CN102733606B - The construction method of High Large Cantilever structure - Google Patents
The construction method of High Large Cantilever structure Download PDFInfo
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- CN102733606B CN102733606B CN201110088550.XA CN201110088550A CN102733606B CN 102733606 B CN102733606 B CN 102733606B CN 201110088550 A CN201110088550 A CN 201110088550A CN 102733606 B CN102733606 B CN 102733606B
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Abstract
The invention discloses a kind of construction method of High Large Cantilever structure, belong to high vacant building Beam-Slab Construction method, especially there is the construction method of moulding large cantilever beam slab.The present invention adopts next structural floor of bridging piece outside to establish and chooses channel-section steel or H profile steel outward, and increase the cast-in-situ concrete together with channel-section steel or H profile steel of structure reversed beam on structure limit, consolidate the stability of shaped steel and bear cantilevered structure transmission load, bottom increases channel-section steel diagonal brace and middle part increases oblique pull channel-section steel, form steel work tripod, erection time crossbeam channel-section steel on steel tripod again, finally on secondary crossbeam channel-section steel, set up common steel tube fastener type support for shuttering, comprehensive load-bearing, bear top to encorbelment all loads of beam slab, structure reversed beam is removed after construction.The invention solves high vacant building long cantilever construction encorbelment long, load large, support system is difficult to the difficult problem selected, be applicable to the outer bridging piece terrain clearance of building at more than 40m, choose the construction of span at the large-scale cantilevered structure of 2.0m ~ 6.0m scope outward.
Description
Art
The invention belongs to high vacant building Beam-Slab Construction method, especially there is the construction method of the high vacant building beam slab of long cantilever construction.
Background technology
At present, along with the high speed development of economic construction and urbanization, the high level of different modeling or super highrise building promptly one flickeringly to be rised sheer from level ground in each big and medium-sized cities, a lot of building is in order to make widely known building individuation and show the rich and varied of moulding, a certain for high-altitude floor or roof encorbelment outside architectural plane by normal employing High Large Cantilever gimmick, make it the significant scenery together that moulding becomes urban architecture.In this design, cantilever part terrain clearance is usually at more than 40m, chooses length outward and reaches 2.0m ~ 6.0m, and it makes, and building is glorious, solid is abundant, majestic appearance is broken out.Simultaneously, the design of these individual characteies is also for the construction of building brings all difficult problems, the feature that its span greatly, highly high, load is large, difficulty is high, by the words that the formwork-support system of conventional method has been come, difficulty is large, and safety factor is not high, and the duration is long, and disposablely to have high input, with high costs.
Summary of the invention
For a difficult problem of the prior art, the object of this invention is to provide a kind of construction method of High Large Cantilever structure, it can ensure construction safety, can ensure workmanship again, can also save construction fund greatly.
The object of the present invention is achieved like this: the construction method of High Large Cantilever structure, comprise conventional assembling reinforcement, install template, under template, support system is set, concreting, the demoulding, the operations such as concrete curing, its special feature is: described form bracing system have employed a kind of construction method of steel girder platform, namely next structural floor place of bridging piece chooses channel-section steel or H profile steel outside establishing at a certain distance according to superstructure load outside, adopt round steel to make three road clips and fix shaped steel, clip through-flooring and Plate Welding are fixed, and increase the cast-in-situ concrete together with channel-section steel or H profile steel of structure reversed beam on structure limit, consolidate the stability of shaped steel and bear cantilevered structure transmission load, bottom increases channel-section steel diagonal brace and middle part increases oblique pull channel-section steel, form steel work tripod, time crossbeam channel-section steel or H profile steel is set up at a certain distance according to structural load again on steel tripod, after construction after the degree of disturbing of deadweight generation is static, finally on secondary crossbeam channel-section steel or H profile steel, set up common steel tube fastener type bracing frame, comprehensive load-bearing, bear top to encorbelment all loads of beam slab, structure reversed beam is removed after construction.Tradition is landed scaffold support system and is changed high-altitude steel girder platform support system into by the method, owing to need not set up the support system of beam slab of encorbelmenting from ground, formwork-support directly falls within firm high-altitude steel girder platform, so can construction technology be simplified, improve efficiency of construction, reduce cost, increase safety factor, reach object of the present invention.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is overhanging type steel layout plan
Fig. 2 is overhanging type steel and time crossbeam channel-section steel or H profile steel schematic diagram
Fig. 3 is the condition of construction schematic diagram of High Large Cantilever structure
Fig. 4 is the organigram of end anchorage round steel
Fig. 5 is the structure reversed beam structural section of anchoring shaped steel
Fig. 6 is the organigram of diagonal brace shaped steel
Fig. 7 is diagonal brace shaped steel and anatomical connectivity organigram
Fig. 8 is diagonal brace shaped steel and overhanging type steel connected node schematic diagram
Fig. 9 is middle part oblique pull shaped steel and anatomical connectivity joint structure schematic diagram
Figure 10 is the layout plan of supporting steel pipe at the bottom of plate
Figure 11 is the layout plan of supporting steel pipe at the bottom of beam
Figure 12 is the organigram of lateral crus hand cradle and anatomical connectivity
Detailed description of the invention
As Fig. 1, shown in 3, the present invention is a kind of High Large Cantilever construction method: by overhanging type steel at a certain distance along architectural appearance horizontally after, weld with round steel (Fig. 4) through-flooring, and pouring structure reversed beam (Fig. 5) is fixed, lay bottom diagonal brace (Fig. 6, 7) weld with overhanging type steel (Fig. 8), lay middle part oblique pull shaped steel (Fig. 9) to weld with diagonal brace, after structural concrete strength meets the demands, shaped steel sets up time crossbeam channel-section steel or H profile steel (Fig. 2) at a certain distance, finally on secondary crossbeam channel-section steel or H profile steel, set up common steel tube fastener type bracing frame (Figure 10, 11), and set up steel pipe scaffold in outside, scaffold adopts built-in fitting to carry out being connected (Figure 12) with structure, guarantee stability.Structure reversed beam is removed after construction.
Claims (1)
1. the construction method of High Large Cantilever structure: comprise assembling reinforcement, install template, under template, support system is set, concreting, the demoulding, concrete curing operation, it is characterized in that: described form bracing system have employed a kind of construction method of steel girder platform, namely next structural floor place of bridging piece chooses channel-section steel or H profile steel outside establishing at a certain distance according to superstructure load outside, adopt round steel to make three road clips and fix shaped steel, the end of clip is outwards bent to form bending segment, three described road clips, front twice are imbedded in underfloor placing of reinforcement mesh sheet in advance, build together with floorslab concrete, 3rd road clip floor after structural strength reaches is bored a hole and is adopted 300 × 300mm iron plate to be welded and fixed, and increase the cast-in-situ concrete together with channel-section steel or H profile steel of structure reversed beam on structure limit, consolidate the stability of shaped steel and bear cantilevered structure transmission load, bottom increases channel-section steel or shaped steel diagonal brace and middle part and increases oblique pull channel-section steel or shaped steel, form steel work tripod, time crossbeam channel-section steel or H profile steel is set up at a certain distance according to structural load again on steel tripod, after construction after the degree of disturbing of deadweight generation is static, finally on secondary crossbeam channel-section steel or shaped steel, set up common steel tube fastener type bracing frame, comprehensive load-bearing, bear top to encorbelment all loads of beam slab, structure reversed beam is removed after construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110088550.XA CN102733606B (en) | 2011-04-08 | 2011-04-08 | The construction method of High Large Cantilever structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110088550.XA CN102733606B (en) | 2011-04-08 | 2011-04-08 | The construction method of High Large Cantilever structure |
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| CN102733606A CN102733606A (en) | 2012-10-17 |
| CN102733606B true CN102733606B (en) | 2015-09-30 |
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| CN201110088550.XA Active CN102733606B (en) | 2011-04-08 | 2011-04-08 | The construction method of High Large Cantilever structure |
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| CN103306479A (en) * | 2013-07-09 | 2013-09-18 | 中国中铁航空港建设集团有限公司海南分公司 | Long-length overhang trusswork high form hanger system |
| CN103388310A (en) * | 2013-08-09 | 2013-11-13 | 北京市公路桥梁建设集团有限公司 | Single-point fixing adjustable cantilever tripod |
| CN103669845B (en) * | 2013-12-26 | 2015-11-25 | 常州第一建筑集团有限公司 | High-altitude long-span overhung cornice formwork bracing system and construction method thereof |
| CN103993735A (en) * | 2014-06-06 | 2014-08-20 | 山东义泰建设工程有限公司 | Support system of roof inclined beam and slab cantilever structure and construction method of support system |
| CN104989097A (en) * | 2015-05-27 | 2015-10-21 | 晟通科技集团有限公司 | Reverse beam overhanging template device |
| CN105019639B (en) * | 2015-05-28 | 2017-07-14 | 河南国基建设集团有限公司 | Overhead cantilever formwork and its construction method |
| CN104989092B (en) * | 2015-05-28 | 2017-03-01 | 杭州江润科技有限公司 | A kind of construction method of high-altitude overhanging superposed type steel truss bearing platform |
| CN105626138B (en) * | 2015-12-31 | 2017-09-29 | 中国建筑第八工程局有限公司 | A kind of precipice passway for escaping structure and its construction method |
| CN105971110A (en) * | 2016-05-30 | 2016-09-28 | 中冶东北建设（沈阳）工程技术有限公司 | Construction method for fire control corridor steel structure supporting system |
| CN106337555A (en) * | 2016-09-26 | 2017-01-18 | 山东金城建设有限公司 | Method for constructing triangular steel support for cantilever structure of outer wall of building |
| CN107165281A (en) * | 2017-06-20 | 2017-09-15 | 中国华西企业有限公司 | A kind of high-altitude long-span overhung steel platform mould bases construction |
| CN110259147B (en) * | 2019-07-02 | 2024-05-10 | 中冶天工集团有限公司 | Auxiliary mounting device and method for platform beams of narrow-space opposite overhanging platform |
| CN110318460B (en) * | 2019-07-23 | 2021-02-09 | 中冶建工集团有限公司 | Construction method of inverted-step-shaped special-shaped steel structure |
| CN111236640A (en) * | 2020-03-26 | 2020-06-05 | 张延年 | Structure of encorbelmenting is shared with outer scaffold to high altitude formwork support |
| CN111350338A (en) * | 2020-04-14 | 2020-06-30 | 中国建筑第四工程局有限公司 | Construction steel platform for super-long overhanging structure of high-rise building |
| CN111424967A (en) * | 2020-04-27 | 2020-07-17 | 五冶集团上海有限公司 | Construction method of high-altitude ring beam cantilever structure |
| CN115182526A (en) * | 2022-08-11 | 2022-10-14 | 中国建筑第七工程局有限公司 | High-altitude overhanging stair structure and construction method thereof |
| CN115928883B (en) * | 2022-11-29 | 2024-02-13 | 北京城建六建设集团有限公司 | Structure structure for preventing displacement of continuous overhanging layer of building and construction method |
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| JP2853570B2 (en) * | 1994-05-25 | 1999-02-03 | 鹿島建設株式会社 | Construction method of building with overhang |
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| CN102733606A (en) | 2012-10-17 |
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Inventor after: Sun Xiaoyang Inventor after: Li Bin Inventor after: Yan Weidong Inventor after: Chen Si Inventor before: Sun Xiaoyang Inventor before: Yan Weidong Inventor before: Chen Si |
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