CN109339229A - A kind of perforation slurry prefabricated assembled concrete-filled steel tubular frame structure of anchor - Google Patents

A kind of perforation slurry prefabricated assembled concrete-filled steel tubular frame structure of anchor Download PDF

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Publication number
CN109339229A
CN109339229A CN201811228824.9A CN201811228824A CN109339229A CN 109339229 A CN109339229 A CN 109339229A CN 201811228824 A CN201811228824 A CN 201811228824A CN 109339229 A CN109339229 A CN 109339229A
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China
Prior art keywords
steel
concrete
anchor
plate
reinforcing bar
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Granted
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CN201811228824.9A
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CN109339229B (en
Inventor
金仁才
正清
刘体锋
柳荣芳
吴二军
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China MCC17 Group Co Ltd
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China MCC17 Group Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E04B1/21Connections specially adapted therefor

Abstract

The invention discloses a kind of perforation to starch the prefabricated assembled concrete-filled steel tubular frame structure of anchor, including pouring node, column-column bolt connection node, precast slab and rear pouring concrete after unit in Concrete-Filled Square Steel Tube lower prop, Concrete-Filled Square Steel Tube upper prop, the steel case concrete combination beam of half opening formula, prefabricated plate angle unit, prefabricated edges of boards unit, prefabricated board and column-beam.The present invention connects Concrete-Filled Square Steel Tube lower prop, Concrete-Filled Square Steel Tube upper prop, the steel case concrete combination beam of half opening formula, precast slab integral by way of starching anchor, the amount of pouring is few, assembly rate is high, each component is prefabricated assembled, on-site consolidation, speed of application is fast, simplifies working procedure, optimizes construction environment;Secondly, slurry anchor is low for construction precision requirement, it is convenient for worker operation, beam column component is composite structure form, and from heavy and light, stress is more reasonable, can give full play to material property, bearing capacity is high, and fire resistance is good, and shock resistance is good.

Description

A kind of perforation slurry prefabricated assembled concrete-filled steel tubular frame structure of anchor
Technical field
The present invention relates to assembled arthitecutral structure technical field, the prefabricated assembled steel tube concrete of anchor is starched in specially a kind of perforation Native frame structure.
Background technique
Since 12, China greatly develops fabricated construction, makes every effort to reduce site operation project amount, improves dwelling construction Quality reduces construction cost, realizes the industrialization and intensivization development of dwelling construction.Steel tube-concrete composite structure system, phase Than having steel construction concurrently and applying in the reinforced concrete structure system and lightweight steel construction system that are widely used in housing industry at this stage The advantages of work speed is fastly and concrete structure rigidity is big, low cost, and bearing capacity is high, moulding and good toughness, makes and construction party Just, the advantages that fire resistance is good, it is with good economic efficiency.
Existing concrete-filled steel tubular frame structure, in order to realize higher assembly rate, Vierendeel girder mostly uses greatly fashioned iron, with steel pipe Concrete is by weld seam or is bolted.The former increases site welding workload, and the latter is for node installation required precision Higher, installation is extremely inconvenient.In addition, this frame structure is using after section steel beam, board member can only generally use cast-in-place combination building Plate, this will substantially reduce assembly rate.If being intended to using precast concrete beam need that big ruler is arranged at Concrete-filled tubular connections Very little ring beam platform, and a large amount of stirrups are configured in ring beam, it constructs sufficiently complex.
In addition, it is thus proposed that the frame of concrete-filled steel square tubular column and outsourcing U-shaped steel-concrete composite beam connecting node form Structure, the frame structure of this form, the concrete in combination beam need cast-in-place, reduce assembly rate, the scene of increasing is applied Work workload.In addition, partition is arranged at bean column node, globality can be reduced, welding capacity is big, it cannot be guaranteed that welding quality, construction It is extremely inconvenient.
Summary of the invention
The purpose of the present invention is to provide a kind of perforation to starch the prefabricated assembled concrete-filled steel tubular frame structure of anchor, and simplification is applied Work enhances the globality of prefabricated construction, optimizes the stress of beam column component and node, reduces the construction operation of building-site Amount realizes the higher assembly rate of concrete filled steel tube and highly efficient prefabricated construction, mentioned above in the background art to solve Problem.
To achieve the above object, the invention provides the following technical scheme:
A kind of perforation slurry prefabricated assembled concrete-filled steel tubular frame structure of anchor, including Concrete-Filled Square Steel Tube lower prop, square steel tube Concrete upper prop, the steel case concrete combination beam of half opening formula, prefabricated plate angle unit, prefabricated edges of boards unit, unit in prefabricated board, And node, column-column bolt connection node, precast slab and rear pouring concrete are poured after column-beam.
Further, the steel case concrete combination beam, precast slab, Concrete-Filled Square Steel Tube lower prop and square steel tube are mixed Solidifying soil upper prop is prefabricated components, and column-girder connection uses rear pouring concrete slurry anchor connection, and rear pouring concrete strength grade is not low In C35;The Concrete-Filled Square Steel Tube lower prop and Concrete-Filled Square Steel Tube upper prop are fixed when pouring column inner concrete by reinforced hole There is lower anchor overlap joint reinforcing bar in column internal upper part anchoring overlap joint reinforcing bar and column;It is fixed on beam in the steel case concrete combination beam Portion's anchoring overlap joint reinforcing bar and beam lower anchor overlap reinforcing bar, and beam upper anchorage overlaps reinforcing bar and beam lower anchor overlap joint reinforcing bar difference Lower anchor overlap joint reinforcing bar corresponding overlap joint, reinforcing bar in slurry anchor connection U-lag in overlap joint reinforcing bar and column is anchored with column internal upper part The trade mark is not less than HRB400, when overlap joint end reinforced setting 90o crotch, and the lap of splice is set according to the relevant technologies regulation; Plate upper anchorage reinforcing bar and plate lower anchor reinforcing bar, plate upper anchorage reinforcing bar and plate lower part are provided in the precast slab Anchor bar overlaps on beam upper anchorage overlap joint reinforcing bar, and pours after passing through together with the reinforcing bar in steel case concrete combination beam mixed Solidifying soil pours integral.
Further, the Concrete-Filled Square Steel Tube lower prop and Concrete-Filled Square Steel Tube upper prop use square column form, steel pipe thickness Be not preferably less than 3mm, steel pipe inner concrete grade is not less than C35, weld the steel sleeve of nested encryptions on tube wall, and with steel sleeve it Between form weld seam, the sleeve thickness of steel sleeve is not less than thickness of steel pipe, and weld seam uses E50 type welding rod, the same column of the width of weld seam Wall thickness, column steel pipe walls stretch out flooring 300-500mm, mixed in lower layer's square steel tube for overlapping with upper layer Concrete-Filled Square Steel Tube upper prop The concrete top poured in advance in solidifying soil lower prop pours into certain thickness cement slurry bed course;The Concrete-Filled Square Steel Tube lower prop and Concrete-Filled Square Steel Tube upper prop docks bolt hole pressure grouting by high-strength frictional property bolt A connection, and from upper lower prop, selects high-strength Grouting material tamps lower prop overlapped hollow part.
Further, the Concrete-Filled Square Steel Tube lower prop and the post jamb of Concrete-Filled Square Steel Tube upper prop and outer nested steel sleeve Upper corresponding reserved steel bar through hole, aperture are not preferably less than 25mm, are no more than 30mm, and spacing is not less than 25mm, hole location setting between hole Depending on the overlap joint reinforcing bar welded on steel case concrete combination beam, reserved up and down in post jamb with corresponding on outer nested steel sleeve Column docks bolt hole, and upper lower prop docking bolt hole is greater than reinforcing bar through hole, is used for pressure grouting, after the completion of grouting, installs bolt When upper lower prop docking bolt hole on add gasket, also set up resistant slide pit, antiskid on post jamb and outer nested steel sleeve The diameter for moving pit is determined according to column dimension, is played pit area and is no more than with the 20% of region steel plate rectangular area.
Further, the outer nested steel sleeve of the slurry anchor connection U-lag and column first passes through fillet weld and connect, then with high-strength Frictional property bolt B and column anchor together, and slurry anchor connection U-lag can be formed by steel plate punched, or be welded by steel plate, The length of slurry anchor connection U-lag is 500-800mm, and steel plate thickness used is not less than 3mm, and the steel plate that both ends are stretched out is for shelving Precast slab, extension elongation are not less than 50mm, stretch out and ribbed stiffener is arranged below steel plate, and the corresponding position midpoint in slot Weld lateral drawknot anchor bolt;Transverse spot ribbed stiffener transverse direction steel tie, puts more energy at slurry anchor connection U-lag height two-third point The tie bar diameter of rib transverse direction steel tie uses 8-12mm, and length is not less than HRB335 with U-lag inner width, strength grade; Angle steel bracket, angle are set below slurry anchor connection U-lag and Concrete-Filled Square Steel Tube lower prop and Concrete-Filled Square Steel Tube upper prop junction For the length of steel corbel with U-lag width, the angle steel trade mark is not less than Q345, and angle steel bracket first passes through fillet weld seam in nested outside column Steel sleeve on, recycle high-strength frictional property bolt B and column to anchor together, on the end steel plate of the slurry anchor connection U-lag, In post jamb corresponding position prepared screw-bolt hole and anchor bar hole.
Further, U-lag can be welded or steel plate punched by steel plate below the beam of the steel case concrete combination beam It forms, steel plate thickness 1mm thinner than slurry anchor connection U-lag in two sides is provided with level in the middle part of steel case concrete combination beam Partition, horizontal baffle are connected to midpoint on side plate with one-side-filled angle weld and two sides steel plate with a thickness of 2-3mm, pour as after The template of concrete stretches out one section of steel plate, with slurry anchor connection U at the top of the U-lag of the steel case concrete combination beam of half opening formula Shape slot stretch out steel plate edge it is concordant, the steel plate trade mark used in steel case concrete combination beam be not less than Q345, and with slurry anchor connection U-shaped The slot lap of splice is the 1/4-1/3 for connecting U-lag length, and in slurry anchor connection U-lag end angular solder design, in steel case coagulation The end of native combination beam, middle part horizontal baffle the angularly disposed end socket steel plate in lower section, end socket steel plate thickness is not less than 3mm, with week Enclose steel plate weld all around, end socket steel plate is welded in beam upper side panel according to the beam lower part position Zong Jin reserved steel bar holeHoop in ellbeam Muscle, the beam upper anchorage overlap joint reinforcing bar bind or are welded in beam on stirrup, and beam lower anchor overlaps reinforcement welding under beam On portion's inner surface of steel plate, and end socket steel plate is passed through, beam lower anchor overlaps reinforcing bar length and is not less than 1/3 girder span.
Further, it is provided in the beam in stirrup and on slurry anchor connection U-lagStirrup in shape slot, stirrup in slot Diameter 6-8mm, grade are not less than HRB335, and stirrup height is that lower anchor overlaps on reinforcing bar to precast slab in column in slot 135 degree of crotches are arranged in distance between the plate upper anchorage reinforcing bar in portion, plate upper anchorage reinforcing bar lower part, and hook length is wanted according to anchoring Ask setting, the stirrup in slurry anchor connection U-lag and lateral drawknot anchor bolt are bound, in slot in stirrup and beam stirrup preferably with plate top anchor Gu reinforcing bar, plate lower anchor reinforcing bar, lateral drawknot anchor bolt and ribbed stiffener transverse direction steel tie are staggered.
Further, the precast slab plate thickness is taken as 90-120mm, and plate uses squared region lattice prefabricated unit, in plate Arranging plate upper anchorage reinforcing bar and plate lower anchor reinforcing bar stretch out plate section in beam, and plate upper anchorage reinforcing bar extension elongation is mixed for steel case Deck-siding is closed by solidifying local soil type, and plate lower anchor reinforcing bar extension elongation is plate protective layer thickness, and anchor bar length is according to phase between plate and plate It closes specification to be designed, and is attached by rear pouring concrete.
Further, pass through board-to-board respectively between unit in the prefabricated plate angle unit, prefabricated edges of boards unit and prefabricated board Upper anchorage reinforcing bar is connected with board-to-board lower anchor reinforcing bar, the unit in prefabricated plate angle unit, prefabricated edges of boards unit and prefabricated board Inside be respectively arranged with vertical direction plate upper reinforcement and vertical direction plate lower rebar, prefabricated plate angle unit and prefabricated edges of boards During installation, one end can be shelved on the steel plate that slurry anchor connection U-lag or steel case concrete combination beam stretch out unit in advance, then be led to Later pouring concrete builds up entirety with overlap joint bar pouring in beam, and precast slab need to set up template and scaffold is applied Work.
Compared with prior art, the beneficial effects of the present invention are:
1, the prefabricated assembled concrete-filled steel tubular frame structure of anchor is starched in a kind of perforation provided by the invention, by Concrete-Filled Square Steel Tube Lower prop, Concrete-Filled Square Steel Tube upper prop, the steel case concrete combination beam of half opening formula, precast slab are connected by way of starching anchor Be connected into entirety, the amount of pouring is few, and assembly rate is high, each component be it is prefabricated assembled, on-site consolidation, speed of application is fast, simplifies and applies Work process, optimizes construction environment.
2, the prefabricated assembled concrete-filled steel tubular frame structure of anchor is starched in a kind of perforation provided by the invention, and slurry anchor is for construction essence Degree require it is low, be convenient for worker operation, beam column component be composite structure form, from heavy and light, stress is more reasonable, can give full play to material Expect performance, bearing capacity is high, and fire resistance is good, and shock resistance is good.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention;
Fig. 2 is the A-A cross-section diagram of Fig. 1 of the present invention;
Fig. 3 is the B-B cross-section diagram of Fig. 1 of the present invention;
Fig. 4 is the C-C cross-section diagram of Fig. 1 of the present invention;
Fig. 5 is precast column unit figure of the invention;
Fig. 6 is precast beam unit figure of the invention;
Fig. 7 is prefabricated component figure of the invention;
Fig. 8 is prefabricated board layout drawing of the invention;
Fig. 9 is the D-D cross-section diagram of Fig. 8 of the present invention;
Figure 10 is prefabricated board plate anchor rib form figure of the invention;
Figure 11 is bolt layout drawing on column of the invention.
In figure: 1- Concrete-Filled Square Steel Tube lower prop;2- steel sleeve;3- Concrete-Filled Square Steel Tube upper prop;4- resistant slide pit;5- column Interior filling concrete in advance;6- high-strength grout;7- weld seam;The high-strength frictional property bolt A of 8-;9- cement slurry bed course;On in 10- column Portion's anchoring overlap joint reinforcing bar;Lower anchor overlaps reinforcing bar in 11- column;12- angle steel bracket;13- slurry anchor connection U-lag;14- is laterally drawn Tie anchor bolt;15- ribbed stiffener transverse direction steel tie;Stirrup in 16- slot;The high-strength frictional property bolt B of 17-;Pouring concrete after 18-;19- Steel box-concrete beam;20- horizontal baffle;21- end socket steel plate;22- beam upper anchorage overlaps reinforcing bar;23- beam lower anchor Overlap reinforcing bar;Stirrup in 24- beam;25- precast slab;26- plate upper anchorage reinforcing bar;27- plate lower anchor reinforcing bar;28- Ribbed stiffener;The upper lower prop of 29- docks bolt hole;The prefabricated plate angle unit of 30-;The prefabricated edges of boards unit of 31-;Unit in 32- prefabricated board; 33- board-to-board upper anchorage reinforcing bar;34- board-to-board lower anchor reinforcing bar;35- vertical direction plate upper reinforcement;36- vertical direction plate Lower rebar.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Please referring to Fig. 1-11, in the embodiment of the present invention: the prefabricated assembled concrete-filled steel tubular frame structure of anchor is starched in a kind of perforation, Including Concrete-Filled Square Steel Tube lower prop 1, Concrete-Filled Square Steel Tube upper prop 3, the steel case concrete combination beam 19 of half opening formula, prefabricated plate angle Unit 30, prefabricated edges of boards unit 31 pour node, column-column bolt connection node in prefabricated board, are prefabricated after unit 32 and column-beam Concrete slab 25 and rear pouring concrete 18.
In the above-described embodiments, steel case concrete combination beam 19, precast slab 25,1 and of Concrete-Filled Square Steel Tube lower prop Concrete-Filled Square Steel Tube upper prop 3 is prefabricated components, and column-girder connection uses rear 18 slurry anchor connection of pouring concrete, rear pouring concrete 18 strength grades are not less than C35;Concrete-Filled Square Steel Tube lower prop 1 and Concrete-Filled Square Steel Tube upper prop 3 lead to when pouring column inner concrete It crosses reinforced hole and is fixed with lower anchor overlap joint reinforcing bar 11 in column internal upper part anchoring overlap joint reinforcing bar 10 and column;Steel case concrete combination beam Beam upper anchorage overlap joint reinforcing bar 22 and beam lower anchor overlap joint reinforcing bar 23 are fixed in 19, beam upper anchorage overlaps reinforcing bar 22 and beam Lower anchor overlaps reinforcing bar 23 respectively with lower anchor overlap joint reinforcing bar 11 in column internal upper part anchoring overlap joint reinforcing bar 10 and column in slurry anchor Connect corresponding overlap joint in U-lag 13, the reinforcing bar trade mark is not less than HRB400, when overlap joint end reinforced setting 90o crotch, and press Photograph closes technical regulation and the lap of splice is arranged;Plate upper anchorage reinforcing bar 26 and plate lower anchor are provided in precast slab 25 Reinforcing bar 27, plate upper anchorage reinforcing bar 26 and plate lower anchor reinforcing bar 27 overlap on beam upper anchorage overlap joint reinforcing bar 22, and and steel Reinforcing bar in case concrete combination beam 19 pass through together rear pouring concrete 18 pour it is integral;It is held with armored concrete at node Spreader beam end moment of flexure is connected instead of the iris type of conventional steel concrete beam and column node, and this mode open cell content is few, cuts to steel pipe Weak few, while avoiding at node iris type and connecting, concrete filled steel tube disconnects construction and influences the globality of column and partition is applied Complicated technology caused by work and high welding capacity improve assembly speed of application, in addition, the reinforcement steel plate of steel core concrete column external welding Also loss of the steel pipe walls aperture to styletable bearing capacity is compensated for.
In the above-described embodiments, Concrete-Filled Square Steel Tube lower prop 1 and Concrete-Filled Square Steel Tube upper prop 3 use square column form, steel pipe Thickness is not preferably less than 3mm, and steel pipe inner concrete grade is not less than C35, and the steel sleeve 2 of nested encryptions, and and steel are welded on tube wall Weld seam 7 is formed between casing 2, the sleeve thickness of steel sleeve 2 is not less than thickness of steel pipe, and weld seam 7 uses E50 type welding rod, weld seam 7 Width with post jamb thickness, column steel pipe walls stretch out flooring 300-500mm, for upper layer Concrete-Filled Square Steel Tube upper prop 3 overlap, under The concrete top poured in advance in layer Concrete-Filled Square Steel Tube lower prop 1 pours into certain thickness cement slurry bed course 9;The square steel tube Concrete lower prop 1 is connected with Concrete-Filled Square Steel Tube upper prop 3 by high-strength frictional property bolt A8, and docks bolt hole 29 from upper lower prop Pressure grouting, select high-strength grout 6 to tamp lower prop overlapped hollow part.
In the above-described embodiments, Concrete-Filled Square Steel Tube lower prop 1 and the post jamb of Concrete-Filled Square Steel Tube upper prop 3 and outer nested steel Reserved steel bar through hole is corresponded on casing 2, aperture is not preferably less than 25mm, is no more than 30mm, spacing is not less than 25mm, hole location between hole It is arranged depending on the overlap joint reinforcing bar welded on steel case concrete combination beam 19, it is corresponding on outer nested steel sleeve 2 in post jamb Reserved upper lower prop docks bolt hole 29, and upper lower prop docking bolt hole 29 is greater than reinforcing bar through hole, is used for pressure grouting, and grouting is completed Afterwards, gasket is added on upper lower prop docking bolt hole 29 when bolt is installed, is also set up on post jamb and outer nested steel sleeve 2 anti- Pit 4 is slid, the diameter of resistant slide pit 4 is determined according to column dimension, is played pit area and is no more than with region steel plate rectangular area 20%.
In the above-described embodiments, slurry anchor connection U-lag 13 first passes through fillet weld with the outer nested steel sleeve 2 of column and connect, then It is anchored together with high-strength frictional property bolt B 17 with column, slurry anchor connection U-lag 13 can be formed by steel plate punched, or pass through steel Plate is welded, and the length of slurry anchor connection U-lag 13 is 500-800mm, and steel plate thickness used is not less than 3mm, and both ends are stretched out Steel plate for shelving precast slab 25, extension elongation is not less than 50mm, stretch out and ribbed stiffener 28 be set below steel plate, and Corresponding position midpoint welds lateral drawknot anchor bolt 14 in slot;The transverse spot at 13 height two-third point of slurry anchor connection U-lag The tie bar diameter of ribbed stiffener transverse direction steel tie 15, ribbed stiffener transverse direction steel tie 15 uses 8-12mm, the same U-lag of length Inner width, strength grade are not less than HRB335;In slurry anchor connection U-lag 13 and Concrete-Filled Square Steel Tube lower prop 1 and Concrete-Filled Square Steel Tube Angle steel bracket 12 is set below 3 junction of upper prop, and for bearing the shearing of construction and service stage, the length of angle steel bracket 12 is same U-lag width, the angle steel trade mark are not less than Q345, and angle steel bracket 12 first passes through fillet weld seam on steel sleeve 2 nested outside column, High-strength frictional property bolt B 17 is recycled together, on the end steel plate of slurry anchor connection U-lag 13, to correspond in post jamb with column anchoring Position prepared screw-bolt hole and anchor bar hole, slurry anchor connection U-lag 13 can guarantee beam according to the beam slab shelved thereon from recanalization Effectively shelving for plate, reduces pressure distortion to the greatest extent.
In the above-described embodiments, U-lag can be welded or steel plate by steel plate below the beam of steel case concrete combination beam 19 It is stamped to form, two sides steel plate thickness is set than the thinner 1mm of slurry anchor connection U-lag 13 at the middle part of steel case concrete combination beam 19 It is equipped with horizontal baffle 20, horizontal baffle 20 is connected to midpoint on side plate with one-side-filled angle weld and two sides steel plate with a thickness of 2-3mm One section of steel stretches out as the template of rear pouring concrete 18 at the top of the U-lag of the steel case concrete combination beam 19 of half opening formula in place Plate, concordant with the stretching steel plate edge of slurry anchor connection U-lag 13, the steel plate trade mark used in steel case concrete combination beam 19 is not less than Q345, and be the 1/4-1/3 for connecting U-lag length with 13 lap of splice of slurry anchor connection U-lag, and in slurry anchor connection U-lag 13 End angular solder design, in the end of steel case concrete combination beam 19, the angularly disposed end socket steel in lower section of middle part horizontal baffle 20 Plate 21,21 thickness of end socket steel plate are not less than 3mm, and with steel plate weld all around around, end socket steel plate 21 is reserved according to the beam lower part position Zong Jin Reinforced hole welds in beam upper side panelStirrup 24 in ellbeam, beam upper anchorage overlap joint reinforcing bar 22 bind or are welded in beam On stirrup 24, beam lower anchor overlap joint reinforcing bar 23 is welded on beam lower steel plate inner surface, and passes through end socket steel plate 21, beam lower part Anchoring overlap joint 23 length of reinforcing bar is not less than 1/3 girder span.
In the above-described embodiments, it is provided in beam in stirrup 24 and on slurry anchor connection U-lag 13Stirrup in shape slot 16,16 diameter 6-8mm of stirrup in slot, grade are not less than HRB335, and 16 height of stirrup is that lower anchor overlaps reinforcing bar in column in slot 11 to distance between the plate upper anchorage reinforcing bar 26 on 25 top of precast slab, and 26 lower part of plate upper anchorage reinforcing bar is arranged 135 Crotch is spent, hook length requires setting according to anchoring, and the stirrup and lateral drawknot anchor bolt 14 in slurry anchor connection U-lag 13 are bound, In slot in stirrup 16 and beam stirrup 24 preferably with plate upper anchorage reinforcing bar 26, plate lower anchor reinforcing bar 27, lateral drawknot anchor bolt 14 and Ribbed stiffener transverse direction steel tie 15 is staggered.
In the above-described embodiments, 25 plate thickness of precast slab is taken as 90-120mm, and plate uses squared region lattice prefabricated unit, Arranging plate upper anchorage reinforcing bar 26 and plate lower anchor reinforcing bar 27 stretch out plate section in plate central sill, and plate upper anchorage reinforcing bar 26 stretches out length Degree is that steel case concrete combination beam 19 is wide, and 27 extension elongation of plate lower anchor reinforcing bar is plate protective layer thickness, is anchored between plate and plate Reinforcing bar length is designed according to related specifications, and is attached by rear pouring concrete 18.
In the above-described embodiments, distinguish between unit 32 in prefabricated plate angle unit 30, prefabricated edges of boards unit 31 and prefabricated board It is connected by board-to-board upper anchorage reinforcing bar 33 and board-to-board lower anchor reinforcing bar 34, in prefabricated plate angle unit 30, prefabricated edges of boards list The inside of unit 32 is respectively arranged with vertical direction plate upper reinforcement 35 and vertical direction plate lower rebar in member 31 and prefabricated board 36, during installation, one end can be shelved on slurry anchor connection U-lag 13 or steel in advance for prefabricated plate angle unit 30 and prefabricated edges of boards unit 31 On the steel plate that case concrete combination beam 19 stretches out, then by rear pouring concrete 18 with overlap bar pouring in beam and build up entirety, it is pre- Concrete slab 25 processed need to set up template and scaffold is constructed.
As can be seen from the above embodiments, the present invention is using Concrete-Filled Square Steel Tube lower prop 1, Concrete-Filled Square Steel Tube upper prop 3 and half-open The steel case concrete combination beam 19 of mouth formula, beam column element bearing capacity is high, and rigidity is big, can give full play to material mechanical performance, ductility Good, anti-seismic performance is stronger, is suitable for high building structure;By prefabricated assembled concrete filled steel tube and group by way of starching anchor It closes beam to link together, reduces difficulty of construction, accelerate speed of application, avoid when being bolted and deviation occur and influence to apply Work, also reduces the welding workload of construction site, and beam column component is prefabricated assembled, scene progress assembly, speed of application Fastly, site environment is good, and composite structure has concurrently compared to steel construction and reinforced concrete structure from heavy and light, the excellent spy of fire resistance Point, concrete filled steel tube greatly reduces the use of template in prefabrication process and work progress, and steel case concrete combination beam 19 pours Project cost also is reduced without using template during building.
Secondly, concrete-filled steel tubular frame Structure Beam-column node, the preparatory aperture in its steel core concrete column steel pipe walls, setting In column through anchoring overlap joint reinforcing bar, overlap bar splicing with being installed in the beam on steel box-girder in advance, and with concreting at It is whole, beam-ends moment of flexure is undertaken with armored concrete at node, is connected instead of the iris type of conventional steel concrete beam and column node, this Kind of mode open cell content is few, few to the weakening of steel pipe, while avoiding iris type at node and connecting, concrete filled steel tube disconnect construction and Complicated technology and high welding capacity caused by the globality and diaphragm construction of influence column improve assembly speed of application, meanwhile, steel The reinforcement steel plate of pipe concrete column external welding also compensates for loss of the steel pipe walls aperture to styletable bearing capacity.
In addition, being welded in the slurry anchor connection U-lag 13 of styletable in advance, steel plate thickness is not less than 3mm, mixed for shelving steel case Solidifying soil combination beam 19 and precast slab 25, and the template as pouring concrete 18 after beam-ends, the thickness of slurry anchor connection U-lag 13 Degree can guarantee effectively shelving for beam slab, pressure distortion be reduced to the greatest extent, in U-lag column according to the beam slab shelved thereon from recanalization Angle steel bracket 12 is welded below end, the shearing for bearing to construct with service stage, the same groove width of 12 length of angle steel bracket, on demand It wants and ribbed stiffener 28 is arranged according to steel construction requirement, midpoint transverse spot reinforcing bar or anchor bolt can prevent steel tank in external load in slot Lower appearance torsion, buckling or bulging, it is ensured that the co-operation of itself and concrete, slurry anchor connection U-lag 13 is in beam slab assembled in situ Play the role of lying over when construction, reduce scaffold usage amount, and can be used as the template of rear pouring concrete 18, further side Prefabricated construction, improve speed of application, reduce cost, meanwhile, the presence of U-lag mentions beam-ends shear behavior significantly It rises, setting in beamStirrup 24 in ellbeam are formed together closing ring with steel tank;Coagulation in steel case concrete combination beam 19 Native part is lifted in precast slab 25 completes after-pouring, and concrete slab edge can be used as template, when pouring completion and Ban Ding Concordantly, work progress can greatly save steel using steel box-girder form without using template, and from heavy and light, stress is more reasonable, steel case Horizontal baffle 20 can prevent beam from occurring torsion, buckling or bulging under external load in the middle part of beam, and beam is made to give full play to performance, combination beam Form decrease the amount of pouring of concrete, improve assembly rate, end socket steel plate 21 is welded in steel box-girder end, as concrete While formwork for placing, but also rear pouring concrete 18 forms " arch " component, reasonable stress.
Meanwhile stirrup 24 and two sides steel plate form closing ring in beam, also improve between rear pouring concrete 18 and steel box-girder Cooperative work performance, while in beam stirrup 24 also as beam upper anchorage overlap joint reinforcing bar 22 bracket, convenient for beam top overlap The installation of vertical muscle;Steel bar stress in plate is stretched out plate end by the precast slab 25 in beam-column joint, and length is same to combine deck-siding, And bound with anchoring overlap joint reinforcing bar in beam, entirety is built up with anchoring overlap joint bar pouring in beam, improves the globality of structure;And And in steel box-girder after pouring concrete 18 and precast slab 25 form "T"-shaped section, shared beam upper pressure, by Power is reasonable, using beam side concrete flange plate, realizes that beam slab works together, improves the above Compressive Performance of beam natural axis;Whole knot In structure, steel box-girder, plate, steel core concrete column are prefabricated components, only steel case-combination beam concrete parts of cast in situs With beam anchor part, assembly rate is high, and construction is fast.
Concrete-Filled Square Steel Tube lower prop 1 and the docking of Concrete-Filled Square Steel Tube upper prop 3 using additional steel sleeve 2 and are bolted, right Before connecing, the deviation of component production is fully considered, cement slurry bed course 9 is set to adjust the contraposition of upper lower prop docking bolt hole 29 in time Difference, resistant slide pit 4, energy can be arranged with outer nested steel pipe to avoid the reduction welded to ductility of joint, steel pipe walls by being bolted Effectively reduce sliding between the two.
In the above-described embodiments, steps are as follows for the Specific construction of entire scheme:
Step 1: (steel sleeve 2, angle steel bracket 12 and slurry anchor that outer nesting is welded in factory connect Concrete-Filled Square Steel Tube lower prop 1 U-lag 13 is connect, lower prop docking bolt hole 29 is held successfully, presets anchoring overlap joint reinforcing bar and penetration concrete) it is installed in place;
Step 2: pouring into cement slurry on lower prop concrete;
Step 3: lifting Concrete-Filled Square Steel Tube upper prop 3, adjustment bolt hole, after contraposition is accurate, high-strength frictional property bolt A8 connects Connect lower prop;
Step 4: the pressure grouting in upper lower prop docking bolt hole 29;
Step 5: stirrup 16 in the slot on slurry anchor connection U-lag 13 is smoothed out with the fingers beam column intersection;
Step 6: (beam lower anchor overlap joint reinforcing bar 23 welds completion, beam top to lifting steel case concrete combination beam 19 in advance Anchoring overlap joint reinforcing bar 22 is bound in beam on stirrup 24, lateral drawknot anchor bolt 14, end socket steel plate 21 and middle part horizontal baffle 20 It is welded in place), and with slurry anchor connection U-lag 13 in end angular solder design;
Step 7: lateral drawknot anchor bolt 14, ribbed stiffener transverse direction steel tie 15 in spot welding slurry anchor connection U-lag 13, and will It smoothes out with the fingers the stirrup 16 in the slot on column side and catches on lateral drawknot anchor bolt 14, binding is in place;
Step 8: setting up prefabricated plate angle unit 30, prefabricated edges of boards unit 31, unit 32, scaffold and template in prefabricated board;
Step 9: lifting plate separates unit;
Step 10: rear pouring concrete 18, each component is poured integral.
In summary: a kind of perforation slurry prefabricated assembled concrete-filled steel tubular frame structure of anchor provided by the invention, by square steel Pipe concrete lower prop 1, Concrete-Filled Square Steel Tube upper prop 3, the steel case concrete combination beam 19 of half opening formula, precast slab 25 are logical The mode for crossing slurry anchor connects integral, and the amount of pouring is few, and assembly rate is high, and each component is prefabricated assembled, on-site consolidation, construction speed Degree is fast, simplifies working procedure, optimizes construction environment;Secondly, slurry anchor is low for construction precision requirement, it is convenient for worker operation, Beam column component is composite structure form, and from heavy and light, stress is more reasonable, can give full play to material property, bearing capacity is high, fire resistance Can be good, shock resistance is good.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (9)

1. the prefabricated assembled concrete-filled steel tubular frame structure of anchor is starched in a kind of perforation, which is characterized in that including under Concrete-Filled Square Steel Tube It is column (1), Concrete-Filled Square Steel Tube upper prop (3), the steel case concrete combination beam (19) of half opening formula, prefabricated plate angle unit (30), pre- Node, column-column bolt connection node, concrete are poured after unit (32) and column-beam in making sheet side unit (31), prefabricated board Native plate (25) and rear pouring concrete (18).
2. the prefabricated assembled concrete-filled steel tubular frame structure of anchor is starched in a kind of perforation as described in claim 1, it is characterised in that: institute State steel case concrete combination beam (19), precast slab (25), Concrete-Filled Square Steel Tube lower prop (1) and Concrete-Filled Square Steel Tube upper prop It (3) is prefabricated components, column-girder connection uses rear pouring concrete (18) slurry anchor connection, rear pouring concrete (18) strength grade Not less than C35;The Concrete-Filled Square Steel Tube lower prop (1) and Concrete-Filled Square Steel Tube upper prop (3) pass through when pouring column inner concrete Reinforced hole is fixed with lower anchor overlap joint reinforcing bar (11) in column internal upper part anchoring overlap joint reinforcing bar (10) and column;The steel case concrete Beam upper anchorage overlap joint reinforcing bar (22) and beam lower anchor overlap joint reinforcing bar (23) are fixed in combination beam (19), beam upper anchorage is taken It connects reinforcing bar (22) and beam lower anchor overlap joint reinforcing bar (23) anchors lower part anchor in overlap joint reinforcing bar (10) and column with column internal upper part respectively Admittedly overlapping reinforcing bar (11) corresponding overlap joint in slurry anchor connection U-lag (13), the reinforcing bar trade mark is not less than HRB400, steel when overlap joint 90 ° of crotches are arranged in muscle end, and the lap of splice is arranged according to the relevant technologies regulation;It is provided in the precast slab (25) Plate upper anchorage reinforcing bar (26) and plate lower anchor reinforcing bar (27), plate upper anchorage reinforcing bar (26) and plate lower anchor reinforcing bar (27) It overlaps, and is poured after passing through together with the reinforcing bar in steel case concrete combination beam (19) mixed on beam upper anchorage overlap joint reinforcing bar (22) Solidifying soil (18) pours integral.
3. the prefabricated assembled concrete-filled steel tubular frame structure of anchor is starched in a kind of perforation as described in claim 1, it is characterised in that: institute Concrete-Filled Square Steel Tube lower prop (1) and Concrete-Filled Square Steel Tube upper prop (3) are stated using square column form, steel pipe thickness is not preferably less than 3mm, steel Pipe inner concrete grade is not less than C35, and the steel sleeve (2) of nested encryptions is welded on tube wall, and weldering is formed between steel sleeve (2) It stitches (7), the sleeve thickness of steel sleeve (2) is not less than thickness of steel pipe, and weld seam (7) uses E50 type welding rod, the width of weld seam (7) With post jamb thickness, column steel pipe walls stretch out flooring 300-500mm, for overlapping with upper layer Concrete-Filled Square Steel Tube upper prop (3), in lower layer side The concrete top poured in advance in concrete filled steel tube lower prop (1) pours into certain thickness cement slurry bed course (9);The square steel tube Concrete lower prop (1) and Concrete-Filled Square Steel Tube upper prop (3) are connected by high-strength frictional property bolt A (8), and dock spiral shell from upper lower prop Keyhole (29) pressure grouting, select high-strength grout (6) to tamp lower prop overlapped hollow part.
4. the prefabricated assembled concrete-filled steel tubular frame structure of anchor is starched in a kind of perforation as claimed in claim 3, it is characterised in that: institute It is corresponding reserved on the post jamb of Concrete-Filled Square Steel Tube upper prop (3) and outer nested steel sleeve (2) to state Concrete-Filled Square Steel Tube lower prop (1) Reinforcing bar through hole, aperture are not preferably less than 25mm, are no more than 30mm, and spacing is not less than 25mm between hole, and hole location setting is mixed according to steel case Depending on the overlap joint reinforcing bar welded on solidifying soil combination beam (19), in post jamb and reserved upper lower prop corresponding on outer nested steel sleeve (2) It docks bolt hole (29), upper lower prop docking bolt hole (29) is greater than reinforcing bar through hole, it is used for pressure grouting, after the completion of grouting, peace Gasket is added in upper lower prop docking bolt hole (29) when filling bolt, is also set up on post jamb and outer nested steel sleeve (2) anti- It slides pit (4), the diameter of resistant slide pit (4) is determined according to column dimension, is played pit area and is no more than with region steel plate rectangle The 20% of area.
5. the prefabricated assembled concrete-filled steel tubular frame structure of anchor is starched in a kind of perforation as claimed in claim 2, which is characterized in that institute It states the outer nested steel sleeve (2) of slurry anchor connection U-lag (13) and column and first passes through fillet weld and connect, then with high-strength frictional property bolt B (17) together with column anchoring, slurry anchor connection U-lag (13) can be formed by steel plate punched, or be welded by steel plate, slurry The length that anchor connects U-lag (13) is 500-800mm, and steel plate thickness used is not less than 3mm, and the steel plate that both ends are stretched out is for putting It sets precast slab (25), extension elongation is not less than 50mm, stretches out below steel plate and ribbed stiffener (28) are arranged, and is corresponding in slot Position midpoint welds lateral drawknot anchor bolt (14);Transverse spot is put more energy at slurry anchor connection U-lag (13) height two-third point The tie bar diameter of rib transverse direction steel tie (15), ribbed stiffener transverse direction steel tie (15) uses 8-12mm, the same U-lag of length Inner width, strength grade are not less than HRB335;It is mixed in slurry anchor connection U-lag (13) and Concrete-Filled Square Steel Tube lower prop (1) and square steel tube Angle steel bracket (12) are set below solidifying soil upper prop (3) junction, the length of angle steel bracket (12) is the same as U-lag width, the angle steel trade mark Not less than Q345, angle steel bracket (12) first passes through fillet weld seam on steel sleeve (2) nested outside column, recycles high-strength friction Property bolt B (17) and column anchor together, it is pre- in post jamb corresponding position on the end steel plate of the slurry anchor connection U-lag (13) Stay bolt hole and anchor bar hole.
6. the prefabricated assembled concrete-filled steel tubular frame structure of anchor is starched in a kind of perforation as described in claim 1, which is characterized in that institute State that U-lag can be welded by steel plate below the beam of steel case concrete combination beam (19) or steel plate punched forms, two sides steel plate is thick It spends than slurry anchor connection U-lag (13) thinner 1mm, is provided with horizontal baffle in the middle part of steel case concrete combination beam (19) (20), horizontal baffle (20) is with a thickness of 2-3mm, and is connected to midpoint on side plate with one-side-filled angle weld and two sides steel plate, as The template of pouring concrete (18) afterwards stretches out one section of steel plate at the top of the U-lag of the steel case concrete combination beam (19) of half opening formula, Concordant with slurry anchor connection U-lag (13) stretching steel plate edge, the steel plate trade mark used in steel case concrete combination beam (19) is not less than Q345, and be the 1/4-1/3 for connecting U-lag length with slurry anchor connection U-lag (13) lap of splice, and in slurry anchor connection U-lag (13) end angular solder design oblique is set in the lower section of the end of steel case concrete combination beam (19), middle part horizontal baffle (20) It sets end socket steel plate (21), end socket steel plate (21) thickness is not less than 3mm, and with steel plate weld all around around, end socket steel plate (21) is according under beam Portion indulges muscle position reserved steel bar hole, welds in beam upper side panelStirrup (24) in ellbeam, the beam upper anchorage overlap steel Muscle (22) binds or is welded on stirrup in beam (24), and beam lower anchor overlap joint reinforcing bar (23) is welded in beam lower steel plate inner surface On, and end socket steel plate (21) are passed through, beam lower anchor overlaps reinforcing bar (23) length and is not less than 1/3 girder span.
7. the prefabricated assembled concrete-filled steel tubular frame structure of anchor is starched in a kind of perforation as claimed in claim 6, which is characterized in that institute It states in stirrup in beam (24) and is provided on slurry anchor connection U-lag (13)Stirrup (16) in shape slot, stirrup (16) is straight in slot Diameter 6-8mm, grade are not less than HRB335, and stirrup (16) highly overlaps reinforcing bar (11) for lower anchor in column and arrives concrete in slot 135 degree of crotches are arranged in distance between the plate upper anchorage reinforcing bar (26) on native plate (25) top, plate upper anchorage reinforcing bar (26) lower part, Hook length requires setting according to anchoring, and the stirrup and lateral drawknot anchor bolt (14) in slurry anchor connection U-lag (13) are bound, in slot In stirrup (16) and beam stirrup (24) preferably with plate upper anchorage reinforcing bar (26), plate lower anchor reinforcing bar (27), lateral drawknot anchor bolt (14) it is staggered with ribbed stiffener transverse direction steel tie (15).
8. the prefabricated assembled concrete-filled steel tubular frame structure of anchor is starched in a kind of perforation as described in claim 1, which is characterized in that institute It states precast slab (25) plate thickness and is taken as 90-120mm, plate uses squared region lattice prefabricated unit, arranging plate top in plate central sill Anchor bar (26) and plate lower anchor reinforcing bar (27) stretch out plate section, and plate upper anchorage reinforcing bar (26) extension elongation is steel case coagulation Native combination beam (19) is wide, and plate lower anchor reinforcing bar (27) extension elongation is plate protective layer thickness, anchor bar length between plate and plate It is designed according to related specifications, and is attached by rear pouring concrete (18).
9. the prefabricated assembled concrete-filled steel tubular frame structure of anchor is starched in a kind of perforation as described in claim 1, which is characterized in that institute State prefabricated plate angle unit (30), in prefabricated edges of boards unit (31) and prefabricated board between unit (32) respectively by board-to-board top anchor Gu reinforcing bar (33) and board-to-board lower anchor reinforcing bar (34) connection, prefabricated plate angle unit (30), prefabricated edges of boards unit (31) and in advance The inside of unit (32) is respectively arranged with vertical direction plate upper reinforcement (35) and vertical direction plate lower rebar (36) in making sheet, During installation, one end can be shelved on slurry anchor connection U-lag (13) in advance for prefabricated plate angle unit (30) and prefabricated edges of boards unit (31) Or steel case concrete combination beam (19) stretch out steel plate on, then by rear pouring concrete (18) in beam overlap joint bar pouring build up it is whole Body, precast slab (25) need to set up template and scaffold is constructed.
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Denomination of invention: A prefabricated concrete filled steel tubular frame structure with perforated mortar anchor

Effective date of registration: 20210519

Granted publication date: 20200929

Pledgee: Industrial and Commercial Bank of China Limited MAANSHAN Tuanjie square sub branch

Pledgor: CHINA MCC17 GROUP Co.,Ltd.

Registration number: Y2021980003566