CN114541652B - Construction method of V-shaped steel column - Google Patents
Construction method of V-shaped steel column Download PDFInfo
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- CN114541652B CN114541652B CN202210259484.6A CN202210259484A CN114541652B CN 114541652 B CN114541652 B CN 114541652B CN 202210259484 A CN202210259484 A CN 202210259484A CN 114541652 B CN114541652 B CN 114541652B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 104
- 239000010959 steel Substances 0.000 title claims abstract description 104
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 42
- 238000003466 welding Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 11
- 238000011900 installation process Methods 0.000 abstract description 7
- 239000011150 reinforced concrete Substances 0.000 abstract description 5
- 239000004567 concrete Substances 0.000 description 14
- 230000002787 reinforcement Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 241000282326 Felis catus 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
- 238000005516 engineering process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 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
- 238000000465 moulding Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Classifications
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a construction method of a V-shaped steel column, which comprises the following steps: a first connector: the first connecting piece is arranged in the middle of the column body and comprises two first connecting lug plates with included angles; and (3) embedding a plate: the embedded plates are embedded in a floor structure, two adjacent embedded grooves are formed in the floor structure, embedded plates are embedded at the bottoms of the two embedded grooves, and second connecting lug plates are fixed on the two embedded plates; and 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 body is inclined towards a direction 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; by adopting the scheme, the steel column and the reinforced concrete structure form a reliable drawknot, so that the structural safety of the steel column in the installation process and the overall stability of the steel column after the installation are ensured.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method of a V-shaped steel column.
Background
The V-shaped steel column has the characteristics of attractive and atmospheric appearance, so that the V-shaped steel column is widely popularized and applied in large building entities nowadays. But in the construction of structure outer fringe V shaped steel post, compare in ordinary reinforced concrete frame post bulk connection, outer fringe V shaped steel post is relatively independent, consequently the structure installation accuracy is complicated relatively in the installation, among the prior art, because the unique molding of V shaped steel post leads to structural safety and steel post stability to become the weight of heavy in the construction of V shaped post in the installation, and V shaped steel post can slope setting, and the just careless V shaped steel post that will lead to V shaped steel post installation unstability collapse.
Therefore, a structure and design capable of improving the installation stability of the V-shaped steel column and preventing the V-shaped steel column from being unstably collapsed are needed at present.
Disclosure of Invention
The invention aims to provide a construction method of a V-shaped steel column, which adopts the scheme that the plate is embedded in a reinforced concrete structure by horizontally oppositely pulling a connecting lug plate, and after the strength of the concrete structure reaches the design strength, the V-shaped steel column is connected with the steel column through a V-shaped support in the installation process of the V-shaped steel column, so that the steel column and the reinforced concrete structure form a reliable drawknot, and the structural safety of the steel column in the installation process and the overall stability of the steel column after the installation are ensured.
The invention is realized by the following technical scheme:
a V-shaped steel column comprising:
a first connector: the first connecting piece is arranged in the middle of the column body and comprises two first connecting lug plates with included angles;
and (3) embedding a plate: the embedded plates are embedded in a floor structure, two adjacent embedded grooves are formed in the floor structure, embedded plates are embedded at the bottoms of the two embedded grooves, and second connecting lug plates are fixed on the two embedded plates;
and 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 body is inclined towards a direction 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 structure safety and the stability of the steel column are improved in the installation process, the V-shaped steel column is obliquely arranged, the V-shaped steel column is unstable and collapses due to the fact that the V-shaped steel column is slightly carelessly arranged, the V-shaped steel column is provided with the V-shaped steel column, the V-shaped steel column comprises a first connecting piece, an embedded plate and a second connecting piece, the first connecting piece and a column body are integrally formed to form a stable integral structure, the first connecting piece comprises two first connecting lug plates, the two first connecting lug plates extend outwards of the column body along two directions respectively, an included angle is formed between the two first connecting lug plates at the moment, the V-shaped steel column is parallel to a horizontal plane, and the upper end of the column body is inclined outwards by about 10 degrees generally; the floor structure is also provided with an embedded plate, and two adjacent embedded grooves are formed in the floor structure so that the embedded plate is stably embedded in the floor structure, and the end face of the embedded plate is just flush with the ground of the embedded grooves; a second connecting lug plate is welded on the section of the embedded plate, 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 drawknot; the two ends of the second connecting piece are hinged with the first connecting lug plate through a pin shaft and the second connecting lug plate respectively, so that correction can be performed in 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 same horizontal plane, just can form the horizontal drawknot this moment, ensure the structural safety and the overall stability after the installation of steel column installation.
Further preferably, the second connecting lug plate is positioned at the center of the embedded plate and is positioned on the transverse central line of the embedded plate; the method is used for improving the stability of the embedded plate.
Further preferably, the embedded plate is provided with an embedded column at one side far away from the column, and the embedded column penetrates into the floor structure; the method is used for improving the stability of the embedded plate.
Further optimizing, a construction method of the V-shaped steel column comprises the following steps:
s1: pouring a floor structure, and embedding an 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 constructing 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 by the temporary support;
s5: then welding a second connecting lug plate on the embedded plate, and respectively pinning the second connecting piece with the first connecting lug plate and the second connecting lug plate;
s6: and (5) removing the temporary support, and finishing the installation of the V-shaped steel column.
Further preferably, the step S1 further includes the following substeps: when the embedded plate is embedded in the floor structure, the axial position of the embedded plate and the perpendicularity of the embedded plate during plate feeding are required 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 substeps of: before the second connecting lug plate is welded, the installation accuracy of the first connecting lug plate and the positioning axis on the embedded plate are required to be wholly retested, and the positioning axis on the embedded plate is required to be corrected according to the actual installation position.
Further optimizing, sequentially arranging a plurality of lifting lugs along the length direction of the column body; the angle adjusting device is used for adjusting the angle of the column body when the column body is hoisted.
Further optimizing, temporary support includes the support body, the support body is fixed in ground, support body top is equipped with the slip location template, the slip location template includes locating platform and sliding plate, the locating platform is fixed in support body top, sliding plate and locating platform sliding connection: the sliding plate can slide along the horizontal projection line direction of the cylinder inclined line; one side of the sliding plate abuts against the column body; one side of the sliding plate is provided with an arc-shaped end face matched with the side face of the column body; for fine tuning the inclination angle of the column.
Further optimized, a jack is fixed on the positioning platform, and the 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 the angle adjusting precision is improved.
Further optimizing, the temporary support is anchored to the ground and the floor structure through a plurality of anchor cables respectively; 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 construction method of a V-shaped steel column, which adopts the scheme that 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 support is connected with the steel column in the installation process of the V-shaped steel column, so that a reliable drawknot is formed between the V-shaped support embedded part and the concrete structure, and the structural safety in the installation process of the steel column and the overall stability after the installation are ensured. And a reference basis is provided for subsequent V-shaped steel column construction and similar engineering 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 needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a schematic structural view of a V-shaped steel column provided by the invention;
FIG. 2 is a schematic view of a V-shaped steel column according to the present invention;
FIG. 3 is a schematic structural view of a pre-buried plate of a V-shaped steel column provided by the invention;
fig. 4 is a schematic structural view 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 provided by the invention;
fig. 6 is a partial schematic view of an installation structure of a V-shaped steel column according to the present invention.
In the drawings, the reference numerals and corresponding part names:
the device comprises a 1-column body, a 2-first connecting piece, a 21-first connecting lug plate, a 3-embedded plate, a 31-second connecting lug plate, a 32-embedded column, a 4-floor structure, a 41-embedded groove, a 5-second connecting piece, a 6-temporary supporting piece, a 7-lifting lug, an 8-supporting frame body, a 9-sliding positioning template, a 91-positioning platform, a 92-sliding plate, a 10-jack and an 11-anchor cable.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Example 1
Embodiment 1 provides a V-shaped steel column, as shown in fig. 1 to 6, comprising:
first connector 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 board 3: the embedded plates 3 are embedded on the floor structure 4, two adjacent embedded grooves 41 are formed in the floor structure 4, the embedded plates 3 are embedded at the bottoms of the two embedded grooves 41, and the second connecting lug plates 31 are fixed on the two embedded plates 3;
second connector 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; both the first and second connecting lugs 21 and 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 structure safety and the stability of the steel column are improved in the installation process, the V-shaped steel column is inclined, the V-shaped steel column is unstable and collapses due to the fact that the V-shaped steel column is slightly carelessly arranged, the V-shaped steel column is provided with the V-shaped steel column, the V-shaped steel column comprises the first connecting piece 2, the embedded plate 3 and the second connecting piece 5, the first connecting piece 2 and the column body 1 are integrally formed to form a stable integral structure, the first connecting piece 2 comprises two first connecting lug plates 21, the two first connecting lug plates 21 extend outwards of the column body 1 along two directions respectively, an included angle is formed between the two first connecting lug plates 21, the two first connecting lug plates are parallel to a horizontal plane, and the upper end of the column body 1 is inclined outwards by about 10 degrees generally; the floor structure 4 is also provided with an 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 face of the embedded plate 3 is just flush with the ground of the embedded grooves 41; a second connecting lug plate 31 is welded on the section of the embedded plate 3, and 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 lug plate 21 through a pin shaft and a second connecting lug plate 31, and can be corrected in a reliable range so as 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 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 connection lug plate 31 is located at the center of the pre-buried plate 3 and is located on the transverse center line of the pre-buried 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 second connecting lug plate 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 adopted, and the accuracy of the installation position of the retest structure, such as adjustment caused by out-of-tolerance, is adjusted, and welding is performed after the second connecting lug plate is qualified; the welding between the second connection lug plate 31 and the embedded part is performed by adopting 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 quantity is controlled in the welding process, so that the concrete structure is prevented from being damaged by welding.
In this embodiment, a pre-buried column 32 is provided on a side of the pre-buried plate 3 away from the column 1, and the pre-buried column 32 extends into the floor structure 4; in order to improve the stability of the embedded plate 3, in the scheme, the embedded plate 3 is also provided with the embedded column 32, wherein the embedded plate 3 comprises two mutually parallel annular plates, the two annular plates are fixed through a plurality of anchor bolts and then are arranged in a bearing platform reinforcement cage, and embedded part anchor bolts and the annular plates are all processed and manufactured in factories; after the fixing bracket is accurately positioned by using a positioning line and a level gauge, the fixing bracket is fixed with a reinforcement cage in a concrete bearing platform; then concrete pouring is carried out to form an embedded plate 3, and an anchor bolt is fixedly connected with the embedded column 32 beyond the bearing table surface on the bearing table surface to form a stable structure; the embedded column 32 is inserted into a civil engineering reinforcement cage for installation and positioning, and the axial position and the plate feeding verticality of the embedded plate 3 are required to be positioned, namely, when the embedded column 32 is extended, the embedded plate 3 is required to be vertically fed, and the embedded plate is fixed by the temporary supporting piece 6.
Example 2
This embodiment 2 is further optimized on the basis of embodiment 1, and as shown in fig. 5, a construction method of a V-shaped steel column is provided, which includes the following steps:
s1: pouring a floor structure 4, and embedding the embedded plates 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 by the temporary support;
s5: then welding a second connecting lug plate 31 on the embedded plate 3, and respectively pinning the second connecting piece 5 with the first connecting lug plate 21 and the second connecting lug plate 31;
s6: and (5) removing the temporary support, and finishing the installation of the V-shaped steel column.
In this embodiment, the step S1 further includes the following substeps: when the embedded plate 3 is embedded in the floor structure 4, the axial position of the embedded plate 3 and the perpendicularity during plate feeding are required 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 substeps: before the second connection lug plate 31 is welded, the installation accuracy of the first connection lug plate 21 and the positioning axis on the embedded plate 3 are required to be wholly retested, and the positioning axis on the embedded plate 3 is required to be corrected according to the actual installation position.
The specific working principle of the scheme is as follows: firstly, in step S1, a pouring floor structure 4 is installed, and in the pouring process, an embedded plate 3 is required to be buried, wherein the embedded plate 3 is formed by fixing an anchor bolt by adopting two annular plates, installing the anchor bolt in a bearing platform reinforcement cage, processing and manufacturing all the embedded part anchor bolt and the annular plates in a factory, accurately positioning a fixing support by utilizing a positioning line and a level gauge, fixing the fixing support with the reinforcement cage in a concrete bearing platform, and checking the embedded part at any time when the concrete pouring construction is performed, so that the positioning axis of the support is required not to deviate. The lower adjusting bolts are adjusted to be in place, the elevation of each positioning bolt is retested, the machined embedded steel rib columns, the embedded plates and the civil engineering steel reinforcement cage are installed and positioned, the axial position of the embedded plates 3 and the perpendicularity of the embedded plates are required to be positioned, the temporary supporting pieces 6 are used for fixing, the relative positions of the embedded plates 3, particularly the perpendicularity of the embedded plates 3, are checked at any time in the concrete pouring construction process of the steel rib beams, and the installation center position line of the V-shaped supporting connecting plates is drawn after construction. In the step S2, when the steel column is installed and prepared, the concrete construction measures are as follows: positioning a bearing platform on the column foot section by section, positioning the axial positions of the steel column in two directions by adopting a theodolite, and temporarily fixing by using bolts; the steel column embedded section controls the plane position and the vertical elevation of the steel column through an adjusting nut on the anchor bolt, and the fixing nut and the adjusting nut are screwed up; after the steel column is positioned, immediately performing pressure grouting on the lower part of the bottom of the column, and simultaneously monitoring the position size and elevation of the steel column to ensure that the steel column is not influenced by grouting; and (3) the construction of the steel column foot section coated with concrete, and simultaneously, the central size and elevation of the top of the steel column are monitored in real time in the concrete construction process. And then, step S3, constructing a temporary support, hoisting a steel column, arranging a hoisting point at a pre-welded connecting lug plate, and hoisting by adopting a single machine rotation method by adopting a special hoisting tool for clamping in order to prevent deformation of the lifting lug 7 during hoisting. Before hoisting, the steel column should be padded with sleepers to avoid contact between the bottom of the column and the ground during hoisting, and the phenomenon that the end of the column is pulled on the ground during hoisting is avoided; the temporary assembly type operation platform is used for assembling a steel crawling ladder and installing a steel beam before hoisting the steel column, and can be used for disassembling and transposition and steel beam installation and column butt joint; in the hoisting process of the steel column, the steel column is 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 the designed elevation value, and considering the shrinkage and compression deformation of the welding line. The elevation deviation is adjusted 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 a jack 10 on the side surface of the column shaft; after hoisting in place, carrying out integral welding on the steel column, symmetrically welding by adopting a plurality of welders, carrying out integral measurement and acceptance after welding, and submitting to supervision after meeting the requirements; the installation of basement roof and 13.9 meters elevation above steel column adopts 150 tons crawler crane and 75 tons car to hang and installs on the structure floor, in order to guarantee the safety of having accomplished concrete structure, sets up the steel road bed case on the crane walking route, and the road bed case four corners supports on floor beam column structure, avoids the floor to destroy. Finally, step S4 and step S5 are carried out, V-shaped steel columns are installed, steel columns are inclined outwards for 10 degrees at the periphery of the finger corridor and the hall, temporary supports are required to be arranged before the inclined columns are installed in consideration of the fact that the weight of the inclined columns is heavy and the length of the inclined columns is long, cable ropes are arranged on the temporary supports, one side of each cable rope is fixed with a building surface additionally, the other side of each cable rope is fixed with a ground anchor, and a sliding positioning template 9 is installed at the upper end of each cable rope; 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 inclined column is positioned conveniently; preliminary positioning is carried out on the inclined column, the lower end column foot section and the temporary support, and the temporary support cable rope is adjusted to ensure the stability of the temporary support; after the preliminary positioning of the inclined column, accurately positioning the inclined column through a lower-end horizontal and vertical adjusting device and an upper-end movable template, welding after positioning, and installing a horizontal V-shaped support in time after welding; the mounting technology and the measure for mounting the V-shaped support comprise the following steps: before the V-shaped support of the steel column is installed, the installation precision of the V-shaped support lug plate of the steel column and the positioning axis on the 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 structure installation actual 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. And (3) positioning and connecting the side ear plate of the V-shaped embedded part with the embedded part, wherein spot welding is adopted for positioning during positioning, and the accuracy of the installation position of the structure is measured again, if the accuracy exceeds the tolerance, the structure is adjusted, and welding is carried out after the structure is qualified. The lug plate and the embedded part are welded by adopting 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, especially welding shrinkage deformation, on the installation accuracy of the structural column is reduced. Controlling the welding heat input amount in the welding process, and preventing the concrete structure from being damaged by welding; and after the V-shaped support is installed, retesting the installation accuracy of the steel column.
Example 3
This example 3 was further optimized on the basis of example 2 as another embodiment.
In this embodiment, a plurality of lifting lugs 7 are sequentially arranged along the length direction of the column 1; for when hoist and mount cylinder 1, adjust the angle of 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 hoist and mount, adopt the installation angle of chain block regulation cylinder 1 before hoist and mount, convenient location.
In this embodiment, temporary support includes support body 8, support body 8 is fixed in ground, support body 8 top is equipped with slide positioning template 9, slide positioning template 9 includes locating platform 91 and sliding plate 92, locating platform 91 is fixed in support body 8 top, sliding plate 92 and locating platform 91 sliding connection: the sliding plate 92 can slide along the horizontal projection line direction of the inclined line of the column 1; one side of the sliding plate 92 abuts against the column 1; one side of the sliding plate 92 is provided with an arc-shaped end face matched with the side face 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 and leans against the temporary support, and the column body 1 is supported by the temporary support; the support frame body 8 is provided with a protective railing, a cat ladder and the like, so that the operation of staff is facilitated; the top of the support frame body 8 is provided with a sliding positioning template 9, 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 arranged 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 face at one side, the arc-shaped end face 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 inclination angle of the column 1 can be finely adjusted.
In this embodiment, the positioning platform 91 is fixed with a jack 10, and a telescopic end of the jack 10 is used for driving the sliding plate 92 to slide; the sliding plate 92 is used for controlling the sliding of the sliding plate 92, so that the angle adjusting precision is improved, wherein the jack 10 is an electric jack 10, and the sliding plate 92 is driven to slide by intelligently controlling the lifting of the jack 10, so that the angle position of the column body 1 is adjusted.
In this embodiment, the temporary support is anchored to the ground and floor structure 4 by a plurality of anchor lines 11, respectively; for improving the stability of the temporary stent; wherein the anchor cable 11 is a cable rope, and embedded parts are additionally arranged on the ground and the floor structure 4 for fixation.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The construction method of the V-shaped steel column is characterized in that the V-shaped steel column comprises the following steps:
first connector (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 board (3): the embedded plates (3) are embedded on the floor structure (4), two adjacent embedded grooves (41) are formed in the floor structure (4), the embedded plates (3) are embedded at the bottoms of the two embedded grooves (41), and the second connecting lug plates (31) are fixed on the two embedded plates (3);
second connector (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 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;
the method also comprises 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 hung 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 pinning the second connecting piece (5) with the first connecting lug plate (21) and the second connecting lug plate (31);
s6: removing the temporary support, and finishing the installation of the V-shaped steel column;
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 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), and the sliding plate (92) and the positioning platform (91) are in sliding connection: 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) abuts against the column body (1); one side of the sliding plate (92) is provided with an arc-shaped end face matched with the side face of the column body (1).
2. The construction method of the V-shaped steel column according to claim 1, wherein the second connecting lug plate (31) is positioned at the center of the embedded plate (3) and is positioned on the transverse center line of the embedded plate (3).
3. The construction method of the V-shaped steel column according to claim 1, wherein the embedded plate (3) is provided with an embedded column (32) on one side far away from the column body (1), and the embedded column (32) penetrates into the floor structure (4).
4. The construction method of a V-shaped steel column according to claim 1, wherein the step S1 further comprises the sub-steps of: when the embedded plate (3) is embedded in the floor structure (4), the axial position of the embedded plate (3) and the perpendicularity of the embedded plate during plate feeding are required to be checked and positioned at any time, and the embedded plate is supported and fixed through the temporary supporting piece (6).
5. The construction method of a V-shaped steel column according to claim 1, wherein the step S5 further comprises the sub-steps of: before the second connecting lug plate (31) is welded, the installation accuracy of the first connecting lug plate (21) and the positioning axis on the embedded plate (3) are required to be integrally retested, and the positioning axis on the embedded plate (3) is required to be corrected according to the actual installation position.
6. The construction method of the V-shaped steel column according to claim 1, wherein a plurality of lifting lugs (7) are sequentially arranged along the length direction of the column body (1).
7. The construction method of the V-shaped steel column according to claim 1, wherein a jack (10) is fixed on the positioning platform (91), and the telescopic end of the jack (10) is used for driving the sliding plate (92) to slide.
8. The construction method of a V-shaped steel column according to claim 1, wherein the temporary support is anchored to the ground and floor structure (4) by means of a plurality of anchor lines (11), respectively.
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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 |
| CN116122602B (en) * | 2023-04-07 | 2023-06-20 | 北京城建集团有限责任公司 | V-shaped column auxiliary debugging and installing system and using method |
| CN116517122B (en) * | 2023-07-03 | 2023-09-22 | 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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