CN210341637U - Prefabricated assembled bridge anticollision barrier - Google Patents
Prefabricated assembled bridge anticollision barrier Download PDFInfo
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- CN210341637U CN210341637U CN201921027129.6U CN201921027129U CN210341637U CN 210341637 U CN210341637 U CN 210341637U CN 201921027129 U CN201921027129 U CN 201921027129U CN 210341637 U CN210341637 U CN 210341637U
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Abstract
The utility model relates to a prefabricated bridge anti-collision guardrail which is sequentially laid along the length direction of a bridge in a segmented manner and comprises a prefabricated anti-collision guardrail and a prefabricated bridge deck; the prefabricated anti-collision guardrail comprises a concrete layer, common steel bars and angle steel, wherein the concrete layer forms a main body of the prefabricated anti-collision guardrail, the common steel bars are embedded in the concrete layer in advance, and the angle steel extending the whole length is arranged at the corner of the bottom of the vehicle-facing surface of the concrete layer; the prefabricated bridge deck comprises a deck body and a steel plate, wherein the steel plate is embedded in the deck body; the bottom of the prefabricated anti-collision guardrail is in clamping fit with the top of the prefabricated bridge deck plate, and the angle steel is fixedly connected with the steel plate. The prefabricated bridge anti-collision guardrail can be used as a side anti-collision guardrail and a central anti-collision guardrail. The utility model is suitable for an industrialization, standardized production, the construction of high-efficient assembled bridge is realized to fixed connection, the standardized operation of installation, belongs to bridge construction technical field.
Description
Technical Field
The invention relates to the technical field of bridge construction structures, in particular to a prefabricated bridge anti-collision guardrail.
Background
At present, the rapid and assembly type green bridge construction concept has long-term development, and the assembly type bridge structure is rapidly developed. The anti-collision guardrail is an important component of a bridge, and the bridge anti-collision guardrail at home and abroad basically adopts the construction process of on-site reinforcement and cast-in-place concrete construction. The existing process has the advantages of long construction period, time and labor waste, difficulty in controlling construction quality, and capability of causing concrete cracking if the quality cannot meet the standard requirement, increasing the risk of corrosion of internal reinforcing steel bars, seriously affecting the durability of guardrails and finally affecting the safety of bridges. The construction waste and noise generated in the construction site conflict with the concept of developing green bridge construction.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to: the prefabricated bridge anti-collision guardrail is convenient to construct and beneficial to standardized operation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a prefabricated bridge anti-collision guardrail is sequentially paved along the length direction of a bridge in a segmented manner and comprises a prefabricated anti-collision guardrail and a prefabricated bridge deck; the prefabricated anti-collision guardrail comprises a concrete layer, common steel bars and angle steel, wherein the concrete layer forms a main body of the prefabricated anti-collision guardrail, the common steel bars are embedded in the concrete layer in advance, and the angle steel extending the whole length is arranged at the corner of the bottom of the vehicle-facing surface of the concrete layer; the prefabricated bridge deck comprises a deck body and a steel plate, wherein the steel plate is embedded in the deck body; the bottom of the prefabricated anti-collision guardrail is in clamping fit with the top of the prefabricated bridge deck, and the angle steel is fixedly connected with the steel plate in a welding mode.
Preferably, when the side anti-collision guardrail is used as a side anti-collision guardrail, the side anti-collision guardrail is arranged at the side of a bridge; the prefabricated anti-collision guardrail comprises a metal corrugated pipe, and the metal corrugated pipe penetrates through and is embedded in the concrete layer; the prefabricated bridge deck comprises connecting steel bars which extend upwards from the deck body; the connecting reinforcing steel bars extend into the metal corrugated pipe, and a grouting material layer is arranged between the connecting reinforcing steel bars and the metal corrugated pipe; the concrete layer outside bottom corner is equipped with the dog groove, and the upper end of panel body upwards extends and forms the dog, and the dog imbeds the dog inslot.
Preferably, the common steel bars comprise construction steel bars and stirrups, the construction steel bars fix the metal corrugated pipes, and the stirrups bind the construction steel bars.
Preferably, a mortar cushion layer is paved between the prefabricated anti-collision guardrail and the prefabricated bridge deck; the grouting material layer adopts high-strength cement mortar.
As an optimization, a water-swelling water stop strip is arranged between the upper end of the stop block and the stop block groove, and the water-swelling water stop strip is arranged along the length direction of the prefabricated bridge anti-collision guardrail.
Preferably, when the anti-collision guardrail is used as a central anti-collision guardrail, the anti-collision guardrail is arranged in the middle of a bridge; the prefabricated anti-collision guardrail comprises shear grooves positioned at the left, right and middle positions of the bottom, the prefabricated bridge deck comprises shear keys extending upwards from the deck body, and the shear keys are embedded into the shear grooves; concrete layer left and right sides bottom corner all is equipped with the angle steel, and the panel body is equipped with two lines of steel sheets, and two lines of steel sheets set up with two angle steel one-to-one.
Preferably, an epoxy resin adhesive layer is laid between the prefabricated anti-collision guardrail and the prefabricated bridge deck; prefabricated anticollision barrier is equipped with out the gluey groove, goes out gluey trench in prefabricated anticollision barrier's bottom, goes out the gluey groove and runs through prefabricated anticollision barrier about prefabricated anticollision barrier bottom surface.
Preferably, PVC pipes extending along the length direction are pre-embedded in the prefabricated anti-collision guardrail; in all prefabricated assembled bridge anticollision barriers of same stride, pre-buried waterproof terminal box between the adjacent prefabricated assembled bridge anticollision barriers, waterproof terminal box and PVC pipe intercommunication.
Preferably, the steel plate is welded to the panel body through the reinforcing steel bars on both sides; the angle steel and the steel plate are welded and connected by groove welding.
As an optimization, 20mm structural joints are reserved between adjacent prefabricated bridge anti-collision guardrails of the same span, and epoxy mortar is filled in the structural joints.
The invention has the following advantages:
1. the prefabricated bridge anti-collision guardrail is fixed in a connection mode, so that a standardized installation operation procedure is easy to realize, and the construction of a high-efficiency fabricated bridge is realized; only hoisting is needed when the concrete is transported to the site, and the construction requirement of green and environmental protection is also met.
2. The prefabricated bridge anti-collision guardrail realizes industrialized and standardized production in a prefabrication factory, the quality can be controlled more effectively, the durability of the guardrail is improved, and the safe use of the bridge is also ensured.
3. Through dog and dog groove connection, or shear force key and shear force groove connection, cooperation angle steel and steel sheet fixed connection form wholly with the bridge floor to the effectual horizontal force that bears prefabricated anticollision fence provides probably for the prefabrication of anticollision fence.
4. When the anti-collision guardrail is used as an edge anti-collision guardrail, the metal corrugated pipe and the connecting steel bar are added to be matched, so that the metal corrugated pipe and the bridge floor are connected to form a whole.
And 5, a PVC pipe and a waterproof junction box structure are added, so that the subsequent street lamp can be conveniently installed and laid on a circuit.
6. The water-swelling water stop strip is arranged, the full length is laid between the bridge deck slab and the anti-collision fence, and when a 10mm mortar cushion layer is laid, the mortar can be prevented from leaking outwards.
7. The mortar cushion layer is arranged, and the epoxy resin adhesive layer structure is laid to play a role in leveling and adhering the anti-collision fence and the bridge deck.
Drawings
FIG. 1 is a schematic view of the structure of the present invention as used in an edge crash barrier.
Fig. 2 is a cross-sectional view a-a in fig. 1.
Figure 3 is a schematic view of the structure of the present invention as used in a center crash barrier.
Fig. 4 is a cross-sectional view B-B in fig. 3.
Fig. 5 is a cross-sectional view of C-C in fig. 3.
Wherein, 1 is prefabricated crash barrier, 2 is prefabricated decking, 3 is corrugated metal pipe, 4 is the angle steel, 5 is the joint reinforcement, 6 is the steel sheet, 7 is the mortar bed course, 8 is the stagnant water strip that meets water inflation, 9 is epoxy mortar, 10 is the PVC pipe, 11 is waterproof terminal box, 12 is the epoxy glue film, 13 is out the gluey groove.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
Example one
The utility model provides a prefabricated assembly type bridge anticollision barrier, when the guardrail is hit as the frontier defense, sets up the side at the bridge, and the length direction along the bridge is in proper order the segmentation to be laid. The prefabricated bridge anti-collision guardrail comprises a prefabricated anti-collision guardrail body and a prefabricated bridge deck.
The prefabricated anti-collision guardrail comprises a concrete layer, common steel bars, angle steel, metal corrugated pipes and a stop block groove, and is integrally prefabricated and delivered out of a factory. The concrete layer forms a main body of the prefabricated anti-collision guardrail, common steel bars are embedded in the concrete layer, and angle steel extending the whole length is arranged at the corner of the bottom of the vehicle facing surface of the concrete layer; the metal corrugated pipe penetrates through and is pre-embedded in the concrete layer, and the top and the bottom of the metal corrugated pipe are both provided with openings; the corner at the bottom of the outer side of the concrete layer is provided with a stop block groove extending in the length direction; the common steel bars comprise construction steel bars and stirrups, the construction steel bars fix the metal corrugated pipes, and the stirrups bind the construction steel bars.
The prefabricated bridge deck comprises a deck slab body, steel plates, connecting steel bars and stop blocks, and is integrally prefabricated and leaves a factory. The steel plate is pre-embedded in the panel body and welded on the two sides of the panel body through the steel bars; the connecting steel bars extend upwards from the panel body; the stop block is formed by upward extending the upper end of the panel body and is matched with the stop block groove to resist the horizontal thrust of the prefabricated anti-collision guardrail.
The installation method comprises the following steps:
the method comprises the steps of firstly setting a mortar cushion layer at a corresponding position above a prefabricated bridge deck, hoisting the prefabricated anti-collision guardrail and inserting connecting steel bars into a metal corrugated pipe, then pouring grouting material through the top opening of the metal corrugated pipe, preferably selecting high-strength cement mortar, enabling the length of the connecting steel bars inserted into the metal corrugated pipe to meet the requirement of anchoring length, and trowelling the surface of the prefabricated anti-collision guardrail with the mortar after grouting. When the metal corrugated pipe is in butt joint with the connecting steel bar, the stop block is also clamped with the stop block groove.
And after grouting is finished, groove welding is adopted for the pre-buried steel plates and the angle steels of the prefabricated bridge deck, the depth of the groove is 12mm, the angle of the groove is 45 degrees, and the concrete flat stones are cast in situ after the connecting steel plates are subjected to antiseptic treatment.
Be equipped with water inflation sealing rod between the upper end of dog and the dog groove, water inflation sealing rod leads to long the arranging along the length direction of prefabricated assembled bridge anticollision barrier.
20mm structural joints are reserved between adjacent prefabricated bridge anti-collision guardrails of the same span, and epoxy mortar is filled in the structural joints.
Example two
The utility model provides a prefabricated assembled bridge anticollision barrier, when as central anticollision barrier, sets up at the middle part of bridge, and the length direction along the bridge is in proper order the segmentation and is laid. The prefabricated bridge anti-collision guardrail comprises a prefabricated anti-collision guardrail body and a prefabricated bridge deck.
The prefabricated anti-collision guardrail comprises a concrete layer, common steel bars, angle steel and a shear groove, and is integrally prefabricated and delivered out of a factory. The concrete layer forms a main body of the prefabricated anti-collision guardrail, common steel bars are embedded in the concrete layer, and angle steel extending the whole length is arranged at the bottom corners of the left side and the right side of the concrete layer; the left and right middle positions of the bottom of the concrete layer are provided with shear grooves.
The prefabricated bridge deck comprises a deck body, a steel plate and shear keys, and is integrally prefabricated and delivered out of a factory. Two rows of steel plates are embedded in the panel body and welded on the two sides of the panel body through reinforcing steel bars; the shear key is formed by upward extending the upper end of the panel body and is matched with the shear groove to resist the horizontal thrust of the prefabricated anti-collision guardrail.
An epoxy resin adhesive layer is laid between the prefabricated anti-collision guardrail and the prefabricated bridge deck; the part of the prefabricated bridge anti-collision guardrail is provided with a glue outlet groove, the glue outlet groove is positioned at the bottom of the prefabricated anti-collision guardrail, and the glue outlet groove penetrates through the prefabricated anti-collision guardrail left and right; in all prefabricated assembled bridge anticollision barriers of same stride, contain out glue groove with do not contain out the prefabricated assembled bridge anticollision barriers one by one interval setting of glue groove. And a glue joint is reserved between the bottom surface of the prefabricated anti-collision guardrail and the top surface of the prefabricated bridge deck, and the glue joint is preferably 3 mm.
PVC pipes extending along the length direction are pre-embedded in the prefabricated anti-collision guardrail; in all prefabricated assembled bridge anticollision barriers of same stride, pre-buried waterproof terminal box between the adjacent prefabricated assembled bridge anticollision barriers, waterproof terminal box and PVC pipe intercommunication.
The installation method comprises the following steps:
firstly, uniformly smearing epoxy resin glue on the top surface corresponding to the prefabricated bridge deck slab, wherein the thickness of the epoxy resin glue is not less than 3mm, then hoisting the prefabricated anti-collision guardrail and aligning the shear groove with the shear key, extruding the epoxy resin glue by utilizing the dead weight of the prefabricated anti-collision guardrail and the glue outlet groove, and curing the epoxy resin glue to form an epoxy resin glue layer.
After the glue pressing is finished, groove welding is adopted for the steel plate and the angle steel, the depth of the groove is 12mm, and the angle of the groove is 45 degrees.
The PVC pipe is also pre-buried in the prefabricated anti-collision guardrail, so that wires such as street lamp wires or communication optical cables can be conveniently placed. And a waterproof junction box is embedded in the position between the adjacent guardrails.
20mm structural joints are reserved between adjacent prefabricated bridge anti-collision guardrails of the same span, and epoxy mortar is filled in the structural joints.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. The utility model provides a prefabricated bridge anticollision barrier, is laid along the length direction of bridge segmentation in proper order, its characterized in that: the anti-collision device comprises a prefabricated anti-collision guardrail and a prefabricated bridge deck; the prefabricated anti-collision guardrail comprises a concrete layer, common steel bars and angle steel, wherein the concrete layer forms a main body of the prefabricated anti-collision guardrail, the common steel bars are embedded in the concrete layer in advance, and the angle steel extending the whole length is arranged at the corner of the bottom of the vehicle-facing surface of the concrete layer; the prefabricated bridge deck comprises a deck body and a steel plate, wherein the steel plate is embedded in the deck body; the bottom of the prefabricated anti-collision guardrail is in clamping fit with the top of the prefabricated bridge deck, and the angle steel is fixedly connected with the steel plate in a welding mode.
2. A prefabricated assembled bridge crash barrier according to claim 1, wherein: when the bridge is used as an edge anti-collision guardrail, the bridge is arranged on the side edge of the bridge; the prefabricated anti-collision guardrail comprises a metal corrugated pipe, and the metal corrugated pipe penetrates through and is embedded in the concrete layer; the prefabricated bridge deck comprises connecting steel bars which extend upwards from the deck body; the connecting reinforcing steel bars extend into the metal corrugated pipe, and a grouting material layer is arranged between the connecting reinforcing steel bars and the metal corrugated pipe; the concrete layer outside bottom corner is equipped with the dog groove, and the upper end of panel body upwards extends and forms the dog, and the dog imbeds the dog inslot.
3. A prefabricated assembled bridge crash barrier according to claim 2, wherein: the common steel bars comprise construction steel bars and stirrups, the construction steel bars fix the metal corrugated pipes, and the stirrups bind the construction steel bars.
4. A prefabricated assembled bridge crash barrier according to claim 2, wherein: a mortar cushion layer is laid between the prefabricated anti-collision guardrail and the prefabricated bridge deck; the grouting material layer adopts high-strength cement mortar.
5. A prefabricated assembled bridge crash barrier according to claim 2, wherein: be equipped with water inflation sealing rod between the upper end of dog and the dog groove, water inflation sealing rod leads to long the arranging along the length direction of prefabricated assembled bridge anticollision barrier.
6. A prefabricated assembled bridge crash barrier according to claim 1, wherein: when the anti-collision guardrail is used as a central anti-collision guardrail, the anti-collision guardrail is arranged in the middle of a bridge; the prefabricated anti-collision guardrail comprises shear grooves positioned at the left, right and middle positions of the bottom, the prefabricated bridge deck comprises shear keys extending upwards from the deck body, and the shear keys are embedded into the shear grooves; concrete layer left and right sides bottom corner all is equipped with the angle steel, and the panel body is equipped with two lines of steel sheets, and two lines of steel sheets set up with two angle steel one-to-one.
7. A prefabricated assembled bridge crash barrier according to claim 6, wherein:
an epoxy resin adhesive layer is laid between the prefabricated anti-collision guardrail and the prefabricated bridge deck;
prefabricated anticollision barrier is equipped with out the gluey groove, goes out gluey trench in prefabricated anticollision barrier's bottom, goes out the gluey groove and runs through prefabricated anticollision barrier about prefabricated anticollision barrier bottom surface.
8. A prefabricated assembled bridge crash barrier according to claim 6, wherein:
PVC pipes extending along the length direction are pre-embedded in the prefabricated anti-collision guardrail;
in all prefabricated assembled bridge anticollision barriers of same stride, pre-buried waterproof terminal box between the adjacent prefabricated assembled bridge anticollision barriers, waterproof terminal box and PVC pipe intercommunication.
9. A prefabricated assembly type bridge crash barrier according to any one of claims 1 to 8, wherein: the steel plate is welded on the panel body through the two sides of the steel bar; the angle steel and the steel plate are welded and connected by groove welding.
10. A prefabricated assembly type bridge crash barrier according to any one of claims 1 to 8, wherein: 20mm structural joints are reserved between adjacent prefabricated bridge anti-collision guardrails of the same span, and epoxy mortar is filled in the structural joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921027129.6U CN210341637U (en) | 2019-07-03 | 2019-07-03 | Prefabricated assembled bridge anticollision barrier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921027129.6U CN210341637U (en) | 2019-07-03 | 2019-07-03 | Prefabricated assembled bridge anticollision barrier |
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| Publication Number | Publication Date |
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| CN210341637U true CN210341637U (en) | 2020-04-17 |
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| CN201921027129.6U Active CN210341637U (en) | 2019-07-03 | 2019-07-03 | Prefabricated assembled bridge anticollision barrier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205931A (en) * | 2019-07-03 | 2019-09-06 | 广州市市政工程机械施工有限公司 | A kind of prefabricated assembled Collison fence for bridge |
| CN113322824A (en) * | 2021-06-15 | 2021-08-31 | 山西高速集团朔神有限责任公司 | Fabricated anti-collision wall applied to high-grade road and construction method thereof |
-
2019
- 2019-07-03 CN CN201921027129.6U patent/CN210341637U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205931A (en) * | 2019-07-03 | 2019-09-06 | 广州市市政工程机械施工有限公司 | A kind of prefabricated assembled Collison fence for bridge |
| CN113322824A (en) * | 2021-06-15 | 2021-08-31 | 山西高速集团朔神有限责任公司 | Fabricated anti-collision wall applied to high-grade road and construction method thereof |
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