CN107268807B - A kind of Prefabricated concrete-filled steel tube superposed column - Google Patents

A kind of Prefabricated concrete-filled steel tube superposed column Download PDF

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Publication number
CN107268807B
CN107268807B CN201710525516.1A CN201710525516A CN107268807B CN 107268807 B CN107268807 B CN 107268807B CN 201710525516 A CN201710525516 A CN 201710525516A CN 107268807 B CN107268807 B CN 107268807B
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China
Prior art keywords
concrete
steel plate
steel
steel pipe
anchor bolt
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CN107268807A (en
Inventor
王连广
陈百玲
张海伏
崔世龙
冯立柱
邱昱
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Northeastern University China
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Northeastern University China
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/30Structures 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/185Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/30Columns; Pillars; Struts
    • E04C3/34Columns; 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 columns, it includes basis 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, it is fixedly connected between coxopodite section and interstitial segment and by means of connecting anchor bolt between interstitial segment and epimerite section, the upper surface on basis is equipped with bottom anchor bolt, the coxopodite section be fixed on by means of the connection of its lower steel plate and bottom anchor bolt it is described on the basis of.The Prefabricated concrete-filled steel tube superposed column has the characteristics that bearing capacity is high, anti-seismic performance is good, superior durability; it can be prefabricated in advance; it is made in factory or strange land; the disadvantage of traditional cast-in-place concrete construction program complexity is avoided, has speed of application fast, effect on environment is small; construction period is short; the advantages that construction noise is low, and material stacking place is few, is conducive to environmental protection.

Description

A kind of Prefabricated concrete-filled steel tube superposed column
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 technique
Modern civil engineering just towards the enlargement of scale, structure is complicated change, functional diversities direction develop, promote height The development of reinforced concrete, it is existing to use high-strength concrete filled steel tubular structure, by steel tube confinement high-strength concrete, improve high-strength mixed The brittleness characteristic for coagulating soil, improves the shock resistance of structure.In order to overcome the disadvantage of steel pipe corrosion resistance and fire resistance difference, High strength concrete filled steel tube periphery pours ordinary reinforced concrete, and the high strength concrete filled steel tube for forming a kind of peripheral armored concrete is folded Structure is closed, but this structure cannot be guaranteed high strength concrete filled steel tube and the common stress of peripheral concrete and compatibility of deformation, use It is restricted.
Concrete is waited to reach certain design by force in addition, cast on-site concrete construction needs take a substantial amount of time Degree just can be carried out the next step, and complicated site operation program, can all cause to traffic flow, workspace safety and environment Negative effect, in particular, when preparing bridge pier, being protected by construction environment, construction space, weather conditions and environment in bridge construction The restriction of the factors such as shield, cannot complete on schedule in time, influence project progress.
Summary of the invention
(1) technical problems to be solved
In order to solve the above problem of the prior art, the present invention provides a kind of Prefabricated concrete-filled steel tube superposed column, effectively Solve the problems, such as that high strength concrete filled steel tube and peripheral concrete cannot common stress and compatibility of deformation and cast-in-place concrete constructions The problems such as time is long, pollution environment and construction noise is big.The superposed column is high with bearing capacity, anti-seismic performance is good, superior durability The features such as, and can be prefabricated in advance, in use, direct splicing is installed, facilitates construction, effectively speed up the work, be conducive to protect Environment.
(2) technical solution
In order to achieve the above object, the main technical schemes that the present invention uses include:
A kind of Prefabricated concrete-filled steel tube superposed column comprising 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 the lower steel plate being fixedly connected sequentially, concrete filled steel tube main body, upper steel plate, and the concrete filled steel tube main body includes one Center steel pipe and the armored concrete for being wrapped in its periphery, are marked with concrete in the steel pipe, between coxopodite section and interstitial segment And the upper steel plate between interstitial segment and epimerite section and lower steel plate respectively correspond be equipped with connection anchor bolt or connecting hole to It is fixedly connected with adjacent upper lower steel plate by means of connecting anchor bolt, each upper steel plate is in the correspondence steel pipe top opening Position is equipped with pouring hole, the upper surface on the basis equipped with bottom anchor bolt, the coxopodite section by its lower steel plate and bottom anchor bolt company Connect and be fixed on it is described on the basis of.
As a kind of preferred embodiment 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 shear connector outstanding.
As a kind of preferred embodiment 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 embodiment of superposed column as described above, the shear connector is perforated steel plate, the steel with holes Plate is the strip-form steel plate equipped with multiple equally spaced vias, and the perforated steel plate is inside and outside staggeredly, is fixed on the steel pipe in parallel. Further, it is possible to arrange reinforcing bar, in through-hole to play better connection function.
As a kind of preferred embodiment 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 lower steel plate is greater than the cross section face of the concrete filled steel tube main body Product, and the bottom anchor bolt setting connecting hole is corresponded on the lower steel plate except the concrete filled steel tube main body projected area.
As a kind of preferred embodiment of superposed column as described above, the size etc. of the upper and lower steel plate of the interstitial segment 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 anchor bolt position being arranged on the upper steel plate of adjacent coxopodite section or interstitial segment, and in the steel tube concrete The position that hole is correspondingly connected in native main body is equipped with reserved cavity, in use, after steel pipe concrete segment is fixed using connection anchor bolt, In the reserved cavity casting concrete.
Further include upper beam as a kind of preferred embodiment of superposed column as described above, top is equipped among the upper beam After-pouring concrete cavity, the cavity is interior to be equipped with through-hole, correspondingly, the connecting hole on the upper steel plate of the through-hole and the epimerite section It is correspondingly arranged, top anchor bolt, the area of the upper steel plate of the steel pipe concrete segment of the adjacent upper beam is equipped in the connecting hole Greater than the cross-sectional area of the concrete filled steel tube main body.
As a kind of preferred embodiment of superposed column as described above, the ordinary reinforced concrete is among normal concrete Be provided with multiple longitudinal reinforcements and multiple stirrups, wherein multiple longitudinal reinforcements along steel pipe periphery one-week interval arrange, 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 is arranged along the longitudinal reinforcement in longitudinal gap.
As a kind of preferred embodiment of superposed column as described above, the bottom anchor bolt is straight hook anchor bolt, the connection anchor bolt packet Include nut bolt, bolt cap backing plate, nut backing plate and fastening nut.
As a kind of preferred embodiment of superposed column as described above, the cross section of the steel pipe concrete segment is round or side Shape or other shapes.
(3) beneficial effect
The beneficial effects of the present invention are: Prefabricated concrete-filled steel tube superposed column of the 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 is small with sectional dimension, bearing capacity is big, durability Well, the advantages that anti-seismic performance is superior.
Prefabricated concrete-filled steel tube superposed column of the invention is applicable to bridge and skyscraper, can be prefabricated in advance, in factory Or strange land production, first each segment of prefabricated foundation, concrete filled steel tube, upper beam respectively, construction site is transported it into, by constructing It after unit does certain processing to scene, is assembled as needed, forms precast concrete fabricated construction.This use can be pre- The superposed column of system splicing prepares the shortcomings that fabricated construction avoids traditional cast-in-place concrete structure, has speed of application fast, right The advantages that environment influence is small, and the construction period is short, and construction noise is low, and material stacking place is few, is conducive to environmental protection.
Detailed description of the invention
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 a preferred coxopodite section of the invention;
Fig. 3 is the cross-sectional structure schematic diagram of a preferred coxopodite section of the invention
Fig. 4 is the structural schematic diagram of a preferred shear connector of the invention;
Fig. 5 is the structural schematic diagram of a preferred bottom anchor 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 schematic diagram of a preferred connection anchor bolt;
Fig. 9 is the longitudinal section of the steel pipe concrete segment of epimerite section;
Figure 10 is the structural schematic diagram 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 symbols]
1: coxopodite section;
2: interstitial segment;
3: upper segment;
4: basis;
5: upper beam;
6: bottom anchor bolt;
7: top anchor bolt;
8: connection anchor 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: top 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: fastening nut;
29: strip-form steel plate.
Specific embodiment
In order to preferably explain the present invention, in order to understand, with reference to the accompanying drawing, by specific 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 comprising basic and multiple steel pipe concrete segments are more A 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 the lower steel plate being fixedly connected sequentially from the bottom to top, concrete filled steel tube main body, upper steel Plate, wherein concrete filled steel tube main body is that periphery is enclosed with armored concrete, and center is the structure of a steel pipe, note in the steel pipe There is concrete, the upper steel plate and lower steel plate difference between coxopodite section and interstitial segment and between interstitial segment and epimerite section It is equipped with connection anchor bolt or connecting hole accordingly to make adjacent upper lower steel plate be fixedly connected by means of connecting anchor bolt, upper steel plate exists The position of corresponding steel pipe top opening is equipped with pouring hole, when pouring hole is used to prepare each steel pipe concrete segment, concrete perfusion; The upper surface on basis is equipped with bottom anchor bolt;When using carrying out assembled, on the basis of coxopodite section is fixed on by connecting hole, bottom anchor bolt, it Connection anchor bolt is all made of between coxopodite section and interstitial segment afterwards to be superimposed and be fixed together.
Specifically, as shown in Figure 1, the steel pipe concrete segment as coxopodite section 1 be placed in basis 4 top, coxopodite section 1 with Basis 4 is fixed by bottom anchor bolt 6;Steel pipe concrete segment as interstitial segment 2 is placed in the upper end of coxopodite section 1, coxopodite section 1 with It is fixedly connected between interstitial segment 2 and each interlude by connecting anchor bolt 8.
Wherein, as shown in Fig. 2, 1 lower end of coxopodite section be equipped with bottom section lower steel plate 9, upper end be equipped with bottom section upper steel plate 10, bottom section under The area of steel plate 9 is greater 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 except concrete filled steel tube main body projected area is equipped with the connecting hole for being connected and fixed basis 4, in bottom Duan Shanggang Plate 10 is equipped with the through-hole for being fixedly connected with other interstitial segments 2 close to the part at edge, is provided with connection anchor bolt in through-hole 8, the bottom of at, the center of section upper steel plate 10 is equipped with the pouring hole for pouring 19 inner concrete of steel pipe.It is preferably poured in steel pipe 19 High-strength concrete 22, high-strength concrete refer to strength grade be C60 and its more than concrete, bearing capacity is high, it is preferable to have Anti-seismic performance.It is enclosed with ordinary reinforced concrete in 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 steel pipe periphery one-week interval Arrangement, the upper and lower end of longitudinal reinforcement 20 are individually fixed in bottom section upper steel plate 10 and bottom section lower steel plate 9, and multiple stirrups 21 are surround It is fixed on the outside of all longitudinal reinforcements 20, reinforcing bar 20 is arranged in longitudinal gap along longitudinal direction, and spacing distance can be set as equidistantly sowing discord Every, the cross-sectional shape of the steel pipe concrete segment as coxopodite section 1 can be set as needed, as shown in Figure 3, cross section shape Shape can be set as round, and the cross section of the steel pipe concrete segment of corresponding other segments is also correspondingly arranged.
It is fixed in 19 inner and outer surfaces of steel pipe in order to enable the concrete inside and outside steel pipe 19 common stress, compatible deformation There is shear connector 15, peg can be used in the shear connector 15 arranged crosswise inside and outside steel pipe 19, shear connector 15, such as schemes Shown in 4, the nail tip of peg is welded on steel pipe.Bottom anchor is embedded on the outside of the concrete filled steel tube main body of the corresponding coxopodite section 1 in basis 4 Bolt 6, corresponding bottom section lower steel plate 9 is equipped with through-hole 24 and is used as connecting hole, and when connecting coxopodite section 1 and basis 4, bottom anchor bolt 6 passes through should Connecting hole is fixed by nut.Straight hook anchor bolt can be used in bottom anchor bolt 6, 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 Size is equal to the cross-sectional area of concrete filled steel tube main body, and the centre of interlude upper steel plate 12 is equipped with pouring hole 13, close The position at edge is equipped with connection anchor bolt 8, and interlude lower steel plate 11 is equipped with connecting hole close to outer edge position, which corresponds to institute Connection anchor bolt setting is stated, and corresponding position is equipped 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 connection anchor bolt is fixed.
The adoptable structure of anchor bolt is connected as shown in figure 8, including nut bolt 25, bolt cap backing plate 26, nut backing plate 27, tight Gu bolt cap backing plate 26 is first placed on nut bolt 25 by nut 28, in the connecting hole that insertion interlude upper steel plate 12 is arranged, finally Normal concrete is reinjected, in use, the steel pipe concrete segment of another interstitial segment 2 is placed in top, hole is correspondingly connected with and puts It sets, nut bolt 25 is inserted into 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, later using fastening nut 28 fasten, connecting hole be along steel pipe concrete segment outside Monday circle is symmetrical arranged, by all connecting holes be all made of connection anchor bolt it is fixed after, then the casting concrete in reserved cavity, at It is middle part after-pouring concrete 17 after type.
After the fixed splicing of the steel pipe concrete segment and coxopodite section 1 of one or more interstitial segments 2 and basis 4, Ke Yizhi It connects preparation and pours superstructure, such as bridge floor, or use prefabricated upper beam, such as bent cap, when being connected with upper beam, original work are The steel pipe concrete segment of interstitial segment 2 is that general not direct and upper beam splices, in order to reinforce the stability of superposed column, also Equipped with the steel pipe concrete segment as epimerite section 3, with interstitial segment 2 the difference is that 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 greater than steel tube concrete The cross-sectional area of native main body, connecting hole are arranged close to steel pipe, positioned at the inside for surrounding circle of longitudinal reinforcement, set in the connecting hole There is top anchor bolt 7, hole is correspondingly connected on upper beam 5 equipped with through-hole, top anchor bolt 7 passes through the through-hole, is equipped with top in the top of through-hole Portion's after-pouring concrete cavity, is waited after installing upper beam, can be by concreting behind top after being fixed by fastening nut Top after-pouring concrete 18 is formed in casting concrete cavity, the splicing of entire Prefabricated concrete-filled steel tube superposed column is completed, can Directly proceed with the construction of other structures component.
The production method of above-mentioned Prefabricated concrete-filled steel tube superposed column can be used following method and first prepare respectively as shown in fig. 1 Part:
(1) coxopodite section 1 of the production as steel pipe concrete segment: 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 that side has 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 on the periphery of longitudinal reinforcement 20, fixes on the section upper steel plate 10 of bottom intermediate Anchor 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 of the production as steel pipe concrete segment: 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 that side has 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 It is fixed intermediate on 12 to connect anchor bolt 8, high-strength concrete 22 is poured into steel pipe from 12 pouring hole of interlude upper steel plate, then from side 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) epimerite section 3 of the production as steel pipe concrete segment: steel pipe is made by design requirement, in the inside and outside welding of steel pipe Connector 15, and make side have 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 anchor 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) on production basis 4, pre- buried end anchor bolt 6;
(5) upper beam 5 is made, centre is equipped with top after-pouring concrete cavity 18, and is equipped in top anchor bolt corresponding position Reserved through-hole, the structure for pushing up anchor bolt can be identical as the structure of intermediate anchor bolt, basis 4 with upper beam 5 pour preparation method with In the prior art identical, details are not described herein.
The joining method of Prefabricated concrete-filled steel tube superposed column as described above, as shown in connection with fig. 1, the specific steps are as follows:
(1) the coxopodite section 1 of steel pipe concrete segment is passed through on pre- 6 immobilizing foundation 4 of buried end anchor bolt;
(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 anchor bolt 8 penetrates the interlude lower steel plate 11 of interstitial segment 2 is connect, and is secured with nuts;
(3) interstitial segment of steel pipe concrete segment 2 is put on another interstitial segment 2 of steel pipe concrete segment, steel pipe Connection anchor 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 be secured with nuts;
(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 anchor bolt 8 on the interstitial segment upper steel plate 12 of native segment penetrates the connection of the epimerite section lower steel plate of steel pipe concrete segment Hole, and be secured with nuts;
(5) by upper beam 5 by push up anchor bolt 7 be fixed in the epimerite section 3 of steel pipe concrete segment, epimerite section 3 it is pre-buried The top anchor bolt for pushing up anchor bolt 7 passes through the reserved through-hole of upper beam 5, is secured with nuts;
(6) in the reserved cavity of each segment junction casting concrete formed 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, entire superposed column splicing are completed.
The present invention utilizes steel tube confinement high-strength concrete, improves the big disadvantage of Brittleness of High Strength Concrete, improves its ductility And energy dissipation capacity, peripheral concrete improve the disadvantage of steel pipe resistance to corrosion difference and fire resistance difference, shear connector is by steel Pipe connects to form entirety with high-strength concrete, common peripheral concrete, common stress, compatibility of deformation.In particular, in bridge construction In, it is restricted down by factors such as construction environment, construction space, weather conditions and environmental protections, using precast concrete assembled Structure has bigger development space.
Embodiment 2
The present embodiment is on the basis of embodiment 1, shear connector to be designed as perforated steel plate, perforated steel plate is band Shape steel plate 29, as shown in Figure 10, strip-form steel plate 29, which is equipped with, is spaced equidistant through-hole 24.Being provided with for through-hole 24 is conducive to enhancing Connection between shear connector and concrete is improved and is worked together, the ability of compatibility of deformation.As shown in figure 11, Shear connection Part 15 be set as 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 Setting, and in 19 medial and lateral arranged for interval of steel pipe.Further, it is possible to arrange reinforcing bar in hole, make to play preferably connection With, specifically, there is reinforcing bar running through in the through-hole of the perforated steel plate of one week the same horizontal position along steel pipe or outside steel pipe, It forms reinforcing bar to enclose around steel pipe inner wall or outer wall one, reinforcing bar is solderable in through-holes, in this way, further reinforcing steel pipe and concrete Connection.
As needed, the cross section of steel pipe concrete segment can be set as other shapes, as shown in figure 11, the cross of coxopodite section 1 Section can be set as rectangle, and the cross section of other steel pipe concrete segments such as is similarly set as at the big rectangle at this time.According to It needs, the cross section of steel pipe concrete segment can also be set as other shapes.
The above described is only a preferred embodiment of the present invention, being not the limitation for doing other forms 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 without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.

Claims (6)

1. a kind of Prefabricated concrete-filled steel tube superposed column, which is characterized 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 the lower steel plate being fixedly connected sequentially, concrete filled steel tube main body, upper steel plate, the concrete filled steel tube main body Including a center steel pipe and it is wrapped in its peripheral armored concrete, concrete, coxopodite section and centre are marked in the steel pipe The upper steel plate and lower steel plate between segment and between interstitial segment and epimerite section be respectively correspondingly equipped with connection anchor bolt or Connecting hole is to make adjacent upper lower steel plate be fixedly connected by means of connecting anchor bolt, and each upper steel plate is in the correspondence steel pipe Open-topped position is equipped with pouring hole, and the upper surface on the basis is equipped with bottom anchor bolt, and the coxopodite section is by means of its lower steel plate Connection with bottom anchor bolt and be fixed on it is described on the basis of;
The surfaces externally and internally of the steel pipe is fixed with the shear connector outstanding inside or outside the steel pipe;
The shear connector is perforated steel plate, and the perforated steel plate is the strip-form steel plate equipped with multiple equally spaced vias, institute It states and staggeredly, is in parallel fixed on the steel pipe inside and outside perforated steel plate;
The size of the upper and lower steel plate of the interstitial segment is equal to the cross-sectional area of the concrete filled steel tube main body, wherein Connecting hole is set on interstitial segment and the lower steel plate of epimerite section, the upper steel plate with adjacent coxopodite section or interstitial segment The connection anchor bolt position of upper setting is corresponding, and the position for being correspondingly connected in the concrete filled steel tube main body hole is equipped with and leaves a blank in advance Chamber, in use, after steel pipe concrete segment is fixed using connection anchor bolt, in the reserved cavity casting concrete.
2. superposed column as described in claim 1, which is characterized 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 lower steel plate is greater than the cross section face of the concrete filled steel tube main body Product, and the bottom anchor bolt setting connecting hole is corresponded on the lower steel plate except the concrete filled steel tube main body projected area.
3. superposed column as described in claim 1, which is characterized in that further include upper beam, top is equipped among the upper beam After-pouring concrete cavity, the cavity is interior to be equipped with through-hole, correspondingly, the connecting hole on the upper steel plate of the through-hole and the epimerite section It is correspondingly arranged, top anchor bolt, the area of the upper steel plate of the steel pipe concrete segment of the adjacent upper beam is equipped in the connecting hole Greater than the cross-sectional area of the concrete filled steel tube main body.
4. superposed column as described in claim 1, which is characterized in that the armored concrete of the periphery is in normal concrete Between be provided with multiple longitudinal reinforcements and multiple stirrups, wherein multiple longitudinal reinforcements are along the steel pipe periphery one-week interval cloth It sets, the longitudinal reinforcement upper and lower end is individually fixed in the upper steel plate and lower steel plate, and multiple stirrups, which are surround, is fixed on institute There is the outside of the longitudinal reinforcement, is arranged along the longitudinal reinforcement in longitudinal gap.
5. superposed column as described in claim 1, which is characterized in that the bottom anchor bolt is straight hook anchor bolt, the connection anchor bolt packet Include nut bolt, bolt cap backing plate, nut backing plate and fastening nut.
6. superposed column as described in claim 1, which is characterized in that the cross section of the steel pipe concrete segment is round or side Shape or other shapes.
CN201710525516.1A 2017-06-30 2017-06-30 A kind of Prefabricated concrete-filled steel tube superposed column Active CN107268807B (en)

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Publication number Priority date Publication date Assignee Title
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
CN109610728B (en) * 2018-11-19 2020-11-13 赣州远锦安全科技有限公司 High-strength steel-concrete prefabricated bearing column
CN110952440A (en) * 2019-11-19 2020-04-03 东北大学 Prefabricated section steel concrete and reinforced concrete spliced pier and construction process

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA010214B1 (en) * 2007-05-23 2008-06-30 Общество С Ограниченной Ответственностью «Научно-Технический И Экспериментально-Проектный Центр "Аркос"» A butt joint of composite reinforced concrete columns and a method of forming thereof
KR20110067961A (en) * 2009-12-15 2011-06-22 이창남 Splicing method of preassembled reinforcing bar columns
CN205063181U (en) * 2015-09-25 2016-03-02 上海三益建筑设计有限公司 Steel tube concrete laminated column
CN105908621A (en) * 2016-06-29 2016-08-31 北京工业大学 Damage-controllable self-resetting section prefabricated assembled steel pipe concrete bridge pier and manufacturing method thereof
CN106013614A (en) * 2016-07-28 2016-10-12 董超超 Concrete-filled steel tubular column with defect recognition function
CN106351401A (en) * 2016-11-07 2017-01-25 沈阳建筑大学 Half-assembling type ultrahigh strength steel tube slip casting overlapped column structure and manufacturing method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA010214B1 (en) * 2007-05-23 2008-06-30 Общество С Ограниченной Ответственностью «Научно-Технический И Экспериментально-Проектный Центр "Аркос"» A butt joint of composite reinforced concrete columns and a method of forming thereof
KR20110067961A (en) * 2009-12-15 2011-06-22 이창남 Splicing method of preassembled reinforcing bar columns
CN205063181U (en) * 2015-09-25 2016-03-02 上海三益建筑设计有限公司 Steel tube concrete laminated column
CN105908621A (en) * 2016-06-29 2016-08-31 北京工业大学 Damage-controllable self-resetting section prefabricated assembled steel pipe concrete bridge pier and manufacturing method thereof
CN106013614A (en) * 2016-07-28 2016-10-12 董超超 Concrete-filled steel tubular column with defect recognition function
CN106351401A (en) * 2016-11-07 2017-01-25 沈阳建筑大学 Half-assembling type ultrahigh strength steel tube slip casting overlapped column structure and manufacturing method thereof

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