CN210946890U

CN210946890U - Floor system comprising box-shaped beams

Info

Publication number: CN210946890U
Application number: CN201921738395.XU
Authority: CN
Inventors: 柳红滨
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-07-07
Anticipated expiration: 2029-10-14

Abstract

The utility model relates to a superstructure system containing box girder, including stand, cap for column, box girder, floor, the cap for column is located the stand top, box girder erects in adjacent two between the cap for column, the floor set up in between the box girder to form a plurality of grid structures, the floor is located in the net. The floor system containing the box-shaped beam of the utility model not only meets the requirement of standard embedding and fixing end for the basement roof, but also effectively saves floor height through the beam-plate structure system stressed by the box-shaped beam, the plate and the column cap together, the beam height is lower than the height of the existing beam floor beam, the excavation amount of the basement is reduced, and the cost is saved; in addition, the web plate of the hollow beam is used as the support of the floor slab, so that the peak value of the bending moment of the floor slab is reduced, the reinforcing bars of the floor slab and the slab span are reduced, the self weight of the structure is reduced, and the structural rigidity is improved. Compared with the common beam-slab system, the structure system has lower comprehensive cost and has better applicability to the basement structure with the embedding requirement in the practical structural application.

Description

Floor system comprising box-shaped beams

Technical Field

The utility model relates to a superstructure system that contains box girder especially relates to a superstructure system suitable for basement and large-span column network structure.

Background

Common floor systems include beam plate structure systems, flat floor systems, haunched large plates, cross beams, unidirectional double secondary beams, unidirectional secondary beams, cross beams, hollow floor systems, and the like. The beam slab structure has the advantages that: 1. the stress is clear; 2. the rigidity of the structure outside the plane is relatively good, and the use is not limited. Disadvantages of the beam-slab structure: 1. because the action of the beam cannot be fully considered according to the classical beam-slab stress theory, the beam section is very large, the floor height of the basement is increased, and the manufacturing cost of the vertical member is increased; 2. the water buoyancy of the bottom plate is increased due to the increase of the layer height, so that the anti-floating cost and the civil engineering cost of the bottom plate are increased; 3. due to the increase of the floor height, the running cost of the basement is increased, for example, the cost of cooling and heating is increased under the same condition. The flat slab structure has the advantages that: compared with a beam-slab structure, the floor height is reduced, so that the civil construction cost and the ordinary running cost of the basement are reduced; the disadvantages are as follows: the structure has poor out-of-plane rigidity and great use limitation, and according to the current structural specification, in areas with earthquake-proof requirements, the basement with the upper building cannot adopt a flat slab structure in the relevant range of the main building, so that the structure can be basically only used for basements without upper buildings.

For basement structures, it is generally desirable to select floor systems with smaller beam heights in consideration of earthwork costs, foundation pit support costs, anti-floating costs, and the like. However, flat floor applications are limited for the embedded portion. For a large-span structure, the section of a concrete beam is large, and the stress of the structure is influenced by the self weight of the concrete beam.

To sum up, because the very high anti superficial that needs of many building projects groundwater level, the earth and rockfill is difficult to balance, and rock foundation excavation is difficult to wait the reason, from the demand in market and the angle of practicing thrift the cost, all hope that the basement excavation is few, nevertheless the engineering that requires basement roof as the built-in end should adopt the beam slab structure by the standard, consequently above-mentioned two kinds of structures do not satisfy the development demand of structure itself.

Disclosure of Invention

The utility model provides a superstructure system containing box girder, solve and can't satisfy clean high restriction of basement and basement roof simultaneously among the prior art and regard as the problem of inlaying the solid end, solve simultaneously that the superstructure construction is complicated and the floor board strides big, the many shortcoming of arrangement of reinforcement.

The utility model relates to a superstructure system containing box girder, include: stand (1), cap (2), box roof beam (3), floor 4, cap (2) are located stand (1) top, box roof beam (3) erect in adjacent two between cap (2), floor 4 set up in between box roof beam (3) to form a plurality of lattice construction, floor 4 is located in the net.

Preferably, the box beam (3) is of a rectangular structure.

Preferably, the box beam (3) is of an inverted trapezoidal structure.

Preferably, the box beam (3) is of a concrete structure or a steel structure.

Preferably, the box beam (3) is a prestressed structural beam.

Preferably, the box beam (3) has a plurality of cavities.

Preferably, the box beam (3) is a variable cross-section beam.

Preferably, the box beam (3) is an armpit beam.

Preferably, the box beams (3) are arranged bidirectionally.

Preferably, the box beams (3) are arranged unidirectionally.

Preferably, the box beam web and the floor slab (4) are rigidly or hingedly connected.

The utility model discloses following beneficial effect has: (1) the beam system can be suitable for the embedded part, and the beam height is lower than that of the existing beam system; (2) the web plate of the hollow beam can be used as a support of the floor slab, so that the peak value of the bending moment of the floor slab is reduced, and the reinforcing bars and the slab span of the floor slab can be reduced; (3) in the building process of the floor system, the hollow box girder can be partially prefabricated, the cost of the template is saved, and the construction period is expected to be accelerated; the rigidity of the groove-shaped part is enhanced in the middle of the groove shape by adopting a mode of adding a partition plate, so that the lifting is convenient; (4) the large-span floor system and the hollow beam can reduce the self weight of the structure and improve the structural rigidity; (5) the torsional rigidity of the hollow beam is higher than that of a conventional beam, so that stronger constraint can be provided for the floor slab, and the deflection and the crack of the floor slab are predicted to be smaller than those of the conventional floor slab; (6) under the condition of the same beam height, the column net can be enlarged, and the building function can be better realized.

The utility model relates to a novel superstructure system, specially adapted basement and large-span post net also can be used to the reinforcement transformation to adding armpit big board, no roof beam floor and big plate structure. The main beams of the conventional floor system such as a large plate structure, a cross beam, a one-way double beam, a one-way secondary beam, a cross beam scheme, a hollow floor system and the like can be replaced by box beams, and can also be completely replaced by box beams. Since the box beam is wider than the column, a cap is required for anchoring the beam. The floor system can be a box girder and large plate structure, a box girder and conventional girder system (cross girder, unidirectional secondary girder, unidirectional double secondary girder, hollow floor, dense rib floor and the like), and a box type primary and secondary girder system.

Drawings

Figure 1 is the utility model discloses superstructure system plane structure sketch map.

Figure 2 is the plan view 1-1 section view of the floor system of the utility model shown in figure 1.

Figure 3 is the plan view 2-2 sectional view of the floor system of the utility model shown in figure 1.

Fig. 4 is a schematic view of a box beam structure having multiple cavities.

Figure 5 is a schematic view of a box beam construction using a variable cross section beam,

figure 6 is a schematic view of a configuration of a laced beam having a haunch configuration.

Fig. 7 is a schematic view of the structural arrangement of the unidirectional laced beam.

Fig. 8 is a calculation model of the floor slab of the present invention.

Figure 9 is the comparison schematic diagram of the floor bending moment diagram of the floor system (box type beam web and floor rigid connection) and the traditional floor system of the utility model.

Fig. 10 is the bending moment diagram of box girder box web and floor rigid connection under the floor computational model of the utility model.

Figure 11 is the comparison schematic view of the floor bending moment diagram of the floor system (box type beam web plate hinged with the floor) and the traditional floor system of the utility model.

Detailed Description

For a further understanding of the present invention, reference will now be made in detail to the embodiments illustrated in the drawings.

The examples are as follows:

referring to fig. 1-3, the utility model discloses a superstructure system containing box girder, include: the column comprises columns 1, column caps 2, box-shaped beams 3 and floor slabs 4, wherein the column caps 2 are positioned at the tops of the columns 1, the box-shaped beams 3 are erected between two adjacent column caps 2 and are arranged in a bidirectional mode, the floor slabs 4 are arranged between the box-shaped beams 3 to form a plurality of grid structures, and the floor slabs 4 are positioned in the grids; the box beam 3 is of a rectangular structure; the box-shaped beam (3) is of a concrete structure or a steel structure; the box girder 3 is a prestressed structural girder.

Referring to fig. 4, the box beam 3 preferably has a plurality of cavities.

Referring to fig. 5, the box beam 3 is preferably a variable section beam.

Referring to fig. 6, preferably, the box beam 3 is an armpit beam. Furthermore, the haunching is a horizontal haunching structure or a vertical haunching structure.

Referring to fig. 7, the box beams can also be arranged in a single direction to form a single-direction hollow beam structure.

Compared with the conventional floor system, the floor system containing the box-shaped beam of the utility model not only meets the requirement of the standard for the embedded end of the basement roof, but also effectively saves the floor height through the beam-slab structural system stressed by the box-shaped beam, the plate and the column cap together, and the beam height is smaller than the existing beam-slab height, thereby reducing the excavation amount of the basement and saving the cost; as can be seen from the attached figures 8-11, the web of the hollow beam can be used as the support of the floor slab, so that the peak value of the floor slab bending moment is reduced, the floor slab reinforcement and the slab span are reduced, the self weight of the structure is reduced, and the structural rigidity is improved. Compared with a common beam-slab system, the structure system is low in comprehensive cost, the problems that the slab-column structure cannot meet the requirements of standard embedding on the basement and a large-chassis multi-tower skirt house are solved, and the structure system has better applicability to the basement structure with the embedding requirement in practical structural application.

In addition, the hollow box girder can be partially prefabricated, the cost of the template is saved, and the construction period is expected to be accelerated; the rigidity of the groove-shaped part is enhanced in the middle of the groove shape by adopting a mode of adding a partition plate, so that the lifting is convenient.

The foregoing description of the embodiments is provided to enable any person skilled in the art to make and use the invention, and it is to be understood that other embodiments may be devised which do not necessarily depart from the spirit and scope of the present invention. Therefore, the present invention is not limited to the embodiments herein, and those skilled in the art should understand that modifications and alterations made without departing from the scope of the present invention.

Claims

1. A floor system comprising box beams, characterized in that: including stand (1), cap (2), box roof beam (3), floor (4), cap (2) are located stand (1) top, box roof beam (3) erect in adjacent two cap (2), floor (4) set up in between box roof beam (3) to form a plurality of lattice construction, floor (4) are located in the net.

2. A floor system comprising box beams according to claim 1, characterised in that: the box-shaped beam (3) is of a rectangular structure.

3. A floor system comprising box beams according to claim 1, characterised in that: the box-shaped beam (3) is of an inverted trapezoidal structure.

4. A floor system comprising box beams according to any of the claims 1-3, characterised in that:

the box-type beam (3) is of a concrete structure, a steel structure or a combined structure.

5. A floor system comprising box beams according to any of the claims 1-3, characterised in that: the box beam (3) is a prestressed structural beam.

6. A floor system comprising box beams according to any of the claims 1-3, characterised in that: the box beam (3) is provided with a plurality of cavities.

7. A floor system comprising box beams according to any of the claims 1-3, characterised in that: the box-type beam (3) is a variable cross-section beam.

8. A floor system comprising box beams according to any of the claims 1-3, characterised in that: the box-shaped beam (3) is an armpit beam.

9. A floor system comprising box beams according to any of the claims 1-3, characterised in that: the box beams (3) are arranged in two directions.

10. A floor system comprising box beams according to any of the claims 1-3, characterised in that: the box beams (3) are arranged in a unidirectional manner.

11. A floor system comprising box beams according to any of the claims 1-3, characterised in that: the box type beam web plate and the floor (4) are rigidly connected or hinged.