Self-leveling universal support for temporary supporting of large-span steel structure and construction method of self-leveling universal support

Abstract

The invention relates to the technical field of steel structure supporting, and discloses a self-leveling universal support for large-span steel structure temporary supporting and a construction method thereof.The self-leveling universal support comprises a mounting base, a shockproof and antiskid mechanism, a reinforcing lifting mechanism, a fixing mechanism and a stable placement mechanism, and a self-leveling supporting mechanism is arranged on the mounting base. According to the self-leveling universal support for temporary supporting of the large-span steel structure and the construction method of the self-leveling universal support, through the arrangement of the self-leveling supporting mechanism, a first electric push rod can be controlled to stretch out and draw back in a first mounting groove according to the actual state of the steel structure, meanwhile, a supporting plate can freely rotate and slightly move in the horizontal direction through a spherical hinge connecting structure of a ball head and a ball socket, and the self-leveling supporting mechanism is arranged; the jackscrew can be screwed into the connecting block to abut against the surface of the ball head during installation and debugging, the ball head is fixed and limited to a certain degree, the supporting requirements under different working conditions are met, in this way, the situation that additional stress is generated due to the fact that the interior of the structure cannot adapt to deformation is avoided, and installation precision and safety are improved.

Description

Technical Field

[0001] This invention relates to the field of steel structure support technology, specifically to a self-leveling universal support for temporary support of large-span steel structures and its construction method. Background Technology

[0002] Large-span steel structures refer to steel structure buildings or structural systems with large spans. They are commonly used in large public buildings, industrial buildings, and bridges. During the installation of large-span steel structures, reliable support points are provided for steel structure components to bear the weight of the structure and various loads during construction, ensuring construction safety and structural stability.

[0003] According to patent publication number CN210658714U, a seismic bearing suitable for large-span steel structures is disclosed. It includes a box-shaped structure that can be fixed to a pre-installed steel plate at the top of the large-span steel structure column, a base disposed within the cavity of the box-shaped structure, and a top cover that can be fixed to the end of the large-span steel structure truss. This invention effectively disperses the vertical pressure generated by the large-span steel structure, enhances vertical support, and thus improves seismic resistance.

[0004] While the aforementioned existing technologies can achieve the desired results using their structures, they still suffer from the following drawbacks: In the construction of large-span steel structures, although traditional temporary support devices can effectively distribute vertical loads and enhance structural stability and seismic performance, they still have significant shortcomings. During actual construction, steel structures inevitably experience minor deformations or require local adjustments due to factors such as temperature changes, uneven load distribution, and installation errors. Existing support devices mostly employ vertical rigid support structures, which can only provide vertical bearing capacity in a single direction and cannot adapt to the horizontal displacement and rotation requirements of the steel structure. This limitation easily leads to additional stress within the structure, increasing construction risks and even affecting overall installation accuracy and structural safety, resulting in poor practicality.

[0005] To address the aforementioned issues, a self-leveling universal support for temporary support of large-span steel structures and its construction method are proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a self-leveling universal joint for temporary support of large-span steel structures and its construction method, solving the following technical problems: In the construction practice of large-span steel structures, although traditional temporary support devices can effectively distribute vertical loads and enhance structural stability and seismic performance, they still have significant shortcomings. During actual construction, steel structures inevitably experience minor deformations or require local adjustments due to factors such as temperature changes, uneven load distribution, and installation errors. Existing support devices mostly adopt vertical rigid support structures, which can only provide vertical bearing capacity in a single direction and cannot adapt to the horizontal displacement and rotation requirements of the steel structure. This limitation easily leads to additional stress inside the structure, increases construction risks, and may even affect the overall installation accuracy and structural safety, resulting in poor practicality.

[0007] The objective of this invention can be achieved through the following technical solution: A self-leveling universal support for temporary support of a large-span steel structure, comprising a mounting base, an anti-vibration and anti-slip mechanism, a reinforcement and lifting mechanism, a fixing mechanism, and a stable placement mechanism. The upper end of the mounting base is provided with a self-leveling support mechanism, which includes a first mounting groove formed at the upper end of the mounting base. A first electric push rod is fixedly installed inside the first mounting groove. A lifting plate is fixedly connected to the upper end of the first electric push rod. Multiple fixing seats are fixedly arranged in a circular array at the upper end of the lifting plate. A connecting block is fixedly connected inside the fixing seat. A set screw is provided inside the connecting block. A ball socket is formed inside the connecting block. A ball head is connected to the ball socket by a ball hinge. A support plate is fixedly connected to the upper surface of the ball head.

[0008] As a further aspect of the present invention: the first mounting groove is formed at the upper center of the mounting base, and the set screw is threadedly connected to the connecting block.

[0009] As a further aspect of the present invention: the shockproof and anti-slip mechanism includes a first rubber pad fixedly connected to the upper side of the support plate, and the upper surface of the first rubber pad is provided with a first anti-slip groove.

[0010] As a further aspect of the present invention: the reinforced lifting mechanism includes a plurality of second mounting slots formed at the upper end of the mounting base, and a second electric push rod is fixedly installed inside the second mounting slot, and the second electric push rod is fixedly connected to the lifting plate.

[0011] As a further aspect of the present invention: rubber blocks are fixedly connected around the upper end of the mounting base, and protrusion grooves are formed on the upper surface of the plurality of rubber blocks.

[0012] As a further aspect of the present invention: the fixing mechanism includes slots, which are formed at the four corners of the mounting base, and fixing holes are formed through the interior of the mounting base.

[0013] As a further aspect of the present invention: the stable placement mechanism includes an inlay groove formed on the lower surface of the mounting base, a second rubber pad is fixedly connected inside the inlay groove, and a second anti-slip groove is formed on the lower surface of the second rubber pad.

[0014] As a further aspect of the present invention: the second electric push rod is electrically connected to the first electric push rod.

[0015] This invention also discloses a construction method for a self-leveling universal support for temporary support of large-span steel structures, comprising the following steps: S1. First, pass the external fixing parts (such as bolts) through the slots and fixing holes, and connect the mounting base to the construction site foundation or other fixed structure. S2. When the large-span steel structure undergoes slight deformation or tilting due to temperature changes, uneven load distribution, or installation errors, the first electric push rod in the first installation slot will start working. The first electric push rod will extend or shorten, driving the lifting plate to move up and down to adjust the support height. S3. The ball joint is connected to the ball head through the ball socket, allowing the support plate to rotate and move freely in the horizontal direction. The set screw is threaded to the connecting block and can be tightened during installation and debugging to limit and fix the ball head surface. The second electric push rod in the second mounting slot is electrically connected to the first electric push rod, and the two work together. S4. When it is necessary to adjust the support height or cope with a large load, the first electric push rod and the second electric push rod extend synchronously to provide support force to the lifting plate from different positions of the mounting base. Conversely, they shorten synchronously to reduce the support height.

[0016] The beneficial effects of this invention are: (1) The self-leveling universal support for temporary support of large-span steel structure and its construction method of the present invention, through the setting of the self-leveling support mechanism, can control the extension and retraction of the first electric push rod in the first installation groove according to the actual state of the steel structure. At the same time, the ball joint connection structure of the ball head and the ball socket allows the support plate to rotate freely and make small displacements in the horizontal direction. The top screw can be screwed into the connecting block and pressed against the surface of the ball head during installation and debugging to achieve a certain degree of fixation and limitation of the ball head, so as to meet the support requirements under different working conditions. In this way, the additional stress generated inside the structure due to the inability to adapt to deformation is avoided, and the installation accuracy and safety are improved.

[0017] (2) By setting rubber blocks on the lower surface of the mounting base, the rubber pads have good elasticity and anti-slip properties, increasing the friction between the rubber pads and the ground, making the support more stable and preventing slippage due to uneven ground or external forces during construction, thereby ensuring the stability of the entire support system. By setting second electric push rods at the four corners of the mounting base, the lifting plate is kept horizontal during the lifting process, providing safe and precise support for steel structure installation.

[0018] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the first frontal three-dimensional structure of this application; Figure 2 This is a schematic diagram of the second frontal three-dimensional structure of this application; Figure 3 This is a three-dimensional structural schematic diagram of the first frontal cross-section of this application; Figure 4 This is a three-dimensional structural schematic diagram of the second frontal cross-section of this application.

[0021] In the diagram: 1. Mounting base; 101. First mounting groove; 102. First electric push rod; 103. Lifting plate; 104. Fixed base; 105. Connecting block; 106. Set screw; 107. Ball socket; 108. Ball head; 109. Support plate; 201. First rubber pad; 202. First anti-slip groove; 301. Second mounting groove; 302. Second electric push rod; 401. Rubber block; 402. Extending groove; 501. Opening groove; 502. Fixing hole; 601. Embedding groove; 602. Second rubber pad; 603. Second anti-slip groove. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0024] In the field of steel structure support technology, existing temporary support devices for large-span steel structures mostly adopt vertical rigid support structures, which can only provide vertical bearing capacity in one direction and cannot adapt to the horizontal displacement and rotation requirements of the steel structure. This not only easily leads to additional stress inside the structure, increasing construction risks, but also affects the overall installation accuracy and structural safety, resulting in poor practicality. In view of this, this invention develops a self-leveling universal support for temporary support of large-span steel structures. Through a series of innovative designs, it improves the installation accuracy and safety of large-span steel structures. The specific implementation method is as follows: Example 1: As Figure 1-Figure 4 As shown, a self-leveling universal support for temporary support of a large-span steel structure includes a mounting base 1, an anti-vibration and anti-slip mechanism, a reinforcement and lifting mechanism, a fixing mechanism, and a stable placement mechanism. The upper end of the mounting base 1 is provided with a self-leveling support mechanism, which includes a first mounting groove 101 opened at the upper end of the mounting base 1. A first electric push rod 102 is fixedly installed inside the first mounting groove 101. A lifting plate 103 is fixedly connected to the upper side of the first electric push rod 102. A plurality of fixed seats 104 are fixedly arranged in a circular array at the upper end of the lifting plate 103. The number of fixed seats 104 is 4, and they are arranged in a circular array with the center of the lifting plate 103 as the center. A connecting block 105 is fixedly connected inside the plurality of fixed seats 104. A set screw 106 is provided inside the connecting block 105. A ball socket 107 is opened at the upper end of the connecting block 105. A ball head 108 is connected to the ball socket 107 by a ball hinge. A support plate 109 is fixedly connected to the upper surface of the ball head 108. The first mounting groove 101 is formed inside the mounting base 1. The set screw 106 is threadedly connected to the connecting block 105. When the large-span steel structure undergoes slight deformation or tilting during actual construction, the first electric push rod 102 is controlled to function in the first mounting groove 101. According to the actual state of the steel structure, the first electric push rod 102 is controlled to extend and retract inside the first mounting groove 101. When it is necessary to raise the support height, the first electric push rod 102 extends, pushing the lifting plate 103 to rise; conversely, it descends. At the same time, the ball head 108 and the ball socket 107 are connected by a ball joint structure. This connection method can ensure that the ball head 108 can be connected by a ball joint. 8. The ball head 108 can rotate freely and effectively reduce swaying. It can rotate slightly in three-dimensional space, thereby driving the support plate 109 to rotate freely and move slightly in the horizontal direction. This allows it to adapt to the deformation of the steel structure in different directions. During installation and commissioning, the set screw 106 is screwed into the connecting block 105 and presses against the surface of the ball head 108 to fix and limit the ball head 108 to a certain extent. This meets the support requirements under different working conditions and avoids additional stress caused by the inability of the structure to adapt to deformation. This greatly enhances the safety of the structure and allows the steel structure to maintain a stable and reliable operating state under complex working conditions.

[0025] like Figure 1As shown, in one aspect of this embodiment, during the construction of the steel structure, vibrations and displacements occur due to various construction operations and external forces. The first rubber pad 201 is fixed to the upper side of the support plate 109 and has good elasticity, enabling it to absorb and buffer vibrations. The first anti-slip grooves 202 are evenly distributed in a straight line on the upper surface of the first rubber pad 201, increasing the friction when in contact with the steel structure components, preventing the steel structure from sliding on the support plate 109, and ensuring the stability of the support.

[0026] like Figure 4 As shown, in one aspect of this embodiment, the second electric actuator 302 is installed in the second mounting slot 301 and electrically connected to the first electric actuator 102. When the lifting plate 103 needs to be adjusted in height, the two electric actuators work together. For example, when facing a larger load or requiring a more stable support height, the first electric actuator 102 and the second electric actuator 302 extend simultaneously, providing support force to the lifting plate 103 from different positions. This multi-point support mode effectively disperses the load, significantly enhancing the stability and load-bearing capacity of the entire support structure, providing a solid and reliable support for the upper steel structure, and enhancing the stability and load-bearing capacity of the support structure; conversely, both shorten simultaneously, reducing the support height. The four second electric actuators 302 distributed at the four corners of the mounting base 1 ensure that the lifting plate 103 remains horizontal during the lifting process, avoiding tilting, thereby providing safe and precise support for the steel structure installation operation.

[0027] like Figure 1 As shown, in one aspect of this embodiment, the rubber block 401 on the upper side of the mounting base 1 can, on the one hand, play a certain buffering role, reducing the impact of the support plate 109 on the mounting base 1 and its internal structure. This buffering mechanism not only protects the main structure of the mounting base 1, but also reduces the wear caused by vibration of the electric push rod, ball joint connecting parts, etc., effectively extending the overall service life of the equipment. On the other hand, the protrusion groove 402 on its upper surface allows construction personnel to easily remove small parts scattered on the mounting base 1 during construction, keeping the construction environment clean and preventing parts from entering the support and affecting its normal operation.

[0028] like Figure 1 As shown, in one aspect of this embodiment, during actual construction, it is necessary to fix the support in a specific position. External fixing parts such as bolts pass through the fixing holes 502 via the slot 501 and are connected to the foundation or other fixed structures of the construction site, thereby firmly fixing the mounting base 1 in the required position, ensuring that the support will not shift when supporting the steel structure, ensuring the reliability of the support, and thus ensuring the safety and stability of the entire steel structure project.

[0029] like Figure 2 , Figure 4As shown, in one aspect of this embodiment, the lower part of the second rubber pad 602, which is embedded in the groove 601 on the lower surface of the mounting base 1, protrudes from the groove 601 and contacts the ground. The second rubber pad 602 has good elasticity and anti-slip properties, and the second anti-slip groove 603 further increases the friction between the pad and the ground, making the support more stable when placed and preventing the support from sliding or shifting due to uneven ground or external forces during construction, thus ensuring the stability of the entire support system.

[0030] Example 2: This invention also discloses a construction method for a self-leveling universal support for temporary support of large-span steel structures, including the following steps: S1. During actual construction, first pass the external fixing parts (such as bolts) through the slot 501 and fixing hole 502, and connect the mounting base 1 to the foundation of the construction site or other fixed structure to securely fix the support. S2. When the large-span steel structure undergoes slight deformation or tilting due to temperature changes, uneven load distribution, or installation errors, the first electric push rod 102 in the first mounting groove 101 starts to work. The first electric push rod 102 extends or shortens, driving the lifting plate 103 to move up and down to adjust the support height.

[0031] S3. Simultaneously, the ball joint 107 of the connecting block 105 inside the fixed seat 104 is ball-jointed to the ball head 108, allowing the support plate 109 to rotate and move freely in the horizontal direction, adapting to the horizontal adjustment requirements of the steel structure. The set screw 106 is threadedly connected to the connecting block 105, and can be tightened during installation and debugging, pressing against the surface of the ball head 108 for limiting and fixing. The second electric push rod 302 in the second mounting groove 301 is electrically connected to the first electric push rod 102, and the two work together.

[0032] S4. When it is necessary to adjust the support height or cope with a large load, the first electric push rod 102 and the second electric push rod 302 extend synchronously to provide support force to the lifting plate 103 from different positions of the mounting base 1, thereby enhancing the stability and load-bearing capacity of the support structure; conversely, they shorten synchronously to reduce the support height. The four second electric push rods 302 located at the four corners of the mounting base 1 ensure that the lifting plate 103 remains horizontal during the lifting process, further improving the reliability of the support.

[0033] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A self-leveling universal support for temporary support of large-span steel structures, comprising a mounting base (1), an anti-vibration and anti-slip mechanism, a reinforcement and lifting mechanism, a fixing mechanism, and a stable placement mechanism, characterized in that, The upper end of the mounting base (1) is provided with a self-leveling support mechanism. The self-leveling support mechanism includes a first mounting groove (101) opened at the upper end of the mounting base (1). A first electric push rod (102) is fixedly installed inside the first mounting groove (101). A lifting plate (103) is fixedly connected to the upper end of the first electric push rod (102). Multiple fixed seats (104) are fixedly arranged in a circular array at the upper end of the lifting plate (103). A connecting block (105) is fixedly connected inside the fixed seat (104). A set screw (106) is provided inside the connecting block (105). A ball socket (107) is opened inside the connecting block (105). A ball head (108) is connected to the ball socket (107) by a ball hinge. A support plate (109) is fixedly connected to the upper surface of the ball head (108).

2. The self-leveling universal support for temporary support of large-span steel structures according to claim 1, characterized in that, The first mounting groove (101) is located at the upper center of the mounting base (1), and the set screw (106) is threadedly connected to the connecting block (105).

3. The self-leveling universal support for temporary support of a large-span steel structure according to claim 1, characterized in that, The shockproof and anti-slip mechanism includes a first rubber pad (201) fixedly connected to the upper side of the support plate (109), and a first anti-slip groove (202) is provided on the upper surface of the first rubber pad (201).

4. A self-leveling universal support for temporary support of a large-span steel structure according to claim 1, characterized in that, The reinforcement lifting mechanism includes a plurality of second mounting slots (301) opened on the upper end of the mounting base (1), and a second electric push rod (302) is fixedly installed inside the second mounting slot (301). The second electric push rod (302) is fixedly connected to the lifting plate (103).

5. A self-leveling universal support for temporary support of a large-span steel structure according to claim 1, characterized in that, Rubber blocks (401) are fixedly connected around the upper end of the mounting base (1), and protrusion grooves (402) are opened on the upper surface of the plurality of rubber blocks (401).

6. A self-leveling universal support for temporary support of a large-span steel structure according to claim 1, characterized in that, The fixing mechanism includes a slot (501) which is opened at the four corners of the mounting base (1), and a fixing hole (502) is opened through the interior of the mounting base (1).

7. A self-leveling universal support for temporary support of a large-span steel structure according to claim 1, characterized in that, The stable placement mechanism includes an inlay groove (601) formed on the lower surface of the mounting base (1), and a second rubber pad (602) is fixedly connected inside the inlay groove (601). A second anti-slip groove (603) is formed on the lower surface of the second rubber pad (602).

8. A self-leveling universal support for temporary support of a large-span steel structure according to claim 4, characterized in that, The second electric push rod (302) is electrically connected to the first electric push rod (102).

9. A construction method for a self-leveling universal support for temporary support of a large-span steel structure according to any one of claims 1-8, characterized in that: The following steps are involved: S1. First, pass the external fixing parts (such as bolts) through the slot 501 and fixing hole 502, and connect the mounting base 1 to the construction site foundation or other fixed structure. S2. When the large-span steel structure undergoes slight deformation or tilting due to temperature changes, uneven load distribution, or installation errors, the first electric push rod 102 in the first mounting groove 101 starts to work. The first electric push rod 102 extends or shortens, driving the lifting plate 103 to move up and down to adjust the support height. S3. The ball joint 107 is connected to the ball head 108 by a ball joint, so that the support plate 109 can rotate and move freely in the horizontal direction. The set screw 106 is threadedly connected to the connecting block 105, which can be tightened during installation and debugging to limit and fix the surface of the ball head 108. The second electric push rod 302 in the second mounting groove 301 is electrically connected to the first electric push rod (102), and the two work together. S4. When it is necessary to adjust the support height or cope with a large load, the first electric push rod 102 and the second electric push rod 302 extend synchronously to provide support force to the lifting plate 103 from different positions of the mounting base 1. Conversely, they shorten synchronously to reduce the support height.

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