CN218667082U - Limiting structure of bridge deck - Google Patents

Abstract

The utility model relates to the technical field of bridges, and discloses a position-limiting structure of a bridge deck. The position-limiting structure includes a positioning piece and a first space-limiting piece, the positioning piece is fixed to the bridge deck, the first space-limiting piece is fixed to the crossbeam of the bridge, and the positioning pieces include interconnected and all along the bridge The first vertical plate and the first transverse plate arranged longitudinally, the first limiting member includes a chute structure, the chute structure has a chute space arranged longitudinally inside, and the top of the chute structure is provided with a communication The chute space and the limit slot hole along the longitudinal direction of the bridge, the first vertical plate of the positioning part is located in the limit slot hole, the first transverse plate of the positioning part is located in the chute space, the chute structure The inner end of the chute structure is connected with the beam, and the outer end of the limiting slot hole of the chute structure is provided with a second limiting member. The limit structure of the bridge deck can ensure that the displacement of the bridge deck is in a reasonable and appropriate space, and prevent the damage of the bridge deck during the later operation process from endangering the safe operation of the bridge.

Description

Limiting structure of bridge deck

technical field

The utility model relates to the technical field of bridges, in particular to a position-limiting structure of a bridge deck.

Background technique

The steel truss upper deck structure of the flexible cable bridge is a commonly used bridge girder structure in bridges. During the operation of the bridge deck on the steel truss girder, the bridge deck is not welded and connected with the steel truss as a whole. Usually, the steel truss is erected first. After laying the combined bridge deck on the truss girder, most of the time, rubber bearings are placed on the steel truss girder as the contact support between the girder body and the bridge deck; For simple flexible suspension bridges, slipping often occurs in the horizontal and lateral positions. If there is no limit measure structure for the girder body and steel truss girder, it will cause misalignment of the bridge deck relative to the steel truss girder, and the support will also fall off. This phenomenon will cause damage to the bridge deck, which will pose a safety hazard to the use safety of the flexible cable bridge and the durability of the bridge deck in the later stage, and affect the later operation safety of the structure.

Utility model content

The technical problem to be solved by the utility model is to provide a limit structure for the bridge deck, which ensures that the displacement of the bridge deck is in a reasonable and appropriate space, and prevents the bridge deck from being damaged in the later stage of operation and endangering the safe operation of the bridge.

The position-limiting structure of the bridge deck disclosed by the utility model includes a positioning piece and a first position-limiting piece. It includes a first vertical plate and a first transverse plate that are connected to each other and are arranged longitudinally along the bridge. The top of the chute structure is provided with a limiting slot hole that communicates with the chute space and along the longitudinal direction of the bridge. The first vertical plate of the positioning member is located in the limiting slot hole, and the first transverse plate of the positioning member is located in the chute In the space, the inner end of the chute structure is connected to the beam, and the outer end of the limiting slot hole of the chute structure is provided with a second limiting member.

Preferably, the positioning member is a first I-steel, the top flange plate of the first I-steel is connected to the bridge deck, and the web of the first I-steel is the first vertical plate , the web plate at the bottom of the first I-beam is the first transverse plate.

Preferably, the first limiting member includes two second I-beams arranged side by side, the gap between the top flange plates of the two second I-beams forms the limiting slot, and the two second I-beams The space between the webs of the I-beams forms the chute space, the inner ends of the two second I-beams are connected with the beams of the bridge, and the outer ends of the top flange plates of the two second I-beams A first connecting plate is connected between the ends as the second limiting member.

Preferably, a second connecting plate is connected between the outer end and the inner end of the two second I-shaped steel bottom flange plates of the first limiting member.

Preferably, the thickness of the first connecting plate is consistent with the thickness of the top flange plate of the second I-beam.

Preferably, the first I-beam and the second I-beam are of the same type.

Preferably, the gap between the top flange plates of the two second I-beams of the first limiting member is 5 mm to 15 mm larger than the web thickness of the first I-beam.

Preferably, a sliding plate is arranged between the first transverse plate and the chute structure.

Preferably, the slide plate is made of polytetrafluoroethylene.

The beneficial effects of the utility model are: the utility model sets the positioning parts and the limit parts to limit the longitudinal bridge of the bridge deck to the fixed position, and at the same time, the horizontal bridge of the bridge deck is also limited upwards, so as to ensure The deflection of the bridge deck only allows its proper longitudinal bridge displacement, which greatly reduces the longitudinal displacement and lateral deformation of the bridge deck during operation, and ensures that the bridge deck and steel truss girders form a whole, in a flexible During the deformation process of the bridge, it can always be deformed together, so as to improve the limit deformation of the entire bridge deck, and meet the requirements of the structural safety of the bridge and the durability of the bridge deck. The structure of the limit structure is simple and reasonable, and it is easy to use.

Description of drawings

Fig. 1 is a schematic diagram of the elevation of the limit structure when the bridge deck of the embodiment of the utility model is in operation;

Fig. 2 is a schematic front view of the position-limiting structure;

Fig. 3 is a top view structural diagram of the limit structure of the bridge deck in operation according to the embodiment of the utility model

Fig. 4 is a schematic plan view of the position-limiting structure.

Reference signs: second I-beam 1 , first I-beam 2 , second connecting plate 3 , beam 4 , support 5 , bridge deck 6 , first connecting plate 7 , slide plate 8 .

Detailed ways

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

As shown in Figures 1-4, the position-limiting structure of the bridge deck 6 of the present utility model includes a positioning piece and a first spacer, the positioning piece is fixed with the bridge deck 6, and the first spacer is connected to the bridge The crossbeam 4 is fixed, the positioning member includes a first vertical plate and a first transverse plate that are connected to each other and are arranged longitudinally along the bridge, the first limiting member includes a chute structure, and the inside of the chute structure There is a chute space arranged in the longitudinal direction, the top of the chute structure is provided with a limiting slot hole which communicates with the chute space and along the longitudinal direction of the bridge, the first vertical plate of the positioning member is located in the limiting slot hole, the The first transverse plate of the positioning member is located in the space of the chute, the inner end of the chute structure is connected to the beam 4, and the outer end of the limiting slot hole of the chute structure is provided with a second limiting member.

The limiting structures are usually used in pairs, and the two limiting structures are respectively arranged on both sides of the bridge. The first limiting member is fixed to the beam 4 of the bridge, and the positioning member is fixed to the bridge deck 6. The fixing method is preferably welding. In a few cases, high-strength bolt connections can also be used. The chute space and the limiting slot of the first limiting member can limit the lateral movement of the positioning member, thereby limiting the lateral movement of the bridge deck 6 relative to the crossbeam 4, and the positioning member can move a certain distance along the limiting slot. Thus, the bridge deck 6 can move longitudinally for a certain distance relative to the crossbeam 4, and at the same time, the second limiting member can limit the distance that the positioning member moves in the limiting slot, thereby meeting the expansion and contraction requirements of the bridge deck 6. The purpose of its limit is to perfectly meet the longitudinal and transverse limit of the steel-concrete composite bridge deck 6 between the flexible cable bridges, to ensure the safety of the bridge deck 6 during operation, and there will be no sliding and large vibrations, causing Overall safety of bridge structures.

The positioning part, the first limiting part and the second limiting part can be processed and manufactured by themselves according to the needs, and can be welded by plates and profiles. In the preferred embodiment of the application, the positioning part is the first I-beam 2 , the top flange plate of the first I-beam 2 is connected to the bridge deck 6, the web of the first I-beam 2 is the first vertical plate, and the bottom of the first I-beam 2 The web is the first transverse plate. The I-beam has high strength, and the original shape of the I-beam can be directly used to simplify the processing. The first I-beam 2 is usually welded on the bottom steel plate of the bridge deck 6, and is preferably welded securely by means of surrounding welding. Similarly, in another preferred embodiment of the present application, the first limiting member includes two second I-beams 1 arranged side by side, and the top flange plate between the two second I-beams 1 The gap forms the limit slot, the space between the webs of the two second I-beams 1 forms the chute space, and the inner ends of the two second I-beams 1 are in contact with the beam 4 of the bridge. To connect, a first connecting plate 7 is connected between the outer ends of the top flange plates of the two second I-beams 1 as the second limiting member.

In order to ensure the rigidity and integrity of the first limiting member, in a preferred embodiment, the outer and inner ends of the two second I-beam 1 bottom flange plates of the first limiting member are connected with The second connecting plate 3 . Specifically, before the first I-beam 2 of the bridge deck 6 is fixed, the two second I-beams 1 are welded first, but the first connecting plate 7 of the upper flange of the two second I-beams 1 cannot be welded. , the lower flanges of the two I-beams can be welded into a whole with the second connecting plate 3 to meet the rigidity requirements, and after the first I-beam 2 passes through the gap between the two side-by-side second I-beams 1 , and then the welding of the first connecting plate 7 of the upper flange is completed, and finally the bridge deck 6 and the first I-beam 2 are welded and fixed to achieve the purpose of limiting the bridge deck 6. The position of the first connecting plate 7 needs to take into account the length of the first I-beam 2 and the gap between the supports 5 of the bridge.

In a preferred embodiment of the present application, the thickness of the first connecting plate 7 is consistent with the thickness of the top flange plate of the second I-beam 1 .

The thickness of the top flange plate of the second I-beam 1 is the same as that of the first connecting plate 7, which can better ensure its quality in welding, and the welding seam can also meet the longitudinal deformation force of the bridge deck 6 to achieve its Limitation purpose.

The first I-beam 2 and the second I-beam 1 are preferably of the same type. It is convenient for later procurement and welding, and the overall rigidity can also be better matched in terms of force. In addition, the gap between the web plate of the second I-beam 1 and the lower flange plate of the first I-beam 2 can be equal to the first The gap between the top flange plate of the second I-beam 1 and the web plate of the first I-beam 2 can be simultaneously limited at both places, so as to achieve a better force bearing effect. As far as the width of the specific gap is concerned, in the preferred embodiment of the present application, the gap between the top flange plates of the two second I-beams 1 of the first limiting member is larger than that of the first I-beam 2 The thickness of the web is 5mm to 15mm, and the best is 10mm.

There will be relative sliding between the first transverse plate and the chute structure, that is, there will be relative sliding between the first I-beam 2 and the second I-beam 1, so in order to reduce friction and prevent jamming, the first A slide plate 8 is arranged between the transverse plate and the chute structure. The sliding plate 8 can be made of materials such as copper and polytetrafluoroethylene, among which polytetrafluoroethylene can be used as a preferred solution because of its high corrosion resistance. Teflon can be pasted on the first I-beam 2 or the second I-beam 1 to avoid falling off.

Claims (9)

1. Limiting structure of decking, its characterized in that, including setting element and first locating part, the setting element is fixed mutually with decking (6), first locating part is fixed mutually with crossbeam (4) of bridge, the setting element includes interconnect and all along the vertical first vertical board and the first transverse plate that set up of bridge, first locating part includes the spout structure, the inside spout space that has along vertical setting of spout structure, spout structure top has been seted up intercommunication spout space and has been followed the fore-and-aft spacing slotted hole of bridge, the first vertical board of setting element is located spacing slotted hole, the first transverse plate of setting element is located the spout space, the inner of spout structure is connected with crossbeam (4), the setting of the spacing slotted hole outer end of spout structure has the second locating part.

2. The bridge deck confining structure as recited in claim 1, wherein: the setting element is first I-steel (2), the top flange board of first I-steel (2) is connected with decking (6), the web of first I-steel (2) is first vertical board, the web of first I-steel (2) bottom is first horizontal board.

3. The bridge deck confining structure as claimed in claim 1 or 2, wherein: the first limiting part comprises two second I-shaped steels (1) arranged side by side, a gap between top flange plates of the two second I-shaped steels (1) forms the limiting slotted hole, a space between web plates of the two second I-shaped steels (1) forms the chute space, inner end parts of the two second I-shaped steels (1) are connected with a cross beam (4) of a bridge, and a first connecting plate (7) is connected between outer end parts of the top flange plates of the two second I-shaped steels (1) to serve as the second limiting part.

4. The bridge deck confining structure as recited in claim 3, wherein: and a second connecting plate (3) is connected between the outer end and the inner end of the bottom flange plate of the two second I-shaped steels (1) of the first limiting part.

5. The limiting structure of the bridge deck according to claim 3, wherein: the thickness of the first connecting plate (7) is consistent with that of the top flange plate of the second I-shaped steel (1).

6. The bridge deck confining structure as recited in claim 1, wherein: the positioning piece is a first I-shaped steel (2), a top flange plate of the first I-shaped steel (2) is connected with a bridge deck (6), a web plate of the first I-shaped steel (2) is a first vertical plate, and a web plate at the bottom of the first I-shaped steel (2) is a first transverse plate;

the first limiting part comprises two second I-beams (1) which are arranged side by side, a gap between top flange plates of the two second I-beams (1) forms the limiting slotted hole, a space between web plates of the two second I-beams (1) forms the sliding chute space, inner end parts of the two second I-beams (1) are connected with a cross beam (4) of the bridge, and a first connecting plate (7) is connected between outer end parts of the top flange plates of the two second I-beams (1) and serves as the second limiting part;

the first I-shaped steel (2) and the second I-shaped steel (1) are of the same type.

7. The limiting structure of the bridge deck according to claim 5, wherein: the gap between the top flange plates of the two second I-beams (1) of the first limiting part is 5-15 mm larger than the web plate thickness of the first I-beam (2).

8. The bridge deck confining structure as recited in claim 1, wherein: a sliding plate (8) is arranged between the first transverse plate and the sliding groove structure.

9. The bridge deck confining structure as recited in claim 8, wherein: the sliding plate (8) is made of polytetrafluoroethylene.

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