A reinforced steel structure suitable for long span

Abstract

The utility model discloses a kind of reinforced steel structures suitable for large span, it is related to large-span steel structure technical field, including vertical steel plate, the vertical steel plate upper and lower both sides are fixedly installed with horizontal steel plate, multiple sets of clamping components, multiple sets The clamping components are respectively installed in the both sides of two horizontal steel plates, and for clamping horizontal steel plate, connecting component, the connecting component is installed between longitudinal opposite clamping components, and for connecting opposite clamping component.The utility model, by installing first backing plate and second backing plate in the contact surface of clamping component and horizontal steel plate, to avoid the corrosion caused by the surface of horizontal steel plate being scratched, by the cooperation of clamping component and first web and second web, the rigidity and carrying capacity of steel structure whole can be improved, so that traditional web can be replaced, avoid welding point cracking to cause cracking place as the breakthrough of corrosion, reduce subsequent maintenance cost, avoid the strength reduction of steel structure due to corrosion.

Description

Technical Field

[0001] This utility model relates to the field of large-span steel structure technology, and in particular to a reinforced steel structure suitable for large spans. Background Technology

[0002] Large-span steel structures are a type of structure widely used in the fields of architecture and bridges. They are mainly made of steel and have a strong load-bearing capacity, capable of supporting large loads. They are suitable for large public buildings, such as stadiums and exhibition halls. They have good seismic performance and perform well under extreme conditions such as earthquakes, ensuring building safety. They are widely used in occasions that require large spaces without column support, such as hospital lobbies and airport waiting halls.

[0003] Currently, large-span steel structures are generally I-beam structures. To improve the overall rigidity and load-bearing capacity of the steel structure, stiffening plates are usually welded to the sides of the steel structure. However, this design still has some shortcomings. When the structure is subjected to bending, shearing, or vibration loads from the large span, the connection edge between the stiffening plate and the main component (especially the welded area) will experience stress concentration due to abrupt changes in stiffness. This prevents the load from being evenly distributed, and the local stress may far exceed the material's design strength. Over time, this can easily lead to cracks. In humid environments, moisture in the air can act as a breakthrough point for these cracks, damaging not only the stiffening plate but also corroding the main steel structure, thus reducing the overall strength of the steel structure. Furthermore, since the stiffening plate is welded to the main steel structure, subsequent repairs to rusted areas will result in low repair efficiency and high repair costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a reinforced steel structure suitable for large spans. It solves the problem that when a structure is subjected to bending, shearing, or vibration loads from a large span, stress concentration occurs at the connection edges (especially welded areas) between the stiffening plates and the main components due to abrupt changes in stiffness. This prevents the load from being evenly distributed, and localized stress may far exceed the material's design strength. Over time, this can lead to cracks. In humid environments, moisture in the air can act as a breach in these cracks, damaging not only the stiffening plates but also corroding the main steel structure, thus reducing the overall strength of the steel structure. Furthermore, since the stiffening plates are welded to the main steel structure, subsequent repairs to corroded areas will be inefficient and costly.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A reinforced steel structure suitable for large spans includes vertical steel plates, with horizontal steel plates fixedly installed on both the upper and lower sides of the vertical steel plates;

[0007] Multiple sets of clamping assemblies are respectively installed on both sides of two transverse steel plates and are used to clamp the transverse steel plates.

[0008] A connecting component is installed between longitudinally opposing clamping components and is used to connect the opposing clamping components.

[0009] Preferably, the clamping assembly includes:

[0010] Two first clamping blocks are respectively set at the edge of the opposite side of the transverse steel plate, and two second clamping blocks are set at the edge of the other side of the two transverse steel plates. The two second clamping blocks are respectively inserted into the two first clamping blocks.

[0011] Preferably, the connection component includes:

[0012] A first rib is provided between each of the clamping components perpendicularly to each other, and a second rib is provided between each of the clamping components at an incline. The combination of multiple second ribs is corrugated.

[0013] Preferably, a second pad is provided on the inner side of each of the first clamping blocks, and a first pad is provided on the inner side of each of the second clamping blocks. One side plane of the first pad and the second pad can be a horizontal plane or an arc-shaped plane.

[0014] Preferably, three bearing seats are fixedly installed on each of the longitudinally opposite sides of the plurality of second clamping blocks.

[0015] Preferably, each of the plurality of bearing seats has a pin rotatably mounted on its inner wall, and the plurality of pins respectively pass through and are rotatably connected to the first rib and the second rib, and each of the plurality of pins has a snap ring attached to the outer wall of one end.

[0016] Preferably, a cross-shaped groove is provided on one side of each of the plurality of first pads and second pads, and a cross-shaped limiting block is fixedly installed on the inner side of each of the plurality of first clamping blocks and first pads.

[0017] Preferably, a connecting plate is fixedly installed between the two sides of the first clamping block on the horizontal side.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] By installing a first pad and a second pad on the contact surface between the clamping assembly and the transverse steel plate, corrosion caused by scratches on the surface of the transverse steel plate is avoided. The cooperation between the clamping assembly and the first and second stiffening plates can improve the overall rigidity and load-bearing capacity of the steel structure, thereby replacing traditional stiffening plates. This avoids cracking at the weld points, which could become entry points for corrosion, reducing subsequent maintenance costs and preventing the steel structure from losing strength due to corrosion, thus extending the service life of the steel structure. When the clamping assembly, the first stiffening plate, or the second stiffening plate is damaged, only the damaged parts need to be replaced, improving maintenance efficiency and reducing maintenance costs. Attached Figure Description

[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure in the reinforced state of this utility model;

[0023] Figure 3 This is a schematic diagram of the regional structure of the first stiffener in this utility model;

[0024] Figure 4 This is a schematic diagram of the regional structure of the second clamping block in this utility model;

[0025] Figure 5 This is a schematic diagram of the regional structure of the first clamping block in this utility model;

[0026] Figure 6 This is a schematic diagram of the first and second pads in the horizontal contact surface state of this utility model;

[0027] Figure 7 This is a schematic diagram of the first and second pads in the arc-shaped contact surface state of this utility model.

[0028] Legend: 1. Horizontal steel plate; 2. First stiffening plate; 3. Second stiffening plate; 4. Vertical steel plate; 5. Connecting plate; 6. First clamping block; 7. Second clamping block; 8. First pad; 9. Shaft seat; 10. Pin; 11. Cross limit block; 12. Second pad; 13. Cross groove; 14. Snap ring. Detailed Implementation

[0029] This application provides a reinforced steel structure suitable for large spans, effectively solving the problem that when a structure is subjected to bending, shearing, or vibration loads from a large span, stress concentration occurs at the connection edges (especially at welded areas) between the stiffening plates and the main components due to abrupt changes in stiffness. This prevents the load from being evenly distributed, and the local stress may far exceed the material's design strength. Over time, this can lead to cracks. In humid environments, moisture in the air can act as a breach point, damaging not only the stiffening plates but also corroding the main steel structure, thus reducing the overall strength of the steel structure. Furthermore, since the stiffening plates are welded to the main steel structure, subsequent repairs to the corroded areas will result in low repair efficiency and high repair costs. Example

[0030] like Figure 1 - Figure 7 As shown, the technical solution in this application effectively solves the problem that when a structure is subjected to bending, shearing, or vibration loads from a large span, stress concentration occurs at the connection edges (especially at welded areas) between the stiffening plates and the main components due to abrupt changes in stiffness. This causes the load to be unevenly distributed, and the local stress may far exceed the material's design strength. Over time, this can easily lead to cracks. In humid environments, moisture in the air can act as a breakthrough point, damaging not only the stiffening plates but also corroding the main steel structure, thus reducing the overall strength of the steel structure. Furthermore, since the stiffening plates are welded to the main steel structure, subsequent repairs to the corroded areas will result in low repair efficiency and high repair costs.

[0031] Transverse steel plate 1: Q690R high-strength steel (yield strength ≥690MPa) is used to replace the traditional Q345B, which can achieve a structural weight reduction of 15% to 20%. The shape of the steel plate can be flat or curved.

[0032] First stiffener 2: Made of Q690R high-strength steel, it is a long plate with round holes at both ends for connecting pins 10, and is installed perpendicular to the arc of the transverse steel plate 1.

[0033] Second stiffener 3: It is a long plate made of Q690R high-strength steel, with round holes at both ends for connecting pins 10, and is inclined to the arc of the transverse steel plate 1.

[0034] Vertical steel plate 4: Made of Q690R high-strength steel, it is fixed to the horizontal steel plate 1 by welding. Low-hydrogen welding rods or wires such as E5015-G are used. Before welding, the temperature must be strictly dried above 350℃ and kept at the temperature for 1 hour to avoid porosity or hydrogen-induced cracks in the weld.

[0035] Connecting plate 5: It is long and narrow, made of Q690R high-strength steel, with through holes at both ends for mounting bolts. Both ends are fixed to two horizontally opposite first clamping blocks 6 by bolts.

[0036] First clamping block 6: It is an L-shaped metal made of Q690R high-strength steel. One end has a square slot for connecting with the second clamping block 7. It is fixed to the second clamping block 7 by bolts. The inner side has a rectangular groove for embedding and installing the second pad 12.

[0037] The second clamping block 7 is an L-shaped metal made of Q690R high-strength steel, with a rectangular groove on the inner side for installing the first pad 8.

[0038] First pad 8: is a polytetrafluoroethylene pad, which is not easy to scratch the surface of the transverse steel plate 1. The surface can be a curved surface or a flat surface.

[0039] Shaft seat 9: Made of Q690R high-strength steel, it is cast integrally with the second clamping block 7. Each second clamping block 7 has three sets of shaft seats 9, located in the center position and on both sides of the center position respectively. The shaft seats 9 on both sides are used to connect the second stiffening plate 3, and the shaft seat 9 in the center is used to connect the first stiffening plate 2.

[0040] Pin 10: Made of Q690R high-strength steel, it is a cylindrical pin with an annular groove at one end for installing snap ring 14;

[0041] Cross-shaped limiting block 11: It is a cross-shaped metal, made of Q690R high-strength steel. The cross-shaped limiting blocks 11 on the first clamping block 6 and the second clamping block 7 are fixed by welding.

[0042] Second pad 12: is a polytetrafluoroethylene pad, which is not easy to scratch the surface of the transverse steel plate 1. The surface can be a curved surface or a flat surface.

[0043] Cross-shaped groove 13: It is a cross-shaped groove that restricts the movement of the second pad 12 or the first pad 8 by cooperating with the cross-shaped limiting block 11;

[0044] Snap ring 14: This is a metal snap ring made of Q690R high-strength steel, used to prevent pin 10 from disengaging from bearing seat 9. Example

[0045] like Figure 1As shown, when the overall load-bearing and stiffness requirements of the steel structure are conventional, multiple clamping components can be installed on the two transverse steel plates 1. Adjacent clamping components need to be installed at an angle, and then the clamping components are alternately connected by the second stiffening plate 3. The second stiffening plate 3 is installed on the bearing seat 9 on the side of the second clamping block 7. The whole composed of multiple second stiffening plates 3 and multiple clamping components is corrugated, so that the two transverse steel plates 1 can be inclined and supported at multiple points, thereby improving the overall rigidity and load-bearing capacity of the steel structure. Example

[0046] like Figure 2 As shown, when the overall load-bearing and stiffness requirements of the steel structure are high, multiple clamping components can be installed on the two transverse steel plates 1. Adjacent clamping components need to be installed at an angle. Then, on this basis, another set of clamping components is installed at the vertical foot of each clamping component perpendicular to the transverse steel plate 1. The clamping components are then connected alternately vertically by the second stiffening plate 3. The second stiffening plate 3 is installed on the bearing seat 9 on the side of the second clamping block 7. The whole composed of multiple second stiffening plates 3 and multiple clamping components is corrugated, which can provide multi-point diagonal tension and support for the two transverse steel plates 1. Then, the vertically opposite clamping components are connected by the first stiffening plate 2, which can provide support or tension perpendicular to the contact surface for the two transverse steel plates 1, further improving the overall rigidity and load-bearing capacity of the steel structure and strengthening the steel structure. Example

[0047] like Figure 6 As shown, when the surface of the transverse steel plate 1 is flat, the contact surfaces of the first pad 8 and the second pad 12 with the transverse steel plate 1 can be designed as flat shapes, so that the first pad 8 and the second pad 12 fit more closely with the surface of the transverse steel plate 1, thereby adapting to the flat surface of the transverse steel plate 1. Example

[0048] like Figure 7 As shown, when the surface of the transverse steel plate 1 is curved, the contact surfaces of the first pad 8 and the second pad 12 with the transverse steel plate 1 can be designed as curved surfaces. The curvature of the curved surface is the same as that of the transverse steel plate 1, so that the first pad 8 and the second pad 12 fit the surface of the transverse steel plate 1 better, thus adapting to the curved surface of the transverse steel plate 1.

[0049] Working principle:

[0050] First, the first clamping block 6 and the second clamping block 7 clamp the upper and lower sides of the transverse steel plate 1 respectively. Then, the second pad 12 and the first pad 8 are installed on the inner sides of the first clamping block 6 and the second clamping block 7 respectively. Next, the first clamping block 6 and the second clamping block 7 are locked with bolts, so that the first clamping block 6 and the second clamping block 7 clamp one of the transverse steel plates 1. Then, the clamping assembly is installed on the other transverse steel plate 1 in the same way. Then, the clamping assembly is connected alternately from top to bottom by the second stiffening plate 3. The two ends of the second stiffening plate 3 are connected to the shaft seat 9 on the side of the second clamping block 7 and then restricted by the pin 10 and the pin 10 is restricted by the snap ring 14. After the connection is completed, the multiple second stiffening plates 3 and the clamping assembly present a corrugated shape, which makes the two connected transverse steel plates 1 more rigid and stronger in load-bearing capacity.

[0051] The second step, based on the first step, is to install a clamping component on the horizontal steel plate 1 directly opposite each clamping component. Then, the line connecting the two clamping components is perpendicular to the horizontal steel plate 1. The two clamping components are then connected by the first stiffener 2, which provides a support or tensile force perpendicular to the contact surface to the two horizontal steel plates 1, further improving the overall rigidity of the steel structure.

[0052] The third step involves setting clamping components on both sides of the transverse steel plate 1, and then connecting the two horizontally opposite clamping components with a connecting plate 5, thereby preventing the clamping components from detaching from the transverse steel plate 1.

[0053] Fourth, by cooperating with the clamping assembly and the first stiffening plate 2 and the second stiffening plate 3, the overall rigidity and load-bearing capacity of the steel structure can be improved, thereby replacing the traditional stiffening plate and avoiding corrosion caused by weld cracking. When the clamping assembly, the first stiffening plate 2 or the second stiffening plate 3 is damaged, only the damaged parts need to be replaced, which improves the efficiency of maintenance.

[0054] The fifth step is to install a first pad 8 and a second pad 12 on the contact surface between the clamping assembly and the transverse steel plate 1, thereby preventing the surface of the transverse steel plate 1 from being scratched and corroded.

[0055] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A reinforced steel structure suitable for large spans, characterized in that, include: Vertical steel plate (4), with horizontal steel plates (1) fixedly installed on both the upper and lower sides of the vertical steel plate (4); Multiple sets of clamping components are respectively installed on both sides of two transverse steel plates (1) and are used to clamp the transverse steel plates (1). A connecting component is installed between longitudinally opposing clamping components and is used to connect the opposing clamping components.

2. The reinforced steel structure suitable for large spans as described in claim 1, characterized in that, The clamping assembly includes: Two first clamping blocks (6) are respectively set at the edge of the opposite side of the transverse steel plate (1), and two second clamping blocks (7) are set at the edge of the other side of the two transverse steel plates (1). The two second clamping blocks (7) are respectively inserted into the two first clamping blocks (6).

3. A reinforced steel structure suitable for large spans as described in claim 1, characterized in that, The connection component includes: A first rib (2) is provided between each of the clamping components perpendicularly to each other, and a second rib (3) is provided between each of the clamping components inclined to each other.

4. A reinforced steel structure suitable for large spans as described in claim 2, characterized in that: The inner sides of the plurality of first clamping blocks (6) are provided with second pads (12), and the inner sides of the plurality of second clamping blocks (7) are provided with first pads (8).

5. A reinforced steel structure suitable for large spans as described in claim 2, characterized in that: Each of the multiple second clamping blocks (7) has three bearing seats (9) fixedly installed on one of the longitudinally opposite sides.

6. A reinforced steel structure suitable for large spans as described in claim 5, characterized in that: Each of the multiple bearing seats (9) has a pin (10) rotatably mounted on its inner wall. Each of the multiple pins (10) passes through and is rotatably connected to the first rib plate (2) and the second rib plate (3). Each of the multiple pins (10) has a snap ring (14) attached to the outer wall of one end.

7. A reinforced steel structure suitable for large spans as described in claim 4, characterized in that: A cross-shaped slot (13) is provided on one side of each of the multiple first pads (8) and the second pad (12), and a cross-shaped limiting block (11) is fixedly installed on the inner side of each of the multiple first clamping blocks (6) and the first pads (8).

8. A reinforced steel structure suitable for large spans as described in claim 2, characterized in that: A connecting plate (5) is fixedly installed on each side of the first clamping block (6) in a horizontal direction.

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