CN220133089U - Prestress rib beam plate combined structure system - Google Patents

Prestress rib beam plate combined structure system Download PDF

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Publication number
CN220133089U
CN220133089U CN202320196496.9U CN202320196496U CN220133089U CN 220133089 U CN220133089 U CN 220133089U CN 202320196496 U CN202320196496 U CN 202320196496U CN 220133089 U CN220133089 U CN 220133089U
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steel
concrete
double
girder
shaped
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CN202320196496.9U
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姜朋
杨峰
耿俊迪
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Ningbo Excellent Building Technology Co ltd
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Ningbo Excellent Building Technology Co ltd
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Abstract

The utility model provides a prestressing force rib beam slab integrated configuration system, includes steel pipe concrete column, U-shaped combination steel girder, steel secondary frame roof beam and double beam slab composite floor, steel pipe concrete column comprises outer steel pipe and interior concrete filling, U-shaped steel girder includes double web, top flange, bottom plate and concrete, U-shaped steel girder in steel pipe concrete column welded connection, double beam slab composite floor includes double beam precast slab and post-cast steel reinforced concrete, double beam precast slab both ends respectively with U-shaped steel girder fixed connection, steel secondary frame roof beam with steel pipe concrete column welded connection, and be parallel to double beam precast slab span direction is arranged, double beam precast slab U-shaped steel girder the steel secondary roof beam is through post-cast steel reinforced concrete with concrete in the U-shaped steel girder is pour as an organic wholely. The double beam plates are used in the large-span direction, the secondary frame beams are variable-section beams, the height of the large-span direction beams is small, the layer height is reduced, the main body of the double beam plate combined structure system is mainly of a steel structure, the allowable deformation is large, and the section of the column can be reduced.

Description

Prestress rib beam plate combined structure system
Technical Field
The utility model relates to the field of building structures, in particular to a prestress rib beam plate combined structure system.
Background
The multi-layer or low-layer large-span building generally adopts a concrete frame structure system, and has the problems of small allowable displacement, large column section, large reinforcement and the like when compared with a steel structure system under the condition of the same earthquake intensity and load working condition. The pure steel structure mainly adopts a steel secondary beam combined floor system, namely, vertical load is transmitted to a steel main beam through the steel secondary beam, and then the steel main beam is transmitted to a column, so that the problems of large steel consumption, high manufacturing cost and the like exist. A low-cost structural system for bearing vertical force and horizontal force by a steel combined frame by adopting a prestressed concrete floor is not reported.
Disclosure of Invention
The technical problem to be solved by the utility model is to overcome the defects in the prior art and provide a prestress rib beam plate combined structure system.
The utility model provides a prestress rib beam plate combined structure system, which comprises a steel pipe concrete column, a U-shaped steel and concrete combined girder, a steel secondary frame beam and a reinforced concrete double-beam plate laminated floor slab, wherein the steel pipe concrete column is formed by an outer steel pipe and an inner pouring concrete, the outer steel pipe is circular or rectangular, the U-shaped steel and concrete combined girder comprises a double web plate, an upper flange, a bottom plate and concrete, the double web plate is formed by two vertical steel plates, the lower ends of the two vertical steel plates are welded with the bottom plate to form a U-shaped cavity, a plurality of U-shaped steel corbels are welded on the outer side surface of the double web plate, the upper flange is welded on the upper end of the double web plate respectively, a drawknot piece welded between the two upper flanges at a certain distance is longitudinally arranged between the two upper flanges, the U-shaped steel and the concrete combined girder is welded with the steel pipe concrete column, the reinforced concrete double-beam plate laminated floor slab comprises a plurality of double-beam precast slabs and rear pouring steel bars, the double-beam precast slabs comprise flat plates and rib beams, the rib beams are arranged in parallel to the flat plates, the lower ends of the flat plates are arranged in parallel to the precast concrete precast slabs, the U-shaped steel beams are embedded in the steel girders and the U-shaped steel beams are arranged in parallel to the U-shaped steel frame steel composite girder, the U-shaped steel bridge beam and the steel bridge beam is arranged in parallel to the two ends of the steel frame and the steel composite girder.
The double webs at the lower part in the U-shaped steel bracket are provided with concrete overflow holes, and concrete is filled between the end parts of the double-beam precast slabs and the double webs.
The inner side of the U-shaped combined steel main beam is buried with a curve prestress steel strand, and the curve is parabolic with an upward opening.
The prestress steel strand consists of an upper row of steel strands and a lower row of steel strands, and the upper row of steel strands and the lower row of steel strands are respectively buried in the upper part and the lower part of the rib beam.
At least one group of transverse trusses is arranged between two rib beams of the double-beam precast slab.
The post-cast steel bar concrete comprises cast-in-situ concrete, net piece ribs and hogging moment steel bars, and the net piece ribs are buried in the cast-in-situ concrete.
The H-shaped steel section of the steel secondary frame beam is a variable section.
The steel secondary frame beams are arranged at least in compartments.
And a column support is arranged at a proper position of the frame parallel to the span direction of the steel secondary frame beam, and the column support can adopt an X-shaped, door-shaped or buckling restrained brace.
Compared with the prior art, the prestress rib beam plate combined structure system provided by the utility model has the following advantages:
1. the main body of the double-beam-plate combined structure system takes a steel structure as a main body, so that the allowable deformation is large, and the section of the column can be reduced;
2. the double beam plates are used in the large-span direction, the secondary frame beams are variable-section beams, and the height of the large-span direction beams is small, so that the layer height is reduced.
3. The characteristics of large bearing capacity of the steel pipe concrete, large allowable deformation of the steel frame, large span of the prestressed superposed floor, low manufacturing cost and convenient hoisting are fully exerted, and the structural system has high cost performance.
Drawings
FIG. 1 is a schematic diagram of a combined structural system according to the present utility model.
Fig. 2 is a plan view of a steel main beam of the composite structural system of the present utility model.
FIG. 3 is a schematic view of a double beam plate of the composite structural system of the present utility model.
FIG. 4 is a schematic node diagram of the composite architecture of the present utility model.
FIG. 5 is a schematic view of a dual beam slab transverse truss of the composite structural system of the present utility model.
FIG. 6 is a plan view of a composite structural system of the present utility model.
FIG. 7 is a schematic diagram of the inter-column support of the composite structure system of the present utility model.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1 to 7, in the embodiment of the prestress rib beam plate combined structure system provided by the utility model, the prestress rib beam plate combined structure system comprises a steel pipe concrete column 1, a U-shaped steel and concrete combined girder 2, a steel secondary frame beam 3 and a reinforced concrete double-beam plate laminated floor 4, wherein the steel pipe concrete column 1 consists of an outer steel pipe 11 and an inner poured concrete 12, the outer steel pipe 11 is round or rectangular, the U-shaped steel and concrete combined girder 2 comprises a double-web 21, an upper flange 22, a bottom plate 23 and a concrete 24, the double-web 21 consists of two vertical steel plates, the lower ends of the two vertical steel plates are welded with the bottom plate 23 to form a U-shaped cavity, a plurality of U-shaped steel corbels 26 are welded on the outer side surface of the double-web 21, the upper ends of the double-web 21 are respectively welded with the upper flange 22, a drawknot 25 welded with a certain distance is longitudinally arranged between the two upper flanges 22, the U-shaped steel and concrete combined girder 2 is welded with the steel pipe concrete column 1, the reinforced concrete double-beam slab stacked floor 4 comprises a plurality of double-beam precast slabs 41 and post-cast reinforced concrete 42, the double-beam precast slabs 41 comprise a flat plate 411 and two rib beams 412, the rib beams 412 are arranged in parallel on the lower side of the flat plate 411 in a longitudinal direction, prestressed steel strands 413 and net piece stirrups 414 are embedded in the rib beams 412, two ends of the double-beam precast slabs 41 are respectively placed on the U-shaped steel brackets 26 of the U-shaped steel and concrete combined girder 2, the steel secondary frame beams 3 are H-shaped steel, the end parts of the steel secondary frame beams are connected with the steel pipe concrete columns 1 and are parallel to the span direction of the double-beam precast slabs 41, the U-shaped steel and concrete combined girder 2, and the steel secondary frame beams 3 are integrally cast through the post-cast reinforced concrete 42 and the U-shaped steel and the concrete 24 in the concrete combined girder 2. The structure system adopts the double-beam precast slab embedded with the prestress steel strands as a beam slab component, thereby reducing the number of secondary beams and the beam height, and the U-shaped steel and concrete combined main beam is used as a die and a structural stress component, so that the comprehensive cost of the system is greatly reduced.
Referring to fig. 1 to 5, in an embodiment of a prestress rib beam plate combined structure system provided by the utility model, a concrete overflow hole 27 is formed in the double web plate 21 at the inner lower part of the U-shaped steel bracket 26, and concrete is filled between the end part of the double beam precast slab 41 and the double web plate 21. The concrete overflow holes 27 can enable concrete to flow from the inside of the girder to the steel corbel through the holes when the girder is poured, so that the node integrity is improved.
Referring to fig. 1 to 5, in an embodiment of a prestress rib plate combined structure system provided by the utility model, a curve prestress steel strand 211 is buried inside the U-shaped combined steel and concrete combined girder 2, and the curve is parabolic with an upward opening. And the steel strand is laid in a post-tensioning prestress mode, so that the structural bearing capacity is improved.
Referring to fig. 1 to 5, in an embodiment of a prestressed rib plate composite structure system according to the present utility model, the prestressed steel strands are composed of an upper row of steel strands 4132 and a lower row of steel strands 4131, and the upper row of prestressed steel strands 4132 and the lower row of prestressed steel strands 4131 are respectively buried in the upper portion and the lower portion of the rib beam 412. The upper row of prestressed steel strands 4132 is a balance steel bar, the placing plate arches upwards, and the lower row of prestressed steel strands 4131 is beneficial to improving the bearing capacity of the plate.
Referring to fig. 1 to 5, in an embodiment of a prestressed rib-slab composite structure system according to the present utility model, at least one set of transverse trusses 415 is disposed between two of the rib beams 412 of the double-beam precast slab 41. The transverse truss 415 solves both the planar stability problem and the deformation coordination problem of the rib beam 412.
Referring to fig. 1 to 5, in an embodiment of a prestressed rib slab composite structure system according to the present utility model, the post-cast steel reinforced concrete 42 includes a cast-in-situ concrete 421, a mesh rib 422 and a hogging moment steel bar 423, where the mesh rib 422 is embedded in the cast-in-situ concrete 421. The post-cast steel bar concrete 42 effectively improves structural integrity.
Referring to fig. 1 to 5, in an embodiment of a prestress rib plate composite structure system provided by the utility model, the H-shaped steel section of the steel secondary frame beam 3 is a variable section. The cross-sectional dimensions are optimized.
Referring to fig. 1-5, in an embodiment of a pre-stressed ribbed slab composite structural system according to the present utility model, the steel secondary frame beams 3 are arranged at least compartmentally. The number of steel secondary beams 3 is reduced.
Referring to fig. 1 to 5, in an embodiment of a prestress rib plate combined structure system provided by the utility model, a column support 5 is arranged at a proper position of a frame parallel to the span direction of the steel secondary frame beam 3, and the column support can adopt an X-shaped, door-shaped or buckling-restrained brace. The rigidity and the strength of the structure in the horizontal direction are ensured.
In the present utility model, all "a certain height, a certain distance" means a length necessary for satisfying design requirements, that is, a length necessary for adapting to connection and strength requirements, which is clear to a person skilled in the art, and is set as required.

Claims (9)

1. A combined structure system of prestressed rib beam and slab comprises a steel pipe concrete column, a U-shaped steel and concrete combined girder, a steel secondary frame beam and a reinforced concrete double beam slab laminated floor slab, and is characterized in that
The steel pipe concrete column consists of an outer steel pipe and an inner poured concrete, the outer steel pipe is round or rectangular in shape,
the U-shaped steel and concrete combined girder comprises a double web plate, an upper flange, a bottom plate and concrete, wherein the double web plate consists of two vertical steel plates, the lower ends of the two vertical steel plates are welded with the bottom plate to form a U-shaped cavity, the outer side surface of the double web plate is welded with a plurality of U-shaped steel corbels, the upper ends of the double web plate are respectively welded with the upper flange, drawknot pieces are welded between the two upper flanges at a certain distance in the longitudinal direction, the U-shaped steel and concrete combined girder is welded and connected with a steel pipe concrete column,
the reinforced concrete double-beam slab laminated floor slab comprises a plurality of double-beam precast slabs and post-cast reinforced concrete, the double-beam precast slabs comprise a flat plate and two rib beams, the two rib beams are arranged in parallel on the longitudinal lower side of the flat plate, prestressed steel strands and net sheet stirrups are buried in the rib beams, two ends of the double-beam precast slabs are respectively placed on the U-shaped steel corbels of the U-shaped steel and concrete combined girder,
the steel secondary frame beam is H-shaped steel, the end part of the steel secondary frame beam is connected with the steel pipe concrete column and is arranged parallel to the span direction of the double-beam precast slab,
the double-beam precast slab, the U-shaped steel and concrete combined main beam and the steel secondary frame beam are cast into a whole through the post-cast reinforced concrete and the concrete in the U-shaped steel and concrete combined main beam.
2. The prestress rib beam plate combined structure system of claim 1, wherein the double webs at the lower part of the U-shaped steel corbel are provided with concrete overflow holes, and concrete is filled between the ends of the double beam precast slabs and the double webs.
3. The prestress rib plate combined structure system of claim 1, wherein curve prestress steel strands are buried in the inner side of the U-shaped combined steel girder, and the curve is parabolic with upward openings.
4. The prestressed rib plate composite structure system of claim 1, wherein said prestressed steel strands are comprised of an upper row of steel strands and a lower row of steel strands, said upper row of steel strands and said lower row of steel strands being buried in said rib beam upper portion and lower portion, respectively.
5. A prestressed rib slab composite structure system as recited in claim 1, wherein at least one set of transverse trusses is disposed between two of said ribs of said double beam precast slab.
6. The prestressed rib girder composite structural system of claim 1, wherein said post-cast steel reinforced concrete comprises cast-in-situ concrete, net sheet ribs and hogging moment steel bars, said net sheet ribs being embedded in said cast-in-situ concrete.
7. A prestressed rib girder composite structural system as claimed in claim 1, wherein said steel subframe girder has an H-shaped steel section of variable cross section.
8. A prestressed rib girder composite structural system as claimed in claim 1, wherein said steel subframe girders are arranged at least in compartments.
9. A prestressed rib girder composite structural system as claimed in claim 1, wherein a column brace is provided at a proper position of a frame parallel to the span direction of said steel sub-girder, said column brace being an X-shaped, portal-shaped or buckling-restrained brace.
CN202320196496.9U 2023-02-08 2023-02-08 Prestress rib beam plate combined structure system Active CN220133089U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320196496.9U CN220133089U (en) 2023-02-08 2023-02-08 Prestress rib beam plate combined structure system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320196496.9U CN220133089U (en) 2023-02-08 2023-02-08 Prestress rib beam plate combined structure system

Publications (1)

Publication Number Publication Date
CN220133089U true CN220133089U (en) 2023-12-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320196496.9U Active CN220133089U (en) 2023-02-08 2023-02-08 Prestress rib beam plate combined structure system

Country Status (1)

Country Link
CN (1) CN220133089U (en)

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