CN114541652A - V-shaped steel column and construction method thereof - Google Patents
V-shaped steel column and construction method thereof Download PDFInfo
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- CN114541652A CN114541652A CN202210259484.6A CN202210259484A CN114541652A CN 114541652 A CN114541652 A CN 114541652A CN 202210259484 A CN202210259484 A CN 202210259484A CN 114541652 A CN114541652 A CN 114541652A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 91
- 239000010959 steel Substances 0.000 title claims abstract description 91
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 33
- 238000003466 welding Methods 0.000 claims description 32
- 238000011900 installation process Methods 0.000 abstract description 6
- 239000011150 reinforced concrete Substances 0.000 abstract description 3
- 239000004567 concrete Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 230000002787 reinforcement Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000009193 crawling Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
Abstract
The invention discloses a V-shaped steel column and a construction method thereof, wherein the construction method comprises the following steps: a first connecting piece: the first connecting piece is arranged in the middle of the column body and comprises two first connecting lug plates with included angles; pre-embedding a plate: the embedded plates are embedded in a floor structure in advance, the floor structure is provided with two adjacent embedded grooves, the bottoms of the two embedded grooves are both embedded with the embedded plates, and the two embedded plates are both fixed with second connecting ear plates; a second connecting piece: the two first connecting pieces are respectively provided with a second connecting piece, and the second connecting pieces are respectively in pin joint with the first connecting lug plate and the second connecting lug plate; the top of the column is inclined away from the floor structure; the two first connecting lug plates and the two second connecting lug plates are parallel to a horizontal plane and are positioned on the same horizontal plane; by adopting the scheme, the steel column and the reinforced concrete structure form reliable tie, and the structural safety and the overall stability of the steel column after installation in the installation process are ensured.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a V-shaped steel column and a construction method thereof.
Background
The V-shaped steel column has the characteristic of attractive appearance and atmosphere, so that the V-shaped steel column is widely popularized and applied in large building entities nowadays. However, compared with the integral connection of a common reinforced concrete frame column in the construction process of the V-shaped steel column at the outer edge of the structure, the V-shaped steel column at the outer edge is relatively independent, so that the structure installation precision is relatively complex in the installation process.
Therefore, there is a need for a structure and design that can improve the installation stability of the V-shaped steel column and prevent the V-shaped steel column from being instably collapsed.
Disclosure of Invention
The invention aims to provide a V-shaped steel column and a construction method thereof.
The invention is realized by the following technical scheme:
a V-section steel column comprising:
a first connecting piece: the first connecting piece is arranged in the middle of the column body and comprises two first connecting lug plates with included angles;
pre-embedding a plate: the embedded plates are embedded in a floor structure in advance, the floor structure is provided with two adjacent embedded grooves, the bottoms of the two embedded grooves are both embedded with the embedded plates, and the two embedded plates are both fixed with second connecting ear plates;
a second connecting member: the two first connecting pieces are respectively provided with a second connecting piece, and the second connecting pieces are respectively in pin joint with the first connecting lug plate and the second connecting lug plate;
the top of the column body inclines towards the direction far away from the floor structure; the two first connecting lug plates and the two second connecting lug plates are parallel to the horizontal plane and are positioned on the same horizontal plane.
Compared with the prior art, the V-shaped steel column has the advantages that the structural safety and the stability of the steel column are the most important factors in the construction of the V-shaped column in the installation process due to the unique shape of the V-shaped steel column, the V-shaped steel column can be obliquely arranged, and the problem that the V-shaped steel column can be unstably installed and collapsed due to slight carelessness is solved; the floor structure is also provided with an embedded plate, and in order to save installation space, the floor structure is provided with two adjacent embedded grooves, so that the embedded plate is stably embedded in the floor structure, and the end surface of the embedded plate is just level to the ground of the embedded groove; a second connecting lug plate is welded on the section of the embedded plate, then a second connecting piece is arranged between the second connecting lug plate and the first connecting lug plate, and the second connecting lug plate and the first connecting lug plate are integrally connected through the second connecting piece to form an effective tie; the two ends of the second connecting piece are respectively hinged with the first connecting lug plate through a pin shaft and a second connecting lug plate, so that correction can be performed within a reliable range, and the column body is stable; wherein, two first connection otic placodes and two second connection otic placodes are all parallel to each other with the horizontal plane to be in on same horizontal plane, just can form horizontal drawknot this moment, ensure the overall stability after the structure safety and the installation in the steel column installation.
Further optimizing, the second connecting lug plate is positioned in the center of the embedded plate and on the transverse central line of the embedded plate; the method is used for improving the stability of the embedded plate.
Further optimizing, one side of the embedded plate, which is far away from the column body, is provided with embedded columns, and the embedded columns penetrate into the floor structure; the method is used for improving the stability of the embedded plate.
Further optimizing, the construction method of the V-shaped steel column comprises the following steps:
s1: pouring a floor structure, and embedding the embedded plate on the floor structure;
s2: preparing a column body, and horizontally installing a first connecting piece in the middle of the column body according to the inclination angle of the column body;
s3: then, building a temporary support at the pre-installation position of the column body;
s4: after the temporary support is built, the column body is hoisted at a pre-installation position, and the column body is supported through the temporary support;
s5: then welding a second connecting lug plate on the embedded plate, and respectively connecting a second connecting piece with the first connecting lug plate and the second connecting lug plate through pins;
s6: and (5) removing the temporary supports, and finishing the installation of the V-shaped steel column.
Further preferably, the step S1 further includes the following sub-steps: when the embedded plate is embedded in a floor structure, the axis position of the embedded plate and the verticality when the embedded plate enters the floor structure need to be checked and positioned at any time, and the embedded plate is supported and fixed through the temporary supporting piece.
Further preferably, the step S5 further includes the following sub-steps: before welding the second connecting lug plate, the mounting precision of the first connecting lug plate and the positioning axis on the embedded plate need to be integrally retested, and the positioning axis on the embedded plate needs to be corrected according to the actual mounting position.
Further optimization, a plurality of lifting lugs are sequentially arranged along the length direction of the column body; the angle of the column body is adjusted when the column body is hoisted.
Further optimize, interim support is including supporting the support body, it is fixed in ground to support the support body, it is equipped with the slip locating template to support the support body top, the slip locating template includes location platform and sliding plate, location platform is fixed in and supports the support body top, sliding plate and location platform sliding connection: the sliding plate can slide along the horizontal projection line direction of the inclined line of the cylinder; one side of the sliding plate is propped against the column body; one side of the sliding plate is provided with an arc-shaped end surface matched with the side surface of the column body; for fine adjustment of the angle of inclination of the column.
Preferably, a jack is fixed on the positioning platform, and a telescopic end of the jack is used for driving the sliding plate to slide; the sliding plate is used for controlling the sliding of the sliding plate and improving the adjustment precision of the angle.
Further optimization, the temporary support is respectively anchored on the ground and the floor structure through a plurality of anchor cables; for improving the stability of the temporary stent.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention provides a V-shaped steel column and a construction method thereof, and by adopting the scheme, a V-shaped support embedded part is embedded in a reinforced concrete structure in the construction process of the V-shaped steel column, and after the strength of the concrete structure reaches the design strength, the V-shaped steel column is connected with the steel column through the V-shaped support in the installation process of the V-shaped steel column, so that the V-shaped steel column and the concrete structure form reliable tie, and the structural safety in the installation process of the steel column and the integral stability after installation are ensured. And a reference basis is provided for subsequent V-shaped steel column construction and similar projects in the future.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that those skilled in the art may also derive other related drawings based on these drawings without inventive effort. In the drawings:
FIG. 1 is a schematic structural view of a V-shaped steel column according to the present invention;
FIG. 2 is a partial schematic view of a V-shaped steel column according to the present invention;
FIG. 3 is a schematic structural diagram of an embedded plate of a V-shaped steel column provided by the invention;
FIG. 4 is a schematic structural view of a column body of a V-shaped steel column according to the present invention;
FIG. 5 is a schematic view of an installation structure of a V-shaped steel column according to the present invention;
fig. 6 is a partial schematic view of an installation structure of a V-shaped steel column according to the present invention.
Reference numbers and corresponding part names in the drawings:
1-column body, 2-first connecting piece, 21-first connecting lug plate, 3-embedded plate, 31-second connecting lug plate, 32-embedded column, 4-floor structure, 41-embedded groove, 5-second connecting piece, 6-temporary supporting piece, 7-lifting lug, 8-supporting frame body, 9-sliding positioning template, 91-positioning platform, 92-sliding plate, 10-lifting jack and 11-anchor cable.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
This example 1 provides a V-shaped steel column, as shown in fig. 1 to 6, including:
first connecting member 2: the first connecting piece 2 is arranged in the middle of the column body 1, and the first connecting piece 2 comprises two first connecting lug plates 21 with included angles;
pre-buried plate 3: the embedded plates 3 are embedded in a floor structure 4 in advance, two adjacent embedded grooves 41 are formed in the floor structure 4, the embedded plates 3 are embedded in the bottoms of the two embedded grooves 41, and second connecting lug plates 31 are fixed on the two embedded plates 3;
second connecting member 5: the two first connecting pieces 2 are respectively provided with a second connecting piece 5, and the second connecting pieces 5 are respectively in pin joint with the first connecting lug plate 21 and the second connecting lug plate 31;
the top of the column 1 is inclined away from the floor structure 4; the two first connecting ear plates 21 and the two second connecting ear plates 31 are parallel to the horizontal plane and are in the same horizontal plane.
Compared with the prior art, the V-shaped steel column has the advantages that the structural safety and the stability of the steel column are the heaviest in the construction of the V-shaped column in the installation process due to the unique shape of the V-shaped steel column, the V-shaped steel column can be obliquely arranged, and the problem that the V-shaped steel column can be unstably installed and collapsed due to slight carelessness is solved; the floor structure 4 is also provided with the embedded plate 3, and in order to save installation space, the floor structure 4 is provided with two adjacent embedded grooves 41, so that the embedded plate 3 is stably embedded in the floor structure 4, and the end surface of the embedded plate 3 is just level with the ground of the embedded groove 41; a second connecting lug plate 31 is welded on the section of the embedded plate 3, then a second connecting piece 5 is arranged between the second connecting lug plate 31 and the first connecting lug plate 21, and the second connecting lug plate 31 and the first connecting lug plate 21 are integrally connected through the second connecting piece 5 to form an effective drawknot; wherein, two ends of the second connecting piece 5 are respectively hinged with the first connecting ear plate 21 through a pin shaft and a second connecting ear plate 31, which can be corrected in a reliable range to stabilize the column body 1; wherein, two first connection otic placodes 21 and two second connection otic placodes 31 are all parallel to each other with the horizontal plane to be in on the same horizontal plane, just can form the horizontal drawknot this moment, ensure the structural safety in the steel column installation and the overall stability after the installation.
In this embodiment, the second connecting ear plate 31 is located at the center of the embedded plate 3 and on the transverse center line of the embedded plate 3; in order to improve the stability of the embedded plate 3, in the scheme, the second connecting lug plate 31 is welded at the central position of the embedded plate 3, and a connecting line between the second connecting lug plate and the embedded plate 3 is positioned on the transverse central line of the embedded plate 3 and is symmetrical along the vertical central line of the embedded plate 3; when the second connecting lug plate 31 is positioned, spot welding positioning is firstly adopted, the accuracy of the mounting position of the retest structure is adjusted if the mounting position is out of tolerance, and welding is carried out after the mounting position is qualified; the second connecting lug plate 31 and the embedded part are welded by CO2 gas shielded welding with small welding line energy, and multi-layer multi-pass welding is adopted as much as possible, so that the influence of welding deformation, particularly welding shrinkage deformation, on the installation accuracy of the structural column is reduced. And the welding heat input amount is controlled in the welding process, so that the concrete structure is prevented from being damaged by welding.
In this embodiment, a side of the embedded plate 3 away from the column body 1 is provided with an embedded column 32, and the embedded column 32 extends into the floor structure 4; in order to improve the stability of the embedded plate 3, the embedded plate 3 is also provided with embedded columns 32, wherein the embedded plate 3 comprises two annular plates which are parallel to each other, the two annular plates are fixed by a plurality of anchor bolts and then are arranged in a bearing platform reinforcement cage, and the embedded part anchor bolts and the annular plates are all processed and manufactured in a factory; fixing the fixing support with a reinforcement cage in the concrete bearing platform after the fixing support is accurately positioned by using a positioning line and a level gauge; then concrete pouring is carried out to form the embedded plates 3, and on the bearing table surface, the anchor bolts exceed the bearing table surface and are fixedly connected with the embedded columns 32 to form a stable structure; the embedded column 32 is inserted into a civil engineering reinforcement cage for installation and positioning, the axis position of the embedded plate 3 and the plate entering verticality are required to be positioned, namely, when the embedded column 32 is inserted, the embedded plate 3 needs to enter the plate vertically, and the embedded plate is fixed by the temporary support piece 6.
Example 2
The embodiment 2 is further optimized on the basis of the embodiment 1, and as shown in fig. 5, a method for constructing a V-shaped steel column is provided, which includes the following steps:
s1: pouring a floor structure 4, and embedding the embedded plate 3 on the floor structure 4;
s2: preparing a column body 1, and horizontally installing a first connecting piece 2 in the middle of the column body 1 according to the inclination angle of the column body 1;
s3: then constructing a temporary support at the pre-installation position of the column body 1;
s4: after the temporary support is built, the column body 1 is hoisted at a pre-installation position, and the column body 1 is supported through the temporary support;
s5: then welding a second connecting lug plate 31 on the embedded plate 3, and respectively connecting the second connecting piece 5 with the first connecting lug plate 21 and the second connecting lug plate 31 in a pin joint mode;
s6: and (5) removing the temporary supports, and finishing the installation of the V-shaped steel column.
In this embodiment, the step S1 further includes the following sub-steps: when the embedded plate 3 is embedded in the floor structure 4, the axis position of the embedded plate 3 and the verticality when the plate enters need to be checked and positioned at any time, and the embedded plate is supported and fixed through the temporary supporting piece 6.
In this embodiment, the step S5 further includes the following sub-steps: before welding the second connecting lug plate 31, the mounting accuracy of the first connecting lug plate 21 and the positioning axis on the embedded plate 3 need to be integrally retested, and the positioning axis on the embedded plate 3 needs to be corrected according to the actual mounting position.
The specific working principle of the scheme is as follows: firstly, in step S1, installing and pouring a floor structure 4, and embedding an embedded plate 3 in the pouring process, wherein the embedded plate 3 is composed in such a way that an anchor bolt is firmly fixed by two annular plates and is installed in a bearing platform steel reinforcement cage, the embedded part anchor bolt and the annular plates are all processed and manufactured in a factory, a fixed support is fixed with the steel reinforcement cage in a concrete bearing platform after being accurately positioned by a positioning line and a level gauge, and the embedded part is required to be checked at any time when concrete is poured and constructed, and the positioning axis of the support is required to be ensured not to deviate. Adjusting the lower adjusting bolts in place, retesting the elevation of each positioning bolt, installing and positioning the processed embedded steel skeleton columns, embedded plates and civil engineering steel reinforcement cages, requiring to position the axis position of the embedded plates 3 and the plate-entering verticality, fixing by using the temporary supporting pieces 6, checking the relative position of the embedded plates 3, particularly the verticality of the embedded plates 3 at any time during the concrete pouring construction process by using the steel skeleton beams, and drawing out the installation central position line of the V-shaped supporting connecting plate after construction. In step S2, when the steel column is installed and prepared, the concrete construction measures are as follows: hoisting the column base on a bearing platform in sections for positioning, positioning the axis positions of the steel column in two directions by adopting a theodolite, and temporarily fixing the axis positions by using bolts; the steel column embedded section controls the plane position and the vertical elevation of a steel column through an adjusting nut on an anchor bolt, and a fixing nut and the adjusting nut are screwed tightly; after the steel column is positioned, pressure grouting is immediately carried out on the lower portion of the column bottom, and meanwhile, the position size and the elevation of the steel column are monitored, so that the steel column is not influenced by grouting; and (3) constructing the outer package of concrete at the base section of the steel column, and simultaneously monitoring the central size and the elevation of the top of the steel column in real time in the concrete construction process. And S3, constructing a temporary support, hoisting the steel column, arranging a hoisting point at the position of the pre-welded connecting lug plate, and hoisting by adopting a single machine rotation method and a special hoisting tool for clamping in order to prevent the deformation of the hoisting lug 7 during hoisting. Before hoisting, a sleeper should be laid on the steel column to avoid the contact between the bottom of the steel column and the ground during hoisting, and the dragging phenomenon of the column end on the ground cannot occur during hoisting; assembling a steel crawling ladder and a temporary assembly type operating platform for installing steel beams before hoisting the steel column, wherein the temporary assembly type operating platform can be disassembled and replaced for steel beam installation and column butt joint; in the process of hoisting the steel column, the steel column is firstly fixed and connected through temporary connecting pieces at the upper end and the lower end of the steel column. And comparing the distance between the elevation control lines of the upper column and the lower column with a designed elevation value, and considering the shrinkage and compression deformation of the welding line. And adjusting the elevation deviation to be within 2 mm. If the steel column is twisted, the torsion deviation of the steel column joint can be corrected by temporarily installing the jack 10 on the side surface of the column body; hoisting and positioning, integrally welding the steel column, symmetrically welding by adopting an even number of welders, integrally measuring and accepting after welding, and submitting to supervision after meeting the requirements; the top plate of the basement and the steel columns with the height of more than 13.9 meters are installed on the structural floor by adopting a 150-ton crawler crane and a 75-ton truck crane, in order to ensure the safety of the finished concrete structure, a steel roadbed box is arranged on the traveling route of the crane, and four corners of the roadbed box are supported on the beam column structure of the floor slab, so that the floor slab is prevented from being damaged. Finally, step S4 and step S5 are carried out, V-shaped steel columns are installed, the steel columns on the peripheries of the finger gallery and the hall are inclined outwards by 10 degrees, and the inclined columns are heavy in weight and long in length, so that temporary supports are needed to be arranged before the inclined columns are installed, cable wind ropes are arranged on the temporary supports, one sides of the temporary supports are fixed with additionally-arranged embedded parts on the floor, one sides of the temporary supports are fixed with ground anchors, and the upper ends of the temporary supports are provided with sliding positioning templates 9; after the temporary support is installed, the inclined column is hoisted, and the installation angle of the inclined column is adjusted by adopting a chain block before hoisting, so that the positioning of the inclined column is facilitated; the inclined column, the lower end column foot section and the temporary support are preliminarily positioned, and the temporary support cable rope is adjusted to ensure the stability of the temporary support; after the batter post is preliminarily positioned, the batter post is accurately positioned through a lower end horizontal and vertical adjusting device and an upper end movable template, welding is carried out after positioning, and a horizontal V-shaped support is installed in time after welding; the installation technology and measures for installing the V-shaped support comprise the following steps: before the steel column V-shaped support is installed, the installation precision of a steel column V-shaped support ear plate and a positioning axis on a V-shaped support embedded part are integrally retested, and the positioning center line on the V-shaped support embedded part is corrected according to the actual structure installation position; firstly, the V-shaped support and the steel column connecting lug plate are fixed in a pin joint mode, and then the lug plate on the V-shaped support embedded part is connected with the V-shaped support. The V-shaped supporting and embedding part side ear plate is connected with the embedded part in a positioning mode, spot welding positioning is firstly adopted during positioning, the accuracy of the installation position of the structure is retested, and if out of tolerance is adjusted, welding is carried out after the accuracy is qualified. The lug plate and the embedded part are welded by adopting CO2 gas shielded welding with small welding line energy, and multilayer multi-pass welding is adopted as much as possible, so that the influence of welding deformation, particularly welding shrinkage deformation, on the installation precision of the structural column is reduced. The welding heat input amount is controlled in the welding process, so that the concrete structure is prevented from being damaged by welding; and after the installation of the V-shaped support is finished, retesting the installation accuracy of the steel column.
Example 3
The embodiment 3 is further optimized based on the embodiment 2, and is used as another implementation mode.
In this embodiment, a plurality of lifting lugs 7 are sequentially arranged along the length direction of the column body 1; for when hoist and mount cylinder 1, the angle of adjustment cylinder 1, in this scheme, be equipped with a plurality of lugs 7 in proper order on the length direction of cylinder 1 to use the crane hoist and mount, adopt the mounting angle of chain block regulation cylinder 1 before hoist and mount, convenient location.
In this embodiment, the temporary support includes support frame body 8, support frame body 8 is fixed in ground, support frame body 8 top is equipped with slip positioning template 9, slip positioning template 9 includes location platform 91 and sliding plate 92, location platform 91 is fixed in support frame body 8 top, sliding plate 92 and location platform 91 sliding connection: the sliding plate 92 is slidable in the horizontal projection line direction of the inclined line of the column 1; the sliding plate 92 is pressed against the cylinder 1 on one side; one side of the sliding plate 92 is provided with an arc-shaped end surface matched with the side surface of the column body 1; in order to finely adjust the inclination angle of the column body 1, in the scheme, a temporary support is arranged on the ground, a ground anchor is arranged on the ground, the bottom of the column body 1 is fixed through the ground anchor, obliquely abuts against the temporary support and is supported by the temporary support; the support frame body 8 is provided with a protective railing, a ladder stand and the like, so that the operation of workers is facilitated; a sliding positioning template 9 is arranged at the top of the support frame body 8, the sliding positioning template 9 comprises a positioning platform 91 and a sliding plate 92, the positioning platform 91 is fixed at the top of the support frame body 8, the sliding plate 92 is installed on the positioning platform 91, the sliding plate 92 slides on the positioning platform 91 and supports the column body 1 through an arc-shaped end surface at one side, the arc-shaped end surface exceeds the positioning platform 91, and the arc shape is matched with the radian of the side wall of the column body 1; by sliding the slide plate 92, the tilt angle of the column 1 can be finely adjusted.
In this embodiment, a jack 10 is fixed on the positioning platform 91, and a telescopic end of the jack 10 is used for driving the sliding plate 92 to slide; the intelligent control device is used for controlling the sliding of the sliding plate 92 and improving the adjustment precision of the angle, wherein the jack 10 is an electric jack 10, and the intelligent control jack 10 is used for jacking and driving the sliding plate 92 to slide so as to adjust the angle position of the column body 1.
In this embodiment, the temporary support is anchored to the ground and the floor structure 4 by a plurality of anchor cables 11; for improving the stability of the temporary scaffold; wherein the anchor cable 11 is a guy cable and is fixed by additionally arranging embedded parts on the ground and the floor structure 4.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A V-section steel column comprising:
first connecting member (2): the first connecting piece (2) is arranged in the middle of the column body (1), and the first connecting piece (2) comprises two first connecting lug plates (21) which form an included angle with each other;
pre-embedded plate (3): the embedded plates (3) are embedded in a floor structure (4), two adjacent embedded grooves (41) are formed in the floor structure (4), the embedded plates (3) are embedded in the bottoms of the two embedded grooves (41), and second connecting lug plates (31) are fixed on the two embedded plates (3);
second connecting member (5): the two first connecting pieces (2) are respectively provided with a second connecting piece (5), and the second connecting pieces (5) are respectively in pin joint with the first connecting lug plates (21) and the second connecting lug plates (31);
the top of the column (1) is inclined towards the direction far away from the floor structure (4); the two first connecting lug plates (21) and the two second connecting lug plates (31) are parallel to the horizontal plane and are positioned on the same horizontal plane.
2. The V-shaped steel column according to claim 1, wherein the second connecting lug plate (31) is located at the center of the embedded plate (3) and on the transverse center line of the embedded plate (3).
3. A V-section steel column according to claim 1, characterized in that the side of the embedded plate (3) remote from the column body (1) is provided with embedded columns (32), and the embedded columns (32) penetrate into the floor structure (4).
4. The construction method of the V-shaped steel column according to any one of claims 1 to 3, characterized by comprising the following steps:
s1: pouring a floor structure (4), and embedding the embedded plate (3) on the floor structure (4);
s2: preparing a column body (1), and horizontally installing a first connecting piece (2) in the middle of the column body (1) according to the inclination angle of the column body (1);
s3: then, a temporary support is built at the pre-installation position of the column body (1);
s4: after the temporary support is built, the column body (1) is hoisted at a pre-installation position, and the column body (1) is supported through the temporary support;
s5: then welding a second connecting lug plate (31) on the embedded plate (3), and respectively connecting the second connecting piece (5) with the first connecting lug plate (21) and the second connecting lug plate (31) in a pin joint manner;
s6: and (5) removing the temporary supports, and finishing the installation of the V-shaped steel column.
5. The construction method of a V-shaped steel column according to claim 4, wherein the step S1 further includes the following sub-steps: when the embedded plate (3) is embedded in the floor structure (4), the axis position of the embedded plate (3) and the verticality when the plate enters need to be checked and positioned at any time, and the embedded plate is supported and fixed through the temporary support piece (6).
6. The construction method of a V-shaped steel column according to claim 4, wherein the step S5 further includes the following sub-steps: before welding the second connecting lug plate (31), the mounting precision of the first connecting lug plate (21) and the positioning axis on the embedded plate (3) need to be integrally retested, and the positioning axis on the embedded plate (3) needs to be corrected according to the actual mounting position.
7. The construction method of a V-shaped steel column according to claim 4, wherein a plurality of lifting lugs (7) are sequentially arranged along the length direction of the column body (1).
8. The construction method of the V-shaped steel column according to claim 4, wherein the temporary support comprises a support frame body (8), the support frame body (8) is fixed on the ground, a sliding positioning template (9) is arranged on the top of the support frame body (8), the sliding positioning template (9) comprises a positioning platform (91) and a sliding plate (92), the positioning platform (91) is fixed on the top of the support frame body (8), and the sliding plate (92) and the positioning platform (91) are slidably connected: the sliding plate (92) can slide along the horizontal projection line direction of the inclined line of the column body (1); one side of the sliding plate (92) is propped against the column body (1); one side of the sliding plate (92) is provided with an arc-shaped end surface matched with the side surface of the column body (1).
9. The construction method of a V-shaped steel column according to claim 8, characterized in that a jack (10) is fixed on the positioning platform (91), and a telescopic end of the jack (10) is used for driving the sliding plate (92) to slide.
10. The construction method of a V-shaped steel column according to claim 4, characterized in that the temporary support is anchored to the ground and the floor structure (4) by a plurality of anchor lines (11), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210259484.6A CN114541652B (en) | 2022-03-16 | 2022-03-16 | Construction method of V-shaped steel column |
Applications Claiming Priority (1)
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| CN115492397A (en) * | 2022-06-01 | 2022-12-20 | 中冶(上海)钢结构科技有限公司 | Installation method of steel inclined column close to existing inclined structure |
| CN116122602A (en) * | 2023-04-07 | 2023-05-16 | 北京城建集团有限责任公司 | V-shaped column auxiliary debugging and installing system and using method |
| CN116517122A (en) * | 2023-07-03 | 2023-08-01 | 北京建工集团有限责任公司 | Curve fixing structure of high-precision large embedded part and monitoring construction method |
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| CN114541652B (en) | 2023-11-28 |
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