CN211368335U - Bridge small box girder transverse connection device - Google Patents
Bridge small box girder transverse connection device Download PDFInfo
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- CN211368335U CN211368335U CN201921883631.7U CN201921883631U CN211368335U CN 211368335 U CN211368335 U CN 211368335U CN 201921883631 U CN201921883631 U CN 201921883631U CN 211368335 U CN211368335 U CN 211368335U
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Abstract
The transverse connection device for the small box girder of the bridge comprises a bearing part and a limiting part, wherein the limiting part is circumferentially distributed around the bearing part and is connected to the small box girder; the bearing part comprises a fixed anchor bolt, a fixed support and two bearing steel plates which are respectively connected to the two ends of the fixed support, and the fixed anchor bolt is connected between the bearing steel plates and the small box girder. The device be used for the transverse connection between the bridge cell roof beam, be particularly useful for 20m stride the transverse connection between the cell roof beam and be a good selection of saving cost and time limit for a project, can be for providing reliable solution for transverse connection is weak between the cell roof beam, can effectively improve the wholeness between the cell roof beam, construction rapidly simultaneously, construction quality easily guarantees.
Description
Technical Field
The utility model belongs to the technical field of the bridge trabecula roof beam connects, especially, relate to a bridge trabecula roof beam lateral connection device.
Background
At the present stage, the road industry in China is gradually changed from a construction stage to a maintenance and reinforcement stage. In a bridge structure, particularly a bridge with a main beam structure of a prefabricated small box girder, the transverse connection of the box girder is weak.
In fact, in the 20m prefabricated small box girder, the transverse connection between the box girders is not considered, namely, no diaphragm is arranged, and the transverse connection is only carried out by virtue of the wet joints between the box girders, so that the pouring quality of the wet joints is uneven.
With the increasing traffic volume of roads, and the frequent occurrence of overloaded vehicles, the transverse connection between box girders is weak, so that the wet joint position is easy to crack, including the crack of a pavement layer, and water on the bridge deck is easy to permeate from the crack position, thereby endangering the safety of the bridge structure.
The traditional small box girder reinforcing method is a diaphragm plate reinforcing technology, the diaphragm plate reinforcing technology is a concrete cast-in-place method, the curing time is as long as 28 days after the concrete is poured, disturbance to the poured concrete is generated during the curing period, the construction conditions are harsh, and therefore the construction quality cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, excellent in use effect's little case roof beam lateral connection device of bridge.
In order to solve the technical problem, the utility model provides a following technical scheme: the bridge small box girder transverse connection device comprises a bearing part and a limiting part, wherein the limiting part is circumferentially distributed around the bearing part and is perpendicular to the bearing part, one end of the limiting part is connected to the small box girder, and the other end of the limiting part is suspended; the bearing part comprises a fixed anchor bolt, a fixed support and two bearing steel plates which are respectively connected to the two ends of the fixed support, and the fixed anchor bolt is connected between the bearing steel plates and the small box girder.
Anchor holes are reserved on the small box girder and the bearing steel plate, and the fixing anchor bolts are connected between the anchor holes of the small box girder and the bearing steel plate.
Spacing portion comprises spacing reinforcing bar, and spacing reinforcing bar sets up around bearing steel plate circumference.
The fixed support consists of I-beams, the I-beams comprise upper I-beams, lower I-beams and supporting I-beams, the upper I-beams are arranged in parallel to the lower I-beams, and the supporting I-beams are connected between the upper I-beams and the lower I-beams.
An oblique I-steel is further connected between the upper I-steel and the lower I-steel, one end of the oblique I-steel is connected with the middle point of the lower I-steel, and the other end of the oblique I-steel is connected with the end portion of the upper I-steel.
The length of the upper I-shaped steel is shorter than that of the lower I-shaped steel.
The bearing steel plate is obliquely arranged from bottom to top towards the direction of the fixed support.
Through the technical scheme, the beneficial effects of the utility model are that: the device be used for the transverse connection between the bridge cell roof beam, be particularly useful for 20m stride the transverse connection between the cell roof beam and be a good selection of saving cost and time limit for a project, can be for providing reliable solution for transverse connection is weak between the cell roof beam, can effectively improve the wholeness between the cell roof beam, construction rapidly simultaneously, construction quality easily guarantees. Meanwhile, the device has high stability and safer use process.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a load-bearing steel plate;
fig. 3 is a schematic view of the present invention.
Detailed Description
Bridge cell roof beam transverse connection device, as shown in fig. 1~3, including bearing part and spacing portion, the bearing part is used for realizing the connection of two adjacent cell roof beams 5 of bridge, bears the pulling force between two cell roof beams 5, and spacing portion is used for spacing bearing part, prevents to appear sliding.
The bearing part comprises a fixed support 4, the fixed support 4 is composed of I-shaped steel, and the I-shaped steel comprises an upper I-shaped steel 6, a lower I-shaped steel 7 and a supporting I-shaped steel 8.
Go up I-steel 6 and be on a parallel with I-steel 7 setting down, support I-steel 8 and connect between last I-steel 6 and I-steel 7 down, support I-steel 8 vertical setting, go up I-steel 6 and the equal level setting of I-steel 7 down. Meanwhile, the two ends of the supporting I-shaped steel 8 are respectively connected with the middle points of the upper I-shaped steel 6 and the lower I-shaped steel 7, so that the stress is uniform. The length of the upper I-shaped steel 6 is shorter than that of the lower I-shaped steel 7, so that the stress is uniform.
Two oblique H-beams 9 are further connected between the upper H-beam 6 and the lower H-beam 7, one ends of the oblique H-beams 9 are connected with the middle point of the lower H-beam 7, and the other ends of the oblique H-beams 9 are connected to the end portion of the upper H-beam 6. The fixing support 4 forms a triangular support through the upper I-shaped steel 6, the lower I-shaped steel 7, the supporting I-shaped steel 8 and the oblique I-shaped steel 9, and the stability is high. The upper I-beam 6, the lower I-beam 7, the supporting I-beam 8 and the oblique I-beam 9 are made of Q345c materials, and the service life is long.
Be provided with at fixed bolster 4 both ends and bear steel sheet 1, bear steel sheet 1 from supreme 4 direction slope settings to the fixed bolster, through the slope setting that bears steel sheet 1, improve the area of contact with little case roof beam 5, and then strengthen the atress between the two.
The bearing steel plate 1 is provided with a fixing anchor bolt 2, and the end part of the fixing anchor bolt 2 connected with the small box girder 5 is arranged in an upward inclined way. The connecting mode of the fixing anchor bolt 2 and the bearing steel plate 1 is as follows: an anchor hole is reserved on the bearing steel plate 1, and the fixing anchor bolt 2 is in threaded connection with the anchor hole. The tip and the small box girder 5 of fixed crab-bolt 2 are connected, and small box girder 5 is with fixed crab-bolt 2's connected mode is: an anchor hole is reserved on the small box girder 5, and the fixing anchor bolt 2 is screwed with the anchor hole on the small box girder 5.
Set up spacing portion along bearing 1 circumference of steel sheet, spacing portion comprises spacing reinforcing bar 3, and spacing reinforcing bar 3 sets up around bearing 1 circumference of steel sheet. 3 one ends of spacing reinforcing bar are connected on little case roof beam 5, and the 3 other ends of spacing reinforcing bar are unsettled, and the setting of spacing reinforcing bar 3 perpendicular to bearing steel plate 1. Can carry on spacingly to bearing steel sheet 1 through setting up spacing reinforcing bar 3, prevent to bear the phenomenon that sliding appears in steel sheet 1, improve whole transverse connection device's stability.
And chiseling a loose layer on the surface of the concrete around the position of the small box girder 5 needing to be reinforced after the position of the steel beam on the small box girder 5 is detected, and chiseling the surface of the concrete. Lofting is carried out to bearing steel sheet 1 position, evenly lays spacing reinforcing bar 2 around bearing steel sheet 1, installs bearing steel sheet 1 and fixes bearing steel sheet 1 well with fixed crab-bolt in lofting position department, guarantees that bearing steel sheet 1 is taut along the atress direction. And welding and reinforcing the installed bearing steel plate 1 into a whole by using a fixed support 4, and finally painting the whole device by using anticorrosive painting.
The device be used for the transverse connection between the bridge cell roof beam, be particularly useful for 20m stride the transverse connection between the cell roof beam and be a good selection of saving cost and time limit for a project, can be for providing reliable solution for transverse connection is weak between the cell roof beam, can effectively improve the wholeness between the cell roof beam, construction rapidly simultaneously, construction quality easily guarantees.
Claims (7)
1. Bridge trabecula roof beam lateral connection device, its characterized in that: the small box girder comprises a bearing part and a limiting part, wherein the limiting part is circumferentially distributed around the bearing part and is perpendicular to the bearing part, one end of the limiting part is connected to the small box girder, and the other end of the limiting part is suspended; the bearing part comprises a fixed anchor bolt, a fixed support and two bearing steel plates which are respectively connected to the two ends of the fixed support, and the fixed anchor bolt is connected between the bearing steel plates and the small box girder.
2. The bridge box girder transverse linkage device according to claim 1, wherein: anchor holes are reserved on the small box girder and the bearing steel plate, and the fixing anchor bolts are connected between the anchor holes of the small box girder and the bearing steel plate.
3. The bridge trabecular transverse link device of claim 2, wherein: spacing portion comprises spacing reinforcing bar, and spacing reinforcing bar sets up around bearing steel plate circumference.
4. The bridge trabecular transverse link device of claim 3, wherein: the fixed support consists of I-beams, the I-beams comprise upper I-beams, lower I-beams and supporting I-beams, the upper I-beams are arranged in parallel to the lower I-beams, and the supporting I-beams are connected between the upper I-beams and the lower I-beams.
5. The bridge girder transverse linkage device of claim 4, wherein: an oblique I-steel is further connected between the upper I-steel and the lower I-steel, one end of the oblique I-steel is connected with the middle point of the lower I-steel, and the other end of the oblique I-steel is connected with the end portion of the upper I-steel.
6. The bridge girder transverse linkage device of claim 5, wherein: the length of the upper I-shaped steel is shorter than that of the lower I-shaped steel.
7. The bridge box girder transverse communication device according to any one of claims 1 to 6, wherein: the bearing steel plate is obliquely arranged from bottom to top towards the direction of the fixed support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921883631.7U CN211368335U (en) | 2019-11-04 | 2019-11-04 | Bridge small box girder transverse connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921883631.7U CN211368335U (en) | 2019-11-04 | 2019-11-04 | Bridge small box girder transverse connection device |
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| Publication Number | Publication Date |
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| CN211368335U true CN211368335U (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921883631.7U Active CN211368335U (en) | 2019-11-04 | 2019-11-04 | Bridge small box girder transverse connection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047186A (en) * | 2021-03-24 | 2021-06-29 | 华东交通大学 | Bridge reinforcing apparatus |
-
2019
- 2019-11-04 CN CN201921883631.7U patent/CN211368335U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047186A (en) * | 2021-03-24 | 2021-06-29 | 华东交通大学 | Bridge reinforcing apparatus |
| CN113047186B (en) * | 2021-03-24 | 2022-08-30 | 华东交通大学 | Bridge reinforcing apparatus |
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