CN107327030A - The plate-column structure node and its cap prefabricated components and construction method of a kind of steel column - Google Patents
The plate-column structure node and its cap prefabricated components and construction method of a kind of steel column Download PDFInfo
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- CN107327030A CN107327030A CN201710761163.5A CN201710761163A CN107327030A CN 107327030 A CN107327030 A CN 107327030A CN 201710761163 A CN201710761163 A CN 201710761163A CN 107327030 A CN107327030 A CN 107327030A
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- steel
- column
- floor
- prefabricated
- cap
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 217
- 239000010959 steel Substances 0.000 title claims abstract description 217
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 230000002787 reinforcement Effects 0.000 claims abstract description 77
- 239000004567 concrete Substances 0.000 claims abstract description 38
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 28
- 238000011065 in-situ storage Methods 0.000 claims abstract description 7
- 210000003205 muscle Anatomy 0.000 claims description 21
- 238000010008 shearing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- -1 is poured Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000009417 prefabrication Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 108010068370 Glutens Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000021312 gluten Nutrition 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
Abstract
The invention discloses a kind of plate-column structure node of steel column, including steel column, prefabricated cap or supporting plate, floor prefabricated components and its connection faying face, reinforcing bar and delay-pour joint concrete；Shaped steel outer surface of column be welded on provided with least one anti-shear ring the framework of steel reinforcement of steel column periphery and annular beam type, annular beam type framework of steel reinforcement its by being constituted no less than four steel hoops and the radial arrangement stirrup vertical with steel hoop, ring beam type steel reinforcement cage that steel hoop is formed in stirrup with the corner of stirrup and edge colligation, the stirrup of the framework of steel reinforcement of annular beam type are from close to cap or supporting plate bottom to the in-situ layer of floor close to upper surface.The invention also discloses a kind of cap prefabricated components and construction method.The plate-column structure node and its cap prefabricated components and construction method of the steel column of the present invention can realize the plate-column structure assembling construction of steel column, and difficulty of construction is low, and support is few, and cost is low, efficiency high.
Description
Technical field
The present invention relates to concrete structure and prefabrication construction applications, specially a kind of buck plate pillar structure
System and its cap prefabricated components and construction method.
Background technology
Because assembled architecture meets the mode of production of environmental protection and energy saving, country proposes the time with 10 years or so, makes dress
The ratio for accounting for new building with formula building reaches 30% developing goal；And plate-column structure has in equal use space premise
Floor height can be reduced, there is good economy in hypogee and as Multilayer parking, plate-column structure can cast in situs also may be used
Realizing prefabricated assembled will also have the very big market space.
The node structure for building structure being split into component and component assembling is building industrialization --- assembled architecture
The crucial first step.
Current assembled steel column plate-column structure has the disadvantage that：
(1) mounting technology of plate-column structure does not have improved and complete at present, and the plate-column structure assembly node of steel column is gone back substantially
It is blank.
(2) plate-column structure connecting node has the disclosed A of patent CN 102071747 at present《Concrete-filled steel square tubular column
The node and preparation method being connected with reinforced concrete floor》And CN101457548A《Concrete-filled circular steel tube column and reinforced concrete
The node and making side's hair of Tulou lid connection》, there is problem in it：(1) what its was applicable is cast-in-place concrete structure, is not assembling
Structure, do not account for assembling need solution the problem of；(2) its connection section for being only applicable to shaped steel tubing (round steel pipe, square steel tube)
Point；(3) its node emphasis is to solve the connecting node of tubing shaped steel and beam, without solving specifically to ask very well for plate-column structure
Topic；(4) connecting, without for assembling construction characteristic Solve problems in construction for other steel columns is not solved.
The content of the invention
The purpose of the present invention one is to provide a kind of plate-column structure node of steel column, can realize the plate-column structure of steel column
Assembling construction, difficulty of construction is low, and support is few, and cost is low, efficiency high.
The purpose of the present invention two is to provide the prefabricated cap or supporting plate of a kind of plate-column structure node of steel column, can realize
The plate-column structure assembling construction of steel column, difficulty of construction is low, and support is few, and cost is low, efficiency high.
The purpose of the present invention three is to provide a kind of construction method of the plate-column structure node of steel column, can realize steel column
Plate-column structure assembling construction, difficulty of construction is low, and support is few, and cost is low, efficiency high.
To achieve the above object one, the present invention provides a kind of plate-column structure node of steel column, including steel column, prefabricated post
Cap or supporting plate, floor prefabricated components and its connection faying face, reinforcing bar and delay-pour joint concrete；Specially described nodal plane is
Rectangle, the sideline direction of rectangle are identical with the major axes orientation of plate-column structure, and shaped steel outer surface of column is provided with least one shearing resistance boxing
Be connected on steel column periphery, steel column be additionally provided with the framework of steel reinforcement of annular beam type, annular beam type framework of steel reinforcement its by no less than four
Root steel hoop and the radial arrangement stirrup composition vertical with steel hoop, corner and side of the steel hoop in stirrup with stirrup
Ring beam type steel reinforcement cage that edge colligation is formed, the stirrup of the framework of steel reinforcement of annular beam type are from close to prefabricated cap or supporting plate bottom to building
The in-situ layer of plate is close to upper surface；Floor prefabricated components are in range of nodes against the plate bottom arrangement of reinforcement of steel column center section and upper
Portion's arrangement of reinforcement anchor into the framework of steel reinforcement of annular beam type close to steel column surface, floor prefabricated components in range of nodes against steel column
The bottom muscle and top arrangement of reinforcement of marginal portion anchor into the framework of steel reinforcement of annular beam type close to steel column surface or bypassed outside steel column side
Side anchored within the corresponding sideline of steel column by steel column both sides, the floor of part in range of nodes beyond shaped steel column section is pre-
The plate bottom arrangement of reinforcement and top arrangement of reinforcement of component processed are anchored within the corresponding sideline of steel column.
As a further improvement on the present invention, the anti-shear ring is welded on the bottom position of cap or supporting plate using steel plate
Put, size is more than the reserved cavity of prefabricated cap or supporting plate center.Its benefit is can be cap or support without support and template
Plate is assemblied in the required position of node.
As a further improvement on the present invention, deep floor, deep floor one side and shearing resistance are welded with the anti-shear ring
Boxing is connect while being welded with steel column.Its advantage is increase shearing resistance ring stiffness, improves shear-carrying capacity.
As a further improvement on the present invention, the steel hoop of the top minimum diameter of the framework of steel reinforcement of the annular beam type
Its diameter is less than shearing resistance ring diameter.Its advantage is to increase the shear-carrying capacity of joint reinforcing bar concrete, shearing resistance is become reinforcing bar
The power of tension.
To achieve the above object two, the present invention provides a kind of prefabricated cap or supporting plate of the plate-column structure node of steel column,
It is prefabricated into by armored concrete, and prefabricated cap or supporting plate plane is that rectangle, center are hole, and it is furnished with no less than two annulars
Reinforcing bar and the reserved steel bar taken the shape of the letter U equipped with shape, the reserved steel bar bottom that shape takes the shape of the letter U is embedded in prefabricated cap or supporting plate is mixed
Solidifying soil is interior, the reserved steel bar of U-shaped protrudes upward structure joint face, plane where the reinforcing bar of the reserved steel bar taken the shape of the letter U and annular steel
Muscle is vertical and is that the center that annular array is arranged, annular array is arranged is the center of circle of steel hoop, matches somebody with somebody steel hoop and is placed on U
Corner and edge and colligation in the reserved steel bar of shape.
As a further improvement on the present invention, the prefabricated cap or supporting plate plane are rectangle, and its plane outside dimension is more than
Steel hoop maximum gauge.
To achieve the above object three, the present invention provides a kind of construction method of the plate-column structure node of steel column, first in work
The prefabricated floor prefabricated components of factory, steel column and its anti-shear ring, prefabricated cap or supporting plate, make required reinforcing bar, feature exists
In：Working procedure at the scene is as follows：
(1), support, floor floor needed for vertical supporting, including the support of cap or supporting plate and precast floor unit be installed
Component is whole thick floor prefabricated components or laminated floor slab prefabricated components；
(2), be inserted in cap or supporting plate on already installed vertical supporting top, install it is accurate in place with meet it is smooth will
Ask.
(3), the floor prefabricated components in one direction of lifting cap or supporting plate, floor prefabricated components length end and cap or support
Plate is docked or overlapped, and the upper reinforcement of the floor prefabricated components first lifted bends up upwards, then lift other direction floor it is prefabricated
Also dock or overlap with cap or supporting plate in component, another floor prefabricated components length end；Pouring concrete pours groove after formation.
(4), assembling reinforcement；Upper reinforcement first the whole thick floor prefabricated components originally bent up is in place or in laminated floor slab
Colligation floor upper reinforcement is completed on the overlapping layers of prefabricated components, and also colligation is good for additional bar, then the upper of ring skeleton reinforcing bar
Portion's steel hoop is inserted in the reserved steel bar taken the shape of the letter U of prefabricated cap or supporting plate, and the reserved steel bar taken the shape of the letter U is bent into closure hoop
Muscle, completes ring skeleton.
(5) delay-pour joint concrete, is poured, concrete setting, which reaches, removes vertical supporting after intensity, completes node construction.
Compared with prior art, plate-column structure assembling system of the invention and floor prefabricated components and construction method is beneficial
Effect is as follows：
(1) plate-column structure for assembled steel column provides a kind of new node, fills up the shaped steel of assembled plate-column structure
Post and the blank of precast floor slab connecting node.And patent CN 102071747A《Concrete-filled steel square tubular column and reinforced concrete floor
The node and preparation method of connection》And CN101457548A《The node that concrete-filled circular steel tube column is connected with reinforced concrete floor
And making side's hair》, disclose cast-in-place concrete structure node.
(2) plate-column structure assembly node is applied to the steel column in any form section, and it greatly simplifies prefabricated components shape
Formula, reduction difficulty of construction, more preferable standardized production.And patent CN 102071747A and CN101457548A, it is only applicable to tubing
Shaped steel (round steel pipe and rectangular steel pipe).
(3) plate-column structure assembly node, which can be realized, exempts from template construction.
(4) clearly, a greater part of slab strips on columns reinforcing bar can reach traditional approach to plate-column structure assembly node power bang path
Anchoring or connection, only at least partially through steel hoop skeleton transmit.And patent CN 102071747A and CN101457548A
The whole reinforcing bars of the node are transmitted by ring beam stirrup, made to go back more than beam arrangement of reinforcement and close constructional difficulties and cost height.
(5) construction method of rod structure assembling can simplify working procedure, the installment work for reducing support, improve efficiency.
By following description and with reference to accompanying drawing, the present invention will become more fully apparent, and these accompanying drawings are used to explain the present invention
Embodiment.
Brief description of the drawings
Fig. 1 is the nodal plane figure of case one of the present invention；
Fig. 2 is Fig. 1 A-A sections；
Fig. 3 is Fig. 1 B-B sections；
Fig. 4 is Fig. 1 anti-shear ring drawing, wherein it is lower loop plan that (A), which is top loop plan, (B),；
Fig. 5 is Fig. 1 cap schematic diagram, wherein (A) be cap top view, (B) be I-I sections, (C) be II-II section,
(D) it is III-III section；
Fig. 6 is the nodal plane figure of case two of the present invention；
Fig. 7 is Fig. 6 node (A-A sections) broken away view；
Fig. 8 is Fig. 6 (A-A sections) assembly process figure；
Fig. 9 completes figure for Fig. 6 (A-A sections) assembling；
Figure 10 is Fig. 6 column bracket plate schematic diagram, wherein it is that I-I sections, (C) cut open for II-II that (A), which be cap top view, (B),
Face, (D) are III-III section..
In figure：1- slab column connection nodes, 2- floor prefabricated components, the prefabricated caps of 3-, the prefabricated supporting plates of 4-, 5- steel columns, 6-
Delay-pour joint concrete, 7- span direction plates bottom arrangement of reinforcement, wherein：Against plate bottom arrangement of reinforcement, the 7b- of post center section in 7a- nodes
Against the plate bottom arrangement of reinforcement of part of the building beyond column section in the plate bottom arrangement of reinforcement of post marginal portion, 7c- nodes in building node, 8- across
Direction plate top arrangement of reinforcement is spent, wherein：Match somebody with somebody in 8a- nodes against opposite post marginal portion in the arrangement of reinforcement, 8b- nodes of post center section
Part arrangement of reinforcement in muscle, 8c- nodes beyond column section, 9- anti-shear rings, 10- ribs, 11- caps or supporting plate U-shaped steel
Muscle --- the process shape of the stirrup of node annular framework of steel reinforcement, the stirrup of 11a- nodes annular framework of steel reinforcement, 12- nodes annular
The steel hoop of framework of steel reinforcement, 13- cap additional bars, the additional radial direction stirrup of 14- caps.
L- steel hoop skeleton external diameters, L1- steel hoop skeleton external diameters to cap or supporting plate marginal dimension, D- caps or support
Plate central cavity size, H- floor prefabricated components thickness, b- is steel column corresponding edge width.
Embodiment
Element numbers similar in embodiments of the invention, accompanying drawing, which are described, with reference now to accompanying drawing represents similar element.
Embodiment one
Shown in Fig. 1-5：(Fig. 1 first half and the left half of top arrangement of reinforcement for representing node, lower half and right half of expression section
The bottom arrangement of reinforcement of point)；The plate-column structure node 1 of steel column includes steel column 5, prefabricated cap 3, floor prefabricated components 2 (for overlapping
Floor prefabricated component) and its connection faying face, (rear pouring concrete is required using more prefabricated than connecting for reinforcing bar and delay-pour joint concrete 6
The slightly expanded concrete of the high grade of component strength)；Nodal plane is rectangle, the sideline direction of rectangle and the main shaft of plate-column structure
Direction is identical, and the outer surface of steel column 5 is welded on the i shaped steel i.e. periphery of steel column 5 provided with two road anti-shear rings 9, its middle and upper part it is anti-
Ring 9 is cut for square steel, the outside of steel column 5 (Fig. 5 A) is welded on angle welding and weld all around, the plane of anti-shear ring 9 is "mouth" shape,
The anti-shear ring 9 of bottom is steel plate steel, the outside of steel column 5 (Fig. 5 B) is welded on angle welding and weld all around, the plane of ring is square
Shape, internal punching are consistent with shaped steel column section；Steel column 5 is additionally provided with the framework of steel reinforcement of annular beam type, framework of steel reinforcement above and below
Each four steel hoops 12 and radial direction four hoop stirrup 11a compositions vertical with steel hoop, steel hoop 12 is in stirrup 11a
The framework of steel reinforcement of the cage skeleton annular girder formula formed with stirrup 11a corner and edge colligation.Stirrup 11a is from the prefabricated bottom of cap 3
Portion is to the in-situ layer of floor close to upper surface, and floor bottom muscle of (shown in Fig. 1) the floor prefabricated components 2 in range of nodes is against type
The arrangement of reinforcement 7a and floor top muscle of the center section of steel column 5 anchor into the steel of annular beam type against the arrangement of reinforcement 8a of the center section of steel column 5
The surface of muscles and bones bridge joint plesiotype steel column 5 (should meet anchoring requirement, such as straightway and not enough use end reinforced 90-degree bent, satisfaction has
Close regulation), bottom muscle of the floor prefabricated components 2 in range of nodes is against post marginal portion arrangement of reinforcement 7b and floor top muscle against type
The marginal portion arrangement of reinforcement 8b of steel column 5, which bypasses steel column 5 and anchored into by the both sides of steel column 5 within the corresponding sideline of post, meets anchorage length, building
Part arrangement of reinforcement 7c and gluten of bottom muscle of the plate prefabricated member 2 in range of nodes beyond the section of steel column 5 are beyond column section
Part arrangement of reinforcement 8c anchor within the corresponding sideline of steel column 5 and meet anchorage length；Anchorage length of steel bar presses specification setting.
Shown in Fig. 5, it is the prefabricated cap 3 of the plate-column structure node of steel column 5, is prefabricated into by armored concrete, prefabricated post
The plane of cap 3 is that rectangle, center are square hole, its taken the shape of the letter U equipped with three (being no less than two) steel hoop 12 and shapes two
Reserved steel bar 11 (being the stirrup 11a of the ring skeleton of node 1 after the completion of it), the bottom of reserved steel bar 11 that shape takes the shape of the letter U is pre-buried
In cap concrete, the reserved steel bar 11 of U-shaped protrude upward structure joint face, where the reinforcing bar of the reserved steel bar 11 taken the shape of the letter U
The center that plane is vertical with steel hoop 12 and annular array is arranged, annular array is arranged is the center of circle of steel hoop 12, annular
Reinforcing bar 12 is placed on the corner and edge in the reserved steel bar 11 of U-shaped and colligation.Prefabricated cap 3 is also equipped with additional bar i.e. outside
The cap additional bar 13 of edge and interior empty edge, and prefabricated cap 3 the outer additional radial direction stirrup 14 of four corner caps.It is prefabricated
The prefabrication size of cap 3 meets specification regulation, and it connects plate thickness H more than or equal to b+4 times of post width, and the prefabricated thickness of cap 3 is big
In the thickness H for equal to connecting plate being floor prefabricated components 2；Central cavity dimension D is more than b+100mm and is advisable less than b+200mm,
(i.e. b+200mm >=D >=b+100mm is advisable), the width of prefabricated cap 3 of present case adds cover to reinforcement for L, and (L recommended values are：b
+4xH≥L≥D+2xH)。
Joint construction method：
First be prefabricated in the factory component floor prefabricated components 2 (being laminated floor slab prefabricated components) and prefabricated cap 3, steel column
5 and its anti-shear ring 9, required reinforcing bar is made, be characterised by：Working procedure at the scene is as follows：
(1), support, such as steel column 5 needed for vertical supporting, including the support of prefabricated cap 3 and floor prefabricated components 2 be installed
Deng；
(2) prefabricated cap 3, is inserted on the already installed top of steel column 5, above anti-shear ring 9.
(3), the floor prefabricated components 2 (being laminated floor slab prefabricated components) in hoisting prefabricated 3 one directions of cap, floor is prefabricated
The length end of component 2 and the prefabricated edge butt joint of cap 3, then the floor prefabricated components 2 of other direction are lifted, floor prefabricated components 2 are grown
Spend end also with the prefabricated edge butt joint of cap 3；Pouring concrete pours groove after formation.
(4), assembling reinforcement；The upper reinforcement 8 of first colligation floor prefabricated components 2 (laminated floor slab in-situ layer), then annular
The upper, annular reinforcing bar 12 of skeleton reinforcing steel bar is inserted in the reserved steel bar 11 that prefabricated cap 3 takes the shape of the letter U, the reserved steel bar 11 taken the shape of the letter U
It is bent into closed stirrups 11a, if additional bar also colligation is good；Complete ring skeleton.(it is to complete this step yes shown in Fig. 3
Figure)
(5) delay-pour joint concrete 6, is poured, concrete setting, which reaches, removes vertical supporting after intensity, completes node 1 and apply
Work (being the figure completed shown in Fig. 4).
Case study on implementation two
Shown in Fig. 6-10：(Fig. 6 first half and the left half of top arrangement of reinforcement for representing node, lower half and right half of expression
The bottom arrangement of reinforcement of node)；It (is whole that the plate-column structure node 1 of steel column, which includes steel column 5, prefabricated supporting plate 4, floor prefabricated components 2,
Body thickness precast floor slab) and its connection faying face, reinforcing bar and delay-pour joint concrete 6 constitute；Nodal plane is rectangle, rectangle
Sideline direction is identical with the major axes orientation of plate-column structure, and the outer surface of steel column 5 is welded on square tubular shape provided with one of anti-shear ring 9
The periphery of steel column 5, anti-shear ring 9 is steel plate, be welded on angle welding and weld all around the outside of steel column 5 (Fig. 7 anti-shear ring drawing),
The plane of anti-shear ring 9 is that toroidal, internal holes are that square is consistent with the section of steel column 5；Steel column 5 is additionally provided with annular beam type
Framework of steel reinforcement, framework of steel reinforcement be made up of each three steel hoops 12 up and down and the radial direction stirrup 11a vertical with steel hoop, ring
The framework of steel reinforcement for the cage skeleton annular girder formula that shape reinforcing bar 12 is formed in stirrup 11a with stirrup 11a corner and edge colligation.Hoop
In-situ layers of the muscle 11a from the prefabricated bottom of supporting plate 4 to floor is close to upper surface, and (shown in Fig. 6) floor prefabricated components 2 are in range of nodes
Interior floor bottom muscle against the center section of steel column 5 arrangement of reinforcement 7a and floor top muscle against the center section of steel column 5 arrangement of reinforcement
The framework of steel reinforcement 4 that 8a anchors into annular beam type (should meet anchoring requirement, such as straightway and not enough use steel close to the surface of steel column 5
Muscle end 90-degree bent, meets pertinent regulations), bottom muscle of the floor prefabricated components 2 in range of nodes is against post marginal portion arrangement of reinforcement
7b and floor top muscle bypass post and anchored within the corresponding sideline of post to meet to anchor by post both sides against post marginal portion arrangement of reinforcement 8b to be grown
Degree, bottom muscle of the floor prefabricated components 2 in range of nodes are in the part arrangement of reinforcement 7c and gluten beyond column section beyond column section
Part arrangement of reinforcement 8c anchor within the corresponding sideline of post and meet anchorage length.
The anti-shear ring 9 of present case is welded on the lowest positions of prefabricated supporting plate 4 using steel plate, and the outside dimension of anti-shear ring 9 is D+
50mm (is more than the empty D that the prefabricated center of supporting plate 4 is reserved).Its benefit is prefabricated board 4 can be assemblied in without support and template
The required position of node；Deep floor 10 is welded with anti-shear ring 9, one side and type are welded in the one side of deep floor 10 with anti-shear ring 9
Steel column 5 is welded.Its advantage is increase shearing resistance ring stiffness, improves shear-carrying capacity；The top of the framework of steel reinforcement of annular beam type is minimum
Its diameter of the steel hoop 12 of diameter is less than shearing resistance anti-shear ring overall diameter, and stirrup 11a also slopes inwardly.
The quarter bend steel column of present case can become square tube concrete column by fill concrete in rectangular steel pipe.
Shown in Figure 10, it is the prefabricated supporting plate 4 of the plate-column structure node of steel column 5, is prefabricated into by armored concrete, prefabricated support
The plane of plate 4 is that rectangle, center are circular holes, its taken the shape of the letter U equipped with three (being no less than two) steel hoop 12 and shapes two
Reserved steel bar 11 (being the stirrup 11a of the ring skeleton of node 1 after the completion of it), the bottom of reserved steel bar 11 that shape takes the shape of the letter U is pre-buried
In cap concrete, the reserved steel bar 11 of U-shaped protrude upward structure joint face, where the reinforcing bar of the reserved steel bar 11 taken the shape of the letter U
The center of circle that plane is arranged with the vertical ring-shaped array of steel hoop 12, the center of annular array arrangement is steel hoop 12, three annulars
Corner and center edge and colligation that reinforcing bar 12 (diameter of ring is differed) is placed in the reserved steel bar 11 of U-shaped.It is prefabricated
Supporting plate 4 is also equipped with the cap additional bar 13 at additional bar i.e. outward flange and interior empty edge, and the prefabrication size of prefabricated supporting plate 4 is expired
Sufficient specification regulation, its width be more than or equal to thickness H that b+4 times of connecting plate of post width is floor prefabricated components 2 (i.e. supporting plate width >=
B+4XH), the width of prefabricated supporting plate 4 of present case is L+L1, (L recommended values are b+4xH >=L >=D+2xH, and L1 takes the 50-100mm to be
Preferably), specification provides that the prefabricated thickness of supporting plate 4 is more than or equal to connection plate thickness H/4 (present case takes H/2)；Central cavity dimension D is more than
B+100mm and it is advisable less than b+200mm, (i.e. b+200mm >=D >=b+100mm is advisable).
Joint construction method：As shown in Figure 6
First be prefabricated in the factory component floor prefabricated component 2 (the whole thick prefabricated product of floor) and prefabricated supporting plate 4, steel column 5 and
Its anti-shear ring 9, required reinforcing bar is made, be characterised by：Working procedure at the scene is as follows：
The 1st, support, such as steel column 5 needed for vertical supporting, including the support of prefabricated supporting plate 4 and floor prefabricated components 2 be installed
Deng；
2nd, prefabricated supporting plate 4 is inserted on the already installed top of steel column 5, above anti-shear ring 9 (shown in Fig. 7).
3rd, the floor prefabricated components 2 in a direction are lifted, the length end of floor prefabricated components 2 overlaps with prefabricated supporting plate 4, first hung
The upper reinforcement 8 of the floor prefabricated components 2 of dress should be bent up upwards (to be used to evade other direction precast floor slab bottom concrete steel muscle 7 just
Position), then the floor prefabricated components 2 of other direction are lifted, the length end of floor prefabricated components 2 is also overlapped with prefabricated supporting plate 4；After formation
Pouring concrete pours groove (shown in Fig. 8).
4th, assembling reinforcement；Original bent-up bar 8 in place first, the upper, annular reinforcing bar 12 of ring skeleton reinforcing bar is inserted in prefabricated
In the reserved steel bar 11 taken the shape of the letter U of supporting plate 4, the reserved steel bar 11 taken the shape of the letter U is bent into closed stirrups 11a, if additional steel
Also colligation is good for muscle；Complete ring skeleton (shown in Fig. 9).
5th, delay-pour joint concrete 6 is poured, concrete setting, which reaches, removes vertical supporting after intensity, completes node 1 and construct
(shown in Fig. 9).
Above-mentioned is preferably embodiment, but embodiments of the present invention are not limited to the limit of the above of the invention
System, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (7)
1. a kind of plate-column structure node of steel column, it is characterised in that including：Steel column, prefabricated cap or supporting plate, floor are prefabricated
Component and its connection faying face, reinforcing bar and delay-pour joint concrete；Specially described nodal plane is rectangle, the sideline side of rectangle
To identical with the major axes orientation of plate-column structure, shaped steel outer surface of column is welded on steel column periphery, type provided with least one anti-shear ring
Steel column be additionally provided with the framework of steel reinforcement of annular beam type, annular beam type framework of steel reinforcement its by no less than four steel hoops and with annular
The vertical radial arrangement stirrup composition of reinforcing bar, the ring beam type that steel hoop is formed in stirrup with the corner of stirrup and edge colligation
Steel reinforcement cage, the stirrup of the framework of steel reinforcement of annular beam type are from close to prefabricated cap or supporting plate bottom to the in-situ layer of floor close to upper table
Face；Floor prefabricated components anchor into annular beam type in range of nodes against the plate bottom arrangement of reinforcement and top arrangement of reinforcement of steel column center section
Framework of steel reinforcement close to steel column surface, floor prefabricated components in range of nodes against steel column marginal portion bottom muscle and on
Portion's arrangement of reinforcement anchors into the framework of steel reinforcement of annular beam type and anchored into close to steel column surface or bypass on the outside of steel column side by steel column both sides
The plate bottom arrangement of reinforcement of the floor prefabricated components of part within the corresponding sideline of steel column, in range of nodes beyond shaped steel column section and
Top arrangement of reinforcement is anchored within the corresponding sideline of steel column.
2. the plate-column structure node of steel column as claimed in claim 1, it is characterised in that：The anti-shear ring is welded using steel plate
In the lowest positions of cap or supporting plate, size is more than the reserved cavity of prefabricated cap or supporting plate center.
3. the plate-column structure node of steel column as claimed in claim 1, it is characterised in that：Reinforcement is welded with the anti-shear ring
Floor, deep floor with anti-shear ring while weld while being welded with steel column.
4. the plate-column structure node of steel column as claimed in claim 1, it is characterised in that：The framework of steel reinforcement of the annular beam type
The steel hoop of top minimum diameter its diameter be less than shearing resistance ring diameter.
5. the prefabricated cap or supporting plate of a kind of plate-column structure node of steel column, it is prefabricated into by armored concrete, is characterised by：
Prefabricated cap or supporting plate plane is that rectangle, center are hole, and it is furnished with no less than two steel hoops and taken the shape of the letter U equipped with shape
Reserved steel bar, the reserved steel bar bottom that shape takes the shape of the letter U is embedded in prefabricated cap or supporting plate concrete, the reserved steel bar of U-shaped
Structure joint face is protruded upward, plane where the reinforcing bar of the reserved steel bar taken the shape of the letter U is vertical with steel hoop and is annular array cloth
Put, annular array arrangement center be steel hoop the center of circle, match somebody with somebody the corner that steel hoop is placed in the reserved steel bar of U-shaped
With edge and colligation.
6. the prefabricated cap or supporting plate of the plate-column structure node of steel column as claimed in claim 5, it is characterised in that：It is described pre-
Cap or supporting plate plane processed is rectangle, and its plane outside dimension is more than steel hoop maximum gauge.
7. a kind of construction method of the plate-column structure node of steel column, be first prefabricated in the factory floor prefabricated components, steel column and
Its anti-shear ring, prefabricated cap or supporting plate, make required reinforcing bar, are characterised by：Working procedure at the scene is as follows：
(1), support, floor floor member needed for vertical supporting, including the support of cap or supporting plate and precast floor unit be installed
For whole thick floor prefabricated components or laminated floor slab prefabricated components；
(2), be inserted in cap or supporting plate on already installed vertical supporting top, install it is accurate in place with meet level requirements.
(3), the floor prefabricated components in one direction of lifting cap or supporting plate, floor prefabricated components length end and cap or supporting plate pair
Connect or overlap, the upper reinforcement of the floor prefabricated components first lifted is bent up upwards, then lift the floor prefabricated components of other direction,
Also dock or overlap with cap or supporting plate in another floor prefabricated components length end；Pouring concrete pours groove after formation.
(4), assembling reinforcement；It is first that the upper reinforcement of the whole thick floor prefabricated components originally bent up is in place or prefabricated in laminated floor slab
Colligation floor upper reinforcement is completed on the overlapping layers of component, and also colligation is good for additional bar, then the top loop of ring skeleton reinforcing bar
Shape reinforcing bar is inserted in the reserved steel bar taken the shape of the letter U of prefabricated cap or supporting plate, and the reserved steel bar taken the shape of the letter U is bent into closed stirrups,
Complete ring skeleton.
(5) delay-pour joint concrete, is poured, concrete setting, which reaches, removes vertical supporting after intensity, completes node construction.
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| CN201710761163.5A CN107327030A (en) | 2017-08-30 | 2017-08-30 | The plate-column structure node and its cap prefabricated components and construction method of a kind of steel column |
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| CN201710761163.5A CN107327030A (en) | 2017-08-30 | 2017-08-30 | The plate-column structure node and its cap prefabricated components and construction method of a kind of steel column |
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| CN107327030A true CN107327030A (en) | 2017-11-07 |
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| CN108360690A (en) * | 2018-04-27 | 2018-08-03 | 中铁建工集团有限公司 | Bolumn cap is coupled reinforced contignation |
| CN108589910A (en) * | 2018-06-25 | 2018-09-28 | 浙江大学 | A kind of steel-concrete composite slab rod structure |
| CN109162406A (en) * | 2018-09-29 | 2019-01-08 | 杨大刚 | A kind of assembled bolumn cap |
| CN112267571A (en) * | 2020-11-11 | 2021-01-26 | 吉林建筑科技学院 | Prefabricated section steel concrete column and profiled steel sheet composite board connecting joint and construction method |
| CN112267570A (en) * | 2020-11-11 | 2021-01-26 | 吉林建筑科技学院 | Prefabricated section steel concrete column and sandwich concrete composite plate node and construction method |
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| CN112796451B (en) * | 2020-12-31 | 2022-09-02 | 上海建工五建集团有限公司 | Combined construction method of special-shaped steel beam structure and PC (polycarbonate) composite slab |
| CN117328564A (en) * | 2023-10-24 | 2024-01-02 | 中信建筑设计研究总院有限公司 | Connecting node of reinforced concrete column cap and steel tube concrete column and construction method |
| CN117569448A (en) * | 2024-01-17 | 2024-02-20 | 广东省建科建筑设计院有限公司 | Beam-column joint applicable to formwork-free system of multi-high-rise factory building and construction method |
| CN117569448B (en) * | 2024-01-17 | 2024-03-29 | 广东省建科建筑设计院有限公司 | Beam-column joint applicable to formwork-free system of multi-high-rise factory building and construction method |
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