CN218893948U

CN218893948U - Longitudinal and transverse rib connecting structure

Info

Publication number: CN218893948U
Application number: CN202221357970.3U
Authority: CN
Inventors: 孙天明; 姜松彪
Original assignee: Zhejiang Tunnel And Bridge Of China Waveform Steel Web Plate Co ltd
Current assignee: Zhejiang Tunnel And Bridge Of China Waveform Steel Web Plate Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2023-04-21
Anticipated expiration: 2032-05-31

Abstract

The utility model relates to the field of bridges and buildings, in particular to a longitudinal and transverse rib connecting structure in an orthotropic bridge deck structure, which comprises a top plate (1), longitudinal ribs (2) and transverse ribs (3), and further comprises a main connecting plate (4), wherein the main connecting plate (4) is arranged between the longitudinal ribs (2) and the transverse ribs (3), and the inner surface of the main connecting plate (4) is partially or completely attached to the outer wall of the longitudinal ribs (2). According to the utility model, the main connecting plate is arranged between the longitudinal ribs and the transverse ribs, the longitudinal ribs and the transverse ribs are not directly fixed, and when the longitudinal ribs are subjected to external acting force, the internal stress can be released through moderate sliding, so that the longitudinal ribs are prevented from being rigidly connected with the main connecting plate and the transverse ribs, and the fatigue crack among the longitudinal ribs, the top plate and the transverse partition plate caused by stress concentration of the longitudinal ribs can be effectively reduced or eliminated.

Description

Longitudinal and transverse rib connecting structure

Technical Field

The utility model relates to the field of bridges and buildings, in particular to a longitudinal and transverse rib connecting structure in an orthotropic bridge deck structure.

Background

In the traditional orthotropic bridge deck structure, the bridge can gradually generate fatigue damage in the long-term use process, and especially the current partial trucks also have overload and overload transportation conditions, so that the steel bridge deck plate bears larger load, and the damage of the overload trucks to the bridge is doubled and accelerated. When the steel bridge deck plate receives load, the load is transferred to the longitudinal ribs, and then the longitudinal ribs are transferred to the transverse ribs and the like, so that the fatigue cracking phenomena of the longitudinal ribs, the transverse partition plates and the bridge deck plate are all caused to different degrees. According to statistics, in the problem of fatigue cracking of the steel bridge deck structure, the cracks of welding the longitudinal ribs and the bridge deck are mainly used, and the cracks of the longitudinal ribs and the diaphragm plates are secondarily used. When the orthotropic bridge deck structure is seriously damaged, remedial maintenance treatment has to be performed again, which is time-consuming and laborious.

Disclosure of Invention

Aiming at the problem that the longitudinal ribs, the tops and the diaphragm plates in the traditional orthotropic steel bridge deck structure in the prior art are easy to fatigue crack, the utility model provides the longitudinal and transverse rib connecting structure which enables the longitudinal ribs to moderately slide in the longitudinal direction by arranging the main connecting plates between the longitudinal ribs and the transverse ribs and adopting non-rigid connection between the longitudinal ribs and the transverse ribs, reduces or eliminates stress concentration of the longitudinal ribs, effectively reduces crack generation of the longitudinal ribs, the top plates and the diaphragm plates and fatigue crack generation between the longitudinal ribs and the bridge deck top plates.

In order to solve the technical problems, the utility model is solved by the following technical scheme:

the utility model provides a vertically and horizontally rib connection structure, includes roof, longitudinal rib and transverse rib, still includes the main connecting plate, and the main connecting plate sets up between longitudinal rib and transverse rib, and the inner surface of main connecting plate is laminated with the outer wall part or the whole of longitudinal rib. The outer surface of the main connecting plate is fixedly connected with the transverse rib. In this patent, through the laminating of main connecting plate and the outer wall part or the whole of longitudinal rib, under the prerequisite that satisfies and give certain degree of freedom to the longitudinal rib, have certain constraint nature again to the longitudinal rib. Because the longitudinal section of the main connecting plate is matched with the shape of the rib wall of the longitudinal rib, when the longitudinal rib releases excessive stress and deforms to a greater extent, the outer wall of the longitudinal rib directly contacts, rubs and slides with the main connecting plate, so that the stress is released, and the main connecting plate also plays an effective role in supporting and limiting the longitudinal rib, so that the excessive deformation of the longitudinal rib is avoided. The longitudinal rib is a variant U rib or a large v rib, and comprises two non-parallel rib walls and a bottom arc which are symmetrical, wherein the corner radius of the bottom arc is more than 110mm, so that the longitudinal rib is an open longitudinal rib which is connected with the top plate to form a closed opening. The utility model discloses a broken through traditional longitudinal rib and transverse rib three-dimensional constraint, the unable effective release of stress, and traditional transverse rib web trompil is to the vulnerable structure of its self weakening, creatively put forward constraint transverse bridge to with perpendicular to, and to adopting upper portion rotation fulcrum district fixed to the longitudinal bridge, lower part and bottom are cabled for the gliding structure of permission, and adopt laminating or tight constraint to take shape of another two directions again, fundamentally has played the welding fracture common problem of traditional longitudinal rib bottom and transverse rib.

The longitudinal ribs and the transverse ribs are indirectly connected through the main connecting plates. The longitudinal ribs are fixedly connected with the main connecting plate through welding or bolts, and the transverse ribs are fixedly connected with the main connecting plate through welding or bolts.

Preferably, the main connecting plate is formed by bending a flat steel plate, and the main connecting plate is fixedly connected with the transverse rib. The main connecting plate is formed by bending a flat steel plate, has simple structure, high production efficiency and low cost, the cross section shape of the main connecting plate is similar to the U-shaped cross section shape of the longitudinal rib, and the main connecting plate is arranged at the outer edge of the longitudinal rib and can support the outer edge of the longitudinal rib. The main connecting plate is perpendicular to the plane of the transverse rib plate, and the main connecting plate is connected with the transverse rib through welding, so that the method is convenient and quick.

Preferably, the main connecting plate and the transverse rib are integrated, the main connecting plate is formed by flanging the transverse rib, and an included angle between the main connecting plate and the transverse rib main plate is 90 degrees. The outer wall of the rib body of the longitudinal rib is directly in surface connection with a main connecting plate formed by the flanging part of the transverse rib. The main connecting plate is formed by directly flanging the base material of the transverse rib web, so that the main connecting plate is not required to be positioned during installation, and welding is not required between the main connecting plate and the transverse rib, so that the welding work is reduced, the installation cost is reduced, and the installation efficiency is improved; furthermore, the main connecting plate is made of a material integrated with the transverse rib, so that the welding structure is more stable than the structural stability, is not easily influenced by welding quality, and is not easy to crack and deform.

Preferably, the main connecting plate is in bearing or fitting connection with the bottom arc section of the longitudinal rib. The main connecting plate is in non-fixed connection with the bottom arc section of the longitudinal rib, so that the main connecting plate is allowed to slide and deform to release stress when the longitudinal rib is stressed, but the main connecting plate plays roles of encircling and supporting the bottom arc section of the longitudinal rib, so that the excessive deformation of the longitudinal rib can be effectively avoided, and the stability of the whole structure is improved.

Preferably, the main connecting plate is welded to the upper section of the longitudinal rib wall. The outer edge of the upper section of the main connecting plate is welded with the upper section of the rib wall of the longitudinal rib, so that the upper section of the main connecting plate is fixed with the longitudinal rib, but the lower section and the circular arc section of the rib wall of the longitudinal rib are connected in a fitting way, so that the longitudinal rib has a certain degree of freedom, and when the longitudinal rib is subjected to external stress, the internal stress can be released through sliding, but the excessive deformation is not caused.

Preferably, the main connecting plate is welded or attached to the middle section of the longitudinal rib wall. The main connecting plate is connected with the middle section of the rib wall of the longitudinal rib through welding, and the main connecting plate is connected with the upper section and the lower arc section of the rib wall of the longitudinal rib in a fitting way, so that the two ends of the longitudinal rib and the bottom arc section have certain degrees of freedom, the supporting effect on the longitudinal rib is achieved, the longitudinal rib can be subjected to moderate stress release, the risk of large deformation of the longitudinal rib is reduced, and the stability of the whole steel bridge surface structure is improved. The main connecting plate is fixedly connected with the upper section of the longitudinal rib wall if the main connecting plate is in fit connection with the middle section of the longitudinal rib wall, and the same effect can be achieved.

Preferably, the main connecting plate is formed by bending a flat steel plate, the cross section of the main connecting plate is in a shape of a Chinese character 'yi', and the longitudinal section of the main connecting plate is in a shape of a U and is matched with the appearance of the longitudinal rib.

Preferably, the main connecting plate comprises a joint section jointed with the longitudinal rib and a connecting section perpendicular to the joint section, and the cross section of the main connecting plate is L-shaped or T-shaped. The cross section of the main connecting plate is L-shaped, the whole main connecting plate is bent into a U shape similar to the longitudinal rib in shape, one surface of the L-shaped main connecting plate, namely the attaching section, is attached to the longitudinal rib, and the other surface of the L-shaped main connecting plate, namely the connecting section, is connected with the transverse rib. Compared with the straight-shaped main connecting plate, the L-shaped main connecting plate has stronger structural strength, and only the vertical section panel and the transverse rib are required to be attached when the L-shaped main connecting plate is installed, so that the longitudinal rib is not required to be precisely assembled with the transverse rib, the fault-tolerant space is provided, and the installation is extremely convenient. Then the welding or the bolt fixing is adopted, positioning is not needed, and the installation is faster and more convenient.

The cross section of the main connecting plate is T-shaped, the whole main connecting plate is bent into a U shape similar to the longitudinal rib in shape, the straight-line-shaped surface at the upper part of the T-shaped main connecting plate, namely the joint section, is in joint connection with the longitudinal rib, and the vertical section, namely the connecting section, is connected with the transverse rib. The longitudinal ribs do not need to be precisely assembled with the transverse ribs, so that the device has fault-tolerant space and is extremely convenient to install. Compared with the L-shaped main connecting plate, the T-shaped main connecting plate has better structural strength after being connected. The effect of the T-shaped steel on the reinforcement of the edge of the transverse rib web plate is equivalent to the effect that the transverse rib web plate does not open the longitudinal rib penetrating holes, and the T-shaped steel supports the longitudinal ribs to extend to two sides by taking the transverse rib web plate as a center point, so that the T-shaped steel is more symmetrical and balanced than the L-shaped steel.

Preferably, the middle part of the main connecting plate is not fully attached to the longitudinal rib, and the maximum distance of the fully attached part is within 5 MM. A certain fault-tolerant space is reserved between the middle part of the main connecting plate and the longitudinal rib, so that the longitudinal rib can have a certain deformation activity space when being deformed, the longitudinal rib is prevented from being directly hard-abutted to the main connecting plate and hard-connected, the longitudinal rib can effectively obtain the bearing limit of the main connecting plate when being deformed to release stress, and the structure is more stable and reliable.

According to the utility model, the main connecting plate is arranged between the longitudinal ribs and the transverse ribs, the longitudinal ribs and the transverse ribs are not directly fixed, and when the longitudinal ribs are subjected to external acting force, the internal stress can be released through moderate flexibility, so that the longitudinal ribs are prevented from being in hard contact with the main connecting plate and the transverse ribs, and fatigue cracks among the longitudinal ribs, the top plate and the transverse partition plates caused by stress concentration of the longitudinal ribs can be effectively reduced or eliminated.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present utility model.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic structural diagram of embodiment 2 of the present utility model.

Fig. 4 is a schematic structural diagram of embodiment 3 of the present utility model.

Fig. 5 is an exploded view of fig. 3.

Fig. 6 is a schematic structural diagram of embodiment 4 of the present utility model.

Fig. 7 is a schematic structural diagram of a T-shaped main connection board according to the present utility model.

Fig. 8 is a schematic structural view of an L-shaped main connecting plate according to the present utility model.

Wherein 1-roof, 2-longitudinal rib, 3-transverse rib, 4-main connection board, 5-transverse rib reinforcing plate, 21-roof hem, 41-laminating section, 42-connection section.

Detailed Description

The utility model is described in further detail below with reference to fig. 1 to 8 and the detailed description of the embodiments:

example 1

The longitudinal and transverse rib connecting structure comprises a top plate 1, longitudinal ribs 2, transverse ribs 3 and main connecting plates 4, wherein the main connecting plates 4 are arranged between the longitudinal ribs 2 and the transverse ribs 3, and the inner surfaces of the main connecting plates 4 and the outer wall parts of the longitudinal ribs 2. Because in traditional bridge, the longitudinal rib adopts direct welded connection with the transverse rib more, and the longitudinal rib is because bridge deck roof passes through welding or bolt fixed connection, when bridge deck roof receives the load, the stress can be transmitted to the longitudinal rib from bridge deck roof. When the longitudinal rib is stressed, transverse or longitudinal deflection is generated, if the transverse rib completely surrounds the longitudinal rib for welding and fixing, stress concentration is generated at the welding part of the longitudinal rib and the transverse rib, particularly at the bottom arc section part of the longitudinal rib, the deformation of the longitudinal rib is larger, and the stress concentration and the welding crack are more likely to occur. The longitudinal rib is a variant U rib or a large v rib, and comprises two non-parallel rib walls.

Therefore, in the traditional bridge deck structure, apple holes are also arranged on the arc section part of the bottom plate, which is partially designed at the joint of the transverse rib and the longitudinal rib, and the aim is to provide a certain degree of freedom for the arc section at the bottom of the longitudinal rib. However, the apple holes are arranged on the transverse ribs, so that the degree of freedom of the circular arc section at the bottom of the longitudinal ribs can be improved, the longitudinal ribs can be deformed and stress released to a certain extent, but partial stress still damages the parts of the middle and lower parts of the longitudinal ribs, which are directly welded with the transverse ribs, so that the welding fatigue phenomenon is generated; secondly, apple hole or hollow out construction for the circular arc section in longitudinal rib bottom is in complete free state, if the stress that the circular arc section concentrated in longitudinal rib bottom is too big, leads to the longitudinal rib to produce the deformation easily, thereby influences whole longitudinal and transverse rib connection structure and bridge deck structure's stability.

The main connecting plate 4 is formed by bending a flat steel plate, and the main connecting plate 4 is fixedly connected with the transverse rib 3. The main connecting plate 4 is connected with the transverse rib 3 through welding, and the main connecting plate 4 is connected with the upper section part of the rib wall of the longitudinal rib 2 through welding. The main connecting plate 4 is welded with the upper section of the rib wall of the longitudinal rib 2, and the main connecting plate 4 is attached and connected with the lower section of the rib wall of the longitudinal rib 2.

The main connecting plate 4 is in bearing or fitting connection with the bottom arc section of the longitudinal rib 2. The purpose of the method is to allow the longitudinal ribs 2 to deform to a certain extent and release stress, but the longitudinal ribs 2 can only be deformed within a certain range and are not disordered due to the limiting effect of the main connecting plate 4, so that the stability of the whole structure is improved.

Example 2

The utility model provides a vertically and horizontally rib connection structure, as shown in fig. 3, includes roof 1, longitudinal rib 2 and transverse rib 3, still includes main connecting plate 4, and main connecting plate 4 sets up between longitudinal rib 2 and transverse rib 3, and the interior surface of main connecting plate 4 is laminated with the whole of longitudinal rib 2.

In this embodiment, the main connecting plate 4 and the transverse rib 3 are integrated, the main connecting plate 4 is formed by flanging the transverse rib 3, and an included angle between the main connecting plate 4 and the main board of the transverse rib 3 is 90 degrees. The cross section of the longitudinal rib 2 is vertical to the flanging part of the transverse rib 3, and the outer wall of the rib body of the longitudinal rib 2 is directly in veneer connection with the main connecting plate 4 formed by the flanging part of the transverse rib 3. The main connecting plate 4 is formed by directly flanging the web base material of the transverse rib 3, so that the main connecting plate 4 is not required to be positioned during installation, and welding is not required between the main connecting plate 4 and the transverse rib 3, so that the welding work is reduced, the installation cost is reduced, and the installation efficiency is improved; further, the main connection plate 4 is formed of a material integral with the cross rib 3, so that the welded structure is more stable than the structural stability, and is less susceptible to the influence of welding quality, and is less likely to crack and deform.

The main connecting plate 4 is welded with the middle section of the rib wall of the longitudinal rib 2. The main connecting plate 4 is in non-welding connection or lamination connection with the lower section of the rib wall of the longitudinal rib 2 and the rib bottom of the longitudinal rib 2. Therefore, the lower section of the main connecting longitudinal rib 2 and the space between the rib bottom and the main connecting plate 4 are in a non-fixed free state, when the longitudinal rib is subjected to external stress, the internal stress can be released through sliding, and the cracks of the longitudinal rib caused by the problems of stress concentration and the like are reduced and avoided.

Example 3

As shown in fig. 4 and 5, this embodiment differs from embodiment 1 in that: the longitudinal rib 2 is provided with an outward turning edge 21, and the longitudinal rib 2 is fixedly connected with the top plate 1 through bolts. The longitudinal rib 2 is provided with an everting fold edge 21 structure, so that the structural strength of the longitudinal rib is greatly improved.

In this embodiment, the main connecting plate 4 is formed by bending a flat steel plate, the cross section of the main connecting plate 4 is in a shape of a Chinese character ' yi ', and the longitudinal section is in a shape of a U '. The middle part of the main connecting plate 4 is not fully attached to the longitudinal rib 2, and the maximum distance of the fully attached part is 4MM. A certain fault-tolerant space is reserved between the middle part of the main connecting plate 4 and the longitudinal rib 2, so that the longitudinal rib 2 can have a certain deformation activity space when being deformed, the direct hard collision and hard connection of the longitudinal rib 2 and the main connecting plate 4 are avoided, the longitudinal rib 2 can effectively obtain the bearing limit of the main connecting plate 4 when being deformed to release stress, and the structure is more stable and reliable.

Example 4

As shown in fig. 6 and 7, the cross section of the main connecting plate 4 in this embodiment is T-shaped. The whole U-shaped that buckles into of main connecting plate 4 and is close with the rib 3 shape, main connecting plate 4 include with the laminating section 41 of rib 2 laminating and with laminating section vertically linkage segment 42, in the installation, the "one" font panel of T type main connecting plate 4 upper portion is laminating section 41 and is passed rib 2 and transverse rib 4, the "one" font surface of the upper portion of T type main connecting plate 4 is laminating section 41 and is connected with rib 3 laminating, linkage segment 42 and transverse rib 3 fixed connection. Compared with the L-shaped main connecting plate, the T-shaped main connecting plate 4 has better structural strength after being connected. The effect of the T-shaped steel on the reinforcement of the edge of the transverse rib web plate is equivalent to the effect that the transverse rib web plate does not open the longitudinal rib penetrating holes, and the T-shaped steel supports the longitudinal ribs to extend to two sides by taking the transverse rib web plate as a center point, so that the T-shaped steel is more symmetrical and balanced than the L-shaped steel.

Example 5

As shown in fig. 6 and 8, the cross section of the main connection plate 4 is L-shaped. The main connecting plate 4 is the angle steel and is buckled into the U-shaped that is close with the longitudinal rib 3 shape through the whole, and main connecting plate 4 includes laminating section 41 and the linkage segment 42 perpendicular with laminating section laminating 2, and in the installation, laminating section 41 on the main connecting plate 4 of L type passes longitudinal rib 2 and transverse rib 4, and laminating section 41 is connected with the laminating of longitudinal rib 2, and the linkage segment 42 of L type main connecting plate 4 is connected with transverse rib 3.

Compared with the straight-shaped main connecting plate 4, the L-shaped main connecting plate has stronger structural strength, and the L-shaped main connecting plate is installed by only attaching the vertical section panel, namely the connecting section 42, to the transverse rib 3 and then fixing the connecting section with the transverse rib 3 through welding or bolts without positioning, so that the installation is faster and more convenient.

In summary, the foregoing description is only of the preferred embodiments of the present utility model, and all equivalent changes and modifications made in accordance with the claims should be construed to fall within the scope of the utility model.

Claims

1. The utility model provides a vertically and horizontally rib connection structure, includes roof (1), longitudinal rib (2) and transverse rib (3), its characterized in that: the novel steel plate structure further comprises a main connecting plate (4), wherein the main connecting plate (4) is arranged between the longitudinal ribs (2) and the transverse ribs (3), and the inner surface of the main connecting plate (4) is partially or completely attached to the outer wall of the longitudinal ribs (2).

2. A longitudinal and transverse rib connecting structure according to claim 1, characterized in that: the main connecting plate (4) is formed by bending a flat steel plate, and the main connecting plate (4) is fixedly connected with the transverse rib (3).

3. A longitudinal and transverse rib connecting structure according to claim 1, characterized in that: the main connecting plate (4) and the transverse rib (3) are integrated, the main connecting plate (4) is formed by flanging the transverse rib (3), and an included angle between the main connecting plate (4) and a main board of the transverse rib (3) is 90 degrees.

4. A longitudinal and transverse rib connecting structure according to claim 1, characterized in that: the main connecting plate (4) is in bearing or fitting connection with the bottom arc section of the longitudinal rib (2).

5. A longitudinal and transverse rib connecting structure according to claim 1, characterized in that: the main connecting plate (4) is welded with the upper section of the rib wall of the longitudinal rib (2).

6. A longitudinal and transverse rib connecting structure according to claim 1, characterized in that: the main connecting plate (4) is welded or attached to the middle section of the rib wall of the longitudinal rib (2).

7. A longitudinal and transverse rib connecting structure according to claim 1, characterized in that: the main connecting plate (4) is formed by bending a flat steel plate, the cross section of the main connecting plate (4) is in a shape of a Chinese character ' yi ', and the longitudinal section of the main connecting plate is in a shape of a U '.

8. A longitudinal and transverse rib connecting structure according to claim 1, characterized in that: the main connecting plate (4) comprises a joint section (41) jointed with the longitudinal rib and a connecting section (42) perpendicular to the joint section, and the cross section of the main connecting plate (4) is L-shaped or T-shaped.

9. A longitudinal and transverse rib connecting structure according to claim 1, characterized in that: the middle part of the main connecting plate (4) is not fully attached to the longitudinal rib (2), and the maximum distance of the fully attached part is within 5 MM.