CN215673038U - Corner connecting structure of corrugated steel plate - Google Patents
Corner connecting structure of corrugated steel plate Download PDFInfo
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- CN215673038U CN215673038U CN202022903066.5U CN202022903066U CN215673038U CN 215673038 U CN215673038 U CN 215673038U CN 202022903066 U CN202022903066 U CN 202022903066U CN 215673038 U CN215673038 U CN 215673038U
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- corrugated steel
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Abstract
The utility model discloses a corner connecting structure of a corrugated steel plate, which comprises two arched corrugated steel plates which are connected at an angle larger than 90 degrees and smaller than 180 degrees, wherein the arched direction of the corrugated steel plates faces the outside of a connecting angle; two corrugated steel plate's link is provided with the secondary bending section, and in the bending direction orientation connection angle, secondary bending section shape is the same, two corrugated steel plate's secondary bending section overlap joint, and the ripple is laminated each other and is linked with the bolt-up, and bight forms double-deck corrugated steel plate structure. The utility model adopts a smooth transition double-layer connecting structure, reduces the stress concentration at the corner part and has high strength; the box-shaped channel or culvert connected by the structure has large effective passing space inside; the flange is fixed by using bolts, the structure is simple, the cost is saved, and the hidden danger of fatigue damage at the welding seam of the flange welding is eliminated.
Description
Technical Field
The utility model relates to a corner connecting structure, in particular to a corner connecting structure of a steel corrugated pipeline.
Background
The corrugated pipe is a tubular elastic sensitive element formed by connecting foldable corrugated sheets along the folding and stretching direction, the applicant is dedicated to research, production and popularization of the embedded steel corrugated pipe, the existing corrugated pipe mostly uses a flange connection mode, but the connection mode uses a large number of flanges, the price is high, automatic welding is not easy to realize, and a welding seam is easy to fatigue and damage under vibration; the stress at the joint of the flange and the corrugated steel plate and the stress at the periphery are too concentrated, a large number of reinforcing ribs are required to be arranged, and the structure is complex. In addition, the connection modes such as welding, electric hot melting strips, clamp connection and the like exist, but the cost is high, and the method is not suitable for the connection of the arched corrugated steel plate. The existing connection mode which is simple in structure, low in cost, less in stress concentration and suitable for the arched corrugated steel plate is lacked.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to provide a corner connecting structure which is simple in construction process, saves cost and can be suitable for an arched corrugated steel plate.
The technical scheme is as follows: the corner connecting structure of the corrugated steel plates comprises a first corrugated steel plate and a second corrugated steel plate, wherein the first corrugated steel plate and the second corrugated steel plate are arched corrugated steel plates which are connected at an angle larger than 90 degrees and smaller than 180 degrees, and the arched direction of the corrugated steel plates faces the outside of a connecting angle; the connecting ends of the two corrugated steel plates are provided with secondary bending sections, and the bending direction faces to the inside of the connecting angle; the secondary bending sections are the same in shape, the secondary bending sections of the two corrugated steel plates are in lap joint, the corrugations are mutually attached and are fastened and linked by bolts, and the corners form a double-layer corrugated steel plate structure.
The corrugated steel plate secondary bending section is fastened and connected by at least two rows of bolts.
The diameter of the secondary bending section is not more than one eighth of the diameter of the main arch of the arched corrugated steel plate.
The length of the secondary bending section is not more than one eighth of the corrugated steel plate.
And a sealing gasket is arranged at the corner overlapping part of the first corrugated steel plate and the second corrugated steel plate.
Has the advantages that: (1) the corners are of double-layer structures and have high strength, and the box-type underground passage or culvert formed by connecting the corner structures has a bending radius which is much smaller than that of the corners of a single-layer structure under the condition of the same upper load, so that the effective passing space of the vehicles inside can be increased; (2) corner arc transition is carried out, so that corner stress concentration is reduced; (3) the corner part is of a lap joint structure, and a welding seam formed by flange connection is avoided, so that the hidden danger of the same fatigue cracking of the welding seam under load is eliminated; (4) compared with a flange connecting structure, the material is saved, and the processing cost such as welding and the like is eliminated.
Drawings
FIG. 1 is a connection structure diagram of two corrugated steel plates of the present invention, each of which has a secondary bent section at a corner thereof;
FIG. 2 is a view showing a connection structure of a corrugated steel plate of the present invention in which secondary bent portions are provided at corners thereof.
Detailed Description
The technical scheme of the utility model is further explained by combining the attached drawings.
As shown in fig. 1, the corner connecting structure of the steel corrugated pipe includes a first corrugated steel plate 1 and a second corrugated steel plate 2; the first and second deck plates 1 and 2 are connected at an angle of more than 90 degrees and less than 180 degrees, and the direction of camber of the deck plates faces the outside of the connection angle.
Example 1:
as shown in fig. 1, a secondary bending section 3 which is bent towards the inside of the channel is arranged at the corner joint of the first corrugated steel plate 1 and the second corrugated steel plate 2, the bending angle is an obtuse angle, the bending section is arc-shaped, the two bending sections 3 are the same in shape, the length of the bending section is not more than one eighth of the length of the first corrugated steel plate 1 or the second corrugated steel plate 2, and the diameter of the bending section is not more than one eighth of the diameter of the main arch of the arched corrugated steel plate.
First corrugated steel version 1 and the second corrugated steel board 2 two times bending section 3 overlap joint from top to bottom, are provided with seal gasket between the two times bending section 3, make the ripple laminate each other and form double-deck corrugated steel plate structure, and the bending section of junction forms smooth transition, and stress concentration reduces. The secondary bending section is provided with two rows of bolt holes which are fastened and connected by bolts. In practical use, the number of bolts can be increased according to the length of the bending section.
Example 2:
as shown in fig. 2, a secondary bending section 3 which is bent towards the inside of the channel is arranged at the corner joint of the first corrugated steel plate 1, the bending angle is an obtuse angle, the bending section is arc-shaped and has the same shape as the corner of the second corrugated steel plate 2, the length of the bending section is not more than one eighth of the length of the first corrugated steel plate 1, and the diameter of the bending section is not more than one eighth of the diameter of the main arch of the first corrugated steel plate 1; the secondary bending section 3 of the first corrugated steel plate 1 is vertically overlapped with the corner of the second corrugated steel plate 2, a sealing gasket is arranged between the bending section 3 and the second corrugated steel plate 2, the bending section at the joint forms smooth transition, and stress concentration is reduced. The connecting section is provided with two rows of bolt holes which are fastened and connected by bolts. In practical use, the number of bolts can be increased according to the length of the bending section.
Claims (5)
1. A corner connecting structure of corrugated steel plates comprises a first corrugated steel plate (1) and a second corrugated steel plate (2), and is characterized in that the first corrugated steel plate (1) and the second corrugated steel plate (2) are arched corrugated steel plates which are connected at an angle larger than 90 degrees and smaller than 180 degrees, and the arched directions of the corrugated steel plates face the outside of a connecting angle; the connecting ends of the two corrugated steel plates are provided with secondary bending sections (3), and the bending direction faces to the inside of the connecting angle; the secondary bending sections (3) are identical in shape, the secondary bending sections (3) of the two corrugated steel plates are in lap joint, the corrugations are mutually attached and are fastened and connected through bolts, and the corners form a double-layer corrugated steel plate structure.
2. The corner connecting structure of the deck plate as claimed in claim 1, wherein the secondary bent sections (3) of the deck plate are fastened by at least two rows of bolts.
3. A deck corner joint structure according to claim 1, wherein the diameter of said secondary curved section (3) is not more than one eighth of the diameter of the main arch of said arch-shaped deck.
4. The angle connecting structure of the deck plate as claimed in claim 1, wherein the length of the secondary bent section (3) is not more than one eighth of the deck plate.
5. The corner connecting structure of the deck plates as claimed in claim 1, wherein a gasket seal is provided at the corner lap joint of the first deck plate (1) and the second deck plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022903066.5U CN215673038U (en) | 2020-12-07 | 2020-12-07 | Corner connecting structure of corrugated steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022903066.5U CN215673038U (en) | 2020-12-07 | 2020-12-07 | Corner connecting structure of corrugated steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215673038U true CN215673038U (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022903066.5U Active CN215673038U (en) | 2020-12-07 | 2020-12-07 | Corner connecting structure of corrugated steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215673038U (en) |
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2020
- 2020-12-07 CN CN202022903066.5U patent/CN215673038U/en active Active
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