CN109778891A - A method of the enhancing back cover bond stress based on offshore steel taper pile basis - Google Patents
A method of the enhancing back cover bond stress based on offshore steel taper pile basis Download PDFInfo
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- CN109778891A CN109778891A CN201910005436.2A CN201910005436A CN109778891A CN 109778891 A CN109778891 A CN 109778891A CN 201910005436 A CN201910005436 A CN 201910005436A CN 109778891 A CN109778891 A CN 109778891A
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Abstract
The invention discloses a kind of methods of enhancing back cover bond stress based on offshore steel taper pile basis, it is related to technical field of civil engineering, it is strong including prefabricated shearing, prefabricated sealing of hole component, the welding of spiral bar, prefabricated component assembling and concrete casting sealing and etc., the present invention is strong by the periphery setting shearing in steel-pipe pile, the part stress that reinforced concrete floor passes over can be passed on the direction perpendicular to steel-pipe pile axis, to improve the anti-pressure ability of reinforced concrete floor, simultaneously, the extension of setting can guarantee the fastness of concrete and the strong connection of shearing.
Description
Technical field
The present invention relates to belong to civil engineering plant field, and in particular to a kind of structure is simple, difficulty of construction is low, mechanical property
It can the excellent method for enhancing back cover bond stress based on offshore steel taper pile basis.
Background technique
Steel pipe composite pile is mainly made of steel pile casting and the concrete-pile in steel pile casting.In recent years, large diameter steel pipe
Composite pile is excellent with its sufficiently large bearing capacity, relatively simple process for sinking, lesser soil discharge quantity and good bending resistance etc.
Point is widely used in the deep water foundation engineering of super-huge bridge spanning the sea, the science of bridge building of harbour engineering and high earthquake intensity area.
In particular with the development and exploitation of the increase of China's steel yield, anti-corrosion of steel pipe pile new technology and new material, steel pipe composite pile
It is increasingly subject to the attention and extensive use of designer.
In conventional method, the sealing-in mode of steel-pipe pile and bottom plate be typically all by way of being poured concrete, but by
In it as support platform, need to bear complicated stress situation, cracking occurs in the junction that both often occurs, infiltration shows
As having seriously affected construction speed and quality.
Summary of the invention
The purpose of the present invention is to provide a kind of methods of enhancing back cover bond stress based on offshore steel taper pile basis, with solution
Drawbacks described above certainly caused by the prior art.
A method of the enhancing back cover bond stress based on offshore steel taper pile basis includes the following steps:
(1) prefabricated shearing is strong: taking the channel steel of certain length and bends to annular channel steel, in the both ends vertical welding band of channel steel
There is the connecting plate one of connecting hole one, and weld reinforcing rib therebetween, takes the extension that length is 20-30cm and along annular
The diametrical direction of channel steel is welded in its outside；
(2) prefabricated sealing of hole component: taking the strip of certain length and bends to annular strip, and the both ends of annular strip are vertical
It is welded with the connecting plate two with connecting hole two, in annular strip and the bottom end vertical welding annular back cover plate of connecting plate two；
(3) welding of spiral bar: taking the band of certain length and is fully welded fixation along the side of steel-pipe pile, and the band is in
Spirally, the axis of steel-pipe pile and the angle of horizontal plane are acute angle；
(4) prefabricated component assembles: prefabricated sealing of hole component being wrapped on the outside of steel-pipe pile, and passes through bolt for the two of annular strip
End is connected and fixed, and the annular back cover plate is parallel to the horizontal plane, and rubber pad is additionally provided between annular strip and steel-pipe pile, then
Shearing is good for again and is wrapped on the outside of steel-pipe pile, and is connected and fixed the both ends of annular channel steel by bolt, the annular channel steel
Bottom surface it is vertical with the axis of steel-pipe pile, finally annular channel steel is fixedly welded on the outside of steel-pipe pile；
(5) concrete casting sealing: prefabricated cylinder-shaped template is fixed on to the periphery of steel-pipe pile, thinks cylinder-shaped template
Inside is poured concrete, after it solidifies drying and moulding, forms reinforced concrete floor, steel pipe can be completed in cylinder-shaped template of dismantling
The sealing of stake and bottom plate.
Preferably, the extension has drawn from cold-rolled steel, and cross-sectional shape is concave, " ten " font, in rectangle
Any one.
Preferably, the welding manner of the annular back cover plate, annular channel steel and steel-pipe pile is to be broken, and every section is broken length and is
10mm, all weld seams are fillet weld, fillet weld size 10mm.
Preferably, the width of the annular channel steel is 20-30cm.
Preferably, the rubber pad with a thickness of 2-4mm.
Preferably, the reinforced concrete floor with a thickness of 0.65-0.75m.
Preferably, the band uses cold-rolled steel sheet, and the width of band is 4-8cm.
The present invention has the advantages that
(1) present invention is strong by the periphery setting shearing in steel-pipe pile, the portion that reinforced concrete floor can be passed over
The component of stress is passed on the direction perpendicular to steel-pipe pile axis, so that the anti-pressure ability of reinforced concrete floor is improved, meanwhile,
The extension of setting can guarantee the fastness of concrete and the strong connection of shearing；
(2) heretofore described sealing of hole component can play the role of sealing, avoid generating between bottom plate and steel-pipe pile
Seep water phenomenon, meanwhile, connector is also used as to consolidate the attachment force of concrete and steel-pipe pile；
(3) by the way of being broken, reduce and steel-pipe pile itself is caused to be damage, also save wlding, every section is broken
Length is 10mm, and all weld seams are fillet weld, and fillet weld size 10mm ensure that the fastness of welding, find through long-term practice,
The phenomenon that not falling off, effect are fine；
(4) binding force of concrete and steel-pipe pile can be improved in the spiral band for being welded in steel-pipe pile side, to guarantee
It can be in the ability to bear under complex stress environment.
Detailed description of the invention
Fig. 1, Fig. 2 are the structural schematic diagram of different perspectives of the present invention.
Fig. 3 is cross-sectional view of the invention.
Wherein, 1- annular channel steel, 2- connecting hole one, 3- connecting plate one, 4- reinforcing rib, 5- extension, 6- annular strip, 7-
Connecting hole two, 8- connecting plate two, 9- annular back cover plate, 10- band, 11- rubber pad, 12- reinforced concrete floor, 13- steel-pipe pile.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Embodiment 1
As shown in Figure 1 to Figure 3, a method of the enhancing back cover bond stress based on offshore steel taper pile basis, including it is as follows
Step:
(1) prefabricated shearing is strong: taking the channel steel of certain length and bends to annular channel steel 1, in the both ends vertical welding of channel steel
Connecting plate 1 with connecting hole 1, and reinforcing rib 4 is welded therebetween, take the extension 5 that length is 20-30cm and edge
The diametrical direction of annular channel steel 1 be welded in its outside；
(2) prefabricated sealing of hole component: taking the strip of certain length and bends to annular strip 6, and the both ends of annular strip 6 are hung down
It directly is welded with the connecting plate 28 with connecting hole 27, in annular strip 6 and the bottom end vertical welding annular back cover of connecting plate 28
Plate 9；
(3) welding of spiral bar: taking the band 10 of certain length and is fully welded fixation, the band along the side of steel-pipe pile 13
The helically formula of material 10, the axis of steel-pipe pile 13 and the angle of horizontal plane are acute angle；
(4) prefabricated component assembles: prefabricated sealing of hole component being wrapped in 13 outside of steel-pipe pile, and passes through bolt for annular strip 6
Both ends be connected and fixed, the annular back cover plate 9 is parallel to the horizontal plane, and is additionally provided with rubber between annular strip 6 and steel-pipe pile 13
Shearing is then good for again and is wrapped in 13 outside of steel-pipe pile, and is connected and fixed the both ends of annular channel steel 1 by bolt by rubber mat 11,
The bottom surface of the annular channel steel 1 is vertical with the axis of steel-pipe pile 13, and finally annular channel steel 1 is fixedly welded on outside steel-pipe pile 13
Side；
(5) concrete casting sealing: prefabricated cylinder-shaped template is fixed on to the periphery of steel-pipe pile 13, thinks cylinder-shaped template
Inside be poured concrete, after it solidifies drying and moulding, form reinforced concrete floor 12, cylinder-shaped template of dismantling can be completed
The sealing of steel-pipe pile 13 and bottom plate.
Embodiment 2
As shown in Figure 1 to Figure 3, a method of the enhancing back cover bond stress based on offshore steel taper pile basis, including it is as follows
Step:
(1) prefabricated shearing is strong: taking the channel steel of certain length and bends to annular channel steel 1, in the both ends vertical welding of channel steel
Connecting plate 1 with connecting hole 1, and reinforcing rib 4 is welded therebetween, take the extension 5 that length is 20-30cm and edge
The diametrical direction of annular channel steel 1 be welded in its outside；
(2) prefabricated sealing of hole component: taking the strip of certain length and bends to annular strip 6, and the both ends of annular strip 6 are hung down
It directly is welded with the connecting plate 28 with connecting hole 27, in annular strip 6 and the bottom end vertical welding annular back cover of connecting plate 28
Plate 9；
(3) welding of spiral bar: taking the band 10 of certain length and is fully welded fixation, the band along the side of steel-pipe pile 13
The helically formula of material 10, the axis of steel-pipe pile 13 and the angle of horizontal plane are acute angle；
(4) prefabricated component assembles: prefabricated sealing of hole component being wrapped in 13 outside of steel-pipe pile, and passes through bolt for annular strip 6
Both ends be connected and fixed, the annular back cover plate 9 is parallel to the horizontal plane, and is additionally provided with rubber between annular strip 6 and steel-pipe pile 13
Shearing is then good for again and is wrapped in 13 outside of steel-pipe pile, and is connected and fixed the both ends of annular channel steel 1 by bolt by rubber mat 11,
The bottom surface of the annular channel steel 1 is vertical with the axis of steel-pipe pile 13, and finally annular channel steel 1 is fixedly welded on outside steel-pipe pile 13
Side；
(5) concrete casting sealing: prefabricated cylinder-shaped template is fixed on to the periphery of steel-pipe pile 13, thinks cylinder-shaped template
Inside be poured concrete, after it solidifies drying and moulding, form reinforced concrete floor 12, cylinder-shaped template of dismantling can be completed
The sealing of steel-pipe pile 13 and bottom plate.
In the present embodiment, the extension 5 has drawn from cold-rolled steel, cross-sectional shape be concave, " ten " font,
Any one in rectangle.
In the present embodiment, the welding manner of the annular back cover plate 9, annular channel steel 1 and steel-pipe pile 13 is to be broken, every section
Being broken length is 10mm, and all weld seams are fillet weld, and fillet weld size 10mm ensure that the fastness of welding, through long-term practice
It was found that the phenomenon that not falling off, effect is fine.
In the present embodiment, the width of the annular channel steel 1 is 20-30cm, ensure that the stiffness and strength of itself.
In the present embodiment, the rubber pad 11 with a thickness of 2-4mm, it is preferred to use 2mm, using rubber pad 11 flexible
As sealing element, sealing effect is good.
In the present embodiment, the reinforced concrete floor 12 with a thickness of 0.65-0.75m, while proof strength, drop
The low usage amount of material.
In the present embodiment, the band 10 uses cold-rolled steel sheet, and the width of band 10 is 4-8cm, is welded in steel-pipe pile
The binding force of concrete Yu steel-pipe pile 13 can be improved in the spiral band 10 of 13 sides, to guarantee that it can be in complex stress ring
Ability to bear under border, and width is preferably 5cm, which also has optimum efficiency.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, in all respects are merely illustrative, not the only.Institute
Have within the scope of the present invention or is included in the invention in the change being equal in the scope of the present invention.
Claims (7)
1. a kind of method of the enhancing back cover bond stress based on offshore steel taper pile basis, which comprises the steps of:
(1) prefabricated shearing is strong: taking the channel steel of certain length and bends to annular channel steel (1), in the both ends vertical welding band of channel steel
There is the connecting plate one (3) of connecting hole one (2), and weld reinforcing rib (4) therebetween, taking length is the extension of 20-30cm
(5) and along the diametrical direction of annular channel steel (1) it is welded in its outside；
(2) prefabricated sealing of hole component: taking the strip of certain length and bends to annular strip (6), and the both ends of annular strip (6) are hung down
It directly is welded with the connecting plate two (8) with connecting hole two (7), in annular strip (6) and the bottom end vertical welding of connecting plate two (8)
Annular back cover plate (9)；
(3) welding of spiral bar: taking the band (10) of certain length and is fully welded fixation, the band along the side of steel-pipe pile (13)
Material (10) helically formula, the axis of steel-pipe pile (13) and the angle of horizontal plane are acute angle；
(4) prefabricated component assembles: prefabricated sealing of hole component being wrapped on the outside of steel-pipe pile (13), and passes through bolt for annular strip (6)
Both ends be connected and fixed, the annular back cover plate (9) is parallel to the horizontal plane, between annular strip (6) and steel-pipe pile (13) also
Equipped with rubber pad (11), then shearing is good for again and is wrapped on the outside of steel-pipe pile (13), and passes through bolt for the two of annular channel steel (1)
End is connected and fixed, and the bottom surface of the annular channel steel (1) is vertical with the axis of steel-pipe pile (13), finally welds annular channel steel (1)
It connects and is fixed on the outside of steel-pipe pile (13)；
(5) concrete casting sealing: prefabricated cylinder-shaped template is fixed on to the periphery of steel-pipe pile (13), thinks cylinder-shaped template
Inside is poured concrete, after it solidifies drying and moulding, is formed reinforced concrete floor (12), cylinder-shaped template of dismantling can be completed
The sealing of steel-pipe pile (13) and bottom plate.
2. a kind of method of enhancing back cover bond stress based on offshore steel taper pile basis according to claim 1, feature
Be: the extension (5) has drawn from cold-rolled steel, and cross-sectional shape is concave, " ten " font, any one in rectangle
Kind.
3. a kind of method of enhancing back cover bond stress based on offshore steel taper pile basis according to claim 2, feature
Be: the welding manner of the annular back cover plate (9), annular channel steel (1) and steel-pipe pile (13) is to be broken, and every section is broken length and is
10mm, all weld seams are fillet weld, fillet weld size 10mm.
4. a kind of method of enhancing back cover bond stress based on offshore steel taper pile basis according to claim 1, feature
Be: the width of the annular channel steel (1) is 20-30cm.
5. a kind of method of enhancing back cover bond stress based on offshore steel taper pile basis according to claim 4, feature
Be: the rubber pad (11) with a thickness of 2-4mm.
6. a kind of method of enhancing back cover bond stress based on offshore steel taper pile basis according to claim 5, feature
Be: the reinforced concrete floor (12) with a thickness of 0.65-0.75m.
7. a kind of method of enhancing back cover bond stress based on offshore steel taper pile basis according to claim 5, feature
Be: the band (10) uses cold-rolled steel sheet, and the width of band (10) is 4-8cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910005436.2A CN109778891A (en) | 2019-01-03 | 2019-01-03 | A method of the enhancing back cover bond stress based on offshore steel taper pile basis |
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| CN201910005436.2A CN109778891A (en) | 2019-01-03 | 2019-01-03 | A method of the enhancing back cover bond stress based on offshore steel taper pile basis |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111206612A (en) * | 2020-01-19 | 2020-05-29 | 中国十七冶集团有限公司 | Use method of concrete grouting template for fan foundation |
| CN111395381A (en) * | 2020-03-25 | 2020-07-10 | 丁红岩 | Rotary pile raft type apron board foundation and construction method thereof |
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| CN104631464A (en) * | 2015-01-21 | 2015-05-20 | 上海市基础工程集团有限公司 | Construction method for blocking up between bridge high-pile cap underwater steel jacket box bottom and steel casing |
| CN204849773U (en) * | 2015-07-10 | 2015-12-09 | 中铁三局集团有限公司 | It protects device of a bond stress to increase back cover concrete and steel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206612A (en) * | 2020-01-19 | 2020-05-29 | 中国十七冶集团有限公司 | Use method of concrete grouting template for fan foundation |
| CN111395381A (en) * | 2020-03-25 | 2020-07-10 | 丁红岩 | Rotary pile raft type apron board foundation and construction method thereof |
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