CN214005366U

CN214005366U - Steel box girder structure for double-arch double-cable-side S-shaped steel bridge

Info

Publication number: CN214005366U
Application number: CN202022493796.2U
Authority: CN
Inventors: 贡献; 顾垚; 顾珏; 赵世坤; 张海
Original assignee: Jiangyin Zhuangxin Steel Products Co ltd
Current assignee: Jiangyin Zhuangxin Steel Products Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-08-20
Anticipated expiration: 2030-11-02

Abstract

The utility model discloses a steel box girder structure that two cable face S shaped steel bridges of two archs used, including the steel box girder body, the steel box girder body includes roof and bottom plate, and the roof is fixed to be set up in the top of bottom plate, and the bottom of roof is fixed and is provided with roof longitudinal stiffening rib, and the top of bottom plate is fixed and is provided with bottom plate longitudinal stiffening rib, and fixedly connected with a plurality of evenly distributed' S first web between roof and the bottom plate, the utility model relates to a steel box girder structure that two cable face S shaped steel bridges of two archs, roof longitudinal stiffening rib, bottom plate longitudinal stiffening rib, web transverse stiffening rib, web longitudinal stiffening rib and diaphragm stiffening rib make form vertically and horizontally staggered steel structure net between roof, bottom plate, web and the diaphragm, and the supporting structure of being convenient for stereotype is more stable; the finish rolling threaded steel bars, the back pressure stiffening ribs, the back pressure diaphragm plates, the tie bar lower backing plates and the spiral bars are convenient for the connection of the steel box girder body with the pier and the table top, and the spiral bars can buffer the pressure of the steel box girder on the pier and the table top.

Description

Steel box girder structure for double-arch double-cable-side S-shaped steel bridge

Technical Field

The utility model relates to a building field specifically is a steel case girder construction that two cable face S shaped steel bridges of two arches were used.

Background

The steel box girder is also called steel plate box girder, and is a common structural form of a large-span bridge. The steel box girder is generally used on a bridge with a large span, is called a steel box girder because the shape is like a box, is supported by a large-span cable, has the span of hundreds of meters and thousands of meters, is generally manufactured and installed by being divided into a plurality of beam sections, has the characteristics of wide and flat shape on the cross section, has the height-width ratio of about 1:10, is generally formed by connecting a top plate, a bottom plate, a web plate, a transverse partition plate, a longitudinal partition plate, a stiffening rib and the like in a full welding mode, and plays an important role in the building process of the bridge.

The stiffening ribs among the top plate, the bottom plate, the web plate and the diaphragm plate of the existing steel box girder structure are single, the internal structure of the steel box girder is not stable enough, and the connection and the positioning of the steel box girder structure, the bridge pier and the table top are inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steel box girder structure that two cable face S shaped steel bridges of two archs were used to solve the stiffening rib singleness between the steel box girder structure roof that proposes among the above-mentioned background art, bottom plate, web and the cross slab, steel box girder inner structure is stable inadequately, the inconvenient problem of steel box girder structure and the connection location of pier and mesa.

In order to achieve the above object, the utility model provides a following technical scheme: a steel box girder structure for a double-arch double-cable-side S-shaped steel bridge comprises a steel box girder body, wherein the steel box girder body comprises a top plate and a bottom plate, the top plate is fixedly arranged at the top of the bottom plate, the bottom of the top plate is fixedly provided with a top plate longitudinal stiffening rib, a bottom plate longitudinal stiffening rib is fixedly arranged at the top of the bottom plate, a plurality of first webs which are uniformly distributed are fixedly connected between the top plate and the bottom plate, a web transverse stiffening rib is fixedly connected at one end of each of the plurality of first webs, one side of each of the plurality of first webs is fixedly connected with one side of the web longitudinal stiffening rib, the bottom plate includes middle circular arc bottom plate and both ends bottom plate, two second webs of middle circular arc bottom plate and the junction fixedly connected with of both ends bottom plate, two fixed cross slab that is provided with between the second web, two the middle part of both ends bottom plate all is fixed with finish rolling twisted steel.

As a preferred technical scheme of the utility model, two the equal fixedly connected with diaphragm stiffening rib in one side of diaphragm.

As a preferred technical scheme of the utility model, two one side that interior both ends bottom plate was passed to finish rolling twisted steel's one end alternates with the middle part of back pressure stiffening rib and is connected, two the inside of back pressure stiffening rib is all fixed and is provided with two back pressure cross slabs, two the one end of back pressure stiffening rib is the fixed lacing wire lower bolster that is provided with all, two the first lacing wire backing plate of the equal fixedly connected with of one end of lacing wire lower bolster.

As the utility model discloses a preferred technical scheme, two the other end of finish rolling twisted steel all is equipped with the spiral muscle through second lacing wire backing plate cover.

As a preferred technical scheme of the utility model, a plurality of evenly distributed's connecting hole, a plurality of is all seted up at the both ends of steel box girder body the equal fixedly connected with reinforcing bar in inside of connecting hole.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the top plate longitudinal stiffening rib, the bottom plate longitudinal stiffening rib, the web plate transverse stiffening rib, the web plate longitudinal stiffening rib and the diaphragm plate stiffening rib are arranged, so that a criss-cross steel structural net is formed among the top plate, the bottom plate, the web plate and the diaphragm plate, and the shaping supporting structure is convenient to stabilize;

2. set up finish rolling twisted steel, back pressure stiffening rib, back pressure cross slab, lacing wire lower bolster and spiral muscle and be convenient for the steel case roof beam body and the pier be connected with the mesa, the spiral muscle can cushion the steel case roof beam to the pressure of pier and mesa, provides bigger support.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic cross-sectional partial structure of the present invention;

fig. 4 is a schematic diagram of the local enlarged structure of the present invention.

In the figure: 1. a top plate; 2. a base plate; 3. a top plate longitudinal stiffener; 4. a floor longitudinal stiffener; 5. a first web; 6. a web transverse stiffener; 7. a web longitudinal stiffener; 8. a middle arc bottom plate; 9. two end bottom plates; 10. a diaphragm plate; 11. a diaphragm stiffener; 12. finish rolling the twisted steel; 13. a counter-pressure stiffener; 14. a back pressure diaphragm plate; 15. a tie bar lower backing plate; 16. a spiral rib; 17. a steel box girder body; 18. and reinforcing the steel bars.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a steel box girder structure for a double-arch double-cable-side S-type steel bridge, which comprises a steel box girder body 17, the steel box girder body 17 comprises a top plate 1 and a bottom plate 2, the top plate 1 is fixedly arranged on the top of the bottom plate 2, the bottom of the top plate 1 is fixedly provided with a top plate longitudinal stiffening rib 3, the top of the bottom plate 2 is fixedly provided with a bottom plate longitudinal stiffening rib 4, a plurality of uniformly distributed first web plates 5 are fixedly connected between the top plate 1 and the bottom plate 2, one ends of the plurality of first web plates 5 are fixedly connected with web plate transverse stiffening ribs 6, one sides of the plurality of first web plates 5 are respectively fixedly connected with one sides of the web plate longitudinal stiffening ribs 7, the bottom plate 2 comprises a middle circular arc bottom plate 8 and two end bottom plates 9, two second web plates are fixedly connected at the connection part of the middle circular arc bottom plate 8 and the two end bottom plates 9, a transverse partition plate 10 is fixedly arranged between the two second web plates, and finish rolling twisted steel bars 12 are fixedly arranged in the middle parts of the two end bottom plates 9.

Preferably, one side of each of the two diaphragm plates 10 is fixedly connected with a diaphragm plate stiffening rib 11, and the supporting force of the diaphragm plate 10 is improved through the diaphragm plate stiffening rib 11.

Preferably, one side that two end bottom plates 9 were passed to one end of two finish rolling twisted steel 12 alternates with the middle part of back pressure stiffening rib 13 and is connected, the inside of two back pressure stiffening rib 13 is all fixed and is provided with two back pressure cross slab 14, the one end of two back pressure stiffening rib 13 is all fixed and is provided with lacing wire lower bolster 15, the first lacing wire backing plate of the equal fixedly connected with of one end of two lacing wire lower bolster 15, finish rolling twisted steel 12, back pressure stiffening rib 13, back pressure cross slab 14, lacing wire lower bolster 15 and spiral muscle 16 are convenient for steel box girder body 17 and pier and mesa be connected.

Preferably, the other ends of the two finish rolling twisted steel bars 12 are all sleeved with spiral ribs 16 through second lacing wire base plates, and the spiral ribs 16 can buffer the pressure of the steel box girder body 17 on the bridge pier and the table top, so that a larger support is provided.

Preferably, a plurality of evenly distributed's connecting hole has all been seted up at the both ends of steel box girder body 17, and the equal fixedly connected with reinforcing bar 18 in inside of a plurality of connecting hole is convenient for connect fixedly, and accurate positioning improves stability.

When the steel box girder structure is used, the top plate longitudinal stiffening rib 3, the bottom plate longitudinal stiffening rib 4, the web transverse stiffening rib 6, the web longitudinal stiffening rib 7 and the diaphragm stiffening rib 11 form a criss-cross steel structural net among the top plate 1, the bottom plate 2, the first web 5 and the diaphragm plate 10, interact with each other and support each other, so that the pressure on the surface of the bridge is dispersed, and the shaping supporting structure is more stable; the finish rolling deformed steel bars 12, the back pressure stiffening ribs 13, the back pressure diaphragm plates 14, the tie bar lower backing plates 15 and the spiral bars 16 are convenient for connecting the steel box girder body 17 with the bridge pier and the table top; the spiral ribs 16 can buffer the pressure of the steel box girder body 17 on the bridge pier and the table top, and provide larger support; the connecting holes and the reinforcing steel bars 18 are convenient to connect, fix, accurately position and improve stability.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a steel box girder structure that double arch double cable face S shaped steel bridge was used, includes steel box girder body (17), its characterized in that: the steel box girder comprises a top plate (1) and a bottom plate (2), wherein the top plate (1) is fixedly arranged at the top of the bottom plate (2), the bottom of the top plate (1) is fixedly provided with a top plate longitudinal stiffening rib (3), the top of the bottom plate (2) is fixedly provided with a bottom plate longitudinal stiffening rib (4), a plurality of first webs (5) which are uniformly distributed are fixedly connected between the top plate (1) and the bottom plate (2), one ends of the first webs (5) are fixedly connected with a web transverse stiffening rib (6), one sides of the first webs (5) are respectively and fixedly connected with one side of a web longitudinal stiffening rib (7), the bottom plate (2) comprises a middle arc bottom plate (8) and two end bottom plates (9), and two second webs are fixedly connected at the joint of the middle arc bottom plate (8) and the two end bottom plates (9), and a transverse partition plate (10) is fixedly arranged between the two second webs, and finish-rolled twisted steel bars (12) are fixedly arranged in the middle of the two end bottom plates (9).

2. The steel box girder structure for a double-arch double-cable-side S-type steel bridge according to claim 1, wherein: one side of each of the two diaphragm plates (10) is fixedly connected with a diaphragm plate stiffening rib (11).

3. The steel box girder structure for a double-arch double-cable-side S-type steel bridge according to claim 1, wherein: two one side that the one end of finish rolling twisted steel (12) passed interior both ends bottom plate (9) alternates with the middle part of backpressure stiffening rib (13) and is connected, two the inside of backpressure stiffening rib (13) is all fixed and is provided with two backpressure cross slab (14), two the one end of backpressure stiffening rib (13) is all fixed and is provided with lacing wire lower bolster (15), two the first lacing wire backing plate of the equal fixedly connected with of one end of lacing wire lower bolster (15).

4. The steel box girder structure for the double-arch double-cable-side S-type steel bridge according to claim 3, wherein: and the other ends of the two finish rolling threaded steel bars (12) are all sleeved with spiral ribs (16) through second tie bar backing plates.

5. The steel box girder structure for a double-arch double-cable-side S-type steel bridge according to claim 1, wherein: the steel box girder comprises a steel box girder body (17), wherein a plurality of uniformly distributed connecting holes are formed in two ends of the steel box girder body (17), and a plurality of reinforcing steel bars (18) are fixedly connected to the inner portions of the connecting holes.