CN109750598A - A kind of readily removable New Jersey safety barrier structure and construction method removed - Google Patents
A kind of readily removable New Jersey safety barrier structure and construction method removed Download PDFInfo
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- CN109750598A CN109750598A CN201811547670.XA CN201811547670A CN109750598A CN 109750598 A CN109750598 A CN 109750598A CN 201811547670 A CN201811547670 A CN 201811547670A CN 109750598 A CN109750598 A CN 109750598A
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Abstract
The present invention provides the readily removable New Jersey safety barrier structure and construction method removed, including prefabricated case beam and guardrail framework of steel reinforcement, the steps include: preparation of construction；Surveying and locating；Embedded ribs arrange；Sulphur-bonded mortar band pours；Steel bar meter and installation；Template installation；Concreting；Demoulding, health；Mortar cover pours；It is connected between block；Mortar cover broken first when dismounting, then cuts off sulphur-bonded mortar band and guardrail framework of steel reinforcement, between dismounting block after nut, steel fastener, top surface pre embedded bolt, block-by-block is hung, and is packed up, place cleaning.Present invention process is reasonable, the New Jersey safety barrier construction is simple of cast-in-place structural, under the premise of not weakening guardrail protection effect, using the readily removable New Jersey safety barrier structure removed, avoids and remove equipment using large-scale, reduce dismounting difficulty, realize the quick dismounting of cast-in-place guardrail, and then dismounting efficiency is improved, while reducing the case where broken concrete splashes, do not influence traffic safety.
Description
Technical field
The present invention relates to guardrail technical field of construction, more particularly to a kind of readily removable New Jersey safety barrier structure removed and construction party
Method.
Background technique
New Jersey's concrete guardrail is a kind of wall fence with certain section configuration, the at home friendship of each standard highway
Pacify engineering to use extensively.Wherein, in the Reconstruction Project of highway, the New Jersey safety barrier one that temporarily uses when traffic is converted
As be it is prefabricated after be placed on hardened verge, security protection power is obviously insufficient, and at the high position of requirement of shelter, such as bridge, roadbed be near water
Section etc. generally takes the New Jersey safety barrier with cast-in-place structural.
After the New Jersey safety barrier use of cast-in-place structural, needs to close lane and carry out concrete disintegrating, cut off connection steel
Muscle and last scarfing cinder work, to complete guardrail dismounting, however, the New Jersey safety barrier construction of cast-in-place structural is time-consuming and laborious, when dismounting
It needs to remove equipment using large size, there are problems that dismounting difficulty is big, removes low efficiency, and the breaking concrete block removed splashes
Influence traffic safety.
Summary of the invention
Present invention seek to address that the deficiencies in the prior art, and the readily removable New Jersey safety barrier structure removed of one kind and construction party are provided
Method.
The present invention to achieve the above object, using following technical scheme:
A kind of readily removable New Jersey safety barrier structure removed, including prefabricated case beam and guardrail framework of steel reinforcement, which is characterized in that described
Prefabricated case beam is mounted on the lower surface of extraneous bridge floor united layer, and the upper surface of the bridge floor united layer is equipped with bridge floor pitch
Pave-load layer, the inside of the prefabricated case beam are equipped with the pre-buried guardrail reinforcing bar of prefabricated case beam, and the guardrail framework of steel reinforcement is located at described pre-
The bottom of the top of box beam processed, the guardrail framework of steel reinforcement is fixedly connected with the pre-buried guardrail reinforcing bar of the prefabricated case beam, described pre-
Box beam processed is corresponding with the junction of the guardrail framework of steel reinforcement or so to have poured sulphur-bonded mortar band, the left and right sulphur-bonded mortar band it
Between be equipped with anti-stick film, the anti-stick film is located at the upper surface of the prefabricated case beam, the guardrail framework of steel reinforcement and institute
It states and has poured mortar cover between bridge floor united layer, the upper surface of the mortar cover and the bridge asphalt pavement layer
Upper surface be concordantly arranged, several block concrete guardrails, every piece of concrete guardrail have been poured in the guardrail framework of steel reinforcement
Top be embedded with several pre-buried lifting lugs in " several " character form structure, the top vertical of the concrete guardrail is pre-buried equipped with top surface
The bottom of screw rod, the top surface pre embedded bolt is located in the concrete guardrail, and the top of the top surface pre embedded bolt is equipped with steel
Connector, the steel fastener are located at the top end face of the adjacent concrete guardrail, and the top of the steel fastener is equipped with nut,
The nut thread is nested on the top surface pre embedded bolt.
Preferably, the height of the mortar cover is 20cm.
Preferably, being equipped with gasket between the nut and the steel fastener.
Preferably, the sulphur-bonded mortar band uses C30 sulphur-bonded mortar pouring molding.
The present invention also provides a kind of construction methods of readily removable New Jersey safety barrier structure removed, which is characterized in that the steps include:
A, preparation of construction: material is prepared according to project situation, safe practice is told somebody what one's real intentions are, safety construction standard；
B, design parameter measuring guardrail-profile line and absolute altitude, straightway 10- surveying and locating: are pressed using total station, level
20m, curved section 5-10m one point of measuring；
C, embedded ribs arrange: adjusting reinforcement location with contour line and after deducting protective layer thickness；
D, sulphur-bonded mortar band pours: by C30 sulphur-bonded mortar specification mixing mortar, installing false form after-pouring mortar
Band, the high 5-10cm of mortar band, width is to include embedded bar+2-5cm, along the elongated setting of route；
E, steel bar meter and installation: after sulphur-bonded mortar band is cooling, being arranged one layer of anti-stick film in sulphur-bonded mortar interband, and
By design drawing processing, assembling reinforcement；
F, template is installed: being installed reinforcing template by template specification, is formed guardrail framework of steel reinforcement；
G, it concreting: by 30-50cm thickness layering blanking, vibrates；
H, demoulding, health: form removal and health 7 days；
I, mortar cover pours: with M10 mortar pouring 20 × 20cm protective layer；
J, connect between block: top surface is bolted using the steel member in steel fastener between block；
K, it uses electric hammer or pneumatic pick to be crushed mortar cover when removing first and clears up, then cut using oxygen acetylene flame
Except the sulphur-bonded mortar and guardrail framework of steel reinforcement on sulphur-bonded mortar band, remove between block after nut, steel fastener, top surface pre embedded bolt,
It using pre-buried lifting lug, is hung, and packed up using truck-mounted crane or truck crane block-by-block, place cleaning.
The beneficial effects of the present invention are: present invention process is reasonable, the New Jersey safety barrier construction is simple of cast-in-place structural is not subtracting
Under the premise of weak guardrail protection effect, using the readily removable New Jersey safety barrier structure removed, when dismounting, is broken by using electric hammer or pneumatic pick
Broken mortar cover cuts off sulphur-bonded mortar and guardrail framework of steel reinforcement on sulphur-bonded mortar band using oxygen acetylene flame, using pre-
Lifting lug is buried, is hung using truck-mounted crane or truck crane block-by-block, avoids and removes equipment using large-scale, reduce dismounting difficulty, realize
The quick dismounting of cast-in-place guardrail, and then dismounting efficiency is improved, while reducing the case where broken concrete splashes, it does not influence
Traffic safety.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the attachment structure schematic diagram of adjacent concrete guardrail in the present invention；
In figure: 1- mortar cover；2- bridge asphalt pavement layer；3- bridge floor united layer；4- prefabricated case beam；5- nut；
6- steel fastener；The top surface 7- pre embedded bolt；8- concrete guardrail；9- guardrail framework of steel reinforcement；10- sulphur-bonded mortar band；11- anti-stick
Film；The pre-buried guardrail reinforcing bar of 12- prefabricated case beam；The pre-buried lifting lug of 13-；
It is described in detail below with reference to the embodiment of the present invention referring to attached drawing.
Specific embodiment
Below with reference to embodiment, the invention will be further described:
A kind of readily removable New Jersey safety barrier structure removed, including prefabricated case beam 4 and guardrail framework of steel reinforcement 9, which is characterized in that institute
The lower surface that prefabricated case beam 4 is mounted on extraneous bridge floor united layer 3 is stated, the upper surface of the bridge floor united layer 3 is equipped with bridge
The inside of face asphalt mixture surfacing 2, the prefabricated case beam 4 is equipped with the pre-buried guardrail reinforcing bar 12 of prefabricated case beam, the guardrail framework of steel reinforcement 9
Positioned at the top of the prefabricated case beam 4, the bottom of the guardrail framework of steel reinforcement 9 and the pre-buried guardrail reinforcing bar 12 of the prefabricated case beam are solid
Fixed connection, the prefabricated case beam 4 is corresponding with the junction of the guardrail framework of steel reinforcement 9 or so to have poured sulphur-bonded mortar band 10, a left side
It is equipped with anti-stick film 11 between the right sulphur-bonded mortar band 10, the anti-stick film 11 is located at the upper of the prefabricated case beam 4
Surface has poured mortar cover 1, the mortar cover between the guardrail framework of steel reinforcement 9 and the bridge floor united layer 3
1 upper surface is concordant with the upper surface of the bridge asphalt pavement layer 2 to be arranged, and has been poured in the guardrail framework of steel reinforcement 9 several
Block concrete guardrail 8, the top of every piece of concrete guardrail 8 are embedded with several pre-buried lifting lugs 13 in " several " character form structure,
The top vertical of the concrete guardrail 8 is equipped with top surface pre embedded bolt 7, and the bottom of the top surface pre embedded bolt 7 is located at described mixed
In solidifying soil guardrail 8, the top of the top surface pre embedded bolt 7 is equipped with steel fastener 6, and the steel fastener 6 is located at adjacent described mixed
The top end face of solidifying soil guardrail 8, the top of the steel fastener 6 are equipped with nut 5, and 5 screw thread of nut is nested with pre- in the top surface
It buries on screw rod 7.
Preferably, the height of the mortar cover 1 is 20cm.
Preferably, being equipped with gasket between the nut 5 and the steel fastener 6.
Preferably, the sulphur-bonded mortar band 10 uses C30 sulphur-bonded mortar pouring molding.
The present invention also provides a kind of construction methods of readily removable New Jersey safety barrier structure removed, which is characterized in that the steps include:
A, preparation of construction: material is prepared according to project situation, safe practice is told somebody what one's real intentions are, safety construction standard；
B, design parameter measuring guardrail-profile line and absolute altitude, straightway 10- surveying and locating: are pressed using total station, level
20m, curved section 5-10m one point of measuring；
C, embedded ribs arrange: adjusting reinforcement location with contour line and after deducting protective layer thickness；
D, sulphur-bonded mortar band 10 pours: by C30 sulphur-bonded mortar specification mixing mortar, installing false form after-pouring mortar
Band, the high 5-10cm of mortar band, width is to include embedded bar+2-5cm, along the elongated setting of route；
E, steel bar meter and installation: after sulphur-bonded mortar band 10 is cooling, it is thin that one layer of anti-stick is set between sulphur-bonded mortar band 10
Film 11, and by design drawing processing, assembling reinforcement；
F, template is installed: being installed reinforcing template by template specification, is formed guardrail framework of steel reinforcement 9；
G, it concreting: by 30-50cm thickness layering blanking, vibrates；
H, demoulding, health: form removal and health 7 days；
I, mortar cover 1 pours: with M10 mortar pouring 20 × 20cm protective layer；
J, connect between block: top surface is bolted using the steel member in steel fastener 6 between block；
K, it uses electric hammer or pneumatic pick to be crushed mortar cover 1 when removing first and clears up, then use oxygen acetylene flame
The sulphur-bonded mortar and guardrail framework of steel reinforcement 9 on sulphur-bonded mortar band 10 are cut off, nut 5, steel fastener 6, top surface are pre-buried between dismounting block
After screw rod 7, using pre-buried lifting lug 13, hung using truck-mounted crane or truck crane block-by-block, and pack up, place cleaning.
Embodiment 1
A kind of readily removable New Jersey safety barrier structure removed, including prefabricated case beam 4 and guardrail framework of steel reinforcement 9, which is characterized in that institute
The lower surface that prefabricated case beam 4 is mounted on extraneous bridge floor united layer 3 is stated, the upper surface of the bridge floor united layer 3 is equipped with bridge
The inside of face asphalt mixture surfacing 2, the prefabricated case beam 4 is equipped with the pre-buried guardrail reinforcing bar 12 of prefabricated case beam, the guardrail framework of steel reinforcement 9
Positioned at the top of the prefabricated case beam 4, the bottom of the guardrail framework of steel reinforcement 9 and the pre-buried guardrail reinforcing bar 12 of the prefabricated case beam are solid
Fixed connection, the prefabricated case beam 4 is corresponding with the junction of the guardrail framework of steel reinforcement 9 or so to have poured sulphur-bonded mortar band 10, a left side
It is equipped with anti-stick film 11 between the right sulphur-bonded mortar band 10, the anti-stick film 11 is located at the upper of the prefabricated case beam 4
Surface has poured mortar cover 1, the mortar cover between the guardrail framework of steel reinforcement 9 and the bridge floor united layer 3
1 upper surface is concordant with the upper surface of the bridge asphalt pavement layer 2 to be arranged, and has been poured in the guardrail framework of steel reinforcement 9 several
Block concrete guardrail 8, the top of every piece of concrete guardrail 8 are embedded with several pre-buried lifting lugs 13 in " several " character form structure,
The top vertical of the concrete guardrail 8 is equipped with top surface pre embedded bolt 7, and the bottom of the top surface pre embedded bolt 7 is located at described mixed
In solidifying soil guardrail 8, the top of the top surface pre embedded bolt 7 is equipped with steel fastener 6, and the steel fastener 6 is located at adjacent described mixed
The top end face of solidifying soil guardrail 8, the top of the steel fastener 6 are equipped with nut 5, and 5 screw thread of nut is nested with pre- in the top surface
It buries on screw rod 7.
The height of the mortar cover 1 is 20cm.
Gasket is equipped between the nut 5 and the steel fastener 6.
The sulphur-bonded mortar band 10 uses C30 sulphur-bonded mortar pouring molding.
The present embodiment provides a kind of construction methods of readily removable New Jersey safety barrier structure removed, and are described below:
A, preparation of construction: material is prepared according to project situation, safe practice is told somebody what one's real intentions are, safety construction standard；
B, surveying and locating: using total station, level press design parameter measuring guardrail-profile line and absolute altitude, straightway 10m,
One point of curved section 5m measuring；
C, embedded ribs arrange: adjusting reinforcement location with contour line and after deducting protective layer thickness；
D, sulphur-bonded mortar band 10 pours: by C30 sulphur-bonded mortar specification mixing mortar, installing false form after-pouring mortar
Band, the high 5cm of mortar band, width is to include embedded bar+2cm, along the elongated setting of route；
E, steel bar meter and installation: after sulphur-bonded mortar band 10 is cooling, it is thin that one layer of anti-stick is set between sulphur-bonded mortar band 10
Film 11, and by design drawing processing, assembling reinforcement；
F, template is installed: being installed reinforcing template by template specification, is formed guardrail framework of steel reinforcement 9；
G, it concreting: by 30cm thickness layering blanking, vibrates；
H, demoulding, health: form removal and health 7 days；
I, mortar cover 1 pours: with M10 mortar pouring 20 × 20cm protective layer；
J, connect between block: top surface is bolted using the steel member in steel fastener 6 between block；
K, it uses electric hammer or pneumatic pick to be crushed mortar cover 1 when removing first and clears up, then use oxygen acetylene flame
The sulphur-bonded mortar and guardrail framework of steel reinforcement 9 on sulphur-bonded mortar band 10 are cut off, nut 5, steel fastener 6, top surface are pre-buried between dismounting block
After screw rod 7, using pre-buried lifting lug 13, hung using truck-mounted crane or truck crane block-by-block, and pack up, place cleaning.
Embodiment 2
A kind of readily removable New Jersey safety barrier structure removed, including prefabricated case beam 4 and guardrail framework of steel reinforcement 9, which is characterized in that institute
The lower surface that prefabricated case beam 4 is mounted on extraneous bridge floor united layer 3 is stated, the upper surface of the bridge floor united layer 3 is equipped with bridge
The inside of face asphalt mixture surfacing 2, the prefabricated case beam 4 is equipped with the pre-buried guardrail reinforcing bar 12 of prefabricated case beam, the guardrail framework of steel reinforcement 9
Positioned at the top of the prefabricated case beam 4, the bottom of the guardrail framework of steel reinforcement 9 and the pre-buried guardrail reinforcing bar 12 of the prefabricated case beam are solid
Fixed connection, the prefabricated case beam 4 is corresponding with the junction of the guardrail framework of steel reinforcement 9 or so to have poured sulphur-bonded mortar band 10, a left side
It is equipped with anti-stick film 11 between the right sulphur-bonded mortar band 10, the anti-stick film 11 is located at the upper of the prefabricated case beam 4
Surface has poured mortar cover 1, the mortar cover between the guardrail framework of steel reinforcement 9 and the bridge floor united layer 3
1 upper surface is concordant with the upper surface of the bridge asphalt pavement layer 2 to be arranged, and has been poured in the guardrail framework of steel reinforcement 9 several
Block concrete guardrail 8, the top of every piece of concrete guardrail 8 are embedded with several pre-buried lifting lugs 13 in " several " character form structure,
The top vertical of the concrete guardrail 8 is equipped with top surface pre embedded bolt 7, and the bottom of the top surface pre embedded bolt 7 is located at described mixed
In solidifying soil guardrail 8, the top of the top surface pre embedded bolt 7 is equipped with steel fastener 6, and the steel fastener 6 is located at adjacent described mixed
The top end face of solidifying soil guardrail 8, the top of the steel fastener 6 are equipped with nut 5, and 5 screw thread of nut is nested with pre- in the top surface
It buries on screw rod 7.
The height of the mortar cover 1 is 20cm.
Gasket is equipped between the nut 5 and the steel fastener 6.
The sulphur-bonded mortar band 10 uses C30 sulphur-bonded mortar pouring molding.
The present embodiment provides a kind of construction methods of readily removable New Jersey safety barrier structure removed, and are described below:
A, preparation of construction: material is prepared according to project situation, safe practice is told somebody what one's real intentions are, safety construction standard；
B, surveying and locating: using total station, level press design parameter measuring guardrail-profile line and absolute altitude, straightway 15m,
One point of curved section 8m measuring；
C, embedded ribs arrange: adjusting reinforcement location with contour line and after deducting protective layer thickness；
D, sulphur-bonded mortar band 10 pours: by C30 sulphur-bonded mortar specification mixing mortar, installing false form after-pouring mortar
Band, the high 8cm of mortar band, width is to include embedded bar+4cm, along the elongated setting of route；
E, steel bar meter and installation: after sulphur-bonded mortar band 10 is cooling, it is thin that one layer of anti-stick is set between sulphur-bonded mortar band 10
Film 11, and by design drawing processing, assembling reinforcement；
F, template is installed: being installed reinforcing template by template specification, is formed guardrail framework of steel reinforcement 9；
G, it concreting: by 40cm thickness layering blanking, vibrates；
H, demoulding, health: form removal and health 7 days；
I, mortar cover 1 pours: with M10 mortar pouring 20 × 20cm protective layer；
J, connect between block: top surface is bolted using the steel member in steel fastener 6 between block；
K, it uses electric hammer or pneumatic pick to be crushed mortar cover 1 when removing first and clears up, then use oxygen acetylene flame
The sulphur-bonded mortar and guardrail framework of steel reinforcement 9 on sulphur-bonded mortar band 10 are cut off, nut 5, steel fastener 6, top surface are pre-buried between dismounting block
After screw rod 7, using pre-buried lifting lug 13, hung using truck-mounted crane or truck crane block-by-block, and pack up, place cleaning.
Embodiment 3
A kind of readily removable New Jersey safety barrier structure removed, including prefabricated case beam 4 and guardrail framework of steel reinforcement 9, which is characterized in that institute
The lower surface that prefabricated case beam 4 is mounted on extraneous bridge floor united layer 3 is stated, the upper surface of the bridge floor united layer 3 is equipped with bridge
The inside of face asphalt mixture surfacing 2, the prefabricated case beam 4 is equipped with the pre-buried guardrail reinforcing bar 12 of prefabricated case beam, the guardrail framework of steel reinforcement 9
Positioned at the top of the prefabricated case beam 4, the bottom of the guardrail framework of steel reinforcement 9 and the pre-buried guardrail reinforcing bar 12 of the prefabricated case beam are solid
Fixed connection, the prefabricated case beam 4 is corresponding with the junction of the guardrail framework of steel reinforcement 9 or so to have poured sulphur-bonded mortar band 10, a left side
It is equipped with anti-stick film 11 between the right sulphur-bonded mortar band 10, the anti-stick film 11 is located at the upper of the prefabricated case beam 4
Surface has poured mortar cover 1, the mortar cover between the guardrail framework of steel reinforcement 9 and the bridge floor united layer 3
1 upper surface is concordant with the upper surface of the bridge asphalt pavement layer 2 to be arranged, and has been poured in the guardrail framework of steel reinforcement 9 several
Block concrete guardrail 8, the top of every piece of concrete guardrail 8 are embedded with several pre-buried lifting lugs 13 in " several " character form structure,
The top vertical of the concrete guardrail 8 is equipped with top surface pre embedded bolt 7, and the bottom of the top surface pre embedded bolt 7 is located at described mixed
In solidifying soil guardrail 8, the top of the top surface pre embedded bolt 7 is equipped with steel fastener 6, and the steel fastener 6 is located at adjacent described mixed
The top end face of solidifying soil guardrail 8, the top of the steel fastener 6 are equipped with nut 5, and 5 screw thread of nut is nested with pre- in the top surface
It buries on screw rod 7.
The height of the mortar cover 1 is 20cm.
Gasket is equipped between the nut 5 and the steel fastener 6.
The sulphur-bonded mortar band 10 uses C30 sulphur-bonded mortar pouring molding.
The present embodiment provides a kind of construction methods of readily removable New Jersey safety barrier structure removed, and are described below:
A, preparation of construction: material is prepared according to project situation, safe practice is told somebody what one's real intentions are, safety construction standard；
B, surveying and locating: using total station, level press design parameter measuring guardrail-profile line and absolute altitude, straightway 20m,
One point of curved section 10m measuring；
C, embedded ribs arrange: adjusting reinforcement location with contour line and after deducting protective layer thickness；
D, sulphur-bonded mortar band 10 pours: by C30 sulphur-bonded mortar specification mixing mortar, installing false form after-pouring mortar
Band, the high 10cm of mortar band, width is to include embedded bar+5cm, along the elongated setting of route；
E, steel bar meter and installation: after sulphur-bonded mortar band 10 is cooling, it is thin that one layer of anti-stick is set between sulphur-bonded mortar band 10
Film 11, and by design drawing processing, assembling reinforcement；
F, template is installed: being installed reinforcing template by template specification, is formed guardrail framework of steel reinforcement 9；
G, it concreting: by 50cm thickness layering blanking, vibrates；
H, demoulding, health: form removal and health 7 days；
I, mortar cover 1 pours: with M10 mortar pouring 20 × 20cm protective layer；
J, connect between block: top surface is bolted using the steel member in steel fastener 6 between block；
K, it uses electric hammer or pneumatic pick to be crushed mortar cover 1 when removing first and clears up, then use oxygen acetylene flame
The sulphur-bonded mortar and guardrail framework of steel reinforcement 9 on sulphur-bonded mortar band 10 are cut off, nut 5, steel fastener 6, top surface are pre-buried between dismounting block
After screw rod 7, using pre-buried lifting lug 13, hung using truck-mounted crane or truck crane block-by-block, and pack up, place cleaning.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as using the various improvement that the inventive concept and technical scheme of the present invention carry out, or not improved directly apply to other fields
It closes, it is within the scope of the present invention.
Claims (5)
1. a kind of readily removable New Jersey safety barrier structure removed, including prefabricated case beam (4) and guardrail framework of steel reinforcement (9), which is characterized in that
The prefabricated case beam (4) is mounted on the lower surface of extraneous bridge floor united layer (3), the upper surface of the bridge floor united layer (3)
It is equipped with bridge asphalt pavement layer (2), the inside of the prefabricated case beam (4) is equipped with the pre-buried guardrail reinforcing bar (12) of prefabricated case beam, institute
State the top that guardrail framework of steel reinforcement (9) are located at the prefabricated case beam (4), the bottom of the guardrail framework of steel reinforcement (9) with it is described pre-
The pre-buried guardrail reinforcing bar (12) of box beam processed is fixedly connected, and the junction of the prefabricated case beam (4) and the guardrail framework of steel reinforcement (9) is left
Right correspondence has poured sulphur-bonded mortar band (10), is equipped with anti-stick film (11) between the sulphur-bonded mortar band (10) of left and right, described
Anti-stick film (11) is located at the upper surface of the prefabricated case beam (4), the guardrail framework of steel reinforcement (9) and the bridge floor integration
It has been poured mortar cover (1) between layer (3), the upper surface of the mortar cover (1) and the bridge asphalt pavement layer (2)
Upper surface be concordantly arranged, has poured several block concrete guardrails (8), every piece of coagulation in the guardrail framework of steel reinforcement (9)
The top of native guardrail (8) is embedded with several pre-buried lifting lugs (13) in " several " character form structure, the top of the concrete guardrail (8)
Top surface pre embedded bolt (7) are equipped with vertically, the bottom of the top surface pre embedded bolt (7) is located in the concrete guardrail (8), described
The top of top surface pre embedded bolt (7) is equipped with steel fastener (6), and the steel fastener (6) is located at the adjacent concrete guardrail (8)
Top end face, the top of the steel fastener (6) is equipped with nut (5), and nut (5) screw thread is nested in the pre-buried spiral shell in the top surface
On bar (7).
2. the readily removable New Jersey safety barrier structure removed of one kind according to claim 1, which is characterized in that the mortar cover
(1) height is 20cm.
3. the readily removable New Jersey safety barrier structure removed of one kind according to claim 1, which is characterized in that the nut (5) with
Gasket is equipped between the steel fastener (6).
4. the readily removable New Jersey safety barrier structure removed of one kind according to claim 1, which is characterized in that the sulphur-bonded mortar band
(10) C30 sulphur-bonded mortar pouring molding is used.
5. a kind of construction method of the readily removable New Jersey safety barrier structure removed as claimed in claim 4, which is characterized in that its step
Are as follows:
A, preparation of construction: material is prepared according to project situation, safe practice is told somebody what one's real intentions are, safety construction standard；
B, surveying and locating: using total station, level press design parameter measuring guardrail-profile line and absolute altitude, straightway 10-20m,
One point of curved section 5-10m measuring；
C, embedded ribs arrange: adjusting reinforcement location with contour line and after deducting protective layer thickness；
D, sulphur-bonded mortar band (10) pours: by C30 sulphur-bonded mortar specification mixing mortar, installing false form after-pouring mortar
Band, the high 5-10cm of mortar band, width is to include embedded bar+2-5cm, along the elongated setting of route；
E, steel bar meter and installation: after sulphur-bonded mortar band (10) is cooling, it is thin that one layer of anti-stick is set between sulphur-bonded mortar band (10)
Film (11), and by design drawing processing, assembling reinforcement；
F, template is installed: being installed reinforcing template by template specification, is formed guardrail framework of steel reinforcement (9)；
G, it concreting: by 30-50cm thickness layering blanking, vibrates；
H, demoulding, health: form removal and health 7 days；
I, mortar cover (1) pours: with M10 mortar pouring 20 × 20cm protective layer；
J, connect between block: top surface is bolted using the steel member in steel fastener (6) between block；
K, it uses electric hammer or pneumatic pick to be crushed mortar cover (1) when removing first and clears up, then cut using oxygen acetylene flame
Except the sulphur-bonded mortar and guardrail framework of steel reinforcement (9) on sulphur-bonded mortar band (10), nut (5), steel fastener (6), top between block are removed
After face pre embedded bolt (7), using pre-buried lifting lug (13), hung using truck-mounted crane or truck crane block-by-block, and pack up, cleaning room
Ground.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811547670.XA CN109750598A (en) | 2018-12-18 | 2018-12-18 | A kind of readily removable New Jersey safety barrier structure and construction method removed |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811547670.XA CN109750598A (en) | 2018-12-18 | 2018-12-18 | A kind of readily removable New Jersey safety barrier structure and construction method removed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468631A (en) * | 2019-08-06 | 2019-11-19 | 中铁第四勘察设计院集团有限公司 | Traffic route with CFG He the box road structure of armored concrete |
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| CN114032770A (en) * | 2021-10-20 | 2022-02-11 | 中国建筑第七工程局有限公司 | Construction method of cast-in-place concrete anti-collision guardrail for expressway bridge in earthquake-prone area |
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| JP2015071907A (en) * | 2013-10-03 | 2015-04-16 | 株式会社奥村組 | Mounting structure of concrete wall railing |
| CN103911951A (en) * | 2014-02-27 | 2014-07-09 | 北京城建道桥建设集团有限公司 | Special formwork for bridge integrated cast-in-situ anti-collision barrier and hanging plate and construction method thereof |
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| CN110528386A (en) * | 2019-09-09 | 2019-12-03 | 中国建筑土木建设有限公司 | High-speed railway bridge deck system structure based on prefabricated cable grooves and construction method thereof |
| CN114032770A (en) * | 2021-10-20 | 2022-02-11 | 中国建筑第七工程局有限公司 | Construction method of cast-in-place concrete anti-collision guardrail for expressway bridge in earthquake-prone area |
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