CN217231458U - Device for bridge expansion joint between concrete box girder and steel box girder - Google Patents
Device for bridge expansion joint between concrete box girder and steel box girder Download PDFInfo
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- CN217231458U CN217231458U CN202220738482.0U CN202220738482U CN217231458U CN 217231458 U CN217231458 U CN 217231458U CN 202220738482 U CN202220738482 U CN 202220738482U CN 217231458 U CN217231458 U CN 217231458U
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Abstract
The utility model discloses a device that is used for bridge expansion joint between concrete box girder and steel box girder, including the installation steel sheet, the ball-type support, the pre-compaction spring, stride seam fishback, the connecting steel sheet, fixed fishback, drain bar and U type crab-bolt, the installation steel sheet welds on the longitudinal reinforcement in the connecting reinforcement in the roof beam body, the undersetting board of ball-type support welds on the installation steel sheet, the upper bracket board of ball-type support welds on striding seam fishback, on the pre-compaction spring, lower both ends correspond to weld on striding seam fishback and installation steel sheet, the type is pour in the roof beam body along the expansion joint length direction, the connecting steel sheet passes through the bolt and installs on the support arm in each U type crab-bolt, fixed fishback passes through the bolt and installs on another support arm in each U type crab-bolt, the drain bar both ends correspond to weld on the connecting reinforcement in pre-compaction spring and the roof beam body. Through setting up ball-type support and pre-compaction spring in this application to cushion pressure and the slip frictional force that the vehicle went to bring well.
Description
Technical Field
The utility model relates to an expansion joint construction technical field especially relates to a device that is used for bridge expansion joint between concrete box girder and steel box girder.
Background
In order to meet the requirement of bridge deck deformation, expansion joints are usually arranged between two beam ends, between the beam ends and an abutment or at the hinged position of a bridge, and the expansion joints are required to be freely telescopic in two directions parallel to and perpendicular to the axis of the bridge, so that smooth running, no jump and no noise are ensured when a vehicle runs.
Different from a single concrete box girder and a single steel box girder, the concrete and steel materials have different expansion and contraction characteristics and different temperature influence degrees, and the conventional expansion joint cannot meet the expansion and contraction requirement of a combined bridge.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention provides a device for an expansion joint between a concrete box girder and a steel box girder, which aims to balance the stress on the horizontal and vertical directions when a vehicle drives across the expansion joint, and achieve a stable effect.
The specific technical scheme is as follows:
the utility model provides a device that is used for bridge expansion joint between concrete box girder and steel box girder, such characteristic has, including the installation steel sheet, the ball-type support, pre-compaction spring, stride seam fishback, the connecting steel sheet, fixed fishback, drain bar and U type crab-bolt, the installation steel sheet welds on the longitudinal reinforcement among the connecting reinforcement in the roof beam body, the lower support board of ball-type support welds on the installation steel sheet, the upper bracket board of ball-type support welds on striding seam fishback, on pre-compaction spring, lower both ends correspond to weld on striding seam fishback and installation steel sheet, type crab-bolt is pour in the roof beam body along the expansion joint length direction, the connecting steel sheet passes through the bolt and installs on a support arm in each U type crab-bolt, fixed fishback passes through the bolt and installs on another support arm in each U type crab-bolt, the drain bar both ends correspond to weld on the connecting reinforcement in pre-compaction spring and the roof beam body.
The device for the bridge expansion joint between the concrete box girder and the steel box girder has the characteristic that the spherical support is a one-way compression-resistant spherical support.
The device for the bridge expansion joint between the concrete box girder and the steel box girder also has the characteristic that the connecting steel plate is made of wear-resistant mounting steel plates.
The beneficial effect of above-mentioned scheme is:
through setting up ball-type support and pre-compaction spring in this application to cushion pressure and the sliding friction force that the vehicle went to bring well, thereby solve between concrete member, the steel member box roof beam because of the material characteristic difference under the deformation tensile that factors such as material self shrinkage deformation, temperature variation produced.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus provided in an embodiment of the present invention.
In the drawings: 1. installing a steel plate; 2. a spherical support; 3. pre-pressing a spring; 4. a seam crossing comb plate; 5. connecting steel plates; 6. fixing the comb plate; 7. a drain plate; 8. a U-shaped anchor bolt; 9. a beam body; 10. longitudinal reinforcing steel bars.
Detailed Description
The technical solutions in the embodiments of the present invention will be described below clearly and completely in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the following specific examples, which should not be construed as limiting the invention.
As shown in fig. 1, the device provided in the embodiment of the present invention comprises an installation steel plate 1, a ball-shaped support 2, a pre-pressing spring 3, a cross-seam comb plate 4, a connection steel plate 5, a fixed comb plate 6, a drainage plate 7 and a U-shaped anchor bolt 8, wherein the installation steel plate 1 is welded on a longitudinal steel bar 10 in the connection steel bar in a beam body 9, a lower support plate of the ball-shaped support 2 is welded on the installation steel plate 1, an upper support plate of the ball-shaped support 2 is welded on the cross-seam comb plate 4, the upper and lower ends of the pre-pressing spring 3 are correspondingly welded on the cross-seam comb plate 4 and the installation steel plate 1, the U-shaped anchor bolt 8 is poured in the beam body 9 along the length direction of the expansion seam, connecting plate 5 passes through the bolt and installs on a support arm in each U type crab-bolt 8, and fixed fishback 6 passes through the bolt and installs on another support arm in each U type crab- bolt 8, and 7 both ends of drain bar are corresponding to be welded on the connecting reinforcement in pre-compaction spring 3 and the roof beam body 9.
Through setting up pre-compaction spring 3 in this application, aim at the ascending atress of vertical direction when balanced vehicle drives over the expansion joint.
Consider that the vehicle traveles and can produce horizontal direction frictional force when expansion joint fishback department, therefore set up ball support 2 in this application in 4 below the fishback of striding seam fishback to utilize 2 self characteristics of ball support to pull through flexible and press and carry out the balanced atress of horizontal direction.
Consider that fixed fishback 6 below is reinforced concrete structure, because the last surface course of carrying on of reinforced concrete structure is handled, so the friction of vehicle when fishback 6 can produce the loss to the structure, therefore for the gaining in strength, also for reducing the structural loss, the utility model discloses well connecting steel plate 5 is made by wear-resisting steel sheet.
The utility model discloses in above-mentioned construction equipment's construction method does:
1) installing the precast beam body 9 in place according to a drawing;
2) welding bolts and reinforcing steel bars according to a drawing, laying the reinforcing steel bars layer by layer, welding the installation steel plates 1 on the longitudinal reinforcing steel bars 10, and welding the U-shaped anchor bolts 8 on the embedded reinforcing steel bars in the precast beam body 9;
3) welding the support and the pre-pressing spring 3 on the installation steel plate 1, and then correspondingly welding two ends of the drainage plate 7 on the pre-pressing spring 3 and the connecting steel bars in the beam body 9;
4) the connecting steel plate 5 is arranged on one support arm of each U-shaped anchor bolt 8 through a bolt, and the fixed comb plate 6 is arranged on the other support arm of each U-shaped anchor bolt 8 through a bolt;
5) the seam-crossing comb plate 4 is fixed on the pre-pressing spring 3 through bolts;
6) and (6) pouring concrete.
From the consideration of structural safety, the utility model discloses in utilize the splice bar to be fixed in the device corresponding part connection on the roof beam body.
The above is merely a preferred embodiment of the present invention, and not intended to limit the scope and the range of the present invention, and those skilled in the art should be able to realize that all the equivalent substitutions and obvious changes made by the present invention description should be included in the scope of the present invention.
Claims (3)
1. A device for a bridge expansion joint between a concrete box girder and a steel box girder is characterized by comprising an installation steel plate, a spherical support, a prepressing spring, a seam crossing comb plate, a connecting steel plate, a fixed comb plate, a drainage plate and a U-shaped anchor bolt, the mounting steel plate is welded on the longitudinal steel bar in the connecting steel bar in the beam body, the lower support plate of the spherical support is welded on the mounting steel plate, the upper support plate of the spherical support is welded on the seam crossing comb plate, the upper end and the lower end of the pre-pressing spring are correspondingly welded on the seam crossing comb plate and the mounting steel plate, the U-shaped anchor bolts are poured in the beam body along the length direction of the expansion joint, the connecting steel plate is arranged on one supporting arm in each U-shaped anchor bolt through bolts, the fixed comb plate is installed on the other support arm in the U-shaped anchor bolt through bolts, and the two ends of the drainage plate are correspondingly welded on the connecting steel bars in the pre-pressing springs and the beam body.
2. The apparatus according to claim 1, wherein said spherical bearing is a one-way compression-resistant spherical bearing.
3. The apparatus for a bridge expansion joint between a concrete box girder and a steel box girder according to claim 1, wherein the connection steel plate is made of a wear-resistant steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220738482.0U CN217231458U (en) | 2022-03-31 | 2022-03-31 | Device for bridge expansion joint between concrete box girder and steel box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220738482.0U CN217231458U (en) | 2022-03-31 | 2022-03-31 | Device for bridge expansion joint between concrete box girder and steel box girder |
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| Publication Number | Publication Date |
|---|---|
| CN217231458U true CN217231458U (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220738482.0U Active CN217231458U (en) | 2022-03-31 | 2022-03-31 | Device for bridge expansion joint between concrete box girder and steel box girder |
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| CN (1) | CN217231458U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115961544A (en) * | 2023-01-16 | 2023-04-14 | 黑龙江鑫交研桥梁科技开发有限公司 | Elastomer and assembled expansion device suitable for small and medium-span bridges |
-
2022
- 2022-03-31 CN CN202220738482.0U patent/CN217231458U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115961544A (en) * | 2023-01-16 | 2023-04-14 | 黑龙江鑫交研桥梁科技开发有限公司 | Elastomer and assembled expansion device suitable for small and medium-span bridges |
| CN115961544B (en) * | 2023-01-16 | 2023-08-18 | 黑龙江鑫交研桥梁科技开发有限公司 | Elastomer and assembled telescopic device suitable for middle-small span bridge |
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