CN112049020A - Method for vertically installing large steel pipe upright post - Google Patents
Method for vertically installing large steel pipe upright post Download PDFInfo
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- CN112049020A CN112049020A CN202010965407.3A CN202010965407A CN112049020A CN 112049020 A CN112049020 A CN 112049020A CN 202010965407 A CN202010965407 A CN 202010965407A CN 112049020 A CN112049020 A CN 112049020A
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- steel pipe
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- upright post
- pipe upright
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- Civil Engineering (AREA)
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Abstract
The invention discloses a method for vertically installing a large steel pipe upright post. It adopts the steel pipe stand to erect installation device, and the installation device is erect to the steel pipe stand includes steel bottom plate, steel pipe stand ring flange, pre-buried rag bolt in the basis, the steel pipe stand ring flange with the steel bottom plate articulates into the structure of foling through round steel round pin axle, and the steel pipe stand is connected on steel pipe stand ring flange, and the steel pipe stand adopts wire rope to connect the chain fall form, through artifical pulling chain fall as traction force, pulls the steel pipe stand and erects. The invention can erect and install the steel pipe column without adopting large-scale hoisting equipment, effectively reduces the safety risk, and solves the problems that the large-scale hoisting equipment cannot be used and the large-scale steel pipe column cannot be erected and installed under a high-voltage line and in special areas beside the existing railway and the like under the influence of various safety factors. The method is simple to operate, high in construction efficiency, beneficial to shortening the construction period and high in practicability.
Description
Technical Field
The invention relates to a method for vertically installing a large steel pipe upright post, and belongs to the technical field of bridge construction.
Background
The continuous beam is a common large-span hole span structure in a bridge and is often used for spanning large structures such as highways, railways, rivers, pipe culverts and the like. In the construction of the continuous beam, a support method is often adopted for construction. The steel pipe upright is an important component in the construction of the bracket.
The steel pipe column is large in size, large hoisting equipment such as a crane is usually adopted for erecting and installing the steel pipe column, but the large hoisting equipment cannot be used due to the fact that the large steel pipe column cannot be erected and installed in special places such as a high-voltage line and an existing railway, and construction efficiency and construction period are affected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the method for erecting and installing the large steel pipe upright post, which can erect and install the steel pipe upright post without adopting large hoisting equipment and has safe construction.
The invention is realized by the following technical scheme: a method for vertically installing a large steel pipe upright column is characterized by comprising the following steps: the steel pipe upright post erecting installation device is used for installation and comprises a steel base plate, a steel pipe upright post flange plate and foundation bolts pre-embedded in a foundation, wherein the steel base plate and the steel pipe upright post flange plate are both of rectangular plate structures, two steel sleeves are welded on one side edge of the steel pipe upright post flange plate at intervals, one steel sleeve is also welded on one side edge of the steel base plate, the steel pipe upright post flange plate and the steel base plate are hinged into a hinge structure through round steel pin shafts penetrating through the steel sleeves, and bolt holes corresponding to the foundation bolts pre-embedded in the foundation are formed in the steel base plate and the steel pipe upright post flange plate;
the method comprises the following installation steps: firstly, processing and welding the steel bottom plate, the steel pipe upright post flange plate and the steel sleeve outside the field;
fixing the foundation bolts by taking the steel bottom plate as a positioner, and pouring the foundation bolts into the foundation of the steel pipe upright;
thirdly, welding and fixing the steel pipe upright post flange plate and the steel pipe upright post;
fourthly, splicing the steel pipe upright post flange plate, the steel bottom plate and the round steel pin shaft into a hinge type;
selecting two stable traction points at the front side of the steel pipe upright column in the vertical direction, selecting one stable traction point at the rear side of the steel pipe upright column in the vertical direction, respectively installing a chain block at each traction point, and respectively connecting the top end of the steel pipe upright column with each chain block by using a steel wire rope;
the steel pipe upright post is pulled to be erected by manually pulling the chain blocks as traction force, and the three steel wire ropes operate simultaneously, wherein the two chain blocks on the front side of the steel pipe upright post are pulled, and the chain blocks on the rear side of the steel pipe upright post are loosened and stabilized, so that the steel pipe upright post is slowly erected;
seventhly, the foundation bolts are sleeved into bolt holes reserved in the steel pipe upright post flange plate, and corresponding screw caps are installed for temporary fixation;
(eighth), the standing position of the steel pipe upright post is adjusted, the round steel pin shaft is pulled out, the verticality of the steel pipe upright post is adjusted, and then a nut of a foundation bolt is fastened to fix the steel pipe upright post;
and (ninthly), dismantling the steel wire rope and the chain block, and finishing construction.
Furthermore, in order to ensure that the steel bottom plate and the foundation are fixed reliably, the foundation bolts are J-shaped bolts, and the J-shaped bolts are poured in the foundation.
Furthermore, in order to ensure reliable contact between the steel bottom plate and the base plane and ensure the fixing firmness of the steel tube stand column after installation, the lower surface of the steel sleeve welded on the side edge of the steel bottom plate does not exceed the lower bottom surface of the steel bottom plate.
Furthermore, in order to ensure that the round steel pin shaft can be smoothly installed and smoothly rotated, lubricating grease is coated on the round steel pin shaft.
In order to ensure that the steel tube stand column is stable and reliable in the erecting process, the steel tube stand column is required to be synchronously pulled and released in a chain block operation in the erecting process, and the steel tube stand column is ensured to be stable in the erecting process.
The invention has the beneficial effects that: according to the invention, traction force is applied by adopting the steel pipe upright post erecting installation device and utilizing the chain block traction steel wire rope to connect the steel pipe upright post, and the steel pipe upright post is pulled to erect by manually pulling the chain block as the traction force, so that the operation is simple, large-scale hoisting equipment is not needed in the construction process, and the steel pipe upright post can be used under the condition that large-scale machinery cannot be used under a high-voltage line, close to an existing line and the like; the manual operation is adopted, the on-site mechanical hoisting workload is reduced, and the construction safety is ensured; the invention can be constructed outside the skylight point, has high construction efficiency and is beneficial to shortening the construction period. The installation method is safe and reliable, construction quality and construction safety are guaranteed, construction personnel can perform construction operation after simple training, operability is strong, construction cost is low, and high practicability is achieved.
Drawings
FIG. 1 is a schematic view of the connection between a steel pipe column and a foundation in an embodiment;
FIG. 2 is a schematic plan view of a steel tube column and a steel tube column flange in accordance with an embodiment;
FIG. 3 is a schematic view of the connection of a steel tube column flange to a steel base plate according to an embodiment;
FIG. 4 is a schematic view of the installation of a steel pipe column according to an embodiment;
in the figure, 1, a steel pipe column, 2, a steel pipe column flange plate, 3, a steel base plate, 4, foundation bolts, 5, a foundation of the steel pipe column, 6, round steel pin shafts, 7, bolt holes, 8, a steel sleeve, 9, the steel sleeve, 10, bolt holes, 11, a chain block, 12, a steel wire rope, 13 and steel bars in the foundation.
Detailed Description
The invention will now be further illustrated by way of non-limiting examples in conjunction with the accompanying drawings:
as shown in the attached drawings, the method for vertically installing the large steel pipe upright posts adopts a steel pipe upright post vertical installation device for installation, and the steel pipe upright posts are phi 600mm x 10000 mm. The steel pipe stand erects installation device includes steel bottom plate 3, steel pipe stand ring flange 2, pre-buried rag bolt 4 in the basis, steel bottom plate 3 with steel pipe stand ring flange 2 is the rectangular plate structure, and its size is 800mm 10 mm's steel sheet processing preparation and forms. Two steel sleeves 8 are welded on one side edge of the steel pipe upright post flange plate 2 at intervals, one steel sleeve 9 is also welded on one side edge of the steel bottom plate 3, and the steel pipe upright post flange plate 2 and the steel bottom plate 3 are hinged into a hinge structure through round steel pin shafts 6 penetrating through the steel sleeves. Wherein, the sizes of the steel sleeve 8 and the steel sleeve 9 are: the inner diameter phi is 20mm, the wall thickness is 5mm, the length is 100mm, and the round steel pin shaft 6 is a round steel with phi 20mm and length 300 mm. And the steel base plate 3 and the steel pipe upright post flange plate 2 are respectively provided with a bolt hole 10 and a bolt hole 7 which correspond to the foundation bolt 4 pre-embedded in the foundation. The foundation bolts 4 are preferably J-shaped bolts with the specification of phi 20mm, and the total number of the foundation bolts is three.
The vertical installation of the steel pipe upright column comprises the following installation steps: and (I) processing and welding the steel bottom plate 3, the steel pipe upright post flange plate 2 and the steel sleeve outside the field, mounting a round steel pin shaft 6 for trial assembly, and folding after the trial assembly is finished to ensure that the steel pipe upright post flange plate 2 is tightly attached to the steel bottom plate 3. When the steel bottom plate 3 is welded with the steel sleeve 9, the lower surface of the steel sleeve 9 does not exceed the lower bottom surface of the steel bottom plate 3, and the welding is full and firm. The steel sleeve is connected with the steel pipe upright post flange 2 and the steel bottom plate 3 by full welding.
Secondly, fixing the foundation bolts 4 by taking the steel bottom plate 3 as a positioner, and pouring the foundation bolts 4 into the foundation 5 of the steel pipe upright;
thirdly, welding and fixing the steel pipe upright post flange 2 and the steel pipe upright post 1;
fourthly, the steel pipe upright post flange 2, the steel bottom plate 3 and the round steel pin shaft 6 are assembled into a hinge type;
fifthly, selecting two stable traction points at the front side of the vertical direction of the steel pipe upright post 1, selecting one stable traction point at the rear side of the vertical direction of the steel pipe upright post 1, respectively installing a chain block 11 at each traction point, and respectively connecting the top end of the steel pipe upright post 1 with each chain block 11 by using a steel wire rope 12; the specification of the steel wire rope 12 is phi 10 mm. If no proper traction point is available, the anchor piles can be manufactured manually to serve as the traction points.
The steel pipe upright post 1 is pulled to be erected by manually pulling the chain blocks as traction force, and the three steel wire ropes operate simultaneously, wherein the two chain blocks on the front side of the steel pipe upright post 1 are pulled, and the chain blocks on the rear side of the steel pipe upright post 1 are loosened and stabilized, so that the steel pipe upright post 1 is slowly erected;
seventhly, the foundation bolts 4 are sleeved into bolt holes reserved in the steel pipe upright post flange plate 2, and corresponding screw caps are installed for temporary fixation;
(eighth), the standing position of the steel pipe upright post 1 is adjusted, the round steel pin shaft 6 is pulled out, the verticality of the steel pipe upright post 1 is adjusted, and then a nut of a foundation bolt is fastened to fix the steel pipe upright post 1;
and (ninthly), dismantling the steel wire rope and the chain block, and finishing construction.
In order to ensure that the round steel pin shaft can be smoothly installed and smoothly rotated, lubricating grease can be coated on the round steel pin shaft 6. In order to ensure that the steel tube stand columns are stable and reliable in the erecting process, in the erecting process of the steel tube stand columns, constructors need to synchronously carry out the traction and releasing operation of the chain block, and uneven stress of the steel tube stand columns is avoided.
The steel pipe upright post vertical installation device can be manufactured in a factory and assembled in a trial mode, and construction progress can be greatly accelerated. During construction, 3 workers are needed for installation of the steel pipe stand column, the workers can operate after simple training, and the operation is simple. The invention adopts manual operation, reduces the workload of on-site mechanical hoisting, can be used under the condition that large-scale machinery cannot be used under a high-voltage line, close to an existing line and the like, has high construction safety and high construction efficiency, is beneficial to shortening the construction period and has higher practicability.
Other parts in this embodiment are the prior art, and are not described herein again.
Claims (5)
1. A method for vertically installing a large steel pipe upright column is characterized by comprising the following steps: the steel pipe upright post erecting installation device is used for installation and comprises a steel base plate (3), a steel pipe upright post flange plate (2) and foundation bolts (4) embedded in a foundation, wherein the steel base plate (3) and the steel pipe upright post flange plate (2) are both of rectangular plate structures, two steel sleeves are welded on one side edge of the steel pipe upright post flange plate (2) at intervals, one steel sleeve is also welded on one side edge of the steel base plate (3), the steel pipe upright post flange plate (2) and the steel base plate (3) are hinged into a hinge structure through round steel pin shafts (6) penetrating through the steel sleeves, and bolt holes corresponding to the foundation bolts (4) embedded in the foundation are formed in the steel base plate (3) and the steel pipe upright post flange plate (2);
the method comprises the following installation steps: firstly, processing and welding the steel bottom plate (3), the steel tube upright post flange plate (2) and the steel sleeve outside the field;
secondly, fixing the foundation bolts by taking the steel bottom plate (3) as a positioner, and pouring the foundation bolts into the foundation of the steel pipe upright;
thirdly, welding and fixing the steel pipe upright post flange plate (2) and the steel pipe upright post;
fourthly, the steel pipe upright post flange plate (2), the steel bottom plate (3) and the round steel pin shaft (6) are assembled into a hinge type;
selecting two stable traction points at the front side of the steel pipe upright column in the vertical direction, selecting one stable traction point at the rear side of the steel pipe upright column in the vertical direction, respectively installing a chain block at each traction point, and respectively connecting the top end of the steel pipe upright column with each chain block by using a steel wire rope;
the steel pipe upright post is pulled to be erected by manually pulling the chain blocks as traction force, and the three steel wire ropes operate simultaneously, wherein the two chain blocks on the front side of the steel pipe upright post are pulled, and the chain blocks on the rear side of the steel pipe upright post are loosened and stabilized, so that the steel pipe upright post is slowly erected;
seventhly, the foundation bolts are sleeved into the bolt holes reserved in the steel pipe upright post flange plate (2), and corresponding nuts are installed for temporary fixation;
(eighth), the standing position of the steel pipe upright post is adjusted, the round steel pin shaft (6) is pulled out, the verticality of the steel pipe upright post is adjusted, and then a nut of a foundation bolt is fastened to fix the steel pipe upright post;
and (ninthly), dismantling the steel wire rope and the chain block, and finishing construction.
2. The method for vertically installing the large steel pipe column as claimed in claim 1, wherein the method comprises the following steps: the foundation bolts (4) are J-shaped bolts, and the J-shaped bolts are poured in the foundation.
3. The method for vertically installing the large steel pipe column as claimed in claim 1, wherein the method comprises the following steps: the lower surface of the steel sleeve welded on the side edge of the steel bottom plate (3) does not exceed the lower bottom surface of the steel bottom plate (3).
4. The method for vertically installing the large steel pipe column as claimed in claim 1, 2 or 3, wherein: lubricating grease is coated on the round steel pin shaft (6).
5. The method for vertically installing the large steel pipe column as claimed in claim 1, wherein the method comprises the following steps: in the process of erecting the steel pipe stand column, the operation of pulling and releasing the chain block is carried out synchronously, and the stability of the steel pipe stand column in the erecting process is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010965407.3A CN112049020A (en) | 2020-09-15 | 2020-09-15 | Method for vertically installing large steel pipe upright post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010965407.3A CN112049020A (en) | 2020-09-15 | 2020-09-15 | Method for vertically installing large steel pipe upright post |
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| Publication Number | Publication Date |
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| CN112049020A true CN112049020A (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010965407.3A Pending CN112049020A (en) | 2020-09-15 | 2020-09-15 | Method for vertically installing large steel pipe upright post |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102923A (en) * | 2021-04-21 | 2021-07-13 | 中国十七冶集团有限公司 | Method for air butt joint of straight elbow pipe and straight pipe of medium-small pipe diameter long transmission line |
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Cited By (1)
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| CN113102923A (en) * | 2021-04-21 | 2021-07-13 | 中国十七冶集团有限公司 | Method for air butt joint of straight elbow pipe and straight pipe of medium-small pipe diameter long transmission line |
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Application publication date: 20201208 |
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