CN213625178U

CN213625178U - Multi-span bridge plate connecting structure

Info

Publication number: CN213625178U
Application number: CN202021627925.6U
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: 2021-07-06
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a multi-span bridge plate connecting structure, wherein the bridge plates are arched corrugated plates which are arranged side by side along the horizontal direction, and comprise longitudinal beams which are arranged between the arch feet of adjacent bridge plates and connecting pieces which are used for connecting the longitudinal beams and the bridge plates at two sides; the longitudinal beam comprises a vertical edge and a transverse edge, and the transverse edge is positioned below the arch foot; the connecting piece at least comprises a first folded edge and a second folded edge, the first folded edge is tightly attached and connected with the arch foot of the bridge plate, and the second folded edge is tightly attached and connected with the transverse edge. The utility model discloses a full assembled structure, the installation of easy job site all adopts bolted connection simultaneously, and it is convenient to make, has also avoided the tired scheduling problem of welding seam.

Description

Multi-span bridge plate connecting structure

Technical Field

The utility model relates to a connection structure especially relates to a bridge slab connection structure strides more.

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 slab connection structure is striden to intensity height, with low costs, simple to operate's many.

The technical scheme is as follows: the utility model discloses a multi-span bridge plate connecting structure, the bridge plate is an arch corrugated steel plate which is arranged side by side along the horizontal direction, comprising a longitudinal beam which is arranged between the arch feet of adjacent bridge plates and a connecting piece which is used for connecting the longitudinal beam and the bridge plates at two sides; the longitudinal beam comprises a vertical edge and a transverse edge, and the transverse edge is positioned below the arch foot; the connecting piece at least comprises a first folded edge and a second folded edge, the first folded edge is tightly attached and connected with the arch foot of the bridge plate, and the second folded edge is tightly attached and connected with the transverse edge.

The longitudinal beam is combined and comprises at least two channel steel and/or angle steel, and the vertical edges of the channel steel and/or angle steel are jointed and connected through bolts.

The combined longitudinal beam is provided with a sealing gasket.

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

And tension and compression members are arranged between the longitudinal beams and used for reinforcing the strength of the longitudinal beams.

And a backfill layer is arranged on the outer side of the bridge plate.

The end part of the second flange abuts against the vertical edge or has a gap with the vertical edge.

And cutting the arch springing of the bridge plate along the horizontal direction, wherein the arch springing abuts against the second folded edge, or the first folded edge is in a step shape.

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 discloses a full assembled structure, the installation of easy job site all adopts bolted connection simultaneously, and it is convenient to make, has also avoided the tired scheduling problem of welding seam.

(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 disturbance degree is small, and the stable structure of the bridge deck pavement layer is more favorable during year-round dynamic loading.

Drawings

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

fig. 2 is a schematic structural diagram of embodiment 1 of the present invention;

FIG. 3 is a schematic diagram of a bridge deck structure according to the present invention;

FIG. 4 is a schematic structural view of another bridge plate according to the present invention;

fig. 5 is a schematic structural diagram of embodiment 2 of the present invention;

Detailed Description

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

The multi-span connecting structure is arranged between adjacent bridge plates of a multi-span pipeline, and the multi-span pipeline is formed by two spans and more than two spans of bridge plates in parallel. 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 embodiment 1 includes a longitudinal beam 2 provided between the end edges of adjacent bridge panels 1 and a connecting member 3 for connecting the longitudinal beam 2 and the bridge panels 1 on both sides. The longitudinal beam is adopted to replace the original concrete buttress structure. The longitudinal beam 2 comprises a vertical edge 21 and a transverse edge 22 respectively positioned at the upper end and the lower end of the vertical edge 21, and the longitudinal beam 2 is made of section steel, such as channel steel, I-shaped section steel or L-shaped angle steel, so that when the transverse edge is positioned at the outer side of the pipeline, the inertia moment can be increased, and the connecting structure strength can be increased. One of the horizontal edges 22 is located below the arch foot and faces the inner side direction of the spliced pipeline, the vertical supports between the two bridge plates are connected below the horizontal edge, and the vertical supports are used for separating adjacent unit pipe joints and can be cylinders or walls. Tension and compression members can be arranged between the longitudinal beams 2 or between the longitudinal beams 2 and the bridge plate 1 to increase the strength of the spliced pipeline.

The bridge plate 1 and the transverse edge 22 are fixed by the connecting piece 3 and a plurality of bolts. In this embodiment, the connecting member 3 is disposed inside the bridge plate, i.e. in the direction of the inside of the spliced pipeline, and in other embodiments, may also be disposed outside the bridge plate 1. 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 connecting structure of the utility model does not limit the shape of the end edge of the bridge plate, and the end edge of the bridge plate can be cut along the direction of the vertical arch, and also can be cut into a right angle or cut into a right angle along the horizontal direction, as shown in figure 3; it may also be cut at an acute angle in the horizontal direction as shown in fig. 4.

The connecting piece 3 comprises a first folded edge 31 and a second folded edge 32 which are symmetrically arranged at two sides of the longitudinal beam and are used for connecting the longitudinal beam 2 and the bridge plate 1. The first flange 31 is attached to the bridge plate 1 and is connected to the bridge plate by means of a first screw 4, and the second flange 32 is attached to the transverse edge 22 of the longitudinal beam 2 and is connected by means of a second screw 5. When the bridge panel 1 is in a flat shape or when the end edge of the bridge panel is cut into the structure shown in fig. 4, the first folded edge 31 is in a step shape fitting the end edge, or the second folded edge 32 is extended and abuts against the second folded edge 32; when the bridge plate 1 is arched, the included angle between the first folded edge 31 and the second folded edge 32 is an obtuse angle, and the first folded edge 31 is in an arc shape attached to the arched bridge plate; when the bridge plate 1 is the arch buckled plate, first hem 31 is the arch buckled plate of this bridge plate of laminating, and simultaneously, the position of the tie point of first hem 31 and bridge plate, first bolt 4's position promptly is located the trough department of buckled plate.

In embodiment 2, as shown in fig. 5, the second folded edge 32 is connected to the lateral edge 22 disposed below the vertical edge, so that the space occupied by the entire structure can be reduced, and the connection structure can be made more compact. The rest of the structure is similar to embodiment 1.

In embodiment 3, the longitudinal beam 2 includes two unit longitudinal beams, i.e., two symmetrically disposed channel beams, L-shaped angle steels, and the like. In this embodiment, a gasket is provided between two cell stringers, and the remaining structure is similar to embodiment 1 or embodiment 2.

Claims

1. A multi-span bridge plate connecting structure is characterized by comprising longitudinal beams (2) arranged between arch feet of adjacent bridge plates (1) and connecting pieces (3) used for connecting the longitudinal beams (2) and the bridge plates on two sides, wherein the bridge plates (1) are arched corrugated steel plates arranged side by side along the horizontal direction; the longitudinal beam (2) comprises a vertical edge (21) and a transverse edge (22), and the transverse edge (22) is positioned below the arch foot; the connecting piece (3) at least comprises a first folding edge (31) and a second folding edge (32), the first folding edge (31) is tightly attached and connected with an arch foot of the bridge plate (1), and the second folding edge (32) is tightly attached and connected with the transverse edge (22).

2. The bridge plate connecting structure according to claim 1, wherein the longitudinal beam (2) is a combined type and comprises at least two channel steel and/or angle steel, and vertical edges of the channel steel and/or angle steel are jointed and connected through bolts.

3. The bridge panel connection according to claim 2, wherein the combined longitudinal beam (2) is provided with a gasket.

4. The bridge panel connection structure according to claim 1, wherein shear pins are welded and/or metal mesh is laid on the outside of the bridge panel (1).

5. The bridge panel connection according to claim 1, wherein tension/compression members are provided between the side members (2).

6. The bridge panel connection structure according to claim 1, wherein a backfill layer is provided on the outer side of the bridge panel (1).

7. The bridge panel connection structure according to claim 1, wherein the second folded edge (32) end abuts against the vertical side (21) or has a gap from the vertical side (21).

8. The bridge panel connection structure according to claim 1, wherein the arch of the bridge panel (1) is cut in a horizontal direction such that the arch abuts against the second flange (32) or the first flange (31) is stepped.