CN204849773U - It protects device of a bond stress to increase back cover concrete and steel - Google Patents
It protects device of a bond stress to increase back cover concrete and steel Download PDFInfo
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- CN204849773U CN204849773U CN201520496288.6U CN201520496288U CN204849773U CN 204849773 U CN204849773 U CN 204849773U CN 201520496288 U CN201520496288 U CN 201520496288U CN 204849773 U CN204849773 U CN 204849773U
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Abstract
The utility model belongs to the technical field of deep water basis back cover concrete construction, concretely relates to it protects device of a bond stress to increase back cover concrete and steel. It protects the bond stress between the section of thick bamboo to have increased back cover concrete and steel, the at utmost has improved construction factor of safety, an it protects device of a bond stress to increase back cover concrete and steel, protect a section of thick bamboo including the steel, the steel protects the back cover concrete that bobbin base portion pour, the steel protects and is equipped with a plurality of floors in the back cover concrete of bobbin base portion, floor welded connection protects bobbin base portion week side at the steel, welded connection has a plurality of circles to use the steel to protect section of thick bamboo center for the circumferential reinforcement in the common centre of a circle between a plurality of floors, the welding has the radial reinforcing bar of a plurality of radial settings between the circumferential reinforcement. The utility model discloses make full use of reinforcing bar with ribbing net piece and floor combined action, effectual increase steel protect the area of contact of a section of thick bamboo and back cover concrete, and the better provides decurrent counter -force vertical to the back cover concrete.
Description
Technical field
The utility model belongs to the technical field of deep water foundation bottom concrete construction, is specifically related to a kind of device increasing bottom concrete and steel pile casting bond stress.
Background technology
Along with the development of China's economic construction, the deep-water bridge crossing over great rivers also gets more and more.The cofferdam adopted in deepwater bridge construction, being the operation platform of drilled pile in early stage, is again the water-retaining structure of later stage bearing platform construction, is the Focal point and difficult point in construction always.During the cofferdam construction of basis, after perfusion bottom concrete, will carry out drawing water and form anhydrous construction environment in cofferdam, now cofferdam come mainly through the bond stress between bottom concrete and steel pile casting and the weight of concrete self jointly resist suffered by cofferdam to buoyancy.
Due to bottom concrete and steel pile casting bond stress current general calculate in usually adopt test method(s) and empirical method two kinds of obtaining value methods, testing error and construction deviation larger.Therefore, under the prerequisite of theoretical computationally secure, how increasing the bond stress between bottom concrete and steel pile casting, at utmost improve safety factor, is the important problem considered back cover construction period.
Summary of the invention
The utility model, in order to increase the bond stress between bottom concrete and steel pile casting, at utmost improves construction safety coefficient, provides a kind of device increasing bottom concrete and steel pile casting bond stress.
The utility model takes following technical scheme: a kind of device increasing bottom concrete and steel pile casting bond stress, comprise steel pile casting, the bottom concrete of building bottom steel pile casting, some floors are provided with in bottom concrete bottom steel pile casting, floor is welded to connect all sides bottom steel pile casting, be welded to connect the circumferential reinforcement that some circles are together circle center with steel pile casting center between some floors, between circumferential reinforcement, be welded with the radial reinforcing bar that some radial directions are arranged.
Described floor is provided with 4 pieces, and all sides of every two floors uniform welding steel pile casting in 90 °, floor is the equilateral right-angled triangle steel plate being of a size of 250 × 250mm.
Described circumferential reinforcement is provided with 3 circles, and the spacing between adjacent circumferential reinforcement is 10cm.
Described circumferential reinforcement is connected with floor bottom welding.
Compared with prior art, the beneficial effects of the utility model: make full use of Ribbed Bar mesh sheet and floor acting in conjunction, the effective contact area increasing steel pile casting and bottom concrete, better provides downward counter-force vertical to bottom concrete.Construct convenient, less input, and safety is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is Ribbed Bar mesh sheet top view;
1-steel pile casting in figure, 2-bottom concrete, 3-floor, 4-circumferential reinforcement, the radial reinforcing bar of 5-.
Detailed description of the invention
As shown in Figure 1, a kind of device increasing bottom concrete and steel pile casting bond stress, comprise steel pile casting 1, the bottom concrete 2 of building bottom steel pile casting 1, some floors 3 are provided with in bottom concrete 2 bottom steel pile casting 1, floor 3 is welded to connect all sides bottom steel pile casting 1, is welded with some circle circumferential reinforcements 4 between floor 3, is welded with some radial reinforcing bars 5 between circumferential reinforcement 4.
Described floor 3 is provided with 4 pieces, every two floors 3 uniform welding steel pile casting in 90 ° 1 week side, and floor is the equilateral right-angled triangle steel plate being of a size of 250 × 250mm.
Described circumferential reinforcement 4 is provided with 3 circles, and the spacing between adjacent circumferential reinforcement 4 is 10cm.
Described circumferential reinforcement 4 is connected with floor 3 bottom welding.
Floor adopts 10mm steel plate to weld with steel pile casting, and arrange four pieces in steel pile casting direction in 90 ° respectively, floor is of a size of 250 × 250 equilateral right angles; Radial reinforcing bar adopts the HRB335 level reinforcing bar of Φ 14mm, be connected with steel pile casting by the form of welding, 4 are arranged respectively in steel pile casting direction in 90 °, circumferential reinforcement and floor, radial reinforcement welding form Ribbed Bar mesh sheet, the circumferential reinforcement HRB335 level reinforcing bar of Φ 14mm, spacing 10cm, arranges 3 circles in radial direction.
Specific implementation process:
1, floor makes: after steel pile casting makes completion of processing, around steel pile casting, four pieces of floors are welded in 90 ° of directions.
2, radial reinforcement fabrication: after floor welding, around steel pile casting, below floor, the HRB335 level reinforcing bar of 4 Φ 14mm is welded in 90 ° of directions.
3, circumferential reinforcement makes: below floor and radial reinforcing bar, by the HRB335 level reinforcing bar of circumferential reinforcement Φ 14mm, arrange 3 circles according to radial spacing 10cm, with floor, radial reinforcement welding.
4, after increasing the device completion of processing of bottom concrete and steel pile casting bond stress, steel pile casting carries out inserted to play to design altitude, then builds bottom concrete.
Claims (4)
1. one kind increases the device of bottom concrete and steel pile casting bond stress, comprise steel pile casting (1), the bottom concrete (2) that steel pile casting (1) bottom is built, it is characterized in that: in the bottom concrete (2) of steel pile casting (1) bottom, be provided with some floors (3), floor (3) is welded to connect in all sides, steel pile casting (1) bottom, be welded to connect the circumferential reinforcement (4) that some circles are together circle center with steel pile casting center between some floors (3), between circumferential reinforcement (4), be welded with the radial reinforcing bar (5) that some radial directions are arranged.
2. the device of increase bottom concrete according to claim 1 and steel pile casting bond stress, it is characterized in that: described floor (3) is provided with 4 pieces, every two floor (3) uniform welding in 90 ° steel pile casting (1) all sides, floor is the equilateral right-angled triangle steel plate being of a size of 250 × 250mm.
3. the device of increase bottom concrete according to claim 2 and steel pile casting bond stress, is characterized in that: described circumferential reinforcement (4) is provided with 3 circles, and the spacing between adjacent circumferential reinforcement (4) is 10cm.
4. the device of increase bottom concrete according to claim 3 and steel pile casting bond stress, is characterized in that: described circumferential reinforcement (4) is connected with floor (3) bottom welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520496288.6U CN204849773U (en) | 2015-07-10 | 2015-07-10 | It protects device of a bond stress to increase back cover concrete and steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520496288.6U CN204849773U (en) | 2015-07-10 | 2015-07-10 | It protects device of a bond stress to increase back cover concrete and steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204849773U true CN204849773U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520496288.6U Active CN204849773U (en) | 2015-07-10 | 2015-07-10 | It protects device of a bond stress to increase back cover concrete and steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204849773U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217680A (en) * | 2017-05-16 | 2017-09-29 | 中交武汉港湾工程设计研究院有限公司 | The method for reducing the device and construction of steel suspended box cofferdam bottoming concrete thickness |
| CN109778891A (en) * | 2019-01-03 | 2019-05-21 | 中交二航局第四工程有限公司 | A method of the enhancing back cover bond stress based on offshore steel taper pile basis |
-
2015
- 2015-07-10 CN CN201520496288.6U patent/CN204849773U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217680A (en) * | 2017-05-16 | 2017-09-29 | 中交武汉港湾工程设计研究院有限公司 | The method for reducing the device and construction of steel suspended box cofferdam bottoming concrete thickness |
| CN107217680B (en) * | 2017-05-16 | 2022-05-24 | 中交武汉港湾工程设计研究院有限公司 | Device for reducing thickness of bottom sealing concrete of steel suspension box cofferdam and construction method |
| CN109778891A (en) * | 2019-01-03 | 2019-05-21 | 中交二航局第四工程有限公司 | A method of the enhancing back cover bond stress based on offshore steel taper pile basis |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |