A prestressed reinforcement structure for steel beams

Abstract

This utility model belongs to the field of steel beam structures and discloses a prestressed reinforcement structure for steel beams. This solution, through its detachable design, allows for subsequent installation and disassembly of the reinforcement structure according to usage requirements, enabling flexible adjustments based on different application scenarios. Furthermore, by connecting the fixed unit to the tensioning component, the user can apply upward prestress to the lower fixed unit through the tensioning component, thereby providing an upward prestress to the steel beam and enhancing the stability and load-bearing capacity of the steel beam structure. Compared to adding supporting steel components, this method saves more space, occupies less ground space, and minimizes interference with existing instruments and equipment.

Description

Technical Field

[0001] This utility model belongs to the field of steel beam structure technology, specifically relating to a prestressed reinforcement structure for steel beams. Background Technology

[0002] Steel beams are one of the main load-bearing components in steel structures. Commonly used types include I-beams and channel steels. They are widely used in building structures such as factories and warehouses due to their simple structure and good load-bearing capacity.

[0003] Since the design of factories, warehouses, etc. are all pre-designed and constructed, the steel beams may need to bear additional loads due to adjustments in usage requirements and other factors. In order to ensure that the steel beams can be used normally, supporting steel components are usually installed under the steel beams to reduce the bending moment force that the steel beams need to bear, so as to ensure the normal use of the steel beams.

[0004] However, adding supporting steel components will affect the facade effect of the original building structure. In other words, the supporting steel components require a large space and may affect the arrangement of instruments, equipment and other devices on the original ground, which means there is an interference problem. Utility Model Content

[0005] The present invention aims to provide a prestressed steel beam reinforcement structure to solve the problem mentioned above where the added supporting steel components may interfere with the existing instruments and equipment on the ground.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a prestressed steel beam reinforcement structure, comprising a steel beam body, and further comprising... The fixing unit is detachably installed on the steel beam body. Two sets of fixing units are spaced apart along the top of the steel beam body, and multiple sets are spaced apart along the bottom of the steel beam body. The horizontal projection of the fixing unit at the bottom of the steel beam body is located inside the horizontal projection of the two fixing units at the top of the steel beam body. The tensioning assembly is installed at both ends on two fixed units at the top of the steel beam body, and the tensioning assembly is also connected to the fixed unit at the bottom of the steel beam body.

[0007] The principle and effects of this technical solution: 1. The detachable design allows for easy installation and disassembly of the reinforcement structure according to usage requirements, enabling flexible adjustments based on different application scenarios. Furthermore, the connection of the tensioning components to the fixed units allows users to apply upward prestress to the lower fixed units, providing an upward prestress to the steel beam. This enhances the structural stability and load-bearing capacity of the steel beam. Compared to adding supporting steel components, this method saves more space, occupies less ground space, and minimizes interference with existing equipment.

[0008] The present invention is further configured such that: the fixing unit includes a connecting plate, a rotating plate, a limiting component, and a mounting seat; the steel beam body has a web and flanges located on the upper and lower sides of the web; the connecting plate slides against the top or bottom surface of the flange; rotating plates are rotatably installed on both sides of the connecting plate; the cross-section of the rotating plate is inverted "Z" shape; the rotating plate abuts against the side wall of the flange and the web; the limiting component is used to limit the position of the rotating plate and the connecting plate relative to the flange; the mounting seat is fixed on the side of the connecting plate away from the flange; and the tensioning component is connected to the mounting seat.

[0009] The principle and effect of this technical solution: By setting up a connecting plate, two rotating plates, and a limiting component, the rotating plate can rotate to cover the steel beam body together with the connecting plate. This prevents the connecting plate from detaching from or sliding relative to the steel beam body. Furthermore, by removing the limiting component from the rotating plate and connecting plate, the entire fixing unit can be detached from the steel beam body, making subsequent use and adjustments more flexible. The inverted Z-shaped rotating plate can better fit and cover the steel beam body, thus using the shape of the steel beam body to effectively limit the position of the connecting plate. The present invention is further configured such that: the tensioning assembly includes a steel strand, an anchor assembly and a vertical rod, the vertical rod is installed at the bottom of the mounting seat located below the wing plate, the steel strand is installed at the bottom of the vertical rod, the end of the steel strand passes through the mounting seat located above the wing plate and is installed with an anchor assembly, the anchor assembly abutting against the outside of the mounting seat located above the wing plate.

[0010] The principle and effect of this technical solution: The two ends of the steel strand are anchored to the upper mounting base by the anchor assembly, and the steel strand passes through the flange of the steel beam body and is connected to the upright. This allows the prestress of the hydraulic jack on the steel strand to be transferred through the upright to the mounting base located below the flange, and then through the mounting base to the flange, so that the steel beam body has a prestress, which can have better resistance to deformation and load-bearing capacity.

[0011] The present invention is further configured such that: the tensioning assembly also includes a fixed pulley, the fixed pulley is installed on the top of the connecting plate located above the wing plate, and the steel strand is overlapped with the fixed pulley.

[0012] The principle and effect of this technical solution: By setting up a fixed pulley, the steel strand can be better steered, reducing the torque force required for the mounting base located above the wing plate.

[0013] The present invention is further configured such that: a sleeve is installed at the bottom of the pole, and the sleeve is fitted onto the steel strand.

[0014] The principle and effect of this technical solution: By setting up the sleeve, the prestress of the steel strand can be abutted against the sleeve and transmitted to the upright through the sleeve, making the direction of the prestress on the upright more singular, that is, the force transmission effect is more uniform, and the effect of applying prestress to the steel beam body is better.

[0015] The present invention is further configured such that: the limiting component includes a first limiting bolt and a limiting nut, the end of the first limiting bolt passes through the rotating plate on one side, the web plate and the rotating plate on the other side in sequence, and the end of the first limiting bolt is threaded with a limiting nut, the head of the limiting bolt and the limiting nut respectively abut against the outer wall of the two rotating plates.

[0016] The principle and effect of this technical solution are as follows: By simultaneously inserting two rotating plates and a web plate with a first limiting bolt, and by limiting the first limiting bolt with a limiting nut, the two rotating plates cannot leave the web plate. This allows the rotating plates and connecting plates to stably cover the steel beam body as a whole. Furthermore, by restricting the sliding of the rotating plates with the first limiting bolt, the connecting plate cannot slide relative to the steel beam body. This allows the connecting plate and the mounting base to be stably installed on the steel beam body. Moreover, the reaction force required by the mounting base when applying prestress can be provided by the first limiting bolt.

[0017] The present invention is further configured such that: the limiting component also includes a second limiting bolt, the end of the second limiting bolt passing through the connecting plate and threadedly inserted into the wing plate.

[0018] The principle and effect of this technical solution: The connecting plate and the wing plate are directly connected by the second limiting bolt, which further improves the stability of the wing plate relative to the connecting plate. The reaction force when the prestress is applied is shared by the second limiting bolt and the first limiting bolt, so that the first limiting bolt is not easily deformed by the prestress load. Attached Figure Description

[0019] Figure 1 This is the front view of the present invention; Figure 2 for Figure 1 Enlarged view of point A; Figure 3 for Figure 2 Side view of the fixed unit in the middle; Figure 4 for Figure 1 Enlarged view of point B; Figure 5 for Figure 4 Side view of the fixed unit; Figure 6 This is a structural diagram of the fixing unit located above the steel beam body in Embodiment 2 of this utility model; Figure 7This is a structural diagram of the fixing unit located below the steel beam body in Embodiment 2 of this utility model. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: The reference numerals in the accompanying drawings include: 110. Steel beam body; 111. Web plate; 112. Flange plate; 210. Connecting plate; 220. Rotating plate; 230. Mounting base; 240. First limit bolt; 250. Limit nut; 260. Second limit bolt; 310. Steel strand; 320. Anchor assembly; 330. Vertical pole; 340. Fixed pulley; 350. Sleeve.

[0021] Example 1: As attached Figure 1-5 As shown, this utility model discloses a prestressed steel beam reinforcement structure, including a steel beam body 110. The steel beam body 110 has a web 111 and flanges 112 located on the upper and lower sides of the web 111 (the steel beam body 110 is an I-beam). The prestressed steel beam reinforcement structure also includes fixing units and tensioning components. The fixing units are detachably installed on the steel beam body 110. Two sets of fixing units are spaced apart along the top of the steel beam body 110, and multiple sets are also spaced apart along the bottom of the steel beam body 110 (in this solution, two sets of fixing units are set along the bottom of the steel beam body 110 as an example, and the actual number is adaptively increased according to the length of the steel beam body 110). The horizontal projection of the fixing unit at the bottom of the steel beam body 110 is located inside the horizontal projection of the two fixing units at the top of the steel beam body 110. The fixing unit includes a connecting plate 210, a rotating plate 220, a limiting component, and a mounting base 230. The connecting plate 210 slides against the top or bottom surface of the wing plate 112 (the connecting plate 210 of the fixing unit above the wing plate 112 abuts against the top surface of the wing plate 112 above the web plate 111, and the connecting plate 210 of the fixing unit below the wing plate 112 abuts against the bottom surface of the wing plate 112 below the web plate 111). The rotating plate 220 is rotatably mounted on both sides of the connecting plate 210. The cross-section of the rotating plate 220 is inverted "Z" shape. The rotating plate 220 abuts against the side wall of the wing plate 112 and the web plate 111. The limiting component is used to limit the position of the rotating plate 220 and the connecting plate 210 relative to the wing plate 112. The mounting base 230 is fixed to the side of the connecting plate 210 away from the wing plate 112. The tensioning component is connected to the mounting base 230.

[0022] The limiting assembly includes a first limiting bolt 240, a second limiting bolt 260, and a limiting nut 250. The end of the first limiting bolt 240 passes sequentially through a rotating plate 220 on one side, a web plate 111, and a rotating plate 220 on the other side, and the end of the first limiting bolt 240 is threadedly fitted with the limiting nut 250. The head of the limiting bolt and the limiting nut 250 respectively abut against the outer walls of the two rotating plates 220. The end of the second limiting bolt 260 passes through a connecting plate 210 and is threadedly inserted into a wing plate 112.

[0023] The tensioning components are installed at both ends on two fixed units at the top of the steel beam body 110 (one fixed unit corresponds to two sets of tensioning components, that is, one fixed unit is connected to two tensioning components at the same time, and tensioning on both sides can achieve a balancing effect on the steel beam body 110). The tensioning components pass through the steel beam body 110 and are also connected to the fixed unit at the bottom of the steel beam body 110. The tensioning assembly includes a steel strand 310, an anchor assembly 320, a fixed pulley 340, and a vertical rod 330. The vertical rod 330 is installed at the bottom of the mounting base 230 located below the wing plate 112. The bottoms of multiple vertical rods 330 are connected to a sleeve 350. The steel strand 310 passes through the sleeve 350, and the ends of the steel strand 310 pass through the two wing plates 112 and the mounting base 230 located above the wing plates 112 in sequence, and are installed with the anchor assembly 320. The anchor assembly 320 typically includes a pad, an anchor seat, and a wedge. The wedge is located inside the anchor seat. The steel strand passes through the anchor seat and the wedge. The pad abuts against the mounting base 230, and the anchor seat abuts against the pad. The cooperation of the wedge and the anchor seat restricts the movement of the steel strand 310 toward the sleeve 350, that is, it can apply prestress in one direction. A fixed pulley 340 is installed on the top of the connecting plate 210 located above the wing plate 112, and the steel strand 310 is overlapped with the fixed pulley 340. A sleeve 350 is installed at the bottom of the upright 330, and the sleeve 350 is fitted onto the steel strand 310.

[0024] Example 2, as shown in the appendix Figure 6 , Figure 7 The difference from Embodiment 1 is that in this scheme, the dimension of the mounting base 230 along the width direction of the wing plate 112 is larger than the width of the wing plate 112. That is, both ends of the mounting base 230 are located on the outside of the wing plate 112. The projections of the anchor assembly, the upright 330 and the sleeve 350 in the horizontal direction are all located on the outside of the projection of the wing plate 112 in the horizontal direction. At this time, the steel strand 310 does not need to pass through the wing plate 112, which reduces the number of holes required to be opened in the wing plate 112 and reduces the impact of adding this device on the strength of the steel beam body 110. In addition, since the steel strand 310 will not directly contact the wing plate 112 in this scheme, the wing plate 112 will not restrict the angle of the steel strand, and the fixed pulley 340 does not need to be installed.

[0025] The parts of the device not covered herein are the same as or can be implemented using existing technologies.

[0026] Among them, insert and sliding insert are mating bodies with holes, the cross section of the shaft or rod matches the hole, and the shaft or rod can slide relative to the hole. Threaded insert is a hole with threads, the shaft or rod is threaded, and the shaft or rod is connected to the mating body by screwing. Detachable installation can be by bolt thread connection or bolt and nut connection, etc., depending on what can be actually achieved.

[0027] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A prestressed steel beam reinforcement structure, comprising a steel beam body, characterized in that: Also includes The fixing unit is detachably installed on the steel beam body. Two sets of the fixing unit are spaced apart along the top of the steel beam body, and multiple sets are spaced apart along the bottom of the steel beam body. The horizontal projection of the fixing unit at the bottom of the steel beam body is located inside the horizontal projection of the two fixing units at the top of the steel beam body. The tensioning assembly is installed at both ends on two fixed units at the top of the steel beam body, and the tensioning assembly is also connected to the fixed unit at the bottom of the steel beam body.

2. The prestressed steel beam reinforcement structure as described in claim 1, characterized in that: The fixing unit includes a connecting plate, a rotating plate, a limiting component, and a mounting base. The steel beam body has a web and flanges located on the upper and lower sides of the web. The connecting plate slides against the top or bottom surface of the flange. Rotating plates are rotatably mounted on both sides of the connecting plate. The rotating plate has an inverted "Z" shaped cross-section. The rotating plate abuts against the sidewall of the flange and the web. The limiting component is used to limit the position of the rotating plate and the connecting plate relative to the flange. The mounting base is fixed to the side of the connecting plate away from the flange. The tensioning component is connected to the mounting base.

3. The prestressed steel beam reinforcement structure as described in claim 2, characterized in that: The tensioning assembly includes a steel strand, an anchor assembly, and a vertical pole. The vertical pole is installed at the bottom of the mounting base located below the wing plate. The steel strand is installed at the bottom of the vertical pole. The end of the steel strand passes through the mounting base located above the wing plate and is installed with an anchor assembly. The anchor assembly abuts against the outside of the mounting base located above the wing plate.

4. The prestressed steel beam reinforcement structure as described in claim 3, characterized in that: The tensioning assembly also includes a fixed pulley, which is installed on the top of the connecting plate located above the wing plate, and the steel strand is lapped on the fixed pulley.

5. A prestressed steel beam reinforcement structure as described in claim 3, characterized in that: A sleeve is installed at the bottom of the pole, and the sleeve is fitted onto the steel strand.

6. The prestressed steel beam reinforcement structure as described in claim 2, characterized in that: The limiting assembly includes a first limiting bolt and a limiting nut. The end of the first limiting bolt passes through a rotating plate on one side, a web plate, and a rotating plate on the other side in sequence, and the end of the first limiting bolt is threaded with a limiting nut. The head of the limiting bolt and the limiting nut abut against the outer walls of the two rotating plates, respectively.

7. A prestressed steel beam reinforcement structure as described in claim 6, characterized in that: The limiting assembly also includes a second limiting bolt, the end of which passes through the connecting plate and is threaded into the wing plate.

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