CN110205929A - A kind of precast concrete assembly guardrail and installation method - Google Patents
A kind of precast concrete assembly guardrail and installation method Download PDFInfo
- Publication number
- CN110205929A CN110205929A CN201910419190.3A CN201910419190A CN110205929A CN 110205929 A CN110205929 A CN 110205929A CN 201910419190 A CN201910419190 A CN 201910419190A CN 110205929 A CN110205929 A CN 110205929A
- Authority
- CN
- China
- Prior art keywords
- guardrail
- steel ring
- concrete
- precast concrete
- beam slab
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
Abstract
The present invention provides a kind of precast concrete assembly guardrail and installation methods, are related to a kind of highway bridge guardrail safety devices.It solves the problems, such as that precast concrete guardrail mounting process is complicated, second-rate in the prior art.This precast concrete assembly guardrail, including precast concrete guardrail, beam slab, the preformed groove formed at the precast concrete guardrail bottom and beam slab flange plate, pre-buried first steel ring in the precast concrete guardrail, the part circle body of first steel ring exposes at preformed groove downward, pre-buried second steel ring in the beam slab, the part circle body of second steel ring expose outside beam slab upward.The configuration of the present invention is simple, low manufacture cost, installation convenience, speed of application is fast, and reinforcing bar can be no-welding, can be fixed temporarily under normal circumstances by reinforcing bar on the outside of spot welding or binding internally.The construction Difficulties such as site operation is long in time limit, difficulty of construction is big, quality is difficult to manage are solved, realize the transformation of site operation to the intensive construction of factory.
Description
Technical field
The invention belongs to bridge technical field of construction, are related to a kind of road bridge guardrail equipment, especially a kind of concrete shield
Column structure and installation method.
Background technique
With the rapid growth of China's economy and flourishing for highway transportation cause, the volume of traffic is increased rapidly, to highway
More stringent requirements are proposed for the construction speed of means of transportation.Especially viaduct or bridge, are generally provided with concrete guardrail,
In order to improve construction efficiency, building site is generally transported to using prefabricated concrete guardrail, then by guardrail and road or bridge
Beam slab is welded or is bolted.This connection mounting means not only concentrate by stress, and welding difficulty is easy to damage, but also makes
Long construction period is obtained, difficulty of construction is big.
Summary of the invention
The purpose of the present invention is in view of the above-mentioned problems existing in the prior art, propose a kind of precast concrete assembly guardrail
And installation method, this precast concrete assembly guardrail make guardrail and beam slab carry out assembled connection, then casting concrete is consolidated
Fixed, speed of application is fast, sound construction, and equipment mechanics and appearance homogeneity are good.
Object of the invention can be realized by the following technical scheme: a kind of precast concrete assembly guardrail, including prefabricated
Concrete guardrail, beam slab, the precast concrete guardrail bottom and beam slab flange plate pour slot after reserving concrete, described prefabricated mixed
Pre-buried first steel ring in solidifying soil guardrail, the part circle body of first steel ring exposes downward to be poured at slot after concrete, institute
Pre-buried second steel ring in beam slab is stated, the part circle body of second steel ring exposes outside beam slab upward, the concrete
Native guardrail is placed in beam slab flange plate, when pouring slot after bottom formation concrete, the part circle body and second of the first steel ring exposing
The part circle body cross-lapping that steel ring exposes, the part circle body and the second steel that longitudinal reinforcement exposes also cross the first steel ring
The part circle body that rib ring is exposed, the part circle body that the first steel ring exposes interlock corresponding with the part circle body that the second steel ring exposes
The connection of slot concrete perfusion is poured after the concrete at place.
In above-mentioned precast concrete assembly guardrail, the longitudinal reinforcement includes two rows, upper row's longitudinal reinforcement with
Second steel ring is fixedly connected, and lower row's longitudinal reinforcement is fixedly connected with the first steel ring.It can be by being simply welded or binding
Carry out interim be fixedly connected.
In above-mentioned precast concrete assembly guardrail, the part circle body and the second steel ring that the first steel ring exposes expose
Part circle body interlock corresponding position concrete after pour slot perfusion concrete be UHPC ultra-high performance concrete.Very-high performance is mixed
Solidifying soil, abbreviation UHPC (Ultra-High Performance Concrete), also referred to as Reactive Powder Concrete (RPC,
Reactive Powder Concrete)。
In above-mentioned precast concrete assembly guardrail, the precast concrete guardrail has and the beam in length direction
The radian of plate flange plate outline.In order to the bending of guardrail route and the matching of beam slab flange plate.
In above-mentioned precast concrete assembly guardrail, the card of steady brace is provided on the precast concrete guardrail
Tool.In order to which guardrail connects positioning tie bar, temporary position is carried out to guardrail by pull rod and is fixed.
A kind of installation method of precast concrete assembly guardrail: firstly, according to coordinate and absolute altitude, mortar is set on beam slab
Band, is then placed in beam slab flange plate for precast concrete guardrail, and bottom is poured slot after forming concrete, adjusted to guarantee the first steel
The part circle body cross-lapping that the part circle body and the second steel ring that rib ring is exposed expose, is then inserted into longitudinal reinforcement, in guardrail
Slot setting slip casting baffle and Grouting Pipe is poured after the concrete formed between beam slab, then by Grouting Pipe to pouring slot after concrete
Concrete perfusion.
Compared with prior art, this precast concrete assembly guardrail and installation method have the advantage that
Cross one another steel ring is set on guardrail and beam slab of the invention, genesis analysis reinforcing bar is passed through among them, thus
Steel structure framework is quickly formd in junction, execute-in-place is convenient, and then concrete perfusion forms reinforced concrete structure,
It is integrated with the mechanics of bridge monolithic concrete structure and surface structure to ensure that, only need it is assembled, installation reinforcing bar, pour
Simple operations achieve that the installation of guardrail, greatly improve construction efficiency.
Guardrail component is pre-formed in advance, transports to scene and is mounted directly, and due to parallel prefabricated construction, can save
Time and labour cost.To the adaptable of highway bridge, it is suitable for various standard highways.Structure is simple, low manufacture cost,
Installation convenience, speed of application is fast, and reinforcing bar can be no-welding, can be faced under normal circumstances by reinforcing bar on the outside of spot welding or binding internally
When fix.Solve the construction Difficulties such as the site operation period is long, difficulty of construction is big, construction condition is poor, quality is difficult to manage, reality
Transformation of the existing site operation to the intensive construction of factory.
Detailed description of the invention
Fig. 1 is the schematic diagram of guardrail；
Fig. 2 is the schematic diagram of beam slab；
Fig. 3 is the guardrail of embodiment one and the schematic diagram of beam slab assembly；
Fig. 4 is the guardrail of embodiment two and the schematic diagram of beam slab assembly.
In figure, guardrail 1, beam slab 2 pours slot 101 after concrete, the first steel ring 3, the second steel ring 4, longitudinal reinforcement 5, on
Arrange longitudinal reinforcement 501, lower row's longitudinal reinforcement 502, slip casting baffle 6, positioning tie bar 7, Grouting Pipe 8, fixture 9.
Specific embodiment
The following is specific embodiments of the present invention, and technical scheme of the present invention will be further described in conjunction with attached drawing,
However, the present invention is not limited to these examples.
Embodiment one
As shown in Figure 1, 2, 3, a kind of precast concrete assembly guardrail, the beam slab 2 including precast concrete guardrail 1, connection guardrail,
Slot 101, the precast concrete shield are poured after the concrete that the precast concrete guardrail bottom and beam slab flange plate bottom are formed
Pre-buried first steel ring 3 in column, the part circle body of first steel ring exposes downward to be poured at slot after concrete, the beam slab
Interior pre-buried second steel ring 4, the part circle body of second steel ring expose outside beam slab upward, the beam slab flange plate insertion
When pouring slot after the concrete of the precast concrete guardrail bottom, the part circle body and the second steel ring that the first steel ring exposes reveal
Part circle body cross-lapping out, longitudinal reinforcement 5 are inserted through the part circle body and the second steel ring of the first steel ring exposing simultaneously
The part circle body of exposing, so that the first steel ring is linked together with the second steel ring by longitudinal reinforcement.
When construction, prefabricated reinforced concrete guardrail is transported to erecting bed, the assembly since the first segment of end, according to bridge
Guardrail design inner edge well in advance mortar band, and face the linear guardrail that side has been installed, absolute altitude, verticality for according into
The assembled adjustment of row, so that precast concrete guardrail exact placement, at bridge beam slab flange plate, slot is poured after forming concrete in bottom,
Adjustment guarantees the part circle body cross-lapping that the part circle body that the first steel ring exposes and the second steel ring expose, and is inserted into vertical
To reinforcing bar, then, slot will be poured after concrete between the first steel ring and the guardrail and beam slab of the second steel ring staggered place with baffle
It is blocked with slip casting baffle 6, but to reserve injected hole, UHPC ultra-high performance concrete is internally then injected by Grouting Pipe 8.It is super
High performance concrete, abbreviation UHPC (Ultra-High Performance Concrete), also referred to as Reactive Powder Concrete
(RPC, Reactive Powder Concrete).
If road has bending, i.e., when beam slab flange plate is bending, the precast concrete guardrail is in length direction
There can be the radian with the beam slab flange plate outline.In order to the bending of guardrail route and the matching of beam slab flange plate.
Embodiment two
As shown in figure 4, the longitudinal reinforcement includes two rows, upper row's longitudinal reinforcement 501 is fixedly connected with the second steel ring, under
Row's longitudinal reinforcement 502 is fixedly connected with the first steel ring.Interim be fixedly connected can be carried out by being simply welded or binding.
The fixture 9 of steady brace is provided on the precast concrete guardrail.In order to which guardrail connects positioning tie bar 7, lead to
Pull rod is crossed to fix guardrail progress temporary position.Such as pull rod is adjustable-length pull rod, pull rod one end connects the connection of guardrail one end
Beam slab, pull rod passes through angle of the length adjustment guardrail with respect to beam slab of adjusting yoke, to guarantee verticality.If guardrail verticality
There are slight variations with linear, carries out turning adjusting using pull rod.
Although some terms are used more herein, it does not exclude the possibility of using other terms.Use these
Term is only for the convenience of describing and explaining the nature of the invention；It is construed as any additional limitation all
It is to be disagreed with spirit of that invention.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (6)
1. a kind of precast concrete assembly guardrail, including precast concrete guardrail, beam slab, the precast concrete guardrail bottom with
The flange plate of beam slab pours slot after reserving concrete, which is characterized in that pre-buried first reinforcing bar in the precast concrete assembly guardrail
Circle, the part circle body of first steel ring exposes downward to be poured at slot after concrete, pre-buried second steel ring in the beam slab,
The part circle body of second steel ring exposes outside beam slab upward, the concrete of the precast concrete guardrail bottom and beam slab
After when pouring slot, the part circle body that the part circle body and the second steel ring that the first steel ring exposes expose interlocks overlap joint, longitudinal reinforcement
The part circle body that the part circle body and the second steel ring exposed also cross the first steel ring exposes, the portion that the first steel ring exposes
The part circle body that point circle body and the second steel ring expose interlock corresponding position concrete after pour slot perfusion high performance concrete and wrap up
Closing.
2. precast concrete assembly guardrail according to claim 1, which is characterized in that the longitudinal reinforcement includes upper and lower two
Row, upper row's longitudinal reinforcement are fixedly connected with the second steel ring, and lower row's longitudinal reinforcement is fixedly connected with the first steel ring.
3. precast concrete assembly guardrail according to claim 1, which is characterized in that the circle segment that the first steel ring exposes
The part circle body that body and the second steel ring expose interlock corresponding position concrete after to pour the concrete of slot perfusion be UHPC superelevation
It can concrete.
4. precast concrete assembly guardrail according to claim 1, which is characterized in that the precast concrete guardrail is in length
Direction is spent with the radian with the beam slab flange plate outline.
5. precast concrete assembly guardrail according to claim 1, which is characterized in that set on the precast concrete guardrail
It is equipped with the fixture of steady brace.
6. a kind of installation method of precast concrete assembly guardrail, which is characterized in that firstly, according to coordinate and absolute altitude, it will be prefabricated
For the basis rest of concrete guardrail on beam slab flange plate, slot is poured after having concrete in bottom, guarantees the portion that the first steel ring exposes
The part circle body cross-lapping for dividing circle body and the second steel ring to expose, is inserted into longitudinal reinforcement, the shape between guardrail and beam slab
At concrete after pour slot setting slip casting baffle and Grouting Pipe, then pass through Grouting Pipe concrete perfusion into gap.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419190.3A CN110205929A (en) | 2019-05-20 | 2019-05-20 | A kind of precast concrete assembly guardrail and installation method |
| CN202010429129.XA CN111962390A (en) | 2019-05-20 | 2020-05-20 | Precast concrete assembled guardrail and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419190.3A CN110205929A (en) | 2019-05-20 | 2019-05-20 | A kind of precast concrete assembly guardrail and installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110205929A true CN110205929A (en) | 2019-09-06 |
Family
ID=67787838
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910419190.3A Pending CN110205929A (en) | 2019-05-20 | 2019-05-20 | A kind of precast concrete assembly guardrail and installation method |
| CN202010429129.XA Pending CN111962390A (en) | 2019-05-20 | 2020-05-20 | Precast concrete assembled guardrail and mounting method |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010429129.XA Pending CN111962390A (en) | 2019-05-20 | 2020-05-20 | Precast concrete assembled guardrail and mounting method |
Country Status (1)
| Country | Link |
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| CN (2) | CN110205929A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111438816A (en) * | 2020-03-27 | 2020-07-24 | 苏交科集团股份有限公司 | Construction method of concrete combined box girder integral prefabricated wall type guardrail |
| CN113502753A (en) * | 2021-08-13 | 2021-10-15 | 成都建工路桥建设有限公司 | Bridge assembly type prefabricated guardrail installation construction method |
| CN113737651A (en) * | 2021-07-30 | 2021-12-03 | 中铁十九局集团第五工程有限公司 | Assembled anti-collision guardrail and mounting method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3197235B2 (en) * | 1997-07-22 | 2001-08-13 | 川田建設株式会社 | Construction method of concrete structure using precast embedded formwork |
| CN205688344U (en) * | 2016-06-02 | 2016-11-16 | 上海华城工程建设管理有限公司 | Prefabricated inlay card anticollision barrier |
| CN107489098B (en) * | 2017-07-06 | 2020-04-24 | 浙江交工宏途交通建设有限公司 | Concrete prefabricated welding type guardrail and installation construction method |
| CN107237257B (en) * | 2017-08-08 | 2019-04-09 | 上海应用技术大学 | A kind of precast assembly guardrail construction connection method |
| CN208830156U (en) * | 2018-07-16 | 2019-05-07 | 广州市市政工程设计研究总院有限公司 | A kind of guardrail grouting connection prefabricated assembling type reinforced concrete side crashproof guardrail |
| CN109162202A (en) * | 2018-10-30 | 2019-01-08 | 湖南大学 | A kind of light-duty assembled anticollision barrier component and installation method |
-
2019
- 2019-05-20 CN CN201910419190.3A patent/CN110205929A/en active Pending
-
2020
- 2020-05-20 CN CN202010429129.XA patent/CN111962390A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111438816A (en) * | 2020-03-27 | 2020-07-24 | 苏交科集团股份有限公司 | Construction method of concrete combined box girder integral prefabricated wall type guardrail |
| CN113737651A (en) * | 2021-07-30 | 2021-12-03 | 中铁十九局集团第五工程有限公司 | Assembled anti-collision guardrail and mounting method thereof |
| CN113502753A (en) * | 2021-08-13 | 2021-10-15 | 成都建工路桥建设有限公司 | Bridge assembly type prefabricated guardrail installation construction method |
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| Publication number | Publication date |
|---|---|
| CN111962390A (en) | 2020-11-20 |
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Application publication date: 20190906 |
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