CN212533688U - Oblate variable cross-section steel pipe arch - Google Patents
Oblate variable cross-section steel pipe arch Download PDFInfo
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- CN212533688U CN212533688U CN202021442085.6U CN202021442085U CN212533688U CN 212533688 U CN212533688 U CN 212533688U CN 202021442085 U CN202021442085 U CN 202021442085U CN 212533688 U CN212533688 U CN 212533688U
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Abstract
The utility model discloses an oblate variable cross section steel pipe arch, including the square pipe transition piece that is the loudspeaker form and has the radian square pipe transition piece both sides respectively welded arc semicircle pipe, square pipe transition piece include last wallboard, lower wallboard, left web and right web that the edge weld is in the same place, last wallboard and lower wallboard relative, left web relative with right web, last wallboard and lower wallboard be the isosceles trapezoid board that the specification is the same, left web and right web width unanimous and have the radian, arc semicircle pipe radian unanimous with left web and right web radian, arc semicircle pipe diameter and last wallboard and lower wallboard between the distance equal, arc semicircle pipe two limits be in the same edge welding of one side with last wallboard and lower wallboard respectively and be in the same place.
Description
Technical Field
Relates to bridge manufacturing, in particular to a steel pipe arch structure of a steel arch bridge.
Background
In recent years, with the rapid development of economy in China, the manufacturing technology of steel bridges is mature day by day, the design aspect of bridges is not only satisfied with the traffic travel problem, but also the design aesthetics of bridges is improved to an important position, and one embodiment is the wide appearance of landscape bridges. The steel arch bridge has good stability, and the steel arch on the traditional steel arch bridge is mostly in the shape of an arc with a uniform cross section due to good landscape, so that the steel arch bridge has a single shape.
SUMMERY OF THE UTILITY MODEL
In order to solve the deficiency among the prior art, provide a become oblate variable cross section steel pipe arch unique in molding, that the performance is good, the utility model discloses the technical scheme who adopts is:
the utility model provides an oblate variable cross section steel pipe arch, is including the square pipe transition piece that is the loudspeaker form and has the radian square pipe transition piece both sides respectively welded arc semicircle pipe, square pipe transition piece include edge weld last wallboard, lower wallboard, left web and right web together, last wallboard and lower wallboard relative, left web and right web relative, last wallboard and lower wallboard be the same isosceles trapezoid board of specification, left web and right web width unanimous and have the radian, arc semicircle pipe radian unanimous with left web and right web radian, arc semicircle pipe diameter and last wallboard and lower wallboard between equal distance, arc semicircle pipe two limits be in the same side with last wallboard and lower wallboard respectively edge weld together.
Furthermore, a group of reinforcing plates are welded in the square tube transition piece.
The steel pipe arch with the structure is of a variable cross-section oblate shape, the steel pipe arch is novel and attractive in structure, simple in process and easy to achieve, and the steel pipe arch is good in integrity.
Drawings
FIG. 1 is a schematic view of a steel pipe arch structure according to the present invention;
FIG. 2 is an exploded view of the steel pipe arch of the present invention;
fig. 3 is a sectional view of the steel pipe arch of the present invention.
Detailed Description
The steel pipe arch as shown in fig. 1 to 3 comprises a square pipe transition piece which is trumpet-shaped and has a certain radian, arc semi-circular pipes 1 with radians are welded on two sides of the square pipe transition piece, a flat steel pipe arch with gradually changed section and a certain radian is formed through the structure, the square pipe transition piece as shown in fig. 2 comprises an upper wallboard 2, a lower wallboard 3, a left web plate 4 and a right web plate 5, the upper wallboard 2 and the lower wallboard 3 are both isosceles trapezoids, the left web plate 4 and the right web plate 5 are equal in width and have a certain radian, the edges of the upper wallboard 2, the lower wallboard 3, the left web plate 4 and the right web plate 5 are welded together to form a square pipe, wherein the upper wallboard 2 and the lower wallboard 3 are opposite, the left web plate 4 and the right web plate 5 are opposite, because the upper wallboard 2 and the lower wallboard 3 are isosceles trapezoids, the square pipe is trumpet-shaped, and because the left web plate 4 and the right web plate 5, make this side's pipe have certain radian, the semicircle pipe of welding in both sides also has the radian the same with left web 4 and right web 5, and the diameter of arc semicircle pipe 1 equals with the distance between last wallboard 2 and the lower wallboard 3 after the welding, the smooth-going smooth transition in the arc semicircle pipe 1 and the side's pipe transition piece surface that makes that weld well.
In order to make the steel pipe arch structure more stable, a set of reinforcing plates 6 are welded in the square pipe transition piece when the upper wall plate 2, the lower wall plate 3, the left web 4 and the right web 5 are welded as shown in fig. 3.
The process for manufacturing the steel pipe arch comprises the following steps:
a. preparing two webs with equal width and same radian, preparing two isosceles trapezoid wall plates with the same specification, and welding the edge close to the waist of the wall plate and the arc edge of the web plate to enable the wall plate and the web plate to enclose a square pipe with radian and gradually changed aperture; preparing a circular steel tube with a uniform cross section, bending the circular steel tube into a bent tube with the radian consistent with that of the web plate, and cutting the bent tube into two semicircular tubes along the axis of the bent tube, wherein the orthographic projection of the axis is a straight line; the diameter of the round steel pipe is equal to the distance between the two wall plates which enclose the square pipe;
b. and respectively welding the two semicircular pipe cutting edges with the waist edges of the wall plates to form the oblate variable-section steel pipe arch.
And c, welding a group of reinforcing plates between the wall plates and the web plates when the square tube is welded in the step a. And when the bent pipe is cut, the flame cutting of a trolley is adopted.
Claims (2)
1. The utility model provides an oblate variable cross section steel pipe arch which characterized in that: including being the square pipe transition piece that the loudspeaker form has the radian side pipe transition piece both sides weld respectively arc semicircle pipe (1), side pipe transition piece including marginal welding last wallboard (2), lower wallboard (3), left web (4) and right web (5) together, last wallboard (2) relative with lower wallboard (3), left web (4) relative with right web (5), last wallboard (2) and lower wallboard (3) be the same isosceles trapezoid board of specification, left web (4) and right web (5) width unanimous and have the radian, arc semicircle pipe (1) radian unanimous with left web (4) and right web (5) radian, arc semicircle pipe (1) diameter and last wallboard (2) and lower wallboard (3) between equal distance, semicircle pipe (1) two limits respectively with last wallboard (2) and lower wallboard (3) be in the same side the marginal welding together of being in same side together .
2. The oblate variable cross-section steel tube arch of claim 1, wherein: a group of reinforcing plates (6) are welded in the square tube transition piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021442085.6U CN212533688U (en) | 2020-07-21 | 2020-07-21 | Oblate variable cross-section steel pipe arch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021442085.6U CN212533688U (en) | 2020-07-21 | 2020-07-21 | Oblate variable cross-section steel pipe arch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212533688U true CN212533688U (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021442085.6U Active CN212533688U (en) | 2020-07-21 | 2020-07-21 | Oblate variable cross-section steel pipe arch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691284A (en) * | 2020-07-21 | 2020-09-22 | 中铁宝桥集团有限公司 | Oblate variable cross-section steel pipe arch and manufacturing process thereof |
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2020
- 2020-07-21 CN CN202021442085.6U patent/CN212533688U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691284A (en) * | 2020-07-21 | 2020-09-22 | 中铁宝桥集团有限公司 | Oblate variable cross-section steel pipe arch and manufacturing process thereof |
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