CN107268807A - A kind of Prefabricated concrete-filled steel tube superposed column - Google Patents
A kind of Prefabricated concrete-filled steel tube superposed column Download PDFInfo
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- CN107268807A CN107268807A CN201710525516.1A CN201710525516A CN107268807A CN 107268807 A CN107268807 A CN 107268807A CN 201710525516 A CN201710525516 A CN 201710525516A CN 107268807 A CN107268807 A CN 107268807A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
Abstract
The present invention relates to a kind of Prefabricated concrete-filled steel tube superposed column, it includes basic and multiple steel pipe concrete segments, the steel pipe concrete segment includes a coxopodite section, one epimerite section and one or more interstitial segments, each steel pipe concrete segment includes the lower steel plate being fixedly connected sequentially, concrete filled steel tube main body, upper steel plate, coxopodite section is fixedly connected between interstitial segment and by means of connecting crab-bolt between interstitial segment and epimerite section, the upper surface on basis is provided with bottom crab-bolt, coxopodite section be fixed on by means of the connection of its lower steel plate and bottom crab-bolt it is described on the basis of.The characteristics of Prefabricated concrete-filled steel tube superposed column has good high capacity, anti-seismic performance, superior durability; can be prefabricated in advance; made in factory or strange land; the complicated shortcoming of traditional cast-in-place concrete construction program is avoided, fast with speed of application, effect on environment is small; construction period is short; construction noise is low, and material stacking place is few, the advantages of being conducive to environmental protection.
Description
Technical field
The present invention relates to technical field of civil engineering, and in particular to a kind of Prefabricated concrete-filled steel tube superposed column.
Background technology
Modern civil engineering just develops towards the maximizing of yardstick, complicatedization, functional diversities direction, promotes height
The development of reinforced concrete, existing use high-strength concrete filled steel tubular structure, by steel tube confinement high-strength concrete, is improved high-strength mixed
The fragility characteristic of soil is coagulated, the shock resistance of structure is improved.In order to overcome the shortcoming of steel pipe corrosion resistance and fire resistance difference,
High strength concrete filled steel tube periphery pours ordinary reinforced concrete, forms a kind of high strength concrete filled steel tube of peripheral armored concrete and folds
Structure is closed, but this structure is it cannot be guaranteed that high strength concrete filled steel tube and the common stress of peripheral concrete and compatibility of deformation, are used
It is restricted.
Concrete is waited to reach that certain design is strong in addition, cast on-site concrete construction needs to take a substantial amount of time
Degree, could carry out next step process, and complicated site operation program, all traffic flow, workspace safety and environment can be caused
Negative effect, particularly, in bridge construction, when preparing bridge pier, is protected by construction environment, construction space, weather conditions and environment
The restriction of the factors such as shield, it is impossible to complete on schedule in time, influences project progress.
The content of the invention
(1) technical problem to be solved
In order to solve the above mentioned problem of prior art, the present invention provides a kind of Prefabricated concrete-filled steel tube superposed column, and its is effective
Solving high strength concrete filled steel tube and peripheral concrete can not stress and the problem of compatibility of deformation, and cast-in-place concrete construction jointly
The problems such as time length, pollution environment and big construction noise.The superposed column has that high capacity, anti-seismic performance be good, superior durability
The features such as, and can be prefabricated in advance, in use, direct splicing is installed, convenient construction is effectively speeded up the work, and is conducive to protection
Environment.
(2) technical scheme
In order to achieve the above object, the main technical schemes that the present invention is used include：
A kind of Prefabricated concrete-filled steel tube superposed column, it includes basic and multiple steel pipe concrete segments, the multiple steel pipe
Concrete segment includes a coxopodite section, an epimerite section and one or more interstitial segments, each concrete filled steel tube section
Duan Jun includes lower steel plate, concrete filled steel tube main body, the upper steel plate being fixedly connected sequentially, and the concrete filled steel tube main body includes one
Center steel pipe and it is wrapped in its peripheral armored concrete, the steel pipe and is marked with concrete, between coxopodite section and interstitial segment
And interstitial segment and epimerite section between the upper steel plate and lower steel plate be correspondingly provided with respectively connection crab-bolt or connecting hole so as to
Adjacent upper lower steel plate is set to be fixedly connected by means of connecting crab-bolt, each upper steel plate is in the correspondence steel pipe top opening
Position is provided with pouring hole, and the basic upper surface is provided with bottom crab-bolt, and the coxopodite section is by its lower steel plate and the company of bottom crab-bolt
Connect and be fixed on it is described on the basis of.
As a kind of preferred scheme of superposed column as described above, the surfaces externally and internally of the steel pipe is fixed with to the steel pipe
Internal or external protrusion shear connector.
As a kind of preferred scheme of superposed column as described above, the shear connector is peg, the nail tip of the peg
It is welded on the steel pipe and inside and outside is staggered.
As a kind of preferred scheme of superposed column as described above, the shear connector is steel plate with holes, the steel with holes
Plate is the strip-form steel plate provided with multiple equally spaced vias, and the steel plate with holes is inside and outside staggeredly, parallel be fixed on the steel pipe.
Further, it is possible to reinforcing bar be arranged in through hole, to play more preferable connection function.
As a kind of preferred scheme of superposed column as described above, the size of the upper steel plate of the coxopodite section is equal to institute
The cross-sectional area of concrete filled steel tube main body is stated, the area of its lower steel plate is more than the cross section face of the concrete filled steel tube main body
Product, and the correspondence bottom crab-bolt sets connecting hole on the lower steel plate outside the concrete filled steel tube main body projected area.
It is used as a kind of preferred scheme of superposed column as described above, the size of upper and lower steel plate of the interstitial segment etc.
With the cross-sectional area of the concrete filled steel tube main body, connecting hole wherein is set on interstitial segment and the lower steel plate of epimerite section,
It is corresponding with the connection crab-bolt position set on the upper steel plate of adjacent coxopodite section or interstitial segment, and in the steel tube concrete
The position of correspondence connecting hole is provided with reserved cavity in native main body, in use, after steel pipe concrete segment is fixed using connection crab-bolt,
In the reserved cavity casting concrete.
As a kind of preferred scheme of superposed column as described above, in addition to upper beam, top is provided with the middle of the upper beam
Through hole is provided with after-pouring concrete cavity, the cavity, correspondingly, the through hole and the connecting hole on the upper steel plate of epimerite section
It is correspondingly arranged, provided with top crab-bolt, the area of the upper steel plate of the steel pipe concrete segment of the adjacent upper beam in the connecting hole
More than the cross-sectional area of the concrete filled steel tube main body.
As a kind of preferred scheme of superposed column as described above, the ordinary reinforced concrete is in the middle of normal concrete
Multiple longitudinal reinforcements and multiple stirrups are provided with, wherein, multiple longitudinal reinforcements are arranged along the peripheral one-week interval of the steel pipe,
The longitudinal reinforcement upper and lower end is individually fixed in the upper steel plate and lower steel plate, and multiple stirrups are all around being fixed on
The outside of the longitudinal reinforcement, along the longitudinal reinforcement in longitudinally spaced arrangement.
As a kind of preferred scheme of superposed column as described above, the bottom crab-bolt is straight grappling iron bolt, the connection crab-bolt bag
Include nut bolt, bolt cap backing plate, nut backing plate and clamp nut.
As a kind of preferred scheme of superposed column as described above, the cross section of the steel pipe concrete segment is circular or side
Shape or other shapes.
(3) beneficial effect
The beneficial effects of the invention are as follows：The Prefabricated concrete-filled steel tube superposed column of the present invention utilizes the high-strength coagulation of steel tube confinement
Soil, using shear connector joint steel pipe, high-strength concrete and peripheral concrete, by steel pipe and high-strength concrete, common periphery
Concrete connects to form entirety, common stress, compatibility of deformation, and the superposed column has that sectional dimension is small, bearing capacity big, durability
Well, the advantages of anti-seismic performance is superior.
The Prefabricated concrete-filled steel tube superposed column of the present invention is applicable to bridge and skyscraper, can be prefabricated in advance, in factory
Or strange land makes, each section of prefabricated foundation, concrete filled steel tube, upper beam respectively first transport it into construction site, by constructing
Unit is done to scene after certain processing, is assembled as needed, forms precast concrete fabricated construction.This use can be pre-
The superposed column of system splicing prepares the shortcoming that fabricated construction avoids traditional cast-in-place concrete structure, fast with speed of application, right
Ambient influnence is small, and the construction period is short, and construction noise is low, and material stacking place is few, the advantages of being conducive to environmental protection.
Brief description of the drawings
Fig. 1 is the overall structure diagram of a preferred Prefabricated concrete-filled steel tube superposed column of the invention；
Fig. 2 is the vertical section structure schematic diagram of the preferred coxopodite section of the present invention one；
Fig. 3 is the cross-sectional structure schematic diagram of the preferred coxopodite section of the present invention one
Fig. 4 is the structural representation of a preferred shear connector of the invention；
Fig. 5 is the structural representation of a preferred bottom crab-bolt of the invention；
Fig. 6 is the longitudinal section of the steel pipe concrete segment of interstitial segment；
Fig. 7 is the cross-sectional view of the steel pipe concrete segment of interstitial segment；
Fig. 8 is the structural representation of a preferred connection crab-bolt；
Fig. 9 is the longitudinal section of the steel pipe concrete segment of epimerite section；
Figure 10 is the structural representation of another preferred shear connector of the present invention；
Figure 11 is the cross-sectional structure schematic diagram of another preferred coxopodite section of the present invention.
【Description of reference numerals】
1：Coxopodite section；
2：Interstitial segment；
3：Upper section；
4：Basis；
5：Upper beam；
6：Bottom crab-bolt；
7：Push up crab-bolt；
8：Connect crab-bolt；
9：Bottom section lower steel plate；
10：Bottom section upper steel plate；
11：Interlude lower steel plate；
12：Interlude upper steel plate；
13：Pouring hole；
14：Push up section upper steel plate；
15：Shear connector；
16：Reserved cavity；
17：Middle part after-pouring concrete；
19：Steel pipe；
20：Longitudinal reinforcement；
21：Stirrup；
22；High-strength concrete；
23：Normal concrete；
24：Through hole；
25：Nut bolt；
26：Bolt cap backing plate；
27：Nut backing plate；
28：Clamp nut；
29：Strip-form steel plate.
Embodiment
In order to preferably explain the present invention, in order to understand, below in conjunction with the accompanying drawings, by embodiment, to this hair
It is bright to be described in detail.
Embodiment 1
As shown in figure 1, a kind of Prefabricated concrete-filled steel tube superposed column, it includes basic and multiple steel pipe concrete segments, many
Individual steel pipe concrete segment includes the concrete filled steel tube section of a coxopodite section, an epimerite section and one or more interstitial segments
Section, each steel pipe concrete segment includes lower steel plate, concrete filled steel tube main body, the upper steel being fixedly connected sequentially from the bottom to top
Plate, wherein, concrete filled steel tube main body is that periphery is enclosed with armored concrete, and center is to be noted in the structure of a steel pipe, the steel pipe
There is concrete, the upper steel plate and lower steel plate between coxopodite section and interstitial segment and between interstitial segment and epimerite section are distinguished
Accordingly provided with connection crab-bolt or connecting hole so that adjacent upper lower steel plate is fixedly connected by means of connecting crab-bolt, upper steel plate exists
The position of correspondence steel pipe top opening is provided with pouring hole, when pouring hole is used to prepare each steel pipe concrete segment, concrete perfusion；
The upper surface on basis is provided with bottom crab-bolt；During using carrying out assembled, on the basis of coxopodite section is fixed on by connecting hole, bottom crab-bolt, it
Coxopodite section is fixed together with being superimposed between interstitial segment using connection crab-bolt afterwards.
Specifically, as shown in figure 1, as coxopodite section 1 steel pipe concrete segment be placed in basis 4 top, coxopodite section 1 with
Basis 4 is fixed by bottom crab-bolt 6；As the steel pipe concrete segment of interstitial segment 2 be placed in coxopodite section 1 upper end, coxopodite section 1 with
It is fixedly connected between interstitial segment 2 and each interlude by connecting crab-bolt 8.
Wherein, as shown in Fig. 2 coxopodite 1 lower end of section is provided with bottom section lower steel plate 9, upper end is provided with bottom section upper steel plate 10, bottom section
The area of steel plate 9 is more than the cross-sectional area of the concrete filled steel tube main body of coxopodite section 1, on the outer edge of bottom section lower steel plate 9, i.e.,
Lower steel plate outside concrete filled steel tube main body projected area is provided with the connecting hole for the basis 4 that is connected, in bottom Duan Shanggang
Plate 10 is provided with the through hole for being used for being fixedly connected with other interstitial segments 2, through hole close to the part at edge and is provided with connection crab-bolt
8, the bottom of at, the center of section upper steel plate 10 is provided with the pouring hole for being used for pouring the inner concrete of steel pipe 19.Preferably poured in steel pipe 19
High-strength concrete 22, high-strength concrete refers to concrete of the strength grade for C60 and its above, its high capacity, with preferable
Anti-seismic performance.Ordinary reinforced concrete is enclosed with the periphery of steel pipe 19, ordinary reinforced concrete is in normal concrete 23
Between be provided with multiple longitudinal reinforcements and multiple stirrups, as shown in figure 3, multiple longitudinal reinforcements 20 are along the peripheral one-week interval of steel pipe
Arrangement, the upper and lower end of longitudinal reinforcement 20 is individually fixed in bottom section upper steel plate 10 and bottom section lower steel plate 9, and multiple stirrups 21 are surround
The outside of all longitudinal reinforcements 20 is fixed on, along longitudinal reinforcement 20 in longitudinally spaced arrangement, spacing distance can be set to equidistantly sow discord
Every, it can be set as needed as the shape of cross section of the steel pipe concrete segment of coxopodite section 1, as shown in Figure 3, cross section shape
Shape can be set to circular, and the cross section of the steel pipe concrete segment of corresponding other sections is also correspondingly arranged.
In order that concrete inside and outside steel pipe 19 can stress, compatible deformation jointly, it is fixed in the inner and outer surfaces of steel pipe 19
There is shear connector 15, the shear connector 15 arranged crosswise inside and outside steel pipe 19, shear connector 15 can use peg, such as scheme
Shown in 4, the nail tip of peg is welded on steel pipe.Bottom anchor is embedded with the outside of the concrete filled steel tube main body of the correspondence coxopodite section of basis 41
Bolt 6, correspondence bottom section lower steel plate 9 is provided with through hole 24 as connecting hole, and when connection coxopodite section 1 is with basic 4, bottom crab-bolt 6 is passed through should
Connecting hole is fixed by nut.Bottom crab-bolt 6 can use straight grappling iron bolt, as shown in Figure 5.
As shown in Figure 6 and Figure 7, the steel pipe concrete segment of interstitial segment 2 is essentially consisted in different from coxopodite section：Upper and lower two
The steel plate at end is respectively interlude upper steel plate 12, interlude lower steel plate 11, interlude upper steel plate 12 and interlude lower steel plate 11
The cross-sectional area of the equivalent concrete filled steel tube main body of size, the centre of interlude upper steel plate 12 is provided with pouring hole 13, close
The position at edge is provided with connecting hole, connecting hole correspondence institute provided with connection crab-bolt 8, interlude lower steel plate 11 close to outer edge position
Connection crab-bolt is stated to set, and correspondence position is provided with reserved cavity 16 in concrete filled steel tube main body, in use, concrete filled steel tube section
It is middle part after-pouring concrete 17 in reserved cavity after Duan Caiyong connections crab-bolt is fixed.
Connect the adoptable structure of crab-bolt as shown in figure 8, including nut bolt 25, bolt cap backing plate 26, nut backing plate 27, tightly
Gu nut 28, bolt cap backing plate 26 is first placed on nut bolt 25, in the connecting hole that insertion interlude upper steel plate 12 is set, finally
Normal concrete is reinjected, in use, the steel pipe concrete segment of another interstitial segment 2 is placed in into top, correspondence connecting hole is put
Put, nut bolt 25 is inserted in the connecting hole of the interlude lower steel plate 11 of the steel pipe concrete segment of another interstitial segment 2, by spiral shell
Female backing plate 27 is inserted on nut bolt 25, is fastened afterwards using clamp nut 28, connecting hole is along outside steel pipe concrete segment
Monday circle is symmetrical arranged, after all connecting holes are fixed using connection crab-bolt, then the casting concrete in reserved cavity, into
It is middle part after-pouring concrete 17 after type.
The steel pipe concrete segment of one or more interstitial segments 2 is fixed after splicing with coxopodite section 1 and basis 4, Ke Yizhi
Connect preparation and pour superstructure, such as bridge floor, or the prefabricated upper beam of use, such as bent cap, when being connected with upper beam, original work are
The steel pipe concrete segment of interstitial segment 2 is not splice with upper beam directly typically, in order to strengthen the steadiness of superposed column, also
Provided with the steel pipe concrete segment as epimerite section 3, the difference of itself and interstitial segment 2 is upper steel plate, as shown in figure 9,
The upper steel plate of the steel pipe concrete segment of epimerite section 3 is top section upper steel plate 14, and the area of top section upper steel plate 14 is more than steel tube concrete
The cross-sectional area of native main body, connecting hole is set close to steel pipe, positioned at the inner side for surrounding circle of longitudinal reinforcement, is set in the connecting hole
There is top crab-bolt 7, correspondence connecting hole is provided with through hole on upper beam 5, and top crab-bolt 7 passes through the through hole, in the top of through hole provided with top
Portion's after-pouring concrete cavity, is waited after upper beam is installed, after being fixed by clamp nut, can be by concreting in behind top
Top after-pouring concrete 18 is formed in casting concrete cavity, the splicing of whole Prefabricated concrete-filled steel tube superposed column is completed, can
Directly proceed with the construction of other structures part.
The preparation method of above-mentioned Prefabricated concrete-filled steel tube superposed column, as shown in fig. 1, can adopt and first prepare with the following method respectively
Part：
(1) the coxopodite section 1 as steel pipe concrete segment is made：Steel pipe is made by design requirement, in the inside and outside weldering of steel pipe 19
Shear connector 15 is connect, and makes template and steel reinforcement cage of the side with preformed hole, by longitudinal reinforcement 20 and steel-pipe welding the bottom of at
On section lower steel plate 9 and bottom section upper steel plate 10, stirrup 21 is fixed in the middle of fixed on the periphery of longitudinal reinforcement 20, bottom section upper steel plate 10
Crab-bolt 8 is connected, template erection pours high-strength concrete into steel pipe in the periphery of longitudinal reinforcement 20 from upper steel plate pouring hole 13
22, then normal concrete 23 is poured into template from Side shuttering preformed hole, the steel pipe high strength for forming peripheral armored concrete is mixed
The coxopodite section 1 of solidifying soil superposed member；
(2) interstitial segment 2 as steel pipe concrete segment is made：Steel pipe is made by design requirement, in the inside and outside weldering of steel pipe
Shear connector 15 is connect, and makes template and steel reinforcement cage of the side with preformed hole, longitudinal reinforcement 20 and steel pipe 19 are welded on
On interlude lower steel plate 11 and interlude upper steel plate 12, stirrup 21 is fixed on the periphery of longitudinal reinforcement 20, in interlude upper steel plate
Fixed middle connection crab-bolt 8, high-strength concrete 22 is poured into steel pipe from the pouring hole of interlude upper steel plate 12 on 12, then from sideways
Template preformed hole pours normal concrete 23 into template, forms the high strength concrete filled steel tube superposed member of peripheral armored concrete
Interstitial segment 2；
(3) the epimerite section 3 as steel pipe concrete segment is made：Steel pipe is made by design requirement, in the inside and outside welding of steel pipe
Connector 15, and make side with preformed hole template and steel reinforcement cage, by longitudinal steel 20 and steel pipe 19 be welded on lower steel plate and
On epimerite section upper steel plate 14, stirrup 21 is fixed on the periphery of longitudinal reinforcement 20, the fixed top crab-bolt 7 on epimerite section upper steel plate 14,
High-strength concrete 22 is poured into steel pipe from the pouring hole of upper steel plate 15, then is poured from Side shuttering preformed hole into template commonly
Concrete 23, forms the epimerite section 3 of the high strength concrete filled steel tube superposed member of peripheral armored concrete；
(4) making on basis 4, pre- buried end anchor bolt 6；
(5) upper beam 5 is made, centre is provided with top after-pouring concrete cavity 18, and is provided with top crab-bolt relevant position
Reserved through hole, top crab-bolt structure can be identical with the structure of middle crab-bolt, basis 4 with upper beam 5 pour preparation method with
It is of the prior art identical, it will not be repeated here.
The joining method of Prefabricated concrete-filled steel tube superposed column as described above, with reference to shown in Fig. 1, is comprised the following steps that：
(1) by the coxopodite section 1 of steel pipe concrete segment by the pre- immobilizing foundation 4 of buried end anchor bolt 6；
(2) interstitial segment 2 of steel pipe concrete segment is put into coxopodite section 1, the company on the bottom section upper steel plate 10 of coxopodite section 1
The connecting hole that crab-bolt 8 penetrates the interlude lower steel plate 11 of interstitial segment 2 is connect, and is fixed with nut；
(3) interstitial segment 2 of steel pipe concrete segment is put on another interstitial segment 2 of steel pipe concrete segment, steel pipe
Connection crab-bolt 8 on the interstitial segment upper steel plate 12 of concrete segment penetrates the interlude lower steel plate 11 of steel pipe concrete segment
Connecting hole, and fixed with nut；
(4) the epimerite section 3 of steel pipe concrete segment is put on the interstitial segment 2 of steel pipe concrete segment, steel tube concrete
Connection crab-bolt 8 on the interstitial segment upper steel plate 12 of native section penetrates the connection of the epimerite section lower steel plate of steel pipe concrete segment
Hole, and fixed with nut；
(5) by upper beam 5 by push up crab-bolt 7 be fixed on the epimerite of steel pipe concrete segment section 3 on, epimerite section 3 it is pre-buried
The top crab-bolt for pushing up crab-bolt 7 passes through the reserved through hole of upper beam 5, is fixed with nut；
(6) in the reserved cavity of each section junction casting concrete formation in the middle part of after-pouring concrete 17；
(7) the after-pouring concrete 18 at the top of the formation of upper beam casting concrete, whole superposed column splicing is completed.
The present invention utilizes steel tube confinement high-strength concrete, improves the big shortcoming of Brittleness of High Strength Concrete, improves its ductility
And energy dissipation capacity, peripheral concrete improves the shortcoming of steel pipe resistance to corrosion difference and fire resistance difference, and shear connector is by steel
Pipe and high-strength concrete, common peripheral concrete connect to form entirety, common stress, compatibility of deformation.Particularly, in bridge construction
In, restricted down by factors such as construction environment, construction space, weather conditions and environmental protection, using precast concrete assembled
Structure has bigger development space.
Embodiment 2
The present embodiment is that on the basis of embodiment 1, shear connector is designed as into steel plate with holes, and steel plate with holes is band
Shape steel plate 29, as shown in Figure 10, strip-form steel plate 29 is provided with the equidistant through hole 24 in interval.Being provided with for through hole 24 is beneficial to enhancing
Connection between shear connector and concrete, improves cooperation, the ability of compatibility of deformation.As shown in figure 11, Shear connection
Part 15 be set to strip-form steel plate 29 can vertical welding inside and outside steel pipe 19, be to be parallel to each other between different strip-form steel plates 29
Set, and in the medial and lateral arranged for interval of steel pipe 19.Further, it is possible to arrange reinforcing bar in hole, make to play preferably connection
With, specifically, running through in the through hole of the steel plate with holes of the same level position of one week along along steel pipe or outside steel pipe has reinforcing bar,
Form reinforcing bar to enclose around steel pipe inner wall or outer wall one, reinforcing bar is solderable in through-holes, so, further strengthen steel pipe and concrete
Connection.
As needed, the cross section of steel pipe concrete segment can be set to other shapes, as shown in figure 11, the horizontal stroke of coxopodite section 1
Section can be set to rectangle, and now the cross section of other steel pipe concrete segments such as is similarly set as at the big rectangle.According to
Need, the cross section of steel pipe concrete segment can also be set to other shapes.
The above described is only a preferred embodiment of the present invention, being not the limitation that other forms are done to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, the technical spirit according to the present invention is to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. a kind of Prefabricated concrete-filled steel tube superposed column, it is characterised in that it includes basic and multiple steel pipe concrete segments, described
Multiple steel pipe concrete segments include a coxopodite section, an epimerite section and one or more interstitial segments, each steel pipe
Concrete segment includes lower steel plate, concrete filled steel tube main body, the upper steel plate being fixedly connected sequentially, the concrete filled steel tube main body
Including a center steel pipe and be wrapped in its peripheral armored concrete, the steel pipe and be marked with concrete, coxopodite section with it is middle
Between section and interstitial segment and epimerite section between the upper steel plate and lower steel plate respectively correspondingly provided with connection crab-bolt or
Connecting hole is so that adjacent upper lower steel plate is fixedly connected by means of connecting crab-bolt, and each upper steel plate is in the correspondence steel pipe
Open-topped position is provided with pouring hole, and the basic upper surface is provided with bottom crab-bolt, and the coxopodite section is by means of its lower steel plate
Connection with bottom crab-bolt and be fixed on it is described on the basis of.
2. superposed column as claimed in claim 1, it is characterised in that the surfaces externally and internally of the steel pipe is fixed with to the steel pipe
Internal or external protrusion shear connector.
3. superposed column as claimed in claim 2, it is characterised in that the shear connector is peg, the nail tip of the peg
It is welded on the steel pipe and inside and outside is staggered.
4. superposed column as claimed in claim 2, it is characterised in that the shear connector is steel plate with holes, the steel with holes
Plate is the strip-form steel plate provided with multiple equally spaced vias, and the steel plate with holes is inside and outside staggeredly, parallel be fixed on the steel pipe.
5. superposed column as claimed in claim 1, it is characterised in that the size of the upper steel plate of the coxopodite section is equal to institute
The cross-sectional area of concrete filled steel tube main body is stated, the area of its lower steel plate is more than the cross section face of the concrete filled steel tube main body
Product, and the correspondence bottom crab-bolt sets connecting hole on the lower steel plate outside the concrete filled steel tube main body projected area.
6. superposed column as claimed in claim 1, it is characterised in that size of upper and lower steel plate of the interstitial segment etc.
With the cross-sectional area of the concrete filled steel tube main body, connection wherein is set on interstitial segment and the lower steel plate of epimerite section
Hole, it is corresponding with the connection crab-bolt position set on the upper steel plate of adjacent coxopodite section or interstitial segment, and in the steel pipe
The position of correspondence connecting hole is provided with reserved cavity on concrete main body, in use, steel pipe concrete segment is consolidated using connection crab-bolt
After fixed, in the reserved cavity casting concrete.
7. it is provided with top in the middle of superposed column as claimed in claim 1, it is characterised in that also including upper beam, the upper beam
Through hole is provided with after-pouring concrete cavity, the cavity, correspondingly, the through hole and the connecting hole on the upper steel plate of epimerite section
It is correspondingly arranged, provided with top crab-bolt, the area of the upper steel plate of the steel pipe concrete segment of the adjacent upper beam in the connecting hole
More than the cross-sectional area of the concrete filled steel tube main body.
8. superposed column as claimed in claim 1, it is characterised in that the ordinary reinforced concrete is in the middle of normal concrete
Multiple longitudinal reinforcements and multiple stirrups are provided with, wherein, multiple longitudinal reinforcements are arranged along the peripheral one-week interval of the steel pipe,
The longitudinal reinforcement upper and lower end is individually fixed in the upper steel plate and lower steel plate, and multiple stirrups are all around being fixed on
The outside of the longitudinal reinforcement, along the longitudinal reinforcement in longitudinally spaced arrangement.
9. superposed column as claimed in claim 1, it is characterised in that the bottom crab-bolt is straight grappling iron bolt, the connection crab-bolt bag
Include nut bolt, bolt cap backing plate, nut backing plate and clamp nut.
10. superposed column as claimed in claim 1, it is characterised in that the cross section of the steel pipe concrete segment to be circular or
Square or other shapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710525516.1A CN107268807B (en) | 2017-06-30 | 2017-06-30 | A kind of Prefabricated concrete-filled steel tube superposed column |
Applications Claiming Priority (1)
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| CN109025063A (en) * | 2018-08-01 | 2018-12-18 | 广州五羊建设机械有限公司 | The production method of sectional type steel tube regeneration mixing component and its positioner used |
| CN109252622A (en) * | 2018-09-26 | 2019-01-22 | 重庆普珞沃建筑科技有限公司 | Composite beam prefabricated panel sub-assembly and composite beam |
| CN109610728A (en) * | 2018-11-19 | 2019-04-12 | 万正河 | A kind of prefabricated load-bearing pillar of high intensity steel reinforced concrete |
| CN110094015A (en) * | 2018-01-29 | 2019-08-06 | 中铁城际规划建设有限公司 | A kind of complex beam-column structure of construction |
| CN110952440A (en) * | 2019-11-19 | 2020-04-03 | 东北大学 | Prefabricated section steel concrete and reinforced concrete spliced pier and construction process |
| CN113006272A (en) * | 2021-02-01 | 2021-06-22 | 中建科技集团有限公司 | Assembly type prestressed concrete frame system and construction method |
| CN113585049A (en) * | 2021-09-08 | 2021-11-02 | 辽宁省交通规划设计院有限责任公司 | Self-resetting prefabricated assembled concrete filled steel tube pier node connection structure with replaceable plastic hinges and manufacturing method thereof |
| CN114150690A (en) * | 2021-11-30 | 2022-03-08 | 西安市政设计研究院有限公司 | Embedded flange for steel column-concrete foundation, connecting structure and construction method |
| CN114856087A (en) * | 2022-06-23 | 2022-08-05 | 福建农林大学 | Full-prefabricated assembled concrete-filled steel tube composite column connecting node and construction method |
| CN115126157A (en) * | 2022-08-03 | 2022-09-30 | 华临绿建科技股份有限公司 | Construction method of novel fully-prefabricated constructional column |
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| CN107605052A (en) * | 2017-11-16 | 2018-01-19 | 华北理工大学 | Prefabricated assembled concrete-filled steel square tubular column member connecting structure and its construction method |
| CN110094015A (en) * | 2018-01-29 | 2019-08-06 | 中铁城际规划建设有限公司 | A kind of complex beam-column structure of construction |
| CN109025063A (en) * | 2018-08-01 | 2018-12-18 | 广州五羊建设机械有限公司 | The production method of sectional type steel tube regeneration mixing component and its positioner used |
| CN109025063B (en) * | 2018-08-01 | 2021-05-14 | 广州五羊建设机械有限公司 | Manufacturing method of sectional type steel pipe regeneration mixed component and positioner used by same |
| CN109252622A (en) * | 2018-09-26 | 2019-01-22 | 重庆普珞沃建筑科技有限公司 | Composite beam prefabricated panel sub-assembly and composite beam |
| CN109610728A (en) * | 2018-11-19 | 2019-04-12 | 万正河 | A kind of prefabricated load-bearing pillar of high intensity steel reinforced concrete |
| CN110952440A (en) * | 2019-11-19 | 2020-04-03 | 东北大学 | Prefabricated section steel concrete and reinforced concrete spliced pier and construction process |
| CN110952440B (en) * | 2019-11-19 | 2021-06-15 | 东北大学 | Prefabricated section steel concrete and reinforced concrete spliced pier and construction process |
| CN113006272A (en) * | 2021-02-01 | 2021-06-22 | 中建科技集团有限公司 | Assembly type prestressed concrete frame system and construction method |
| CN113585049B (en) * | 2021-09-08 | 2022-11-08 | 辽宁省交通规划设计院有限责任公司 | Self-resetting prefabricated assembled concrete filled steel tube pier node connecting structure with replaceable plastic hinges and construction method thereof |
| CN113585049A (en) * | 2021-09-08 | 2021-11-02 | 辽宁省交通规划设计院有限责任公司 | Self-resetting prefabricated assembled concrete filled steel tube pier node connection structure with replaceable plastic hinges and manufacturing method thereof |
| CN114150690A (en) * | 2021-11-30 | 2022-03-08 | 西安市政设计研究院有限公司 | Embedded flange for steel column-concrete foundation, connecting structure and construction method |
| CN114856087A (en) * | 2022-06-23 | 2022-08-05 | 福建农林大学 | Full-prefabricated assembled concrete-filled steel tube composite column connecting node and construction method |
| CN115126157A (en) * | 2022-08-03 | 2022-09-30 | 华临绿建科技股份有限公司 | Construction method of novel fully-prefabricated constructional column |
| CN116591395A (en) * | 2023-07-17 | 2023-08-15 | 福建农林大学 | Insertion-assembly type steel tube concrete composite column with gradual-change steel tube and construction method |
| CN116591395B (en) * | 2023-07-17 | 2023-09-29 | 福建农林大学 | Insertion-assembly type steel tube concrete composite column with gradual-change steel tube and construction method |
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