CN211006400U - Integral reinforcing structure for bearing force of single plate of bridge - Google Patents
Integral reinforcing structure for bearing force of single plate of bridge Download PDFInfo
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- CN211006400U CN211006400U CN201921923955.9U CN201921923955U CN211006400U CN 211006400 U CN211006400 U CN 211006400U CN 201921923955 U CN201921923955 U CN 201921923955U CN 211006400 U CN211006400 U CN 211006400U
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Abstract
The utility model discloses a whole reinforced structure of bridge veneer atress belongs to the bridge and consolidates the field. Including the edge of a wing channel-section steel have both sides steel flange, upper end opening and recess, the opening up and be in under the hinge joint, and hug closely in bridge plate lower part face, the inside reinforced concrete that is filled with of recess, recess boundary wall top is provided with the steel flange, is provided with the through-hole on the steel flange, and anchor bolt screw rod passes the through-hole and is fixed in bridge plate lower part face, and the steel flange side all is connected with the steel sheet, and the steel sheet is arranged along the hinge joint to longitudinal direction with the edge of a wing channel-section steel correspondingly, and the steel sheet is pasted in bridge plate lower part face. In the utility model, the steel plate is connected with the side edge of the steel flange, and the steel plate and the flange channel steel are correspondingly arranged along the hinge joint in the longitudinal direction, so that the single flange channel steel can be integrated into a whole through the steel plate, and the transverse integral shear resistance of the bottom of the whole bridge is greatly improved; the steel plate is adhered to the bridge plate, so that the steel plate and the bridge plate form integral stress, and the bending resistance of the bridge plate is improved.
Description
Technical Field
The invention relates to a bridge reinforcing technology, in particular to a reinforcing mechanism for single plate stress of a bridge.
Background
The hollow slab bridge forms a whole through the structure of hinge joint, reaches the purpose that whole atress jointly. However, the structure of the small hinge joint is easily damaged, so that the stress condition of the single plates of the bridge is easily formed, and finally the bridge structure is damaged. At present, in the existing reinforcing technology aiming at the hinge joint structural damage and the single plate stress, the gap formed by the hinge joint structural damage is difficult to be effectively processed, so that the integral reinforcing effect is influenced.
Aiming at reinforcing the gap at the hinge joint, the Chinese invention patent CN103174098B discloses a reinforcing method for treating the stress of a single plate at a section steel concrete, which comprises the following steps: pressing into U-shaped steel with flanges according to the length and the structure of the single-span bridge, wherein the steel flanges are provided with through holes; b. roughening the surface concrete of the bottom plate on two sides of the hinge joint of the hollow plate, and drilling holes on the bottom plate according to the hole positions of the flanges of the U-shaped steel flanges of the flanges; c, cleaning the drilled hole and implanting an anchoring screw into the through hole; d, anchoring and mounting flange U-shaped steel on the hollow slab; the method adopts the steel reinforced concrete reinforcement technology to reinforce the hollow slab from the two aspects of improving the whole stress and the single-beam bearing capacity, thereby not only improving the integrity and the transverse distribution of the load, but also improving the bearing capacity of the single beam, and the reinforcement technology has a limit on improving the transverse whole shear resistance of the bottom of the whole bridge.
Disclosure of Invention
Aiming at the prior art, the technical problem to be solved by the invention is to provide a finishing reinforcing structure for the stress of a small hinge joint hollow slab single plate, and the structure can greatly improve the transverse overall shear resistance of the reinforcing structure.
In order to solve the technical problem, the integral reinforcing structure for bearing the stress of the single plate of the bridge comprises flange channel steel, steel flanges, an upper end opening and a groove, wherein the flange channel steel is provided with two sides, the upper end opening and the groove, the opening is upward and is positioned under a hinge joint and is tightly attached to the lower surface of the bridge plate, reinforced concrete is filled in the groove, the top end of the side wall of the groove is provided with the steel flange, the steel flange is provided with a through hole, an anchoring bolt and a screw penetrate through the through hole to be fixed on the lower surface of the bridge plate, the side edges of the steel flange are connected with steel plates, the steel plates and the flange channel steel are correspondingly arranged along the hinge.
Preferably, the side edge of the flange channel steel groove inclines outwards.
Preferably, the inner side wall of the flange channel steel groove is provided with a shear nail.
Preferably, the flange channel steel is provided with rib plates at intervals, and the rib plates are vertically welded with the outer wall of the side edge of the groove and the lower wall of the steel flange.
Preferably, the upper reinforced concrete comprises longitudinal steel bars, U-shaped stirrups and concrete, the longitudinal steel bars are longitudinally arranged along the grooves, the longitudinal steel bars are arranged in the U-shaped stirrups and are in cross welding with the longitudinal steel bars, and two ends of each U-shaped stirrup are respectively arranged in the lower parts of the bridge plates 1 on two sides of each hinge joint.
Preferably, the vertical both ends of above-mentioned edge of a wing channel-section steel set up the shrouding, and recess upper portion is provided with the inlet pipe, and the inlet pipe passes the shrouding.
Preferably, the upper steel plate side wall and the steel flange side wall are integrally formed by welding.
Preferably, L-shaped hoops are arranged on two transverse sides of the bridge plate, the vertical side face of the L-shaped hoop is pasted on the side edge of the bridge plate, the transverse side face of the L-shaped hoop is pasted on the lower face of the steel plate on the outermost side of the bridge plate, the longitudinal steel pressing strip is pasted on the upper end of the vertical side face of the L-shaped hoop, and the L-shaped hoop, the longitudinal steel pressing strip and the steel plate are fixed on the bridge plate through anchoring bolts.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the steel plate is connected with the side edge of the steel flange, and the steel plate and the flange channel steel are correspondingly arranged along the hinge joint in the longitudinal direction, so that the single flange channel steel can be integrated into a whole through the steel plate, and the transverse integral shear resistance of the bottom of the whole bridge is greatly improved; and 2, the steel plate is adhered to the bridge plate, so that the steel plate and the bridge plate form integral stress, and the bending resistance of the bridge plate is improved.
Drawings
FIG. 1 is a schematic diagram of the transverse cross-sectional structure of the present invention.
Fig. 2 is a schematic perspective view of the bottom surface of the bridge plate of the present invention.
Detailed Description
The invention will now be further described in the following with reference to the accompanying drawings, in which reference is made to figures 1-2, in which embodiments of the invention are shown.
The utility model provides an integral reinforcement structure of bridge veneer atress, includes that edge of a wing channel-section steel 2 has both sides steel flange 21, upper end opening and recess, and the opening is up and be in under hinge 12, and hug closely in 1 lower part face of bridge plate. The interior of the groove is filled with reinforced concrete 22, and the top end of the side wall of the groove is provided with a steel flange 21. The steel flange 21 is provided with a through hole, and the screw of the anchor bolt 23 passes through the through hole and is fixed on the lower surface of the bridge plate 1. The upper wall of the steel flange 21 and the lower part of the bridge plate 1 are adhered together by glue injection, the side edge of the steel flange 21 is connected with the steel plates 3 and 32, the steel plates 3 and 32 and the flange channel steel 2 are correspondingly arranged along the hinge joint 12 in the longitudinal direction, so that the single flange channel steel 2 can be integrated into a whole through the steel plates 3 and 32, and the transverse integral shear resistance of the bottom of the whole bridge plate 1 is greatly improved. The steel plates 3 and 32 are adhered to the lower surface of the bridge plate 1, so that the steel plates 3 and 32 and the bridge plate 1 form integral stress, and the bending resistance of the bridge plate 1 is improved.
The side edge 24 of the groove of the flange channel steel 2 inclines towards the two outer sides.
And shear nails are arranged on the inner side wall of the groove of the flange channel steel 2.
The reinforced concrete 22 comprises longitudinal steel bars 221, U-shaped stirrups 222 and concrete, the longitudinal steel bars 221 are longitudinally arranged along the grooves, the longitudinal steel bars 221 are arranged in the U-shaped stirrups 222 and are in cross welding with the U-shaped stirrups 222, two ends of each U-shaped stirrup 222 are respectively arranged in the lower parts of the bridge slabs 1 on two sides of each hinge joint 12, and therefore the newly-added reinforced concrete and the original concrete of the bridge slabs are fully combined together to play a good role of a bridge.
The vertical both ends of above-mentioned edge of a wing channel-section steel 2 set up the shrouding, and recess upper portion is provided with inlet pipe 27, and inlet pipe 27 passes the shrouding, pours into edge of a wing channel-section steel 2 into with high-pressure concrete mud through inlet pipe 27 in.
The side wall of the steel plate 3 and the side wall of the steel flange 21 are welded into a whole.
L-shaped hoops 31 are arranged on two transverse sides of the bridge plate 1, the vertical side 311 of the L-shaped hoop 31 is adhered to the side edge of the bridge plate, the transverse side 312 of the L-shaped hoop 31 is adhered to the lower surface of the outermost steel plate 32 of the bridge plate 1, the longitudinal steel pressing strip 313 is adhered to the upper end of the vertical side 311 of the L-shaped hoop 31, and the L-shaped hoop 31, the longitudinal steel pressing strip 313 and the steel plate 3 are fixed on the bridge plate 1 through anchor bolts 314 and 315.
A method for reinforcing an integral reinforcing structure of a stressed bridge single plate comprises the following steps.
S1, pressing into flange channel steel according to the length and the structure of the single-span bridge.
S2, chiseling concrete on the surfaces of the bottom plates on two sides of the hinge joint of the bridge plate 1, and drilling holes in the bottom plates according to the hole positions of the steel flanges of the flange channel steel.
S3, two ends of the U-shaped stirrup 222 are respectively arranged in the lower parts of the bridge plates 1 at two sides of the hinge joint 12, and the longitudinal steel bar 221 is arranged in the U-shaped stirrup 222 and is in cross welding with the U-shaped stirrup 222.
And S4, cleaning and drilling holes, and smearing adhesive on the upper surface of the steel flange and the lower surface of the bridge plate 1.
And S5, enabling the through hole in the flange channel steel to correspond to the drilled hole, and enabling the anchoring bolt to penetrate through the through hole and be implanted into the drilled hole.
S6, the steel plate is adhered to the lower surface of the bridge plate, and the side wall of the steel plate 3 and the side wall of the steel flange 21 are welded to form a whole.
S7, the vertical side 311 of the L-shaped hoop 31 is adhered to the side edge of the bridge plate, the transverse side 312 of the L-shaped hoop 31 is adhered to the lower surface of the outermost steel plate 32 of the bridge plate 1, the longitudinal steel pressing strip 313 is adhered to the upper end of the vertical side 311 of the L-shaped hoop 31, and the L-shaped hoop 31, the longitudinal steel pressing strip 313 and the steel plate 3 are fixed on the bridge plate 1 through anchor bolts 314 and 315.
And S8, injecting concrete higher than the concrete into the flange channel steel through the feeding pipe.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides an integral reinforcement structure of bridge veneer atress which characterized in that: including the edge of a wing channel-section steel have both sides steel flange, upper end opening and recess, the opening up and be in under the hinge joint, and hug closely in bridge plate lower part face, the inside reinforced concrete that is filled with of recess, recess boundary wall top is provided with the steel flange, is provided with the through-hole on the steel flange, and anchor bolt screw rod passes the through-hole and is fixed in bridge plate lower part face, and the steel flange side all is connected with the steel sheet, and the steel sheet is arranged along the hinge joint to longitudinal direction with the edge of a wing channel-section steel correspondingly, and the steel sheet is pasted in bridge plate lower part face.
2. The integral stress-bearing reinforcing structure for the single plates of the bridge according to claim 1, wherein: the side edge of the flange channel steel groove inclines towards the two outer sides.
3. The integral stress-bearing reinforcing structure for the single plates of the bridge according to claim 1, wherein: and a shear nail is arranged on the inner side wall of the flange channel steel groove.
4. The integral stress-bearing reinforcing structure for the single plates of the bridge according to claim 1, wherein: ribs are arranged on the flange channel steel at intervals, and are vertically welded with the outer wall of the side edge of the groove and the lower wall of the steel flange.
5. The integral stress-bearing reinforcing structure for the single plates of the bridge according to claim 1, wherein: the reinforced concrete comprises longitudinal steel bars, U-shaped stirrups and concrete, the longitudinal steel bars are longitudinally arranged along the grooves, the longitudinal steel bars are arranged in the U-shaped stirrups and are in cross welding with the longitudinal steel bars, and two ends of each U-shaped stirrup are respectively arranged in the lower parts of the bridge plates 1 on two sides of each hinge joint.
6. The integral stress-bearing reinforcing structure for the single plates of the bridge according to claim 1, wherein: the vertical both ends of edge of a wing channel-section steel set up the shrouding, and recess upper portion is provided with the inlet pipe, and the inlet pipe passes the shrouding.
7. The integral stress-bearing reinforcing structure for the single plates of the bridge according to claim 1, wherein: the steel plate side wall and the steel flange side wall are integrally formed in a welding mode.
8. The integral stress-bearing bridge reinforcing structure of claim 1, wherein L-shaped hoops are arranged on two lateral sides of the bridge plate, the vertical side of the L-shaped hoop is adhered to the side of the bridge plate, the lateral side of the L-shaped hoop is adhered to the lower surface of the outermost steel plate of the bridge plate, the longitudinal steel pressing strip is adhered to the upper end of the vertical side of the L-shaped hoop, and the L-shaped hoop, the longitudinal steel pressing strip and the steel plate are fixed on the bridge plate through anchor bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921923955.9U CN211006400U (en) | 2019-11-09 | 2019-11-09 | Integral reinforcing structure for bearing force of single plate of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921923955.9U CN211006400U (en) | 2019-11-09 | 2019-11-09 | Integral reinforcing structure for bearing force of single plate of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211006400U true CN211006400U (en) | 2020-07-14 |
Family
ID=71481888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921923955.9U Expired - Fee Related CN211006400U (en) | 2019-11-09 | 2019-11-09 | Integral reinforcing structure for bearing force of single plate of bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211006400U (en) |
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2019
- 2019-11-09 CN CN201921923955.9U patent/CN211006400U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 Termination date: 20211109 |