Prestressed suspension cable structure for reinforcing portal rigid frame

Abstract

The utility model relates to the technical field of steel frame reinforcement, in particular to a prestressed suspension cable structure for reinforcing a portal rigid frame, which comprises a main suspension cable, two ends of the main suspension cable are connected with main support rods, the main support rods are positioned at positions, close to steel columns, of steel beams, the main support rods are fixedly connected with the steel beams, the main suspension cable is connected with multiple sections of steel cables, and one ends, away from the main suspension cable, of the steel cables are connected with the steel beams. And the steel cable and the main suspension cable are in a tensioning state, so that the effects of reinforcing the portal rigid frame and not influencing the effective space in the portal rigid frame room are achieved.

Description

Technical Field

[0001] This application relates to the field of steel frame reinforcement technology, and in particular to a prestressed suspension structure for portal frame reinforcement. Background Technology

[0002] Large roof areas are increasingly attracting attention in the photovoltaic industry, especially portal steel structures for light industrial steel frame plants. These structures are favored for their flat roofs and large usable area. However, due to factors such as limited load-bearing capacity and stricter national design standards, directly adding loads to portal steel frame roofs can lead to insufficient structural load-bearing capacity and deflection issues that fail to meet current standards.

[0003] Currently, the reinforcement of portal frames is mostly achieved by adding reinforcing bars indoors. However, this method reduces the usable indoor space and affects the functionality of the factory building. Utility Model Content

[0004] In order to achieve the goal of reinforcing portal frames without affecting the effective space inside the portal frame, this application provides a prestressed suspension structure for reinforcing portal frames.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0006] A prestressed cable-stayed structure for reinforcing a portal frame includes a main suspension cable with main struts connected to both ends. The main struts are located near the steel columns of the steel beam and are fixedly connected to the steel beam. The main suspension cable is connected to multiple steel cables, and the ends of the steel cables away from the main suspension cable are connected to the steel beam. Both the steel cables and the main suspension cable are under tension.

[0007] By adopting the above scheme, the pressure on the middle of the steel beam is distributed to the edge of the steel beam supported by steel columns by installing the main steel cables and main suspension cables outdoors, thereby increasing the load-bearing capacity of the steel beam. Since the steel cables and suspension cables are located outdoors, they do not affect the effective indoor space, thus achieving the goal of reinforcing the portal frame without affecting the effective indoor space.

[0008] Optionally, the steel column is connected to an auxiliary support rod, and an auxiliary suspension cable is provided between the main support rod and the auxiliary support rod, with the auxiliary suspension cable in a tensioned state.

[0009] By adopting the above scheme, auxiliary struts are set up and connected to the main struts through auxiliary suspension cables, thereby balancing the tension of the main suspension cables, further strengthening the bearing capacity of the main struts, and thus further enhancing the load-bearing capacity of the portal frame.

[0010] Optionally, the auxiliary support rod is fixedly connected to a connecting steel cable, and a connecting steel cable is hinged to a connecting section plate at the end of the connecting steel cable away from the auxiliary support rod. The connecting section plate is fixedly connected to the bottom of the steel column.

[0011] By adopting the above scheme, the pressure on the steel beams is further dispersed, making the pressure on the steel beams and columns more uniform, thereby further improving the load-bearing capacity of the portal frame.

[0012] Optionally, a fixing plate is provided at the end of the main support rod that connects to the steel beam, and a fixing plate is provided at the end of the auxiliary support rod that connects to the steel column. The fixing plate is fixedly connected to the steel column or steel beam by bolts and nuts.

[0013] By adopting the above solution, the connection between the fixing plate and the steel column or steel beam is made more secure, and the connection by bolts and nuts is more convenient.

[0014] Optionally, the main support rod has a through hole, and a transmission ring is rotatably connected inside the through hole. The transmission ring has an internal thread, and a threaded rod is fixedly connected to the end of the main suspension cable. The threaded rod is threadedly connected inside the transmission ring.

[0015] By adopting the above scheme, the operator can rotate the transmission ring to drive the threaded rod to move along the axis of the transmission ring, thereby causing the main suspension cable to be tensioned or relaxed. This makes it easier for the operator to install the suspension cable, and the operator can adjust the tension of the steel cable by adjusting the tension of the main suspension cable.

[0016] Optionally, the main support rod has a rectangular hole, which is parallel to the through hole. A rectangular rod is slidably connected inside the rectangular hole, and the rectangular rod is fixedly connected to the threaded rod.

[0017] By adopting the above scheme, a rectangular rod is set to prevent the threaded rod from rotating, thereby making the transmission between the transmission ring and the threaded rod smoother.

[0018] Optionally, the main support rod has a transmission cavity that communicates with the through hole. A worm gear is fixedly connected to the outside of the transmission ring. The worm gear meshes with a worm, which is rotatably connected in the transmission cavity, and one end of the worm extends out of the main support rod.

[0019] By adopting the above scheme, the rotation of the worm gear drives the rotation of the worm wheel, which in turn drives the rotation of the transmission ring, which in turn drives the threaded rod to move, thus tightening the main suspension cable.

[0020] Optionally, a node plate is hinged to one end of the steel cable and the steel beam. A threaded hole is opened on the surface of the node plate, and a threaded post is threadedly connected in the threaded hole. A clamping plate is rotatably connected to one end of the threaded post away from the node plate, and a limit plate is fixedly connected to one end of the threaded post connected to the clamping plate to prevent the clamping plate from separating from the threaded post.

[0021] By adopting the above solution, when it is necessary to connect the steel cable to the steel beam, the operator can use the clamping plate and the node plate to clamp the I-beam, and rotate the threaded column to make the clamping plate and the node plate tighten the I-beam, thereby fixing the steel cable and the steel beam.

[0022] In summary, this application has the following technical effects:

[0023] 1. By setting up main struts, main suspension cables, and steel cables, the pressure on the steel beam is transferred to the location of the main struts, thereby achieving the goal of strengthening the portal frame without affecting the effective indoor space;

[0024] 2. The portal frame was further reinforced by installing auxiliary support rods;

[0025] 3. The worm gear system makes it easier for operators to tension the main suspension cable. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this application;

[0027] Figure 2 This is a partial structural diagram intended to emphasize the main support rod in this application;

[0028] Figure 3 This is a partial structural cross-sectional view intended to emphasize the internal structure of the main strut in this application;

[0029] Figure 4 This is a partial structural diagram intended to emphasize the node plate in this application.

[0030] In the diagram, 1. Main suspension cable; 11. Threaded rod; 12. Rectangular rod; 2. Main support rod; 21. Fixing plate; 22. Through hole; 23. Transmission ring; 24. Rectangular hole; 3. Steel cable; 4. Auxiliary support rod; 41. Connecting steel cable; 42. Connecting joint plate; 5. Auxiliary suspension cable; 6. Worm gear; 61. Worm wheel; 7. Node plate; 71. Threaded column; 711. Limiting plate; 72. Clamping plate; 8. Steel beam; 9. Steel column. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] Reference Figure 1A prestressed cable-stayed structure for reinforcing a portal frame includes a main suspension cable 1, with main struts 2 connected to both ends of the main suspension cable 1. The main struts 2 are located on a steel beam 8 near a steel column 9 and are fixedly connected to the steel beam 8. The main suspension cable 1 is connected to multiple steel cables 3, with one end of each steel cable 3 connected to the steel beam 8 away from the main suspension cable 1. Both the steel cables 3 and the main suspension cable 1 are under tension. By installing the main steel cables 3 and the main suspension cable 1 outdoors, the pressure on the middle of the steel beam 8 is distributed to the edges of the steel beam 8 supported by the steel columns 9, thereby increasing the load-bearing capacity of the steel beam 8. Since the steel cables 3 and the suspension cable are located outdoors, they do not affect the effective indoor space, thus achieving the goal of reinforcing the portal frame without affecting the effective indoor space.

[0033] Reference Figure 1 Auxiliary support rods 4 are connected to steel column 9, and auxiliary suspension cables 5 are installed between main support rod 2 and auxiliary support rod 4, with the auxiliary suspension cables 5 in a tensioned state. The auxiliary support rod 4, connected to the main support rod 2 via the auxiliary suspension cables 5, balances the tension of the main suspension cables 1, further strengthening the load-bearing capacity of the main support rod 2 and thus further enhancing the load-bearing capacity of the portal frame. A connecting steel cable 413 is fixedly connected to the auxiliary support rod 4, and a connecting plate 42 is hinged to the end of the connecting cable 413 away from the auxiliary support rod 4. The connecting plate 42 is fixedly connected to the bottom of steel column 9. This further disperses the pressure on steel beam 8, making the pressure on steel beam 8 and steel column 9 more uniform, thereby further improving the load-bearing capacity of the portal frame.

[0034] Reference Figure 1 A fixing plate 21 is provided at the end where the main support rod 2 connects to the steel beam 8, and a fixing plate 21 is provided at the end where the auxiliary support rod 4 connects to the steel column 9. The fixing plate 21 is fixedly connected to the steel column 9 or steel beam 8 by bolts and nuts. This makes the connection between the fixing plate 21 and the steel column 9 or steel beam 8 more secure and the connection by bolts and nuts more convenient.

[0035] Reference Figure 2 and Figure 3The main support rod 2 has a through hole 22, and a transmission ring 23 is rotatably connected inside the through hole 22. The transmission ring 23 has internal threads, and a threaded rod 11 is fixedly connected to the end of the main suspension cable 1. The threaded rod 11 is threadedly connected inside the transmission ring 23. The main support rod 2 has a rectangular hole 24, which is parallel to the through hole 22. A rectangular rod 12 is slidably connected inside the rectangular hole 24, and the rectangular rod 12 is fixedly connected to the threaded rod 11. A transmission cavity is formed inside the main support rod 2, which communicates with the through hole 22. A worm gear 61 is fixedly connected to the outside of the transmission ring 23. The worm gear 61 meshes with a worm 6, which is rotatably connected inside the transmission cavity, and one end of the worm 6 extends out of the main support rod 2. The rotation of the worm gear 6 drives the worm wheel 61 to rotate, which in turn drives the transmission ring 23 to rotate, which in turn drives the threaded rod 11 to move along the axis of the transmission ring 23. The rectangular rod 12 prevents the threaded rod 11 from rotating, thereby causing the main suspension cable 1 to be tensioned or relaxed, making it easier for the operator to install the suspension cable. The operator can also adjust the tension of the steel cable 3 by adjusting the tension of the main suspension cable 1.

[0036] Reference Figure 4 A node plate 7 is hinged to one end of the steel cable 3, which connects to the steel beam 8. The node plate 7 has a threaded hole on its surface, and a threaded post 71 is threaded into the hole. A clamping plate 72 is rotatably connected to the end of the threaded post 71 facing away from the node plate 7. A limiting plate 711 is fixedly connected to the end of the threaded post 71 connected to the clamping plate 72, preventing the clamping plate 72 from detaching from the threaded post 71. When it is necessary to connect the steel cable 3 to the steel beam 8, the operator can use the clamping plate 72 and the node plate 7 to clamp the I-beam, and rotate the threaded post 71 to tighten the clamping plate 72 and the node plate 7, thereby fixing the steel cable 3 and the steel beam 8.

[0037] The specific implementation principle of this application is as follows: When reinforcing the portal frame, the main support rod 2 and the auxiliary support rod 4 are installed, and the steel cable 3 and the suspension cable are connected. The threaded column 71 is rotated so that the node plate 7 and the clamping plate 72 clamp the steel beam 8. Then, the worm gear 6 is rotated to drive the worm wheel 61 to rotate, thereby driving the transmission ring 23 to rotate, so that the main suspension cable 1 is tightened, thereby distributing the pressure on the steel beam 8 to the position of the main support rod 2, thereby increasing the load-bearing capacity of the portal frame. Then, waterproofing measures are taken at the opening in the roof. This application reinforces the portal frame without affecting the effective indoor space.

[0038] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A prestressed cable-stayed structure for reinforcing portal frames, characterized in that: It includes a main suspension cable (1), with main support rods (2) connected to both ends of the main suspension cable (1). The main support rods (2) are located on the steel beam (8) near the steel column (9). The main support rods (2) are fixedly connected to the steel beam (8). The main suspension cable (1) is connected to multiple steel cables (3), and the end of the steel cable (3) away from the main suspension cable (1) is connected to the steel beam (8). Both the steel cable (3) and the main suspension cable (1) are in a tensioned state.

2. The prestressed cable-stayed structure for reinforcing a portal frame according to claim 1, characterized in that: The steel column (9) is connected to an auxiliary support rod (4), and an auxiliary suspension cable (5) is provided between the main support rod (2) and the auxiliary support rod (4), and the auxiliary suspension cable (5) is in a tensioned state.

3. The prestressed cable-stayed structure for reinforcing a portal frame according to claim 2, characterized in that: The auxiliary support rod (4) is fixedly connected to a connecting steel cable (41)(3). The end of the connecting steel cable (41)(3) away from the auxiliary support rod (4) is hinged to a connecting section plate (42). The connecting section plate (42) is fixedly connected to the bottom of the steel column (9).

4. A prestressed cable-stayed structure for reinforcing a portal frame according to claim 2, characterized in that: The main support rod (2) is connected to the steel beam (8) with a fixing plate (21) at one end, and the auxiliary support rod (4) is connected to the steel column (9) with a fixing plate (21) at one end. The fixing plate (21) is fixedly connected to the steel column (9) or the steel beam (8) by bolts and nuts.

5. A prestressed cable-stayed structure for reinforcing a portal frame according to claim 1, characterized in that: The main support rod (2) has a through hole (22), and a transmission ring (23) is rotatably connected inside the through hole (22). The transmission ring (23) has an internal thread, and a threaded rod (11) is fixedly connected to the end of the main suspension cable (1). The threaded rod (11) is threadedly connected inside the transmission ring (23).

6. A prestressed cable-stayed structure for reinforcing a portal frame according to claim 5, characterized in that: The main support rod (2) has a rectangular hole (24) that is parallel to the through hole (22). A rectangular rod (12) is slidably connected inside the rectangular hole (24) and is fixedly connected to the threaded rod (11).

7. A prestressed cable-stayed structure for reinforcing a portal frame according to claim 5, characterized in that: The main support rod (2) has a transmission cavity, which is connected to the through hole (22). A worm wheel (61) is fixedly connected to the outside of the transmission ring (23). The worm wheel (61) meshes with a worm (6). The worm (6) is rotatably connected in the transmission cavity, and one end of the worm (6) passes through the main support rod (2).

8. A prestressed cable-stayed structure for reinforcing a portal frame according to claim 1, characterized in that: The steel cable (3) is connected to the steel beam (8) at one end by a node plate (7). The node plate (7) has a threaded hole on its surface. A threaded post (71) is threaded into the threaded hole. A clamping plate (72) is rotatably connected to the end of the threaded post (71) away from the node plate (7). A limiting plate (711) is fixedly connected to the end of the threaded post (71) connected to the clamping plate (72). The limiting plate (711) prevents the clamping plate (72) from separating from the threaded post (71).

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