CN218147753U

CN218147753U - Novel polygonal corrugated web plate combined dumbbell type concrete filled steel tube arch rib structure

Info

Publication number: CN218147753U
Application number: CN202221746095.8U
Authority: CN
Inventors: 周建利; 高毅; 俞骁倩
Original assignee: China United Engineering Corp Ltd
Current assignee: China United Engineering Corp Ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-12-27
Anticipated expiration: 2032-07-08

Abstract

The utility model relates to a novel polygon wave web combination dumbbell shaped steel pipe concrete arch rib structure, it belongs to bridge engineering technical field. The utility model discloses an go up arch rib, lower arch rib, arch rib cross slab, trapezoidal web, ripple web and web cross slab, go up the arch rib and cooperate with arch rib down, go up the arch rib and set up the arch rib cross slab with the interval in the arch rib down, trapezoidal web or ripple web are located between arch rib and the lower arch rib, the interval sets up the cross slab in trapezoidal web or the ripple web, go up the arch rib and adopt welded connection between arch rib and trapezoidal web or the ripple web down. The utility model has the advantages of reasonable design, can guarantee the welding seam quality better under the prerequisite of proof strength, and processing manufacturing technology is simpler, and the construction is convenient, and energy saving and emission reduction practices thrift the cost, satisfies the user demand.

Description

Novel polygonal corrugated web combined dumbbell type steel pipe concrete arch rib structure

Technical Field

The utility model relates to a structure especially relates to a novel polygon wave form web combination dumbbell shaped steel pipe concrete arch rib structure, and it belongs to bridge engineering technical field.

Background

The steel pipe concrete is used as a combined material, is very suitable for an arch system bridge, has light dead weight, high strength, good earthquake resistance and strong deformation resistance, better solves the problems of material saving, light installation weight, simple and convenient construction and large bearing capacity required by bridge construction, and is an ideal structural form of a large-span arch bridge. With the development of the national traffic industry, the concrete filled steel tube arch bridge has been widely applied in China, and hundreds of large-span concrete filled steel tube arch bridges in various forms are built in China at present. According to statistics in the third edition of the concrete-filled steel tube arch bridge, 200 dumbbell type concrete-filled steel tube arch bridges account for about half of the total number of the concrete-filled steel tube arch bridges by 1 month in 2015. The dumbbell-shaped concrete filled steel tube consists of upper and lower circular concrete filled steel tube bodies and an abdominal cavity for connecting the upper and lower circular concrete filled steel tube bodies. However, a great deal of engineering practice shows that the conventional dumbbell-shaped steel tube concrete arch rib is easy to bulge outwards and even the welding seam is easy to be pulled apart by the pressure of concrete when the abdominal cavity concrete is poured under pressure, thereby causing safety accidents.

In order to prevent the accidents, various improvement measures exist in China at present, but the measures have various defects, for example, the welding surface of the arch rib and the web is a curved surface, the quality of a welding seam is difficult to guarantee, the processing and manufacturing process is complex, the manufacturing cost is high, the construction is not very convenient, and the requirements of continuously pursuing landscape modeling in engineering cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design is reasonable, can guarantee the welding seam quality better under the prerequisite of proof strength, and processing manufacturing technology is simpler, and the construction is convenient, energy saving and emission reduction, the novel polygon wave form web combination dumbbell shaped steel pipe concrete arch rib structure of saving the cost.

The utility model provides a technical scheme that above-mentioned problem adopted is: this novel polygon waveform web combination dumbbell type steel pipe concrete arch rib structure, including last rib, lower rib and rib cross slab, go up the rib and cooperate with lower rib, should go up the rib and set up rib cross slab, its characterized in that with the interval in the lower rib: the novel corrugated plate structure is characterized by further comprising a trapezoidal web plate, a corrugated web plate and web plate diaphragm plates, wherein the trapezoidal web plate or the corrugated web plate is located between the upper arch rib and the lower arch rib, the diaphragm plates are arranged in the trapezoidal web plate or the corrugated web plate at intervals, and the upper arch rib and the lower arch rib are connected with the trapezoidal web plate or the corrugated web plate in a welding mode.

Preferably, the trapezoidal web comprises a first arc section, a second arc section, a third arc section, a fourth arc section, a first straight line section, a second straight line section, a third straight line section and a fourth straight line section.

Preferably, the corrugated web plate comprises five arc sections, six arc sections and five straight line sections, wherein the five arc sections and the six arc sections are the same in size and opposite in direction, and the five arc sections and the six arc sections are tangent to the five straight line sections.

Preferably, the cross section of the upper arch rib and the cross section of the lower arch rib adopt a regular hexagon or a rectangle.

Preferably, the trapezoidal web or the corrugated web of the present invention has a periodically repeated wave shape or a trapezoidal shape with equal or unequal distances in the length direction.

Preferably, the upper arch rib, the lower arch rib and the trapezoidal web or the corrugated web are in single-side penetration fillet weld.

Preferably, the web diaphragm plate and the arch rib diaphragm plate are in the same plane.

Compared with the prior art, the utility model, have following advantage and effect: the integral structure is reasonable in design, the upper arch rib and the lower arch rib and the web of the original traditional dumbbell-shaped arch rib structure are replaced by the polygonal tubes and the corrugated webs, the comprehensive mechanical property of a product is greatly improved, the phenomenon that a traditional structure is exploded in a bin when concrete is poured into the web is avoided, the processing and manufacturing process is simple, the quality of a welding seam is better guaranteed, the construction is convenient and fast, energy conservation and emission reduction are achieved, the cost is saved, the stress of the integral structure is more reasonable, meanwhile, the landscape modeling requirement of the arch rib structure can be met, and the engineering practical application value is high.

Drawings

Fig. 1 is a schematic structural view of an arch rib according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a regular hexagonal rib according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of a rectangular rib according to an embodiment of the present invention.

Fig. 4 isbase:Sub>A cross-sectional view of the trapezoidal webbase:Sub>A-base:Sub>A in fig. 2 and 3 according to the embodiment of the present invention.

Fig. 5 isbase:Sub>A cross-sectional view of thebase:Sub>A-base:Sub>A corrugated web in fig. 2 and 3 according to the embodiment of the present invention.

Fig. 6 is a wave diagram of a trapezoidal web according to an embodiment of the present invention.

Fig. 7 is a wave form diagram of a corrugated web in accordance with an embodiment of the present invention.

In the figure: the upper arch rib 10, the lower arch rib 20, the trapezoidal web 30, the corrugated web 40, the arch rib diaphragm 50 and the web diaphragm 60; the first arc section 31, the second arc section 33, the third arc section 35, the fourth arc section 37, the first straight line section 32, the second straight line section 34, the third straight line section 36 and the fourth straight line section 38; five arc sections 41, six arc sections 42 and five straight line sections 43.

Detailed Description

The present invention will be described in further detail below with reference to the accompanying drawings by way of examples, which are illustrative of the present invention and are not intended to limit the present invention.

Examples are given.

Referring to fig. 1 to 7, the polygonal corrugated web composite dumbbell type steel pipe concrete arch rib structure of the present embodiment includes an upper arch rib 10, a lower arch rib 20, a rib diaphragm 50, a web diaphragm 60, and a trapezoidal web 30 or a corrugated web 40 between the upper arch rib 10 and the lower arch rib 20.

The upper arch rib 10 and the lower arch rib 20 in the embodiment adopt upper and lower polygonal steel arch ribs, and a single-side penetration fillet weld is formed between the upper and lower polygonal arch ribs and the corrugated web; the upper polygonal arch rib and the lower polygonal arch rib are mutually parallel or form an included angle; the arch rib comprises an upper rectangular pipe or a regular hexagonal pipe and a lower rectangular pipe or a regular hexagonal pipe,

the upper rib 10 and the lower rib 20 in this embodiment are single-side penetration fillet welds with the trapezoidal web 30 or the corrugated web 40.

Referring to fig. 2 to 3, the upper rib 10 and the lower rib 20 in the present embodiment may have a regular hexagonal or rectangular cross section, and diaphragms 50 are spaced apart from each other.

Referring to fig. 2 to 3, the concrete in the arch rib in the embodiment is ultra-high performance concrete or compensation shrinkage concrete.

Referring to fig. 4-5, the corrugated web in this embodiment may be a trapezoidal web 30 or a corrugated web 40 with a diaphragm 60 spaced inwardly and in the same plane as the rib diaphragm 50.

The trapezoidal web 30 or the corrugated web 40 in the present embodiment has a periodically repeating wave or trapezoid shape with equal or unequal intervals in the length direction thereof.

Referring to the waveform shown in fig. 6, the trapezoidal web 30 unit includes a first arc segment 31, a second arc segment 33, a third arc segment 35, a fourth arc segment 37, a first straight line segment 32, a second straight line segment 34, a third straight line segment 36 and a fourth straight line segment 38,

referring to the waveform shown in fig. 7, the corrugated web 40 unit includes two circular arc sections five 41, six circular arc sections six 42 and five straight line sections 43 which are the same in size and opposite in direction, and all the circular arc sections are tangent to the straight line sections.

The manufacturing process of the novel polygonal corrugated web combined dumbbell type concrete filled steel tube arch rib structure of the embodiment is as follows: 1) Prefabrication: welding an upper arch rib, a lower arch rib, a corrugated web plate and a diaphragm plate in a factory, and dividing the upper arch rib, the lower arch rib, the corrugated web plate and the diaphragm plate into a plurality of sections; 2) And (3) transportation: transporting the segmented arch rib prefabricated in a factory to a site; 3) Hoisting and installing: hoisting arch ribs in sections on site, adjusting the line type according to the designed arch axis, and welding each section of arch rib; 4) Pouring concrete: the quality of the welding seam is ensured, the concrete in the arch rib is poured, and the concrete does not need to be poured in the abdominal cavity of the web.

And will be apparent to those skilled in the art from the foregoing description.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a novel polygon wave web combination dumbbell type steel pipe concrete arch rib structure, includes arch rib (10), lower arch rib (20) and arch rib cross slab (50), go up arch rib (10) and cooperate with lower arch rib (20), should go up arch rib (10) and set up arch rib cross slab (50), its characterized in that with lower arch rib (20) interior interval: the novel arch rib structure is characterized by further comprising a trapezoidal web (30), a corrugated web (40) and web diaphragm plates (60), wherein the trapezoidal web (30) or the corrugated web (40) is located between the upper arch rib (10) and the lower arch rib (20), the web diaphragm plates (60) are arranged in the trapezoidal web (30) or the corrugated web (40) at intervals, and the upper arch rib (10) and the lower arch rib (20) are connected with the trapezoidal web (30) or the corrugated web (40) in a welding mode.

2. The novel polygonal corrugated web combined dumbbell type concrete filled steel tube arch rib structure of claim 1, which is characterized in that: the trapezoid web (30) comprises a first arc section (31), a second arc section (33), a third arc section (35), a fourth arc section (37), a first straight line section (32), a second straight line section (34), a third straight line section (36) and a fourth straight line section (38).

3. The novel polygonal corrugated web combined dumbbell type concrete filled steel tube arch rib structure of claim 1, which is characterized in that: the corrugated web plate (40) comprises five arc sections (41), six arc sections (42) and five straight line sections (43), wherein the five arc sections (41), the six arc sections (42) and the five straight line sections (43) are identical in size and opposite in direction, and are tangent to each other.

4. The novel polygonal corrugated web combined dumbbell type concrete filled steel tube arch rib structure of claim 1, which is characterized in that: the sections of the upper arch rib (10) and the lower arch rib (20) adopt regular hexagons or rectangles.

5. The novel polygonal corrugated web combined dumbbell type concrete filled steel tube arch rib structure of claim 1, which is characterized in that: the trapezoidal web (30) or the corrugated web (40) is in a periodically repeated wave shape or a trapezoidal shape with equal or unequal intervals in the length direction.

6. The novel polygonal corrugated web combined dumbbell type concrete filled steel tube arch rib structure of claim 1, which is characterized in that: and single-side penetration fillet welds are arranged between the upper arch rib (10) and the lower arch rib (20) and the trapezoidal web (30) or the corrugated web (40).

7. The novel polygonal corrugated web combined dumbbell type concrete filled steel tube arch rib structure of claim 1, which is characterized in that: the web diaphragm (60) and the rib diaphragm (50) are in the same plane.