CN112813978A - Positioning and guiding device for lattice column and construction method thereof - Google Patents
Positioning and guiding device for lattice column and construction method thereof Download PDFInfo
- Publication number
- CN112813978A CN112813978A CN202011605566.9A CN202011605566A CN112813978A CN 112813978 A CN112813978 A CN 112813978A CN 202011605566 A CN202011605566 A CN 202011605566A CN 112813978 A CN112813978 A CN 112813978A
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- bolt
- pair
- limiting rod
- lattice column
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/04—Guide devices; Guide frames
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- Engineering & Computer Science (AREA)
- Structural Engineering (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)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a positioning and guiding device for a lattice column and a construction method thereof, wherein the positioning and guiding device comprises: the foundation frame is detachably fixed on the ground and surrounds the latticed column to be constructed; the pair of first limiting rods are arranged on two opposite sides of the lattice column to be constructed, and two opposite ends of each first limiting rod are arranged on the base frame in a sliding mode; the pair of second limiting rods is perpendicular to the first limiting rods, the pair of second limiting rods is arranged on the other two opposite sides of the lattice column to be constructed, and the two opposite ends of the second limiting rods are slidably arranged on the basic frame; the corresponding side surfaces of the lattice column are respectively attached by adjusting the first limiting rod and the second limiting rod, so that the lattice column is limited. The invention ensures the accurate positioning of the lattice column in the horizontal and vertical directions during the installation and prevents the self-deviation. First gag lever post and second gag lever post can the removal regulation, applicable in not unidimensional lattice column, and application scope is wide.
Description
Technical Field
The invention relates to the field of building construction, in particular to a positioning and guiding device for a lattice column and a construction method thereof.
Background
Currently, lattice columns generally comprise limbs arranged in a rectangular shape, and a gusset plate welded to two adjacent limbs at a spacing. In one embodiment, the lattice columns are arranged vertically and their bottoms are anchored in the cast-in-place piles.
In the prior art, theodolite and total station are mostly adopted to monitor plane point location, column body verticality, column top mark and the like in real time during lattice column construction. But because the section size of the lattice column head is smaller, the measurable surface of the limb end is smaller. When deviation of a latticed column body occurs, or pile top elevation is uneven, verticality deviation and the like need to be corrected, a total station cannot effectively identify a measurement tail end error.
When the latticed column shifts, rotates and inclines to easily cause the construction of an underground main body structure, the structural steel bars cannot smoothly pass through the latticed column and can only be welded with the latticed column, and the integrity of a local member is damaged.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a positioning and guiding device for a lattice column and a construction method thereof, and solves the problem that the lattice column deviates in the construction process in the prior art.
The technical scheme for realizing the purpose is as follows:
the invention provides a positioning and guiding device for a lattice column, comprising:
the foundation frame is detachably fixed on the ground and surrounds the latticed column to be constructed;
the pair of first limiting rods are arranged on two opposite sides of the lattice column to be constructed, and two opposite ends of each first limiting rod are arranged on the base frame in a sliding mode;
the pair of second limiting rods is perpendicular to the first limiting rods and arranged on the other two opposite sides of the latticed column to be constructed, and the two opposite ends of the second limiting rods are arranged on the base frame in a sliding mode; the first limiting rod and the second limiting rod are respectively attached to the corresponding side faces of the lattice column through adjustment, so that the lattice column is limited.
A further improvement of the positioning and guiding device for a lattice column according to the invention is that,
the top of the basic frame is provided with a first sliding chute and a second sliding chute which are vertical to each other;
a first bolt is inserted into the first sliding groove, a first nut of the first bolt is located in the base frame, the first bolt penetrates the first limiting rod upwards, the first limiting rod is adjusted by sliding the first bolt along the first sliding groove, and a first nut is screwed on the first bolt to fix the first limiting rod;
a second bolt is inserted into the second sliding groove, a second nut of the second bolt is located in the base frame, the second bolt penetrates through the second limiting rod upwards, the second limiting rod is adjusted by sliding the second bolt along the second sliding groove, and the second bolt is screwed to fix the second limiting rod through a second nut.
A further improvement of the positioning and guiding device for a lattice column according to the invention is that the base frame comprises:
a pair of first branch pipes arranged on the ground at two opposite sides of the lattice column to be constructed;
and the pair of second branch pipes are vertically fixed on the pair of first branch pipes and arranged at the other two opposite sides of the latticed column to be constructed.
A further improvement of the positioning and guiding device for a lattice column according to the invention is that,
the top of the first branch pipe is provided with the first sliding chute;
the top of the second branch pipe is provided with the second sliding chute.
A further improvement of the positioning and guiding device for a lattice column according to the invention is that,
the first branch pipe and the second branch pipe are both square steel pipes.
A further improvement of the positioning and guiding device for a lattice column according to the invention is that,
the first limiting rod and the second limiting rod are channel steel.
The invention also provides a construction method of the positioning and guiding device for the lattice column, which comprises the following steps:
providing a foundation frame, detachably fixing the foundation frame on the ground and enclosing the latticed column to be constructed;
providing a pair of first limiting rods, arranging the pair of first limiting rods on two opposite sides of the latticed column to be constructed, and slidably arranging two opposite ends of the first limiting rods on the basic frame;
providing a pair of second limiting rods, enabling the pair of second limiting rods to be perpendicular to the first limiting rods, enabling the pair of second limiting rods to be arranged on the other two opposite sides of the latticed column to be constructed, and enabling the two opposite ends of the second limiting rods to be arranged on the base frame in a sliding mode;
and adjusting the first limiting rod and the second limiting rod to be respectively attached to the corresponding side faces of the lattice column so as to limit the lattice column.
The construction method of the positioning and guiding device for the lattice column is further improved in that the method further comprises the following steps:
a first sliding groove and a second sliding groove which are vertical to each other are formed in the top of the base frame;
providing a first bolt, inserting the first bolt into the first sliding groove, positioning a first nut of the first bolt in the base frame, and penetrating the first bolt upwards through the first limiting rod;
the first bolt slides along the first sliding groove so as to adjust the first limiting rod, and is screwed on the first bolt through a first nut so as to fix the first limiting rod;
providing a second bolt, inserting the second bolt into the second sliding groove, positioning a second nut of the second bolt in the base frame, and penetrating the second bolt upwards through the second limiting rod;
and the second bolt slides along the second sliding groove so as to adjust the second limiting rod, and is screwed on the second bolt through a second nut so as to fix the second limiting rod.
In a further improvement of the construction method of the positioning and guiding device for lattice columns according to the present invention, the provision of the foundation frame comprises:
providing a pair of first branch pipes, and arranging the pair of first branch pipes on the ground on two opposite sides of the latticed column to be constructed;
and providing a pair of second branch pipes, vertically fixing the pair of second branch pipes on the pair of first branch pipes, and arranging the pair of second branch pipes on the other two opposite sides of the latticed column to be constructed.
The construction method of the positioning and guiding device for the lattice column is further improved in that the method further comprises the following steps:
the top of the first branch pipe is provided with the first chute;
and the top of the second branch pipe is provided with the second sliding chute.
The positioning and guiding device for the lattice column and the construction method thereof have the beneficial effects that:
according to the invention, the foundation frame is sleeved on the periphery of the lattice column to be constructed, the first limiting rod and the second limiting rod are slidably arranged on the foundation frame, and the first limiting rod and the second limiting rod are respectively attached to the corresponding side surfaces of the lattice column to limit according to the design requirement, so that the positioning accuracy of the lattice column in the horizontal and vertical directions during installation is ensured, and the self deviation is prevented. First gag lever post and second gag lever post can the removal regulation, applicable in not unidimensional lattice column, and application scope is wide.
Drawings
Fig. 1 is a front view of a positioning guide for a lattice column according to the present invention in a construction state.
Figure 2 is a side view of a positioning guide for a lattice column of the present invention.
Figure 3 is a top view of a positioning guide for a lattice column of the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, there is shown a front view of a positioning guide for a lattice column according to the present invention in a construction state. Figure 2 is a side view of a positioning guide for a lattice column of the present invention. Figure 3 is a top view of a positioning guide for a lattice column of the present invention. Referring to fig. 1 to 3, the positioning and guiding device for a lattice column of the present invention comprises:
a base frame 20 detachably fixed to the ground and surrounding the lattice column 10 to be constructed;
a pair of first limiting rods 30 arranged at two opposite sides of the lattice column 10 to be constructed, wherein two opposite ends of the first limiting rods 30 are slidably arranged on the base frame 20;
a pair of second limiting rods 40 perpendicular to the first limiting rods 30, wherein the pair of second limiting rods 40 are arranged on the other two opposite sides of the lattice column 10 to be constructed, and the two opposite ends of the second limiting rods 40 are slidably arranged on the base frame 20; the first limiting rod 30 and the second limiting rod 40 are respectively attached to the corresponding side faces of the lattice column 10 through adjustment, so that the lattice column 10 is limited.
In the present embodiment, the lattice column 10 has a rectangular parallelepiped strip-like structure. Correspondingly, the base frame 20 is a rectangular frame with a large size. The first stopper rod 30 and the second stopper rod 40 form a # -shaped structure, and a rectangular frame adapted to the lattice column 10 is formed in the middle thereof.
The lattice column 10 includes limbs 11 arranged in a rectangular shape, and a gusset plate 12 welded to adjacent two limbs 11 at a spacing. The lattice columns 10 are arranged vertically and their bottoms are anchored in the cast-in-place piles 50. A fixed base frame 20 is installed on the ground at the top of the cast-in-place pile 50. The pair of first limiting rods 30 and the pair of second limiting rods 40 are arranged on the base frame 20 in a sliding mode, the rectangular frame formed by the pair of first limiting rods 30 and the pair of second limiting rods 40 in an enclosing mode is movably adjusted to be sleeved on the lattice column 10, the side face of the lattice column 10 is limited, and the influence on construction quality due to the fact that the side face of the lattice column 10 is inclined is avoided.
Further, a backing plate 80 is attached to the ground at the top of the cast-in-place pile 50, and the foundation frame 20 is fixed to the backing plate 80 for installation and fixation.
As a preferred embodiment of the positioning and guiding device for lattice columns of the present invention, the top of the base frame 20 is provided with a first sliding chute and a second sliding chute which are perpendicular to each other; a first bolt 60 is inserted into the first sliding groove, a first nut of the first bolt 60 is located in the base frame 20, the first bolt 60 penetrates the first limiting rod 30 upwards, the first limiting rod 30 is adjusted by sliding the first bolt 60 along the first sliding groove, and the first bolt 60 is screwed to the first nut 61 to fix the first limiting rod 30; a second bolt 70 is inserted into the second sliding groove, a second nut of the second bolt 70 is located in the base frame 20, the second bolt 70 upwardly penetrates through the second limiting rod 40, the second limiting rod 40 is adjusted by sliding the second bolt 70 along the second sliding groove, and the second bolt 70 is screwed with the second nut 71 to fix the second limiting rod 40.
Furthermore, circular through holes are formed at two ends of the first sliding groove, so that the first bolt is convenient to mount and limit. Circular through holes are formed at two ends of the second sliding groove, so that the second bolt is convenient to mount and limit.
As a preferred embodiment of the positioning and guiding device for the lattice column of the present invention, the base frame 20 includes: a pair of first branch pipes 21 provided on the ground on opposite sides of the lattice column 10 to be constructed; a pair of second branch pipes 22 vertically fixed to the pair of first branch pipes 21, the pair of second branch pipes 22 being provided at the other opposite sides of the lattice column 10 to be constructed.
As a preferred embodiment of the positioning and guiding device for lattice columns of the present invention, the top of the first branch pipe 21 is provided with a first sliding chute; the top of the second branch pipe 22 is opened with a second chute.
Specifically, the second branch pipe 22 is vertically arranged on the top of the first branch pipe 21, the first limiting rod 30 is vertically arranged on the pair of first branch pipes 21, and two ends of the first limiting rod 30 are slidably arranged in the first sliding groove through the first bolt 60; the second limiting rod 40 is vertically arranged on the pair of second branch pipes 22, and two ends of the second limiting rod 40 are slidably arranged in the second sliding grooves through second bolts 70. The second branch pipe 22, the first branch pipe 21, the first limiting rod 30 and the second limiting rod 40 are arranged in a vertically staggered manner, and cover the side face of the lattice column 10 in the height direction of the lattice column 10 to limit the lattice column 10, so that the lattice column 10 is prevented from inclining.
As a preferred embodiment of the positioning and guiding device for lattice columns of the present invention, the first branch pipe 21 and the second branch pipe 22 are both square steel pipes with hollow interiors. A first sliding groove is formed in the top of the square steel pipe, a first bolt 60 is inserted into the first sliding groove, and a nut of the first bolt 60 is arranged inside the square steel pipe and abuts against top plates on two sides of the first sliding groove of the square steel pipe to prevent falling off.
In this embodiment, the first and second position-limiting rods 30 and 40 are both channel steel.
The invention also provides a construction method of the positioning and guiding device for the lattice column, which comprises the following steps:
providing a foundation frame 20, fixing the foundation frame 20 on the ground in a detachable mode, and enclosing the latticed column 10 to be constructed;
providing a pair of first limiting rods 30, arranging the pair of first limiting rods 30 at two opposite sides of the lattice column 10 to be constructed, and slidably arranging two opposite ends of the first limiting rods 30 on the base frame 20;
providing a pair of second limiting rods 40, enabling the pair of second limiting rods 40 to be perpendicular to the first limiting rods 30, enabling the pair of second limiting rods 40 to be arranged on the other two opposite sides of the latticed column 10 to be constructed, and enabling the two opposite ends of the second limiting rods 40 to be arranged on the base frame 20 in a sliding mode;
the first limiting rod 30 and the second limiting rod 40 are adjusted to be respectively attached to the corresponding side faces of the lattice column 10, so that the lattice column 10 is limited.
As a preferred embodiment of the positioning and guiding device for lattice column of the present invention, further comprising: a first sliding chute and a second sliding chute which are vertical to each other are arranged at the top of the base frame 20; providing a first bolt 60, inserting the first bolt 60 into the first sliding groove, positioning a first nut of the first bolt 60 in the base frame 20, and inserting the first bolt 60 upwards through the first limiting rod 30; sliding the first bolt 60 along the first sliding groove to adjust the first limit rod 30, and screwing the first bolt with a first nut to fix the first limit rod; providing a second bolt 70, inserting the second bolt 70 into the second sliding groove, positioning a second nut of the second bolt in the base frame 20, and penetrating the second bolt 70 upwards through the second limiting rod; the second bolt 70 is slid along the second sliding groove to adjust the second stopper rod 40, and is screwed to the second bolt through the second nut to fix the second stopper rod 40.
As a preferred embodiment of the construction method of the positioning and guiding device for lattice columns of the present invention, the providing of the foundation frame 20 includes: providing a pair of first branch pipes 21, and arranging the pair of first branch pipes 21 on the ground on two opposite sides of the lattice column 10 to be constructed; a pair of second branch pipes 22 are provided, the pair of second branch pipes 22 are vertically fixed to the pair of first branch pipes 21, and the pair of second branch pipes 22 are provided on the other opposite sides of the lattice column 10 to be constructed.
As a preferred embodiment of the construction method of the positioning and guiding device for lattice columns of the present invention, the method further comprises: a first chute is arranged at the top of the first branch pipe 21; a second chute is provided at the top of the second branch pipe 22.
The positioning and guiding device for the lattice column and the construction method thereof have the beneficial effects that:
according to the invention, the foundation frame is sleeved on the periphery of the lattice column to be constructed, the first limiting rod and the second limiting rod are slidably arranged on the foundation frame, and the first limiting rod and the second limiting rod are respectively attached to the corresponding side surfaces of the lattice column to limit according to the design requirement, so that the positioning accuracy of the lattice column in the horizontal and vertical directions during installation is ensured, and the self deviation is prevented. First gag lever post and second gag lever post can the removal regulation, applicable in not unidimensional lattice column, and application scope is wide.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
1. A positioning guide for a lattice column, comprising:
the foundation frame is detachably fixed on the ground and surrounds the latticed column to be constructed;
the pair of first limiting rods are arranged on two opposite sides of the lattice column to be constructed, and two opposite ends of each first limiting rod are arranged on the base frame in a sliding mode;
the pair of second limiting rods is perpendicular to the first limiting rods and arranged on the other two opposite sides of the latticed column to be constructed, and the two opposite ends of the second limiting rods are arranged on the base frame in a sliding mode; the first limiting rod and the second limiting rod are respectively attached to the corresponding side faces of the lattice column through adjustment, so that the lattice column is limited.
2. Positioning guide for lattice columns as claimed in claim 1,
the top of the basic frame is provided with a first sliding chute and a second sliding chute which are vertical to each other;
a first bolt is inserted into the first sliding groove, a first nut of the first bolt is located in the base frame, the first bolt penetrates the first limiting rod upwards, the first limiting rod is adjusted by sliding the first bolt along the first sliding groove, and a first nut is screwed on the first bolt to fix the first limiting rod;
a second bolt is inserted into the second sliding groove, a second nut of the second bolt is located in the base frame, the second bolt penetrates through the second limiting rod upwards, the second limiting rod is adjusted by sliding the second bolt along the second sliding groove, and the second bolt is screwed to fix the second limiting rod through a second nut.
3. A positioning guide for a lattice column as claimed in claim 2, wherein said base frame comprises:
a pair of first branch pipes arranged on the ground at two opposite sides of the lattice column to be constructed;
and the pair of second branch pipes are vertically fixed on the pair of first branch pipes and arranged at the other two opposite sides of the latticed column to be constructed.
4. A positioning guide for a lattice column as claimed in claim 3,
the top of the first branch pipe is provided with the first sliding chute;
the top of the second branch pipe is provided with the second sliding chute.
5. A positioning guide for a lattice column as claimed in claim 3,
the first branch pipe and the second branch pipe are both square steel pipes.
6. Positioning guide for lattice columns as claimed in claim 1,
the first limiting rod and the second limiting rod are channel steel.
7. A construction method of a positioning and guiding device for a lattice column is characterized by comprising the following steps:
providing a foundation frame, detachably fixing the foundation frame on the ground and enclosing the latticed column to be constructed;
providing a pair of first limiting rods, arranging the pair of first limiting rods on two opposite sides of the latticed column to be constructed, and slidably arranging two opposite ends of the first limiting rods on the basic frame;
providing a pair of second limiting rods, enabling the pair of second limiting rods to be perpendicular to the first limiting rods, enabling the pair of second limiting rods to be arranged on the other two opposite sides of the latticed column to be constructed, and enabling the two opposite ends of the second limiting rods to be arranged on the base frame in a sliding mode;
and adjusting the first limiting rod and the second limiting rod to be respectively attached to the corresponding side faces of the lattice column so as to limit the lattice column.
8. A method of constructing a positioning guide for a lattice column as claimed in claim 7, further comprising:
a first sliding groove and a second sliding groove which are vertical to each other are formed in the top of the base frame;
providing a first bolt, inserting the first bolt into the first sliding groove, positioning a first nut of the first bolt in the base frame, and penetrating the first bolt upwards through the first limiting rod;
the first bolt slides along the first sliding groove so as to adjust the first limiting rod, and is screwed on the first bolt through a first nut so as to fix the first limiting rod;
providing a second bolt, inserting the second bolt into the second sliding groove, positioning a second nut of the second bolt in the base frame, and penetrating the second bolt upwards through the second limiting rod;
and the second bolt slides along the second sliding groove so as to adjust the second limiting rod, and is screwed on the second bolt through a second nut so as to fix the second limiting rod.
9. A method of constructing a positioning guide for a lattice column as defined in claim 8 wherein providing said base frame comprises:
providing a pair of first branch pipes, and arranging the pair of first branch pipes on the ground on two opposite sides of the latticed column to be constructed;
and providing a pair of second branch pipes, vertically fixing the pair of second branch pipes on the pair of first branch pipes, and arranging the pair of second branch pipes on the other two opposite sides of the latticed column to be constructed.
10. A method of constructing a positioning guide for a lattice column as defined in claim 9, further comprising:
the top of the first branch pipe is provided with the first chute;
and the top of the second branch pipe is provided with the second sliding chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011605566.9A CN112813978A (en) | 2020-12-30 | 2020-12-30 | Positioning and guiding device for lattice column and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011605566.9A CN112813978A (en) | 2020-12-30 | 2020-12-30 | Positioning and guiding device for lattice column and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112813978A true CN112813978A (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011605566.9A Pending CN112813978A (en) | 2020-12-30 | 2020-12-30 | Positioning and guiding device for lattice column and construction method thereof |
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| Country | Link |
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| CN (1) | CN112813978A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481861A (en) * | 2021-07-21 | 2021-10-08 | 中铁七局集团有限公司 | Centering support for assisting installation and positioning of steel pipe column |
| CN115492403A (en) * | 2022-10-09 | 2022-12-20 | 浙江省一建建设集团有限公司 | Combined type precise positioning construction device for tower footing steel latticed column |
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| CN101235646A (en) * | 2007-02-01 | 2008-08-06 | 张忠志 | Building slope ecological supporting technique |
| CN102888865A (en) * | 2012-05-29 | 2013-01-23 | 中国建筑第四工程局有限公司 | Method and device for correcting perpendicularity of steel structural member in process of constructing vertical column pile |
| CN207405625U (en) * | 2017-11-10 | 2018-05-25 | 中铁五局集团有限公司 | Steel reinforcement cage and lattice column positioning device |
| CN110685277A (en) * | 2019-09-27 | 2020-01-14 | 中铁九桥工程有限公司 | Guide positioning device and method for permanent steel casing of large onshore pile foundation |
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2020
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235646A (en) * | 2007-02-01 | 2008-08-06 | 张忠志 | Building slope ecological supporting technique |
| CN102888865A (en) * | 2012-05-29 | 2013-01-23 | 中国建筑第四工程局有限公司 | Method and device for correcting perpendicularity of steel structural member in process of constructing vertical column pile |
| CN207405625U (en) * | 2017-11-10 | 2018-05-25 | 中铁五局集团有限公司 | Steel reinforcement cage and lattice column positioning device |
| CN110685277A (en) * | 2019-09-27 | 2020-01-14 | 中铁九桥工程有限公司 | Guide positioning device and method for permanent steel casing of large onshore pile foundation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481861A (en) * | 2021-07-21 | 2021-10-08 | 中铁七局集团有限公司 | Centering support for assisting installation and positioning of steel pipe column |
| CN113481861B (en) * | 2021-07-21 | 2022-09-02 | 中铁七局集团有限公司 | Centering support for assisting installation and positioning of steel pipe column |
| CN115492403A (en) * | 2022-10-09 | 2022-12-20 | 浙江省一建建设集团有限公司 | Combined type precise positioning construction device for tower footing steel latticed column |
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Application publication date: 20210518 |