CN106149877B - Concrete frame structure prefabricated post and the docking structure and method at beam slab node - Google Patents

Concrete frame structure prefabricated post and the docking structure and method at beam slab node Download PDF

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Publication number
CN106149877B
CN106149877B CN201610478116.5A CN201610478116A CN106149877B CN 106149877 B CN106149877 B CN 106149877B CN 201610478116 A CN201610478116 A CN 201610478116A CN 106149877 B CN106149877 B CN 106149877B
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prefabricated post
concrete
cast
node
precast
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CN106149877A (en
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陈静
吴佳雄
周林根
李英
蒋义
张忠杰
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Ningbo Preca Construction Technology Co Ltd
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Ningbo Preca Construction Technology 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
    • E04B1/21Connections specially adapted therefor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work

Abstract

The invention discloses the docking structures and method at a kind of concrete frame structure prefabricated post and beam slab node, the structure includes upper and lower prefabricated post (1), the composite beam (2) of both sides and node region (3), the top of lower section prefabricated post (1) is concordant with the superposed surfaces of the precast beam (2.1) of both sides composite beam (2), lower section prefabricated post (1) is through with horizontal metal bellows (6), and the hogging moment Reinforcement (7) of the bottom of both sides precast beam (2.1) is stretched into and is anchored in metal bellows (6);Node region (3) anchoring has the grout pipe (8) connected with metal bellows (6);The key of this method is:All hogging moment Reinforcements (7) of both sides precast beam (2.1) bottom are stretched into the metal bellows (6) of the prefabricated post (1) and anchor.The structure and method are avoided that at node due to narrow space and operating difficulties, can reduce cast-in-site concrete dosage.

Description

Concrete frame structure prefabricated post and the docking structure and method at beam slab node
Technical field
The present invention relates to the construction methods and technology at the node of concrete frame structure, are especially a kind of concrete frame The prefabricated post of frame structure and the docking structure and docking calculation at the node of composite beam and superimposed sheet.
Background technology
In recent years, country widelys popularize building industrialization, prefabricated process.It is pre- for concrete frame structure Component processed includes prefabricated post, composite beam and superimposed sheet.Most of shell of column of prefabricated post is prefabricated in the factory, is only existed Cast-in-place concrete is needed at docking node, moreover, to realize the docking of upper and lower two prefabricated post, it is pre-buried every section of prefabricated post lower end Multiple vertical slurry anchor sleeves, in the pre-buried more vertical applied force reinforcing bars in the top of every prefabricated post, vertical applied force reinforcing bar protrusion The top surface of prefabricated post during docking, by multiple slurry anchor sleeves of the more steel bar stresses insertion upper prop of lower prop, then is in the milk.It is folded It closes beam to be formed by stacking by the Cast-in-situ Beam on the top of the precast beam and cast on-site of lower part prefabricated in factory, prefabricated top surface of the beam is Have Reinforcement in coarse superposed surfaces, precast beam and Cast-in-situ Beam, and the latter half of stirrup be located at precast beam and on Half part is located in Cast-in-situ Beam.Overlapping (building) plate is formed by stacking by the prefabricated board of lower part and the Bars In Poured Concrete Slab on top, prefabricated board and existing It pours and plate face reinforcing bar is equipped in plate, the top surface of prefabricated board is also coarse superposed surfaces.The purpose of above-mentioned prefabricated components is promoted, when Cast-in-site amount is reduced, accelerates the duration;Second is that the prefabricated industrial component of batch in factory, better than cast-in-site quality;Third, Can be using precast beam, plate as end template, the template at the scene of reducing and the dosage of support.
How above-mentioned prefabricated components to be docked at node to form integral frame structure is to promote element precast It is crucial.
As shown in Figure 1, the concrete frame structure prefabricated post of the prior art and the docking structure at beam slab node are as follows:Under Side prefabricated post 101 top it is concordant with the bottom surface of the precast beam 1021 of the composite beam 102 of both sides, the composite beam 102 of both sides, on Region between lower two prefabricated posts 101 is node region 103, and node region 103 is cast with concrete, two precast beams 1021 The hogging moment Reinforcement 107 of bottom stretches into 103 concrete of node region and the hogging moment of two precast beams, 1021 bottom Reinforcement 107 is connected with each other, and every 1021 upper of precast beam has a Cast-in-situ Beam 1022, lower section prefabricated post 101 it is vertical The concrete of steel bar stress 104 through node region 103 is stretched into the slurry anchor sleeve 105 of top prefabricated post 101, starches anchor sleeve Concrete material is perfused in 105;If the docking structure further includes superimposed sheet 106, the Bars In Poured Concrete Slab 1062 of superimposed sheet 106 is located at overlapping 1061 top of prefabricated board of plate 106, and 1062 top surface of Bars In Poured Concrete Slab and 1022 either flush of Cast-in-situ Beam, the common of Cast-in-situ Beam 1022 are indulged Run through the concrete of node region 103 to the plate face reinforcing bar of steel bar stress, Bars In Poured Concrete Slab 1062.
The concrete frame structure prefabricated post of the prior art and the docking calculation at beam slab node are as follows.
It is first that the prefabricated post of lower section is in place, support is set up, two precast beams of both sides are lifted in place in support so that two The bottom surface of precast beam and the either flush of prefabricated post, and the hogging moment Reinforcement of the precast beam bottom of both sides stretch into it is prefabricated In the cross-sectional width of column;Worker connects the hogging moment Reinforcement of both sides precast beam bottom in the gap of two precast beams It connects, then the side template of Cast-in-situ Beam is set up in support;If the node further includes superimposed sheet, the prefabricated board of superimposed sheet is set up On the side template of Cast-in-situ Beam, and the common Reinforcement of Cast-in-situ Beam and the plate face reinforcing bar of Bars In Poured Concrete Slab are laid with, and it is above-mentioned Common Reinforcement and plate face reinforcing bar are continuously uninterruptedly laid in node region;It then pours into a mould node region, show The concrete of beam and Bars In Poured Concrete Slab is poured, until the elevation of top of Cast-in-situ Beam is reached, at this point, the common longitudinal stress of complete Cast-in-situ Beam The stage casing of the plate face reinforcing bar of reinforcing bar and Bars In Poured Concrete Slab is just anchored in node concrete and both ends are anchored at the Cast-in-situ Beam of both sides respectively Or in Bars In Poured Concrete Slab;After concrete is stiff, top prefabricated post is lifted on above node and causes the slurry anchor sleeve of upper box type column It is sleeved on the convex vertical applied force reinforcing bar of lower section prefabricated post, finally to being in the milk in slurry anchor sleeve.
The concrete frame structure prefabricated post of the prior art is lacked with the docking structure at beam slab node and method there are following It falls into.First, after precast beam installation is in place, the region between node region namely two precast beams is than narrow, and worker is at this When the hogging moment Reinforcement of prefabricated column section stretched into region to precast beam bottom being attached operation, operating difficulties, When especially the node region has four orthogonal precast beam docking, working space is just more restricted, and connection operation is applied Work is more difficult;Secondly, the concrete amount of cast-in-site is still larger, waits its stiff meeting schedule delays.
The content of the invention
The invention solves a technical problem be to provide one kind be avoided that at node operated due to narrow space it is tired The concrete frame structure prefabricated post of the dosage of concrete difficult, that cast-in-site can be reduced and the docking structure at beam slab node.
The technical solution of the present invention is to provide at a kind of concrete frame structure prefabricated post and beam slab node Docking structure, it includes prefabricated post of lower section, the prefabricated post of top, the composite beam of both sides and positioned at upper and lower prefabricated post and both sides Node region between composite beam, be cast with concrete in node region, precast beam and top of the every composite beam by lower part Cast-in-situ Beam is formed by stacking;Lower section prefabricated post anchoring has vertical applied force reinforcing bar, and vertical applied force reinforcing bar passes through the concrete of node region It stretches into the slurry anchor sleeve of top prefabricated post, starches in anchor sleeve and be perfused with concrete material;
The top of lower section prefabricated post is concordant with the superposed surfaces of both sides precast beam, and lower section prefabricated post is through with horizontal metal wave Line pipe, the hogging moment Reinforcement of the bottom of both sides precast beam are stretched into and are anchored in metal bellows;Node region mixes Anchoring has a grout pipe, opening and Cast-in-situ Beam either flush, grout pipe lower end and the wavy metal of grout pipe upper end in solidifying soil Pipe connects;Anchoring has the grout outlet connected with metal bellows in the prefabricated post of lower section;In grout pipe, metal bellows and grout outlet It is perfused with concrete material.
The invention solves another technical problem be to provide one kind and be avoided that at node and operated due to narrow space The concrete frame structure prefabricated post of the dosage of concrete difficult, that cast-in-site can be reduced and the side of docking at beam slab node Method.
Another technical solution of the present invention is to provide at a kind of concrete frame structure prefabricated post and beam slab node Docking calculation, step includes:
It is first that the prefabricated post of lower section is in place;The precast beam of both sides is lifted again in place so that the top surface of the precast beam of both sides With the either flush of the prefabricated post, and cause both sides precast beam bottom all hogging moment Reinforcements stretch into the prefabricated post Metal bellows in;Then the side template of Cast-in-situ Beam is set up, and is laid with the common Reinforcement of Cast-in-situ Beam;If the section Point further includes superimposed sheet, then rides upon on the side template of Cast-in-situ Beam the prefabricated board of superimposed sheet, and be laid with the Bars In Poured Concrete Slab of superimposed sheet Plate face reinforcing bar;The then concrete of cast node region, Cast-in-situ Beam and Bars In Poured Concrete Slab, until reaching the elevation of top of Cast-in-situ Beam; Subsequently to grouting tube opening grouting so that slurries are flowed out through grout pipe, metal bellows and grout outlet, so that both sides are prefabricated The hogging moment Reinforcement anchoring of beam bottom;After concrete is stiff, top prefabricated post is lifted on above node and made The slurry anchor sleeve that box type column must be gone up is sleeved on the convex vertical applied force reinforcing bar of lower section prefabricated post, is to grouting in slurry anchor sleeve finally It can.
Docking structure and method at concrete frame structure prefabricated post of the present invention and beam slab node compared with prior art, It has the following advantages and effect.
First, both sides precast beam bottom hogging moment Reinforcement is the gold that prefabricated post is inserted directly into hoisting process Belong to bellows and anchoring of being in the milk, in this way, worker does not have to that the node region between precast beam must be crept into as the prior art The process of operation is attached, is not limited by a space naturally, solves that node region working space is small, connection construction is inconvenient Problem, and ensure that the connection effect of hogging moment Reinforcement, improve construction quality;Secondly, prefabricated post height rises To with precast beam either flush, the concrete this reduces scene pours fluence, reduces the time for waiting concrete stiff, adds The fast duration.
Description of the drawings
Fig. 1 is the concrete frame structure prefabricated post of the prior art and the positive sectional structure of the docking structure at beam slab node Schematic diagram.
Fig. 2 is that concrete frame structure prefabricated post of the present invention and the positive sectional structure of the docking structure at beam slab node are illustrated Figure.
Shown in figure
The parts 101 of the docking structure of the prior art, prefabricated post, 102, composite beam, 1021, precast beam, 1022, existing Pour beam, 103, node region, 104, vertical applied force reinforcing bar, 105, slurry anchor sleeve, 106, superimposed sheet, 1061, prefabricated board, 1062, Bars In Poured Concrete Slab, 107, hogging moment Reinforcement;
The parts 1 of docking structure of the present invention, prefabricated post, 2, composite beam, 2.1, precast beam, 2.2, Cast-in-situ Beam, 3, node Region, 4, vertical applied force reinforcing bar, 5, slurry anchor sleeve, 6, metal bellows, 7, hogging moment Reinforcement, 8, grout pipe, 9, Grout outlet, 10, superimposed sheet, 10.1, prefabricated board, 10.2, Bars In Poured Concrete Slab, 11, rubber seal ring.
Specific embodiment
The invention will be further described in the following with reference to the drawings and specific embodiments.
As shown in Fig. 2, concrete frame structure prefabricated post of the present invention and the docking structure at beam slab node, it includes lower section Prefabricated post 1, the prefabricated post of top 1, the composite beam 2 of both sides and the section between upper and lower prefabricated post 1 and both sides composite beam 2 Region 3 is put, concrete is cast in node region 3.Sometimes, 3 more than two composite beams 2 of the node region, but have four The orthogonal composite beam 2 of root docks.Every composite beam 2 overlapped by the precast beam 2.1 of lower part and the Cast-in-situ Beam 2.2 on top and Into.The anchoring of lower section prefabricated post 1 has vertical applied force reinforcing bar 4, and the concrete of vertical applied force reinforcing bar 4 through node region 3 stretches into top In the slurry anchor sleeve 5 of prefabricated post 1, concrete material is perfused in slurry anchor sleeve 5.
The top of lower section prefabricated post 1 is concordant with the top surface i.e. superposed surfaces of both sides precast beam 2.1.Lower section prefabricated post 1 is passed through Horizontal metal bellows 6 is connected with, the hogging moment Reinforcement 7 of the bottom of both sides precast beam 2.1 stretches into and is anchored at gold Belong in bellows 6.Anchoring has a grout pipe 8 in 3 concrete of node region, and opening and the Cast-in-situ Beam 2.2 of 8 upper end of grout pipe push up Face is concordant, and 8 lower end of grout pipe is connected with metal bellows 6.Anchoring has to go out with what metal bellows 6 connected in lower section prefabricated post 1 Starch pipe 9;Grout outlet 9 is L-shaped, and 9 upper end of grout outlet is connected with metal bellows 6, and the opening of lower end is positioned at lower section prefabricated post 1 Side is also the lower section of node region 3 simultaneously.Concrete material is perfused in grout pipe 8, metal bellows 6 and grout outlet 9.
The common Reinforcement of Cast-in-situ Beam 2.2, the plate face reinforcing bar of Bars In Poured Concrete Slab 10.2 run through node concrete.Described Common Reinforcement refers to other Reinforcements in addition to hogging moment Reinforcement 7.Bars In Poured Concrete Slab 10.2 The top surface of top surface and Cast-in-situ Beam 2.2 be generally flush with.
As shown in Fig. 2, concrete frame structure prefabricated post of the present invention and the docking calculation at beam slab node, step is such as Under.
It is first that the prefabricated post 1 of lower section is in place;If the prefabricated post 1 of first layer, just the ground with ground is fixed, if The second layer and more than, then be equally to be connected fixation with the vertical applied force reinforcing bar 4 of next layer of prefabricated post 1 using starching anchor sleeve 5.
Support is set up again, the loop wheel machine of precast beam 2.1 of both sides is lifted in place in support so that the precast beam of both sides 2.1 top surface and the either flush of the prefabricated post 1, and cause all hogging moment longitudinal stress steel of 2.1 bottom of both sides precast beam Muscle 7 is stretched into the metal bellows 6 of the prefabricated post 1;In the step, the set unification rubber on hogging moment Reinforcement 7 Sealing ring 11, then hogging moment Reinforcement 7 is inserted into metal bellows 6 so that rubber seal ring 11 blocks wavy metal The both ends of pipe 6 avoid end spillage.
Then the side template of Cast-in-situ Beam 2.2 is set up in support, and is laid with the common Reinforcement of Cast-in-situ Beam 2.2. If the node further includes superimposed sheet 10, the prefabricated board 10.1 of superimposed sheet 10 is ridden upon on the side template of Cast-in-situ Beam 2.2, and It is laid with the plate face reinforcing bar of the Bars In Poured Concrete Slab 10.2 of superimposed sheet 10.And the common Reinforcement of above-mentioned Cast-in-situ Beam 2.2 and cast-in-place The plate face reinforcing bar of plate 10.2 is continuously uninterruptedly laid in node region 3.
The then concrete of cast node region 3, Cast-in-situ Beam 2.2 and Bars In Poured Concrete Slab 10.2, until reaching the top of Cast-in-situ Beam 2.2 Portion's absolute altitude is also the elevation of top of Bars In Poured Concrete Slab 10.2 simultaneously;At this point, the common Reinforcement of complete Cast-in-situ Beam 2.2 and existing The stage casing for pouring the plate face reinforcing bar of plate 10.2 is just anchored at the Cast-in-situ Beam that in 3 concrete of node region and both ends are anchored at both sides respectively 2.2 or in Bars In Poured Concrete Slab 10.2.
It being subsequently open and is in the milk to grout pipe 8 so that slurries are flowed out through grout pipe 8, metal bellows 6 and grout outlet 9, with Just the hogging moment Reinforcement 7 of 2.1 bottom of both sides precast beam is anchored;When slurries are flowed out from grout outlet 9, then illustrate metal Slurries are already filled in bellows 6, stop being in the milk and being exported with the clogging grout outlet 9 of plug.
After concrete is stiff, top prefabricated post 1 is lifted on node top and so that 5 sets of the slurry anchor sleeve of upper box type column On the convex vertical applied force reinforcing bar 4 of lower section prefabricated post 1, finally to grouting in slurry anchor sleeve 5.Certainly, top prefabricated post 1 The slip casting passage that upper positive reservation is connected with slurry anchor sleeve 5.

Claims (2)

1. the docking structure at a kind of concrete frame structure prefabricated post and beam slab node, it include lower section prefabricated post (1), on The prefabricated post (1) of side, the composite beam (2) of both sides and the node area between upper and lower prefabricated post (1) and both sides composite beam (2) Domain (3), is cast with concrete in node region (3), every composite beam (2) by lower part precast beam (2.1) and top it is cast-in-place Beam (2.2) is formed by stacking;Lower section prefabricated post (1) anchoring has vertical applied force reinforcing bar (4), and vertical applied force reinforcing bar (4) passes through node area The concrete in domain (3) is stretched into the slurry anchor sleeve (5) of top prefabricated post (1), and concrete material is perfused in slurry anchor sleeve (5);Its feature It is:
The top of lower section prefabricated post (1) is concordant with the superposed surfaces of both sides precast beam (2.1), and lower section prefabricated post (1) is through with transverse direction Metal bellows (6), the hogging moment Reinforcement (7) of the bottom of both sides precast beam (2.1) stretches into and is anchored at metal In bellows (6);Anchoring has a grout pipe (8) in node region (3) concrete, the opening of grout pipe (8) upper end with it is cast-in-place Beam (2.2) either flush, grout pipe (8) lower end are connected with metal bellows (6);The interior anchoring of lower section prefabricated post (1) has and metal The grout outlet (9) of bellows (6) connection;Concrete material is perfused in grout pipe (8), metal bellows (6) and grout outlet (9).
2. a kind of docking using concrete frame structure prefabricated post described in claim 1 and the docking structure at beam slab node Method, it is characterised in that:Its step includes:
It is first that the prefabricated post (1) of lower section is in place;The precast beam (2.1) of both sides is lifted again in place so that the precast beam of both sides (2.1) top surface and the either flush of the prefabricated post (1), and cause all hogging moments longitudinal direction of both sides precast beam (2.1) bottom Steel bar stress (7) is stretched into the metal bellows (6) of the prefabricated post (1);Then the side template of Cast-in-situ Beam (2.2) is set up, and is spread If the common Reinforcement of Cast-in-situ Beam (2.2);If the node further includes superimposed sheet (10), by the pre- of superimposed sheet (10) Making sheet (10.1) is ridden upon on the side template of Cast-in-situ Beam (2.2), and is laid with the plate face steel of the Bars In Poured Concrete Slab (10.2) of superimposed sheet (10) Muscle;The then concrete of cast node region (3), Cast-in-situ Beam (2.2) and Bars In Poured Concrete Slab (10.2), until reaching Cast-in-situ Beam (2.2) Elevation of top;It is subsequently open and is in the milk to grout pipe (8) so that slurries are through grout pipe (8), metal bellows (6) and pulp (9) outflow is managed, so that the hogging moment Reinforcement (7) of both sides precast beam (2.1) bottom is anchored;Treat that concrete is stiff Afterwards, top prefabricated post (1) is lifted on above node and so that the slurry anchor sleeve (5) of top prefabricated post is sleeved on lower section prefabricated post (1) on convex vertical applied force reinforcing bar (4), finally to grouting in slurry anchor sleeve (5).
CN201610478116.5A 2016-06-23 2016-06-23 Concrete frame structure prefabricated post and the docking structure and method at beam slab node Active CN106149877B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109518980B (en) * 2018-11-26 2021-04-27 福建工程学院 Device for adjusting hoisting elevation and verticality of fabricated concrete structure column and construction method thereof
CN110820934A (en) * 2019-11-01 2020-02-21 中南林业科技大学 Fabricated concrete frame joint and construction method thereof

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CN105625572A (en) * 2016-02-29 2016-06-01 东南大学 Prefabricated prestressed concrete frame beam-column joint making disparate use of high performance materials
CN206000020U (en) * 2016-06-23 2017-03-08 宁波普利凯建筑科技有限公司 Docking structure at concrete frame structure prefabricated post and beam slab node

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