CN110258534B - Device and method for guaranteeing vertical hoisting of diaphragm wall reinforcement cage - Google Patents
Device and method for guaranteeing vertical hoisting of diaphragm wall reinforcement cage Download PDFInfo
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- CN110258534B CN110258534B CN201910520634.2A CN201910520634A CN110258534B CN 110258534 B CN110258534 B CN 110258534B CN 201910520634 A CN201910520634 A CN 201910520634A CN 110258534 B CN110258534 B CN 110258534B
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- steel
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- pulley
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 106
- 239000010959 steel Substances 0.000 claims abstract description 106
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
-
- 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
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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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 discloses a device and a method for ensuring vertical hoisting of a diaphragm wall reinforcement cage, wherein the device comprises the following steps: a first fixing plate vertically disposed; the two groups of connecting pipes are symmetrically arranged on the first fixing plate, and each connecting pipe is perpendicular to the plane where the first fixing plate is positioned; a pulley is arranged at one end of each connecting pipe far away from the first fixing plate, and the outer side of each pulley exceeds the first fixing plate; the bottom of the first fixing plate is fixedly connected with a second fixing plate which is horizontally arranged; in the hoisting process, the outer sides of all pulleys are contacted with the corresponding flanges of the I-steel. The invention can ensure that the steel reinforcement cage is vertical and stable in the descending process, and does not generate wall collision; through fixing the device position in advance, guarantee that the central point of steel reinforcement cage thickness direction puts accurately, make the hanging process more accurate.
Description
Technical Field
The invention relates to the field of building construction methods and device design, in particular to a device and a method for guaranteeing vertical hanging of a reinforcement cage of a diaphragm wall.
Background
The underground diaphragm wall is widely used as an enclosure structure with high rigidity and good anti-seepage effect when a foundation pit is excavated, and has a plurality of advantages, but the problem that the perpendicularity of the reinforcement cage is difficult to control and unstable in the hoisting process is solved, and the reinforcement cage is easy to collide with the groove wall, so that the groove wall and the reinforcement cage are damaged. In particular, when the superimposed wall system is adopted, the ground connecting wall and the lining wall are stressed together by the connector, and the precision requirement of the connector is quite strict. The important ring of the precision control of the connector is the precision control of the steel reinforcement cage during hoisting, and once the steel reinforcement cage is inclined in the hoisting process, the using effect of the connector is affected. At present, the steel reinforcement cage is mainly hung by a crawler crane, and the total station is used for assisting in measuring and controlling verticality, but the expected effect is difficult to achieve.
Therefore, how to effectively improve the perpendicularity of the steel reinforcement cage entering the groove and ensure the stability of the steel reinforcement cage entering the groove is a problem which needs to be solved at present.
Disclosure of Invention
The invention aims to provide a device for guaranteeing vertical hoisting of a reinforcement cage of a diaphragm wall, which controls the verticality of the reinforcement cage in the hoisting process, the central position of the diaphragm wall and a method for guaranteeing the stability during hoisting.
In order to solve the technical problems, the invention adopts the following technical scheme: a device for ensuring vertical hanging of a diaphragm wall reinforcement cage, comprising:
a first fixing plate vertically disposed;
the two groups of connecting pipes are symmetrically arranged on the first fixing plate, and each connecting pipe is perpendicular to the plane where the first fixing plate is positioned;
a pulley is arranged at one end of each connecting pipe far away from the first fixing plate, and the outer side (the outer side refers to the side of the pulley far away from the center of the first fixing plate) of the pulley exceeds the first fixing plate;
the bottom of the first fixing plate is fixedly connected with a second fixing plate which is horizontally arranged;
in the hanging process, the outer sides of all pulleys are contacted with the corresponding flanges of the I-steel;
each group of connecting pipes comprises two steel pipes which are arranged on the same horizontal line, the connecting lines of the pulley centers on the two groups of steel pipes are parallel, and the connecting lines of the pulley centers on the two steel pipes in the vertical direction are perpendicular to the second fixing plate.
Each group of connecting pipes comprises two steel pipes, four steel pipes are fixedly connected with the truss, and the truss can ensure that the pulley does not shift in the stress process.
The truss comprises two vertical hollow steel pipes which are respectively used for connecting the two steel pipes in the vertical direction and two transverse hollow steel pipes which are respectively used for connecting the two steel pipes in the horizontal direction; the middle parts of the two vertical hollow steel pipes are connected through a transverse connecting steel pipe; the transverse connecting steel pipes divide a quadrilateral structure formed by the two vertical hollow steel pipes and the two transverse hollow steel pipes into two small quadrilateral structures; the diagonal positions of the two small quadrilateral structures are respectively provided with an inclined steel pipe. The truss structure is stable, and further ensures that the pulley does not shift.
The connecting line of the pulley centers on the two steel pipes in the vertical direction is perpendicular to the second fixing plate, so that the steel reinforcement cage is vertical in the hoisting process.
The lower surface of the second fixing plate is fixedly connected with the tops of at least four jacks, the bottoms of the jacks are fixedly connected with the base, the pulley midline is convenient to adjust, and the pulley midline is ensured to be horizontal and the centers of the two vertical pulleys are on the same vertical line.
And 4 universal movable pulleys are arranged below the base.
The pulley is installed on the connecting pipe through the bearing, the central line of the bearing is parallel to the central line of the connecting pipe and perpendicular to the first fixing plate, so that the vertical and stable reinforcement cage descending process is further ensured, and the wall collision phenomenon is avoided.
In order to ensure a more stable structure, the device also comprises two groups of supporting pieces; wherein, the top end of one group of supporting piece is fixedly connected with one surface of the first fixed plate, and the top end of the other group of supporting piece is fixedly connected with the other surface of the first fixed plate; the bottom ends of the two groups of supporting pieces are fixedly connected with the corresponding positions of the second fixing plates respectively.
The support piece bottom with the corresponding side fixed connection of second fixed plate further guarantees the structure steadiness.
The distance between the two pulleys in the vertical direction is 1.5m.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention can ensure that the steel reinforcement cage is vertical and stable in the descending process, and does not generate wall collision; the center position in the thickness direction of the reinforcement cage is ensured to be accurate by fixing the position of the device in advance, so that the lifting process is more accurate;
2. the device is convenient to process, takes materials on site, has simple construction process and is convenient for field application.
Drawings
FIG. 1 is a front view of a I-steel using the apparatus as it slides down a pulley;
FIG. 2 is a front view of the device of the present invention;
FIG. 3 is a side view of the device of the present invention;
wherein: 1-200X 200H-shaped steel welding base, 2-universal pulley, 3-hydraulic jack, 4-fixed steel pipe, 5-1500mm X800 mm X10 mm steel plate, 6-1700mm X700 mm X10 mm,7-100mm X100 mm square-shaped steel,hollow steel pipe (S)>The hollow steel pipe, the bearing pulley of 10-6314 model, the 11-I-steel joint, the 11.1-I-steel web and the 11.2-I-steel flange.
Detailed Description
Referring to fig. 2 and 3, the present invention includes 4 pulleys 10 byThe hollow steel pipe 9 is welded with the rear steel plate 6 (the first fixed plate), and the steel pipe 9 is parallel to the center line of a bearing (a pulley is arranged on the bearing) and perpendicular to the steel plate 6; to ensure the stability of the bearing pulley 10, use is made of +.>The truss welded by the hollow steel pipe 8 is fixed with a pulley, so that the pulley is ensured not to shift in position in the stress process; the steel plate 6 is welded with the steel plate 5 vertically; the tops of the 4 hydraulic jacks 3 are welded with a steel plate 5 (a second fixed plate), and the bottoms of the 4 hydraulic jacks are welded with a 200X 200H-shaped steel welding base frame 1; and 4 universal movable pulleys 2 and 4 positioning and fixing steel pipes 4 are welded and installed below the profile steel base frame 1.
The pulley 10 is of the type 6314 of a deep groove ball bearing, the outer diameter is 150mm, the inner diameter is 70mm, the thickness is 35mm, the distance between two vertical pulleys is 1.5m, and four pulleys pass throughThe hollow steel pipe and the rear steel plate are welded into a whole, and the steel pipe is parallel to the center line of the bearing and perpendicular to the steel plate; to ensure the stability of the bearing pulley, use is made of +.>The truss welded by the hollow steel pipe is used for fixing the pulley, so that the pulley is ensured not to shift in position in the stress process. The tops of the 4 hydraulic jacks are welded with the steel plate, the bottoms of the 4 hydraulic jacks are welded with a base frame welded by 200X 200H-shaped steel, and the pulley inclination is changed by adjusting the heights of the jacks, so that the centers of the two vertical pulleys are positioned on the same vertical line; the device can be freely moved on the one hand, and on the other hand, after moving to the appointed position, the device is fixed by utilizing the positioning steel pipes and the ground embedded bars, and the stability of the device is ensured by applying the counterweight and the bottom pulley fixed baffle.
The pulley 10 tends to be adjusted by the 4 hydraulic jacks 3 at the bottom, and the verticality of the reinforcement cage can be guaranteed to be 1/500 when the horizontal distance deviation of the two vertical pulleys is within 3 mm. The connecting line of the two vertical pulleys is completely vertical, so that the steel reinforcement cage can be guaranteed to be completely vertical when being placed down.
Truss welded by hollow steel pipe 8 and 4 +.>The hollow steel pipe 9 is welded, so that the pulley 10 is fixed, and the pulley 10 is ensured not to shift in position in the process of being stressed.
The steel plate frame bodies (steel plate 6 and steel plate 5) are vertically welded by two steel plates, and 100mm×100mm square steel is welded to increase the stability, and the dimensions of the steel plate 6 and the steel plate 5 are 1700mm×700mm×10mm and 1500mm×800mm×10mm respectively.
The truss comprises two vertical hollow steel pipes which are respectively used for connecting the two steel pipes in the vertical direction and two transverse hollow steel pipes which are respectively used for connecting the two steel pipes in the horizontal direction; the middle parts of the two vertical hollow steel pipes are connected through a transverse connecting steel pipe; the transverse connecting steel pipes divide a quadrilateral structure formed by the two vertical hollow steel pipes and the two transverse hollow steel pipes into two small quadrilateral structures; the diagonal positions of the two small quadrilateral structures are respectively provided with an inclined steel pipe.
The invention uses the principle of 'two points are used for determining a straight line', and ensures that the central connecting line of two vertical pulleys is vertical, so that the steel reinforcement cage can be ensured to drop vertically along the pulleys in the hoisting process. Referring to fig. 1, the construction steps of the invention for ensuring the vertical hoisting of the steel reinforcement cage of the diaphragm wall are as follows:
1) Before the underground wall-connected reinforcement cage is hoisted, the device is moved to a designated position of a guide wall through measurement and is fixed with a guide wall embedded reinforcement;
2) The hydraulic jack is regulated, so that the center line of the pulley is horizontal, the centers of the two vertical pulleys are on the same vertical line, and the deviation is not more than 3mm;
3) When the crawler crane lifts the steel reinforcement cage, the flange of the I-steel slowly descends in contact with the pulley, and the I-steel and the steel reinforcement cage are welded into a whole, so that the pulley ensures the vertical lowering of the I-steel and the vertical lowering of the steel reinforcement cage; and the pulley also plays a role of clamping, so that the lifting process is more stable, and the shaking phenomenon is avoided.
The invention provides a device and a construction method capable of ensuring that a diaphragm wall reinforcement cage is vertically hung, and the diaphragm wall reinforcement cage is vertically put into a groove and does not shake; the device is simple to process, convenient to manufacture and convenient to apply in site.
Claims (10)
1. The utility model provides a device of guaranteeing that wall steel reinforcement cage is hung perpendicularly, its characterized in that includes:
a first fixing plate vertically disposed;
the two groups of connecting pipes are symmetrically arranged on the first fixing plate, and each connecting pipe is perpendicular to the plane where the first fixing plate is positioned;
a pulley is arranged at one end of each connecting pipe far away from the first fixing plate, and the outer side of each pulley exceeds the first fixing plate;
the bottom of the first fixing plate is fixedly connected with a second fixing plate which is horizontally arranged;
in the hanging process, the outer sides of all pulleys are contacted with the corresponding flanges of the I-steel; the I-steel and the steel reinforcement cage are welded into a whole;
each group of connecting pipes comprises two steel pipes arranged on the same horizontal line, the connecting lines of the pulley centers on the two groups of steel pipes are parallel, and the connecting lines of the pulley centers on the two steel pipes in the vertical direction are perpendicular to the second fixing plate.
2. The apparatus for ensuring vertical hanging of a diaphragm wall reinforcement cage of claim 1, wherein four of said steel pipes are fixedly connected to a truss provided on said first fixing plate.
3. The device for ensuring vertical hanging of the diaphragm wall reinforcement cage according to claim 2, wherein the truss comprises two vertical hollow steel pipes for connecting two steel pipes in the vertical direction respectively, and two horizontal hollow steel pipes for connecting two steel pipes in the horizontal direction respectively; the middle parts of the two vertical hollow steel pipes are connected through a transverse connecting steel pipe; the transverse connecting steel pipes divide a quadrilateral structure formed by the two vertical hollow steel pipes and the two transverse hollow steel pipes into two small quadrilateral structures; the diagonal positions of the two small quadrilateral structures are respectively provided with an inclined steel pipe.
4. The device for ensuring vertical lifting of a diaphragm wall reinforcement cage according to claim 1, wherein the lower surface of the second fixing plate is fixedly connected with at least four jack tops, and the jack bottoms are fixedly connected with the base.
5. The apparatus for ensuring vertical hanging of a wall-connected reinforcement cage according to claim 4, wherein 4 universal moving pulleys are installed under the base.
6. The apparatus for securing a vertical hanging of a wall-attached reinforcement cage as claimed in any one of claims 1 to 5, wherein the pulley is mounted to the connection pipe by a bearing, and a center line of the bearing is parallel to a center line of the connection pipe and perpendicular to the first fixing plate.
7. The apparatus for ensuring vertical hanging of a diaphragm wall rebar cage according to any one of claims 1 to 5, further comprising two sets of support members; wherein, the top end of one group of supporting piece is fixedly connected with one surface of the first fixed plate, and the top end of the other group of supporting piece is fixedly connected with the other surface of the first fixed plate; the bottom ends of the two groups of supporting pieces are fixedly connected with the corresponding positions of the second fixing plates respectively.
8. The apparatus for securing a vertical suspension of a wall-attached reinforcement cage as defined by claim 7 wherein said support bottom end is fixedly connected to a corresponding side of said second securing plate.
9. The apparatus for securing vertical hanging of a wall-attached reinforcement cage as set forth in any one of claims 1 to 5, wherein the distance between the two pulleys in the vertical direction is 1.5m.
10. A method for ensuring vertical hanging of a diaphragm wall reinforcement cage by using the device of any one of claims 1 to 9, comprising the steps of:
before the ground wall-connected reinforcement cage is hung, the device is moved to a designated position of a guide wall and is fixedly connected with the guide wall embedded reinforcement;
the hydraulic jack is regulated, so that the center line of the pulley is horizontal, the centers of the two vertical pulleys are on the same vertical line, and the deviation is not more than 3mm;
when the crawler crane is used for placing the reinforcement cage, the position of the pulleys is adjusted, the central connecting line of the two vertical pulleys is ensured to be vertical, the flange of the I-steel is contacted with the pulleys, and the I-steel slowly descends; and the I-steel and the steel reinforcement cage are welded into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910520634.2A CN110258534B (en) | 2019-06-17 | 2019-06-17 | Device and method for guaranteeing vertical hoisting of diaphragm wall reinforcement cage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910520634.2A CN110258534B (en) | 2019-06-17 | 2019-06-17 | Device and method for guaranteeing vertical hoisting of diaphragm wall reinforcement cage |
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| Publication Number | Publication Date |
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| CN110258534A CN110258534A (en) | 2019-09-20 |
| CN110258534B true CN110258534B (en) | 2024-01-30 |
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| CN110258534A (en) | 2019-09-20 |
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