CN218346555U - Honeycomb hole corrugated steel web's integrated configuration roofing girder - Google Patents
Honeycomb hole corrugated steel web's integrated configuration roofing girder Download PDFInfo
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- CN218346555U CN218346555U CN202123109813.9U CN202123109813U CN218346555U CN 218346555 U CN218346555 U CN 218346555U CN 202123109813 U CN202123109813 U CN 202123109813U CN 218346555 U CN218346555 U CN 218346555U
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Abstract
The utility model provides a honeycomb hole corrugated steel web composite structure roof girder, wherein a steel pipe concrete upper flange is used as the upper flange of the roof girder, so that the bearing capacity of a compression area of the roof girder is improved; the strip honeycomb hole steel plate is bent in a wave shape to form a honeycomb hole wave-shaped steel web, the honeycomb hole wave-shaped steel web is used as a web of a roof girder to bear the shear-resistant function of a girder structure, and the honeycomb holes are beneficial to arrangement of pipelines and electric wires in a factory building; the lower flange of the prestressed concrete filled steel tube core rod is used as the lower flange of the roof girder, and prestressed steel bars are arranged in the tube to greatly improve the bending rigidity and the bending bearing capacity of the girder body. The concrete filled steel tube upper flange, the honeycomb-hole corrugated steel web and the prestressed concrete filled steel tube core rod lower flange are welded into a whole through the upper channel steel connecting piece and the lower channel steel connecting piece, strong combination and cooperative work are achieved, the structure is simple, stress is reliable, a roof girder with a combined structure is formed, and the steel-tube concrete core rod upper flange and the honeycomb-hole corrugated steel web can be used for single-layer industrial workshops with ultra-large spans of 36-48 meters.
Description
Technical Field
The utility model belongs to the civil engineering field relates to an individual layer factory building roofing girder structure, especially relates to a composite construction roofing girder of honeycomb holes wave form steel web.
Background
Along with social development, industrial production needs an ultra-large span single-layer factory building so as to meet the huge space requirement of large-scale industrial production, large-scale production equipment is placed, the production process flow is flexibly arranged, and smooth logistics transportation in a production workshop needs to be guaranteed.
The existing single-layer industrial factory building roof structure usually adopts an assembled roof structure, wherein the roof structures such as the prestressed concrete saddle plate and the prestressed concrete double-T plate have the advantages of low manufacturing cost, convenience in manufacturing and the like, but the roof structures have large self weight and small spanning capacity. The net rack, the beam string and other roof structures have the advantages of light dead weight and large spanning capacity, but the price is high, and the construction process is complex.
Along with the development of industrial production, the demand of an ultra-large span single-layer industrial factory building is more and more, and the research and development of a 36-48 m ultra-large span practical economical assembled roof structure is urgently needed so as to replace an expensive grid structure and a beam string structure.
Aiming at the requirements of an ultra-large span single-layer factory building, the advantages of a combined structure are exerted, a novel combined structure roof girder is developed, a honeycomb hole corrugated steel web plate is used as a web plate of a combined structure roof girder to bear the shear-resistant function of a girder body structure, and honeycomb holes are beneficial to the arrangement of pipelines and electric wires in the factory building; a prestressed concrete-filled steel tube core rod structure is adopted as a pulled lower flange of the combined roof girder, so that the bending rigidity and the bending bearing capacity of a girder body are enhanced; the steel pipe concrete compression rod piece is used as the upper flange of the combined roof girder, so that the bearing capacity of a compression area of the roof girder is improved, and steel is saved.
The steel pipe concrete top flange, the honeycomb hole corrugated steel web and the prestressed steel pipe concrete core rod bottom flange are welded into a whole through the channel steel connecting piece and are combined for use to form a novel combined structure roof girder, an auxiliary tie bar and a support are configured, and an ultra-large span single-layer industrial factory building is built.
SUMMERY OF THE UTILITY MODEL
The technical problem is as follows: the utility model provides a convenient construction, bear the weight of the integrated configuration roofing girder of honeycomb hole wave form steel web that dynamic height, cost are low, steel pipe concrete top flange, honeycomb hole wave form steel web and prestress steel pipe concrete plug bottom flange three pass through the channel-section steel connecting piece welding and form wholly, and the combination is strong jointly, and the combination is used, and the advantage is complementary, and novel group roofing girder can regard as the roofing girder that the super large strides the footpath factory building.
The technical scheme is as follows: the utility model discloses a composite construction roofing girder of honeycomb holes wave form steel web, including the steel core concrete top flange, honeycomb holes wave form steel web and prestressing force steel core rod bottom flange, its characterized in that: the steel pipe concrete top flange is used as the top flange of the roof girder, the honeycomb hole corrugated steel web plate is used as the web plate of the roof girder, the honeycomb hole corrugated steel web plate is a steel web plate formed by arranging a plurality of hexagonal strip honeycomb hole steel plates according to a certain distance and performing waveform bending processing, the prestressed steel pipe concrete core rod bottom flange is used as the bottom flange of the roof girder, the prestressed steel pipe concrete core rod bottom flange is composed of an outer sleeve steel pipe, in-pipe concrete and prestressed steel bars, the in-pipe concrete is filled in the outer sleeve steel pipe in a closely-packed manner, and the prestressed steel bars are uniformly arranged in the in-pipe concrete; horizontal flange surfaces of the upper channel steel connecting piece and the lower channel steel connecting piece are respectively welded with the longitudinal through lengths of the upper edge and the lower edge of the honeycomb-hole corrugated steel web plate, a concrete filled steel tube upper flange is welded with a groove opening of the upper channel steel connecting piece, a prestressed concrete filled steel tube core rod lower flange is welded with a groove opening of the lower channel steel connecting piece, and end head steel plates are arranged at two ends of a roof girder; the steel pipe concrete upper flange, the honeycomb hole corrugated steel web and the prestressed steel pipe concrete core rod lower flange are welded and connected into a whole through the upper channel steel connecting piece and the lower channel steel connecting piece to form a roof girder, a plurality of transverse steel supports are arranged between the roof girders, and an upper flange horizontal steel tie rod and a lower flange horizontal steel tie rod are arranged between the roof girders of the combined structure.
The utility model also provides a method of the integrated configuration roofing girder of foretell honeycomb hole wave form steel web of preparation, including following step:
cutting and processing a strip-shaped steel plate according to a honeycomb beam manufacturing process, forming the strip-shaped steel plate with a plurality of hexagonal honeycomb holes after staggered welding, and bending by using a plate folding machine to form a honeycomb hole corrugated steel web plate;
step two, longitudinally connecting an upper channel steel connecting piece and a lower channel steel connecting piece in a through welding mode on the upper edge and the lower edge of the honeycomb hole corrugated steel web plate to form an I-shaped steel beam with channel steel on the upper side and the lower side;
step three, respectively welding a longitudinal through long steel pipe on the upper flange and the upper flange of the I-shaped steel beam to form the I-shaped steel beam with the steel pipes on the upper flange and the lower flange;
pouring high-strength concrete into the upper flange steel pipe, and hardening the concrete to form a concrete-filled steel pipe upper flange;
step five, penetrating a plurality of prestressed reinforcements into the outer sleeve steel pipe of the lower flange, tensioning the prestressed reinforcements by using a jack, anchoring the prestressed reinforcements on a tensioning pedestal, pouring high-strength self-compacting concrete into the outer sleeve steel pipe to form concrete in the pipe, and releasing the prestressed reinforcements after the concrete in the pipe reaches the designed strength to form the lower flange of the prestressed concrete pipe core rod;
welding end seal head steel plates at two ends of the roof girder to form a finished product of the roof girder with the combined structure;
and seventhly, conveying the finished product of the roof girders with the combined structure to a construction site, hoisting and installing, installing transverse steel supports, upper flange horizontal steel tie bars and lower flange horizontal steel tie bars among the roof girders with the combined structure, laying a roof panel, and installing a roof drainage ditch to form the roof structure of the single-layer factory building with the ultra-large span.
Has the advantages that: compared with the prior art, the utility model, have following advantage:
the existing single-layer factory building roof structures such as the prestressed concrete saddle plate, the prestressed concrete double-T plate and the like have the advantages of low manufacturing cost, convenience in manufacturing and the like, but the structures have large self weight and small spanning capacity.
The existing single-layer factory building roof structures such as the net rack, the beam string and the like have the advantages of light dead weight and large spanning capability, but the price is high, and the construction process is complex.
Aiming at the research and development requirements of a 36-48 m ultra-large span practical economical assembly type single-layer industrial factory building roof structure, the honeycomb hole corrugated steel web is adopted as the web of the composite structure roof girder by utilizing the advantages of the composite structure to bear the shear-resistant function of the girder structure, and the honeycomb hole is beneficial to the arrangement of pipelines and electric wires in the factory building; the lower flange of the prestressed steel pipe concrete core rod is used as the tensioned lower flange of the girder of the combined roof, so that the bending rigidity and the bending bearing capacity of the girder are enhanced; the steel pipe concrete compression rod piece is used as the upper flange of the girder of the combined roof, so that the bearing capacity of a compression area of the girder is improved, and steel is saved; the steel pipe concrete top flange, the honeycomb hole corrugated steel web and the prestressed steel pipe concrete core rod bottom flange three are welded through the channel steel connecting piece to form a whole, and the whole is combined strongly and combined to form the novel composite structure roof girder.
Honeycomb holes wave form steel web has honeycomb roof beam and wave form steel web advantage between them simultaneously, honeycomb holes wave form steel web arranges the banding honeycomb holes steel sheet of a plurality of hexagons according to certain distance and carries out the steel web that wave form bending processing back formed, wave form steel web has improved the shearing ability reinforce of web, the steel sheet material has been saved to the honeycomb roof beam, honeycomb holes is favorable to arranging of factory building internal pipe way and electric wire, it is high to practice thrift the layer, can beautify the furred ceiling, therefore, honeycomb holes wave form steel web is very reasonable as the web of the roofing girder of individual layer industry factory building, the dead weight is light, the shearing bearing capacity is high, compare with the composite truss, its architectural structure is simple.
Compare traditional real abdomen formula plane steel web, traditional plane steel web lateral buckling unstability, honeycomb hole wave form steel web has good anti lateral stiffness and torsional rigidity, has strengthened integrated configuration roofing girder lateral bearing capacity, can avoid the lateral buckling unstability problem of integrated configuration roofing girder.
The lower flange of the prestressed concrete filled steel tube core rod consists of an outer sleeved steel tube, concrete in the tube and prestressed steel bars, and a plurality of prestressed steel strands can be placed in the lower flange of the prestressed concrete filled steel tube core rod, so that the bending resistance bearing capacity of the roof girder of the combined structure is greatly improved; the concrete in the pipe protects the prestressed reinforcement from being rusted, and the durability of the prestressed reinforcement is good; the outer sleeve steel pipe can participate in tensile work, and the outer sleeve steel pipe can restrain concrete in the pipe; the outer sleeved steel tube, the concrete in the tube and the prestressed reinforcement work cooperatively, the advantages are complementary, and the lower flange of the prestressed concrete-filled steel tube core rod has good tensile working performance.
The steel pipe concrete top flange is adopted as a compression area component unit of the girder, the outer sleeve steel pipe restrains the concrete in the pipe, the concrete in the pipe is compressed in three directions, the strength and the ductility of the concrete in the pipe are greatly improved, and the compression area working performance of the roof girder of the combined structure can be ensured by the steel pipe concrete top flange.
The flanges of the upper and lower channel steel connecting pieces are welded and connected with the longitudinal through length of the honeycomb hole corrugated steel web, so that the welding is firm, and the manufacture is simple and convenient; the grooves of the upper channel steel connecting piece and the lower channel steel connecting piece are longitudinally and completely connected with the upper flange circular steel pipe and the lower flange circular steel pipe in a welding mode, construction is convenient, welding is firm, and smooth force transmission of the upper flange circular steel pipe and the lower flange circular steel pipe can be guaranteed; the difficult problem of the welded connection of two circular steel pipes on honeycomb hole wave form steel web and upper and lower flange is solved.
The steel pipe concrete upper flange, the honeycomb hole corrugated steel web and the prestressed steel pipe concrete core rod lower flange are welded and connected into a whole through the upper channel steel connecting piece and the lower channel steel connecting piece, so that a roof girder with a combined structure is formed, the roof girder is strong in combination and cooperative, the structure is simple and clear, and stress is reliable.
The novel composite structure roof girder is a breakthrough innovation of the construction process of the roof girder of the ultra-large span single-layer factory building, can replace a grid structure and a beam string structure, has excellent stress performance, is simple and convenient to manufacture, saves steel, reduces the manufacturing cost, is convenient to transport, shortens the construction period, is suitable for industrial large-scale production, can be used for the ultra-large span single-layer factory building project of 36-48 meters, and is particularly suitable for the factory building and warehouse project engineering of village and town enterprises.
Drawings
FIG. 1 is a three-dimensional schematic view of a honeycomb corrugated steel web composite structural roof girder;
FIG. 2 is a three-dimensional schematic view of a honeycomb hole corrugated steel web bending process;
FIG. 3 is a three-dimensional schematic view of the girder assembly of the roof of the single-storey factory building;
FIG. 4 is a cross-sectional schematic view of FIG. 3;
fig. 5 is a schematic cross-sectional view of the prestressed concrete-filled steel tube core rod of fig. 4.
The figure shows that: a steel pipe concrete upper flange 1; a honeycomb hole corrugated steel web 2; a lower flange 3 of the prestressed concrete filled steel tube core rod; an outer jacket steel pipe 31; the in-tube concrete 32; prestressed reinforcement 33; an upper channel steel connecting piece 4 and a lower channel steel connecting piece 5; end head steel plates 6; a transverse steel support 7; an upper flange horizontal steel tie bar 8; the lower flange is horizontal with the steel tie bar 9.
Detailed Description
The invention is further described with reference to the drawings and examples.
Example 1
The utility model discloses a composite construction roofing girder of honeycomb holes wave form steel web, including steel core concrete top flange 1, honeycomb holes wave form steel web 2, prestressing force steel core rod bottom flange 3, upper portion channel-section steel connecting piece 4, lower part channel-section steel connecting piece 5, tip head steel sheet 6, horizontal steel shotcrete 7, top flange horizontal steel tie rod 8 and bottom flange horizontal steel tie rod 9, its characterized in that: the steel pipe concrete top flange 1 is used as the top flange of a roof girder, the honeycomb hole corrugated steel web plate 2 is used as the web plate of a roof girder, the honeycomb hole corrugated steel web plate 2 is a steel web plate formed by arranging a plurality of hexagonal strip honeycomb hole steel plates according to a certain distance and performing corrugated bending, the prestressed steel pipe concrete core rod bottom flange 3 is used as the bottom flange of the roof girder, the prestressed steel pipe concrete core rod bottom flange 3 is composed of an outer sleeve steel pipe 31, inner pipe concrete 32 and prestressed steel bars 33, the inner sleeve steel pipe 31 is filled with the inner pipe concrete 32 in a closely-packed manner, and the prestressed steel bars 33 are uniformly arranged in the inner pipe concrete 32; horizontal flange surfaces of an upper channel steel connecting piece 4 and a lower channel steel connecting piece 5 are respectively connected with upper and lower edges of a honeycomb hole corrugated steel web 2 in a longitudinal through-length welding mode, a concrete filled steel tube upper flange 1 is connected with a groove opening of the upper channel steel connecting piece 4 in a welding mode, a prestressed concrete filled steel tube core rod lower flange 3 is connected with a groove opening of the lower channel steel connecting piece 5 in a welding mode, and end sealing steel plates 6 are arranged at two ends of a roof girder; the concrete-filled steel tube upper flange 1, the honeycomb-hole corrugated steel web 2 and the prestressed concrete-filled steel tube core rod lower flange 3 are welded and connected into a whole through an upper channel steel connecting piece 4 and a lower channel steel connecting piece 5 to form a roof girder, a plurality of transverse steel supports 7 are arranged between the roof girders, and an upper flange horizontal steel tie bar 8 and a lower flange horizontal steel tie bar 9 are arranged between the roof girders in the combined structure.
Example 2
The honeycomb-hole corrugated steel web composite structure roof girder and the preparation method thereof are characterized in that: the method comprises the following steps:
cutting and processing a strip-shaped steel plate according to a honeycomb beam manufacturing process, forming the strip-shaped steel plate with a plurality of hexagonal honeycomb holes after staggered welding, and bending by using a plate folding machine to form a honeycomb hole corrugated steel web plate 2;
step two, longitudinally connecting an upper channel steel connecting piece 4 and a lower channel steel connecting piece 5 in a through welding mode on the upper edge and the lower edge of the honeycomb hole corrugated steel web 2 to form an I-shaped steel beam with channel steel on the upper side and the lower side;
step three, respectively welding a longitudinal through long steel pipe on the upper flange and the upper flange of the I-shaped steel beam to form the I-shaped steel beam with the steel pipes on the upper flange and the lower flange;
pouring high-strength concrete into the upper flange steel pipe, and hardening the concrete to form a concrete-filled steel pipe upper flange 1;
step five, penetrating a plurality of prestressed reinforcements 33 into the outer casing steel pipe 31 of the lower flange, tensioning the prestressed reinforcements 33 by using a jack, anchoring the prestressed reinforcements 33 on a tensioning pedestal, pouring high-strength self-compacting concrete into the outer casing steel pipe 31 to form in-pipe concrete 32, and releasing the prestressed reinforcements 33 after the in-pipe concrete 32 reaches the designed strength to form a prestressed concrete pipe core rod lower flange 3;
welding end seal head steel plates 6 at two ends of the roof girder to form a finished product of the roof girder with the combined structure;
and seventhly, conveying the finished product of the roof girders with the combined structure to a construction site, hoisting and installing, installing transverse steel supports 7, upper flange horizontal steel tie bars 8 and lower flange horizontal steel tie bars 9 among the roof girders with the combined structure, laying a roof panel, and installing a roof drainage ditch to form a single-layer factory roof structure with an ultra-large span.
Example 3
Certain individual layer industry factory building, factory building span 42m, factory building length 60m, factory building eaves mouth height are 24m, and roofing structure adopts honeycomb holes wave form steel web's integrated configuration roofing girder, and the roof beam height is 3.0m, and roofing girder interval is 6m, and roofing design live load is 2.0kN/m 2 。
The steel pipe concrete top flange adopts a Q345 seamless steel pipe with the diameter of 400mm and the wall thickness of 8mm, and micro-expansion self-compaction C60 high-strength concrete is poured into the steel pipe concrete top flange.
Honeycomb holes waveform steel web undertakes the shear-resistant effect function of roof beam structure as the web of roofing girder, and honeycomb holes are favorable to arranging of factory building internal conduit and electric wire, and honeycomb holes waveform steel web arranges the banding honeycomb holes steel sheet of a plurality of hexagons according to certain distance and carries out the wave form and buckle the steel web that the processing back formed.
The length of banding honeycomb holes steel sheet is 43920mm, steel web height is 2100mm, steel sheet thickness 12mm, adopt Q235 steel preparation, two hexagon honeycomb holes's mutual central distance is 1800mm, hexagon honeycomb holes's last bridge strides length and is 600mm, hexagon honeycomb holes's two upper and lower bridges stride the height of steel sheet and are 300mm, hexagon honeycomb holes's last bridge pier length also is 600mm, hexagon honeycomb holes's middle part bridge toe distance is 1200mm, hexagon honeycomb holes's height is 1500mm, honeycomb holes steel sheet's expansion ratio is 1.55556.
Bending a 43920mm strip honeycomb hole steel plate into a 42000mm honeycomb hole corrugated steel web by using a plate folding machine, wherein the bending scheme is as follows: the honeycomb hole steel plate is 600mm in width, the pier steel plates on two sides are reserved for 100m, the middle pier steel plate is bent at the width of 400mm, the horizontal projection length of the bent inclined steel plate section is 320mm, and the thickness of the bent inclined steel plate section is 240mm.
The 43.92m strip honeycomb hole steel plate is processed into a 42m honeycomb hole corrugated steel web by waveform bending, the wavelength is 3440mm, the wave height is 240m, the projection length of the inclined plate section is 320mm, the horizontal length of the straight plate section is 1400mm, the hexagonal honeycomb hole is arranged on the straight plate section of the corrugated steel web, and both sides of the hexagonal honeycomb hole of the straight plate section are provided with 100mm solid web steel plates.
The prestressed steel pipe concrete core rod is used as a girder lower flange, the lower flange steel pipe is a seamless steel pipe with the diameter of 400mm and the wall thickness of 10mm, 18 high-strength low-relaxation 7 phi 5 steel strands are arranged in the steel pipe, and the steel pipe is filled and compacted with micro-expansion self-compacting C60 high-strength concrete.
Through upper portion and lower part channel-section steel connecting piece with steel pipe concrete top flange, honeycomb hole wave form steel web and prestress steel pipe concrete plug bottom flange three welded connection become wholly, upper portion channel-section steel connecting piece and lower part channel-section steel connecting piece all adopt No. 30 channel-section steels, the both ends welding tip head steel sheet of roofing girder forms integrated configuration roofing girder finished product, tip head steel sheet size 2100X 240mm, the steel sheet thickness 8mm.
Claims (1)
1. The utility model provides a integrated configuration roofing girder of honeycomb holes wave form steel web, includes steel core concrete top flange (1), honeycomb holes wave form steel web (2) and prestressing force steel core rod bottom flange (3), its characterized in that: the steel pipe concrete top flange (1) is used as the top flange of a roof girder, the honeycomb hole corrugated steel web (2) is used as the web of a roof girder, the honeycomb hole corrugated steel web (2) is a steel web formed by arranging a plurality of hexagonal strip honeycomb hole steel plates according to a certain distance and performing waveform bending processing, the prestressed steel pipe concrete core rod lower flange (3) is used as the bottom flange of the roof girder, the prestressed steel pipe concrete core rod lower flange (3) is composed of an outer steel pipe (31), in-pipe concrete (32) and prestressed steel bars (33), the outer steel pipe (31) is filled with in-pipe concrete (32) in a closely-packed manner, and the prestressed steel bars (33) are uniformly arranged in the in-pipe concrete (32); horizontal flange surfaces of an upper channel steel connecting piece (4) and a lower channel steel connecting piece (5) are respectively connected with upper and lower longitudinal through lengths of a honeycomb hole corrugated steel web (2) in a welding mode, a concrete filled steel tube upper flange (1) is connected with a groove opening of the upper channel steel connecting piece (4) in a welding mode, a prestressed concrete filled steel tube core rod lower flange (3) is connected with a groove opening of the lower channel steel connecting piece (5) in a welding mode, and end sealing steel plates (6) are arranged at two ends of a roof girder; the concrete-filled steel tube upper flange (1), the honeycomb-hole corrugated steel web (2) and the prestressed concrete-filled steel tube core rod lower flange (3) are welded and connected into a whole through an upper channel steel connecting piece (4) and a lower channel steel connecting piece (5) to form a roof girder, a plurality of transverse steel supports (7) are arranged between the roof girders, and an upper flange horizontal steel tie bar (8) and a lower flange horizontal steel tie bar (9) are arranged between the roof girders in the combined structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123109813.9U CN218346555U (en) | 2021-12-10 | 2021-12-10 | Honeycomb hole corrugated steel web's integrated configuration roofing girder |
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| CN202123109813.9U CN218346555U (en) | 2021-12-10 | 2021-12-10 | Honeycomb hole corrugated steel web's integrated configuration roofing girder |
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