CN214530197U

CN214530197U - Bridge deck structure of steel trestle

Info

Publication number: CN214530197U
Application number: CN202120769004.1U
Authority: CN
Inventors: 潘李洋; 李怀亮; 江兴学; 赵可强
Original assignee: Shanghai Tonghan Construction Engineering Co ltd
Current assignee: Shanghai Tonghan Construction Engineering Co ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-10-29
Anticipated expiration: 2031-04-14

Abstract

The application relates to a bridge deck structure of steel trestle belongs to steel trestle technical field. It includes a plurality of levels and sets up a supporting beam side by side and welds the polylith flat board on a supporting beam, and the polylith flat board sets up along a supporting beam's length direction interval, and has the expansion joint between two adjacent flat boards. When outside temperature is higher, a supporting beam and a flat plate are all expanded, the expanded supporting beam moves in a gap between two adjacent supporting beams, and the expanded flat plate moves in a gap between two adjacent flat plates, so that the expanded supporting beam and the flat plate cannot be collided, and the trestle is stable in structure.

Description

Bridge deck structure of steel trestle

Technical Field

The utility model belongs to the technical field of steel trestle technique and specifically relates to a bridge deck structure of steel trestle is related to.

Background

With the increasing investment of the country to the field of infrastructure and the continuous development of bridge technology in China, large-scale overwater bridge buildings with complex technology are more and more, wherein trestles and drilling platforms are main channels for overwater bridge construction.

Among the correlation technique, the landing stage generally includes the pier and is located the decking structure of pier top, and the decking structure includes supporting beam and a plurality of flat board, and supporting beam and pier welding, the length direction of supporting beam are the length direction of landing stage, and a plurality of flat boards are laid along the length direction of supporting beam, and the side welding that deviates from the pier is dull and stereotyped and supporting beam to mutual butt between two adjacent flat boards.

To the correlation technique among the above-mentioned, because mutual butt between two adjacent dull and stereotypeds, when ambient temperature is higher, dull and stereotyped because of the reason volume of expend with heat and contract with cold can the grow, another dull and stereotyped can be extruded to the dull and stereotyped after the grow, can form outside bellied swell when two dull and stereotyped mutual extrusions, make dull and stereotyped easy follow a supporting beam and break away from, and then make the structure of landing stage unstable.

SUMMERY OF THE UTILITY MODEL

In order to make the stable in structure of landing stage, this application provides a bridge deck structure of steel landing stage.

The application provides a deck plate structure of steel trestle adopts following technical scheme:

the utility model provides a deck plate structure of steel trestle, includes a plurality of levels and sets up a supporting beam side by side and welds the polylith flat board on a supporting beam, and the polylith flat board sets up along a supporting beam's length direction interval, and has the expansion joint between two adjacent flat boards.

Through adopting above-mentioned technical scheme, during the decking equipment, set up a plurality of supporting beam side by side earlier, set up polylith flat board along a supporting beam's length direction interval again, make have the space between two adjacent supporting beams, also there is the space between two adjacent flat boards, when ambient temperature is higher, a supporting beam and flat board all with take place the inflation, supporting beam after the inflation removes in the space between two adjacent supporting beams, flat board after the inflation removes in the space between two adjacent flat boards, make supporting beam after the inflation all can not take place to contradict with flat board, make the stable in structure of landing stage.

Optionally, at least one welding seam is arranged between one flat plate and a plurality of support beams.

By adopting the technical scheme, each flat plate and the support beam are provided with at least one welding line, and the flat plates are connected with the support beams through the welding lines, so that the flat plates are welded on the support beams.

Optionally, there is at most one weld between one of the flat plates and one of the support beams.

Through adopting above-mentioned technical scheme, if a flat board if and a supporting beam between have a plurality of welding seams, when ambient temperature is higher, because the flat board is firmly fixed on a supporting beam for the flat board is difficult for outside inflation, thereby makes the flat board in the expansion of welding department, and then leads to the flat board to break away from a supporting beam easily, makes the decking structure unstable, when having a welding seam between through flat board and a supporting beam, the flat board to keeping away from the welding seam and going out the inflation and stretch into the space between two adjacent flat boards, makes the flat board can expand smoothly.

Optionally, the length of the welding seam along the width direction of the flat plate is smaller than the width of the flat plate.

By adopting the technical scheme, the length of the welding line is smaller than the width of the flat plate, so that the flat plate can smoothly expand with heat and contract with cold.

Optionally, the welding seams of the same flat plate are arranged at intervals along the length direction of the flat plate.

Through adopting above-mentioned technical scheme, the welding seam on the same flat board sets up along dull and stereotyped length direction interval, makes the welding seam on the same flat board all on a straight line, and then makes the flat board take place expend with heat and contract with cold smoothly.

Optionally, the welding seam is located on the side of the support beam close to the flat plate.

Through adopting above-mentioned technical scheme, the welding seam is located the side that a supporting beam is close to the flat board, also is the surface of steel trestle, during the decking installation, is connected a supporting beam with the support column of decking below earlier, lays the flat board on a supporting beam again, and the staff can stand on the flat board for the flat board welding, convenient operation can change the distance between two adjacent flat boards at any time as required simultaneously.

Optionally, the welding seams of the same flat plate are all located on the same side of the flat plate.

By adopting the technical scheme, when the flat plate is welded with the supporting beam, the welding seam of the same flat plate is positioned on the same side of the flat plate, so that the flat plate extends to one side far away from the welding seam when the flat plate expands.

Optionally, the welding seam is located on the side of the flat plate close to the support beam.

Through adopting above-mentioned technical scheme, the welding seam is located dull and stereotyped side that is close to a supporting beam, also be the bottom of steel trestle, during the decking installation, lay a plurality of dull and stereotyped intervals subaerial earlier, place a supporting beam on the flat board again, then weld flat board and a supporting beam, make flat board and a supporting beam weld into an entirety, hoist flat board and a supporting beam to the pier again at last, so, can be connected flat board and a supporting beam in advance, accelerate the speed of building of steel trestle, and simultaneously, the welding seam is located dull and stereotyped below, make the welding seam be difficult for being worn and torn, make decking stable in structure.

Optionally, the length of the weld is less than the width of the flat plate.

By adopting the technical scheme, the length of the welding line is smaller than that of the flat plate, so that after the flat plate is connected with the supporting beam, the flat plate can still expand towards the gap between the two adjacent flat plates, and the flat plates can normally expand and contract.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the outside air temperature is higher, the supporting beams and the flat plates are expanded, the expanded supporting beams move towards the gaps between the two adjacent supporting beams, and the expanded flat plates move towards the gaps between the two adjacent flat plates, so that the expanded supporting beams and the expanded flat plates are not in conflict, and the structure of the trestle is stable;

2. the welding seam is positioned on one side of the support beam close to the flat plates, so that the distance between two adjacent flat plates can be conveniently adjusted when the flat plates are welded;

3. the welding seam is positioned on one side of the flat plate close to the supporting beam, so that the welding seam is not easy to wear, and the bridge deck plate structure is more stable.

Drawings

Fig. 1 is a schematic view of the overall structure of a bridge deck structure in embodiment 1 of the present application.

FIG. 2 shows one arrangement of the weld seams in example 1 of the present application.

FIG. 3 shows another arrangement of the weld seams in example 1 of the present application.

Fig. 4 is a schematic structural diagram of a bridge deck in embodiment 2 of the present application.

FIG. 5 shows the arrangement of the weld seams in example 2 of the present application.

Description of reference numerals: 1. a support beam; 2. a flat plate; 21. welding the hole; 3. an expansion joint; 4. and (7) welding seams.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses steel trestle's decking structure, the decking bottom is the pier, supports the decking on the surface of water through the pier.

Example 1:

referring to fig. 1, the decking structure includes a plurality of supporting beam 1 and a plurality of dull and stereotyped 2, and supporting beam 1 and dull and stereotyped 2 are made by metal material, and supporting beam 1 passes through welded fastening with the pier, and a plurality of supporting beam 1 set up side by side, and has the space between two adjacent supporting beam 1, and a plurality of dull and stereotyped 2 all weld in supporting beam 1 keep away from the side of pier.

The supporting beam 1 can be an i-steel or a C-shaped steel, and in this embodiment, the supporting beam 1 is an i-steel, and the length direction of the supporting beam 1 is the length direction of the steel trestle.

The flat plates 2 are long-strip-shaped, the flat plates 2 are perpendicular to the supporting beam 1, the flat plates 2 are arranged at intervals along the length direction of the supporting beam 1, and an expansion joint 3 for the flat plates 2 to expand and extend is arranged between every two adjacent flat plates 2.

Referring to fig. 2 and 3, at least one welding seam 4 is arranged between a flat plate 2 and a plurality of support beams 1, so that the flat plate 2 is connected with the support beams 1 by welding; at most one weld 4 is formed between one flat plate 2 and one support beam 1, that is, one flat plate 2 and one support beam 1 are welded only once.

For the stability between improving dull and stereotyped 2 and the supporting beam 1, the welding has a plurality of welding seams 4 between a dull and stereotyped 2 and a plurality of supporting beam 1, and a plurality of welding seams 4 set up along dull and stereotyped 2's length direction interval for a plurality of welding seams 4 of same dull and stereotyped 2 are a straight line.

Further, the length of the weld 4 in the width direction of the flat plate 2 is smaller than the width of the flat plate 2, and generally, the length of the weld 4 in the width direction of the flat plate 2 is less than one eighth of the width of the flat plate 2, so that the influence of the weld 4 on the deformation of the flat plate 2 is small.

The position of the welding seam 4 is also different for different construction modes, in the embodiment, the support beam 1 is connected with the pier, the flat plates 2 are laid on the support beam 1 at intervals along the length direction of the support beam 1, then the flat plates 2 are fixedly connected with the support beam 1 through welding, and during welding, workers stand on the flat plates 2. Therefore, all the welds 4 are located on the side of the support beam 1 close to the flat plate 2 in this embodiment.

The longitudinal direction of the weld 4 is the same as the longitudinal direction of the flat plate 2. In order to realize the extension and contraction of the flat plates 2, in one embodiment, the welding seams 4 of the same flat plate 2 are positioned on the same side of the flat plate 2, so that the side of the flat plate 2 far away from the welding seams 4 can expand with heat and contract with cold. The welding seam 4 can be arranged between two adjacent flat plates 2, or the welding seam 4 can not be arranged; in another embodiment, the flat plate 2 is provided with a plurality of welding holes 21, the plurality of welding holes 21 are arranged at intervals along the length direction of the flat plate 2, each welding hole 21 corresponds to one support beam 1, one or more support beams 1 may be arranged between two adjacent welding holes 21, or the support beams 1 may not be arranged, and when a worker welds, the worker aligns a welding gun with the welding holes 21, so that the welding seam 4 is located in the welding hole 21.

The bridge deck structure's of steel trestle implementation principle of this application embodiment does: when the bridge deck plate structure is welded, the supporting beam 1 is connected with the piers, and then the flat plates 2 are laid and welded on the supporting beam 1 according to actual conditions.

Example 2:

this embodiment differs from embodiment 1 only in the weld 4.

Referring to fig. 4 and 5, in this embodiment, a plurality of flat plates 2 are first laid on the ground at intervals, then a plurality of support beams 1 are placed on the flat plates 2 along the length direction of the flat plates 2, then the support beams 1 and the flat plates 2 are fixedly connected by welding, and during welding, a worker stands on the support beams 1, so that all the welding seams 4 are located on the side surfaces of the flat plates 2 close to the support beams 1.

The longitudinal direction of the weld 4 is the same as the width direction of the flat plate 2. It is noted that the length of the weld 4 is less than the width of the flat plate 2, and the length of the weld 4 is less than one eighth of the width of the flat plate 2, so that the flat plate 2 can be stretched on both sides in the width direction thereof. One or more support beams 1 may be spaced between two adjacent welding seams 4, or the support beams 1 may not be spaced.

The implementation principle of the embodiment is as follows: when the bridge deck plate structure is assembled, the flat plate 2 and the supporting beam 1 are welded together to form a whole, and then the flat plate 2 and the supporting beam 1 which form the whole are hoisted to the pier.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a bridge deck structure of steel trestle which characterized in that: support beam (1) that sets up including a plurality of horizontal intervals and weld polylith flat board (2) on a support beam (1), polylith flat board (2) set up along the length direction interval of a support beam (1), and have expansion joint (3) between two adjacent flat boards (2).

2. A bridge deck structure for a steel trestle according to claim 1, characterised in that: at least one welding seam (4) is arranged between one flat plate (2) and a plurality of supporting beams (1).

3. A bridge deck structure for a steel trestle according to claim 1, characterised in that: at most one weld seam (4) is provided between one flat plate (2) and one support beam (1).

4. A bridge deck structure for a steel trestle according to claim 2, characterised in that: the length of the welding seam (4) along the width direction of the flat plate (2) is less than the width of the flat plate (2).

5. A bridge deck structure for a steel trestle according to claim 2, characterised in that: the welding seams (4) of the same flat plate (2) are arranged at intervals along the length direction of the flat plate (2).

6. A bridge deck structure for a steel trestle according to claim 2, characterised in that: the welding seam (4) is positioned on the side surface of the support beam (1) close to the flat plate (2).

7. A bridge deck structure for a steel trestle according to claim 6, characterised in that: the welding seams (4) of the same flat plate (2) are all positioned on the same side of the flat plate (2).

8. A bridge deck structure for a steel trestle according to claim 2, characterised in that: the welding seam (4) is positioned on the side surface of the flat plate (2) close to the support beam (1).

9. A bridge deck structure for a steel trestle according to claim 8, characterised in that: the length of the welding seam (4) is less than the width of the flat plate (2).