CN107299721A - A kind of precast concrete open tubular column node connecting structure and its construction method - Google Patents
A kind of precast concrete open tubular column node connecting structure and its construction method Download PDFInfo
- Publication number
- CN107299721A CN107299721A CN201710363166.3A CN201710363166A CN107299721A CN 107299721 A CN107299721 A CN 107299721A CN 201710363166 A CN201710363166 A CN 201710363166A CN 107299721 A CN107299721 A CN 107299721A
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- Prior art keywords
- prefabricated frame
- floor
- cast
- frame trestle
- upper strata
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 19
- 238000010276 construction Methods 0.000 title claims abstract description 12
- 239000004567 concrete Substances 0.000 claims abstract description 44
- 238000003466 welding Methods 0.000 claims abstract description 24
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 15
- 210000003205 muscle Anatomy 0.000 claims description 34
- 239000002131 composite material Substances 0.000 claims description 25
- 108010068370 Glutens Proteins 0.000 claims description 23
- 235000021312 gluten Nutrition 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000002787 reinforcement Effects 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002411 adverse Effects 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
Abstract
The invention discloses a kind of precast concrete open tubular column node connecting structure and its construction method, it uses reinforced concrete hollow column as the upper strata prefabricated frame trestle and lower floor's prefabricated frame trestle of precast concrete open tubular column node connecting structure, concrete amount can significantly be saved, effective transmission that internal force between quick assembling and upper and lower layer prefabricated frame trestle is realized in welding can be carried out by bottom end plate and top end plate between dead load, and upper strata prefabricated frame trestle and lower floor's prefabricated frame trestle to mitigate；And, 1/3 floor height position of floor is between 2/3 floor height position where the connecting portion of upper strata prefabricated frame trestle and lower floor's prefabricated frame trestle is arranged on into the node connecting structure due to the present invention, so that the connecting portion is in frame column bending moment and acted in less region, so as to reduce adverse effect of the Moment to the welding position between upper strata prefabricated frame trestle and lower floor's prefabricated frame trestle, it is ensured that the security of structure.
Description
Technical field
The present invention relates to a kind of precast concrete open tubular column node connecting structure and its construction method.
Background technology
As country widelys popularize to industrialized building, assembled architecture correlation technique is rapidly developed.In research
While assembled architecture performance, the research to assembled arthitecutral structure component is also maked rapid progress, wherein being no lack of to prefabricated components
Form research.
According to the mechanical characteristic of frame column, using prefabricated concrete solid post assembly concrete frame column more, seldom adopting
Use precast concrete open tubular column.Prefabricated concrete pipe pile is commonly used in basic engineering, is filled in terms of its material selection and reinforcement detailing
Divide and consider the characteristics of it is primarily subjected to pressure and design.The mechanical characteristic of frame column is slightly different with pile body, in addition to being pressurized, cylinder
Cause moment of flexure and shearing action also subject to horizontal loading transmission simultaneously, therefore slightly have not with hollow pile in terms of construction and connection
Together.
It can be saved concrete amount on the premise of structure stress requirement is met, subtracted using precast concrete open tubular column
Few dead load, so that foundation cost is saved, with certain economic benefit.
The content of the invention
The technical problems to be solved by the invention are：A kind of precast concrete open tubular column node connecting structure is provided and its applied
Work method.
Above-mentioned technical problem is solved, the technical solution adopted in the present invention is as follows：
A kind of precast concrete open tubular column node connecting structure, it is applied to assembly concrete frame structure, including institute
State the frame column and Vierendeel girder of a certain floor of assembly concrete frame structure, it is characterised in that：Described frame column is by upper
Layer prefabricated frame trestle and lower floor's prefabricated frame trestle composition；
The upper strata prefabricated frame trestle and lower floor's prefabricated frame trestle are reinforced concrete hollow column, and the armored concrete
The upper surface of open tubular column is provided with provided with the top end plate with its vertical muscle upper end welding, lower surface and it indulges what muscle bottom was welded
Bottom end plate, the bottom end plate of the upper strata prefabricated frame trestle is seated in the top end plate of lower floor's prefabricated frame trestle and welded
Connect in succession, and the bottom end plate and top end plate contact surface be located at the node connecting structure where floor 1/3 floor height position
Put between 2/3 floor height position, node connecting structure place floor is stretched into the upper end of the upper strata prefabricated frame trestle
In last layer floor, the lower first floor of floor where the node connecting structure is stretched into the bottom of lower floor's prefabricated frame trestle
In layer；
The Vierendeel girder is connected with the upper strata prefabricated frame trestle.
It is used as the preferred embodiment of the present invention：Described Vierendeel girder is horizontal composite beam, described node connecting structure
Also include cast-in-place ring beam, the horizontal composite beam is connected by the cast-in-place ring beam with the upper strata prefabricated frame trestle, i.e.,：It is described
Horizontal composite beam by precast beam, colligation the prefabricated top surface of the beam stress gluten and be cast in the prefabricated top surface of the beam and by institute
The cast-in-place part concrete composition including stress gluten is stated, the cast-in-place ring beam is to be set around the upper strata prefabricated frame trestle
Steel hoop beams of concrete, stress bottom muscle is passed by the end face of the precast beam and extends the reinforcing bar of the cast-in-place ring beam
Below frame, the stress gluten is extended above the framework of steel reinforcement of the cast-in-place ring beam, and the cast-in-place part of the horizontal composite beam is mixed
Solidifying native and cast-in-place ring beam concrete is poured into a mould simultaneously using cast-in-place mode so that the stress gluten and the anchoring of stress bottom muscle
In the inside concrete of the cast-in-place ring beam.
It is used as the preferred embodiment of the present invention：The upper strata prefabricated frame trestle its be connected with the cast-in-place ring beam it is outer
Wall site is provided with mat surface.
It is used as the preferred embodiment of the present invention：The contact surface of the bottom end plate and top end plate connects positioned at the node
1/2 floor height position of floor where binding structure.
It is used as the preferred embodiment of the present invention：The reinforced concrete hollow column has circular cross section.
It is used as the preferred embodiment of the present invention：Described bottom end plate and top end plate is annular slab, also, the ring
Shape plate has the cross section identical shape with the reinforced concrete hollow column and offers position to be mixed corresponding to the reinforcing bar
The through hole of the vertical muscle of solidifying soil open tubular column；Welding between the vertical muscle bottom of the upper strata prefabricated frame trestle and its bottom end plate,
Welding between the vertical muscle upper end of lower floor's prefabricated frame trestle and its top end plate is：The end of the vertical muscle is penetrated pair
Plug welding welding is carried out in the through hole for the annular slab answered.
It is used as the preferred embodiment of the present invention：Described node connecting structure also includes at least one Vierendeel girder.
A kind of construction method of precast concrete open tubular column node connecting structure, it is characterised in that：Described concrete
Native open tubular column node connecting structure is above-mentioned node connecting structure；Described construction method includes：
Step 1: preparing the upper strata prefabricated frame trestle, lower floor's prefabricated frame trestle and precast beam；
Step 2: the upper strata prefabricated frame trestle and lower floor's prefabricated frame trestle are installed into place so that the upper strata is prefabricated
The bottom end plate of frame column is seated in the top end plate of lower floor's prefabricated frame trestle and is welded to connect, and the bottom end plate with
1/3 floor height position of floor is between 2/3 floor height position where the contact surface of top end plate is located at the node connecting structure, institute
The upper end for stating upper strata prefabricated frame trestle is stretched into the last layer floor of node connecting structure place floor, and the lower floor is pre-
In the lower first floor layer of floor where the node connecting structure is stretched into the bottom of frame column processed；
Step 3: the precast beam is installed in place, and in the prefabricated top surface of the beam colligation stress gluten, and colligation ring
The framework of steel reinforcement of the cast-in-place ring beam set around the upper strata prefabricated frame trestle so that stress bottom muscle is by the precast beam
End face pass and extend below the framework of steel reinforcement of the cast-in-place ring beam, the stress gluten extends the reinforcing bar of the cast-in-place ring beam
Above skeleton；
Step 4: pouring into a mould the cast-in-place part concrete and the cast-in-place ring of the horizontal composite beam simultaneously using cast-in-place mode
The concrete of beam so that the stress gluten and stress bottom muscle are anchored at the inside concrete of the cast-in-place ring beam, to realize
State connection of the horizontal composite beam by the cast-in-place ring beam and the upper strata prefabricated frame trestle.
Compared with prior art, the invention has the advantages that：
First, the present invention is using upper strata of the reinforced concrete hollow column as precast concrete open tubular column node connecting structure
Prefabricated frame trestle and lower floor's prefabricated frame trestle, can significantly save concrete amount, to mitigate dead load, and upper strata prefabricated frame
Can be carried out between trestle and lower floor's prefabricated frame trestle by bottom end plate and top end plate welding realize quick assembling and it is upper,
Effective transmission of internal force between lower floor's prefabricated frame trestle；
Also, because the present invention is by the connecting portion of upper strata prefabricated frame trestle and lower floor's prefabricated frame trestle (i.e. bottom end plate
With the contact surface of top end plate) be arranged on the node connecting structure where floor 1/3 floor height position to 2/3 floor height position it
Between so that the connecting portion is in frame column bending moment and acted in less region, so that it is pre- to upper strata to reduce Moment
The adverse effect of welding position between frame column processed and lower floor's prefabricated frame trestle, it is ensured that the security of structure.
Second, the present invention pours into a mould the cast-in-place part concrete and the cast-in-place ring of horizontal composite beam using cast-in-place mode simultaneously
The concrete of beam so that the stress gluten and stress bottom muscle of horizontal composite beam are anchored at the inside concrete of the cast-in-place ring beam,
To realize the connection between horizontal composite beam and upper strata prefabricated frame trestle, it is ensured that the intensity in beam-column connection region with just
Degree, and ensure that the internal force between horizontal composite beam and upper strata prefabricated frame trestle is effectively transmitted, in favor of realizing framework
The globality of structure.
3rd, the present invention sets coarse by the outer wall position being connected in upper strata prefabricated frame trestle with the cast-in-place ring beam
Face, enhances the connection effect of upper strata prefabricated frame trestle and cast-in-place ring beam.
4th, present invention building where by the way that the contact surface of bottom end plate and top end plate is located at into the node connecting structure
1/2 floor height position of layer so that the connecting portion of upper strata prefabricated frame trestle and lower floor's prefabricated frame trestle is in curved suffered by frame column
The inflection point of square, to reduce Moment to greatest extent to the weld part between upper strata prefabricated frame trestle and lower floor's prefabricated frame trestle
The adverse effect of position.
5th, the construction method of precast concrete open tubular column node connecting structure of the invention has easy construction, quick
Advantage.
Brief description of the drawings
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation of the precast concrete open tubular column node connecting structure of the present invention；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is the schematic diagram of bottom end plate 11 and top end plate 21 in the present invention.
Embodiment
As shown in Figure 1 to Figure 3, disclosed by the invention is a kind of precast concrete open tubular column node connecting structure, and it is applied
In assembly concrete frame structure, include the frame column and Vierendeel girder of a certain floor of assembly concrete frame structure, its
Inventive concept is：The frame column is made up of upper strata prefabricated frame trestle 1 and lower floor's prefabricated frame trestle 2.Upper strata prefabricated frame trestle 1 is with
Layer prefabricated frame trestle 2 is reinforced concrete hollow column, and the reinforced concrete hollow column upper surface be provided with its vertical muscle
The top end plate of end welding, lower surface are provided with the bottom end plate with its vertical muscle bottom welding, the bottom of upper strata prefabricated frame trestle 1
Portion's end plate 11 is seated in the top end plate 21 of lower floor's prefabricated frame trestle 2 and is welded to connect, and the bottom end plate 11 and top end
1/3 floor height position of floor is between 2/3 floor height position where the contact surface of plate 21 is located at node connecting structure, upper strata prefabricated frame
In the last layer floor of floor where node connecting structure is stretched into the upper end of trestle 1, the bottom of lower floor's prefabricated frame trestle 2 is stretched
In the lower first floor layer of floor where ingress attachment structure；Vierendeel girder is connected with upper strata prefabricated frame trestle 1.
So as to which the present invention is using upper strata of the reinforced concrete hollow column as precast concrete open tubular column node connecting structure
Prefabricated frame trestle 1 and lower floor's prefabricated frame trestle 2, can significantly save concrete amount, to mitigate dead load, and upper strata is prefabricated
Welding can be carried out by bottom end plate 11 and top end plate 21 between frame column 1 and lower floor's prefabricated frame trestle 2 and realize fast quick-mounting
Match somebody with somebody and upper and lower layer prefabricated frame trestle between internal force effective transmission；Also, because the present invention is by the He of upper strata prefabricated frame trestle 1
The connecting portion (i.e. the contact surface of bottom end plate 11 and top end plate 21) of lower floor's prefabricated frame trestle 2 is arranged on node connecting structure
1/3 floor height position of place floor is between 2/3 floor height position so that the connecting portion is in frame column bending moment and acts on smaller
Region in, so as to reduce Moment to the welding position between upper strata prefabricated frame trestle 1 and lower floor's prefabricated frame trestle 2
Adverse effect, it is ensured that the security of structure.
On the basis of foregoing invention design, the present invention uses following preferred structure：
It is used as the preferred embodiment of the present invention：Vierendeel girder is horizontal composite beam 3, and node connecting structure also includes cast-in-place ring
Beam 4, horizontal composite beam 3 is connected by cast-in-place ring beam 4 with upper strata prefabricated frame trestle 1, i.e.,：Horizontal composite beam 3 by precast beam 31, tie up
Prick the top surface of precast beam 31 stress gluten 32 and be cast in the top surface of precast beam 31 and by the cast-in-place part including stress gluten 32
Concrete 33 is constituted, and cast-in-place ring beam 4 is the steel hoop beams of concrete set around upper strata prefabricated frame trestle 1, stress bottom muscle 311
The lower section of framework of steel reinforcement 41 of cast-in-place ring beam 4 is passed by the end face of precast beam 31 and is extended, stress gluten 32 extends cast-in-place ring beam 4
The top of framework of steel reinforcement 41, the cast-in-place part concrete 33 of horizontal composite beam 3 uses cast-in-place mode with the concrete 42 of cast-in-place ring beam 4
Pour into a mould simultaneously so that stress gluten 32 and stress bottom muscle 311 are anchored inside the concrete 42 of cast-in-place ring beam 4；In addition, stress surface
The length that muscle 32 and stress bottom muscle 311 stretch into cast-in-place ring beam 4 should meet anchorage length as defined in specification.
So as to simultaneously the present invention pours into a mould the cast-in-place part concrete 33 and cast-in-place ring of horizontal composite beam 3 using cast-in-place mode
The concrete 42 of beam 4 so that the stress gluten 32 and stress bottom muscle 311 of horizontal composite beam 3 are anchored at the concrete of cast-in-place ring beam 4
Inside 42, to realize the connection between horizontal composite beam 3 and upper strata prefabricated frame trestle 1, it is ensured that beam-column connection region
Intensity and rigidity, and ensure that the internal force between horizontal composite beam 3 and upper strata prefabricated frame trestle 1 is effectively transmitted, with profit
In the globality for realizing frame structure.
It is used as the preferred embodiment of the present invention：The outer wall position that upper strata prefabricated frame trestle 1 is connected at it with cast-in-place ring beam 4
Provided with mat surface, to strengthen the connection effect of upper strata prefabricated frame trestle 1 and cast-in-place ring beam 4.
It is used as the preferred embodiment of the present invention：The contact surface of bottom end plate 11 and top end plate 21 is connected knot positioned at node
1/2 floor height position of floor where structure.So as to so that at the connecting portion of upper strata prefabricated frame trestle 1 and lower floor's prefabricated frame trestle 2
In the inflection point of frame column institute bending moment, to reduce Moment to greatest extent to upper strata prefabricated frame trestle 1 and lower floor's prefabricated frame
The adverse effect of welding position between trestle 2.
It is used as the preferred embodiment of the present invention：Reinforced concrete hollow column has circular cross section.
It is used as the preferred embodiment of the present invention：Bottom end plate 11 and top end plate 21 are annular slab, also, the annular
Plate has the cross section identical shape with reinforced concrete hollow column and offers position corresponding to reinforced concrete hollow column
Vertical muscle through hole；Welding, lower floor's prefabricated frame between the bottom of vertical muscle 12 of upper strata prefabricated frame trestle 1 and its bottom end plate 11
Welding between the upper end of vertical muscle 22 of trestle 2 and its top end plate 21 is：The end of vertical muscle penetrates corresponding annular slab
Plug welding welding is carried out in through hole.
It is used as the preferred embodiment of the present invention：Node connecting structure also includes at least one Vierendeel girder.
The invention also discloses the construction method of above-mentioned precast concrete open tubular column node connecting structure, including：
Step 1: preparing upper strata prefabricated frame trestle 1, lower floor's prefabricated frame trestle 2 and precast beam 31；
Step 2: upper strata prefabricated frame trestle 1 and lower floor's prefabricated frame trestle 2 are installed in place so that upper strata prefabricated frame trestle 1
Bottom end plate 11 be seated in the top end plate 21 of lower floor's prefabricated frame trestle 2 and be welded to connect, and the bottom end plate 11 with top
1/3 floor height position of floor is between 2/3 floor height position where the contact surface of portion's end plate 21 is located at node connecting structure, and upper strata is pre-
In the last layer floor of floor where node connecting structure is stretched into the upper end of frame column 1 processed, the lower end of lower floor's prefabricated frame trestle 2
In the lower first floor layer of floor where portion stretches into node connecting structure；
Step 3: precast beam 31 is installed in place, and it is surround in the top surface colligation stress gluten 32 of precast beam 31, and colligation
The framework of steel reinforcement 41 for the cast-in-place ring beam 4 that upper strata prefabricated frame trestle 1 is set so that stress bottom muscle 311 is worn by the end face of precast beam 31
Go out and extend the lower section of framework of steel reinforcement 41 of cast-in-place ring beam 4, stress gluten 32 extends the top of framework of steel reinforcement 41 of cast-in-place ring beam 4；
Step 4: pouring into a mould the cast-in-place part concrete 33 and cast-in-place ring beam 4 of horizontal composite beam 3 simultaneously using cast-in-place mode
Concrete 42 so that stress gluten 32 and stress bottom muscle 311 are anchored inside the concrete 42 of cast-in-place ring beam 4, to realize level
The connection that composite beam 3 passes through cast-in-place ring beam 4 and upper strata prefabricated frame trestle 1.
The present invention is not limited to above-mentioned embodiment, according to the above, according to the ordinary technical knowledge of this area
And customary means, under the premise of above-mentioned basic fundamental thought of the invention is not departed from, the present invention can also make other diversified forms
Equivalent modifications, replace or change, all fall among protection scope of the present invention.
Claims (8)
1. a kind of precast concrete open tubular column node connecting structure, it is applied to assembly concrete frame structure, including described
The frame column and Vierendeel girder of a certain floor of assembly concrete frame structure, it is characterised in that：Described frame column is by upper strata
Prefabricated frame trestle (1) and lower floor's prefabricated frame trestle (2) composition；
The upper strata prefabricated frame trestle (1) and lower floor's prefabricated frame trestle (2) are reinforced concrete hollow column, and the reinforced concrete
The upper surface of native open tubular column is provided with the top end plate welded with its vertical muscle upper end, lower surface and is provided with and its vertical muscle bottom welding
Bottom end plate, the bottom end plate (11) of the upper strata prefabricated frame trestle (1) is seated in the top of lower floor's prefabricated frame trestle (2)
On portion's end plate (21) and it is welded to connect, and the bottom end plate (11) is connected with the contact surface of top end plate (21) positioned at the node
1/3 floor height position of floor is between 2/3 floor height position where structure, and the upper end of the upper strata prefabricated frame trestle (1) is stretched into
In the last layer floor of floor where the node connecting structure, the bottom of lower floor's prefabricated frame trestle (2) is stretched into described
In the lower first floor layer of floor where node connecting structure；
The Vierendeel girder is connected with the upper strata prefabricated frame trestle (1).
2. node connecting structure according to claim 1, it is characterised in that：Described Vierendeel girder is horizontal composite beam (3),
Described node connecting structure also includes cast-in-place ring beam (4), and the horizontal composite beam (3) passes through the cast-in-place ring beam (4) and institute
Upper strata prefabricated frame trestle (1) connection is stated, i.e.,：The horizontal composite beam (3) is by precast beam (31), colligation in the precast beam (31)
The stress gluten (32) of top surface and it is cast in the precast beam (31) top surface and by the cast-in-place portion including the stress gluten (32)
Concrete (33) is divided to constitute, the cast-in-place ring beam (4) is the steel hoop coagulation set around the upper strata prefabricated frame trestle (1)
Tu Liang, stress bottom muscle (311) is passed by the end face of the precast beam (31) and extends the reinforcing bar of the cast-in-place ring beam (4)
Below frame (41), the stress gluten (32) is extended above the framework of steel reinforcement (41) of the cast-in-place ring beam (4), the level overlapping
The concrete (42) of the cast-in-place part concrete (33) of beam (3) and the cast-in-place ring beam (4) is poured into a mould simultaneously using cast-in-place mode, is made
Obtain the stress gluten (32) and stress bottom muscle (311) is anchored at concrete (42) inside of the cast-in-place ring beam (4).
3. node connecting structure according to claim 2, it is characterised in that：The upper strata prefabricated frame trestle (1) its with
The connected outer wall position of the cast-in-place ring beam (4) is provided with mat surface.
4. the node connecting structure according to claims 1 to 3 any one, it is characterised in that：The bottom end plate (11)
1/2 floor height position of floor where being located at the node connecting structure with the contact surface of top end plate (21).
5. the node connecting structure according to claims 1 to 3 any one, it is characterised in that：The armored concrete is empty
Stem has circular cross section.
6. the node connecting structure according to claims 1 to 3 any one, it is characterised in that：Described bottom end plate
And top end plate (21) is annular slab, also, the annular slab has the cross section with the reinforced concrete hollow column (11)
Identical shape simultaneously offers through hole of the position corresponding to the vertical muscle of the reinforced concrete hollow column；The upper strata precast frame
Welding between vertical muscle (12) bottom of post (1) and its bottom end plate (11), the vertical muscle of lower floor's prefabricated frame trestle (2)
(22) welding between upper end and its top end plate (21) is：The end of the vertical muscle penetrates the through hole of corresponding annular slab
Middle progress plug welding welding.
7. the node connecting structure according to claims 1 to 3 any one, it is characterised in that：Described node connection knot
Structure also includes at least one Vierendeel girder.
8. a kind of construction method of precast concrete open tubular column node connecting structure, it is characterised in that：Described precast concrete
Open tubular column node connecting structure is the node connecting structure described in Claims 2 or 3；Described construction method includes：
Step 1: preparing the upper strata prefabricated frame trestle (1), lower floor's prefabricated frame trestle (2) and precast beam (31)；
Step 2: the upper strata prefabricated frame trestle (1) and lower floor's prefabricated frame trestle (2) are installed into place so that the upper strata is pre-
The bottom end plate (11) of frame column (1) processed is seated in the top end plate (21) of lower floor's prefabricated frame trestle (2) and the company of welding
Connect, and the bottom end plate (11) and top end plate (21) contact surface be located at the node connecting structure where 1/3 layer of floor
High position is between 2/3 floor height position, and the upper end of the upper strata prefabricated frame trestle (1) is stretched into where the node connecting structure
In the last layer floor of floor, floor where the node connecting structure is stretched into the bottom of lower floor's prefabricated frame trestle (2)
Lower first floor layer in；
Step 3: the precast beam (31) is installed into place, and in the precast beam (31) top surface colligation stress gluten (32), with
And colligation around the upper strata prefabricated frame trestle (1) set the cast-in-place ring beam (4) framework of steel reinforcement (41) so that it is described by
Power bottom muscle (311) is passed by the end face of the precast beam (31) and extended below the framework of steel reinforcement (41) of the cast-in-place ring beam (4),
The stress gluten (32) is extended above the framework of steel reinforcement (41) of the cast-in-place ring beam (4)；
Step 4: using cast-in-place mode pour into a mould simultaneously the cast-in-place part concrete (33) of the horizontal composite beam (3) with it is described existing
Pour the concrete (42) of ring beam (4) so that the stress gluten (32) and stress bottom muscle (311) are anchored at the cast-in-place ring beam
(4) concrete (42) is internal, to realize that the horizontal composite beam (3) is prefabricated by the cast-in-place ring beam (4) and the upper strata
The connection of frame column (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710363166.3A CN107299721A (en) | 2017-05-22 | 2017-05-22 | A kind of precast concrete open tubular column node connecting structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710363166.3A CN107299721A (en) | 2017-05-22 | 2017-05-22 | A kind of precast concrete open tubular column node connecting structure and its construction method |
Publications (1)
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| CN110359547A (en) * | 2019-06-15 | 2019-10-22 | 广东一中建筑工程有限公司 | Concrete structure and the segmentation casting method for utilizing the concrete structure |
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Application publication date: 20171027 |