CN110318408B - Recyclable temporary bracket for installing steel sheet pile cofferdam enclosing purlin - Google Patents
Recyclable temporary bracket for installing steel sheet pile cofferdam enclosing purlin Download PDFInfo
- Publication number
- CN110318408B CN110318408B CN201910714568.2A CN201910714568A CN110318408B CN 110318408 B CN110318408 B CN 110318408B CN 201910714568 A CN201910714568 A CN 201910714568A CN 110318408 B CN110318408 B CN 110318408B
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- China
- Prior art keywords
- cross rod
- welded
- upright post
- rod
- ring
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- 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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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 48
- 239000010959 steel Substances 0.000 title claims abstract description 48
- 238000009434 installation Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 11
- 230000007547 defect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 241001513371 Knautia arvensis Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
A but, interim bracket that is used for steel sheet pile cofferdam to enclose purlin installation, characterized by: the upper ring and the lower ring are arranged on the upright post provided with the graduated scale by bolts; a first cross rod is welded on the side wall of the lower ring, and two ends of the first inclined rod are respectively welded on the top surface of the left end of the first cross rod and one side surface of the upper ring, so that the upper ring and the lower ring form a triangular bracket structure; the upper end of a stop block is welded on the lower bottom surface of the first cross rod, two ends of a second inclined rod are respectively welded at the left end of the first cross rod and the bottom end of the stop block, and a groove is formed by the space between the stop block and the upright post; two ends of the third inclined rod are respectively welded on the right end part of the second cross rod and the upright post to form a third triangular supporting seat structure; one end of the enclosing purlin is welded on the top surface of the right end of the second cross rod; a groove between a stop block and an upright post in the temporary bracket device is clamped on the wall of the steel casing; the structure is formed into the recyclable temporary bracket for installing the steel sheet pile cofferdam surrounding purlin.
Description
Technical Field
The invention relates to the field of construction of steel sheet pile cofferdams, in particular to a recyclable temporary bracket device for installing a surrounding purlin of a steel sheet pile cofferdam.
Background
At present, in the construction of a river-crossing sea bridge, most of the deepwater foundation is constructed by adopting a steel sheet pile cofferdam, and higher requirements are put on how to position the steel sheet pile and the positioning precision. In the construction process of the steel sheet pile cofferdam, the positioning accuracy of the enclosing purlin directly relates to the position, the size and the elevation of the steel sheet pile cofferdam. Temporary corbels of cofferdam surrounding purlins in traditional construction are mostly fed on site and then welded on pile foundation pile casing directly. In the prior art, the defects of large material loss, inconvenient operation, low construction work efficiency and the like exist.
Disclosure of Invention
The invention aims at overcoming the defect of the prior steel sheet pile cofferdam mounting purlin, and provides a recyclable temporary bracket for the steel sheet pile cofferdam purlin mounting; when the temporary bracket device is installed on the purlin, the temporary bracket is supported and positioned, and the temporary bracket device has the characteristics of accurate installation and positioning of the purlin, high quality, stability and reliability, simple structure, convenient disassembly and recycling; the method has the advantages of strong site practical operability, convenience and rapidness, improves the construction progress, is favorable for the turnover utilization of materials, and saves the construction cost.
The technical scheme includes that the recyclable temporary bracket for installing the steel sheet pile cofferdam enclosing purlin comprises a stand column, an upper ring, a lower ring, an inclined rod, a cross rod, a stop block, a graduated scale, a top plate, a hoisting hole and a fastening bolt.
The recyclable temporary bracket for installing the steel sheet pile cofferdam surrounding purlin is characterized by comprising a steel sheet pile cofferdam surrounding purlin; a graduated scale is arranged on the side surface of the upright post, so that zero graduation lines of the graduated scale are flush with the upper edge of the second cross rod, and a baffle plate with holes is arranged at the top end of the upright post; the upper ring and the lower ring are respectively sleeved at the upper end of the upright post, a first cross rod is welded on the side wall of the lower ring, and two ends of the first inclined rod are respectively welded on the top surface of the left end of the first cross rod and one side surface of the upper ring, so that a first triangular bracket structure is formed among the first cross rod, the first inclined rod, the upper ring and the lower ring;
one end of the stop block is welded on the lower bottom surface of the first cross rod, and a groove is formed at the interval between the stop block welded on the lower bottom surface of the first cross rod and the upright post.
The two ends of the second diagonal rod are respectively welded at the bottom surface of the left end of the first cross rod and the bottom end of the stop block, so that a second triangular supporting structure is formed among the first cross rod, the stop block and the second diagonal rod.
One end of the third inclined rod is welded at the right end part of the second cross rod, and the left ends of the second cross rod and the third inclined rod are welded on the same side surface of the upright post to form a third triangular supporting seat structure; one end of the enclosing purlin is welded on the top surface of the right end of the second cross rod.
The upper ring and the lower ring are respectively provided with screw holes on the side walls of the upper ring and the lower ring, and are fastened at the upper end of the upright post by bolts; the groove between the stop block and the upright post in the temporary bracket device is clamped on the wall of the steel casing; the structure is formed into the recyclable temporary bracket for installing the steel sheet pile cofferdam surrounding purlin.
The beneficial effects of the invention are as follows: the invention overcomes the defects of the prior art, after the drilling platform is dismantled, the position of the sliding block is determined according to the measurement result, the manufactured temporary bracket device is fixed on the steel casing through the clamping groove, and the enclosing purlin is installed. The device can accurately determine the size and elevation of the enclosing purlin, so as to determine the size and elevation of the steel cofferdam. After the steel cofferdam is folded, the fixed bracket is installed, the temporary bracket can be taken down after the fixed bracket is installed, and turnover use is carried out.
The device changes the conventional construction process of the steel sheet pile cofferdam, improves the construction precision, is convenient and quick to mount and dismount, can be repeatedly utilized, reduces the investment of manpower and machinery, ensures the engineering quality, improves the construction efficiency, and is beneficial to reducing the construction cost.
Drawings
The invention is further described below with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the structure of the present invention;
figure 2 is a schematic view of the installation of the present invention.
In the specification and the drawing, 1, upright posts, 2, upper rings, 3, lower rings, 4, first diagonal rods, 5, first transverse rods, 6, stop blocks, 7, second diagonal rods, 8, second transverse rods, 9, third diagonal rods, 10, graduated scales, 11, end baffles, 12, lifting holes, 13, fastening bolts, 14, enclosing purlins, 15 and steel protective cylinders are arranged.
Detailed Description
Referring to fig. 1 and 2, a recyclable temporary bracket for installing a steel sheet pile cofferdam purlin; a graduated scale 10 is arranged on the side surface of the upright post 1, so that zero graduation lines of the graduated scale 10 are flush with the upper edge of the second cross bar 8; the upper ring 2 and the lower ring 3 are respectively sleeved at the upper end of the upright post 1, a first cross rod 5 is welded on the side wall of the lower ring 3, two ends of a first diagonal rod 4 are respectively welded on the top surface of the left end of the first cross rod 5 and the side surface of the upper ring 2, so that a triangular bracket structure is formed among the first cross rod 5, the first diagonal rod 4, the upper ring 2 and the lower ring 3;
in the present embodiment, one end of the stopper 6 is welded to the lower bottom surface of the first cross bar 5, and a gap between the stopper 6 welded to the lower bottom surface of the first cross bar 5 and the column 1 forms a groove.
In this embodiment, two ends of the second diagonal member 7 are welded to the bottom surface of the left end of the first cross bar 5 and the bottom end of the stop block 6, respectively, so that a second triangular supporting structure is formed among the first cross bar 5, the stop block 6 and the second diagonal member 7.
In the embodiment, one end of a third inclined rod 9 is welded at the right end part of a second cross rod 8, and the left ends of the second cross rod 8 and the third inclined rod 9 are welded on the same side surface of the upright 1 to form a third triangular supporting seat structure; one end of the enclosing purlin 14 is welded to the top surface of the right end of the second cross bar 8.
In the present embodiment, screw holes are respectively formed in the side walls of the upper ring 2 and the lower ring 3, and bolts 13 are respectively installed in the screw holes; a baffle 11 with four lifting holes is welded at the top end of the upright column 1, and the four lifting holes 12 are used for field lifting operation;
the upper ring 2 and the lower ring 3 are arranged and fastened at the upper end of the upright post 1 by bolts 13, and a groove between a stop block 6 in the temporary bracket device and the upright post 1 is clamped on the wall of a steel protective cylinder 15; the structure is formed into the recyclable temporary bracket for installing the steel sheet pile cofferdam surrounding purlin.
In the present embodiment, the upper ring 2 and the lower ring 3 are square or rectangular, and are made of hollow square steel, respectively.
In this embodiment, the columns are made of 250mm by 16mm hollow square steel; square upper ring 2 and square lower ring 3 are respectively made of hollow square steel with 140mm multiplied by 12 mm; the first cross rod 5 and the stop block 6 are respectively manufactured by 14# I-steel; the second cross rod 8 is made of 25# I-steel, and the first inclined rod and the second inclined rod and the third inclined rod are made of 80mm multiplied by 8mm hollow square steel, so that the specification and the size of the manufacturing raw materials can be adjusted under the condition that the structural safety is not affected.
Principle of operation
After the drilling platform is dismantled, measuring and paying off are firstly carried out, and the elevation of the steel casing and the position and elevation of the temporary bracket on the steel casing are determined. According to the elevation of the hanging part and the height of the designed enclosing purlin, the height difference of the hanging part and the enclosing purlin is calculated, the position of the lower ring 3 on the upright post 1 is determined through the graduated scale 10, and then 6 fastening bolts 13 on the upper ring 2 and the lower ring 3 are screwed down to form a stable temporary bracket device structure.
During installation, the temporary bracket device is installed and fastened on the upright 1 by bolts 13; the hoisting steel wire rope is arranged on a hoisting hole 12 on the baffle plate 11, a hook on the crane steel wire rope is hung on the hoisting steel wire rope, and a clamping groove in a temporary bracket device on the baffle plate 11 is clamped on the steel casing 15; and checking the verticality of the temporary bracket device, fixing the device on the steel casing 15 by spot welding, and the like, and completing the installation of the rest temporary bracket devices. Through the measurement, the position of enclosing purlin is marked on the temporary bracket device, the enclosing purlin is hoisted in place and welded with the temporary bracket device, so that the stability of the structure is ensured.
And after the steel sheet pile cofferdam is folded, a temporary bracket device is welded and fixed on the steel sheet pile according to the requirement. After the temporary bracket fixing device is constructed, oxygen welding can be used to cut off the welding positions of the temporary bracket device and the steel casing. And finally, the temporary bracket device is dismantled by adopting a manual cooperation crane and is used on the next steel cofferdam.
Claims (2)
1. A recyclable temporary bracket for installing a steel sheet pile cofferdam enclosing purlin comprises a stand column, an upper ring, a lower ring, an inclined rod, a cross rod, a stop block, a graduated scale, a top plate, a lifting hole, a bolt and the enclosing purlin; the method is characterized in that: a graduated scale is arranged on the side surface of the upright post, so that zero graduation lines of the graduated scale are flush with the upper edge of the second cross rod, and a baffle plate with holes is arranged at the top end of the upright post; the upper ring and the lower ring are respectively arranged at the upper end of the upright post in a ring mode, a first cross rod is welded on the side wall of the lower ring, two ends of the first inclined rod are respectively welded on the top surface of the left end of the first cross rod and one side surface of the upper ring, and a triangular bracket structure is formed among the first cross rod, the first inclined rod, the upper ring and the lower ring; welding the upper end of the stop block on the lower bottom surface of the first cross rod, and forming a groove at the interval between the stop block and the upright post; two ends of the second diagonal rod are respectively welded at the bottom surface of the left end of the first cross rod and the bottom end of the stop block, so that a second triangular supporting structure is formed among the first cross rod, the stop block and the second diagonal rod; one end of the third inclined rod is welded at the right end part of the second cross rod, and the left ends of the second cross rod and the third inclined rod are welded on the same side surface of the upright post to form a third triangular supporting seat structure; one end of the enclosing purlin is welded on the top surface of the right end of the second cross rod; bolts are respectively arranged in screw holes on the side surfaces of the upper ring and the lower ring, the upper ring and the lower ring are fixedly arranged at the upper end of the upright post, and a groove between a stop block in the temporary bracket device and the upright post is clamped on the wall of the steel protective cylinder; the structure is formed into the recyclable temporary bracket for installing the steel sheet pile cofferdam surrounding purlin.
2. A recyclable temporary bracket for steel sheet pile cofferdam purlin installation as set forth in claim 1, wherein: the upper ring and the lower ring are respectively made of hollow square steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910714568.2A CN110318408B (en) | 2019-08-04 | 2019-08-04 | Recyclable temporary bracket for installing steel sheet pile cofferdam enclosing purlin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910714568.2A CN110318408B (en) | 2019-08-04 | 2019-08-04 | Recyclable temporary bracket for installing steel sheet pile cofferdam enclosing purlin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110318408A CN110318408A (en) | 2019-10-11 |
| CN110318408B true CN110318408B (en) | 2024-01-19 |
Family
ID=68125387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910714568.2A Active CN110318408B (en) | 2019-08-04 | 2019-08-04 | Recyclable temporary bracket for installing steel sheet pile cofferdam enclosing purlin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110318408B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980039B (en) * | 2020-06-18 | 2021-12-21 | 中铁十一局集团第一工程有限公司 | Construction method and structure of steel sheet pile cofferdam in tidal zone of sea area |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2519598A1 (en) * | 1982-01-11 | 1983-07-18 | Heuliez Carrosserie Sa Louis | Fixing for car body to chassis - has cross members and sub longitudinals on body with bolted clamps to retain to chassis |
| CN106948353A (en) * | 2017-05-03 | 2017-07-14 | 中交第二航务工程局有限公司 | A kind of deep water combined steel plate pile cofferdam construction method |
| CN210369003U (en) * | 2019-08-04 | 2020-04-21 | 中铁十一局集团第一工程有限公司 | Recyclable temporary bracket for mounting steel sheet pile cofferdam purlin |
-
2019
- 2019-08-04 CN CN201910714568.2A patent/CN110318408B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2519598A1 (en) * | 1982-01-11 | 1983-07-18 | Heuliez Carrosserie Sa Louis | Fixing for car body to chassis - has cross members and sub longitudinals on body with bolted clamps to retain to chassis |
| CN106948353A (en) * | 2017-05-03 | 2017-07-14 | 中交第二航务工程局有限公司 | A kind of deep water combined steel plate pile cofferdam construction method |
| CN210369003U (en) * | 2019-08-04 | 2020-04-21 | 中铁十一局集团第一工程有限公司 | Recyclable temporary bracket for mounting steel sheet pile cofferdam purlin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110318408A (en) | 2019-10-11 |
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