Steel structure net rack rod piece reinforcing device

Abstract

The utility model discloses a steel structure net rack rod piece reinforcing device which comprises reinforcing structures, and at least three reinforcing structures arranged in the axial direction of a net rack rod piece are evenly fixed in the circumferential direction of the net rack rod piece. The reinforcing structure comprises a rod body connecting plate, a conical head connecting plate and a reinforcing piece. The reinforcing device has the advantages that the reinforcing device can directly reinforce a net rack rod piece which does not meet the requirement for bearing capacity, rod piece replacement or overall net rack replacement is not needed, the cost is low, the period needed for rod piece reinforcement is short, construction operation is simple, and the overhaul efficiency can be effectively improved; the rod body connecting plates and the conical head connecting plates are arranged outside the net rack rod piece at intervals, welding operation with the original net rack rod piece belongs to interval welding, welding damage to the original net rack rod piece is not prone to being caused, and meanwhile welding stress concentration can be avoided.

Description

Technical field:

[0001] The utility model relates to the technical field of steel structure grid maintenance, specifically to a steel structure grid rod reinforcement device. Background technology:

[0002] As a lightweight and efficient large-span spatial structure, steel structure grids are widely used in various projects. However, due to various factors, the steel structure grids may have insufficient bearing capacity of rods, such as corrosion of rods due to improper anti-corrosion measures for a long time, or insufficient stability of rods due to small cross-sections caused by installation defects. The current national standards and specifications do not have unified technical standards for grid reinforcement. The existing reinforcement measures for insufficient grid strength are often limited to directly replacing rods or replacing the grid as a whole, with high maintenance costs; replacement of grid rods or replacement of the grid as a whole requires full support and unloading of the existing loads of the grid, which is difficult to construct and has a long construction period. Utility model content:

[0003] The utility model aims to provide a steel structure grid rod reinforcement device.

[0004] The utility model is implemented by the following technical scheme: a steel structure grid rod reinforcement device, which includes a reinforcement structure, at least three reinforcement structures arranged along the axial direction of the grid rod are evenly fixed in the circumferential direction of the grid rod; the reinforcement structure includes a rod body connecting plate, a cone head connecting plate and a reinforcement piece, a plurality of the rod body connecting plates arranged at intervals are fixed on the outer wall of the rod body of the grid rod, a cone head connecting plate is respectively fixed on the outer wall of the cone head at both ends of the grid rod, a plurality of the rod body connecting plates and two cone head connecting plates are arranged in the same radial plane of the grid rod; a reinforcement piece is respectively fixed between the two sides of a plurality of the rod body connecting plates and two cone head connecting plates.

[0005] Furthermore, the reinforcement member is an angle steel, one side plate of the angle steel is fixed to the side surfaces of a plurality of the rod body connecting plates and two of the cone head connecting plates, and the other side plate of the angle steel is arranged opposite to the grid rod member.

[0006] Advantages of the utility model: The reinforcement device of the utility model can directly reinforce the truss rods that do not meet the bearing capacity requirements without replacing the rods or the entire truss, with low cost, short period of rod reinforcement, simple construction operation, and can effectively improve maintenance efficiency; and the rod body connecting plates and cone head connecting plates are arranged at intervals on the outside of the truss rods, and the welding operations with the original truss rods are all interval welding, which is not easy to cause welding damage to the original truss rods, and can avoid welding stress concentration. Description of the drawings:

[0007] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0008] Figure 2 for Figure 1 AA section view.

[0009] Reinforcement structure 1, rod body connecting plate 11, cone head connecting plate 12, reinforcement member 13, side plate 131, grid member 2, rod body 21, cone head 22. Specific implementation method:

[0010] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0011] like Figure 1 and Figure 2 As shown, a steel structure grid rod reinforcement device comprises a reinforcement structure 1, at least three reinforcement structures 1 arranged along the axial direction of the grid rod 2 are evenly fixed in the circumferential direction of the grid rod 2; the reinforcement structure 1 comprises a rod body connecting plate 11, a cone head connecting plate 12 and a reinforcement member 13, a plurality of rod body connecting plates 11 are fixed to the outer wall of the rod body 21 of the grid rod 2, a cone head connecting plate 12 is respectively fixed to the outer wall of the cone head 22 at both ends of the grid rod 2, and the plurality of rod body connecting plates 11 and the two cone head connecting plates 12 are arranged in the same radial plane of the grid rod 2; a reinforcement member 13 is respectively fixed between the two sides of the plurality of rod body connecting plates 11 and the two cone head connecting plates 12; the reinforcement member 13 is an angle steel, a side plate 131 of the angle steel is fixed to the side surfaces of the plurality of rod body connecting plates 11 and the two cone head connecting plates 12, and the other side plate 131 of the angle steel is arranged opposite to the grid rod 2. The reinforcement member 13 is connected to the rod body 21 and the cone head 22 of the truss member 2 respectively through the rod body connecting plate 11 and the cone head connecting plate 12, so that the reinforcement member 13 and the truss member 2 can form a new lattice member. At the same time, by evenly arranging at intervals, the structural internal force at the cone head 22 can be evenly transmitted to the reinforcement member 13, and then transmitted to the cone head on the opposite side through the reinforcement member 13. In this process, the evenly arranged rod body connecting plate 11 and cone head connecting plate 12 can also serve as stiffening ribs of the reinforcement member 13 to play a strengthening role.

[0012] Reinforcement process:

[0013] 1) Clean the anti-corrosion and fire-proof coating on the surface of the grid rod 2 and ensure that the surface treatment of the rod meets the requirements for welding;

[0014] 2) First, the reinforcement structures 1 are located along the periphery of the grid rods 2. In this embodiment, three reinforcement structures 1 are provided, and the distance between two adjacent reinforcement structures 1 is 120°.

[0015] 3) After positioning is completed, the rod body connecting plate 11 and the cone head connecting plate 12 are welded. The rod body connecting plate 11 and the cone head connecting plate 12 are welded to the rod body 21 and the cone head 22 of the grid rod 2 by double-sided fillet welds respectively;

[0016] 4) After the welding of the shaft connecting plate 11 and the cone head connecting plate 12 is completed, the verticality of the shaft connecting plate 11 and the cone head connecting plate 12 is calibrated to ensure that the shaft connecting plate 11 and the cone head connecting plate 12 are on the same central axis and arranged along the central axis of the grid rod 2;

[0017] 5) After the calibration of the shaft connecting plate 11 and the cone head connecting plate 12 is completed, the reinforcement member 13 is welded to the shaft connecting plate 11 and the cone head connecting plate 12 in the form of a combination of butt welds and fillet welds;

[0018] 6) After completing the above steps, check the quality and appearance requirements of each connecting weld. After completing the inspection, apply anti-corrosion and fire-retardant paint.

[0019] The reinforcement device of the utility model can directly reinforce the grid rod 2 that does not meet the bearing capacity requirements without replacing the rod or the grid, with low cost, short period of rod reinforcement, simple construction operation, and can effectively improve the maintenance efficiency; and the rod body connecting plate 11, the cone head connecting plate 12 and the interval are arranged on the outside of the grid rod 2, and the welding operation with the original grid rod 2 is interval welding, which is not easy to cause welding damage to the original grid rod 2, and can avoid welding stress concentration; the reinforcement member 13 is an angle steel, one side plate of the angle steel is connected to the rod body connecting plate 11 and the cone head connecting plate 12, and the other side plate of the angle steel is arranged opposite to the grid rod 2, and an operating space is reserved for welding the inside of the angle steel with the rod body connecting plate 11 and the cone head connecting plate 12; since the welding can adopt water spray cooling operation during the entire reinforcement construction process, the construction process causes little damage to the original rod, so there is no need to unload the original structure, which greatly improves the construction efficiency.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A steel structure grid rod reinforcement device, characterized in that: It includes a reinforcement structure, at least three of which are evenly fixed in the circumferential direction of the grid rod and arranged along its axial direction; the reinforcement structure includes a rod body connecting plate, a cone head connecting plate and a reinforcement piece, a plurality of the rod body connecting plates arranged at intervals are fixed on the outer wall of the rod body of the grid rod, a cone head connecting plate is respectively fixed on the outer wall of the cone head at both ends of the grid rod, a plurality of the rod body connecting plates and two cone head connecting plates are arranged in the same radial plane of the grid rod; a reinforcement piece is respectively fixed between the two sides of a plurality of the rod body connecting plates and two cone head connecting plates.

2. A steel structure grid rod reinforcement device according to claim 1, characterized in that: The reinforcing member is an angle steel, one side plate of the angle steel is fixed to the side surfaces of a plurality of the rod body connecting plates and two of the cone head connecting plates, and the other side plate of the angle steel is arranged opposite to the grid rod member.

Images