CN110295761A - A kind of adjusting verticality of steel column monitoring device and vertical adjustment monitoring method - Google Patents
A kind of adjusting verticality of steel column monitoring device and vertical adjustment monitoring method Download PDFInfo
- Publication number
- CN110295761A CN110295761A CN201910592856.5A CN201910592856A CN110295761A CN 110295761 A CN110295761 A CN 110295761A CN 201910592856 A CN201910592856 A CN 201910592856A CN 110295761 A CN110295761 A CN 110295761A
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- steel column
- vertical adjustment
- steel
- electrolevel
- plate
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 136
- 239000010959 steel Substances 0.000 title claims abstract description 136
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000012806 monitoring device Methods 0.000 title claims abstract description 16
- 238000012544 monitoring process Methods 0.000 title claims description 11
- 239000011521 glass Substances 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 4
- 230000010412 perfusion Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/12—Instruments for setting out fixed angles, e.g. right angles
Abstract
The invention discloses a kind of adjusting verticality of steel column monitoring devices, including jack, horizontally disposed straightening frame and vertical steel column；It is characterized in that, further including the first electrolevel, vertical adjustment disk and organic glass light target；The straightening frame is rectangular or square frame structure, there are four the jack is set, and respectively correspond four corners being mounted below straightening frame, the steel column is located at straightening frame center, steel column upper end is fixedly connected with straightening frame, the organic glass light target is horizontally arranged at steel column bottom, the organic glass light target center of circle is located on the axis of steel column, the vertical adjustment disk is mounted on steel column inner upper end, vertical adjustment disk is equipped with laser vertical adjustment instrument, the laser face organic glass light target center of circle of the laser vertical adjustment instrument, first electrolevel is fixedly mounted on vertical adjustment disk.The present invention meets inverse method one-column one-pile technique and the pile foundation construction relatively high to degree control requirement, and control precision is high, good economy performance, and easily operated.
Description
Technical field
The present invention relates to engineering construction pile foundation technical field of construction, and in particular in a kind of construction of one pile for one column vertical adjustment
Adjusting verticality of steel column monitoring device and vertical adjustment monitoring method.
Background technique
Contrary sequence method starts from the beginning of the nineties in last century, and the development in more than 20 years of process has gradually formed and has been different from tradition along workmanship
The independent system of skill.Steel column is inserted into the contrary sequence method vertical support system of pile foundation, is the key that during the inverse work of foundation pit is implemented.As
The inverse core component made in system, the vertical precision of vertical support pile require to be to ensure that the inverse core for making construction quality, safety
Element.Therefore, the vertical adjustment technology for grasping vertical support pile is comprehensive first step for grasping Top-down Construction Technique, and is most closed
One step of key.Vertical supporting column vertical adjustment equipment and deviation correcting technology are broadly divided into three kinds, i.e. air-bag method vertical adjustment in foundation pit construction at present
System, straightening frame method verticality-regulating system and hydraulic vertical adjustment disk method verticality-regulating system；But their vertical adjustment processes in foundation pit construction are relatively multiple
It is miscellaneous, and it is relatively complicated to construct, it is expensive.
Summary of the invention
Adjusting verticality of steel column process is complicated in one pile for one column vertical adjustment construction in order to solve the prior art, cumbersome, price of constructing
Expensive technical problem, the present invention provide a kind of adjusting verticality of steel column monitoring device.
In order to reach above-mentioned technical effect, the technical solution adopted by the present invention is that:
A kind of adjusting verticality of steel column monitoring device, including jack, horizontally disposed straightening frame and vertical steel column；It is special
Sign is, further includes the first electrolevel, vertical adjustment disk and organic glass light target；The straightening frame is rectangular or square frame knot
Structure there are four the jack is set, and respectively corresponds four corners being mounted below straightening frame, and the steel column is located at straightening
Frame center, steel column upper end are fixedly connected with straightening frame, and the organic glass light target is horizontally arranged at steel column bottom, organic glass
The glass light target center of circle is located on the axis of steel column, and the vertical adjustment disk is mounted on steel column inner upper end, and vertical adjustment disk is equipped with laser tune
Hang down instrument, the laser face organic glass light target center of circle of the laser vertical adjustment instrument, and first electrolevel is fixedly mounted on tune
It hangs down on disk.
Further, the straightening frame is respectively provided with a crossbeam at left and right sides of steel column, and two crossbeams are symmetrical about steel column,
Fixed frame is symmetrically arranged on the outer wall of steel column upper end two sides, steel column connects by the way that fixed frame and crossbeam and straightening frame are fixed
It connects.
Further, steel column inner wall upper end is uniformly distributed with four angle steel along the circumference, and the vertical adjustment disk is fixedly mounted on
On angle steel.
Further, the angle steel is 30cm apart from steel column top surface.
Further, the vertical adjustment disk is additionally provided with cross steel plate and square plate, and the square plate is located at cross steel plate
Lower section, the alignment of the two center, and be fixedly connected by reinforcing bar connection frame, center is located on the axis of steel column, square plate
Center is equipped with perforation；The laser vertical adjustment instrument is between square plate and cross steel plate, the laser vertical adjustment instrument side of being fixedly mounted on
Four ends at shape steel plate center, the cross steel plate are fixedly connected by bolt with angle steel, first electrolevel with
Cross steel plate is fixedly connected.
Further, first electrolevel is set between laser vertical adjustment instrument and cross steel plate.
Further, be equipped at the top of the steel column with steel column axis vertical-horizontal steel plate, pacify on the horizontal steel plate
Equipped with the second electrolevel.
A kind of adjusting verticality of steel column monitoring method, which comprises the following steps:
S1. steel column entry test；
S2., organic glass light rake, vertical adjustment disk and the first electrolevel are installed；
S3. it transfers and fixes steel column；
S4. adjusting verticality of steel column；
S5., second electrolevel is installed；
S6. concrete perfusion and real-time monitoring adjustment.
Compared with prior art, the beneficial effects of the present invention are:
1, adjusting verticality of steel column is carried out using laser plummet, electrolevel and straightening frame, realizes adjusting verticality of steel column technique
Simplify, easily operated and popularization.
2, only electrolevel price is higher in the device, remaining accessory is relatively inexpensive, and overall price is lower, has
Higher economic value.
3, the device can avoid artificial degree error using electrolevel degree, while sustainable display verticality is gone forward side by side
Row vertical adjustment can meet requirement of the one pile for one column to verticality.
4, higher, the cumbersome status of current one pile for one column operating expenses is changed, can be one pile for one column construction technology
Popularization lay the foundation.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, the present invention is described in further details with reference to the accompanying drawings and examples, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.
Detailed description of the invention
Fig. 1 is adjusting verticality of steel column monitoring device structural schematic diagram of the present invention.
Fig. 2 is adjusting verticality of steel column monitoring device top view of the present invention.
Fig. 3 is the position the A enlarged view of Fig. 1.
Fig. 4 is adjusting verticality of steel column monitoring method flow chart of the present invention.
Each label and corresponding title in figure are as follows:
10. jack, 20. straightening frames, 21. crossbeams, 211. connection sheets,
212. connecting plates, 22. support plates, 30. steel columns, 31. fixed frames,
32. angle steel, 33. horizontal steel plates, 40. vertical adjustment disks, 41. laser vertical adjustment instrument,
42. cross steel plate, 43. square plates, 44. reinforcing bar connection frames,
50. organic glass light target, 60. first electrolevels, 70. second electrolevels.
Specific embodiment
As shown in Figure 1-3, a kind of adjusting verticality of steel column monitoring device, including it is jack 10, horizontally disposed straightening frame 20, perpendicular
Straight steel column 30, the first electrolevel 60, vertical adjustment disk 40 and organic glass light target 50.Straightening frame 20 is rectangular or square frame
Frame structure, steel column 30 are located at 20 center of straightening frame, and straightening frame 20 is respectively provided with a crossbeam 21 at left and right sides of steel column 30, and two is horizontal
Beam 21 is symmetrical about steel column 30, and fixed frame 31 is symmetrically arranged on the outer wall of 30 upper end two sides of steel column, and steel column 30 passes through solid
The connecting plate 212 determined on frame 31 and crossbeam 21 is fixedly connected with crossbeam 21.Preferably, versatility and side convenient for straightening frame 20
The controllability of two crossbeam of edge, 21 spacing, two girder inside lower ends on 20 front-rear direction of straightening frame are equipped with support plate 22, horizontal
Rectangular-shaped connection sheet 211 is welded on the side wall at 21 both ends of beam, the horizontal ends of connection sheet 211 are equipped with perforation, crossbeam 21
The horizontal ends of both ends and connection sheet 211 are overlapped in support plate 22, and support plate 22 is equipped with strip groove below the perforation of connection sheet 211
Hole, crossbeam 21 are fixedly connected by the bolt of connection sheet 211 and 22 slot of perforation and support plate across angle with straightening frame 20.Thousand
There are four jin top 10 is set, and respectively correspond four corners for being mounted on 20 lower section of straightening frame.Organic glass light target 50 is horizontally mounted
In 30 bottom of steel column, 50 center of circle of organic glass light target is located on the axis of steel column 30.30 inner wall upper end of steel column is circumferentially
Angle steel 32 there are four uniformly distributed, angle steel 32 are 30cm apart from 30 top surface of steel column.Vertical adjustment disk 40 is mounted on 30 inner upper end of steel column,
Vertical adjustment disk 40 is equipped with laser vertical adjustment instrument 41, horizontally disposed cross steel plate 42 and square plate 43.Square plate 43 is located at cross
42 lower section of steel plate, the two are bolted by reinforcing bar connection frame 44, wherein 44 one end of reinforcing bar connection frame and cross steel plate 42 weld
It connects, 44 other end of reinforcing bar connection frame sets external screw thread and nut, aperture on 43 corresponding position of square plate, and reinforcing bar connection frame 44 is equipped with
Externally threaded one end is threaded through square plate 43 and perforates interior and be fixedly connected by nut with square plate 43.Square plate 43 with
The alignment of 42 center of cross steel plate, and center is located on the axis of steel column 30,43 center of square plate is equipped with perforation.Laser vertical adjustment
Between square plate 43 and cross steel plate 42, laser vertical adjustment instrument 41 is fixedly mounted on square plate 43 instrument 41, and adjustment swashs
The horizontal plate of optical collimator is directed at the laser of laser vertical adjustment instrument 41 in organic glass light rake by the perforation of square plate 43
Four ends of the heart, cross steel plate 42 are fixedly connected by bolt with four angle steel 32.First electrolevel 60 is set to laser
Between vertical adjustment instrument 41 and cross steel plate 42, and it is fixedly connected by bolt with cross steel plate 42, the reading of the first electrolevel 60
Aobvious area is located between the adjacent both ends portion of cross steel plate 42, and the first electronic horizon can be directly observed above cross steel plate 42
The area Du Xian of instrument 60.Be equipped at the top of steel column 30 with 30 axis vertical-horizontal steel plate 33 of steel column, be equipped on horizontal steel plate 33
Second electrolevel 70.
As shown in figure 4, a kind of adjusting verticality of steel column monitoring method, comprising the following steps:
S1. steel column entry test: to the hole for hoist of steel column, the fixed angle steel of slurry hole, fixation hole, cross steel plate is returned
It tests position.
S2., organic glass light rake, vertical adjustment disk and the first electrolevel are installed: on the steel column for reaching requirement after being checked
Organic glass light rake, vertical adjustment disk and the first electrolevel are installed, adjusting laser plummet makes plumb aligner horizontal plate and steel column
Axis is vertical, and the organic glass light of laser plummet laser alignment at this time harrows center.
S3. it transfers and fixes steel column: decentralization steel column, and steel column and straightening frame are fixed.
S4. adjusting verticality of steel column: adjusting straightening frame using jack makes the first electrolevel degree 0.
S5., second electrolevel is installed: the second electrolevel being installed in steel column top outer, guarantees that its degree is
0, while removing vertical adjustment disk.
S6. vertical adjustment monitors: concrete perfusion, the degree variation of the second electrolevel of real-time monitoring, and passes through jack
Adjusting straightening frame makes steel column keep vertical.
The present invention ensure that hanging down for vertical supporting structure by the real-time monitoring adjustment after vertical adjustment twice and primary conversion
Straight degree can meet inverse method one-column one-pile technique and the pile foundation construction relatively high to degree control requirement, and device letter
Single, good economy performance is easily operated, and degree control precision is high.
The present invention is not limited to above-mentioned specific embodiment, for those of ordinary skill in the art from above-mentioned structure
Think of sets out, and without creative labor, made various transformation are within the scope of the present invention.
Claims (8)
1. a kind of adjusting verticality of steel column monitoring device, including jack, horizontally disposed straightening frame and vertical steel column；Its feature
It is, further includes the first electrolevel, vertical adjustment disk and organic glass light target；The straightening frame is rectangular or square frame knot
Structure there are four the jack is set, and respectively corresponds four corners being mounted below straightening frame, and the steel column is located at straightening
Frame center, steel column upper end are fixedly connected with straightening frame, and the organic glass light target is horizontally arranged at steel column bottom, organic glass
The glass light target center of circle is located on the axis of steel column, and the vertical adjustment disk is mounted on steel column inner upper end, and vertical adjustment disk is equipped with laser tune
Hang down instrument, the laser face organic glass light target center of circle of the laser vertical adjustment instrument, and first electrolevel is fixedly mounted on tune
It hangs down on disk.
2. a kind of adjusting verticality of steel column monitoring device according to claim 1, which is characterized in that the straightening frame is in steel column
The left and right sides is respectively provided with a crossbeam, and two crossbeams are symmetrical about steel column, is symmetrically arranged on the outer wall of steel column upper end two sides
Fixed frame, steel column are fixedly connected by fixed frame and crossbeam with straightening frame.
3. a kind of adjusting verticality of steel column monitoring device according to claim 1, which is characterized in that steel column inner wall upper end
It is uniformly distributed with four angle steel along the circumference, the vertical adjustment disk is fixedly mounted on angle steel.
4. a kind of adjusting verticality of steel column monitoring device according to claim 3, which is characterized in that the angle steel is apart from steel column
Top surface is 30cm.
5. a kind of adjusting verticality of steel column monitoring device according to claim 3, which is characterized in that the vertical adjustment disk is additionally provided with ten
Word steel plate and square plate, the square plate are located at below cross steel plate, the alignment of the two center, and solid by reinforcing bar connection frame
Fixed connection, center are located on the axis of steel column, and square plate center is equipped with perforation；The laser vertical adjustment instrument is located at square bar
Between plate and cross steel plate, laser vertical adjustment instrument is fixedly mounted on square plate center, and four ends of the cross steel plate pass through
Bolt is fixedly connected with angle steel, and first electrolevel is fixedly connected with cross steel plate.
6. a kind of adjusting verticality of steel column monitoring device according to claim 5, which is characterized in that first electrolevel
Between laser vertical adjustment instrument and cross steel plate.
7. a kind of adjusting verticality of steel column monitoring device according to claim 1, which is characterized in that be equipped at the top of the steel column
With steel column axis vertical-horizontal steel plate, the second electrolevel is installed on the horizontal steel plate.
8. a kind of adjusting verticality of steel column monitoring method, which comprises the following steps:
S1. steel column entry test；
S2., organic glass light rake, vertical adjustment disk and the first electrolevel are installed；
S3. it transfers and fixes steel column；
S4. adjusting verticality of steel column；
S5., second electrolevel is installed；
S6. concrete perfusion and real-time monitoring adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910592856.5A CN110295761B (en) | 2019-07-03 | 2019-07-03 | Steel upright post sagging adjustment monitoring device and sagging adjustment monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910592856.5A CN110295761B (en) | 2019-07-03 | 2019-07-03 | Steel upright post sagging adjustment monitoring device and sagging adjustment monitoring method |
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| Publication Number | Publication Date |
|---|---|
| CN110295761A true CN110295761A (en) | 2019-10-01 |
| CN110295761B CN110295761B (en) | 2024-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910592856.5A Active CN110295761B (en) | 2019-07-03 | 2019-07-03 | Steel upright post sagging adjustment monitoring device and sagging adjustment monitoring method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395770A (en) * | 2020-03-12 | 2020-07-10 | 中国一冶集团有限公司 | Steel column installation error adjusting device and method |
| CN112921814A (en) * | 2021-01-26 | 2021-06-08 | 由旭伟 | Pier convenient to rectify and consolidate in public road bridge roof beam construction |
| CN115110528A (en) * | 2022-05-23 | 2022-09-27 | 中建八局发展建设有限公司 | Real-time monitoring system and method for adjusting verticality of pile foundation steel stand column |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11247108A (en) * | 1998-02-27 | 1999-09-14 | Yuupasu:Kk | Track displacement measuring system |
| KR20060100532A (en) * | 2005-03-17 | 2006-09-21 | 삼성물산 주식회사 | Verticality adjusting device for substructural column and installing method of substructural column using the same |
| CN104499485A (en) * | 2014-12-08 | 2015-04-08 | 上海建工集团股份有限公司 | One-column one-pile full-automatic hydraulic verticality adjusting system and method |
| CN109610441A (en) * | 2018-11-23 | 2019-04-12 | 中天建设集团有限公司 | It is a kind of to use hydraulic vertical adjustment frame inverse method one-column one-pile construction method |
| CN210483097U (en) * | 2019-07-03 | 2020-05-08 | 中亿丰建设集团股份有限公司 | Steel stand transfers monitoring device that hangs down |
-
2019
- 2019-07-03 CN CN201910592856.5A patent/CN110295761B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11247108A (en) * | 1998-02-27 | 1999-09-14 | Yuupasu:Kk | Track displacement measuring system |
| KR20060100532A (en) * | 2005-03-17 | 2006-09-21 | 삼성물산 주식회사 | Verticality adjusting device for substructural column and installing method of substructural column using the same |
| CN104499485A (en) * | 2014-12-08 | 2015-04-08 | 上海建工集团股份有限公司 | One-column one-pile full-automatic hydraulic verticality adjusting system and method |
| CN109610441A (en) * | 2018-11-23 | 2019-04-12 | 中天建设集团有限公司 | It is a kind of to use hydraulic vertical adjustment frame inverse method one-column one-pile construction method |
| CN210483097U (en) * | 2019-07-03 | 2020-05-08 | 中亿丰建设集团股份有限公司 | Steel stand transfers monitoring device that hangs down |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395770A (en) * | 2020-03-12 | 2020-07-10 | 中国一冶集团有限公司 | Steel column installation error adjusting device and method |
| CN111395770B (en) * | 2020-03-12 | 2021-10-01 | 中国一冶集团有限公司 | Steel column installation error adjusting device and method |
| CN112921814A (en) * | 2021-01-26 | 2021-06-08 | 由旭伟 | Pier convenient to rectify and consolidate in public road bridge roof beam construction |
| CN115110528A (en) * | 2022-05-23 | 2022-09-27 | 中建八局发展建设有限公司 | Real-time monitoring system and method for adjusting verticality of pile foundation steel stand column |
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| CN110295761B (en) | 2024-01-19 |
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