CN218466349U - Device for improving rigidity of profiled steel sheet between steel box girder and steel box - Google Patents
Device for improving rigidity of profiled steel sheet between steel box girder and steel box Download PDFInfo
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- CN218466349U CN218466349U CN202221614617.9U CN202221614617U CN218466349U CN 218466349 U CN218466349 U CN 218466349U CN 202221614617 U CN202221614617 U CN 202221614617U CN 218466349 U CN218466349 U CN 218466349U
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Abstract
The utility model discloses a device for improving the rigidity of a profiled steel sheet between a steel box girder and a steel box, which comprises a supporting steel stool, a U-shaped lacing wire and a reinforcing longitudinal beam; the reinforcing longitudinal beam is formed by vertically splicing I-shaped steel, and a supporting steel stool is respectively arranged below two ends of the reinforcing longitudinal beam; the U-shaped opening of the U-shaped lacing wire faces the side face of the reinforcing longitudinal beam, and the reinforcing longitudinal beam is positioned at the upper part in the U-shaped opening; the bottom ends of the U-shaped tie bars are welded with square steel arranged between cross beams between boxes, and the top ends of the U-shaped tie bars are welded with the top ends of the reinforcing longitudinal beams; two U-shaped lacing wires which are arranged in parallel in a butt joint mode are arranged above each section of square steel and are connected to form a square shape. Through settling this device before bridge floor concrete placement, can effectively improve the intensity of supporting the square steel, and then reach the effect that promotes bridge floor profiled sheet rigidity, avoid pouring the problem that produces the downward amount of deflection between two crossbeams of in-process.
Description
Technical Field
The utility model belongs to the technical field of steel case-concrete composite structure bridge, concretely relates to promote device of profiled sheet rigidity between steel case roof beam case.
Background
The steel box-concrete combined beam bridge is a combined structure form which is applied more in recent years, particularly in long-span, ultra-wide and complex linear bridges, the steel box-concrete combined beam bridge has obvious advantages, more reasonable structural stress and full play of material performance, can realize fine management and batch application by adopting factory manufacturing and assembly construction, has good social and economic benefits, and has wide application prospects in highways and municipal bridges.
In the steel box-concrete combined beam bridge structure, bridge deck load is firstly transmitted to cross beams between boxes and then transmitted to longitudinal main beams by the cross beams, so the steel box beam cross beams are different from the structural arrangement of common steel structure bridges and are main stress components of the bridges. Under the construction conditions that the span of the cross beam is large and the bridge deck is subjected to a one-time pouring process, the compression steel plates between the boxes need to resist the self weight of the bridge deck concrete, so that higher requirements on the strength and the rigidity of the compression steel plates are met. Usually, in order to improve the rigidity of the profiled steel sheet and avoid the downward deflection generated between the two cross beams in the process of pouring concrete on the bridge deck, a square steel transverse connection is arranged between the two cross beams to reinforce the profiled steel sheet between the boxes.
SUMMERY OF THE UTILITY MODEL
The utility model discloses on the basis of square steel horizontal connection reinforcement between the crossbeam, provide an interim device and support the square steel midspan of support to reach the effect that profiled sheet rigidity promotes again between the case. The device for improving the rigidity of the profiled steel sheet between the steel box girder and the steel box girder comprises a supporting steel stool, a U-shaped lacing wire and a reinforcing longitudinal beam. The supporting steel stool is formed by welding a plurality of supporting steel bars and a steel plate, the U-shaped lacing wire is formed by bending hot rolled plain steel bars, and the reinforcing longitudinal beam is formed by vertical double-splicing of I-shaped steel.
Preferably, the double-spliced I-shaped steel needs welding seams with a certain length for splicing besides spot welding and fixing, and the length of the I-shaped steel is not less than 5m.
Preferably, the supporting steel bars of the supporting steel stool are arranged above the cross beam between the boxes after passing through the sleeve, the number of the supporting steel bars is increased when necessary, or supporting points are reinforced, and the supporting steel bars must be perpendicular to the bottom surface of the supporting steel plate and the top surface of the cross beam, so that the supporting stability of the reinforcing longitudinal beam is ensured, and the side turning does not occur.
Preferably, a supporting steel stool is respectively arranged below two ends of the reinforcing longitudinal beam.
Preferably, U type lacing wire one end and square steel (arrange between the case crossbeam, be used for supporting profiled sheet's structure) welding, the other end and reinforcement longeron top welding, every section square steel top installation two U type lacing wires of arranging to the mouth, become the style of calligraphy after connecting. The U-shaped lacing wire and the junction of the square steel web plate and the top plate are welded by double-sided welding, the length of a welding line is not less than 100mm, and the welding line is full.
Through before bridge floor concrete placement, adopt the utility model discloses carry out the reinforcement, can effectively improve the intensity that supports the square steel, and then reach the effect that promotes bridge floor profiled sheet rigidity, avoid building the problem that produces the downward amount of deflection between two crossbeams of in-process. Because the steel stool and the cross beam are not solidified, the device can be dismantled after concrete pouring and forming of each bridge deck span, and can be recycled for multiple times.
Drawings
The following further description is made with reference to the accompanying drawings and detailed description:
fig. 1 is a front view of a device for increasing the rigidity of a profiled steel sheet between a steel box girder and a steel box girder in an embodiment of the present invention;
FIG. 1-1 is a cross-sectional view taken along line 1-1 of FIG. 1;
FIG. 1-2 is a cross-sectional view 2-2 of FIG. 1;
fig. 2 is a schematic layout view of the U-shaped lacing wire.
1-supporting steel stools, 11-supporting steel bars, 12-supporting steel plates, 2-square steel, 3-U-shaped tie bars and 4-reinforcing longitudinal beams.
Detailed Description
And (3) processing and installing a device for improving the rigidity of the profiled steel sheet between the steel box girder and the steel box girder according to the figure 1. Specifically, 6 are added
The supporting steel bars 11 and the supporting steel plates 12 with the thickness of 26mm are welded into a supporting steel stool 1 with the height of 300mm, and PVC pipes are sleeved outside the supporting steel bars 11 of the supporting steel stool 1 and are placed on a cross beam between boxes. 20H-shaped steel vertical double splices are adopted as the reinforcing longitudinal beam 4 and are placed on the supporting steel stool 1. After the longitudinal beam is stably supported, the square steel 2 and the reinforcing longitudinal beam 4 are connected in a double-face welding mode through the U-shaped tie bars 3 above the middle-span square steel 2 of the beam body, the machining size and the arrangement mode of the U-shaped tie bars 3 are shown in figure 2, and bridge deck concrete pouring and dismantling of the device are further completed subsequently. Can effectively improve the intensity of supporting the square steel through this device, and then reach the effect of promoting bridge floor profiled sheet rigidity, avoid the problem that produces the downward deflection between two crossbeams among the concrete placement process.
The utility model discloses a promote device of profiled sheet rigidity between steel case roof beam case, constitute including supporting steel stool, U type lacing wire, reinforcement longeron triplex. The supporting steel stool is formed by welding a plurality of supporting steel bars and a steel plate, the U-shaped lacing wire is formed by bending hot rolled plain steel bars, and the reinforcing longitudinal beam is formed by vertical double-splicing of I-shaped steel. Through settling this device before bridge floor concrete placement, can effectively improve the intensity of supporting the square steel, and then reach the effect that promotes bridge floor profiled sheet rigidity, avoid pouring the problem that produces the downward amount of deflection between two crossbeams of in-process.
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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A device for improving the rigidity of a profiled steel sheet between steel box girders and steel boxes is characterized by comprising a supporting steel stool (1), U-shaped tie bars (3) and reinforcing longitudinal beams (4); the reinforcing longitudinal beam (4) is formed by vertically splicing I-shaped steel, and the supporting steel stools (1) are respectively arranged below two ends of the reinforcing longitudinal beam (4); the U-shaped opening of the U-shaped lacing wire (3) faces the side face of the reinforcing longitudinal beam (4), and the reinforcing longitudinal beam (4) is positioned at the upper part in the U-shaped opening; the bottom end of the U-shaped lacing bar (3) is welded with the square steel (2) arranged between the cross beams between the boxes, and the top end of the U-shaped lacing bar is welded with the top end of the reinforcing longitudinal beam (4); two U-shaped lacing wires (3) which are arranged in parallel in a butt joint mode are arranged above each section of square steel (2) and are connected to form a square shape.
2. The device for improving the rigidity of the profiled steel sheet between the steel box girder and the steel box girder according to claim 1, wherein the U-shaped tie bar (3) comprises an upper transverse part, a vertical part and a lower transverse part which are connected in sequence, the lower transverse part is welded on the upper surface of the square steel (2), and the upper transverse part is welded with the top surface of the reinforcing longitudinal beam (4).
3. The device for improving the rigidity of the profiled steel sheet between the steel box girder and the steel box girder according to claim 1, wherein the supporting steel stool (1) is formed by welding a plurality of supporting steel bars (11) and supporting steel sheets (12), the supporting steel bars (11) of the supporting steel stool (1) are sleeved and then arranged above the cross beam between the boxes, and the supporting steel bars (11) are perpendicular to the bottom surface of the supporting steel sheets (12) and the top surface of the cross beam.
4. The device for improving the rigidity of the profiled steel sheet between the steel box girder and the steel box girder according to claim 1, wherein welding seams are welded on the connecting surface in sections, except for spot welding and fixing between the vertical double-spliced I-shaped steel, and the length of the I-shaped steel is not less than 5m.
5. The device for improving the rigidity of the profiled steel sheet between the steel box girder and the steel box girder is characterized in that the U-shaped lacing wire (3) is formed by bending hot rolled plain steel bars.
6. The device for improving the rigidity of the profiled steel sheet between the steel box girder and the steel box girder according to claim 1, wherein the U-shaped tie bar (3) is welded with the junction of the web plate and the top plate of the square steel (2), and the welding adopts double-sided welding with the welding seam length not less than 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221614617.9U CN218466349U (en) | 2022-06-27 | 2022-06-27 | Device for improving rigidity of profiled steel sheet between steel box girder and steel box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221614617.9U CN218466349U (en) | 2022-06-27 | 2022-06-27 | Device for improving rigidity of profiled steel sheet between steel box girder and steel box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218466349U true CN218466349U (en) | 2023-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221614617.9U Active CN218466349U (en) | 2022-06-27 | 2022-06-27 | Device for improving rigidity of profiled steel sheet between steel box girder and steel box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218466349U (en) |
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2022
- 2022-06-27 CN CN202221614617.9U patent/CN218466349U/en active Active
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