CN204455798U - Wind-resistance of Bridges tuyere - Google Patents

Abstract

The utility model relates to a bridge wind-resistant tuyere, which comprises a shell, and a reinforced structural plate is arranged inside the shell, and the reinforced structural plate divides the inner space of the shell into a plurality of filling spaces, and the filling space is filled with filling bodies; the shell and reinforced structural panels are composite materials; the cross-section of the shell is triangular, one side of the triangle is a vertical side perpendicular to the bridge deck, the remaining two sides are inclined to the bridge deck, and the angle between the side close to the bridge deck surface and the vertical side is < close to The angle between one side of the lower surface of the deck and the vertical side. The bridge wind-resistant tuyere of the utility model has a triangular streamline shape in section, which can significantly improve the wind-resistant stability of the bridge, effectively change the aerodynamic force acting on the bridge, and reduce the flutter of the bridge as a whole; the main structure is a composite material, It reduces the weight of the equipment itself and improves the body strength, increases the overall corrosion resistance, and reduces the maintenance and maintenance of the equipment in the later period.

Description

Bridge wind nozzle

technical field

The utility model relates to a bridge wind resistance nozzle.

Background technique

Steel box girder, also known as steel box girder, is a commonly used structural form of long-span bridges. A general steel box girder is mainly composed of a main girder and an air nozzle. The air nozzle is a key component of a steel box girder to reduce wind vibration, and plays a vital role in reducing wind vibration in the entire steel box girder structure.

The bridge air nozzle is a design measure taken to reduce the resonance caused by strong winds on the bridge deck structure. It is an integral part of the bridge structure, especially for super-large bridges. It is an important part of the auxiliary structure that cannot be ignored in the design. The effect of wind on bridges is a very complex phenomenon. The natural characteristics of wind, the dynamic performance of structures and the interaction between wind and bridges all have constraints on it. According to different types, the effects of wind on bridges are generally divided into Static action and dynamic action in two parts.

The traditional tuyere is an integral steel structure, which is difficult to weld and the assembly accuracy is poor, which increases the welding time of the final assembly and prolongs the manufacturing cycle of the beam section; and the steel structure is exposed to the outside, and it is easy to corrode and lose or weaken Original anti-wind effect.

Utility model content

The technical problem to be solved by the utility model is: in order to overcome the deficiencies of the installation part and easy corrosion of the existing steel structure tuyere, the utility model provides a bridge wind-resistant tuyere.

The technical solution adopted by the utility model to solve the technical problem is: a bridge wind-resistant tuyere, including a shell, the inside of the shell is provided with a reinforced structural plate, and the reinforced structural plate divides the internal space of the shell into A plurality of filling spaces, the filling spaces are filled with fillers; the shell and the reinforced structural plate are made of composite materials; the cross section of the shell is triangular, one side of the triangle is a vertical side perpendicular to the bridge deck, and the remaining The two sides are inclined to the bridge deck, and the angle α between the side close to the upper surface of the bridge and the vertical side a > the angle β between the side close to the lower surface of the bridge deck and the vertical side a.

The filling body is one of polyurethane foam, polyvinyl chloride foam, carbon foam, PEI foam, PMI foam, Balsa wood, paulownia wood, Chinese fir and strong core felt.

A plurality of reinforced structural plates are arranged inside the housing, and the reinforced structural plates form a spatial geometric structure.

The multiple reinforced structural plates are of an integral structure.

To facilitate filling of the filling body, the top corners opposite the vertical sides are chamfered.

The upper and lower parts of the vertical sides are respectively provided with installation ribs, the bridge deck is clamped between two installation ribs, and the vertical sides are fixed to the sides of the bridge deck.

Bolt holes for fixing to the bridge deck are opened on the installation rib.

The upper part and the lower part of the vertical side respectively have an extending side, and the vertical side and the extending side are both fixed to the side of the bridge deck.

Bolt holes for fixing to the bridge deck are opened on the extending side.

The beneficial effects of the utility model are that the bridge wind-resistant tuyere of the utility model has a cross-section of a triangular streamline shape with a flat top and a steep bottom, which can significantly improve the wind-resistant stability of the bridge and effectively change the aerodynamic force acting on the bridge. Reduce the overall flutter of the bridge; the main structure is made of composite materials, which reduces the weight of the equipment itself and improves the body strength, increases the overall corrosion resistance, and reduces the maintenance and maintenance of the equipment in the later period.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a structural schematic diagram of the first embodiment of the bridge wind resistance nozzle of the present invention.

Fig. 2 is a structural schematic diagram of the second embodiment of the bridge wind resistance nozzle of the present invention.

Fig. 3 is a schematic view of the installation structure of the first embodiment of the present utility model.

Fig. 4 is a schematic diagram of the installation structure of the second embodiment of the present invention.

In the figure 1, shell, 2, filling body, 3, reinforced structural plate, 4, extended edge, 5, bolt hole, 6, installation rib, a, vertical edge, 100, air nozzle, 200, bridge deck, 201 , Upper surface, 202, lower surface, 300, bolt.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

As shown in Figure 1, a bridge wind-resistant tuyere 100 of the present utility model includes a housing 1, a plurality of reinforced structural plates 3 are arranged inside the housing 1, and the reinforced structural plates 3 form a space of an integrated structure Geometric structure, the reinforced structural plate 3 divides the internal space of the shell 1 into several filling spaces, and the filling space is filled with filling bodies 2; the cross section of the shell 1 is triangular, and one side of the triangle is connected to the bridge deck. 200 perpendicular to the vertical side a, the remaining two sides are inclined to the bridge deck 200, and the angle α between the side close to the upper surface 201 of the bridge deck 200 and the vertical side a > the angle α between the side close to the lower surface 202 of the bridge deck 200 and the vertical side a beta. The upper and lower parts of the vertical side a have extension sides 4 respectively, and both the vertical side a and the extension side 4 are fixed to the side of the bridge deck 200 , and the extension side 4 is provided with bolt holes 5 for fixing to the bridge deck. As shown in FIG. 3 , the extension edge 4 and the side surface of the bridge deck 200 are fixed by bolts 300 .

The shell 1 and the reinforced structure plate 3 are composite materials, the composite material can be glass fiber composite material, and the matrix material can be unsaturated resin, isophthalic resin, ophthalmic resin, vinyl resin, epoxy resin, double One of phenol A resin and reactive resin, and the reinforcing material can be one of glass fiber, carbon fiber, aramid fiber, and ultra-high molecular weight polyethylene fiber. The filling body 2 is one of polyurethane foam, polyvinyl chloride foam, carbon foam, PEI foam, PMI foam, Balsa wood, Paulownia wood, Chinese fir and strong core felt.

As shown in Figure 2, the upper and lower parts of the vertical side a are also provided with installation ribs 6 respectively, and the bridge deck 200 is clamped between the two installation ribs 6, and the vertical side a and the side surface of the bridge deck 200 For fixing, bolt holes 5 for fixing with the bridge deck 200 are opened on the installation rib 6 . As shown in FIG. 4 , during installation, the installation rib 6 can be clamped on one side of the bridge deck 200 first, and then the bolt 300 is screwed on the installation rib 6 to fix the installation rib 6 and the bridge deck 200 . Due to the existence of the installation rib 6, the fixing of the tuyere 100 is more firm and reliable.

In order to conveniently fill the filling body, vacuum introduction is generally adopted, therefore, the top corner opposite to the vertical side a can be chamfered. As shown in Figures 1-2, the top corner opposite to the vertical side a is chamfered.

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (9)

1. a Wind-resistance of Bridges tuyere, it is characterized in that: comprise housing (1), described housing (1) inside is provided with and strengthens structural slab (3), the inner space of housing (1) is separated into some packing spaces by described enhancing structural slab (3), is filled with obturator (2) in described packing space; Described housing (1) and enhancing structural slab (3) are composite material; The cross section of described housing (1) is triangle, described leg-of-mutton while be the vertical edges (a) vertical with bridge floor (200), residue both sides and bridge floor (200) tilt, and close bridge floor (200) upper surface (201) with the angle α > of vertical edges a near bridge floor (200) soffit (202) while with the angle β of vertical edges a.

2. Wind-resistance of Bridges tuyere as claimed in claim 1, is characterized in that: described obturator (2) is polyurethane foam, polyvinyl chloride foam, carbon foam, PEI foam, PMI foam, Balsa wood, paulownia wood, China fir and the one by force in core felt.

3. Wind-resistance of Bridges tuyere as claimed in claim 1, is characterized in that: described housing (1) inside is provided with polylith and strengthens structural slab (3), described enhancing structural slab (3) composition space geometry body structure.

4. Wind-resistance of Bridges tuyere as claimed in claim 3, is characterized in that: described polylith strengthens structural slab (3) and is structure as a whole.

5. Wind-resistance of Bridges tuyere as claimed in claim 1, is characterized in that: the drift angle relative with described vertical edges (a) is with chamfering.

6. Wind-resistance of Bridges tuyere as claimed in claim 1, it is characterized in that: the upper and lower of described vertical edges (a) is respectively equipped with installs rib (6), described bridge floor (200) is fastened on two pieces and installs between rib (6), and described vertical edges (a) is fixed with the side of bridge floor (200).

7. Wind-resistance of Bridges tuyere as claimed in claim 6, is characterized in that: described installation rib (6) offers for the bolt hole (5) fixing with bridge floor (200).

8. Wind-resistance of Bridges tuyere as claimed in claim 1, it is characterized in that: the upper and lower of described vertical edges (a) has extension edge (4) respectively, described vertical edges (a) and extension edge (4) are all fixed with the side of bridge floor (200).

9. Wind-resistance of Bridges tuyere as claimed in claim 8, is characterized in that: described extension edge (4) offers for the bolt hole (5) fixing with bridge floor (200).