CN101736893A - Overhanging type scaffold supporting system - Google Patents

Overhanging type scaffold supporting system Download PDF

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Publication number
CN101736893A
CN101736893A CN200910311600A CN200910311600A CN101736893A CN 101736893 A CN101736893 A CN 101736893A CN 200910311600 A CN200910311600 A CN 200910311600A CN 200910311600 A CN200910311600 A CN 200910311600A CN 101736893 A CN101736893 A CN 101736893A
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CN
China
Prior art keywords
encorbelmenting
type scaffold
overhanging type
floor
bracketed
Prior art date
Application number
CN200910311600A
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Chinese (zh)
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CN101736893B (en
Inventor
王义山
焦先宝
李国明
孙辉连
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通广建工集团有限公司
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Priority to CN2009103116009A priority Critical patent/CN101736893B/en
Publication of CN101736893A publication Critical patent/CN101736893A/en
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Publication of CN101736893B publication Critical patent/CN101736893B/en

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Abstract

The invention provides an overhanging type scaffold supporting system capable of solving the problems that an overhanging type scaffold can not be supported and has potential safety hazards in the prior art. The overhanging type scaffold supporting system comprises a floor plate and an outer wall body of a building, and a plurality of overhanging beams passing through the outer wall body, wherein each overhanging beam is divided into a cantilever part extending out of the outer wall body and a fixed part fixed on the floor plate, the scaffold is arranged on the cantilever parts, and the length of each fixed part is at least 1.5 times of that of each cantilever part. The invention provides a normalized and standardized overhanging type scaffold supporting system which can be adapt to the construction of the overhanging type scaffold for the outer walls of various high-rise buildings, has the characteristics of factory and standardized fabrication, flexible use, high construction efficiency, reliable installation quality and high safety, and effectively ensures the quality of the construction technology of the overhanging type scaffold for the high-rise buildings.

Description

Overhanging type scaffold supporting system

Technical field

The invention belongs to technical field of buildings, specifically, relate to a kind of overhanging type scaffold supporting system.

Background technology

Along with further developing of urbanization, the quantity of highrise building is more and more, requirement and pertinent regulations according to national regulation (JGJ130-2001) " building operations fastener type steel pipe scaffold technical specification of security ", the overhanging scaffold of external wall of high-rise building is at depth of building during greater than 30m, must take the overhanging scaffold segmentation to set up, every section scaffolding height is no more than 20m, to guarantee construction safety.When constructing needs builder's jack layer, how builder's jack solves the support problem of builder's jack, and guarantees construction safety, then is the problem that the present invention faced.

Summary of the invention

The invention provides a kind of overhanging type scaffold supporting system, what can solve that prior art exists can't support builder's jack, has the problem of potential safety hazard.

For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:

A kind of overhanging type scaffold supporting system, the floor and the outer body of wall that comprise building, also comprise some beams of encorbelmenting that pass described outer body of wall, each described beam of encorbelmenting is divided into bracketed part that stretches out described outer body of wall and the standing part that is fixed on the described floor, described scaffold is set on described bracketed part, and described standing part length is 1.5 times of described bracketed part at least.

In technique scheme of the present invention, also have following technical characterictic: corresponding each described beam of encorbelmenting, on described floor, be provided with the fixing card of two embedded bars at least, the standing part of the described beam of encorbelmenting fixedly fastens on described floor by described.

Further, described fixedly card is the U type, adopts the reinforcing bar of Φ 16~18mm, after building operations finishes, needs the part of exposing slab surfaces is cut away behind the dismounting scaffold.

Further, can also be when building the floor layer of corresponding builder's jack layer, default bolt hole in this floor, adopt each beam of encorbelmenting of bolt, specifically, corresponding each described beam of encorbelmenting is provided with two set bolts at least on the described floor, the standing part of the described beam of encorbelmenting is bolted on the described floor by described.

Further, for good fixed support scaffold, the bracketed part of each described beam of encorbelmenting is provided with two fixedly iron angles that are used for fixing described scaffold, and this fixedly is made up of with the vertical reinforcing bar that is connected with this horizontal steel plate the horizontal steel plate of full weld on the described beam of encorbelmenting at the iron angle.

Further, in order to reach better intensity, under the prerequisite of balanced cost, the distance between the fixedly iron angle on the adjacent described beam of encorbelmenting is 1.3~1.6m, distance between the fixedly iron angle on the same described beam of encorbelmenting is 1.0~1.2m, makes support system realize regularization, standardization.

Further, draw off-load in order to hang, the bracketed part end of the described beam of encorbelmenting is provided with to hang and draws wire rope, be provided with draw ring in bracketed part end bottom, this hangs the draw ring that draws wire rope one end to connect the described beam end of encorbelmenting, and the other end is connected on the described outer body of wall, outside on the body of wall according to the scaffold advance, reserve the wire rope fixing hole outside on the body of wall, the two ends of wire rope all tighten by flower basket bolt.

Further, describedly hang that to draw wire rope and described angle of encorbelmenting between the beam be 60~70 °, guaranteed the intensity of the support scaffolding of bracketed part.

Further, described wire rope adopts the reinforcing bar of Φ 14~16mm.

In order to realize more standardized support system, the described beam of encorbelmenting is selected 16~No. 18 i iron or channel-section steel for use, is brushed with chequered with black and white paint on the described beam of encorbelmenting, and is different from the cross bar in the scaffold.

When the design overhanging type scaffold supporting system, at first calculate the antiskid bearing capacity of flexural members such as vertical, horizontal horizon bar and connection fastener, the Calculation on stability of vertical rod, the intensity of wall connecting rod spare, stability and bonding strength calculate, encorbelment beam i iron intensity, Calculation on stability are hung Force Calculation of drawing wire rope etc.

Scaffold on the bracketed part of beam of encorbelmenting is set up by double, the vertical rod advance is not more than 1.5 meters, transfer is not more than 1.2 meters, the leger step pitch is not more than 1.8 meters, the beam of encorbelmenting is selected i iron or channel-section steel more than No. 16 for use, along the skin periphery, 1.5 meters of spacings, the beam of encorbelmenting at the place, negative and positive angle of building is abnormally-structured (as shown in Figure 1); The tailbeam of encorbelmenting selects for use Φ 16 above reinforcing bars to be anchored on the engineering structures, and anchor point is not less than 2, and the beam front end of encorbelmenting is selected for use Φ 14 above wire rope to be fixed on to hang on the structure and drawn off-load.

The encorbelment jib-length of beam of balcony place should add balcony width, and balcony can not be as the anchor point of the beam of encorbelmenting.

Compared with prior art, advantage of the present invention and good effect are:

Characteristics and national relevant specification and pertinent regulations according to highrise building, the invention provides a kind of standardization, standardized high-rise overhanging type scaffold supporting system, according to batch production, standardization, the principle of regularization, according to construction drawing, the i iron of encorbelmenting (or channel-section steel) with support system, hang oneself and draw wire rope, the fixing card of the embedded bar of encorbelmenting adopts the steel scrap muscle processing and fabricating on the building site, it can adapt to the construction of various external wall of high-rise building overhanging scaffolds, has the making batch production, standardization, use flexibly, the efficiency of construction height, installation quality is reliable, safe characteristics effectively guarantee the quality of highrise building overhanging scaffold construction technology.

The overhanging type scaffold supporting system of regularization like this, the processing of can in factory, finalizing the design, process velocity is fast, size is accurate, reliable in quality, installation quality are good, can effectively guarantee the quality of scaffold construction technology, has highly application value.

Description of drawings

Fig. 1 is an overall structure schematic diagram of the present invention;

Fig. 2 is a wherein structural representation of encorbelmenting beam of the present invention;

Fig. 3 is the fixing partial enlarged drawing of Ka Chu of reinforcing bar of beam of encorbelmenting;

Fig. 4 is the partial enlarged drawing at I place among Fig. 2;

Symbol among the figure and explanation thereof:

1, floor; 2, outer body of wall; 3, semi girder; 3-1, bracketed part; 3-2, standing part; 4, scaffold; 5, the fixing card of reinforcing bar; 6, fixing iron angle; 6-1, horizontal steel plate; 6-2, vertical reinforcing bar; 7, wire rope; 7-1, draw ring; L 1, bracketed part length; L 2, standing part length; α, hang and draw wire rope and the angle between the beam of encorbelmenting.

The specific embodiment

The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.

As shown in Figure 1, the overall structure vertical view of the overhanging type scaffold supporting system in a kind of highrise building;

As shown in Figure 2, this system comprises the floor 1 and the outer body of wall 2 of building, also comprises some beams 3 of encorbelmenting that pass described outer body of wall 2, and the described beam 3 of encorbelmenting is selected i iron for use No. 16, is brushed with chequered with black and white paint on the described beam 3 of encorbelmenting, to show obvious difference.Each described beam 3 of encorbelmenting is divided into bracketed part 3-1 that stretches out described outer body of wall 3 and the standing part 3-2 that is fixed on the described floor 1, on described bracketed part 3-1 exterior wall scaffold 4 is set, described bracketed part 3-1 length L 1Be 1.3m, described standing part 3-2 length L 2Being 1.95m, is 1.5 times of bracketed part, to guarantee the support strength of bracketed part 3-1.The encorbelment jib-length of beam 3 of balcony place should add balcony width, and balcony can not be as the anchor point of the beam 3 of encorbelmenting.Encorbelment at place, the negative and positive angle of building be set to abnormally-structured (as shown in Figure 1) of beam 3;

Corresponding each described beam 3 of encorbelmenting is provided with the fixing card 5 of two embedded bars on described floor 1, the standing part 3-2 of the described beam 3 of encorbelmenting is fixed on the described floor 1 by described fixedly card 5.As shown in Figure 3, the part that described fixedly card 5 exposes floor 1 surface is the U type, adopts the reinforcing bar of Φ 16mm, after building operations finishes, will expose the part of slab surfaces behind the dismounting scaffold 4 and cut away.

As Fig. 2 and shown in Figure 4, for good fixed support scaffold 4, the bracketed part 3-1 of each described beam 3 of encorbelmenting is provided with two fixedly iron angles 6 that are used for fixing described scaffold 4, so that the double scaffold 4 of setting up, this fixedly is made up of with the vertical reinforcing bar 6-2 that is connected with this horizontal steel plate 6-1 the horizontal steel plate 6-1 of full weld on the described beam 3 of encorbelmenting at iron angle 6.Vertically reinforcing bar 6-2 adopts the reinforcement fabrication of Φ 25mm, and the specification of horizontal steel plate 6-1 is 100 * 100 * 10 (unit is mm); In order to reach support strength, under the prerequisite of balanced cost, the distance between the fixedly iron angle 5 on the adjacent described beam 3 of encorbelmenting is 1.5m, and the distance between the fixedly iron angle 5 on the same beam 3 of encorbelmenting is 1.2m, makes support system realize regularization, standardization.

Shown in Fig. 2 and 4, draw off-load in order to hang, the bracketed part 3-1 end of the described beam 3 of encorbelmenting is provided with to hang and draws wire rope 7, described wire rope adopts the reinforcing bar of Φ 14~16mm, be provided with the draw ring 7-1 of the reinforcement fabrication more than the Φ 16mm in bracketed part 3-1 end bottom, this hangs the draw ring 7-1 that draws wire rope 7 one ends to connect described beam 3 ends of encorbelmenting, the other end is connected on the described outer body of wall 2, outside on the body of wall 2 according to scaffold 4 advances, reserve the wire rope fixing hole outside on the body of wall 2, the two ends of wire rope all tighten by flower basket bolt.

Hanging and drawing wire rope 7 and the described angle α that encorbelments between the beam 3 is 60 °, has guaranteed the intensity of the support scaffolding of bracketed part.

Certainly, can also be when building the floor layer of corresponding builder's jack layer, default bolt hole in this floor, adopt each beam of encorbelmenting of bolt, specifically, corresponding each described beam of encorbelmenting, described floor is provided with two set bolts, and the standing part of the described beam of encorbelmenting is bolted on the described floor by described.Like this, cut the operation of fixing card with regard to not needing.

When constructing needs builder's jack layer, at first on slab form, emit the encorbelment position of the fixing card of the position line, reinforcing bar of beam of per pass according to drawing and the scheme of encorbelmenting, during the colligation floor bar the fixing card of pre-buried U shaped steel muscle is welded together confirmation after-pouring concrete with floor bar.Colligation exterior wall reinforcing bar and when building the exterior wall concrete is reserved the hole in the encorbelment position of beam of per pass, and top is reserved tying up and drawn the wire rope hole.

The i iron of the typing processing beam of encorbelmenting is placed in corresponding position, passes reinforcing bar and fixedly fasten, at the anchor point place with timber wedge with the space wedging; Perhaps adopt the bolt beam of encorbelmenting.

The above only is preferred embodiment of the present invention, is not to be the restriction of the present invention being made other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solution of the present invention according to technical spirit of the present invention.

Claims (10)

1. overhanging type scaffold supporting system, the floor and the outer body of wall that comprise building, it is characterized in that: also comprise some beams of encorbelmenting that pass described outer body of wall, each described beam of encorbelmenting is divided into bracketed part that stretches out described outer body of wall and the standing part that is fixed on the described floor, described scaffold is set on described bracketed part, and described standing part length is 1.5 times of described bracketed part at least.
2. overhanging type scaffold supporting system according to claim 1, it is characterized in that: corresponding each described beam of encorbelmenting, at least be provided with the fixing card of two embedded bars on described floor, the standing part of the described beam of encorbelmenting fixedly fastens on described floor by described.
3. overhanging type scaffold supporting system according to claim 2 is characterized in that: described fixedly card is the U type, adopts the reinforcing bar of Φ 16~18mm.
4. overhanging type scaffold supporting system according to claim 1 is characterized in that: corresponding each described beam of encorbelmenting, be provided with two set bolts on the described floor at least, and the standing part of the described beam of encorbelmenting is bolted on the described floor by described.
5. overhanging type scaffold supporting system according to claim 1, it is characterized in that: the bracketed part of each described beam of encorbelmenting is provided with two fixedly iron angles that are used for fixing described scaffold, and this fixedly is made up of with the vertical reinforcing bar that is connected with this horizontal steel plate the horizontal steel plate of full weld on the described beam of encorbelmenting at the iron angle.
6. overhanging type scaffold supporting system according to claim 5 is characterized in that: the distance between the fixedly iron angle on the adjacent described beam of encorbelmenting is 1.3~1.6m, and the distance between the fixedly iron angle on the same described beam of encorbelmenting is 1.0~1.2m.
7. overhanging type scaffold supporting system according to claim 1, it is characterized in that: the bracketed part end of the described beam of encorbelmenting is provided with to hang and draws wire rope, be provided with draw ring in bracketed part end bottom, this hangs the draw ring that draws wire rope one end to connect the described beam end of encorbelmenting, the other end is connected on the described outer body of wall, and the two ends of wire rope all tighten by flower basket bolt.
8. overhanging type scaffold supporting system according to claim 7 is characterized in that: describedly hang that to draw wire rope and described angle of encorbelmenting between the beam be 60~70 °.
9. overhanging type scaffold supporting system according to claim 7 is characterized in that: described wire rope adopts the reinforcing bar of Φ 14~16mm.
10. overhanging type scaffold supporting system according to claim 1 is characterized in that: the described beam of encorbelmenting is 16~No. 18 i iron or channel-section steel, is brushed with chequered with black and white paint on the described beam of encorbelmenting.
CN2009103116009A 2009-12-16 2009-12-16 Overhanging type scaffold supporting system CN101736893B (en)

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Application Number Priority Date Filing Date Title
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102296798A (en) * 2011-06-14 2011-12-28 中国建筑第五工程局有限公司 Bracket bearing structure at external corner part of segmented erection type scaffold
CN102444271A (en) * 2011-11-01 2012-05-09 中建三局建设工程股份有限公司 Suspended scaffolding with cast-in-place concrete structure
CN102454295A (en) * 2010-10-18 2012-05-16 五冶集团上海有限公司 Method for constructing large-sized cantilever beam at ultrahigh position
CN102650147A (en) * 2012-05-04 2012-08-29 中天建设集团有限公司 Cantilever beam supporting system
CN102777022A (en) * 2012-08-03 2012-11-14 汕头市建筑工程总公司 Postpositional double-steel-channel overhanging scaffold and construction method thereof
CN102817467A (en) * 2012-08-15 2012-12-12 中建钢构有限公司 Operating platform for high-altitude installation of steel structure
CN103031947A (en) * 2012-12-27 2013-04-10 青建集团股份公司 Construction method for inclined tensioning reinforcing bar type and overhanging section steel scaffold
CN103046753A (en) * 2011-10-13 2013-04-17 永升建设集团有限公司 Overhanging base frame construction method adopting U-shaped fastener
CN103321438A (en) * 2012-03-21 2013-09-25 上海建工五建集团有限公司 Large cantilever unit type protective canopy suitable for high-rise building construction
CN103821335A (en) * 2014-02-28 2014-05-28 中天建设集团有限公司 High-altitude long-span cantilever formwork
CN105298100A (en) * 2015-10-22 2016-02-03 广州市恒盛建设工程有限公司 Construction method of cantilever construction platform with ultrahigh cast-in-place flaring structure in cylindrical building
CN103334580B (en) * 2013-07-25 2016-03-30 北京建工博海建设有限公司 Section steel tripod in a kind of overhanging scaffold and connection system for guide rail
CN106592948A (en) * 2016-12-19 2017-04-26 山东万鑫建设有限公司 Design and construction technology of self-stabilized section steel suspended scaffold

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DE3401906A1 (en) * 1984-01-20 1985-08-01 Wolfgang Baumann Apparatus for the suspended fastening of a scaffold element
EP0960993A1 (en) * 1998-03-31 1999-12-01 Poul Jensen A suspended scaffold and a method of replacing windows using a suspended scaffold
JP2000328777A (en) * 1999-05-13 2000-11-28 Otis Elevator Co Elevator installing scaffold structure
CN201169907Y (en) * 2008-03-18 2008-12-24 启东建筑集团有限公司 Inclined strut type suspension supporting rack
CN201169908Y (en) * 2008-03-18 2008-12-24 启东建筑集团有限公司 Inclined pull type suspension supporting rack
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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102454295A (en) * 2010-10-18 2012-05-16 五冶集团上海有限公司 Method for constructing large-sized cantilever beam at ultrahigh position
CN102454295B (en) * 2010-10-18 2016-06-01 五冶集团上海有限公司 Large-scale cantilever beam at ultrahigh position construction method
CN102296798A (en) * 2011-06-14 2011-12-28 中国建筑第五工程局有限公司 Bracket bearing structure at external corner part of segmented erection type scaffold
CN103046753A (en) * 2011-10-13 2013-04-17 永升建设集团有限公司 Overhanging base frame construction method adopting U-shaped fastener
CN102444271A (en) * 2011-11-01 2012-05-09 中建三局建设工程股份有限公司 Suspended scaffolding with cast-in-place concrete structure
CN102444271B (en) * 2011-11-01 2015-12-09 中建三局建设工程股份有限公司 Suspended scaffolding
CN103321438B (en) * 2012-03-21 2016-04-06 上海建工五建集团有限公司 A kind of modular protection marguise of large cantilever being applicable to high-building construction
CN103321438A (en) * 2012-03-21 2013-09-25 上海建工五建集团有限公司 Large cantilever unit type protective canopy suitable for high-rise building construction
CN102650147A (en) * 2012-05-04 2012-08-29 中天建设集团有限公司 Cantilever beam supporting system
CN102777022A (en) * 2012-08-03 2012-11-14 汕头市建筑工程总公司 Postpositional double-steel-channel overhanging scaffold and construction method thereof
CN102817467B (en) * 2012-08-15 2015-05-13 中建钢构有限公司 Operating platform for high-altitude installation of steel structure
CN102817467A (en) * 2012-08-15 2012-12-12 中建钢构有限公司 Operating platform for high-altitude installation of steel structure
CN103031947A (en) * 2012-12-27 2013-04-10 青建集团股份公司 Construction method for inclined tensioning reinforcing bar type and overhanging section steel scaffold
CN103334580B (en) * 2013-07-25 2016-03-30 北京建工博海建设有限公司 Section steel tripod in a kind of overhanging scaffold and connection system for guide rail
CN103821335A (en) * 2014-02-28 2014-05-28 中天建设集团有限公司 High-altitude long-span cantilever formwork
CN105298100A (en) * 2015-10-22 2016-02-03 广州市恒盛建设工程有限公司 Construction method of cantilever construction platform with ultrahigh cast-in-place flaring structure in cylindrical building
CN106592948A (en) * 2016-12-19 2017-04-26 山东万鑫建设有限公司 Design and construction technology of self-stabilized section steel suspended scaffold

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