CN106567329A - Semi-prefabricated reinforced concrete wall type guardrail - Google Patents
Semi-prefabricated reinforced concrete wall type guardrail Download PDFInfo
- Publication number
- CN106567329A CN106567329A CN201610975856.XA CN201610975856A CN106567329A CN 106567329 A CN106567329 A CN 106567329A CN 201610975856 A CN201610975856 A CN 201610975856A CN 106567329 A CN106567329 A CN 106567329A
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- CN
- China
- Prior art keywords
- guardrail
- reinforcing bar
- link plate
- prefabricated
- bar
- 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.)
- Pending
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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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a semi-prefabricated reinforced concrete wall type guardrail. The semi-prefabricated reinforced concrete wall type guardrail is characterized in that the semi-prefabricated reinforced concrete wall type guardrail comprises a guardrail prefabricated hanging plate, extended reinforcing bars are pre-embedded into the inner side of the guardrail prefabricated hanging plate, the guardrail prefabricated hanging plate is arranged on the outer side of an upper structural beam cantilever, the extended reinforcing bars on the inner side of the guardrail prefabricated hanging plate and pre-embedded reinforcing bars in the upper structural beam cantilever are partially welded or bonded, and guardrail inner side concrete is poured into the inner side of the guardrail prefabricated hanging plate in a cast-in-place manner. The whole guardrail is jointly formed by the guardrail prefabricated hanging plate and the cast-in-place guardrail inner side concrete. According to the semi-prefabricated reinforced concrete wall type guardrail, a traditional guardrail construction manner is changed, partial site cast-in-place work is converted into factory prefabrication completion, the hanging plate is used as a formwork for the outer side during guardrail construction, a great number of formworks are saved, formwork supports are omitted, only partial concrete cast-in-place is needed, and the site construction time is shortened.
Description
Technical field
The present invention relates to bridge structure field, more particularly to a kind of bridge new accessory structure construction technique, specially one
Plant half prefabricated reinforced concrete wall fence.
Background technology
Bridge reinforcement concrete wall type guard rail is generally cast-in-place using template at present, i.e., choose in superstructure beam and set on the outside of arm
Shuttering cantilever supporting frame, colligation anti-collision wall reinforcing bar after fixed form complete concrete cast and conserve.Its drawback is that high-altitude is made
Industry affects big to surrounding enviroment, and poor stability is seriously polluted, and on-site concrete casting quality is unstable, the linear quality of anti-collision wall
It is unstable.
Through improving, also there are complete prefabricated wall fence technique, i.e. guardrail whole prefabrication, in-site installation is general to adopt
Bolt connection, it is to avoid the drawbacks of complete cast-in-place method, but in, easy leak slightly worse with the durability of the coupling part of beam-ends structure.
The content of the invention
It is an object of the invention to provide a kind of half prefabricated reinforced concrete wall fence, can the scene of reducing set up reinforcing bar to mix
Solidifying soil wall fence template and falsework, can reduce impact of the anti-collision wall construction to surrounding enviroment again.
To achieve these goals, the technical scheme is that：A kind of half prefabricated reinforced concrete wall fence, which is special
Levy and be：The half prefabricated reinforced concrete wall fence includes guardrail prefabricated concrete board, the company of being provided with the inside of guardrail prefabricated concrete board
Binding structure, the guardrail prefabricated concrete board are arranged on superstructure beam and choose on the outside of arm, and by connection knot on the inside of guardrail prefabricated concrete board
Structure is chosen arm with superstructure beam and is achieved a fixed connection, concrete, the shield on the inside of cast-in-place guardrail on the inside of the guardrail prefabricated concrete board
On the inside of hurdle prefabricated concrete board and cast-in-place guardrail, concrete is collectively forming guardrail entirety.
According to a preferred embodiment of the invention, the attachment structure being arranged on the inside of guardrail prefabricated concrete board is that guardrail is prefabricated
It is pre-buried on the inside of link plate to stretch out reinforcing bar, reinforcing bar is stretched out on the inside of guardrail prefabricated concrete board the pre-buried steel muscle portion in arm is chosen with superstructure beam
Divide welding or colligation, realize that guardrail prefabricated concrete board chooses being fixedly connected for arm with superstructure beam.
According to a preferred embodiment of the invention, the guardrail prefabricated concrete board bottom arranges and drips, on the inside of guardrail prefabricated concrete board
Meet place of dripping and set link plate pedestal, link plate base bottom is chosen with superstructure beam and flush at the top of arm, the link plate base bottom passes through
Cement mortar chooses arm upper surface outboard bonds with superstructure beam.
According to a preferred embodiment of the invention, reinforcing bar is stretched out on the top of the guardrail prefabricated concrete board and superstructure beam chooses arm
Interior embedded bar welds to form interim connection, and reinforcing bar is stretched out in bottom and superstructure beam is chosen embedded bar in arm and welds to form permanent
Connection.
According to a preferred embodiment of the invention, four groups of reinforcing bars are stretched out under upper in the top of the guardrail prefabricated concrete board, and
One group of reinforcing bar includes a hollow reinforcing bar, and the hollow reinforcing bar side is provided with opening, at opening outwardly, presentation two from terms of outside
The L-shaped reinforcing bar that root is oppositely arranged, and form small gap between the two, hollow reinforcing bar opposite side are embedded in link plate in advance, and with extension
Bar connecting in plate；Second group of reinforcing bar includes an arch door shape Ω steel bar, and in arch door shape, the bipod of Ω steel bars is pre-buried in outside
In link plate, and with bar connecting in link plate；3rd group of reinforcing bar also includes a hollow reinforcing bar, and the hollow reinforcing bar side sets
Have opening, hollow reinforcing bar opposite side is embedded in link plate in advance at opening outwardly, and with bar connecting in link plate；4th group of reinforcing bar bag
Include a square frame-shaped reinforcing bar, side is embedded in link plate in advance, and with bar connecting in link plate；Second group of reinforcing bar chooses arm with superstructure beam
Interior embedded bar welds to form interim connection, and the 4th group of reinforcing bar is chosen embedded bar in arm and weld to be formed with superstructure beam and forever connect
Connect.
According to a preferred embodiment of the invention, four groups of reinforcing bars are the spiral of diameter 16mm, or its
His form, purpose is preferably to be connected with inner side cast-in-place concrete.
It is an advantage of the current invention that：
1. the present invention changes traditional guardrail form of construction work, and the cast-in-place work of part field switchs to prefabrication and completes, and guardrail is applied
By the use of link plate as template on the outside of man-hour, substantial amounts of template and falsework are eliminated, only cast-in-place part concrete, shortened existing
The field engineering time.
2. prefabricated concrete board pours into a mould, quality of finished product good easily-controllable with maintenance quality in plant produced, and batch making is convenient, component
Dimensional accuracy is high, live freely adjustable line style.
3. as member-retaining portion is cast-in-place, it is ensured that guardrail and choose being reliably connected for arm, stress performance good, good endurance, phase
Than complete prefabricated anti-collision wall, seam closure will not leak.
4. the workload that falsework is set up at workmen scene is eliminated, thus reduces workmen scene high-altitude
The risk of operation, reduces the impact to periphery such as risk and on-site noise, dust of falling object from high altitude.
Description of the drawings：
Fig. 1 completes figure for half prefabricated wall fence.
Fig. 2 is prefabricated concrete board structural map.
Inner side views of the Fig. 3 for Fig. 2.
Fig. 4 is prefabricated concrete board reinforcement drawing.
Lateral plans of the Fig. 5 for Fig. 4.
Fig. 6 is one of guardrail construction process figure.
Fig. 7 for guardrail construction process figure two.
Fig. 8 for guardrail construction process figure three.
Specific embodiment：
Accompanying drawing is schematic diagram of the present invention, by taking certain engineering SS level guardrail as an example.
It is illustrated in figure 1 a kind of half prefabricated reinforced concrete wall fence, it is characterised in that a part is protecting on the outside of guardrail
The form of hurdle prefabricated concrete board 1 is prefabricated, pre-buried on the inside of guardrail prefabricated concrete board 1 to stretch out reinforcing bar, chooses pre-buried in arm 2 with superstructure beam
Reinforcing bar part is welded or colligation, requires link plate in place according to anti-collision wall line style, and link position is smeared slurry, internal model is set up on the inside of guardrail
Plate, carries out the cast of inner side concrete, and on the inside of prefabricated concrete board and cast-in-place guardrail, concrete 3 is collectively forming entirety.
Other steel fasteners such as can certainly be set on the inside of link plate or using in link plate using other modes
Reserve connecting hole in side so that reinforcing bar is exposed at outside hole in link plate, then superstructure beam is chosen embedded bar part and extension in arm
In plate, reinforcement welding mode together realizes that guardrail prefabricated concrete board chooses being fixedly connected for arm with superstructure beam.
Schematic diagram is by taking the reinforced guardrail of SS levels as an example.
Installation site chooses arm sideline to inner side 350mm, alternatively outside 150mm, other sizes.
As Fig. 2 ~ 5 show steel bar arrangement figure in prefabricated concrete board structural map and link plate, SS level guardrail link plates in figure, are illustrated
Structure principle.
1 outside profile of guardrail prefabricated concrete board is consistent with guardrail profile, and thickness can be 65mm, alternatively other sizes, be located at
On the outside of guardrail, can be used as the outboard template of cast-in-place part；In guardrail prefabricated concrete board, side joint to drip and set link plate pedestal 4, pedestal chi at 5
It is very little for 150mmx173mm（High x width）, alternatively other sizes, 4 bottom of link plate pedestal choose arm top with beam and flush, link plate pedestal 4
It act as making link plate be fixed on beam choosing on arm；To drip 5, dripping 5 height and choosing arm for outside highly adds 50mm, also may be used for link plate bottom
For other sizes, the 5 width lower edges that drip are 100, and upper limb is 150mm, alternatively other sizes, the lateral surface for dripping be bottom to
The inclined inclined-plane in inner side, act as making rainwater flow out along lower end herein, and does not flow beam body.
Guardrail height is pave-load layer top surface level above, can be the armored concrete wall guardrail and group of specification defined
Any height of box-like guardrail concrete parts.
Link plate is highly：Guardrail height+pave-load layer thickness+drip height
Link plate width is 1495mm, and plate stitch 5mm, alternatively other sizes are defined by easy construction.
Prefabricated concrete board reinforcement drawing is illustrated in figure 3, the reinforcement drawing of SS level prefabricated concrete boards in figure, is illustrated.11,12,14 in figure
Reinforcing bar is reinforcing bar in link plate, and four groups of reinforcing bars are stretched out under upper in the top of the guardrail prefabricated concrete board, wherein first group of reinforcing bar 13a
Including a less hollow reinforcing bar, hollow reinforcing bar side is provided with opening, two phases is presented from terms of outside at opening outwardly
To the L-shaped reinforcing bar for arranging, and form small gap between the two, hollow reinforcing bar opposite side is embedded in link plate in advance, and with link plate in
Bar connecting；Second group of reinforcing bar 13b includes an arched door shape Ω steel bar, and outside is in arch door shape（Or referred to as circular arc）, Ω
The bipod of steel bar is embedded in link plate in advance, and with bar connecting in link plate, it is ensured that the anchorage length of reinforcing bar；3rd group of reinforcing bar
13c also includes a large mouth font reinforcing bar, and hollow reinforcing bar side is provided with opening, at opening outwardly, presentation two from terms of outside
The L-shaped reinforcing bar that root is oppositely arranged, and form small gap between the two, hollow reinforcing bar opposite side are embedded in link plate in advance, and with extension
Bar connecting in plate；4th group of reinforcing bar 15 then includes a square frame-shaped reinforcing bar, and side is embedded in link plate in advance, and connects with reinforcing bar in link plate
Connect, second group of reinforcing bar 13b can be used as suspension ring reinforcing bar, embedded bar weldering in arm is chosen by interim reinforcing bar 16 and superstructure beam
Connect to form interim connection, 16 one end of interim reinforcing bar is welded with embedded bar in mat formation reinforcing bar or beam, the other end and second group of reinforcing bar
13b or other reinforcement weldings, composition is interim to be connected, and plays a part of fixed link plate, and the 4th group of reinforcing bar 15 is arranged at link plate pedestal
Top, and arrange near link plate pedestal, the 4th group of reinforcing bar 15 is chosen the welding of embedded bar 17 in arm with superstructure beam and forms permanent
Connection.
As Fig. 6 ~ 8 show guardrail construction process figure,
Step one：The construction of prefabricated concrete board is first completed, link plate is placed on into superstructure beam and is chosen on arm, by the 4th group of reinforcing bar of link plate
15 choose arm embedded bar with superstructure beam welds to form permanently connected, separately by 16 one end of interim reinforcing bar with mat formation in reinforcing bar or beam
Embedded bar welding, the other end and second group of reinforcing bar 13b or other reinforcement weldings, composition is interim to be connected, and at link plate pedestal bottom
It is levelling that cement mortar 6 is smeared in portion, while play and choose arm cementation, link plate is reliably connected by a few road measures with choosing arm and being formed, Gu
Determine link plate.
Step 2：Side rail reinforcing bar in colligation, sets up inner side template 7, concrete on the inside of cast guardrail.
Step 3：After the concrete curing phase terminates, inner side template is removed, remove interim reinforcing bar 16, complete guardrail construction.
The advantage of half prefabricated reinforced concrete wall fence construction technology of the invention is to change traditional guardrail construction
Mode, the cast-in-place work of part field switch to prefabrication and complete, when guardrail is constructed on the outside of by the use of link plate as template, eliminate greatly
The template of amount, only cast-in-place part concrete, shortens on-site construction time.Prefabricated concrete board plant produced, presentation quality are good, batch
Easy to make, scantling precision is guaranteed.Due to member-retaining portion it is cast-in-place, it is ensured that guardrail with choose being reliably connected for arm, stress
Performance is good, good endurance.The risk of workmen's scene work high above the ground is reduced, and on-site noise and dust is reduced to periphery
Impact.
Claims (5)
1. a kind of half prefabricated reinforced concrete wall fence, it is characterised in that：The half prefabricated reinforced concrete wall fence bag
Guardrail prefabricated concrete board is included, attachment structure on the inside of guardrail prefabricated concrete board, is provided with, the guardrail prefabricated concrete board is arranged on superstructure
Beam is chosen on the outside of arm, and chooses arm with superstructure beam by attachment structure on the inside of guardrail prefabricated concrete board and achieve a fixed connection, the shield
Concrete on the inside of cast-in-place guardrail on the inside of hurdle prefabricated concrete board, on the inside of the guardrail prefabricated concrete board and cast-in-place guardrail, concrete is collectively forming
Guardrail entirety.
2. half prefabricated reinforced concrete wall fence as claimed in claim 1, it is characterised in that：It is described that to be arranged on guardrail prefabricated
Attachment structure on the inside of link plate be it is pre-buried on the inside of guardrail prefabricated concrete board stretch out reinforcing bar, stretch out on the inside of guardrail prefabricated concrete board reinforcing bar with
Superstructure beam chooses the welding of embedded bar part or colligation in arm, realizes that guardrail prefabricated concrete board chooses consolidating for arm with superstructure beam
It is fixed to connect.
3. half prefabricated reinforced concrete wall fence as claimed in claim 2, it is characterised in that：The guardrail prefabricated concrete board bottom
Portion is arranged drips, and in guardrail prefabricated concrete board, side joint place of dripping sets link plate pedestal, and link plate base bottom chooses arm top with superstructure beam
Portion flushes, and the link plate base bottom chooses arm upper surface outboard bonds by cement mortar and superstructure beam.
4. half prefabricated reinforced concrete wall fence as claimed in claim 2, it is characterised in that：The guardrail prefabricated concrete board
Top is stretched out reinforcing bar and chooses embedded bar in arm and weld to be formed with superstructure beam and is connected temporarily, and reinforcing bar and superstructure are stretched out in bottom
Beam is chosen embedded bar in arm and welds to form permanently connected.
5. half prefabricated reinforced concrete wall fence as claimed in claim 4, it is characterised in that：The guardrail prefabricated concrete board
Four groups of reinforcing bars are stretched out under upper in top, and first group of reinforcing bar includes a hollow reinforcing bar, and the hollow reinforcing bar side is provided with out
Mouthful, two L-shaped reinforcing bars being oppositely arranged are presented from terms of outside, and form small gap, hollow between the two at opening outwardly
Reinforcing bar opposite side is embedded in link plate in advance, and with bar connecting in link plate；Second group of reinforcing bar includes an arch door shape Ω steel bar, outside
In arch door shape, the bipod of Ω steel bars is embedded in link plate in advance, and with bar connecting in link plate；3rd group of reinforcing bar also includes a mouth
Font reinforcing bar, the hollow reinforcing bar side are provided with opening, and, hollow reinforcing bar opposite side is embedded in link plate in advance at opening outwardly, and with
Bar connecting in link plate；4th group of reinforcing bar includes a square frame-shaped reinforcing bar, and side is embedded in link plate in advance, and connects with reinforcing bar in link plate
Connect；Second group of reinforcing bar is chosen embedded bar in arm and welds to be formed with superstructure beam and be connected temporarily, the 4th group of reinforcing bar and superstructure
Beam is chosen embedded bar in arm and welds to form permanently connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975856.XA CN106567329A (en) | 2016-11-07 | 2016-11-07 | Semi-prefabricated reinforced concrete wall type guardrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975856.XA CN106567329A (en) | 2016-11-07 | 2016-11-07 | Semi-prefabricated reinforced concrete wall type guardrail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106567329A true CN106567329A (en) | 2017-04-19 |
Family
ID=58540098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610975856.XA Pending CN106567329A (en) | 2016-11-07 | 2016-11-07 | Semi-prefabricated reinforced concrete wall type guardrail |
Country Status (1)
| Country | Link |
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| CN (1) | CN106567329A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265623A (en) * | 2018-02-13 | 2018-07-10 | 高强 | A kind of prefabricated superposed type anti-collision wall and its construction method for urban viaduct |
| CN110700094A (en) * | 2019-11-12 | 2020-01-17 | 中国建筑土木建设有限公司 | Viaduct wall-mounted guardrail structure and construction method thereof |
| CN116084274A (en) * | 2023-01-05 | 2023-05-09 | 湖南省高速公路集团有限公司 | Bridge guardrail heightening structure and construction transformation method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265623A (en) * | 2018-02-13 | 2018-07-10 | 高强 | A kind of prefabricated superposed type anti-collision wall and its construction method for urban viaduct |
| CN110700094A (en) * | 2019-11-12 | 2020-01-17 | 中国建筑土木建设有限公司 | Viaduct wall-mounted guardrail structure and construction method thereof |
| CN116084274A (en) * | 2023-01-05 | 2023-05-09 | 湖南省高速公路集团有限公司 | Bridge guardrail heightening structure and construction transformation method |
| CN116084274B (en) * | 2023-01-05 | 2023-12-05 | 湖南省高速公路集团有限公司 | Bridge guardrail heightening structure and construction transformation method |
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