CN212956124U

CN212956124U - Combined multi-span bridge plate connecting structure

Info

Publication number: CN212956124U
Application number: CN202021628673.9U
Authority: CN
Inventors: 战福军
Original assignee: Nanjing Lianzhong Engineering Technology Co ltd
Current assignee: Nanjing Lianzhong Engineering Technology Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-04-13
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a modular multispan bridge plate connection structure, two stride and two bridge plate more than striding set up side by side along the horizontal direction, the bridge plate is the arch buckled plate, still including locating the longeron between the adjacent bridge plate arch foot, and the longeron includes the roof beam and locates the base of roof beam below, the vertical cross-section of roof beam is the flute profile, and the top has opening outwards, and the interior hem laminating of roof beam opening both sides is connected the arch foot of adjacent bridge plate, and the inside shear force nail that is equipped with of roof beam is covered and is filled the concrete. The utility model is a steel and concrete combined structure, has high strength, and is internally provided with a reinforcing mesh and a shear pin, thereby further improving the strength and the structural stability; when the arched corrugated plate is stressed, the horizontal force generated by the arched corrugated plate presses the concrete in the beam crown, so that the capability of bearing the internal stress of each direction of the concrete is increased.

Description

Combined multi-span bridge plate connecting structure

Technical Field

The utility model relates to a connection structure especially relates to a modular multispan bridge plate connection structure.

Background

The general steel structure bridge plate, most horizontal structure amount of deflection is big, and current connection structure intensity can not satisfy the engineering actual demand, and the upper portion of bridge floor is the layer of mating formation, often works under the dynamic amount of deflection state, consequently can lead to the cracked condition of layer of mating formation serious, and in addition, horizontal structure is unfavorable for save material.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a bridge plate connection structure that intensity is high, with low costs, simple to operate.

The technical scheme is as follows: the utility model discloses a combination formula multispan bridge plate connection structure, two stride and two bridge plate more than striding set up side by side along the horizontal direction, the bridge plate is the arch buckled plate, still including locating the longeron between the adjacent bridge plate arch foot, and the longeron includes the roof beam and locates the base of roof beam below, the roof beam cross-section is the flute profile, and the top has opening outwards, and the interior hem laminating of roof beam opening both sides is connected the arch foot of adjacent bridge plate, and the inside shear force nail and the filling concrete that is equipped with of roof beam is covered.

And a reinforcing mesh is arranged inside the beam crown.

The base includes a web and a wing. The web plate is a vertical corrugated steel plate.

And two ends of the wing plate are provided with tubular structures, prestressed steel strands or prestressed steel bars are arranged in the tubular structures, and concrete is filled in gaps in the tubes.

And the outer side of the bridge plate is welded with a scissors nail and/or paved with a metal net.

And a tension and compression component is arranged between the longitudinal beams.

Has the advantages that: compared with the prior art, the utility model has the advantages of it is as follows showing:

(1) the utility model is a steel and concrete combined structure, has high strength, and is internally provided with a reinforcing mesh and a shear pin, thereby further improving the strength and the structural stability; when the bridge plate is stressed, the horizontal force generated by the bridge plate presses the concrete in the beam crown, so that the capability of bearing the internal stress of each direction of the concrete is increased.

(2) The bridge plate is an arched corrugated plate, so that the stress effect is good, the strength is high, the plate thickness is reduced, the material is saved, and the overall cost of the pipeline is reduced; the flexibility is small, and the stable structure of the bridge deck pavement layer is more favorable when the load is moved all the year round.

(3) The web plate is a vertical corrugated steel plate, so that the strength is high, the weight is light, and the material is saved under the same strength.

(4) The whole structure is an assembly structure, is easy to process, transport and construct, and avoids the problem of welding line fatigue of a welding connection structure.

(5) The wing plate can be provided with prestress, the strength of the whole structure is increased, the deflection of the longitudinal beam is reduced, and the span of the longitudinal beam can be increased.

(6) The utility model discloses a base has the combination of web pterygoid lamina to form, and the roof beam crown pressurized can the advantage of the interior concrete atress of full play roof beam crown.

Drawings

FIG. 1 is a schematic diagram of a conventional multi-span structure;

fig. 2 is a schematic structural diagram of the present invention.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

The utility model discloses a multispan connection structure installs between the adjacent bridge plate of multispan pipeline, and the multispan pipeline is striden by two and is formed side by the bridge plate more than two strides. The connecting structure is used for connecting adjacent bridge plates of pipelines, and the adjacent bridge plates belong to different pipeline cabins. In the conventional multi-span structure, when the bridge slab is arched, the force application points on both sides are disposed on the elongated concrete buttresses, as shown in fig. 1. And embedding anchor bolts on the concrete buttress, using angle steel as an intermediate connecting piece, and connecting the angle steel with the corrugated steel plate through bolts. Through the summary and research of the engineering cases of the applicant for many years, the following defects exist in the prior art: (1) the number of bolt holes on the corrugated steel plate and the angle steel is large, and the joint cannot be prevented from leakage; (2) the strip-shaped buttress is cast-in-situ concrete, the construction period is long, the strip-shaped buttress generally needs to be used as an expanded foundation, and the foundation requirement is high.

As shown in fig. 2, the structure of the present invention includes a longitudinal beam disposed between the end edges of the adjacent bridge plates 1, and the longitudinal beam is used to replace the original concrete buttress structure. The longitudinal beam comprises a beam crown 2 and a base arranged below the beam crown 2. Tension and compression members can be arranged between the longitudinal beams or between the longitudinal beams and the bridge plate so as to increase the strength of the spliced pipeline.

The beam crown 2 is of a groove structure with an opening 22, the opening faces the outside of the pipeline and can be a square pipe or a round pipe, and concrete 5 is poured in the pipe. The openings 22 are provided with one length which completely covers the length of the beam crown 2, facilitating the pouring of concrete and the setting of bolts. The inner folded edges 21 at two sides of the opening 22 of the girder crown are connected with the bridge plates 1 at two sides through bolts 6. The inside reinforcing bar net that is equipped with of beam crown 2, the inside scissors nail 8 that still is equipped with of beam crown 2 forms the assembly with the concrete. The shear pins 8 are provided at the bottom in the crown 2, i.e. on the side facing the web 3. In this embodiment, the crown 2 is disposed on the inner side of the bridge plate 1, i.e. in the inner direction of the spliced pipeline, and in other embodiments, may also be disposed on the outer side of the bridge plate 1. The utility model discloses a connection structure does not restrict to the shape of bridge plate end limit, and bridge plate end limit both can follow perpendicular arched direction cutting, also can cut for the right angle or cut for the right angle along the horizontal direction, can also follow the horizontal direction cutting and be the acute angle.

The bridge plate 1 is arched, and the top edge 21 of the crown is in an arc shape attached to the arched bridge plate; when the bridge plate 1 is the arch buckled plate, the roof beam crown topside 21 is the buckled plate of this arch bridge plate of laminating, and simultaneously, the position of the tie point of roof beam crown topside 21 and bridge plate, the position of bolt 6 promptly is located the trough department of buckled plate. And (3) welding shear nails and/or paving metal nets on the outer side of the bridge plate 1, and pouring concrete to form a combined structure of the bridge plate and the concrete.

The base comprises a web 3 and a wing 4 perpendicular to each other, the wing 4 being parallel to the crown 2. The base is towards the inboard direction of the pipeline that splices into, and the vertical braces between two bridge plates is connected to pterygoid lamina 4 below, and vertical braces is used for separating adjacent unit tube coupling, can be cylinder or wall body etc.. Both sides of the wing plate 4 can be provided with tubular structures 9, prestressed steel strands or prestressed steel bars 91 are arranged in the tubular structures, and concrete is filled in gaps in the tubes to improve the supporting performance of the base.

Claims

1. The utility model provides a modular bridge plate connection structure strides more than two, two stride and two bridge plate (1) of striding set up side by side along the horizontal direction, its characterized in that, bridge plate (1) are the arch buckled plate, still including locating the longeron between adjacent bridge plate (1) arch foot, the longeron includes crown (2) and locates the base of crown (2) below, crown (2) cross-section is the flute profile, and the top has opening (22) outwards, and the interior hem (21) laminating of crown (2) opening both sides is connected the arch foot of adjacent bridge plate (1), and crown (2) inside is equipped with shear force nail (8) and filled concrete (5).

2. The combined type multi-span bridge slab connection structure according to claim 1, wherein a reinforcing mesh is provided inside the crown (2).

3. The modular multi-span bridge deck connection structure of claim 1, wherein the base comprises a web (3) and a wing (4).

4. The combined type multi-span bridge panel connection structure according to claim 3, wherein the web (3) is a vertical corrugated steel plate.

5. The combined type multi-span bridge plate connecting structure according to claim 3, wherein tubular structures (9) are arranged at two ends of the wing plate (4), prestressed steel strands or prestressed steel bars (91) are arranged in the tubular structures (9), and concrete is filled in gaps in the tubes.

6. The combined type multi-span bridge plate connection structure according to claim 1, wherein shear pins are welded and/or metal mesh is laid on the outer side of the bridge plate (1).

7. The combined type multi-span bridge plate connecting structure according to claim 1, wherein tension and compression members are provided between the longitudinal beams.