CN207829298U - A kind of prefabricated assembled embedded steel sleeve connection concrete column - Google Patents

A kind of prefabricated assembled embedded steel sleeve connection concrete column Download PDF

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Publication number
CN207829298U
CN207829298U CN201721679273.9U CN201721679273U CN207829298U CN 207829298 U CN207829298 U CN 207829298U CN 201721679273 U CN201721679273 U CN 201721679273U CN 207829298 U CN207829298 U CN 207829298U
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China
Prior art keywords
precast concrete
inbuilt
steel tube
concrete
steel
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Expired - Fee Related
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CN201721679273.9U
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Chinese (zh)
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周靖
方小丹
熊枫
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South China University of Technology SCUT
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South China University of Technology SCUT
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Abstract

It is related to structural engineering field, more particularly to a kind of prefabricated assembled embedded steel sleeve connects concrete column.A kind of prefabricated assembled embedded steel sleeve connection concrete column, including precast concrete unit and housing short steel pipes, precast concrete unit include precast concrete and inbuilt steel tube;Inbuilt steel tube is preset in precast concrete, and the upper and lower part of precast concrete is stretched out in the upper and lower side part of inbuilt steel tube, and high-strength concrete is filled with inside inbuilt steel tube;When the connection of precast concrete unit is mounted to concrete column, the outside for the inbuilt steel tube that housing short steel pipes are set in the outside of the inbuilt steel tube of lower layer's precast concrete top stretching and upper layer precast concrete lower part is stretched out;Housing short steel pipes and inbuilt steel tube radially overlapping portion extend radially through fixation by bolt, prevent between housing short steel pipes and inbuilt steel tube that axial and circumferential are opposite to be slided.Concrete column installation contraposition is accurate, convenient, and structural stability is high, and shearing resistance, anti-seismic performance are good.

Description

A kind of prefabricated assembled embedded steel sleeve connection concrete column
Technical field
The utility model is related to structural engineering field, more particularly to a kind of prefabricated assembled embedded steel sleeve connection are mixed Solidifying earth pillar.
Background technology
Novel prefabricated assembled concrete structure emphasizes that the concept of " equivalent cast-in-place ", globality are to ensure that structure safety Key performance.The seam measure of prefabricated member should fully consider the feasibility actually executed, and should fully ensure that seam crossing Performance, need to use different joint treatment measures for different positions.In assembly concrete frame structure, reinforcing bar connects The construction measure and construction quality connect is affected to the anti-seismic performance of structure entirety so that assembly concrete frame structure is anti- Shock stability is difficult to be fully equivalent to cast-in-place structural.Relative to cast in place frame column, the rigidity of prefabricated assembled frame column connecting portion Weakened with bearing capacity, structural integrity, resistance to compression stability reduce, to reduce assembly concrete frame structure Anti-seismic performance, structure building height are restricted.Seam that is how reliable, economically handling assembly concrete frame structure well And bar connecting, it is still a project for needing to continue research.The country has been introduced has used reinforcing bar for many years in developed country Sleeve grouting interconnection technique, but Vertical bar connection construction is still more complicated, construction process requirement is high, assembling Quality Control is difficult Degree is big.
The country has carried out numerous studies for prefabricated assembling type reinforced concrete column and its vertical connection method, but due to each The prefabricated assembled concrete frame construction that ground is implemented is few, and use the function of building, height, the number of plies, seismic fortification intensity etc. are fitted Stringent with area requirement, the anti-seismic performance of prefabricated assembled concrete frame construction is limited by vertical interconnection technique.How to ensure Higher prefabrication and assembly construction rate gives full play to the technical advantage that prefabricated, assembly provides, the following prefabricated assembled concrete structure technology It can be developed on a large scale very much in component, structure etc..
Utility model content
For the technical problems in the prior art, the purpose of this utility model is:It is accurate to provide a kind of installation contraposition Easily prefabricated assembled embedded steel sleeve connects concrete column.
In order to achieve the above object, the utility model adopts the following technical solution:
A kind of prefabricated assembled embedded steel sleeve connection concrete column, including precast concrete unit and housing short steel pipes, Precast concrete unit includes precast concrete and inbuilt steel tube;Inbuilt steel tube is preset in precast concrete, inbuilt steel tube The top of precast concrete is stretched out in upper end, and the lower end of inbuilt steel tube is stretched out the lower part of precast concrete, filled inside inbuilt steel tube There is high-strength concrete;When the connection of precast concrete unit is mounted to concrete column, housing short steel pipes are set in lower layer's concrete The outside for the inbuilt steel tube that the outside and upper layer precast concrete lower part for the inbuilt steel tube that native top is stretched out are stretched out;Housing short steel pipes Fixation is extended radially through by bolt with inbuilt steel tube radially overlapping portion, prevent between housing short steel pipes and inbuilt steel tube it is axial and It is relatively slipping in the circumferential direction.
As a preferred embodiment, housing short steel pipes extend radially through fixation with inbuilt steel tube radially overlapping portion by bolt group, It is circumferentially distributed along housing short steel pipes in fixed angle between each bolt in bolt group.
As a preferred embodiment, two groups or three groups of bolt groups are distributed in the axial direction along housing short steel pipes.
As a preferred embodiment, inbuilt steel tube stretches out the unilateral partial-length of precast concrete between 80~120 millimeters;Outside It covers short steel pipes and inbuilt steel tube stretches out the part socket length of precast concrete between 160~240 millimeters.
As a preferred embodiment, the outer wall of inbuilt steel tube be equipped with several shear hoops, shear hoop along inbuilt steel tube axis To distribution.
As a preferred embodiment, the spacing between each shear hoop is between 300~450 millimeters.
As a preferred embodiment, precast concrete unit further include be embedded in vertical applied force reinforcing bar inside precast concrete and The upper and lower part of precast concrete, two neighboring precast concrete list are stretched out in stirrup, the upper and lower side of vertical applied force reinforcing bar, part The vertical applied force reinforcing bar of member squeezes bar connecting by steel bushing.
As a preferred embodiment, the cross sectional shape of concrete column is rectangular or round.
The assembly method of prefabricated assembled embedded steel sleeve connection concrete column is as follows:
The installation of the precast concrete unit of first layer:
Precast concrete unit consolidation is mounted on cast-in-place reinforced concrete foundation;
It will be in the sponson embedment reinforced concrete foundation of precast concrete lower part inbuilt steel tube;
The installation of the precast concrete unit of the second layer:
Housing short steel pipes are set on the inbuilt steel tube of first layer precast concrete top stretching, by the prefabricated mixed of the second layer The inbuilt steel tube that solidifying soil lower part is stretched out is inserted into contraposition in housing short steel pipes, is stretched out in housing short steel pipes and levels inbuilt steel tube pre- The part of concrete processed extends radially through fixation by bolt group, prevents relative motion between the two axially and radially;
Then, the vertical applied force reinforcing bar of second layer precast concrete unit lower part is prefabricated mixed by steel bushing and first layer The vertical applied force pressed splice on solidifying soil unit top, i.e. vertical applied force reinforcing bar dock in steel bushing.
It recycles successively, completes the assembly of the prefabricated assembled embedded steel sleeve connection concrete column of whole of each layer.
As a preferred embodiment, being often perfused into inbuilt steel tube high-strength after the assembly of 2 or 3 layers of precast concrete unit of completion Concrete, and so on.
Principle explanation:The precast concrete shipped being prefabricated in the factory to in-site installation is spliced, first layer is prefabricated The connection of concrete unit:Inbuilt steel tube and vertical applied force reinforcing bar that first layer precast concrete lower part is stretched out are embedded to cast-in-place In reinforced concrete foundation, after cast-in-place armored concrete consolidation, in the outer of the inbuilt steel tube that precast concrete top is stretched out Side is arranged housing short steel pipes;
The inbuilt steel tube insertion that second layer precast concrete lower part is stretched out is set in first layer precast concrete top to stretch Interior contraposition in the housing short steel pipes of the inbuilt steel tube gone out, will be in housing short steel pipes and the stretching of adjacent two layers precast concrete unit Embedding steel pipe radially overlapping portion extends radially through fixation by bolt group, prevents relative motion between the two axially and radially;And The vertical applied force reinforcing bar that adjacent levels precast concrete unit stretches out is press-connected by steel sleeve;
After the assembly for often completing 2 or 3 layers of precast concrete unit, high-strength concrete is perfused into inbuilt steel tube;
It recycles successively, connects and be perfused high-strength concrete, until completing the assembly of whole concrete column.
Generally speaking, the utility model has the following advantages that:
1. the cross sectional shape of prefabricated assembled embedded steel sleeve connection concrete column can be rectangular or round, section combination Mode is more flexible.
2. applicable structural system increases, prefabricated assembled embedded steel sleeve connection concrete column can be applied to frame knot The systems such as structure, frame shear wall structure, frame-core wall structure.
3. vertical reinforcement is improved to dry operation using the sleeve pressed splice of more simple Jie, by wet construction, significantly simple Change construction Joining Technology, improve 50% or more construction efficiency.
4. reinforced beam is pre-constructed unit in node region, the jointing setting of upper and lower precast concrete unit exists Beam bottom significantly improves shearing resistance, the anti-seismic performance of node, more to the bearing capacity and stiffness between inflection point, improving node region Readily satisfy the Aseismic Design principle of " strong node, weak component ".
5. inbuilt steel tube high-strength concrete cylinder not only plays assembly positioning action, and be concrete column resistance to compression, bending resistance, The stress main body of shearing resistance, carrying failure mode are different from other precast concrete columns.
6. being set in the junction between upper layer and lower layer inbuilt steel tube high-strength concrete cylinder using housing short steel pipes, improve The Stability and veracity of installation so that easier for installation;The pre-buried single layer inbuilt steel tube in precast concrete unit utilizes Housing short steel pipes are arranged auxiliary connection installation, not only ensure that the intensity of concrete column but also have saved raw material.
Description of the drawings
Fig. 1 is the cross-sectional view that circular prefabricated assembled embedded steel sleeve connects concrete column.
Fig. 2 is the cross-sectional view that rectangular prefabricated assembled embedded steel sleeve connects concrete column.
Fig. 3 is the A-A cross-sectional views of Fig. 1 or Fig. 2.
The connection close-up schematic view of Fig. 4 inbuilt steel tube, housing short steel pipes between the concrete column of the upper and lower.
Fig. 5 is the B-B cross-sectional views of Fig. 4.
Label and corresponding parts title in figure are:1 is concrete column, and 2 be inbuilt steel tube, and 3 be housing short steel pipes, 4 be high-strength concrete, and 5 be bolt, and 6 be shear hoop, and 7 be vertical applied force reinforcing bar, and 8 be stirrup, and 9 be steel bushing, and 10 be frame Beam, 11 be precast concrete.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
A kind of prefabricated assembled embedded steel sleeve connection concrete column, including precast concrete unit and housing short steel pipes, Precast concrete unit includes precast concrete and inbuilt steel tube;Inbuilt steel tube is preset in precast concrete, inbuilt steel tube The top of precast concrete is stretched out in upper end, and the lower part of precast concrete is stretched out in the lower end of inbuilt steel tube, and inbuilt steel tube stretches out prefabricated The unilateral partial-length of concrete is 100 millimeters;High-strength concrete is filled with inside inbuilt steel tube;Precast concrete unit connects When being mounted to concrete column, housing short steel pipes are set in the outside and upper layer of the inbuilt steel tube of lower layer's precast concrete top stretching The outside for the inbuilt steel tube that precast concrete lower part is stretched out, the part that housing short steel pipes stretch out precast concrete with inbuilt steel tube cover Spreading degree is 200 millimeters;Precast concrete unit further includes vertical applied force reinforcing bar and the stirrup being embedded in inside precast concrete, The upper and lower part of precast concrete is stretched out in the upper and lower side of vertical applied force reinforcing bar, part, two neighboring precast concrete unit Vertical applied force reinforcing bar squeezes bar connecting by steel bushing.
Housing short steel pipes extend radially through fixation with inbuilt steel tube radially overlapping portion by bolt group, prevent housing short steel pipes Axial and circumferential are opposite between inbuilt steel tube slides;Circumferentially divide along housing short steel pipes in fixed angle between each bolt in bolt group Two groups of bolt groups are distributed with along the axial direction of housing short steel pipes, to improve the stability between housing short steel pipes and inbuilt steel tube in cloth.
The outer wall of inbuilt steel tube is equipped with several shear hoops, and shear hoop is distributed along the axial direction of inbuilt steel tube, each shearing resistance Spacing between hoop is 450 millimeters.
The cross sectional shape of concrete column is rectangle.
The assembly method of prefabricated assembled embedded steel sleeve connection concrete column is as follows:
The installation of the precast concrete unit of first layer:
Precast concrete unit consolidation is mounted on cast-in-place reinforced concrete foundation;
It will be in the sponson embedment reinforced concrete foundation of precast concrete lower part inbuilt steel tube;
The installation of the precast concrete unit of the second layer:
Housing short steel pipes are set on the inbuilt steel tube of first layer precast concrete top stretching, by the prefabricated mixed of the second layer The inbuilt steel tube that solidifying soil lower part is stretched out is inserted into contraposition in housing short steel pipes, is stretched out in housing short steel pipes and levels inbuilt steel tube pre- The part of concrete processed extends radially through fixation by bolt group, prevents relative motion between the two axially and radially;
Then, the vertical applied force reinforcing bar of second layer precast concrete unit lower part is prefabricated mixed by steel bushing and first layer The vertical applied force pressed splice on solidifying soil unit top, i.e. vertical applied force reinforcing bar dock in steel bushing.
It recycles successively, completes the assembly of the prefabricated assembled embedded steel sleeve connection concrete column of whole of each layer.Often complete 2 layers After the assembly of precast concrete unit, high-strength concrete is perfused into inbuilt steel tube, and so on.
Other than the mode that above-described embodiment refers to, the cross sectional shape of concrete column can also be round;Along the short steel of housing The bolt group of pipe being axially distributed can also be three groups or more;Inbuilt steel tube stretches out the unilateral partial-length of precast concrete also It can be 80 millimeters, the part socket length that corresponding housing short steel pipes stretch out precast concrete with inbuilt steel tube is 160 Millimeter;The unilateral partial-length that inbuilt steel tube stretches out precast concrete can also be 120 millimeters, corresponding housing short steel pipes The part socket length that precast concrete is stretched out with inbuilt steel tube is 240 millimeters;In assembly, 3 layers of precast concrete are often completed After the assembly of unit, high-strength concrete is perfused into inbuilt steel tube, and so on;These mapping modes are in the utility model In protection domain.
Above-described embodiment is the preferable embodiment of utility model, but the embodiment of the utility model is not by above-mentioned reality Apply the limitation of example, under other any Spirit Essences and principle without departing from the utility model made by change, modification, substitute, Combination simplifies, and should be equivalent substitute mode, is included within the scope of protection of the utility model.

Claims (8)

1. a kind of prefabricated assembled embedded steel sleeve connects concrete column, it is characterised in that:Including precast concrete unit and outside Short steel pipes are covered, precast concrete unit includes precast concrete and inbuilt steel tube;Inbuilt steel tube is preset in precast concrete, interior The top of precast concrete is stretched out in the upper end of embedding steel pipe, and the lower part of precast concrete, inbuilt steel tube are stretched out in the lower end of inbuilt steel tube Inside is filled with high-strength concrete;When the connection of precast concrete unit is mounted to concrete column, housing short steel pipes are set in lower layer The outside for the inbuilt steel tube that the outside and upper layer precast concrete lower part for the inbuilt steel tube that precast concrete top is stretched out are stretched out;Outside Set short steel pipes and inbuilt steel tube radially overlapping portion extend radially through fixation by bolt, prevent housing short steel pipes and inbuilt steel tube it Between it is axial and relatively slipping in the circumferential direction.
2. prefabricated assembled embedded steel sleeve described in accordance with the claim 1 connects concrete column, it is characterised in that:The short steel of housing Pipe extends radially through fixation with inbuilt steel tube radially overlapping portion by bolt group, in bolt group between each bolt in fixed angle along outer It is circumferentially distributed to cover short steel pipes.
3. prefabricated assembled embedded steel sleeve connects concrete column according to claim 2, it is characterised in that:It is short along housing Bolt group more than two is distributed in the axial direction of steel pipe.
4. prefabricated assembled embedded steel sleeve described in accordance with the claim 1 connects concrete column, it is characterised in that:Inbuilt steel tube The unilateral partial-length of precast concrete is stretched out between 80~120 millimeters;Housing short steel pipes stretch out prefabricated mixed with inbuilt steel tube The part for coagulating soil is socketed length between 160~240 millimeters.
5. prefabricated assembled embedded steel sleeve described in accordance with the claim 1 connects concrete column, it is characterised in that:Inbuilt steel tube Outer wall be equipped with several shear hoops, shear hoop along inbuilt steel tube axial direction be distributed.
6. prefabricated assembled embedded steel sleeve connects concrete column according to claim 5, it is characterised in that:Each anti-shear ring Spacing between hoop is between 300~450 millimeters.
7. prefabricated assembled embedded steel sleeve described in accordance with the claim 1 connects concrete column, it is characterised in that:Concrete Native unit further includes vertical applied force reinforcing bar and the stirrup being embedded in inside precast concrete, the upper and lower side of vertical applied force reinforcing bar, portion The upper and lower part for stretching out precast concrete, the vertical applied force reinforcing bar of two neighboring precast concrete unit is divided to be squeezed by steel bushing Pressing reinforcing connects.
8. prefabricated assembled embedded steel sleeve described in accordance with the claim 1 connects concrete column, it is characterised in that:Concrete column Cross sectional shape be rectangle or circle.
CN201721679273.9U 2017-12-06 2017-12-06 A kind of prefabricated assembled embedded steel sleeve connection concrete column Expired - Fee Related CN207829298U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108005309A (en) * 2017-12-06 2018-05-08 华南理工大学 A kind of prefabricated assembled embedded steel sleeve connection concrete column and its assembly method
CN109853858A (en) * 2019-01-28 2019-06-07 南方科技大学 Positioning connection reinforcing part for assembling concrete member or structure and assembling method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108005309A (en) * 2017-12-06 2018-05-08 华南理工大学 A kind of prefabricated assembled embedded steel sleeve connection concrete column and its assembly method
CN108005309B (en) * 2017-12-06 2023-10-20 华南理工大学 Prefabricated assembled embedded steel sleeve connecting concrete column and assembling method thereof
CN109853858A (en) * 2019-01-28 2019-06-07 南方科技大学 Positioning connection reinforcing part for assembling concrete member or structure and assembling method

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Granted publication date: 20180907

Termination date: 20201206