CN110820553A - Combined prefabricated bridge guardrail - Google Patents
Combined prefabricated bridge guardrail Download PDFInfo
- Publication number
- CN110820553A CN110820553A CN201911047814.XA CN201911047814A CN110820553A CN 110820553 A CN110820553 A CN 110820553A CN 201911047814 A CN201911047814 A CN 201911047814A CN 110820553 A CN110820553 A CN 110820553A
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- guardrail
- wall body
- bridge
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 153
- 239000010959 steel Substances 0.000 claims abstract description 153
- 239000004567 concrete Substances 0.000 claims abstract description 46
- 238000010276 construction Methods 0.000 claims abstract description 28
- 230000004888 barrier function Effects 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000005286 illumination Methods 0.000 claims abstract description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 23
- 238000003466 welding Methods 0.000 claims description 6
- 239000011083 cement mortar Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000009417 prefabrication Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000011178 precast concrete Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The utility model provides a modular prefabricated bridge guardrail, contains concrete anticollision wall body, steel construction stand, steel anticollision barrier, steel pipe guardrail and concrete link plate, and concrete anticollision wall body is prefabricated in the mill, satisfies the anticollision requirement. The steel structure upright post plays a role in fixing the steel pipe beam, and the steel anti-collision guardrail plays a role in anti-collision beam; the steel pipe guardrail is provided with the LED lamp strip which plays a role in road illumination. There is a longitudinal joint with the bridge floor side after the concrete anticollision wall body installation is accomplished, for whole pleasing to the eye, uses the concrete link plate to shelter from, and the link plate plays the effect of dripping simultaneously. The combined type bridge guardrail is novel, is prefabricated in a factory and installed on site, and meanwhile, the guardrail lamp and the anti-collision guardrail are combined, so that a bridge high-pole lamp and a guardrail outer backpack are omitted, the whole construction period of a bridge can be saved, the line type of the prefabricated part is more attractive, the prefabricated part can be produced in batch, the combined type bridge guardrail is suitable for an elevated bridge on a municipal road, and the economic benefit is higher.
Description
Technical Field
The invention relates to the field of bridges, in particular to a combined prefabricated bridge guardrail.
Background
At present, the anti-collision guardrail in the municipal bridge engineering can be divided into a reinforced concrete guardrail, a steel structure guardrail and a combined guardrail according to materials. Wherein most bridge anticollision barrier construction adopts waits to carry out cast in situ after the girder construction is accomplished. According to the implementation experience of the existing project, the cast-in-place reinforced concrete crash barrier has the defects of substandard appearance quality, low construction speed and the like.
At the present stage, along with the popularization of the prefabrication and assembly technology, the prefabrication and assembly technology of the bridge anti-collision guardrail has wider application prospect.
Meanwhile, road lighting in the municipal bridge engineering basically adopts a pole setting street lamp form at present, and for designing a pole setting street lamp foundation, the bridge anti-collision guardrail adopts an outer side backpack form, so that the appearance of the whole outer vertical surface of the bridge is influenced, and the viaduct is not attractive, so that the form of combining lighting with the anti-collision guardrail can be applied to engineering practice.
The guardrail adopts a combined form, the anti-collision wall body adopts precast concrete components, and the end part of the anti-collision wall body is provided with an anti-collision steel beam so as to meet the requirement of a standard combined guardrail. Meanwhile, the top of the LED road lamp is additionally provided with a cross beam, an LED lamp strip is arranged in the beam for road illumination, and a concrete hanging plate is arranged on the outer side of the beam.
Disclosure of Invention
The invention provides a combined prefabricated bridge guardrail, wherein a concrete anti-collision wall body part of the combined guardrail is prefabricated in a factory and is installed and constructed on site, so that the construction period of the bridge anti-collision guardrail can be shortened.
In order to achieve the above object, the present invention provides a combined prefabricated bridge guardrail, characterized in that the prefabricated guardrail comprises:
the prefabricated reinforced concrete wall body is characterized in that an inner side embedded steel plate is embedded on the inner side of the bottom of the prefabricated reinforced concrete wall body, an outer side embedded steel plate is embedded on the outer side, U-shaped steel bars are embedded on the top of the concrete anti-collision wall body, and the upper ends of the U-shaped steel bars are exposed out of the wall body and are provided with thread sections;
the steel structure upright post comprises a bracket and a base, and bolt holes are reserved in the bracket and the base;
a steel crash barrier;
the steel pipe guardrail is provided with an LED illuminating lamp strip to provide road illumination;
the end part of the concrete hanging plate is provided with an end part embedded steel plate;
u-shaped embedded steel bars and main body embedded steel plates welded on the U-shaped embedded steel bars are embedded in the bridge girder body, the tops of the steel plates are exposed outside the bridge floor cast-in-place layer, the prefabricated reinforced concrete wall body is installed on the bridge floor cast-in-place layer, the concrete hanging plate is installed on the outer side of the prefabricated reinforced concrete wall body, the inner side embedded steel plates of the prefabricated reinforced concrete wall body are welded with the main body embedded steel plates, and the outer side embedded steel plates of the prefabricated reinforced concrete wall body are welded with the end part embedded steel plates of the concrete hanging plate; the prefabricated reinforced concrete wall body is provided with a plurality of steel structure stand columns, and the bolt holes of the bases of the steel structure stand columns penetrate through the thread sections of the pre-embedded U-shaped steel bars at the top of the prefabricated reinforced concrete wall body and are fixed by nuts; the steel anti-collision guardrail and the steel pipe guardrail are fixed on the support of the steel structure upright post through bolts.
Further, steel anticollision barrier adopts seamless steel pipe, plays the crashproof crossbeam effect, passes through bolted connection with the steel construction stand.
Further, the steel structure stand is equidistantly arranged on the prefabricated reinforced concrete wall body.
Further, the steel pipe guardrail adopts the design steel pipe, and the LED light in-band inlays in the steel pipe guardrail side, and the steel pipe guardrail passes through bolted connection with the steel construction stand.
The railing outside link plate adopts reinforced concrete structure form, and the mill is prefabricated, installs in the railing outside to do benefit to pleasing to the eye, play the effect that the bridge drips simultaneously.
Further, the construction method of the combined bridge prefabricated guardrail is characterized by comprising the following steps:
A. pre-burying a U-shaped pre-buried steel plate in a beam body and welding a main body pre-buried steel plate on a U-shaped pre-buried steel bar; meanwhile, an inner side embedded steel plate is embedded in the inner side of the bottom of the precast reinforced concrete wall body, an outer side embedded steel plate is embedded in the outer side, a U-shaped steel bar is embedded in the top of the concrete anti-collision wall body, and a thread section is arranged on the part, exposed out of the wall body, of the upper end of the U-shaped steel bar; end embedded steel plates are arranged at the ends of the concrete hanging plates;
B. mounting a concrete hanging plate during the construction of the bridge floor cast-in-place layer, and exposing the top surface of the main body embedded steel plate after the construction of the bridge floor cast-in-place layer is finished;
C. transporting the concrete anti-collision wall body to the site, completing installation and positioning, welding an inner side embedded steel plate of the concrete anti-collision wall body with a main body embedded steel plate exposed outside a bridge floor cast-in-place layer, welding an outer side embedded steel plate of the concrete anti-collision wall body with an end embedded steel plate of a concrete hanging plate, and trowelling a joint by using cement mortar;
D. installing a steel structure upright post, aligning a bolt hole of a base of the steel structure upright post with a thread section of a pre-embedded U-shaped steel bar at the top of the concrete anti-collision wall body, and screwing down by using a nut;
E. and installing a steel anti-collision guardrail and a steel pipe guardrail.
The anti-collision device can meet the anti-collision requirement of the bridge guardrail, adopts factory prefabrication, is convenient to construct, has a short construction period, and can save the total construction period. Adopt the prefabricated component of mill, the appearance quality is convenient for guarantee, has great promotion to the whole view of municipal bridge. The prefabricated member in factory is adopted, so that the method can be used for mass production and has higher economic benefit.
Drawings
Fig. 1 is a sectional view of the combined bridge prefabricated guard rail of the invention.
Fig. 2 is an elevational view of the guardrail.
Fig. 3 is a cross-sectional view of a steel stud.
Fig. 4 is an elevation view of a steel stud.
Detailed Description
The preferred embodiment of the present invention will be described in detail below with reference to fig. 1 to 3.
As shown in fig. 1 to 3, the present invention provides a prefabricated crash barrier for a factory-prefabricated, field-installed combined bridge, comprising:
The steel anticollision barrier 2, this steel anticollision barrier adopt seamless steel pipe, play the crashproof crossbeam effect.
Steel construction stand 3 sets up in the middle of the anticollision barrier, and twice steel pipe guardrail is fixed in the steel stand side, and the steel stand contains support and base, and the base sets up the bolt hole, and pre-buried U type embedded steel 4 earlier when concrete anticollision wall body is prefabricated uses bolted connection during the installation steel construction stand.
U type embedded steel 4, pre-buried U type reinforcing bar earlier when concrete anticollision wall body is prefabricated exposes wall body part mantle thread.
The concrete anti-collision wall body 5 has the cross section size consistent with the requirements of the combined bridge guardrail in the design rules of road traffic safety facilities. The concrete anti-collision wall body is prefabricated in a factory, so that the appearance is attractive, and the line type is attractive.
The concrete hanging plate 6 has the advantages that the longitudinal joint exists between the installation rear side face of the prefabricated guardrail and the bridge floor, so that the whole attractiveness of the bridge is affected, the concrete L-shaped hanging plate is arranged, the combined part of the guardrail and the bridge floor is blocked, and the effect of bridge water dripping is achieved.
The embedded steel bars and the steel plates 7 are composed of U-shaped embedded steel bars and steel plates welded on the steel bars, and are embedded firstly during beam construction, the embedded steel plates are exposed after the construction of a cast-in-place layer of the bridge deck is completed, and the embedded steel plates are welded with the concrete anti-collision wall body during construction.
And a steel plate 8 is embedded in the wall body when the concrete anti-collision wall body is precast.
And a steel plate 9 is embedded in the outer side of the wall body when the concrete anti-collision wall body is precast.
The steel plate 10 is embedded in advance, and is embedded in the end part when the concrete hanging plate is prefabricated.
In a specific embodiment, when the prefabricated combined type anti-collision guardrail for field installation is installed, the steel bars and the steel plates 7 are embedded firstly during beam construction, and the top surfaces of the embedded steel plates are exposed after the construction of a bridge floor cast-in-place layer is completed. Simultaneously mill's precast concrete anticollision wall body 5 and concrete link plate 6, steel structure mill processing steel construction stand 3 and steel anticollision barrier 2, the lighting unit provides LED lamp area and gives the steel structure processing factory, installs in steel pipe guardrail 1. Install concrete link plate 6 during the cast-in-place layer of bridge floor construction, the cast-in-place layer of bridge floor construction is accomplished the back, transports concrete anticollision wall body 5 to the scene, and the installation location is accomplished, makes pre-buried steel sheet 7 and pre-buried steel sheet 8 weld, and pre-buried steel sheet 9 welds with pre-buried steel sheet 10, uses cement mortar floating joint. After finishing the processing of the steel structure upright post 3, the steel structure upright post is transported to the site, bolt holes are reserved on a bottom plate of the steel structure upright post, the steel structure upright post is aligned with the U-shaped embedded steel bars 4, and nuts are used for screwing. And then installing the steel crash barrier 2 and the steel pipe barrier 1. And finishing the installation.
The invention provides a combined bridge anti-collision railing which is prefabricated in a factory and installed on site, and can be functionally divided into three parts: the first part is a precast concrete anti-collision wall body and a steel anti-collision rail, and the impact force of the automobile is borne by an anti-collision surface of the concrete wall body and a steel anti-collision cross beam; the second part is used for lighting a guardrail lamp, and an LED lamp strip is placed on a steel guardrail arranged at the top end of the guardrail to realize road lighting; the third part is concrete link plate, mainly for the side bridge is more pleasing to the eye, has the effect of dripping simultaneously.
The invention has the following advantages:
firstly, the appearance of the prefabricated part is better by adopting factory prefabrication processing and maintenance. And secondly, each part is prefabricated and processed in a factory and assembled on site, so that the construction is simple and convenient, and the construction period is saved. Thirdly, the guardrail lamp is adopted for lighting, and a bridge high-pole lamp is omitted, so that the bridge is more attractive.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (5)
1. The utility model provides a modular prefabricated bridge railing which characterized in that prefabricated guardrail contains:
the prefabricated reinforced concrete wall body is characterized in that an inner side embedded steel plate is embedded on the inner side of the bottom of the prefabricated reinforced concrete wall body, an outer side embedded steel plate is embedded on the outer side, U-shaped steel bars are embedded on the top of the concrete anti-collision wall body, and the upper ends of the U-shaped steel bars are exposed out of the wall body and are provided with thread sections;
the steel structure upright post comprises a bracket and a base, and bolt holes are reserved in the bracket and the base;
a steel crash barrier;
the steel pipe guardrail is provided with an LED illuminating lamp strip to provide road illumination;
the end part of the concrete hanging plate is provided with an end part embedded steel plate;
u-shaped embedded steel bars and main body embedded steel plates welded on the U-shaped embedded steel bars are embedded in the bridge girder body, the tops of the steel plates are exposed outside the bridge floor cast-in-place layer, the prefabricated reinforced concrete wall body is installed on the bridge floor cast-in-place layer, the concrete hanging plate is installed on the outer side of the prefabricated reinforced concrete wall body, the inner side embedded steel plates of the prefabricated reinforced concrete wall body are welded with the main body embedded steel plates, and the outer side embedded steel plates of the prefabricated reinforced concrete wall body are welded with the end part embedded steel plates of the concrete hanging plate; the prefabricated reinforced concrete wall body is provided with a plurality of steel structure stand columns, and the bolt holes of the bases of the steel structure stand columns penetrate through the thread sections of the pre-embedded U-shaped steel bars at the top of the prefabricated reinforced concrete wall body and are fixed by nuts; the steel anti-collision guardrail and the steel pipe guardrail are fixed on the support of the steel structure upright post through bolts.
2. The combined prefabricated bridge guardrail of claim 1, wherein the steel crash barrier is made of seamless steel tubes, and serves as a crash beam and is connected with the steel structure columns through bolts.
3. The modular prefabricated bridge railing of claim 1, wherein said steel structural columns are arranged on said prefabricated reinforced concrete wall body at equal intervals.
4. The combined type prefabricated bridge guardrail of claim 1, wherein the steel tube guardrail is made of a shaped steel tube, the LED illuminating lamp is embedded in the side surface of the steel tube guardrail, and the steel tube guardrail is connected with the steel structure upright post through bolts.
5. A construction method of a combined bridge prefabricated guardrail is characterized by comprising the following steps:
A. pre-burying a U-shaped pre-buried steel plate in a beam body and welding a main body pre-buried steel plate on a U-shaped pre-buried steel bar; meanwhile, an inner side embedded steel plate is embedded in the inner side of the bottom of the precast reinforced concrete wall body, an outer side embedded steel plate is embedded in the outer side, a U-shaped steel bar is embedded in the top of the concrete anti-collision wall body, and a thread section is arranged on the part, exposed out of the wall body, of the upper end of the U-shaped steel bar; end embedded steel plates are arranged at the ends of the concrete hanging plates;
B. mounting a concrete hanging plate during the construction of the bridge floor cast-in-place layer, and exposing the top surface of the main body embedded steel plate after the construction of the bridge floor cast-in-place layer is finished;
C. transporting the concrete anti-collision wall body to the site, completing installation and positioning, welding an inner side embedded steel plate of the concrete anti-collision wall body with a main body embedded steel plate exposed outside a bridge floor cast-in-place layer, welding an outer side embedded steel plate of the concrete anti-collision wall body with an end embedded steel plate of a concrete hanging plate, and trowelling a joint by using cement mortar;
D. installing a steel structure upright post, aligning a bolt hole of a base of the steel structure upright post with a thread section of a pre-embedded U-shaped steel bar at the top of the concrete anti-collision wall body, and screwing down by using a nut;
E. and installing a steel anti-collision guardrail and a steel pipe guardrail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911047814.XA CN110820553A (en) | 2019-10-30 | 2019-10-30 | Combined prefabricated bridge guardrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911047814.XA CN110820553A (en) | 2019-10-30 | 2019-10-30 | Combined prefabricated bridge guardrail |
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| Publication Number | Publication Date |
|---|---|
| CN110820553A true CN110820553A (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911047814.XA Pending CN110820553A (en) | 2019-10-30 | 2019-10-30 | Combined prefabricated bridge guardrail |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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2019
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| CN201132947Y (en) * | 2007-11-22 | 2008-10-15 | 浙江省舟山连岛工程建设指挥部 | Assembled guard railing structure |
| CN201236313Y (en) * | 2008-07-23 | 2009-05-13 | 山东大学 | Anti-collision protection fence of bridge for hazardous article vehicle traffic at water source conservation zone |
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| CN202148503U (en) * | 2011-05-05 | 2012-02-22 | 北京道从交通科技有限公司 | Saddle type combined guardrail structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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Application publication date: 20200221 |