CN115467416A - Steel latticed shell structure with curved surface streamer shape and construction method thereof - Google Patents
Steel latticed shell structure with curved surface streamer shape and construction method thereof Download PDFInfo
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- CN115467416A CN115467416A CN202211220740.7A CN202211220740A CN115467416A CN 115467416 A CN115467416 A CN 115467416A CN 202211220740 A CN202211220740 A CN 202211220740A CN 115467416 A CN115467416 A CN 115467416A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 120
- 239000010959 steel Substances 0.000 title claims abstract description 120
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 238000003466 welding Methods 0.000 claims description 29
- 238000009434 installation Methods 0.000 claims description 12
- 238000010891 electric arc Methods 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 3
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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
- E04B1/32—Arched structures; Vaulted structures; Folded structures
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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
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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Abstract
The invention relates to a steel latticed shell structure with a curved surface streamer shape and a construction method thereof, wherein the steel latticed shell structure comprises a latticed shell and a fixing device, the latticed shell is in a twisted curved surface strip-shaped structure, the latticed shell is installed in a layered and segmented mode in the installation process, all components of the latticed shell are gradually spliced, and the construction efficiency is improved; the latticed shell is divided into a vertical section latticed shell, an oblique curved section latticed shell and a horizontal section latticed shell from left to right, the vertical section latticed shell can be used as a decorative curtain wall, the oblique curved section latticed shell has the function of the curtain wall and a rainshed, and the horizontal section latticed shell can be used as the rainshed and integrates the viewing function and the using function; the fixing device comprises a pull rod, a side embedded part and a connecting steel beam, the side embedded part and the connecting steel beam are embedded in one side of the main body structure, the latticed shell is connected and hung on the main body structure through the fixing device, the main body structure is connected to a building through the steel beam, the main body structure is exactly like a huge streamer and is hung on a building vertical surface, the modeling is elegant, and the structure is stable.
Description
Technical Field
The invention relates to the technical field of building structures, in particular to a curved surface streamer modeling steel latticed shell structure and a construction method thereof.
Background
With the development of society and the progress of science and technology, the aesthetic requirements of people on the shape of a building are higher and higher, individuality is revealed, the impression of the public is more profound due to the unique shape, the urban image is shaped, more human and economic benefits are brought to the city, and therefore the additional commercial value of the building is improved. The steel structure net shell modeling is mostly regular or more regular modeling such as cylindrical surface, sphere, elliptic paraboloid, and the canopy of social building is mostly structural style such as flat top or pinnacle, and the structure is comparatively simple, and the form is single, has the steel net shell structure of curtain, canopy function more rarely simultaneously.
Disclosure of Invention
The invention provides a steel latticed shell structure with a curved surface streamer shape and a construction method thereof, aiming at solving the problems of single steel latticed shell structure and stiff shape.
The invention provides a steel latticed shell structure with a curved surface streamer shape and a construction method thereof, wherein the following technical scheme is adopted:
a steel latticed shell structure with a curved surface streamer shape comprises a latticed shell and a fixing device, wherein the latticed shell is connected with the fixing device; the reticulated shell is a twisted curved surface belt-shaped structure; the reticulated shell is horizontally segmented from left to right and sequentially comprises a horizontal segment reticulated shell, an oblique curved surface segment reticulated shell and a vertical segment reticulated shell; the latticed shell comprises longitudinal chords, transverse steel beams, transverse chords and oblique web members; the plurality of longitudinal chords are arranged in parallel; at the positions of the vertical section reticulated shell and the oblique curved surface section reticulated shell, a plurality of transverse chords and a plurality of longitudinal chords are connected to form a spatial grid structure, and oblique web members are connected to the diagonal positions of each single grid; at horizontal segment net shell position, many horizontal girder steels and many vertical chords are connected and are formed space grid structure, and the diagonal position in every independent net is connected to the slant web member.
Further, the fixing device comprises a pull rod, a side embedded part and a connecting steel beam; the pull rod is positioned at the edge of the vertical section reticulated shell and is intersected with the vertical section reticulated shell; one end of the pull rod is fixedly connected to the intersection point position of the longitudinal chord member and the transverse chord member; the other end of the pull rod is connected to the side embedded part; the side embedded part is embedded into the front surface of the main body structure; the connecting steel beam is positioned at the edge of the horizontal section latticed shell, and one end of the connecting steel beam is fixedly connected to the intersection point of the longitudinal chord and the transverse steel beam; the other end of the connecting steel beam is connected to an embedded steel beam, and the embedded steel beam is embedded in the front of the main body structure; the reticulated shell is connected and hung on the main body structure through a fixing device.
Furthermore, a first steel beam is mounted on the back face of the main body structure, a plurality of first steel beams are arranged, and the first steel beams are connected to the building.
Furthermore, the longitudinal chord members, the transverse chord members, the oblique web members and the pull rods are of hollow round tubular structures, and the diameters of the longitudinal chord members, the transverse chord members, the oblique web members and the pull rods are 160-200 mm; the connecting steel beam, the pre-buried steel beam and the first steel beam are of hollow square tubular structures; the transverse steel beam is of a box-shaped beam structure.
The construction method of the steel latticed shell structure with the curved surface ribbon shape comprises the following steps:
s1: embedding a side embedded part and an embedded steel beam on the front surface of the main body structure according to the standard height given by a design drawing;
s2: determining the stress condition of the rod piece, the section size, the wall thickness and the strength of the transverse steel beam through calculation, performing space bending on the corresponding rod piece according to a design drawing, and assembling and welding all the rod pieces on site after finishing processing;
s3: layering the reticulated shell from bottom to top and installing the reticulated shell from left to right in a segmented manner: installing longitudinal chords and transverse steel beams of a first layer of the horizontal section latticed shell; then installing the diagonal web members of the first layer of the horizontal section reticulated shell; after the installation of all components of the first layer of the horizontal section reticulated shell is finished, installing all components of the second layer of the horizontal section reticulated shell according to the same steps, and after the installation of all components of the second layer of the horizontal section reticulated shell is finished, installing all components of the third layer and the fourth layer of the horizontal section reticulated shell, and so on until all the horizontal section reticulated shells are installed; after the installation of the horizontal section reticulated shell is finished, installing the inclined curved section reticulated shell and the vertical section reticulated shell according to the same steps; connecting the segments of the installed horizontal segment reticulated shell, the oblique curved surface segment reticulated shell and the vertical segment reticulated shell in a welding mode to form a complete reticulated shell structure;
s4: welding a pull rod at the edge of the vertical section reticulated shell, welding the pull rod to the position of the side embedded part, and connecting and hanging the vertical section reticulated shell on the main body structure; the steel beam is welded at the edge of the horizontal section reticulated shell, the other end of the connecting steel beam is welded with the pre-embedded steel beam, and the horizontal section reticulated shell is connected and hung on the main body structure;
s5: and a first steel beam is welded on the back surface of the main body structure, and the main body structure is fixed on a building through the first steel beam and forms a whole with the building.
Further, in step S3, the joints of the components of the latticed shell are welded in the form of butt joints and T-shaped joints.
Further, in step S4, an arc striking plate and an extraction plate are installed on the side surface of the welding position of the connecting steel beam and the embedded steel beam, the plate for welding is weighed as the arc striking plate, the plate for welding is weighed as the extraction plate, arc striking welding is performed on the arc, and the redundant part is cut off after welding.
Further, in step S4, the oblique curved section latticed shell selects to install a pull rod or connect a steel beam according to actual stress analysis.
In summary, the invention has the following beneficial technical effects:
1. the net shell is divided into a vertical section net shell, an oblique curved section net shell and a horizontal section net shell, the vertical section net shell can be used as a decorative curtain wall, the oblique curved section net shell has the function of the curtain wall and a canopy, the horizontal section net shell can be used as a canopy, a huge streamer is displayed to be hung outside a building vertical surface, and the ornamental function and the using function are integrated.
2. The components forming the latticed shell are spliced step by step, the latticed shell is installed in a layered and sectional mode, construction efficiency is improved, the latticed shell is convenient to inspect and maintain, the latticed shell can be hoisted after being spliced on site, the latticed shell can also be assembled at high altitude through the supporting frame, and construction is flexible.
3. The latticed shell and the main body mechanism are fixedly suspended on a building through the fixing device and the first steel beam, so that the structure is stable; the hollow structure of each component of the latticed shell improves the stability of the structure and prolongs the service life.
4. The arc striking welding of electric arc is adopted, the welding is flexible, the assembly and the disassembly are convenient, the arc striking plate and the leading-out plate can be used for arc closing, the welding defect caused by too large initial current is prevented, and therefore the welding joint can be ensured to obtain the welding seam section with normal size at the initial end and the tail end.
Drawings
FIG. 1 is a schematic structural diagram of a steel reticulated shell structure in an embodiment of the present invention;
FIG. 2 is a front view of a steel reticulated shell structure in an embodiment of the present invention;
FIG. 3 is a schematic view of the layered and segmented installation of the steel latticed shell structure of the embodiment of the invention;
FIG. 4 is a cross-sectional view of the vertical section between the latticed shell, body structure and building in accordance with an embodiment of the present invention;
FIG. 5 is a schematic view of the connection between the horizontal section of the reticulated shell and the main body mechanism in an embodiment of the present invention;
fig. 6 is a schematic view illustrating welding of the connecting steel beam and the pre-buried steel beam according to the embodiment of the present invention.
Description of reference numerals:
1. a reticulated shell; 2. a longitudinal chord; 3. an oblique web member; 4. a transverse steel beam; 5. a transverse chord; 6. a fixing device; 7. a horizontal section reticulated shell; 8. a diagonal curved section reticulated shell; 9. a vertical section reticulated shell; 10. a pull rod; 11. a side buried piece; 12. a body structure; 13. a first steel beam; 14. pre-burying a steel beam; 15. a building; 16. connecting the steel beams; 17. an arc striking plate; 18. a lead-out plate; 19. A first layer; 20. a second layer; 21. a third layer; 22. and a fourth layer.
Detailed Description
The invention is described in further detail below with reference to figures 1-6.
The embodiment of the invention discloses a curved surface streamer modeling steel latticed shell structure and a construction method thereof. Referring to fig. 1-4, a steel latticed shell structure with a curved surface streamer shape comprises a latticed shell 1 and a fixing device 6, wherein the latticed shell 1 is connected with the fixing device 6; the reticulated shell 1 is a twisted curved surface belt-shaped structure; the reticulated shell 1 is horizontally segmented from left to right and sequentially comprises a horizontal segment reticulated shell 7, an oblique curved segment reticulated shell 8 and a vertical segment reticulated shell 9; the latticed shell 1 comprises longitudinal chords 2, transverse steel beams 4, transverse chords 5 and oblique web members 3; a plurality of the longitudinal chords 2 are arranged in parallel; at the positions of the vertical section reticulated shell 9 and the oblique curved section reticulated shell 8, a plurality of transverse chords 5 and a plurality of longitudinal chords 2 are connected to form a spatial grid structure, and the oblique web members 3 are connected to the diagonal positions of each single grid; at the position of a horizontal section latticed shell 7, a plurality of transverse steel beams 4 and a plurality of longitudinal chords 2 are connected to form a space grid structure, and oblique web members 3 are connected to the diagonal positions of each single grid.
The reticulated shell 1 is divided into a vertical section reticulated shell 9, an oblique curved section reticulated shell 8 and a horizontal section reticulated shell 7, the vertical section reticulated shell 9 can be used as a decorative curtain wall, the oblique curved section reticulated shell 8 has the function of the curtain wall and a rainshed, and the horizontal section reticulated shell 7 can be used as a rainshed, so that the ornamental function and the using function are integrated, the structure is exactly like a huge streamer belt hung on a building facade, the shape is elegant, and the dynamic aesthetic feeling is achieved.
Referring to fig. 3-5, the fixing device 6 includes a tie rod 10, a side buried part 11, and a connecting steel beam 16; the pull rod 10 is positioned at the edge of the vertical section reticulated shell 9, and the pull rod 10 is intersected with the vertical section reticulated shell 9; one end of the pull rod 10 is fixedly connected with the intersection point position of the longitudinal chord 2 and the transverse chord 5; the other end of the pull rod 10 is connected to the side buried part 11; the side embedded part 11 is embedded into the front surface of the main body structure 12; the connecting steel beam 16 is positioned at the edge of the horizontal section reticulated shell 7, and one end of the connecting steel beam 16 is fixedly connected to the intersection point of the longitudinal chord 2 and the transverse steel beam 4; the other end of the connecting steel beam 16 is connected to the embedded steel beam 14, and the embedded steel beam 14 is embedded in the front of the main body structure 12; the reticulated shell 1 is connected and suspended on the main structure 12 through the fixing device 6.
Referring to fig. 4 and 5, a first steel beam 13 is installed on the rear surface of the main structure 12, the first steel beam 13 includes a plurality of steel beams, and the first steel beam 13 is connected to the building 15. The latticed shell 1 and the main body mechanism 12 are suspended and fixed on a building 15 through the fixing device 6 and the first steel beam 13, so that the structure is stable;
referring to fig. 1 and 5, the longitudinal chord 2, the transverse chord 5, the diagonal web members 3 and the pull rods 10 are hollow round tubular structures, and the diameters of the hollow round tubular structures are 160mm-200mm; the connecting steel beam 16, the pre-buried steel beam 14 and the steel beam I13 are of hollow square tubular structures; the transverse steel beam 4 is of a box beam structure. The hollow structure of each component forming the reticulated shell 1 improves the stability of the structure and prolongs the service life.
The construction method of the steel latticed shell structure with the curved surface ribbon shape comprises the following steps:
s1: embedding a side embedded part 11 and an embedded steel beam 14 on the front surface of a main body structure 12 according to a standard height given by a design drawing;
s2: stress conditions of the rod pieces, and section size, wall thickness and strength of the transverse steel beam 4 are determined through calculation, the corresponding rod pieces are bent spatially according to a design drawing, and all the rod pieces are assembled and welded on site after being processed;
s3: the reticulated shell 1 is layered from bottom to top and is installed from left to right in a segmented manner:
installing the longitudinal chord 2 and the transverse steel beam 4 of the first layer 19 of the horizontal section latticed shell 7; then the diagonal web members 3 of the first layer 19 of the horizontal section reticulated shell 7 are installed; after the installation of all components of the first layer 19 of the horizontal section reticulated shell 7 is finished, the installation of all components of the second layer 20 of the horizontal section reticulated shell 7 is carried out according to the same steps, after the installation of all components of the second layer 20 of the horizontal section reticulated shell 7 is finished, the installation of all components of the third layer 21 and the fourth layer 22 of the horizontal section reticulated shell 7 is carried out, and the rest is done in the same way until all the horizontal section reticulated shell 7 is completely installed;
after the horizontal section reticulated shell 7 is installed, installing an oblique curved section reticulated shell 8 and a vertical section reticulated shell 9 according to the same steps;
connecting the assembled horizontal section reticulated shell 7, the oblique curved section reticulated shell 8 and the vertical section reticulated shell 9 in a welding mode to form a complete reticulated shell 1 structure;
the latticed shell 1 is installed in a layered and segmented mode, construction efficiency is improved, the latticed shell 1 is convenient to inspect and maintain, the latticed shell can be hoisted after being spliced on site, the latticed shell can be spliced at high altitude through the supporting frame, and construction is flexible.
S4: welding a pull rod 10 on the edge of the vertical section reticulated shell 9, welding the pull rod 10 to the position of the side embedded part 11, and connecting and hanging the vertical section reticulated shell 9 on the main body structure 12;
a steel beam 16 is welded and connected to the edge of the horizontal section reticulated shell 7, the other end of the steel beam 16 is welded with the embedded steel beam 14, and the horizontal section reticulated shell 7 is connected and hung on the main structure 12;
s5: and welding a steel beam one 13 on the back of the main body structure 12, and fixing the main body structure 12 on a building 15 through the steel beam one 13 to form a whole with the building 15.
In step S3, the joints of the components of the reticulated shell 7 are welded in the form of butt joints and T-joints.
In the step S4, an arc striking plate 17 and an arc striking plate 18 are installed on the side face of the welding position of the connecting steel beam 16 and the embedded steel beam 14, and arc striking and arc stopping are carried out on the electric arc. The arc striking and arc withdrawing of the electric arc are adopted, the welding is flexible and convenient to assemble and disassemble, the arc striking plate 17 performs arc striking of the electric arc, the arc withdrawing plate 18 performs arc withdrawing of the electric arc, and the welding defect caused by too large initial current is prevented, so that the welding joint is ensured to obtain the welding seam section with normal size at the initial end and the tail end.
In the step S4, the oblique curved section reticulated shell 8 selects to install the tie rod 10 or connect the steel beam 16 according to the actual stress analysis, the oblique curved section reticulated shell 8 is close to the horizontal section reticulated shell 7, the load borne by the fixing device 6 overhanging the main body mechanism 12 is large, the steel beam 16 needs to be connected and fixed, the oblique curved section reticulated shell 8 is close to the vertical section reticulated shell 9, the load borne by the fixing device 6 is reduced, and the tie rod 10 is used for fixing.
The above are the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: equivalent changes made according to the structure, shape and principle of the invention shall be covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a figurative steel latticed shell structure of curved surface ribbon which characterized in that: the net shell fixing device comprises a net shell (1) and a fixing device (6), wherein the net shell (1) is connected with the fixing device (6);
the reticulated shell (1) is of a twisted curved surface belt-shaped structure; the latticed shell (1) is horizontally segmented from left to right and sequentially comprises a horizontal section latticed shell (7), an oblique curved section latticed shell (8) and a vertical section latticed shell (9);
the latticed shell (1) comprises longitudinal chords (2), transverse steel beams (4), transverse chords (5) and oblique web members (3); the longitudinal chords (2) are arranged in parallel; at the positions of the vertical section reticulated shell (9) and the oblique curved section reticulated shell (8), a plurality of transverse chords (5) and a plurality of longitudinal chords (2) are connected to form a spatial grid structure, and the oblique web members (3) are connected to the diagonal positions of each single grid; in horizontal section net shell (7) position, many horizontal girder steels (4) and many vertical chord member (2) are connected and are formed space grid structure, and diagonal position at every independent net is connected in slant web member (3).
2. The profiled steel latticed shell structure of curved surface ribbon of claim 1, characterized in that: the fixing device (6) comprises a pull rod (10), a side embedded part (11) and a connecting steel beam (16);
the pull rod (10) is positioned at the edge of the vertical section reticulated shell (9), and the pull rod (10) is intersected with the vertical section reticulated shell (9); one end of the pull rod (10) is fixedly connected to the intersection point position of the longitudinal chord (2) and the transverse chord (5); the other end of the pull rod (10) is connected to a side embedded part (11); the side embedded part (11) is embedded into the front surface of the main body structure (12);
the connecting steel beam (16) is positioned at the edge of the horizontal section latticed shell (7), and one end of the connecting steel beam (16) is fixedly connected to the intersection point position of the longitudinal chord (2) and the transverse steel beam (4); the other end of the connecting steel beam (16) is connected to an embedded steel beam (14), and the embedded steel beam (14) is embedded in the front of the main body structure (12);
the latticed shell (1) is connected and hung on the main body structure (12) through a fixing device (6).
3. The profiled steel latticed shell structure of curved surface streamer of claim 2, characterized by: the back surface of the main body structure (12) is provided with a first steel beam (13), the first steel beam (13) is provided with a plurality of beams, and the first steel beam (13) is connected to a building (15).
4. The profiled steel latticed shell structure of curved surface streamer of claim 2, characterized by: the longitudinal chord members (2), the transverse chord members (5), the oblique web members (3) and the pull rods (10) are of hollow round tubular structures, and the diameters of the longitudinal chord members, the transverse chord members and the oblique web members are 160-200 mm; the connecting steel beam (16), the pre-buried steel beam (14) and the steel beam I (13) are of hollow square tubular structures; the transverse steel beam (4) is of a box-shaped beam structure.
5. The construction method of the steel latticed shell structure with the curved surface ribbon shape comprises the following steps:
s1: embedding a side embedded part (11) and an embedded steel beam (14) on the front surface of a main body structure (12) according to a standard height given by a design drawing;
s2: stress conditions of the rod pieces, section sizes, wall thicknesses and strengths of the transverse steel beams (4) are determined through calculation, the corresponding rod pieces are bent in space according to a design drawing, and all the rod pieces are assembled and welded on site after being processed;
s3: the latticed shell (1) is layered from bottom to top and is installed from left to right in a segmented mode:
installing longitudinal chords (2) and transverse steel beams (4) of a first layer (19) of a horizontal section latticed shell (7); then installing the diagonal web members (3) of the first layer (19) of the horizontal section reticulated shell (7); after the installation of all components of the first layer (19) of the horizontal section reticulated shell (7) is finished, the installation of all components of the second layer (20) of the horizontal section reticulated shell (7) is carried out according to the same steps, after the installation of all components of the second layer (20) of the horizontal section reticulated shell (7) is finished, the installation of all components of the third layer (21) and the fourth layer (22) of the horizontal section reticulated shell (7) is carried out, and the rest is done until all the horizontal section reticulated shell (7) is installed;
after the horizontal section reticulated shell (7) is installed, installing the oblique curved section reticulated shell (8) and the vertical section reticulated shell (9) according to the same steps;
connecting the segments of the installed horizontal segment reticulated shell (7), the oblique curved segment reticulated shell (8) and the vertical segment reticulated shell (9) in a welding mode to form a complete reticulated shell (1) structure;
s4: welding a pull rod (10) at the edge of the vertical section reticulated shell (9), welding the pull rod (10) to the position of the side embedded part (11), and connecting and hanging the vertical section reticulated shell (9) on the main body structure (12);
a steel beam (16) is welded at the edge of the horizontal section reticulated shell (7), the other end of the steel beam (16) is welded with the embedded steel beam (14), and the horizontal section reticulated shell (7) is connected and hung on the main body structure (12);
s5: a first steel beam (13) is welded on the back of the main structure (12), and the main structure (12) is fixed on a building (15) through the first steel beam (13) to form a whole with the building (15).
6. The construction method of the curved surface streamer molding steel latticed shell structure according to claim 6, characterized in that: in the step S3, the joints of all components of the reticulated shell (7) are welded in a butt joint mode and a T-shaped joint mode.
7. The construction method of the curved surface streamer molding steel latticed shell structure according to claim 6, characterized in that: and S4, installing an arc striking plate (17) and an extraction plate (18) on the side surface of the welding part of the connecting steel beam (16) and the embedded steel beam (14) to perform arc striking welding of the electric arc.
8. The construction method of the curved surface streamer molding steel latticed shell structure according to claim 6, characterized in that: in the step S4, the inclined curved surface section latticed shell (8) selects and installs the pull rod (10) or the connecting steel beam (16) according to actual stress analysis.
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