CN106930522A - A kind of external scaffolding drawknot node structure and its construction method - Google Patents

A kind of external scaffolding drawknot node structure and its construction method Download PDF

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Publication number
CN106930522A
CN106930522A CN201710302420.9A CN201710302420A CN106930522A CN 106930522 A CN106930522 A CN 106930522A CN 201710302420 A CN201710302420 A CN 201710302420A CN 106930522 A CN106930522 A CN 106930522A
Authority
CN
China
Prior art keywords
external scaffolding
leg
metope
drawknot node
body structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710302420.9A
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Chinese (zh)
Inventor
隋海涛
锦晓晨
梁荣峰
张伯川
王宁宁
王进平
朱筱理
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Construction Second Engineering Bureau Co Ltd
Original Assignee
Second Construction Engineering Co Ltd of China Construction Second Engineering Bureau Co Ltd East China Branch
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Second Construction Engineering Co Ltd of China Construction Second Engineering Bureau Co Ltd East China Branch filed Critical Second Construction Engineering Co Ltd of China Construction Second Engineering Bureau Co Ltd East China Branch
Priority to CN201710302420.9A priority Critical patent/CN106930522A/en
Publication of CN106930522A publication Critical patent/CN106930522A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • E04G5/00Component parts or accessories for scaffolds
    • E04G5/04Means for fastening, supporting, or bracing scaffolds on or against building constructions
    • E04G5/046Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on walls

Abstract

The present invention proposes a kind of external scaffolding drawknot node structure, comprising constructure body structure and external scaffolding, also comprising zinc-coated flat steel sheet, zinc-coated flat steel sheet is embedded in constructure body structure, external scaffolding includes wall connecting rod, and zinc-coated flat steel sheet is connected with wall connecting rod by diesis fastener.The external scaffolding drawknot node structure causes that external scaffolding is more consolidated, simple structure, construction are simple, and do not influence secondary structure to construct, it is to avoid the hidden danger of seepage.The invention allows for a kind of construction method of external scaffolding drawknot node structure.

Description

A kind of external scaffolding drawknot node structure and its construction method
Technical field
The present invention relates to architectural engineering technology neighborhood, more particularly to a kind of external scaffolding drawknot node structure and its construction party Method.
Background technology
In architectural engineering neighborhood, for convenience of operative and solving the problems, such as vertically and horizontally to transport, it will usually building Beyond the region of objective existence encloses sets up external scaffolding.At present, external scaffolding has been used widely.In order that external scaffolding is firm, external scaffolding quilt It is connected to wall.For connected mode, the way of prior art is pre-buried steel member, such as steel bushing in wall casting concrete Pipe or claw type steel member, as the drawknot node of external scaffolding.If using steel sleeve, steel sleeve will be perpendicular to metope and distance Wall top certain distance, when building scaffold, wall connecting rod uses fixed mount by wall connecting rod respectively through steel sleeve and in wall both sides Vertically fixed relative to metope.If it is desired that using the claw-shaped sections of claw type steel member, claw type steel member to be embedded in wall and apart from wall Top certain distance, one piece of surface of steel plate being only connected with claw-shaped sections end is exposed to metope, when building scaffold, wall connecting rod End be welded and fixed therewith.It is easy construction, pre-buried steel sleeve or claw type steel member can not protrude from metope, at most and wall Face is concordant.
But there are some drawbacks in above-mentioned existing connected mode.Fixed mount is coordinated to fix wall connecting rod with pre-buried steel sleeve When, on the one hand to be used component more, high cost;On the other hand, the more difficult control of the depth of parallelism of the multiple pre-buried steel sleeves of a row, Cause the wall connecting rod depth of parallelism to be frequently necessary to correction and build requirement to meet scaffold;Furthermore, it is necessary to fill steel after dismounting scaffold Inside pipe casing makes it complete to repair metope, but workload is easy to greatly and after repairing infiltration after this repairing, influences wall construction Water resistance.With claw type steel member by being welded to connect during fixed wall connecting rod, on the one hand, the professional welder of needs carries out welding behaviour Make, and need support staff to assist welder that wall connecting rod is held up in welding process, waste time and energy and take a lot of work, butt welding is wanted when removing scaffold The place of connecing is cut, and cutting quantity is big;On the other hand, after scaffold is removed, claw type steel member is exposed at surface of steel plate at metope also Can influence the follow-up plastering construction of metope, the later stage at this metope coating material it is easy to fall off, be unfavorable for keeping the outward appearance of metope finished product.
The content of the invention
To solve the problems, such as prior art, the present invention proposes a kind of improved external scaffolding drawknot node structure and its applies Work method.The external scaffolding drawknot node structure causes that external scaffolding has preferable stability, and simple structure, construction are simple, and And do not influence secondary structure to construct, and avoid the hidden danger of follow-up patch work and seepage.
To achieve the above object, external scaffolding drawknot node structure of the invention includes constructure body structure and out-mould scaffold Frame, also comprising antirust band steel, antirust band steel is embedded in constructure body structure, and external scaffolding includes wall connecting rod, antirust band steel It is connected by diesis fastener with wall connecting rod.
Further, antirust band steel is L-type, and comprising the first leg and the second leg, the first leg is perpendicular to the second leg.
Further, the first leg is embedded in constructure body structure, and parallel to the metope of constructure body structure, the Two legs are located on the upper surface of constructure body structure, perpendicular to the metope of constructure body structure, and are partially extended through and are built Build the metope of thing agent structure.
Further, the second leg is provided with 2 bolts hole, and the bolt of diesis fastener is extended there through and fixed, so that Second leg is fixedly connected with diesis fastener.
Further, the wall connecting rod of external scaffolding is withstood on the metope of constructure body structure by wall end.
The present invention also proposes a kind of construction method of external scaffolding drawknot node structure, comprises the following steps:
1. the pre-buried antirust band steel in constructure body structure;
2. wall connecting rod construction, wall connecting rod is withstood on the metope of constructure body structure by wall end;
3. external scaffolding support body is set up, hangs up safety net;
4. reinforced mesh is set on external scaffolding upper berth;
5. inspect for acceptance;
6. detected during use and safeguarded;
7. external scaffolding is removed, cuts off antirust band steel along the metope of constructure body structure.
Further, step 1. in, antirust band steel is embedded on the beam of constructure body structure, exposes concrete surface Cannot be greater than 20mm.
Further, antirust band steel includes orthogonal first leg and the second leg, and the first leg is embedded in building body junction In structure, parallel to the metope of constructure body structure, the second leg is located on the upper surface of constructure body structure, perpendicular to building The metope of thing agent structure is built, and partially extends through the metope of building main body.
Further, diesis fastener is respectively adopted nut screwing clamping, and screw-down torque is 40-65Nm.
Further, step 7. in, after wall connecting rod of dismantling, body junction is stretched out using oxygen-acetylene excision antirust band steel The part of structure, using cement mortar repairing preventing and treating corrosion after the completion of cutting.
Above-mentioned external scaffolding drawknot structure is by the way of soft drawn is resisted stubbornly, it is ensured that the stability of external scaffolding and construction Security.In addition, therefore do not influence secondary structure to construct without removing as the antirust band steel of drawknot node, and avoid because The hidden leakage defect that box out is caused.
Brief description of the drawings
The present invention is made below in conjunction with the accompanying drawings further describe and illustrate.
Fig. 1 is the schematic diagram of the external scaffolding drawknot node structure of first-selected implementation method of the invention.
Fig. 2 is the schematic diagram of the zinc-coated flat steel sheet of external scaffolding drawknot node structure.
Fig. 3 is the schematic diagram of the second leg of zinc-coated flat steel sheet.
Specific embodiment
As shown in figure 1, the external scaffolding drawknot node structure 10 of first-selected implementation method of the invention includes building body junction Structure 1, external scaffolding 2, zinc-coated flat steel sheet 3.Wherein, zinc-coated flat steel sheet 3 in 1 casting concrete of constructure body structure by it is pre-buried its In.
As shown in Figure 2,3, zinc-coated flat steel sheet 3 is made as the drawknot node of external scaffolding using L50*5 zinc-coated flat steel sheets, and it is L Type structure, comprising the first leg 31 and the second leg 32, the first leg 31 is embedded in building main body perpendicular to the second leg 32, the first leg 31 In the concrete of structure 1, and parallel to the metope of constructure body structure 1, the second leg 32 is located at constructure body structure 1 On upper surface, perpendicular to the metope of constructure body structure 1, and the metope of constructure body structure 1 is partially extended through.It is preferred that Ground, every length of leg is 350mm.2 bolt hole 32a, holes center spacing 110mm, control errors are provided with second leg 32 Within 2mm.
As shown in figure 1, external scaffolding 2 includes wall connecting rod 20, one end of wall connecting rod 20 extends to the metope of agent structure 1, And it is against on the metope, meanwhile, the elongated end of wall connecting rod 20 is located at the lower section of the second leg 32 of zinc-coated flat steel sheet 3.In wall connecting rod 20 Bearing of trend on, wall connecting rod 20 partially overlaps with the second leg 32.Wall connecting rod 20 is connected to zinc-coated flat steel sheet by two cruciform fastening for falsework 4 On 3 the second leg 32.The bolt of 2 cruciform fastening for falsework 4 is each passed through the bolt hole 32a on zinc-coated flat steel sheet 3, then with nut screwing clamping, So as to the second leg 32 be fixedly connected with diesis fastener 4.Preferably, the screw-down torque of nut is 40-65Nm, and bolt exposes Length is no less than 10mm.
Being resisted stubbornly on the metope of agent structure 1 by wall end for the wall connecting rod 20 of above-mentioned external scaffolding drawknot node structure 10, plates Zinc band steel 3 holds wall connecting rod 20 in the presence of diesis fastener 4, by way of this soft drawn is resisted stubbornly, it is ensured that out-mould scaffold The stability of frame, it is to avoid potential safety hazard.
The construction technology process of the external scaffolding drawknot node structure 10 is:Pre-buried zinc-coated flat steel sheet → wall connecting rod construction → support body Set up → hang up and detect that maintenances → outrigger is removed, excision is plated during safety net → laying reinforced mesh → inspect for acceptance → use Zinc band steel.
It is zinc-plated on band steel primarily to antirust in this first-selected implementation method, in other embodiments, it is also possible to adopt With the antirust band steel of other materials.An extra benefit is also brought using band steel, after scaffold is removed, as long as wall will be exposed The band steel part in face is cut away with cutting machine, and the part that other are stayed on wall construction is because of band steel thickness very little, the steel being exposed on metope Surface area is very small, has no effect on the secondary construction of wall construction, wall of for example being laid bricks on surface on the wall, carry out on metope it is outer Layer material coating etc..
The step of construction technology process in first-selection implementation method of the invention is described below in detail:
Pre-buried zinc-coated flat steel sheet:
First, zinc-coated flat steel sheet drawknot node is made, drawknot node is made using zinc-coated flat steel sheet L50*5, and length is 350mm, outer Two bolts hole are opened in frame (i.e. external scaffolding) side, and bolt hole is identical with cruciform fastening for falsework screw diameter, hole center spacing 110mm, Within 2mm, perforate should ensure that mellow and full, smooth control errors.
The pre-buried zinc-coated flat steel sheet in constructure body structure.Every layer of setting band steel formula drawknot node of external scaffolding, it is therefore an objective to be With cruciform fastening for falsework wall connecting rod is set to be reliably connected with zinc-coated flat steel sheet drawknot node.Force Calculation and analysis are first carried out before construction, by counting Calculate result and determine whether drawknot node meets construction parameter.Before agent structure concreting, strict examination & verification architectural working drawing and Structural working drawing, electronic composition arrangement, and reasonably optimizing are carried out by pre-buried point position.After determining the pre-buried position of drawknot node, in master Body structure reinforcing bars side bundle finishes, after the completion of model sheetinstallat, the snap the line positioning in template, zinc-coated flat steel sheet need to be embedded on beam, expose Concrete surface cannot be greater than 20mm.Protection is should be noted that during form removal, with anti-tamper.
Wall connecting rod is constructed:
After the completion of zinc-coated flat steel sheet drawknot node is pre-buried, be connected with wall connecting rod using diesis fastener, wall connecting rod by wall end top On the metope of constructure body structure, drawknot node soft drawn is resisted stubbornly, and cruciform fastening for falsework bolt is through band steel drawknot node preformed hole (i.e. spiral shell Keyhole), the screw-down torque of nut is 40-65Nm, and after nut screwing clamping, bolt exposed length is no less than 10mm.
Set up external scaffolding support body and hang up safety net:
Scaffold building step pitch 1.8m, vertical rod advance is not more than 1.5m, transfer 0.8m.Consider frame body safe and after Continue moulding easy construction to determine that vertical rod is not away from main wall spacing (being preferably greater than 300mm) in scaffold.Railing and foot guard plate The inner side of outer vertical rod all should be ridden upon.Every section of builder's jack every layer of shield of all setting up defences between vertical rod and main body in outrigger by floor, protection It is isolated into:Horizontal cross bar Inner chooses plus one layer of soft isolation of horizontal safety net (being located between interior vertical rod and wall).Scaffold every three Layer completely 12 thick red template of paving do hard isolation closing, and remaining often walks laying steel basketry piece.Scaffold board forbids pop one's head in plate, fixation. Builder's jack outside is totally-enclosed with safety net, and string bag bottom is chosen with white, and material selection green is dust-proof, noise isolating fire retardant safety net.Using steel During basketry scaffold board, vertical equity bar is fixed on transverse horizontal bar using right-angle coupler.When vertical rod transfer is less than or equal to 800mm When, the vertical equity steel pipe for often walking snapping on transverse horizontal bar should not be less than 3;When vertical rod transfer is more than 800mm, often walk horizontal 4 are no less than to the vertical equity steel pipe of snapping on horizon bar.The alien invasion bridging of suspension scaffold should continuously set from bottom to top Put, per pass bridging width be no less than 4 across and no more than 7 across and no less than 6m, brace should be at 45 ° with the inclination angle on ground Between~60 °.Wall-connecting piece uses two steps three across setting, in the form of embedded steel tube is on beam.Steel pipe specifications and models should meet Calculate and code requirement.
Inspection and maintenance during use:
Support body is set up after finishing, and organizes management and the Party A's acceptance(check) can to come into operation by project management department, is using process In Inspection and maintenance often should be carried out to support body.Check points for attention:Under general state, it is allowed to have two operation layers while applying Work, every layer of maximum construction loads is 3.0KN/m2.Support body must not overload and use, and must not use load.Support body can only conduct Crosshead, must not be used as formwork-support.Emphasis is answered to check whether junction bolt loosens, whether nut lacks.Inspection and maintenance Formulate special messenger to be responsible for, at least check once weekly, form written process inspection record, pinpoint the problems and safeguard in time, rectification.
Outrigger is removed, excision zinc-coated flat steel sheet:
When outrigger is removed, after wall connecting rod of dismantling, using oxygen-acetylene, the metope excision along constructure body structure is zinc-plated flat The part for stretching out agent structure of steel, using cement mortar repairing preventing and treating corrosion after the completion of cutting.Outrigger is forbidden to remove when removing Two step above wall connecting rods.
Compared with traditional construction technology, the construction method of above-mentioned zinc-coated flat steel sheet drawknot node, using zinc-coated flat steel sheet as outer pin The drawknot node of hand cradle, zinc-coated flat steel sheet on building construction without influence, construct by the hidden leakage defect and workman that box out is caused when reduction is built by laying bricks or stones When remove the potential safety hazard of wall connecting rod, it is light to building structure destruction, be easy to construction, the structure later stage, stifled hole amount was few, material-saving, section About the duration, cost-effective.
Above-mentioned specific embodiment is only described to the preferred embodiment of the present invention, and not to guarantor of the invention Shield scope is defined.On the premise of design concept of the present invention and scope is not departed from, one of ordinary skill in the art According to word description provided by the present invention, accompanying drawing is to the various modifications done by technical scheme, replacement and improves, Protection category of the invention all should be belonged to.Protection scope of the present invention is determined by claim.

Claims (10)

1. a kind of external scaffolding drawknot node structure, comprising constructure body structure and external scaffolding, it is characterised in that also comprising anti- Rust band steel, the antirust band steel is embedded in constructure body structure, and the external scaffolding includes wall connecting rod, the antirust band steel It is connected by diesis fastener with wall connecting rod.
2. external scaffolding drawknot node structure as claimed in claim 1, it is characterised in that the antirust band steel is L-type, comprising the One leg and the second leg, the first leg is perpendicular to the second leg.
3. external scaffolding drawknot node structure as claimed in claim 2, it is characterised in that first leg is embedded in the building In agent structure, and parallel to the metope of the constructure body structure, second leg is located at the building body junction On the upper surface of structure, perpendicular to the metope of the constructure body structure, and the constructure body structure is partially extended through Metope.
4. external scaffolding drawknot node structure as claimed in claim 3, it is characterised in that second leg is provided with 2 bolts Hole, the bolt of the diesis fastener is extended there through and fixed, so as to second leg be fixedly connected with diesis fastener.
5. the external scaffolding drawknot node structure as any one of claim 1-4, it is characterised in that the external scaffolding Wall connecting rod is withstood on the metope of constructure body structure by wall end.
6. a kind of construction method of external scaffolding drawknot node structure as claimed in claim 1, it is characterised in that comprising following step Suddenly:
1. the pre-buried antirust band steel in constructure body structure;
2. wall connecting rod construction, wall connecting rod is withstood on the metope of constructure body structure by wall end;
3. external scaffolding support body is set up, hangs up safety net;
4. reinforced mesh is set on external scaffolding upper berth;
5. inspect for acceptance;
6. detected during use and safeguarded;
7. external scaffolding is removed, cuts off antirust band steel along the metope of constructure body structure.
7. the construction method of external scaffolding drawknot node structure as claimed in claim 6, it is characterised in that in the step 1. In, the antirust band steel is embedded on the beam of constructure body structure, is exposed concrete surface and be cannot be greater than 20mm.
8. the construction method of external scaffolding drawknot node structure as claimed in claim 6, it is characterised in that the antirust band steel bag Containing orthogonal first leg and the second leg, the first leg is embedded in the constructure body structure, parallel to building body junction The metope of structure, the second leg is located on the upper surface of the constructure body structure, perpendicular to the metope of constructure body structure, And partially extend through the metope of building main body.
9. the construction method of external scaffolding drawknot node structure as claimed in claim 8, it is characterised in that the diesis fastener Nut screwing clamping is respectively adopted, screw-down torque is 40-65Nm.
10. the construction method of external scaffolding drawknot node structure as claimed in claim 6, it is characterised in that in the step 7. In, after wall connecting rod of dismantling, the part for stretching out agent structure of antirust band steel is cut off using oxygen-acetylene, water is used after the completion of cutting Cement mortar repairing preventing and treating corrosion.
CN201710302420.9A 2017-05-02 2017-05-02 A kind of external scaffolding drawknot node structure and its construction method Pending CN106930522A (en)

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Application Number Priority Date Filing Date Title
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CN106930522A true CN106930522A (en) 2017-07-07

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1061171A (en) * 1996-08-21 1998-03-03 Hirohito Tominaga Connecting tool of building and scaffold
CN201588398U (en) * 2010-01-07 2010-09-22 中天建设集团有限公司 Novel flat iron wall connector
CN201714060U (en) * 2010-06-26 2011-01-19 国强建设集团有限公司 Wall connecting mechanism of scaffold
CN202073304U (en) * 2011-05-24 2011-12-14 南通十建集团有限公司 Wall-connecting device of scaffold for building construction
CN104675101A (en) * 2015-02-11 2015-06-03 浙江省二建建设集团有限公司 Wall-linking element of scaffold and construction method of wall-linking element
CN105064673A (en) * 2015-07-31 2015-11-18 中铁城市规划设计研究院有限公司 Flat steel scaffold pulling joint structure
CN206722377U (en) * 2017-05-02 2017-12-08 中建二局第二建筑工程有限公司华东分公司 A kind of external scaffolding drawknot node structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1061171A (en) * 1996-08-21 1998-03-03 Hirohito Tominaga Connecting tool of building and scaffold
CN201588398U (en) * 2010-01-07 2010-09-22 中天建设集团有限公司 Novel flat iron wall connector
CN201714060U (en) * 2010-06-26 2011-01-19 国强建设集团有限公司 Wall connecting mechanism of scaffold
CN202073304U (en) * 2011-05-24 2011-12-14 南通十建集团有限公司 Wall-connecting device of scaffold for building construction
CN104675101A (en) * 2015-02-11 2015-06-03 浙江省二建建设集团有限公司 Wall-linking element of scaffold and construction method of wall-linking element
CN105064673A (en) * 2015-07-31 2015-11-18 中铁城市规划设计研究院有限公司 Flat steel scaffold pulling joint structure
CN206722377U (en) * 2017-05-02 2017-12-08 中建二局第二建筑工程有限公司华东分公司 A kind of external scaffolding drawknot node structure

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Inventor after: Sui Haitao

Inventor after: Jin Xiaochen

Inventor after: Liang Rongfeng

Inventor after: Zhang Bochuan

Inventor after: Wang Ningning

Inventor after: Zhu Xiaoli

Inventor after: Wang Jinping

Inventor after: Zhang Shujun

Inventor before: Sui Haitao

Inventor before: Jin Xiaochen

Inventor before: Liang Rongfeng

Inventor before: Zhang Bochuan

Inventor before: Wang Ningning

Inventor before: Wang Jinping

Inventor before: Zhu Xiaoli

TA01 Transfer of patent application right
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Effective date of registration: 20171229

Address after: 450003, Henan, Zhengzhou Jinshui District Garden Road West, agricultural road south 6, 1 units, 22, 2207

Applicant after: The Second Construction Company Of China Construction Second Engineering Bureau

Address before: 210000 Jiangsu city of Nanjing Province along the Yangtze River Industrial Development Zone geguan Road No. 815

Applicant before: China Construction two Bureau Second Construction Engineering Co., Ltd. Huadong branch