CN212715494U - Steel pipe concrete column combined shear wall - Google Patents
Steel pipe concrete column combined shear wall Download PDFInfo
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- CN212715494U CN212715494U CN202020281063.XU CN202020281063U CN212715494U CN 212715494 U CN212715494 U CN 212715494U CN 202020281063 U CN202020281063 U CN 202020281063U CN 212715494 U CN212715494 U CN 212715494U
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Abstract
The utility model discloses a concrete filled steel tube column combination shear wall, concrete filled steel tube column combination shear wall include shear force wall body, top reinforced concrete roof beam and basic reinforced concrete roof beam, and this internal a plurality of vertical muscle and the first stirrup that are equipped with of shear force wall, the periphery of first stirrup is equipped with the second stirrup, and this internal both sides border department of shear force wall is equipped with a plurality of concrete filled steel tube columns, and the inside packing of concrete filled steel tube column has the concrete. Use steel core concrete column to compare with traditional reinforced concrete wall body as boundary element's combination wall body, have mechanical properties such as excellent antidetonation, pressure-bearing and deformability, be applicable to the high-rise building wall body, can improve the use of high-strength concrete in the high-rise building wall body, and this internal first stirrup that will disperse through the second stirrup of shear force wall connects and forms a whole, make the shear force wall body have the bigger ability of resisting oblique crack development and bearing load, this utility model is used for shear force wall technical field.
Description
Technical Field
The utility model relates to a shear force wall technical field especially relates to a concrete filled steel tube column combined shear wall.
Background
The traditional reinforced concrete wall is used for high-rise buildings due to high transverse rigidity and strength, but the reinforced concrete wall shows lower ductility and limited deformability under high axial compression ratio, and two methods are mainly adopted for solving the problem of low ductility and deformability of the reinforced concrete wall in the high-rise buildings in the traditional way: (1) limiting the axial compression ratio, which is commonly adopted in the existing earthquake-resistant design specifications, wherein the specifications stipulate that the design axial compression ratio of a high-rise building should be less than 0.5, but the adoption of the method can cause the size of the wall to be increased, and particularly in the lower layers of the high-rise building, the increased size of the wall occupies a large amount of available building area; (2) changing the configuration and reinforcement of the wall, particularly the boundaries of the wall, can be accomplished by providing closely spaced transverse reinforcement bars (or stirrups) that secure the concrete to provide the concrete with sufficient load bearing capacity, however, the core concrete does not provide its full load bearing capacity due to the "arching effect" that occurs when the concrete is compressed.
At present, in the reinforced concrete wall of a high-rise building, the comprehensive performance of high-strength concrete is better than that of common-strength concrete because it can: (1) reducing component size by increasing strength, weight ratio, and stiffness of the structure; (2) the carbon content of the building is reduced, and the sustainability of the material is enhanced; (3) the maximum utilization rate of the building area is realized. However, the application of high-strength concrete in reinforced concrete walls has been very rare due to the brittleness of the high-strength concrete. Although ductility may be improved by providing confining pressure by installing stirrups, its effectiveness decreases as the strength of the concrete increases. Therefore, when the concrete strength is more than or equal to 80MPa, in order to restore the ductility level which can be used for actual wall construction, the content of the needed stirrups is increased, and the pouring quality of the concrete cannot be ensured. Therefore, the use of high-strength concrete in conventional reinforced concrete walls is not suitable. In addition, when the stirrup of the traditional reinforced concrete wall is buckled, the constraint action on the concrete core is obviously reduced, so that the concrete is seriously peeled off, and the traditional concrete wall cannot bear larger axial load acting on the top of the wall. How to improve the use of high-strength concrete in a high-rise building wall, namely, how to improve the mechanical properties of the wall, such as earthquake resistance, pressure bearing capacity, deformability and the like, when the concrete strength exceeds 80MPa in the actual wall construction, is a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a concrete filled steel tube column composite shear wall, can improve mechanical properties such as the antidetonation of wall body, pressure-bearing and deformability, improve the use of high-strength concrete in the high-rise building wall body.
According to the embodiment of the utility model, a concrete filled steel tube column combined shear wall is provided, including shear force wall body, top reinforced concrete roof beam and basic reinforced concrete roof beam are located respectively the upper portion and the lower part of shear force wall body, this internal first stirrup that is equipped with a plurality of longitudinal reinforcement and a plurality of dispersion of shear force wall, the periphery of first stirrup is equipped with the second stirrup, the second stirrup is connected respectively first stirrup, this internal both sides border department of shear force wall is equipped with a plurality of concrete filled steel tube columns, the inside packing of concrete filled steel tube column has the concrete.
According to the embodiment of the utility model provides a concrete filled steel tube column combination shear wall, the upper end and the lower extreme of concrete filled steel tube column insert respectively in top reinforced concrete roof beam and the basic reinforced concrete roof beam, the upper end of concrete filled steel tube column with the part and the lower extreme of top reinforced concrete roof beam contact with the part of basic reinforced concrete roof beam contact all is equipped with the cuff.
According to the embodiment of the utility model provides a concrete filled steel tube column combination shear wall, the concrete filled steel tube column adopts the double tube, the double tube includes outer tube and inner tube, outer tube and inner tube are the steel pipe, the periphery of outer tube is equipped with fibre reinforced composite parcel layer, fill the concrete between outer tube and the inner tube.
According to the utility model discloses concrete filled steel tubular column combination shear wall, concrete filled steel tubular column's cross sectional shape is circular, oval, rectangle or square.
According to the utility model discloses concrete filled steel tube column combination shear wall, this internal every side boundary of shear wall is equipped with two and stands by the concrete filled steel tube column, two have the interval between the concrete filled steel tube column.
According to the embodiment of the utility model provides a concrete filled steel tube column combined shear wall, the inside concrete of filling of concrete filled steel tube column is machine-made sand concrete, slag sand, slag stone concrete or expanded concrete.
According to the utility model discloses steel pipe concrete column combination shear wall, mechanism sand concrete is made by the natural sand in the mechanism sand substitution concrete in proportion, steel slag sand, steel slag stone concrete are made by steel slag sand and steel slag stone substitute respectively the small stone and the big stone in the concrete.
According to the utility model discloses concrete filled steel tube column combination shear wall, mechanism sand concrete is replaced the natural sand in the concrete by the mechanism sand according to 50% proportion and is made.
According to the utility model discloses concrete filled steel tubular column composite shear wall, first stirrup and second stirrup constitute by ordinary single limb hoop.
Has the advantages that: the steel tube concrete column combined shear wall has the advantages that the steel tube concrete columns at the boundaries of the two sides in the shear wall body can effectively restrain concrete in the web plate of the shear wall body and provide better connection between the web plate of the shear wall body and the boundaries, compared with the traditional reinforced concrete wall body, the combined wall body taking the steel tube concrete columns as boundary elements has excellent mechanical properties such as shock resistance, pressure bearing capacity, deformation capacity and the like, is suitable for high-rise building walls, can improve the use of high-strength concrete in the high-rise building walls, and is connected with the dispersed first stirrups into a whole through the second stirrups in the shear wall body, so that the shear wall body has higher capability of resisting the development of inclined cracks and bearing loads.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
FIG. 1 is a front view of a concrete filled steel tubular column composite shear wall according to an embodiment of the present invention;
FIG. 2 is a side cross-sectional view of a concrete filled steel tubular column composite shear wall according to an embodiment of the present invention;
fig. 3 is a top cross-sectional view of a shear wall body according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a concrete filled steel tubular column with a circular cross-section and using double-layer tubes according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a concrete filled steel tubular column with a square cross section, the concrete filled steel tubular column being made of double-layer tubes according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a concrete filled steel tubular column according to an embodiment of the present invention, in which a single-layer tube is used and a fiber reinforced composite material wrapping layer is disposed;
FIG. 7 is a schematic structural view of a concrete filled steel tubular column with a single-layer tube and a circular cross-section according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a concrete filled steel tubular column with a single-layer tube and an oval cross-section according to an embodiment of the present invention;
FIG. 9 is a schematic structural view of a concrete filled steel tubular column according to an embodiment of the present invention, which is a single-layer tube and has a rectangular cross-section;
FIG. 10 is a schematic structural view of a concrete filled steel tubular column with a square cross section, which is made of a single-layer tube, according to an embodiment of the present invention;
reference numerals: the shear wall comprises a shear wall body 10, a top reinforced concrete beam 20, a foundation reinforced concrete beam 30, a first stirrup 40, a second stirrup 50, a steel pipe concrete column 60, an outer pipe 61, an inner pipe 62 and a fiber reinforced composite material wrapping layer 63.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1-3, the embodiment of the utility model provides a steel core concrete column composite shear wall, including shear force wall body 10, top reinforced concrete beam 20 and basic reinforced concrete beam 30, the upper portion and the lower part of shear force wall body 10 are located respectively to top reinforced concrete beam 20 and basic reinforced concrete beam 30, be equipped with the first stirrup 40 of a plurality of longitudinal reinforcement and a plurality of dispersion in the shear force wall body 10, the periphery of first stirrup 40 is equipped with second stirrup 50, each first stirrup 40 is connected to second stirrup 50, both sides border department in the shear force wall body 10 is equipped with a plurality of steel core concrete columns 60, the inside packing of steel core concrete column 60 has the concrete.
In the steel tube concrete column combined shear wall of the embodiment, the steel tube concrete columns 60 at the boundaries of the two sides in the shear wall body 10 can effectively restrain the concrete in the web plate of the shear wall body 10, and provide better connection between the web plate and the boundaries of the shear wall body 10. In addition, the steel pipe concrete column 60 has the characteristics of large vertical bearing capacity and strong deformability, and can resist the lateral load action at the boundary of the shear wall body 10 when being arranged at the boundary, and a reinforcing area is formed at the boundary of the wall body due to the arrangement of the steel pipe concrete column 60. And because the existence of the steel tube concrete column 60, the cracking cracks of the connection areas between the shear wall body 10 and the top reinforced concrete beam 20 and the foundation reinforced concrete beam 30 become small, and because the existence of the steel tube concrete column 60, the ductility of the shear wall is increased, and the deformation capacity is enhanced.
Therefore, compared with the traditional reinforced concrete wall, the combined wall taking the steel pipe concrete columns 60 as boundary elements has excellent mechanical properties such as earthquake resistance, pressure bearing capacity and deformation capacity, is suitable for the high-rise building wall, and can improve the use of high-strength concrete in the high-rise building wall.
The first stirrup 40 of dispersion leads to the wall body to form local partitioning crack easily, makes wall body dispersion atress, reduces the mechanical properties of shear force wall body 10, in this embodiment, connects the first stirrup 40 of inside dispersion at the periphery through second stirrup 50 and forms a whole, prevents that the little local destruction of different degrees from appearing in the wall body, makes shear force wall body 10 have bigger resistance inclined crack development and bear the ability of loading. Specifically, the first stirrup 40 and the second stirrup 50 are each constituted by a common single limb hoop.
Specifically, two parallel steel pipe concrete columns 60 are arranged on each side boundary in the shear wall body 10, a space is formed between the two steel pipe concrete columns 60, and concrete is filled in the space, so that the two steel pipe concrete columns 60 are connected completely and can play a role respectively.
In this embodiment, the upper end and the lower end of the steel core concrete column 60 are inserted into the top reinforced concrete beam 20 and the foundation reinforced concrete beam 30, respectively, and the portion of the upper end of the steel core concrete column 60 contacting the top reinforced concrete beam 20 and the portion of the lower end contacting the foundation reinforced concrete beam 30 are provided with collars. The contact parts of the steel tube concrete column 60 and the two end beams are restrained by the hoops, so that the connection strength of the steel tube concrete column 60 and the two end beams is improved, the steel tube concrete column 60 can be prevented from end buckling damage to a greater extent, the damage form of the steel tube concrete column 60 is changed, and the bearing capacity of the steel tube concrete column 60 and the shear wall body 10 is improved.
The top reinforced concrete beam 20 and the foundation reinforced concrete beam 30 are formed by pouring longitudinal bars, stirrups and concretes with different strength grades.
Referring to fig. 4 to 10, the cross-sectional shape of the concrete filled steel tubular column 60 may be circular, oval, rectangular, square, or the like.
In some embodiments, the steel pipe concrete column 60 is a double-layer pipe, and referring to fig. 4 and 5, the double-layer pipe includes an outer pipe 61 and an inner pipe 62, both of which are steel pipes, wherein a Fiber Reinforced Plastic (FRP) wrapping layer 63 is disposed on the outer periphery of the outer pipe 61, and concrete is filled between the outer pipe 61 and the inner pipe 62. Adopt the double tube, and outer tube periphery sets up fibre reinforced composite material parcel layer 63, can improve the structural strength of steel core concrete column 60. It will be appreciated that the steel pipe concrete column 60 may also be a single layer pipe, and with reference to fig. 6-10, the outer periphery of the single layer pipe may also be provided with a fiber reinforced composite wrapping 63, see fig. 6. Specifically, the fiber reinforced composite material wrapping layer 63 is made of FRP cloth or FRP pipe.
The combined wall body taking the single-layer steel pipe concrete column, the double-layer steel pipe concrete column, the steel pipe concrete-FRP constraint concrete column and the like as boundary elements has excellent anti-seismic performance and larger ductility and bearing capacity in combination.
In this embodiment, the concrete filled in the concrete filled steel tubular column 60 is machine-made sand concrete, steel slag sand, steel slag stone concrete or expansive concrete. The machine-made sand concrete is prepared by replacing natural sand in concrete with machine-made sand according to a proportion, and the optimal proportion is 50% according to a test; the steel slag sand and the steel slag stone concrete are respectively prepared by replacing small stones and large stones in the concrete with the steel slag sand and the steel slag stone; the expansive concrete can improve the bonding force between the internal concrete and the steel pipe. The combination of the three concrete materials and the steel pipe has the characteristics of environmental protection, low energy consumption and high bearing capacity, and the bearing capacity and the deformability are guaranteed to be constructed, and the standard of an environment-friendly building is achieved.
The method for manufacturing the concrete filled steel tube column combined shear wall comprises the following construction steps:
s1, binding and fixing longitudinal bars and stirrups of a foundation reinforced concrete beam 30, and reserving an insertion space required by a steel pipe concrete column 60 at a boundary;
s2, determining the height of the foundation reinforced concrete beam 30, fixing steel pipes of the steel pipe concrete column 60, and uniformly arranging hoops in the range that the bottom of each steel pipe is consistent with the height of the foundation reinforced concrete beam 30;
s3, binding and fixing the longitudinal bars, the first stirrups 40 and the second stirrups 50 of the shear wall body 10, wherein the second stirrups 50 bind all the first stirrups 40 and the longitudinal bars to form a whole;
s4, determining the height of the top reinforced concrete beam 20, binding and fixing longitudinal bars and stirrups of the top reinforced concrete beam 20, and arranging hoops in the range that the heights of the upper part of the steel pipe and the top reinforced concrete beam 20 are consistent;
s5, fixing the template, determining the concrete strength of the foundation reinforced concrete beam 30, the shear wall body 10, the top reinforced concrete beam 20 and the concrete filled in the steel pipe, and pouring the concrete with different strengths in different regions.
The type of concrete in the concrete filled steel tubular column 60 can be adjusted as required, the concrete can be selected from machine-made sand concrete, steel slag sand, steel slag stone concrete and expanded concrete, and the distance between the concrete filled steel tubular columns 60 and the section shape of the concrete filled steel tubular column 60 can be changed so as to meet the requirements of different engineering projects on the bearing capacity and the damage form of the wall body.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. The utility model provides a concrete filled steel tube column combination shear wall which characterized in that: including shear force wall body, top reinforced concrete roof beam and basic reinforced concrete roof beam are located respectively the upper portion and the lower part of shear force wall body, this internal first stirrup that is equipped with a plurality of vertical muscle and a plurality of dispersion of shear force wall, the periphery of first stirrup is equipped with the second stirrup, the second stirrup is connected respectively first stirrup, this internal both sides border department of shear force wall is equipped with a plurality of steel core concrete columns, the inside packing of steel core concrete column has the concrete.
2. The steel pipe concrete column composite shear wall of claim 1, wherein: the upper end and the lower extreme of steel core concrete column insert respectively in top reinforced concrete roof beam and the basic reinforced concrete roof beam, the upper end of steel core concrete column with the part of top reinforced concrete roof beam contact and the lower extreme with the part of basic reinforced concrete roof beam contact all are equipped with the cuff.
3. The steel pipe concrete column composite shear wall of claim 1, wherein: the steel tube concrete column adopts double-layer pipes, the double-layer pipes comprise outer pipes and inner pipes, the outer pipes and the inner pipes are steel pipes, fiber reinforced composite material wrapping layers are arranged on the peripheries of the outer pipes, and concrete is filled between the outer pipes and the inner pipes.
4. The steel pipe concrete column composite shear wall of claim 1, wherein: the cross section of the steel tube concrete column is circular, oval, rectangular or square.
5. The steel pipe concrete column composite shear wall of claim 1, wherein: and two parallel steel pipe concrete columns are arranged on each side boundary in the shear wall body, and a space is reserved between the two steel pipe concrete columns.
6. The steel pipe concrete column combined shear wall according to any one of claims 1 to 5, characterized in that: the concrete filled in the steel tube concrete column is machine-made sand concrete, steel slag sand, steel slag stone concrete or expansive concrete.
7. The steel pipe concrete column composite shear wall of claim 1, wherein: the first stirrup and the second stirrup are both formed by common single-limb hoops.
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| CN202020281063.XU CN212715494U (en) | 2020-03-09 | 2020-03-09 | Steel pipe concrete column combined shear wall |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111335509A (en) * | 2020-03-09 | 2020-06-26 | 广州大学 | Steel pipe concrete column combined shear wall and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111335509A (en) * | 2020-03-09 | 2020-06-26 | 广州大学 | Steel pipe concrete column combined shear wall and construction method |
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