A large-span steel structure support structure

Abstract

This utility model relates to a support structure for large-span steel structures, including a large-span horizontal beam and auxiliary support structures for the beam. The auxiliary support structures are arranged opposite each other on the bottom side of the large-span horizontal beam, and their side ends are fixed to the bottom side of the large-span horizontal beam by fixing bolts. Each auxiliary support structure consists of a fixed end plate, a flexible high-pressure cylinder, a cylinder piston connecting plate, a main support horizontal arm, an auxiliary support horizontal arm, a horizontal beam end plate, a horizontal arm connecting plate, and a connecting pin. This utility model optimizes the setting of the support structure for large-span steel structures, changes the traditional support structure design, and improves it into a structure that occupies less space, has a simpler structure, and is easier to connect. Furthermore, the structure has good seismic resistance and thermal expansion and contraction resistance, reducing the problem of structural damage to steel structures caused by stress, and is suitable for widespread use.

Description

Technical Field

[0001] This utility model relates to the field of steel structures, and in particular to a large-span steel structure support structure. Background Technology

[0002] In large-span steel structures, the supporting structure is the core for transferring loads (self-weight, live load, wind load, and seismic load). Traditional supporting structures are directly fixed to the ground, but this affects the ground space. If a suspended load-bearing method is used, a lot of space will protrude from the top of the steel structure, which is very inconvenient for structures with steel roofs. Moreover, if the entire steel structure is rigidly connected, stress fracture can easily occur during vibration. Steel structures are exposed to changes in the environment day and night and seasons, and thermal expansion and contraction will occur under different temperature conditions. Therefore, without expansion joints for thermal expansion and contraction, the steel structure will also be damaged. To address this, a large-span steel structure supporting structure is designed. Utility Model Content

[0003] The purpose of this utility model is to provide a large-span steel structure support structure to solve the above-mentioned technical problems. To achieve the above purpose, this utility model adopts the following technical solution: A large-span steel structure support structure includes a large-span beam and auxiliary support structures for the beam. The auxiliary support structures for the beam are arranged opposite each other on the bottom side of the large-span beam, and the top side of the auxiliary support structures for the beam is fixed to the bottom side of the large-span beam by fixing bolts.

[0004] Based on the above technical solution, the auxiliary support structure of the crossbeam consists of a fixed end plate, a flexible high-pressure cylinder, a cylinder piston connecting plate, a main support crossarm, an auxiliary support crossarm, a crossbeam end plate, a crossarm connecting plate, and a connecting pin. The flexible high-pressure cylinder is fixed to the side of the fixed end plate, and the cylinder piston connecting plate is connected inside the flexible high-pressure cylinder. Three sets of connecting grooves are provided on the main support crossarm; two sets of connecting grooves are located at both ends of the main support crossarm, and one set of connecting grooves is located on the main support crossarm closer to one end. Connecting shaft holes are provided on both sides of the three sets of connecting grooves on the main support crossarm. Two sets of auxiliary support crossarms are provided. Both ends of the crossarm are provided with connecting shaft holes. The bottom ends of the two sets of auxiliary support crossarms are connected to two sets of adjacent connecting grooves, and both sets of auxiliary support crossarms are connected to the connecting shaft holes by connecting pins. The crossarm connecting plate is set on the bottom side of the crossbeam end plate, and both the crossarm connecting plate and the cylinder piston connecting plate are provided with connecting shaft holes. The side end of the main support crossarm is connected to the connecting shaft hole of the cylinder piston connecting plate by connecting pins. The crossarm connecting plate is connected to the connecting shaft hole on the auxiliary support crossarm by connecting pins. Both the fixed end plate and the crossbeam end plate are provided with fixing holes. The crossbeam end plate is fixed to the bottom side of the large span crossbeam by fixing bolts.

[0005] Based on the above technical solution, the connecting grooves on the main support crossarms in the two sets of crossbeam auxiliary support structures are arranged oppositely. The length of the main support crossarm is less than that of the large-span crossbeam. The auxiliary support crossarm and the main support crossarm are inclined towards the side where the two sets of main support crossarms are close to each other. The connection between the crossarm connecting plate and the auxiliary support crossarm, the connection between the auxiliary support crossarm and the main support crossarm, and the connection between the cylinder piston connecting plate and the main support crossarm can all be rotated slightly with the connecting pin as the axis.

[0006] Compared with the prior art, the present invention has the following advantages: The present invention optimizes the setting of the support structure of large-span steel structure, changes the traditional support structure design, and improves it into a structure that occupies less space, has a simple structure and simple connection. Moreover, the structure has good seismic resistance and thermal expansion and contraction resistance, reducing the problem of structural damage to steel structure caused by stress. It is suitable for widespread use. Attached Figure Description

[0007] Figure 1 This is a general appearance diagram of the present utility model.

[0008] Figure 2 This is a schematic diagram showing the disassembled structure of this utility model.

[0009] Figure 3 This is a detailed schematic diagram showing the disassembly of the single-sided crossbeam auxiliary support structure of this utility model.

[0010] In the diagram: 1. Span beam, 2. Auxiliary support structure for beam, 3. Fixing bolt, 4. Fixing end plate, 5. Flexible high-pressure cylinder, 6. Cylinder piston connecting plate, 7. Main support arm, 8. Auxiliary support arm, 9. Beam end plate, 10. Arm connecting plate, 11. Connecting pin, 12. Connecting groove, 13. Connecting shaft hole, 14. Fixing hole. Detailed Implementation

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0012] A large-span steel structure support structure includes a large-span beam 1 and a beam auxiliary support structure 2. The beam auxiliary support structure 2 is arranged opposite to each other on the bottom side of the large-span beam 1, and the top side of the beam auxiliary support structure 2 is fixed to the bottom side of the large-span beam 1 by fixing bolts 3.

[0013] The above describes the main quantities of the auxiliary support structure 2 for the crossbeams, as well as the connection relationships and positions for the large-span crossbeams 1. (Corresponding appendices are attached.) Figure 1 and attached Figure 2 .

[0014] The auxiliary support structure 2 of the crossbeam consists of a fixed end plate 4, a flexible high-pressure cylinder 5, a cylinder piston connecting plate 6, a main support crossarm 7, an auxiliary support crossarm 8, a crossbeam end plate 9, a crossarm connecting plate 10, and a connecting pin 11. The flexible high-pressure cylinder 5 is fixed to the side of the fixed end plate 4, and the cylinder piston connecting plate 6 is connected inside the flexible high-pressure cylinder 5. The main support crossarm 7 has three sets of connecting grooves 12, two sets of connecting grooves 12 at both ends of the main support crossarm 7, and one set of connecting grooves 12 on the main support crossarm 7 closer to one end. Connecting shaft holes 13 are provided on both sides of the main support crossarm 7 of the three sets of connecting grooves 12. Two sets of auxiliary support crossarms 8 are provided, and both ends of the two sets of auxiliary support crossarms 8 are provided with connecting shaft holes 13. The bottom ends of the two sets of auxiliary support cross arms 8 are connected to two sets of adjacent connecting grooves 12, and both sets of auxiliary support cross arms 8 are connected to the connecting shaft hole 13 by connecting pins 11. The cross arm connecting plate 10 is set on the bottom side of the cross beam end plate 9, and the cross arm connecting plate 10 and the cylinder piston connecting plate 6 are both provided with connecting shaft holes 13. The side end of the main support cross arm 7 is connected to the connecting shaft hole 13 of the cylinder piston connecting plate 6 by connecting pins 11. The cross arm connecting plate 10 is connected to the connecting shaft hole 13 on the auxiliary support cross arm 8 by connecting pins 11. The fixed end plate 4 and the cross beam end plate 9 are both provided with fixing holes 14. The cross beam end plate 9 is fixed to the bottom side of the large span cross beam 1 by fixing bolts 3.

[0015] The above details the breakdown of the auxiliary support structure 2 for the crossbeam, as well as its connection and fixing positions. (See attached diagram.) Figure 3 .

[0016] The connecting grooves 12 on the main support crossarms 7 in the two sets of crossbeam auxiliary support structures 2 are arranged oppositely. The length of the main support crossarms 7 is less than that of the large-span crossbeam 1. The auxiliary support crossarms 8 and the main support crossarms 7 are inclined towards each other. The connection between the crossarm connecting plate 10 and the auxiliary support crossarms 8, the connection between the auxiliary support crossarms 8 and the main support crossarms 7, and the connection between the cylinder piston connecting plate 6 and the main support crossarms 7 can all be rotated slightly with the connecting pin 11 as the axis.

[0017] The above describes the specific connection relationship and tilt angle of the main support crossarm 7 and the auxiliary support crossarm 8 in the auxiliary support structure 2 of the crossbeam. (See attached diagram.) Figure 2 and attached Figure 3 .

[0018] In practical applications, the fixed end plate 4 is fixed to the columns, walls, or other positions at both ends of the large-span beam 1 to allow the auxiliary support structure 2 to share the downward weight of the large-span beam 1. The specific principle is that when the large-span beam 1 deforms due to temperature changes, coupled with its own mass, it will bend downwards in the middle section. If there is insufficient support under the bent section, it is easy for the bent section to break (assuming the large-span beam 1 is always fixed at both ends and cannot move towards either end due to deformation). Because the auxiliary support arm 8 has a certain angle of inclination, it transfers the downward pressure of the large-span beam 1 to the main support arm 7. The two ends of the main support arm 7 are connected to the flexible high-pressure cylinder 5 and the cylinder piston connecting plate 6. This design allows the main support arm 7 to push the cylinder piston connecting plate 6 towards both ends, compressing the gas inside the flexible high-pressure cylinder 5, thus achieving a soft contact and soft connection. In addition, when the steel structure vibrates as a whole, except for the two ends which are fixed, all other component connection nodes are connected by connecting pins 11. The connecting pins only restrict the relative displacement and do not restrict the rotation angle. By rotating at a certain angle, the irregular vibration is transmitted to the flexible high-pressure cylinders 5 and cylinder piston connecting plates 6 at both ends for absorption, thereby reducing and mitigating the problems of stress brittle fracture and large deformation that occur in the large-span beam 1 due to irregular vibration.

[0019] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A large-span steel structure support structure, characterized in that, It includes a large-span crossbeam (1) and a crossbeam auxiliary support structure (2). The crossbeam auxiliary support structure (2) is set opposite to the bottom side of the large-span crossbeam (1), and the top side of the crossbeam auxiliary support structure (2) is fixed to the bottom side of the large-span crossbeam (1) by fixing bolts (3).

2. The large-span steel structure support structure according to claim 1, characterized in that, The auxiliary support structure (2) of the crossbeam consists of a fixed end plate (4), a flexible high-pressure cylinder (5), a cylinder piston connecting plate (6), a main support cross arm (7), an auxiliary support cross arm (8), a crossbeam end plate (9), a cross arm connecting plate (10), and a connecting pin (11). The flexible high-pressure cylinder (5) is fixed to the side of the fixed end plate (4), and the cylinder piston connecting plate (6) is connected inside the flexible high-pressure cylinder (5). The main support cross arm (7) has three sets of connecting grooves (12). Two sets of connecting grooves (12) are located at both ends of the main support cross arm (7), and one set of connecting grooves (12) is located on the main support cross arm (7) closer to one end. The main support cross arm (7) on both sides of the three sets of connecting grooves (12) has connecting shaft holes (13). The auxiliary support cross arm (8) has two sets. The two sets of auxiliary support cross arms (8) have connecting shaft holes (13) at both ends. The bottom ends of the two sets of auxiliary support cross arms (8) are connected to two sets of adjacent connecting grooves (12), and the two sets of auxiliary support cross arms (8) are connected to the connecting shaft hole (13) by connecting pins (11). The cross arm connecting plate (10) is set on the bottom side of the cross beam end plate (9), and the cross arm connecting plate (10) and the cylinder piston connecting plate (6) are both provided with connecting shaft holes (13). The side end of the main support cross arm (7) is connected to the connecting shaft hole (13) of the cylinder piston connecting plate (6) by connecting pins (11). The cross arm connecting plate (10) is connected to the connecting shaft hole (13) on the auxiliary support cross arm (8) by connecting pins (11). The fixed end plate (4) and the cross beam end plate (9) are both provided with fixed holes (14). The cross beam end plate (9) is fixed to the bottom side of the large span cross beam (1) by fixing bolts (3).

3. The large-span steel structure support structure according to claim 2, characterized in that, The connecting grooves (12) on the main support crossarm (7) in the two sets of crossbeam auxiliary support structures (2) are arranged oppositely. The length of the main support crossarm (7) is less than that of the large span crossbeam (1). The auxiliary support crossarm (8) and the main support crossarm (7) are inclined towards each other. The connection between the crossarm connecting plate (10) and the auxiliary support crossarm (8), the connection between the auxiliary support crossarm (8) and the main support crossarm (7), and the connection between the cylinder piston connecting plate (6) and the main support crossarm (7) can all be connected by a small-amplitude rotation with the connecting pin (11) as the axis.

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