CN105888108B - Built-in positioning prefabricated component reinforced concrete shear wall and construction method - Google Patents

Built-in positioning prefabricated component reinforced concrete shear wall and construction method Download PDF

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Publication number
CN105888108B
CN105888108B CN201610356408.1A CN201610356408A CN105888108B CN 105888108 B CN105888108 B CN 105888108B CN 201610356408 A CN201610356408 A CN 201610356408A CN 105888108 B CN105888108 B CN 105888108B
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muscle
steel
built
prefabricated component
horizontal
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CN201610356408.1A
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Chinese (zh)
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CN105888108A (en
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彭国禄
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中大建设股份有限公司
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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84Walls made by casting, pouring, or tamping in situ
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/0029Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
    • 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
    • E04B1/38Connections for building structures in general
    • E04B1/40Separate connecting elements
    • E04B1/41Connecting devices specially adapted for embedding in concrete
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/20Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/08Forms, which are completely dismantled after setting of the concrete and re-built for next pouring

Abstract

Set the present invention relates to built-in fitting in positioning built-in fitting reinforced concrete shear wall built in one kind and construction method, including prefabricated component processing and fabricating, floor construction, position the making of ladder muscle, reinforcing bar colligation, prefabricated component is installed, steel form is installed, steel form diagonal brace installs.The positioning supporting frame of vertical ladder muscle and horizontal ladder muscle as reinforcing bar colligation is used in reinforced concrete shear wall construction; positioning prefabricated component is caught in horizontal and vertical distributing reinforcement; ensure the connection of stiffener mesh sheet while protective layer thickness; reinforced mesh both sides set assembled steel form; Screw arbor with nut at both-ends is fastened by bolts through joint steel pipe; on the built-in fitting of steel form diagonal brace and floor construction, last casting concrete forms shear wall structure.The present invention improves job site order and efficiency of construction, and related measure ensure that the construction quality of shear wall, significantly improve reinforcing bar positioning precision and the protective layer thickness degree of accuracy, has preferable technical economic benefit.

Description

Built-in positioning prefabricated component reinforced concrete shear wall and construction method

Technical field

The present invention relates to positioning prefabricated component reinforced concrete shear wall and its construction method built in one kind, suitable for industry with The construction of reinforced concrete shear wall in civil buildings frame-shear-wall structure.

Background technology

Providing fortification against earthquakes for building is the first line of defence for ensureing people life property safety, is occurred from Wenchuan special violent earthquake Since,《Seismic design provision in building code》(GB50011-2010) the building aseismicity fortification intensity of easily hair earthquake territory, building are improved Structure design accordingly improves seismic behavior.Engineering practice shows that skyscraper has excellent resist using frame shear wall structure Shock stability, shear wall structure can provide powerful horizontal force resistant when earthquake occurs, so as to ensure the safety of building.

The construction quality of shear wall structure directly influences building aseismicity performance, and conventional construction method positions colligation in reinforcing bar When efficiency it is low and positioning precision is poor, protective layer thickness control need to before wall form is installed insertion positioning bar welding sequence, not only Substantial amounts of spacer bar is needed to use, expends more buildings and resources, and certain influence is produced to the duration of a project.Reinforcing bar is protected Thickness degree is accurately able to ensure that the durability of structure and the service life of extending structure, reduces cost of investment and later maintenance expense With advantageously reducing the consumption of social resources.

The difficulties run into for existing shear wall in practice of construction, it is necessary to develop a kind of efficiency of construction height, effect The good shear wall construction method of fruit, the present invention exactly develops what is formed in this context, applied to actual shear wall construction In will produce preferable economic and social benefits.

The content of the invention

It is an object of the invention to for reinforcing bar poor location existing for existing reinforced concrete shear wall and its construction method, A kind of the problems such as protective layer thickness inaccuracy and template easily run mould bulging, it is proposed that built-in positioning prefabricated component steel reinforced concrete shearing force Wall and construction method, using vertical ladder muscle and horizontal ladder muscle as reinforcing bar colligation in reinforced concrete shear wall construction Positioning supporting frame, positioning prefabricated component is caught in horizontal and vertical distributing reinforcement, ensures stiffener net while protective layer thickness The connection of piece, reinforced mesh both sides set assembled steel form, and Screw arbor with nut at both-ends is fastened by bolts through joint steel pipe, and steel form is oblique On the built-in fitting of support and floor construction, last casting concrete forms shear wall structure.

In order to realize above-mentioned technical purpose, present invention employs following technical scheme:

This built-in positioning prefabricated component reinforced concrete shear wall, including positioning ladder muscle, vertical distribution muscle, horizontal distribution Muscle and prefabricated component, both sides are provided with the steel form of concreting;The positioning ladder muscle includes vertical ladder muscle, horizontal ladder It is provided with muscle, joint steel pipe, vertical ladder muscle and horizontal ladder muscle according to the lashing location of vertical distribution muscle and horizontal distribution muscle Position eight word muscle;The prefabricated component is provided with perpendicular grooves and horizontal groove, is respectively clamped into vertical distribution muscle and horizontal distribution muscle, Prefabricated component central spot buries prefabricated component reinforcing bar.

As preferred:The steel form vertical direction is provided with square steel back cord, passes through channel-section steel back cord, billet, diagonal brace branch Hold in the built-in fitting upper plate on floor construction, positioning is carried out by prefabricated component and joint steel pipe and protective layer thickness controls, both sides Steel form through the high-strength Screw arbor with nut at both-ends and split bolt in joint steel pipe by fastening.

The construction method of this built-in positioning prefabricated component reinforced concrete shear wall, comprises the following steps:

Step 1: prefabricated component processing and fabricating:According to the reinforced mesh spacing and protective layer thickness of reinforced concrete shear wall Prefabricated-member mould, joints cement mortar are processed, maintenance is molded stand-by;

Step 2: built-in fitting is set on floor construction:In lower floor's floor construction concrete pouring construction, in its reinforced frame Upper built-in fitting corresponding position sets disrance sleeve, installation built-in fitting bottom plate, pre- after floor construction concrete reaches design strength Embedded part screw rod, and fixed by built-in fitting fastening bolt and built-in fitting upper plate;

Step 3: positioning ladder muscle makes:Positioning is set according to the vertical interval of horizontal distribution muscle on vertical ladder muscle Eight word muscle, and every the level in certain vertical range setting together horizontal ladder muscle, horizontal ladder muscle according to vertical distribution muscle Spacing sets eight word muscle of positioning, and vertical ladder muscle and horizontal ladder muscle are staggered to form grid, by connecting steel between two panels grid Pipe connects;

Step 4: reinforcing bar colligation:Eight word muscle are positioned to hanging down according to the reinforcing bar set on vertical ladder muscle and horizontal ladder muscle Straight distributing reinforcement and horizontal distribution muscle are positioned, colligation;

Step 5: prefabricated component is installed:By the perpendicular grooves on prefabricated component and horizontal groove be respectively clamped into vertical distribution muscle and On horizontal distribution muscle, and colligation is firm;

Step 6: steel form is installed:Steel shutterings of the side with square steel back cord are mounted in reinforced concrete shear wall both sides, Withstand joint steel pipe and prefabricated component on the inside of steel form, the stupefied upper setting channel-section steel back cord of outside steel back, by through in joint steel pipe High-wall Screw arbor with nut at both-ends and split bolt fastening;

Step 7: steel form diagonal brace installs:Setting type diagonal brace is supported on flooring knot on the billet on the outside of channel-section steel back cord On built-in fitting upper plate on structure;

Step 8: concreting:Concreting is carried out to reinforced concrete shear wall, and conserves shaping;

Step 9: form removal and built-in fitting recovery:After reinforced concrete shear wall intensity reaches demoulding strength requirement, two are removed Side steel form, and the built-in fitting on floor construction is reclaimed, related hole backfills cement mortar.

As preferred:In the step 1, prefabricated component is formed, prefabricated component by prefabricated-member mould joints cement mortar Mould includes mold side mould, plug-in side form, prefabricated component reinforcing bar fixing bolt, mould side form and mold bottom die and formed.

The invention has the characteristics that and beneficial effect:

(1) positioning supporting frame during using vertical ladder muscle and horizontal ladder muscle as shear force wall reinforcing steel bar cage colligation, and Even laying protective layer thickness positioning prefabricated component, reinforced concrete shear wall knot is formed using the big punching block one-piece casting of combined type Structure.

(2) positioning prefabricated component is made by concrete and reinforcing bar by prefabricated-member mould used in, and the mould has Plug-in side form and with neck bed die, reinforcing bar is bolted among positioning prefabricated component, the shaping of prefabricated component one-time-concreting, mould Installation combination is convenient, and the demoulding is rapid.

(3) groove positioned on prefabricated component is caught in horizontal and vertical distributing reinforcement, ensures simultaneous while protective layer thickness is accurate Make the dowel of reinforced mesh.

(4) joint steel pipe on vertical ladder muscle can improve ladder muscle support intensity, ensure the positioning accurate of reinforcing bar colligation True and firm, its length is shear wall's thickness, and the steel form of both sides is withstood at both ends, accurately ensures protective layer thickness, is passed through in pipe High-strength Screw arbor with nut at both-ends, both sides steel form is fastened by split bolt.

(5) the big punching block of combined type by punching block version, vertical slot steel back is stupefied, horizontal square steel back cord and diagonal brace form, diagonal brace bottom End is supported on floor built-in fitting, and disrance sleeve is provided between the built-in fitting and floor construction, is removed and is repeated after convenient construction Use.

Brief description of the drawings

Fig. 1 is reinforced concrete shear wall formwork concrete construction figure;

Fig. 2 is horizontal ladder muscle and vertical ladder muscle three dimensional structure diagram;

Fig. 3 is vertical ladder concrete steel muscle positioning figure;

Fig. 4 is floor embedded part structure schematic diagram;

Fig. 5 is positioning preform structure schematic diagram;

Fig. 6 is positioning prefabricated-member mould plan;

Fig. 7 is positioning prefabricated component vertical cross section figure.

In figure:The vertical ladder muscle of 1-, the horizontal ladder muscle of 2-, 3- joint steel pipes, 4- horizontal distribution muscle, 5- position eight word muscle, 6- steel forms, 7- square steel back cords, 8- channel-section steel back cords, 9- billets, 10- split bolts, the high-strength Screw arbor with nut at both-ends of 11-, 12- reinforcing bars mix Coagulate native shear wall, 13- floor constructions, 14- built-in fitting upper plates, 15- diagonal braces, 16- steel form pieces, 17- built-in fitting bottom plates, 18- Built-in fitting screw rod, 19- disrance sleeves, 20 built-in fitting fastening bolts, 21- vertical distribution muscle, 22- prefabricated components, 23- prefabricated component steel Muscle, 24- perpendicular grooves, 25- horizontal grooves, 26- mold side moulds, 27- plug-in side forms, 28- prefabricated component reinforcing bar fixing bolts, 29- mould side forms, 30- mold bottom dies.

Embodiment

It is described in further detail below in conjunction with the accompanying drawings and by embodiment to the present invention, following examples are to the present invention Explanation be not limited to following examples.

Fig. 1 is reinforced concrete shear wall formwork concrete construction figure, and Fig. 2 is horizontal ladder muscle and vertical ladder muscle Three dimensional structure diagram, Fig. 3 are vertical ladder concrete steel muscle positioning figures, and Fig. 4 is floor embedded part structure schematic diagram, and Fig. 5 is positioning Preform structure schematic diagram, Fig. 6 are positioning prefabricated-member mould plans, and Fig. 7 is to position prefabricated component vertical cross section figure, reference picture 1 Shown in~7, the work progress is mainly set including built-in fitting on prefabricated component processing and fabricating, floor construction, positioning ladder muscle makes, Reinforcing bar colligation, prefabricated component are installed, steel form is installed, steel form diagonal brace installs, concreting, form removal and built-in fitting reclaim etc..

Certain reinforced concrete shear wall 12 thickness 300mm, thickness of concrete cover 10mm, vertical distribution muscle 21, level point Cloth muscle 4 uses the@200mm of Ф 22;Ladder muscle 1,2 uses Ф 25 using the reinforcement fabrication with cage bar same model, joint steel pipe 3 × 4mm, length are identical with shear wall's thickness;Positioning prefabricated component 22 is 50 × 50mm, groove 24,25 width 25mm, depth 25mm, Prefabricated component reinforcing bar 23 uses the reinforcing bars of Ф 8, and both ends are provided with screw thread, and prefabricated-member mould can produce once 40 prefabricated components, and positioning is in advance Product 22 is in quincunx, spacing 1m on reinforced frame;The word muscle 5 of positioning eight on ladder muscle 1,2 by length 30mm the reinforcing bars of Ф 8 Make, and be welded on ladder muscle corresponding position;The thickness 12mm of steel form 6, width 3m, it is highly contour with shear wall;Square steel is carried on the back Stupefied 7 be 100 × 50 × 6mm, level interval 1.5m, channel-section steel back cord 8 using double flute steel arrangement, channel-section steel size is 100 × 50 × 6mm, vertical interval 1.5m, the size of billet 9 are 100 × 100 × 8mm, and high-strength Screw arbor with nut at both-ends 11 is Ф 20;Diagonal brace 15 uses 100 × 50 × 6mm square steel, both ends set articulated mounting, and the size of the upper lower steel plate 14,17 of floor built-in fitting is 200 × 200 × 8mm, built-in fitting screw rod 18 are Ф 16;Other not most explanations are with reference to actual size requirement.

The main process of above-mentioned built-in positioning prefabricated component reinforced concrete shear wall construction is as follows:

Step 1: the processing and fabricating of prefabricated component 22:According to the reinforced mesh spacing and protective layer of reinforced concrete shear wall 12 Thickness processes the mould of prefabricated component 22, joints cement mortar, and maintenance is molded stand-by;

Step 2: built-in fitting is set on floor construction 13:In lower floor's 13 concrete pouring construction of floor construction, in its steel Built-in fitting corresponding position sets disrance sleeve 19 in ledges, and after the concrete of floor construction 13 reaches design strength, installation is pre-buried Part bottom plate 17, built-in fitting screw rod 18, and fixed by built-in fitting fastening bolt 20 and built-in fitting upper plate 14;

Step 3: positioning ladder muscle makes:Set and determine on vertical ladder muscle 1 according to the vertical interval of horizontal distribution muscle 4 Eight word muscle 5 of position, and horizontal ladder muscle 2 together is set every certain vertical range, according to vertical distribution muscle 21 on horizontal ladder muscle 2 Level interval eight word muscle 5 of positioning are set, vertical ladder muscle 1 and horizontal ladder muscle 2 be staggered to form grid, leads between two panels grid Joint steel pipe 3 is crossed to connect;

Step 4: reinforcing bar colligation:It is right that eight word muscle 5 are positioned according to the reinforcing bar set on vertical ladder muscle 1 and horizontal ladder muscle 2 Vertical distribution muscle 21 and horizontal distribution muscle 4 are positioned, colligation;

Step 5: prefabricated component 22 is installed:Perpendicular grooves 24 on prefabricated component 22 and horizontal groove 25 are respectively clamped into vertically On distributing reinforcement 21 and horizontal distribution muscle 4, and colligation is firm;

Step 6: steel form 6 is installed:Steel form 6 of the side with square steel back cord 7 is arranged on reinforced concrete shear wall 12 Both sides, the inner side of steel form 6 withstand joint steel pipe 3 and prefabricated component 22, channel-section steel back cord 8 are set in outside steel back stupefied 7, by through High-wall Screw arbor with nut at both-ends 11 and split bolt 10 in joint steel pipe 3 fasten;

Step 7: the diagonal brace of steel form 6 installs:Setting type diagonal brace 15 is supported on building on the billet 9 in the outside of channel-section steel back cord 8 On built-in fitting upper plate 14 in face structure 13;

Step 8: concreting:Concreting is carried out to reinforced concrete shear wall 12, and conserves shaping;

Step 9: form removal and built-in fitting recovery:After the intensity of reinforced concrete shear wall 12 reaches demoulding strength requirement, remove Both sides steel form 6, and the built-in fitting on floor construction is reclaimed, related hole backfills cement mortar.

Claims (2)

1. a kind of construction method of built-in positioning prefabricated component reinforced concrete shear wall, it is characterised in that the built-in positioning is pre- Product reinforced concrete shear wall includes positioning ladder muscle, vertical distribution muscle (21), horizontal distribution muscle (4) and prefabricated component (22), Both sides are provided with the steel form (6) of concreting;The positioning ladder muscle includes vertical ladder muscle (1), horizontal ladder muscle (2), joint steel pipe (3), according to vertical distribution muscle (21) and horizontal distribution muscle on vertical ladder muscle (1) and horizontal ladder muscle (2) (4) lashing location is provided with eight word muscle (5) of positioning;The prefabricated component (22) is provided with perpendicular grooves (24) and horizontal groove (25) vertical distribution muscle (21) and horizontal distribution muscle (4), are respectively clamped into, prefabricated component (22) central spot buries prefabricated component reinforcing bar (23);Comprise the following steps:
Step 1: prefabricated component (22) processing and fabricating:According to the reinforced mesh spacing and protective layer of reinforced concrete shear wall (12) Thickness processes prefabricated component (22) mould, joints cement mortar, and maintenance is molded stand-by;
Step 2: built-in fitting is set on floor construction (13):In lower floor's floor construction (13) concrete pouring construction, in its steel Built-in fitting corresponding position sets disrance sleeve (19) in ledges, after floor construction (13) concrete reaches design strength, installation Built-in fitting bottom plate (17), built-in fitting screw rod (18), and it is fixed by built-in fitting fastening bolt (20) and built-in fitting upper plate (14);
Step 3: positioning ladder muscle makes:Set and determine on vertical ladder muscle (1) according to the vertical interval of horizontal distribution muscle (4) Eight word muscle (5) of position, and horizontal ladder muscle (2) together is set every certain vertical range, divide on horizontal ladder muscle (2) according to vertical The level interval of cloth muscle (21) sets eight word muscle (5) of positioning, and vertical ladder muscle (1) and horizontal ladder muscle (2) are staggered to form grid, Connected between two panels grid by joint steel pipe (3);
Step 4: reinforcing bar colligation:Eight word muscle (5) are positioned according to the reinforcing bar set on vertical ladder muscle (1) and horizontal ladder muscle (2) Vertical distribution muscle (21) and horizontal distribution muscle (4) are positioned, colligation;
Step 5: prefabricated component (22) is installed:Perpendicular grooves (24) on prefabricated component (22) and horizontal groove (25) are respectively clamped into On vertical distribution muscle (21) and horizontal distribution muscle (4), and colligation is firm;
Step 6: steel form (6) is installed:Steel form (6) of the side with square steel back cord (7) is arranged on reinforced concrete shear wall (12) both sides, steel form (6) inner side withstand joint steel pipe (3) and prefabricated component (22), set channel-section steel to carry on the back in outside steel back stupefied (7) Stupefied (8), by being fastened through the high-wall Screw arbor with nut at both-ends (11) in joint steel pipe (3) and split bolt (10);
Step 7: steel form (6) diagonal brace installs:Setting type diagonal brace (15) supports on billet (9) on the outside of channel-section steel back cord (8) In on the built-in fitting upper plate (14) on floor construction (13);
Step 8: concreting:Concreting is carried out to reinforced concrete shear wall (12), and conserves shaping;
Step 9: form removal and built-in fitting recovery:After reinforced concrete shear wall (12) intensity reaches demoulding strength requirement, two are removed Side steel form (6), and the built-in fitting on floor construction is reclaimed, related hole backfills cement mortar.
2. construction method according to claim 1, it is characterised in that in the step 1, prefabricated component (22) is by prefabricated Part mould joints cement mortar and formed, prefabricated-member mould include mold side mould (26), plug-in side form (27), prefabricated component steel Muscle fixing bolt (28), mould side form (29) and mold bottom die (30) are formed.
CN201610356408.1A 2016-05-25 2016-05-25 Built-in positioning prefabricated component reinforced concrete shear wall and construction method CN105888108B (en)

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CN105888108B true CN105888108B (en) 2018-02-02

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CN106522273B (en) * 2016-10-17 2019-02-05 上海建工一建集团有限公司 Reinforcing bar posture erecting device and its construction method
CN108756452B (en) * 2018-04-16 2020-06-02 中国二十冶集团有限公司 Comprehensive construction method for C-shaped closed stock ground reinforced concrete retaining wall
CN108843016A (en) * 2018-06-27 2018-11-20 中国冶集团有限公司 Shear wall formwork inner bracing strip and tension rib combined type component and method
CN108656317A (en) * 2018-07-17 2018-10-16 芜湖芬特勘测服务有限公司 A kind of assembled architecture wall manufacture mold
CN109024987A (en) * 2018-08-21 2018-12-18 中冶建工集团有限公司 Construction method is poured after a kind of toilet shear wall
CN109208790B (en) * 2018-09-29 2020-08-11 温州建设集团有限公司 Single-side formwork erecting construction method for arc shear wall

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CN105544801A (en) * 2016-01-28 2016-05-04 湖南大学 Bolted connection technique for prefabricated large plate shear wall provided with concealed bracing and construction method
CN205875473U (en) * 2016-05-25 2017-01-11 中大建设股份有限公司 Built -in location prefab reinforced concrete shear wall

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