CN214302386U - Concrete-filled steel tube bundle combined shear wall with built-in composite confined concrete column - Google Patents
Concrete-filled steel tube bundle combined shear wall with built-in composite confined concrete column Download PDFInfo
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- CN214302386U CN214302386U CN202022198017.6U CN202022198017U CN214302386U CN 214302386 U CN214302386 U CN 214302386U CN 202022198017 U CN202022198017 U CN 202022198017U CN 214302386 U CN214302386 U CN 214302386U
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Abstract
The utility model discloses a built-in compound material confined concrete column's steel pipe concrete bundle composite shear wall, include the composite shear wall body that constitutes by the steel-pipe bundle, the steel-pipe bundle includes a plurality of steel pipe, and the steel pipe internal fixation that is located the tip department of composite shear wall body is provided with fibre reinforced composite material pipe, and when composite shear wall body has two at least wall limbs, the steel pipe that is located the cross section of wall limb also fixes being provided with fibre reinforced composite material pipe, and every steel pipe is intraductal and every fibre reinforced composite material intraductal all is filled with the concrete. The utility model discloses based on fibre reinforced composite confined concrete has good deformability and ductility, has the characteristics of obvious later stage rigidity simultaneously, arranges it in steel-pipe bundle combination shear force wall warp or the great position of atress (like wall end, two wall limb intersections, a plurality of wall limb intersections) one or many places to at the intraductal concrete of packing of fibre reinforced composite, have bearing capacity height, the good characteristics of ductility.
Description
Technical Field
The utility model relates to a novel integrated configuration technical field, concretely relates to concrete filled steel tube bundle combined shear wall of built-in composite material confined concrete post
Background
The shear wall is a wall body which mainly bears horizontal load and vertical load (gravity) caused by wind load or earthquake action in a house or a structure, prevents the structure from being sheared and damaged, and is generally made of reinforced concrete. The existing common concrete shear wall has the defects of poor earthquake resistance and poor ductility, and although measures such as fiber reinforced composite material pipes, reinforcing steel bars and the like are additionally arranged inside the concrete wall body to enhance the earthquake resistance of the invention patent with the publication number of CN105507456A, the following defects still exist: firstly, the external concrete wall is still easy to have large cracks and concrete crushing; secondly, the performance of the fiber reinforced composite pipe and the concrete cannot be fully utilized; and thirdly, construction must be carried out in a cast-in-place mode, and the construction process is complex.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the not enough of above-mentioned ordinary concrete shear force wall, a concrete filled steel tube bundle composite shear force wall of built-in combined material confined concrete post is provided, adopt the steel-pipe bundle to form the shear force wall, and further increase the fibre reinforced composite material pipe in the steel pipe, then all fill the concrete in the steel pipe and the fibre reinforced composite material pipe, through the dual restraint of steel pipe and fibre reinforced composite material pipe, can make performance such as inside concrete intensity strengthened, restrain inside concrete crack development.
The utility model provides a scheme of above-mentioned technical problem is: a steel tube concrete bundle combined shear wall with a built-in composite confined concrete column comprises a combined shear wall body formed by steel tube bundles, wherein each steel tube bundle comprises a plurality of steel tubes, fiber reinforced composite material tubes are fixedly arranged in the steel tubes positioned at the end part of the combined shear wall body, when at least two wall limbs are arranged on the combined shear wall body, the fiber reinforced composite material tubes are also fixedly arranged in the steel tubes positioned at the intersection of the wall limbs, and concrete is filled in each steel tube and each fiber reinforced composite material tube.
Wherein the number of the fiber reinforced composite pipes 1 in a single steel pipe is 1 or more.
Wherein, the fiber reinforced composite material pipe can be replaced by any one of a hoop reinforcement, a spiral reinforcement, discontinuous hoop strips and spiral strips. The annular stirrups, the spiral stirrups, the annular strips and the spiral strips are made of fiber reinforced composite materials or steel materials.
Wherein the steel pipe and the fiber reinforced composite material pipe filled concrete are one of common concrete, high-strength concrete, expanded concrete, fly ash concrete, lightweight aggregate concrete, recycled aggregate concrete, fiber concrete, self-compacting concrete, rubber concrete, ECC (error correction code) and UHPC (ultra high performance concrete); the concrete filled in the interlayer of the steel pipe and the fiber reinforced composite material pipe can be the same as or different from the concrete filled in the fiber reinforced composite material pipe according to the requirement.
The composite material used by the fiber reinforced composite material pipe is one of carbon fiber, glass fiber, aramid fiber and basalt fiber, and the cross sections of the fiber reinforced composite material pipe and the steel pipe can be one of circular, oval, square, rectangular and polygonal.
In the combined shear wall, the inner diameter of the steel pipe at the end part is larger than the inner diameters of the steel pipes at other positions, and the steel pipe at the end part is defined as an end post.
The number of the fiber reinforced composite material pipes arranged in the end post is one or more, and the inner diameter of the fiber reinforced composite material pipes arranged in the end post is larger than the inner diameters of the fiber reinforced composite material pipes positioned at other positions.
Compared with the prior art, the beneficial effects of the utility model are as follows at least:
(1) the steel tube bundle combined shear wall has the advantages that the fiber reinforced composite tube and the steel tube are doubly constrained, so that the performance such as the strength of the concrete in the steel tube bundle combined shear wall is enhanced, the crack development of the concrete in the steel tube bundle combined shear wall is inhibited, and the limit bearing capacity and the ductility index of the combined shear wall can be further improved; steel pipes, concrete and fibre reinforced composite pipes all exert their material properties and show their advantages: the fiber reinforced composite material pipe has the advantages of high tensile strength, constraint of the steel pipe on internal concrete and high compression resistance of the concrete. After the fiber reinforced composite material pipe is added to the steel pipe concrete, the section moment of inertia of the steel pipe concrete is obviously improved, so that the shearing resistance of the combined shear wall is also improved, and the improvement of the seismic performance of the whole shear wall is facilitated. In addition, this novel utility model through at the inside novel combined member that sets up fibre reinforced composite pipe and pour the concrete and form of steel pipe, steel pipe bundle in between steel pipe and the steel pipe welded connection can, have the advantage of operation in batches, assembled construction, can reach the effect of practicing thrift the cost and improving the efficiency of construction. Compare with traditional concrete shear force wall, the utility model discloses have that bearing capacity is high, anti-seismic performance is good, the dead weight is light, the construction is fast, technical advantage such as easy maintenance.
(2) Through implementing the utility model discloses, arrange the fibre reinforced composite pipe in wall end, wall limb cross section, aim at utilizing high strength, ductility and from the reset capability of fibre reinforced composite pipe restraint concrete, can prevent effectively that steel pipe concrete from restrainting the partial destruction that combined shear wall leads to because steel pipe local buckling and concrete crushing in the great position of stress, and by the wall body bulk damage that the partial destruction leads to. And simultaneously, implement the utility model discloses the time, only need with fibre reinforced composite pipe or have other compound material forms of similar restraint effect with appropriate mode temporary fixation in required position, then pour the concrete, construction convenience has also saved the operating expenses.
(3) The utility model discloses with the configuration of fiber reinforced composite pipe in the concrete, can also avoid the poor problem of compound material fire behavior better. Therefore, implement the utility model discloses can not only promote the atress performance of steel pipe bundle combination shear wall, still can promote the high-efficient application of high performance combined material in civil engineering.
Drawings
In order to more clearly illustrate the technical solutions or embodiments of the present invention, the drawings used in describing the technical solutions or embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a perspective view of a linear steel tube concrete bundle combined shear wall with a fiber reinforced composite tube arranged at the end.
Fig. 2 is a schematic plan view of a linear steel tube concrete bundle combined shear wall with a fiber reinforced composite tube arranged at the end.
Fig. 3 is a schematic plan view of an L-shaped concrete filled steel tube bundle composite shear wall with a plurality of fiber reinforced composite tubes inside.
Fig. 4 is a schematic plan view of a T-shaped concrete filled steel tube bundle composite shear wall with a plurality of fiber reinforced composite tubes inside.
Fig. 5 is a schematic plan view of a linear concrete-filled steel tube bundle combined shear wall of an enlarged end post with a fiber-reinforced composite tube inside.
Fig. 6 is a schematic plan view of a linear concrete-filled steel tube bundle composite shear wall with a plurality of fiber reinforced composite tubes built in an enlarged end column.
Fig. 7 is a schematic plan view of a steel-reinforced concrete-filled steel tube bundle composite shear wall with a plurality of fiber-reinforced composite tubes arranged in the end portions.
FIG. 8 is a schematic plan view of a linear concrete filled steel tube bundle composite shear wall with a plurality of steel tube cavities (the number n is more than or equal to 2) at the ends, and fiber reinforced composite tubes are arranged in the steel tube cavities.
Fig. 9 is a schematic view of possible cross-sectional shapes of the tube with the fiber reinforced composite material inside and the steel tube.
Fig. 10 is a perspective view of a fiber reinforced composite tube.
FIG. 11 is a schematic view of a spiral composite strip.
FIG. 12 is a schematic view of a circular composite strip.
Fig. 13 is a schematic view of a spiral composite rib.
Fig. 14 is a schematic view of a circular composite rib.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other to be implemented.
The utility model provides a built-in compound material confined concrete column's steel pipe concrete bundle composite shear wall, include the composite shear wall body that constitutes by the steel-pipe bundle, the steel-pipe bundle includes a plurality of steel pipe 3, and the steel pipe 3 internal fixation that is located the tip department of composite shear wall body is provided with fibre reinforced composite material pipe 1, and when there are two at least wall limbs in composite shear wall body, lie in the steel pipe 3 of the cross section of wall limb and also fix and be provided with fibre reinforced composite material pipe 1, all fill with the concrete in every steel pipe 3 and every fibre reinforced composite material pipe 1. The shear wall is formed by the steel pipe bundles containing the steel pipes, the fiber reinforced composite material pipes are arranged in the shear wall, and the steel pipes and the fiber reinforced composite material pipes can form double restraint on the internal concrete, so that crack development of the internal concrete can be effectively inhibited, and the limit bearing capacity and ductility index of the shear wall are improved.
In detail, in the steel pipes 3 provided with the fiber reinforced composite pipes 1, the number of the fiber reinforced composite pipes 1 in each steel pipe 3 is 1 or more.
In detail, the fiber reinforced composite material pipe 1 may be replaced with any one of a hoop reinforcement, a helical reinforcement, a discontinuous hoop strip, and a helical strip. The materials of the annular stirrups, the spiral stirrups, the annular strips and the spiral strips are fiber reinforced composite materials or steel materials.
During implementation, the fiber reinforced composite material pipe 1 or other replaceable composite material forms are temporarily fixed in the steel pipe 3 in a proper mode, for example, four bolt heads can be welded at equally-divided positions around the top of the inner wall of the steel pipe, two circular nuts are reserved at the other ends of the four bolts, two circular thin steel sheets are reserved in the middle of the two circular nuts, and the nuts at the two sides are screwed down to enable the two circular steel sheets to clamp the pipe wall end of the fiber reinforced composite material pipe 1 so as to fix the fiber reinforced composite material pipe 1.
In detail, the concrete filled in the fiber reinforced composite material pipe 1 and the steel pipe 3 is any one of ordinary concrete, high-strength concrete, expansive concrete, fly ash concrete, lightweight aggregate concrete, recycled aggregate concrete, fiber concrete, self-compacting concrete, rubber concrete, ECC concrete and UHPC concrete.
In detail, the concrete filled in the interlayer between the steel pipe 3 and the fiber reinforced composite material pipe 1 may be the same as or different from the concrete filled in the fiber reinforced composite material pipe 1, for example, the interlayer between the steel pipe and the fiber reinforced composite material pipe 1 is filled with high-strength concrete, and the fiber reinforced composite material pipe 1 is filled with common-strength concrete, so that the performance of the high-strength concrete can be fully utilized, the steel pipe and the fiber reinforced composite material pipe 1 can be effectively utilized to provide ground constraint for the concrete, the performances of the common-strength concrete and the high-strength concrete can be furthest exerted, and stronger compression resistance can be expressed; the concrete filled in the fiber reinforced composite material pipe 1 and the steel pipe 3 at different positions may be the same or different.
In detail, the fiber-reinforced composite material in the fiber-reinforced composite material tube 1 is any one of carbon fiber, glass fiber, aramid fiber, and basalt fiber.
In detail, the cross-sectional shapes of the fiber reinforced composite material pipe 1 and the steel pipe 3 are any one of circular, elliptical, square, rectangular, and polygonal. As shown in fig. 9.
In detail, in the combined shear wall, the inner diameter of the steel pipe 3 located at the end is larger than the inner diameter of the steel pipe 3 located at other positions, and the steel pipe 3 located at the end at this time is defined as an end post. The number of the fiber reinforced composite material pipes 1 arranged in the end post is 1 or more, and the inner diameter of the fiber reinforced composite material pipes 1 arranged in the end post is larger than the inner diameters of the fiber reinforced composite material pipes 1 positioned at other positions.
For the purposes of understanding, the following detailed description is to be read in connection with the accompanying drawings.
Example 1
Referring to fig. 1 and 2, in the embodiment, a steel pipe bundle-type composite shear wall with a built-in fiber reinforced composite pipe is provided, and a fiber reinforced composite pipe 1 is arranged in a steel pipe 3 at a wall end of a wall body of the composite shear wall. The fiber reinforced composite material pipe 1 may be any one of a carbon fiber reinforced composite material pipe (CFRP pipe for short), a glass fiber reinforced composite material pipe (GFRP pipe for short), an aramid fiber reinforced composite material pipe (AFRP pipe for short), and a basalt fiber pipe (BFRP pipe for short).
In the embodiment, the plurality of steel pipes 3 in the steel pipe bundle are welded in sequence and arranged in a straight line, the fiber reinforced composite material pipes 1 are arranged in the steel pipes 3 at the two end portions, and the fiber reinforced composite material pipes 1 are also arranged in the steel pipes 3 near the two end portions in order to further improve the stress performance of the shear wall.
Example 2
Referring to fig. 3 and 4, the present embodiment is different from embodiment 1 in that: a plurality of steel pipe 3 of this embodiment welds in proper order, and the steel-pipe bundle is the dysmorphism and arranges, arranges or T type arranges like the L type, has two wall limbs promptly. One fibre-reinforced composite pipe 1 is arranged in each case in the steel pipe 3 at the end and at the intersection of two wall limbs, as in example 1 with further details.
Example 3
Referring to fig. 5, this embodiment is different from embodiment 1 in that, when a load is large, in order to meet a stress requirement, the steel tube 3 located at the end of the shear wall body may be enlarged, so that the size, i.e., the inner diameter, of the steel tube 3 located at this position is larger than the steel tubes 3 located at other positions, the steel tube 3 located at this position is defined as an end post, and the size, i.e., the inner diameter, of the fiber reinforced composite material tube 1 disposed in the end post is also larger than those at other positions. Therefore, the effect of further enhancing the bearing capacity and the deformability of the end part of the steel tube concrete bundle combined shear wall can be achieved, and other details are the same as those in embodiment 1.
Example 4
Referring to fig. 6 and 7, the embodiment is different from embodiment 1 in that, in consideration of the actual load condition of the steel tube concrete bundle combined shear wall, when the load is large, in order to meet the requirement of stress, a plurality of (the number N of the steel tubes 3 is not less than 2) fiber reinforced composite material tubes 1 may be arranged in the cavity of one steel tube 3 at the wall end, and other details are the same as those in embodiment 1.
Example 5
Referring to fig. 8, a difference between this embodiment and the first embodiment is that, when the load is large, in order to meet the stress requirement, the fiber reinforced composite material pipe 1 may be arranged in a cavity of a plurality of steel pipes (the number N of the steel pipes 3 is not less than 2) at the wall end.
Referring to fig. 11, 12, 13 and 14, in the above embodiment, the fiber reinforced composite pipe 1 may be replaced with any one of a discontinuous circumferential spiral composite strip 5, a circular composite strip 6, a spiral composite rib 7 and a circumferential composite rib 8.
The utility model discloses based on fibre reinforced composite pipe confined concrete has good deformability and ductility, has the characteristics of obvious later stage rigidity simultaneously, arranges it in steel-pipe bundle combination shear force wall warp or the great position of atress (like wall end, two wall limb intersections, a plurality of wall limb intersections) one or more to at the intraductal packing concrete of fibre reinforced composite. Combined shear wall not only has bearing capacity height, the good characteristics of ductility, has obvious later stage rigidity when greatly warping moreover, makes combined shear wall has certain from reset function, can increase the anti ability of collapsing of the wall body when shaking.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention is defined by the appended claims and equivalents thereof, rather than by the foregoing description. All changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the embodiments or claims should not be construed as limiting the claims so far.
Claims (10)
1. The utility model provides a built-in combined shear wall of steel pipe concrete beam of combined material confined concrete post which characterized in that: the composite shear wall comprises a composite shear wall body formed by a steel pipe bundle, wherein the steel pipe bundle comprises a plurality of steel pipes (3), the steel pipes (3) at the end parts of the composite shear wall body are internally and fixedly provided with fiber reinforced composite material pipes (1), when the composite shear wall body is provided with at least two wall limbs, the steel pipes (3) at the cross parts of the wall limbs are also fixedly provided with the fiber reinforced composite material pipes (1), and concrete (2) is filled in each steel pipe (3) and each fiber reinforced composite material pipe (1).
2. The concrete filled steel tube bundle composite shear wall with built-in composite confined concrete column according to claim 1, characterized in that: the number of the fiber reinforced composite tubes (1) in a single steel tube (3) is 1 or more.
3. The concrete filled steel tube bundle composite shear wall with built-in composite confined concrete column according to claim 1, characterized in that: the fiber reinforced composite material pipe (1) can be replaced by any one of a hoop stirrup, a spiral stirrup, a discontinuous hoop strip and a spiral strip.
4. The concrete filled steel tube bundle composite shear wall with built-in composite confined concrete column according to claim 3, characterized in that: the hoop reinforcement, the spiral reinforcement, the discontinuous hoop strips and the spiral strips are made of fiber reinforced composite materials or steel materials.
5. The concrete filled steel tube bundle composite shear wall with built-in composite confined concrete column according to claim 1, characterized in that: the concrete filled in the fiber reinforced composite material pipe (1) and the steel pipe (3) is any one of ordinary concrete, high-strength concrete, expanded concrete, fly ash concrete, lightweight aggregate concrete, recycled aggregate concrete, fiber concrete, self-compacting concrete, rubber concrete, ECC and UHPC.
6. The concrete filled steel tube bundle composite shear wall with built-in composite confined concrete column according to claim 1, characterized in that: the concrete filled in the interlayer between the steel pipe (3) and the fiber reinforced composite material pipe (1) can be the same as or different from the concrete filled in the fiber reinforced composite material pipe (1); the concrete filled in the fiber reinforced composite material pipes (1) and the steel pipes (3) at different positions can be the same or different.
7. The concrete filled steel tube bundle composite shear wall with built-in composite confined concrete column according to claim 1, characterized in that: the fiber reinforced composite material in the fiber reinforced composite material pipe (1) is any one of carbon fiber, glass fiber, aramid fiber and basalt fiber.
8. The concrete filled steel tube bundle composite shear wall with built-in composite confined concrete column according to claim 1, characterized in that: the cross-sectional shapes of the fiber reinforced composite material pipe (1) and the steel pipe (3) are any one of circular, oval and polygonal.
9. The steel tube concrete beam combined shear wall with the built-in composite material confined concrete column as claimed in any one of claims 1 to 8, wherein: in the combined shear wall body, the inner diameter of the steel pipe (3) positioned at the end part is larger than the inner diameters of the steel pipes (3) positioned at other positions, and the steel pipe (3) positioned at the end part at the moment is defined as an end post.
10. The steel tube concrete beam combined shear wall with the built-in composite material confined concrete column as claimed in claim 9, wherein: the number of the fiber reinforced composite material pipes (1) arranged in the end post is 1 or more, and the inner diameter of the fiber reinforced composite material pipes (1) arranged in the end post is larger than the inner diameters of the fiber reinforced composite material pipes (1) positioned at other positions.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882211A (en) * | 2017-12-15 | 2018-04-06 | 赵建敏 | Constraint compound wall structure for building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882211A (en) * | 2017-12-15 | 2018-04-06 | 赵建敏 | Constraint compound wall structure for building |
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