CN106567328A - Half-prefabricated reinforced concrete wall-type guardrail construction process - Google Patents
Half-prefabricated reinforced concrete wall-type guardrail construction process Download PDFInfo
- Publication number
- CN106567328A CN106567328A CN201610975834.3A CN201610975834A CN106567328A CN 106567328 A CN106567328 A CN 106567328A CN 201610975834 A CN201610975834 A CN 201610975834A CN 106567328 A CN106567328 A CN 106567328A
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- CN
- China
- Prior art keywords
- guardrail
- reinforcing bar
- link plate
- prefabricated
- embedded
- 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
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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 invention discloses a half-prefabricated reinforced concrete wall-type guardrail construction process. The construction process comprises following steps of A, prefabricating the outer side part of a guardrail in a manner of a guardrail prefabricated hanging plate, and stretching-out reinforcing steel bars are pre-embedded in the inner side of the guardrail prefabricated hanging plate; B, arranging the guardrail prefabricated hanging plate on an upper part structure beam cantilever arm, and connecting the pre-embedded stretching-out reinforcing steel bars in the inner side of the guardrail prefabricated hanging plate and the pre-embedded reinforcing steel bars of the upper part structure beam cantilever arm so as to form temporary connection and permanent connection, and smearing slurry in connection positions of the guardrail prefabricated hanging plate and the upper part structure beam cantilever arm; C, binding inner side guardrail reinforced steel bars, setting an inner side template and pouring guardrail inner side concrete; and D, after the concrete curing period, dismantling the inner side template and the temporary reinforced steel bars, thereby finishing guardrail construction. According to the invention, the traditional guardrail construction mode is changed; parts of cast-in-situ work are changed into prefabrication; the hanging plate is used as the template on the outer side during the guardrail construction, so large quantity of templates are saved; and template supports are cancelled, and only parts of concrete are cast in situ, so site construction time is reduced.
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 construction technology.
Background technology
At present bridge reinforcement concrete wall type guard rail is generally cast-in-place using template, 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 completes concrete cast and conserves.Its drawback is that high-altitude is made
Industry affects big to surrounding enviroment, and security is poor, 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 construction technology, can the scene of reducing set
Vertical armored concrete wall guardrail 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 construction
Technique, it is characterised in that the construction technology is comprised the following steps：
A, guardrail Outboard Sections are prefabricated in the form of guardrail prefabricated concrete board, and guardrail prefabricated concrete board inner side is pre-buried to stretch out reinforcing bar；
B, required guardrail prefabricated concrete board is placed on into superstructure beam to choose on arm according to anti-collision wall line style, connect guardrail prefabricated concrete board
Inner side is pre-buried to stretch out reinforcing bar and superstructure beam chooses arm embedded bar, forms interim connection and permanently connected and prefabricated in guardrail
Link plate and superstructure beam choose the link position of arm and smear slurry；
Side rail reinforcing bar in C, colligation, sets up inner side template, cast guardrail inner side concrete；
After D, concrete curing phase terminate, inner side template is removed, remove interim reinforcing bar, complete guardrail construction.
According to a preferred embodiment of the invention, the guardrail prefabricated concrete board bottom arranges and drips, guardrail prefabricated concrete board inner side
Meet place of dripping and set link plate pedestal, link plate base bottom is chosen arm top and flushed with superstructure beam, and the link plate base bottom smears slurry
It is levelling, arm upper surface outboard bonds are chosen by cement mortar and 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 chooses 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 is embedded in advance link plate, and with extension
Bar connecting in plate；Second group of reinforcing bar includes an arch door shape Ω steel bar, and outside is in arch door shape, and the bipod of Ω steel bars is pre-buried
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 advance link plate 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 advance link plate, 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 chooses embedded bar in arm and weld to be formed and forever connect with superstructure beam
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.
The present invention proposes a kind of modified construction method, has in all many-sides such as applicability, crudy, construction period
Higher promotional value can improve coupling part durability, better control over the construction technology of concrete casting quality.The present invention's
Advantage is：
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. because 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. eliminate workmen scene and set up the workload of falsework, thus reduce 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.
Fig. 3 is the inner side view of Fig. 2.
Fig. 4 is prefabricated concrete board reinforcement drawing.
Fig. 5 is the lateral plan of Fig. 4.
Fig. 6 is one of guardrail construction process figure.
Fig. 7 is the two of guardrail construction process figure.
Fig. 8 is the three of guardrail construction process figure.
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 guardrail outside part is protecting
The form of hurdle prefabricated concrete board 1 is prefabricated, and the inner side of guardrail prefabricated concrete board 1 is pre-buried to stretch out reinforcing bar, chooses pre-buried in arm 2 with superstructure beam
Reinforcing bar part is welded or colligation, and according to anti-collision wall line style link plate in place is required, link position smears slurry, and internal model is set up in guardrail inner side
Plate, carries out the cast of inner side concrete, and prefabricated concrete board and cast-in-place guardrail inner side concrete 3 are 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
Reinforcement welding mode together realizes that guardrail prefabricated concrete board chooses being fixedly connected for arm with superstructure beam in plate.
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 are illustrated in figure
Structure principle.
The outside profile of guardrail prefabricated concrete board 1 is consistent with guardrail profile, and thickness can be 65mm, alternatively other sizes, be located at
Guardrail outside, can be used as the outboard template of cast-in-place part；Side joint to drip and set link plate pedestal 4, pedestal chi at 5 in guardrail prefabricated concrete board
It is very little for 150mmx173mm（High x width）, alternatively other sizes, the bottom of link plate pedestal 4 chooses arm top and flushes with beam, 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 is illustrated in figure.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 advance link plate, 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 advance in link plate, 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 is embedded in advance link plate, 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 advance link plate, 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, the one end of interim reinforcing bar 16 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, the interim connection of composition, play 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 chooses the welding of embedded bar 17 in arm and forms permanent with superstructure beam
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 the one end of interim reinforcing bar 16 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, the interim connection of composition, and at link plate pedestal bottom
It is levelling that cement mortar 6 is smeared in portion, while play and choose arm cementation, a few road measures are reliably connected link plate with choosing arm and being formed, Gu
Determine link plate.
Step 2：Side rail reinforcing bar in colligation, sets up inner side template 7, cast guardrail inner side concrete.
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 switchs to prefabrication and completes, and outside is eliminated big by the use of link plate as template when guardrail is constructed
The template of amount, only cast-in-place part concrete, shortens on-site construction time.Prefabricated concrete board plant produced, presentation quality is 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, on-site noise and dust is reduced to periphery
Impact.
Claims (4)
1. a kind of half prefabricated reinforced concrete wall fence construction technology, it is characterised in that the construction technology includes following step
Suddenly：
A, guardrail Outboard Sections are prefabricated in the form of guardrail prefabricated concrete board, and guardrail prefabricated concrete board inner side is pre-buried to stretch out reinforcing bar；
B, required guardrail prefabricated concrete board is placed on into superstructure beam to choose on arm according to anti-collision wall line style, connect guardrail prefabricated concrete board
Inner side is pre-buried to stretch out reinforcing bar and superstructure beam chooses arm embedded bar, forms interim connection and permanently connected and prefabricated in guardrail
Link plate and superstructure beam choose the link position of arm and smear slurry；
Side rail reinforcing bar in C, colligation, sets up inner side template, cast guardrail inner side concrete；
After D, concrete curing phase terminate, inner side template is removed, remove interim reinforcing bar, complete guardrail construction.
2. a kind of half prefabricated reinforced concrete wall fence construction technology as claimed in claim 1, it is characterised in that：The shield
Hurdle prefabricated concrete board bottom is arranged drips, and side joint place of dripping sets link plate pedestal, link plate base bottom and top in guardrail prefabricated concrete board
Structural beams are chosen arm top and are flushed, and it is viscous that the link plate base bottom chooses arm upper surface outside by cement mortar and superstructure beam
Knot.
3. a kind of half prefabricated reinforced concrete wall fence construction technology as claimed in claim 1, it is characterised in that：The shield
The top of hurdle prefabricated concrete board is stretched out reinforcing bar and chooses embedded bar in arm and weld to be formed with superstructure beam and is connected temporarily, and steel is stretched out in bottom
Muscle chooses embedded bar in arm and welds to form permanently connected with superstructure beam.
4. a kind of half prefabricated reinforced concrete wall fence construction technology as claimed in claim 3, it is characterised in that：The shield
Four groups of reinforcing bars are stretched out on the top of hurdle prefabricated concrete board under upper, and first group of reinforcing bar includes a hollow reinforcing bar, the hollow steel
Muscle side is provided with opening, at opening outwardly, from terms of outside present two L-shaped reinforcing bars being oppositely arranged, and formed between the two compared with
Small―gap suture, hollow reinforcing bar opposite side is embedded in advance link plate, and with bar connecting in link plate；Second group of reinforcing bar includes an arch door shape
Ω steel bars, outside is in arch door shape, and the bipod of Ω steel bars is embedded in advance in link plate, and with bar connecting in link plate；3rd group of steel
Muscle also includes a hollow reinforcing bar, and the hollow reinforcing bar side is provided with opening, and, hollow reinforcing bar opposite side is pre- at opening outwardly
Be embedded in link plate, and with bar connecting in link plate；4th group of reinforcing bar includes a square frame-shaped reinforcing bar, and side is embedded in advance link plate, and with
Bar connecting in link plate；Second group of reinforcing bar chooses embedded bar in arm and welds to be formed and be connected temporarily with superstructure beam, the 4th group of steel
Muscle chooses embedded bar in arm and welds to form permanently connected with superstructure beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975834.3A CN106567328A (en) | 2016-11-07 | 2016-11-07 | Half-prefabricated reinforced concrete wall-type guardrail construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975834.3A CN106567328A (en) | 2016-11-07 | 2016-11-07 | Half-prefabricated reinforced concrete wall-type guardrail construction process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106567328A true CN106567328A (en) | 2017-04-19 |
Family
ID=58540165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610975834.3A Pending CN106567328A (en) | 2016-11-07 | 2016-11-07 | Half-prefabricated reinforced concrete wall-type guardrail construction process |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403209A (en) * | 2018-11-22 | 2019-03-01 | 上海市政交通设计研究院有限公司 | A kind of pedestrian guardrail that band drips and its construction method |
| 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 |
| CN111074768A (en) * | 2020-01-14 | 2020-04-28 | 四川省公路规划勘察设计研究院有限公司 | Template-free rapid construction bridge anti-collision guardrail |
| CN112810830A (en) * | 2020-12-31 | 2021-05-18 | 四川省场道工程有限公司 | Construction method of reinforced concrete folded plate type flow guide screen for airport |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403209A (en) * | 2018-11-22 | 2019-03-01 | 上海市政交通设计研究院有限公司 | A kind of pedestrian guardrail that band drips and its construction method |
| 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 |
| CN111074768A (en) * | 2020-01-14 | 2020-04-28 | 四川省公路规划勘察设计研究院有限公司 | Template-free rapid construction bridge anti-collision guardrail |
| CN112810830A (en) * | 2020-12-31 | 2021-05-18 | 四川省场道工程有限公司 | Construction method of reinforced concrete folded plate type flow guide screen for airport |
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