CN115012585B - Lattice steel column for unequal-altitude multi-span factory building and assembly method thereof - Google Patents
Lattice steel column for unequal-altitude multi-span factory building and assembly method thereof Download PDFInfo
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- CN115012585B CN115012585B CN202210761322.2A CN202210761322A CN115012585B CN 115012585 B CN115012585 B CN 115012585B CN 202210761322 A CN202210761322 A CN 202210761322A CN 115012585 B CN115012585 B CN 115012585B
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a lattice steel column for a multi-span factory building with different heights, which comprises an upper column and a lower column, wherein the bottom end of the upper column is connected with the top end of the lower column, the bottom end of the lower column is fixed with the ground, the top end of the upper column is bent left in the transverse direction to form a left connecting section for connecting with a roof beam of the left-span factory building, the top end of the lower column is provided with roof beam corbels protruding right in the transverse direction, and the roof beam corbels are used for connecting with the roof beam of the right-span factory building; the application of the lattice steel column in the unequal-height multi-span steel structure factory building can be met in the production and manufacturing process, the structure of the lattice steel column can be adjusted according to the characteristics of the steel structure factory building, the application space of the lattice steel column is improved, and the structural stability of the lattice steel column after the unequal-height multi-span steel structure factory building is connected is guaranteed.
Description
Technical Field
The invention relates to the field of building components, in particular to a lattice steel column for a multi-span factory building with different heights and an assembly method thereof.
Background
In various steel structure factory building structures, generally, the application of a novel lattice steel column with an asymmetric structure is wider, roof beams with larger span and weight are required to be connected, crane beams of a multi-span factory building are connected, the connection strength and quality of the steel column and other structures are ensured, the multifunctional use of the factory building is also met, currently, two lattice steel columns which are arranged in a back direction or a reinforcing structure is additionally arranged for improving the supporting strength of the lattice steel column to realize the application of the lattice steel column in the steel structure factory building, but a mode of adding welding reinforcing pieces is generally adopted for increasing the structural strength of the lattice steel column, and the application of the lattice steel column in the multi-span steel structure factory building is not facilitated because of the increase of the defect positions of the lattice steel pieces although the cost is low.
Therefore, in order to solve the above problems, a lattice steel column for a multi-span factory building with different heights and an assembling method thereof are needed, so that the application of the lattice steel column in the multi-span factory building with different heights can be met in the production and manufacturing process, the structure of the lattice steel column can be adjusted according to the characteristics of the steel structure factory building, the application space of the lattice steel column is improved, and the structural stability of the lattice steel column after being connected in the multi-span factory building with different heights is ensured.
Disclosure of Invention
In view of the above, the invention aims to overcome the defects in the prior art, and provides a lattice steel column for a multi-span factory building with unequal heights and an assembly method thereof, which can meet the requirement of the application of the lattice steel column in the multi-span steel structure factory building with unequal heights in the production and manufacturing process, can adjust the structure of the lattice steel column according to the characteristics of the steel structure factory building, improve the application space of the lattice steel column, and ensure the structural stability of the lattice steel column after being connected in the multi-span steel structure factory building with unequal heights.
The lattice steel column for the multi-span factory building with different heights comprises an upper column and a lower column, wherein the bottom end of the upper column is connected to the top end of the lower column, the bottom end of the lower column is fixed with the ground, the top end of the upper column is bent left along the transverse direction to form a left connecting section for connecting with a roof beam of the left-span factory building, the top end of the lower column is provided with roof beam corbels protruding right along the transverse direction, and the roof beam corbels are used for connecting with the roof beam of the right-span factory building.
Further, the top of lower post is equipped with crane beam backing plate, crane beam backing plate is used for placing the main crane beam of left side span factory building, the bottom of upper column is located between crane beam backing plate and roofing Liang Niu leg.
Further, the middle part of lower column direction of height is equipped with left bracket that strides, left bracket that strides is located the horizontal left side of lower column, left bracket that strides is used for placing the secondary crane roof beam that strides the factory building on a left side.
Further, the middle part of lower column direction of height is equipped with the right bracket of striding, the bracket is located the horizontal right side of lower column strides to the right, the bracket is used for placing the right crane beam of striding the factory building.
Further, the left-span bracket and the right-span bracket are arranged in a staggered manner in the height direction.
Further, the lower column is fixed on the bottom surface through a column bottom connecting assembly.
Further, the upper column comprises a straight section web, a bent section web, an inner flange and an outer flange, wherein the straight section web connects the bent section web with the lower column, the inner flange comprises a straight section left flange covering the transverse left edge of the straight section web and a straight section right flange covering the transverse right edge of the straight section web, and the outer flange comprises an upper flange covering the upper edge of the height direction of the bent section web and a bent section flange covering the lower edge of the height direction of the bent section web.
Further, the upper flange is vertically connected with the right flange of the straight section.
Further, the lower column comprises H-shaped steel arranged at the transverse left end and channel steel arranged at the transverse right end; and a plurality of reinforcing structures are arranged between the H-shaped steel and the channel steel.
Further, the H-shaped steel and the channel steel are separated into a plurality of manholes through a plurality of reinforcing structures.
The invention also discloses an assembling method based on the lattice steel column for the multi-span factory building with different heights, which is characterized by comprising the following steps of: the method comprises the following steps:
S1, correspondingly assembling an upper column and a lower column respectively;
s2, correspondingly assembling the upper column and the lower column into a lattice steel column whole;
the manufacturing process of the upper column in the step S1 mainly comprises bending of arc flanges, assembling of a web plate, upper and lower flanges and an upper flange, and welding; the manufacturing process of the lower column is that after H-shaped steel is placed in alignment by taking a web plate of channel steel as a reference surface, a part plate of a column bottom connecting assembly is firstly installed, then each sharp beam structure, various supports and brackets are gradually installed from the column top to the column bottom, and after the lower column is assembled, welding of welding seams is gradually completed.
The beneficial effects of the invention are as follows: the invention discloses a lattice steel column for a multi-span factory building with different heights, which has an asymmetric structure in the composition form, can be used for loading a plurality of crane beams on the steel column, and can meet the use of various lifting equipment of the multi-span factory building; the manhole has a plurality of manholes, and each operator can have a plurality of operation ways and ways for overhauling equipment in the use process; roof beams with different heights can be respectively connected to two sides of the steel column.
Drawings
The invention is further described below with reference to the accompanying drawings and examples:
FIG. 1 is a schematic view of the assembled structure of the upper column of the present invention;
FIG. 2 is a schematic view of the assembly structure of the lower column of the present invention;
FIG. 3 is a schematic view of the attachment assembly structure of the lower column of the present invention;
FIG. 4 is a schematic diagram of the structure of the present invention;
Fig. 5 is a schematic view of the structure of the turnbuckle of the present invention.
Detailed Description
Fig. 1 is a schematic structural diagram of the present invention, as shown in the drawing, a lattice steel column for a multi-span plant with unequal heights in this embodiment includes an upper column and a lower column, the bottom end of the upper column is connected to the top end of the lower column, the bottom end of the lower column is fixed to the ground through a column bottom connecting component 15, the top end of the upper column is bent left in the transverse direction to form a left connecting section for connecting with a roof beam of the left-span plant, the top end of the lower column is provided with roof beam corbels 19 protruding right in the transverse direction, and the roof beam corbels 19 are used for connecting with the roof beam of the right-span plant. As shown in the figure, the upper column and the lower column are separately manufactured and are subsequently installed and fixed to form a lattice steel column whole, so that the lattice steel column in the scheme can be directly applied to a multi-span factory building with equal height or a multi-span factory building with unequal height, the convenience in use of the lattice steel column is improved due to the split structure, reasonable selective application can be carried out on the position to be supported, and the universality in use of the lattice steel column is improved.
In this embodiment, the top of lower post is equipped with crane beam backing plate 23, crane beam backing plate 23 is used for placing the main crane beam of left side span factory building, crane beam backing plate 23's effect lies in improving the support strength to main crane beam, the bottom of going up the post is located between crane beam backing plate 23 and roofing beam bracket 19 for it can be more stable with lower post connection assembly formation whole to go up the post.
In this embodiment, a left bracket 17 is disposed in the middle of the lower column in the height direction, the left bracket 17 is located at the left side of the lower column in the transverse direction, and the left bracket 17 is used for placing a secondary crane beam of the left-span factory building; a right span bracket 18 is arranged in the middle of the lower column in the height direction, the right span bracket 18 is positioned on the right side of the lower column in the transverse direction, and the right span bracket 18 is used for placing a crane beam of a right span factory building; the left span bracket 17 and the right span bracket 18 are arranged in a staggered manner in the height direction. As shown in the figure, the left bracket 17 and the right bracket 18 are respectively arranged at two sides of the lattice steel column and are connected in a staggered manner in the height direction, so that the versatility of using the lattice steel column can be improved, and the utilization rate of field resources can be improved.
In this embodiment, the lower column is fixed to the bottom surface by a column bottom connecting assembly 15. And the fixing stability of the integral lattice steel column is improved.
In this embodiment, as shown in the drawing, the upper column includes a straight section web 4, a curved section web 6, an inner flange and an outer flange, the straight section web 4 connects the curved section web 6 with the lower column, the inner flange includes a straight section left flange 5 covering a lateral left edge of the straight section web 4 and a straight section right flange 3 covering a lateral right edge of the straight section web 4, and the outer flange includes an upper flange 8 covering an upper edge of the curved section web 6 in a height direction and a curved section flange 7 covering a lower edge of the curved section web 6 in a height direction; the upper flange 8 is vertically connected with the right flange 3 of the straight section; the structure is reinforced while the weight of the structure is reduced.
In this embodiment, the lower column includes an H-shaped steel 12 disposed at a lateral left end and a channel steel 11 disposed at a lateral right end; a plurality of reinforcing structures are arranged between the H-shaped steel 12 and the channel steel 11; the H-section steel 12 and the channel steel 11 are separated into a plurality of manholes 22 through a plurality of reinforcing structures. In this solution, the several reinforcing structures are not identical in structure, and mainly include a top spike 13, a diagonal bracing assembly 14, a supporting spike 16, a bracket spike 20 and a manhole spike 21; the corresponding functions and structures are enhanced, and are not described in detail herein.
The invention also discloses an assembling method based on the lattice steel column for the multi-span factory building with different heights, which is characterized by comprising the following steps of: the method comprises the following steps:
S1, correspondingly assembling an upper column and a lower column respectively;
s2, correspondingly assembling the upper column and the lower column into a lattice steel column whole;
in the step S1, the manufacturing process of the upper column mainly comprises bending of an arc flange, assembling of a web plate, upper and lower flanges and an upper flange 8, and welding; the manufacturing process of the lower column is that after H-shaped steel 12 is placed in alignment by taking a web plate of channel steel 11 as a reference surface, a part plate of a column bottom connecting assembly 15 is firstly installed, then each sharp beam structure, various supports and brackets are gradually installed from the column top to the column bottom, and after the lower column is assembled, welding of welding seams is gradually completed.
The steel column is formed by connecting an upper column and a lower column, wherein the upper column is used for connecting a left-span factory building face beam, the lower column is used for placing a crane beam as a main body structure, a pavement plate can be paved on two manhole pointed beams 21 arranged in the middle of the lower column, and when the steel column is used in a factory, personnel can walk through a steel column manhole 22;
The web plate of the upper column is of a big-end-small structure, the lower end of the straight web plate 4 is used for being connected with the lower column, and the upper end of the bent web plate 6 is left to be used for being connected with a left-span factory building face beam; the left edge of the bending web 6 is in an arc-shaped structure, and the right edge of the bending web 6 is in a straight line and is vertical to the horizontal plane; the edges of the straight web 4 and the bent web 6 are covered with corresponding flanges except for the positions for connecting the left cross factory building face beam and the lower column;
the lower column takes H-shaped steel 12 and channel steel 11 as main body supporting structures, and the H-shaped steel 12 and the channel steel 11 are connected by a plurality of sharp beam structures (top sharp beam 13, supporting sharp beam 16, bracket sharp beam 20 and the like) and diagonal bracing connecting components 14; the flange which is straight and vertical to the right end of the upper column straight section web 4 is connected with the upper end extension surface of the web of the channel steel 11 of the lower column; the left side of the upper column bending section web plate 6 is used for connecting a roof beam of a left-span factory building;
In the main structure of the lower column, a crane beam backing plate 23 is arranged above a column top plate at the top of the H-shaped steel 12 and is used for placing a main crane beam of a left-span factory building; in the main structure of the lower column, a roof beam bracket 19 is arranged on one side of a web plate at the top of the channel steel 11 and is connected with the channel steel 11, and the roof beam bracket 19 is used for connecting a roof beam of a right-span factory building; in the main structure of the lower column, the middle part of the H-shaped steel 12 is close to the left side of the steel column, and a left-span bracket 17 is arranged to be connected with the H-shaped steel 12 and used for placing a secondary crane beam of a left-span factory building; in the main structure of the lower column, the middle part of the channel steel 11 is close to the right side of the steel column, and a right span bracket 18 is arranged to be connected with the channel steel 11 and used for placing a crane beam of a right span factory building; at the bottom of the lower column, the bottoms of the H-section steel 12 and the channel steel 11 are designed with a column bottom connecting assembly 15, and the column bottom connecting assembly 15 is used for connecting with the concrete on the ground.
The invention comprises the following implementation steps:
1. The lattice steel column in the scheme is of an asymmetric structure, and is manufactured by processing an upper column and a lower column, and then the upper column and the lower column are connected into a steel column whole; the manufacturing process of the upper column mainly comprises bending of an arc-shaped flange, assembling of a web plate, the upper flange, the lower flange and the upper flange 8, and welding; the manufacturing process of the lower column is that after H-shaped steel 12 is placed in alignment by taking a web plate of channel steel 11 as a reference surface, a part plate of a column bottom connecting assembly 15 is firstly installed, then each sharp beam structure, various supports and brackets are gradually installed from the column top to the column bottom, and after the lower column is assembled, welding of welding seams is gradually completed. After the upper column and the lower column are welded respectively, the butt joint process is finished finally, and the upper column and the lower column are welded into a whole;
The lattice steel column with the asymmetric structure is characterized in that a plurality of crane beams can be loaded on the steel column, and the use of various lifting equipment of a multi-span factory building is satisfied; the steel column has a plurality of manholes 22, and each operator can walk among the steel columns in a plurality of ways in the use process, namely different operation ways or ways for overhauling equipment are provided; in addition, roof beams with different heights can be respectively connected to two sides of the steel columns, so that the application in the multi-span factory buildings with different heights is realized, and the problem that the lattice steel column structure is unstable due to large occupied space of a plurality of lattice steel columns and a single lattice steel column reinforcement is solved;
in this scheme, the manufacturing process of upper column structure includes following steps:
the manufacturing process of the upper column is simpler: (1) Firstly, abutting a straight section right flange 3 beside a baffle plate 2 on an I-steel platform 1, fixing the straight section right flange 3 by spot welding, checking the perpendicularity of the straight section right flange 3 with a horizontal plane by using a suspending line, applying cushion blocks at two ends of the straight section right flange 3, leveling the height of the cushion blocks with the central line of the height of the straight section right flange 3, drawing lines on the central line, aligning a straight section web 4 with the line drawing position by using suspending equipment on the basis of the cushion blocks, continuously adjusting the suspending height in suspension, ensuring the plane of the whole straight section web 4 to be basically horizontal with the ground, and slightly fixing the straight section right flange 3 with the straight section web 4 by spot welding; (2) Aligning the central line of the straight section left flange 5 in the height direction with the straight section web 4, and slightly fixing the straight section left flange 5 and the straight section web 4 by spot welding; (3) The small end of the bent section web 6 is lifted to be aligned with the straight section web 4, and the process of installation and spot welding is completed in the same way; (4) The bending section flanges 77 and the upper flanges 8 are then respectively lifted, and the process of installation and spot welding is completed in a similar manner to the previous one; (5) Finally, installing the upper column bracket 9 and various stiffening plates in a line drawing and positioning mode, and fixing by spot welding; and finally, the upper column is moved into a welding working section, and the welding of each welding seam is completed.
2. The assembly process of the lower column structure is as follows:
(1) Firstly, welding a baffle plate 2 on the rear of a plurality of I-steel platforms 1 prepared in advance in a workshop, wherein the length direction of the baffle plate 2 is parallel to the length direction of the I-steel platforms 1, each I-steel platform 1 is welded with one baffle plate 2, and each baffle plate 2 is parallel to each other and is overlapped in position in the direction vertical to the length direction of the I-steel platform 1;
In order to ensure the positioning effect and the quality of the baffle plate 2, the baffle plate 2 is made of a steel plate with delta=20mm, and the thickness of the baffle plate 2 is equal to or greater than the web height of the 3/4 channel steel 11.
(2) The method comprises the steps that channel steel 11 welded by submerged arc welding in advance is placed above a plurality of I-steel platforms 1, the length direction of the channel steel 11 is perpendicular to the length direction of the I-steel platforms 1, the height direction of a web plate of the channel steel 11 is perpendicular to the ground, the lower flange of the channel steel 11 is abutted against the upper flange 8 of the I-steel platform 1, and the web plate is abutted against one side of the thickness of a baffle plate 2;
(3) The two ends of the turnbuckle 10 are welded on the webs of the I-steel platform 1 and the channel steel 11 respectively, the lifting hook direction of the turnbuckle is welded on the flange of the I-steel platform 1, the circular ring direction of the turnbuckle is welded on the web, each I-steel platform 1 is welded with one turnbuckle 10, the length direction of the turnbuckle 10 is guaranteed to be parallel to the length direction of the I-steel platform 1, and the height of the circular ring is guaranteed to be greater than or equal to the height of the web of the channel steel 11 with the height of about 3/4.
In the concrete implementation, an operator rotates the turnbuckle in the middle of the turnbuckle 10 clockwise along the direction of the channel steel 11, and the hooks and the circular rings at the two ends of the turnbuckle 10 shrink towards the middle turnbuckle due to the structure that the screws at the two sections of the turnbuckle are matched with the threaded holes of the turnbuckle while rotating, so that the channel steel 11 is tightly abutted against the baffle plate 2 and the I-steel platform 1;
(5) The operator places the H-shaped steel 12 welded by submerged arc welding in advance on one side of the channel steel 11, the direction of the H-shaped steel is parallel to the channel steel 11, various part plates of a column bottom connecting assembly 15 at the tail part of the H-shaped steel 12 are firstly assembled in a line drawing positioning mode, and the part plates are sequentially fixed by spot welding; the H-section steel 12 is also assembled on the i-section steel platform 1 through a plurality of turnbuckle screws 10 according to the fixing mode of the channel steel 11, which is not described herein,
(4) An operator firstly installs various part plates of a column bottom connecting assembly 15 at the tail part of the channel steel 11 in a line drawing positioning mode by taking a web plate of the channel steel 11 as a reference surface, and sequentially fixes the part plates by spot welding;
(6) An operator takes a web plate of a channel steel 11 as a reference surface, moves H-shaped steel 12 to be parallel to the channel steel 11 from the head end of the channel steel 11, aligns the column bottom plate position of the channel steel 11 with the column bottom plate position of the H-shaped steel 12 in the direction vertical to the length of an I-shaped steel platform 1, firstly installs various partition plates and rib plates of a top sharp beam 13 system structure of a lattice steel column in a line drawing positioning mode, and completes the process of spot welding fixation between the top sharp beam 13 and the channel steel 11, wherein the H-shaped steel 12 is not completely closed and spot welded with the top sharp beam 13;
(7) After the assembly of the top sharp beam 13 of the lattice steel column is completed, various rib plates and partition plates of the rear supporting sharp beam 16, the bracket sharp beam 20 and other system structures are assembled in sequence in the same mode along the straight line direction from the column top to the column bottom by using the web plate of the channel steel 11 as a reference surface, and at the moment, all the sharp beam structures are only spot-welded with the channel steel 11, and the H-shaped steel 12 is not completely close to the channel steel 11 and is not spot-welded;
When the method is implemented, when various rib plates and partition plates are installed, if collision to the top of the web plate occurs in the process of adjusting the various rib plates and the partition plates from top to bottom, the deformation of the web plate or the flange can be corrected by using a simple knocking mode after local flame heating due to the traction effect of the turnbuckle screws 10, and the assembly quality of the lattice steel column is not influenced;
(9) The operator takes the web plate of the channel steel 11 as a reference surface, after the assembly of each sharp beam part is completed, the H-shaped steel 12 and each rib plate baffle plate are fixed by spot welding, and finally the column top plate at the top of the lower column is fixed by spot welding;
(10) The operator then completes the installation of each diagonal bracing connection assembly 14 in sequence along the straight line direction from the column top to the column bottom, and fixes it by spot welding;
(11) Then, an operator rotates the turnbuckle of the turnbuckle 10 anticlockwise, and melts the connection points of the turnbuckle 10, the channel steel 11 and the I-steel platform 1 by acetylene flame, and after the turnbuckle 10 is dismantled, a plurality of brackets positioned on two sides of the H-shaped steel 12 and the channel steel 11 are gradually installed;
(12) Finally, moving the assembled lower column structure to a welding section, and completing welding of the lower column structure by the existing welding process and welding sequence;
3. Connect the upper column and the lower column that the welding is accomplished respectively, this steel column's characteristics and advantage lie in: the crane beam backing plate 23 at the top of the H-shaped steel 12 serving as a main structure is used as the installation position of the main crane beam, and the H-shaped steel 12 is of a symmetrical structure, so that the stability is higher, and the maximum load of the main crane beam can be ensured; the top of the channel steel 11 is a small head of the H-shaped steel 12 of the upper column, the right flange 3 of the straight section of the upper column, which is in straight line and vertical, is connected with the extending surface of the upper end of the web plate of the channel steel 11 of the lower column, when the bent section web plate 6 of the upper column is connected with a roof beam, the small head of the H-shaped steel 12 of the upper column applies a tensile stress which is inclined upwards to the left to one side of the channel steel 11 of the lower column, so that the tensile stress is applied to the web plate of the channel steel 11, and in view of the asymmetric structure of the channel steel 11, only the web plate of the channel steel 11 is used as a supporting structure, the plasticity and the toughness of the channel steel 11 are obviously superior to those of one side of the H-shaped steel 12, so that one side of the channel steel 11 can effectively bear the tensile stress after the upper column is connected with the roof beam, and the structural stability of the channel steel is ensured after the channel steel is put into use; the H-shaped steel 12 and the channel steel 11 are used as main body supporting structures, and the structural strength of the steel column is effectively improved by a system of connecting a top sharp beam 13 and other sharp beam structures with the diagonal bracing connecting assembly 14.
4. Roof beam corbel 19 that is located the right side of lower column top can connect the right side and stride the lower roof beam of factory building height, and the right side that is located channel-section steel 11 strides corbel 18 and can bear the right side and stride the crane beam of factory building, and the left side that is located H shaped steel 12 middle part strides corbel 17 can bear the left side and stride the secondary crane beam of factory building, and the crane beam can be used for lifting by crane equipment. The left side at the top of the upper column bending web 6 will be connected with the roof beam of the left-span factory building, while the upper column bracket 9 in the middle of the upper column will be connected with the top of the main crane beam carried by the lower column, so as to improve the structural stability of the whole lattice steel column after being put into use. The load of the left bracket 17 of the H-beam 12 will be greater than that of the right bracket 18 of the channel beam 11 due to the longer weld length and higher connection strength of the two brackets located in the middle of the lower column. The two manhole pointed beams 21 arranged in the middle of the lower column can be paved with a pavement plate, and the upper parts of the two manhole pointed beams 21 are the human holes 22, so that people can walk through the steel column manhole 22 when the factory building is used.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (6)
1. The method for assembling the lattice steel column for the unequal-height multi-span factory building is characterized by comprising the following steps of: the lattice steel column for the unequal-altitude multi-span factory building comprises an upper column and a lower column, wherein the bottom end of the upper column is connected to the top end of the lower column, the bottom end of the lower column is fixed with the ground, the top end of the upper column is bent left in the transverse direction to form a left connecting section for being connected with a left-span factory building roof beam, the top end of the lower column is provided with roof beam corbels protruding right in the transverse direction, and the roof beam corbels are used for being connected with a right-span factory building roof beam; the top end of the lower column is provided with a crane beam base plate, the crane beam base plate is used for placing a main crane beam of a left-span factory building, and the bottom end of the upper column is positioned between the crane beam base plate and a roof beam bracket; a left-span bracket is arranged in the middle of the lower column in the height direction, and is positioned at the left side of the lower column in the transverse direction, and is used for placing a secondary crane beam of a left-span factory building; the middle part of the lower column in the height direction is provided with a right span bracket, the right span bracket is positioned on the right side of the lower column in the transverse direction, and the right span bracket is used for placing a crane beam of a right span factory building; the left bracket and the right bracket are arranged in a staggered manner in the height direction;
The method also comprises the following assembly steps:
S1, correspondingly assembling an upper column and a lower column respectively;
s2, correspondingly assembling the upper column and the lower column into a lattice steel column whole;
The manufacturing process of the upper column in the step S1 mainly comprises bending of arc flanges, assembling of a web plate and upper and lower flanges, and welding; the manufacturing process of the lower column is that after H-shaped steel is placed in alignment by taking a web plate of channel steel as a reference surface, a part plate of a column bottom connecting assembly is firstly installed, then each sharp beam structure, various supports and brackets are gradually installed from the column top to the column bottom, and after the lower column is assembled, welding of welding seams is gradually completed.
2. The method for assembling the lattice steel column for the unequal-height multi-span factory building according to claim 1, wherein the method comprises the following steps: the lower column is fixed on the ground through a column bottom connecting assembly.
3. The method for assembling the lattice steel column for the unequal-height multi-span factory building according to claim 2, wherein the method comprises the following steps: the upper column comprises a straight section web, a bent section web, an inner side flange and an outer side flange, wherein the straight section web connects the bent section web with the lower column, the inner side flange comprises a straight section left flange covering the transverse left edge of the straight section web and a straight section right flange covering the transverse right edge of the straight section web, and the outer side flange comprises an upper flange covering the upper edge of the height direction of the bent section web and a bent section flange covering the lower edge of the height direction of the bent section web.
4. The method for assembling a lattice steel column for non-uniform height multi-span workshops according to claim 3, wherein: the upper flange is vertically connected with the right flange of the straight section.
5. The method for assembling the lattice steel column for the unequal-height multi-span factory building according to claim 4, wherein the method comprises the following steps: the lower column comprises H-shaped steel arranged at the transverse left end and channel steel arranged at the transverse right end; and a plurality of reinforcing structures are arranged between the H-shaped steel and the channel steel.
6. The method for assembling the lattice steel column for the unequal-height multi-span factory building according to claim 5, wherein the method comprises the following steps: the H-shaped steel and the channel steel are separated into a plurality of manholes through a plurality of reinforcing structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210761322.2A CN115012585B (en) | 2022-06-30 | 2022-06-30 | Lattice steel column for unequal-altitude multi-span factory building and assembly method thereof |
Applications Claiming Priority (1)
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