cross-shaped connecting node 30. The lowest steel pipe 20 is detachably connected to the upper end of the adjustable support column 10 via the cross-shaped connecting node 30. An adjustable foot pad 50 is fixed to the lower end of the adjustable support column 10. A locking assembly 40 for height limitation is provided on the adjustable support column 10. The locking assembly 40 includes multiple U-bolts and corresponding nuts. The adjustable foot pad 50 includes a base and a threaded rod extending upward from the center of the base. The threaded rod passes through a threaded hole at the lower end of the adjustable support column 10 and is threadedly connected to it. The lower surface of the base has an elastically deformable material layer to adapt to uneven ground.

[0031] In the above technical solution, the adjustable support column 10 includes an inner column 11 and an outer column 12. The outer column 12 is sleeved on the outside of the inner column 11 and slidably connected to the inner column 11. Both the inner column 11 and the outer column 12 are provided with through holes, which are located on the central axis of the inner column 11 and the outer column 12. The span of the U-bolt is the same as the radius of the outer column 12. The U-bolt passes through the through holes on both the inner column 11 and the outer column 12. Nuts are connected to both ends of the U-bolt. Multiple U-bolts are staggered on the adjustable support column 10 to limit the height of the adjustable support column 10.

[0032] Furthermore, in the above technical solution, the cross-shaped connecting node 30 includes a central sleeve and four radially extending connecting arms. The diameter of the inner column 11 is the same as the diameter of the steel pipe 20, and the inner diameter of the connecting arm of the cross-shaped connecting node 30 is adapted to the outer diameter of the steel pipe 20.

[0033] Furthermore, in the above technical solution, the elastic deformable material layer of the adjustable foot pad 50 is made of rubber and polyurethane, with a thickness between 5mm and 20mm and a Shore hardness range of 50-80.

[0034] Furthermore, in the above technical solution, the cross-shaped connection node 30 is provided with a reinforcing rib at the connection between each connecting arm and the central sleeve to disperse the connection stress and improve the overall strength and bending resistance of the node.

[0035] Furthermore, in the above technical solution, the connecting arm of the cross-shaped connecting node 30 is provided with a drainage hole for draining accumulated water.

[0036] Furthermore, in the above technical solution, the cross-shaped connecting node 30 is provided with an integrally formed handle or lifting ring on the outside, which facilitates handling and hoisting during high-altitude operations.

[0037] Furthermore, in the above technical solution, the diameter of the drainage hole is 15mm, and the spacing between the holes is 80mm.

[0038] Furthermore, in the above technical solution, the cross-section of the connecting arm is a tapered gradually changing cross-section, and the diameter of the cross-section is smaller the closer it is to the central sleeve.

[0039] Furthermore, in the above technical solution, the central sleeve of the cross-shaped connecting node 30 or the connection with the connecting arm is provided with a stop structure to limit the insertion depth of the steel pipe 20, so as to ensure that the insertion depth of the steel pipe is consistent and improve the connection stability.

[0040] In use, screw the threaded rod of the adjustable foot pad into the threaded hole at the lower end of the adjustable support column (outer column). The screwing depth can be adjusted according to the initial estimated height. Roughly adjust the relative positions of the inner and outer columns according to the initial height required for support. Pass the U-bolts through the corresponding through holes on the inner and outer columns and tighten them with nuts to initially fix the height of the support column. Repeat this step to assemble all support columns. Insert the steel pipes into the connecting arms of the cross-shaped connection node, ensuring the insertion depth reaches the stop structure to guarantee the stability of the connection. Connect multiple steel pipes end to end axially through the connection node to form a support rod of the required length. After the support structure is erected and leveled, slowly hoist or move the steel space frame structure above the support structure.

[0041] Specifically, the principle of this utility model is as follows: axial connection of steel pipes and cross-shaped connecting nodes enables rapid assembly and flexible combination; locking components of U-bolts and threaded mechanisms of adjustable foot pads provide multi-level precise height adjustment; simultaneously, the elastic material layer at the bottom of the foot pads effectively adapts to uneven ground, ensuring structural stability; and detailed designs such as reinforcing ribs, drainage holes, stop structures, and handles / lifting rings further enhance the strength, durability, and ease of construction of the structure, enabling it to provide reliable temporary support for steel space frame construction safely and quickly.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A temporary support structure for a steel space frame, comprising an adjustable support column, steel pipes, a cross-shaped connecting node, a locking assembly, and adjustable foot pads, wherein multiple steel pipes are axially connected end-to-end through the cross-shaped connecting node, the lowest steel pipe is detachably connected to the upper end of the adjustable support column through the cross-shaped connecting node, the lower end of the adjustable support column is fixed with an adjustable foot pad, and the adjustable support column is provided with a locking assembly for height limitation, characterized in that... The locking assembly includes multiple U-bolts and corresponding nuts. The adjustable foot pad includes a chassis and a threaded rod extending upward from the center of the chassis. The threaded rod passes through and is threadedly connected to a threaded hole at the lower end of the adjustable support column. The lower surface of the chassis has a layer of elastically deformable material to adapt to uneven ground.

2. The temporary support structure for a steel space frame according to claim 1, characterized in that, The adjustable support column includes an inner column and an outer column. The outer column is sleeved on the outside of the inner column and is slidably connected to the inner column. Both the inner and outer columns are provided with through holes, which are located on the central axis of the inner and outer columns. The span of the U-bolt is the same as the radius of the outer column. The U-bolt passes through the through holes on both the inner and outer columns. Nuts are connected to both ends of the U-bolt. Multiple U-bolts are staggered on the adjustable support column to limit the height of the adjustable support column.

3. A temporary support structure for a steel space frame according to claim 2, characterized in that, The cross-shaped connection node includes a central sleeve and four radially extending connecting arms. The diameter of the inner column is the same as the diameter of the steel pipe, and the inner diameter of the connecting arms of the cross-shaped connection node is adapted to the outer diameter of the steel pipe.

4. A temporary support structure for a steel space frame according to claim 3, characterized in that, The adjustable footpad features a flexible, deformable material layer made of rubber and polyurethane, with a thickness ranging from 5mm to 20mm and a Shore hardness range of 50-80.

5. A temporary support structure for a steel space frame according to claim 4, characterized in that, The cross-shaped connection node is equipped with reinforcing ribs at the connection between each connecting arm and the central sleeve to distribute the connection stress and improve the overall strength and bending resistance of the node.

6. A temporary support structure for a steel space frame according to claim 5, characterized in that, The connecting arm of the cross-shaped connector has a drainage hole inside for draining accumulated water.

7. A temporary support structure for a steel space frame according to claim 6, characterized in that, The cross-shaped connecting node has an integrated handle or lifting ring on the outside, which facilitates handling and hoisting during high-altitude operations.

8. A temporary support structure for a steel space frame according to claim 7, characterized in that, The diameter of the drain hole is 15mm, and the spacing between the holes is 80mm.

9. A temporary support structure for a steel space frame according to claim 8, characterized in that, The connecting arm has a tapered, gradually changing cross section, with the diameter decreasing as it gets closer to the central sleeve.

10. A temporary support structure for a steel space frame according to claim 9, characterized in that, Inside the central sleeve of the cross-shaped connection node or at the connection point with the connecting arm, there is a stop structure to limit the insertion depth of the steel pipe, so as to ensure that the insertion depth of the steel pipe is consistent and improve the connection stability.

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