CN106337564A - Unstayed construction method for high-altitude oversized cantilever steel structure - Google Patents

Unstayed construction method for high-altitude oversized cantilever steel structure Download PDF

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Publication number
CN106337564A
CN106337564A CN201610760440.6A CN201610760440A CN106337564A CN 106337564 A CN106337564 A CN 106337564A CN 201610760440 A CN201610760440 A CN 201610760440A CN 106337564 A CN106337564 A CN 106337564A
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CN
China
Prior art keywords
construction
cantilever
steel
altitude
truss
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
CN201610760440.6A
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Chinese (zh)
Inventor
唐启旭
刘明路
王馥琴
王军
常华
秦超
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.)
Shanghai Ershiye Construction Co Ltd
Original Assignee
Shanghai Ershiye Construction Co Ltd
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 Shanghai Ershiye Construction Co Ltd filed Critical Shanghai Ershiye Construction Co Ltd
Priority to CN201610760440.6A priority Critical patent/CN106337564A/en
Publication of CN106337564A publication Critical patent/CN106337564A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19Three-dimensional framework structures
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14Conveying or assembling building elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19Three-dimensional framework structures
    • E04B2001/1978Frameworks assembled from preformed subframes, e.g. pyramids

Abstract

The invention relates to the field of steel structure construction, and in particular to an unstayed construction method for a high-altitude oversized cantilever steel structure. The unstayed construction method is characterized by comprising the following steps: welding procedure qualification; segmentation making: segmenting a truss, and splicing end truss segmentations into a triangular combination unit; field installation: preferentially hoisting a combination unit formed by a cantilever beam and diagonal braces, forming a triangular stable body with existing steel columns of the high-altitude oversized cantilever steel structure, then installing planar inner steel beams, installing upright columns, upper-layer frame beams and secondary beams on the cantilever beam, and sequentially installing and extending the truss in a cantilever segmentation. The invention adopts a steel cable tensioning control technology and a triangular stable unit segmenting method; a cantilever truss structure is optimally decomposed into columns, beams and single supporting bodies, and planar installation and stereoscopic installation are hierarchically and regionally carried out; by utilizing the method, cantilever steel structure construction is not required to erect an operation platform in high altitude, so that the cost for project manufacturing, installing, removing and the like is saved, the speed and the safety of the construction are greatly increased, and successful implementation of the whole construction scheme is ensured.

Description

High-altitude super large overhanging steel structure support free construction method
Technical field
The present invention relates to field of steel structure construction, a kind of specifically high-altitude super large overhanging steel structure support free construction method.
Background technology
Under the promotion of Chinese city economic development, more high-rise buildings are being built in each big city, and are in a large number Reveal large span, the construction featuress such as irregular, special formed.In numerous two tall buildings design, high building is frequently with stiffness coagulation Soil structure, adopts Steel corridor to connect in the air.Traditional construction technology sets up rack construction platform for floor, and this technology needs Meet that floor concrete strength reaches the 100% of design strength grade, two tall buildings synchronous construction, support has enough intensity, just Degree, stability etc. require, and are difficult to meet the rate request of current production and construction.
Content of the invention
It is an object of the invention to provide a kind of high-altitude super large cantilever frame structure support free construction method, it is overcoming tradition The requirement of construction technology execution conditions is many, high, can also reduce construction cost while the drawback such as construction period length.
In order to achieve the above object, the present invention is achieved in that
A kind of high-altitude super large cantilever frame structure support free construction method, comprises the following steps:
Step 1, qualification of welding procedure, formulate node welding and are evaluated;
Step 2, making segmentation, carry out equitable subsection, end truss sections are assembled into cam combination unit to truss;
Step 3, in-site installation, the assembled unit that preferential lifting Cantilever Beams are formed with diagonal brace, existing steel column forms triangle with structure Liptinite, then girder steel in mounting plane, Cantilever Beams install column and upper strata Vierendeel girder, secondary beam, and installs successively, extend Encorbelment a section truss;Wherein, using by using the node absolute altitude of tensioning cable technical controlling installation component and displacement.
Described high-altitude super large cantilever frame structure support free construction method, also includes using having between step 2 and step 3 The step that limit unit realizes whole process simulation simulation.
The present invention adopts tensioning cable control technology and stable triangular unit method of fractionation (to install for structure cantilever frame Big, the unstable feature of deflection in journey it is proposed that end cam combination unit, after being hung to designed elevation, and installs steel column Form stable triangular system after closing up welding), cantilever frame structure optimization is resolved into post, beam, supported monomer, layering and zoning is entered Row plane and three-dimensional are installed, and using the method, overhanging steel structure construction does not need to set up operating platform in high-altitude, saves The expenses such as project fabrication and installation, dismounting, and substantially increase the speed of construction and safety it is ensured that whole arrangement and method for construction smooth Implement.
Brief description
Fig. 1 is the precedence diagram of this construction method.
Fig. 2 is the sequence of construction figure of this construction method.
Fig. 3 is the continuity of Fig. 2.
Specific embodiment
Further illustrate the present invention below by way of specific embodiment.
As shown in Figure 1, Figure 2 and Figure 3, a kind of high-altitude super large cantilever frame structure support free construction method, walks including following Rapid:
Step 201: first encorbelment across first floor chord member 1 and diagonal web member 2 composition spider liptinite install, non-with cable wire 3 tensioning Encorbelment newel post and endpoint node;
Step 202: the first across first layer plane girder construction 2 of encorbelmenting is installed, constitutes local stability structure;
Step 203: first encorbelments installs across two layers of triangular support configurations 5, simultaneous tension second segment cable wire 6;
Step 204: first encorbelments installs across two layer plane girder constructions 7;
Step 205: the second encorbelment across first floor triangular bracket supporting structure is installed, and that is, the spider of chord member 8 and diagonal web member 9 composition is stable Body is installed;
Step 206: the first encorbelment section two segmented column, girder construction 10 is installed and a second section first layer plane beam 11 of encorbelmenting is installed;
Step 207: the first section three layer plane beam 12 of encorbelmenting is installed and second encorbelmented that section is first install, second encorbelments across two by segmented column beam 13 Layer plane girder construction 14 is installed;
Step 208: a section truss beaer structure construction of encorbelmenting finishes;
Step 209: the 3rd segmented column, beam structure construction;
Step 210: be sequentially completed all cantilevered structures and install.
It is seen that, using high-altitude super large overhanging steel structure support free construction method, construction ancillary method will be greatly reduced, Improve work efficiency, construction period shortens relatively, solve high-altitude overhanging and deformation, stability problem rambunctious are installed, be whole Individual installation process is smoothed out providing scientific basis.
The present invention carries out overall process using computer and carries out dynamic analog trace analysises, according to the analog data of computer, All abnormal conditions in the encorbelment data of construction overall process of steel construction, and the up-to-standard rate of whole steel structure assembling reaches 100%, Indices are satisfied by design requirement.

Claims (2)

1. a kind of high-altitude super large cantilever frame structure support free construction method, is characterized in that: comprise the following steps:
Step 1, qualification of welding procedure, formulate node welding and are evaluated;
Step 2, making segmentation, carry out equitable subsection, end truss sections are assembled into cam combination unit to truss;
Step 3, in-site installation, the assembled unit that preferential lifting Cantilever Beams are formed with diagonal brace, existing steel column forms triangle with structure Liptinite, then girder steel in mounting plane, Cantilever Beams install column and upper strata Vierendeel girder, secondary beam, and installs successively, extend Encorbelment a section truss;Wherein, using by using the node absolute altitude of tensioning cable technical controlling installation component and displacement.
2. high-altitude according to claim 1 super large cantilever frame structure support free construction method, is characterized in that, step 2 and The step that whole process simulation simulation is realized using finite element is also included between step 3.
CN201610760440.6A 2016-08-30 2016-08-30 Unstayed construction method for high-altitude oversized cantilever steel structure Pending CN106337564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610760440.6A CN106337564A (en) 2016-08-30 2016-08-30 Unstayed construction method for high-altitude oversized cantilever steel structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610760440.6A CN106337564A (en) 2016-08-30 2016-08-30 Unstayed construction method for high-altitude oversized cantilever steel structure

Publications (1)

Publication Number Publication Date
CN106337564A true CN106337564A (en) 2017-01-18

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ID=57823318

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Application Number Title Priority Date Filing Date
CN201610760440.6A Pending CN106337564A (en) 2016-08-30 2016-08-30 Unstayed construction method for high-altitude oversized cantilever steel structure

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CN (1) CN106337564A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108571118A (en) * 2018-04-13 2018-09-25 国核电力规划设计研究院有限公司 Accentric support energy consumption girder construction
CN109881890A (en) * 2019-02-21 2019-06-14 深圳市建筑设计研究总院有限公司 A kind of more corridor construction methods of super high-rise building

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0654571A1 (en) * 1993-05-14 1995-05-24 Mitsubishi Jukogyo Kabushiki Kaisha Zone module construction method of steel structure construction
CN101787732A (en) * 2010-02-11 2010-07-28 清华大学 Cable-stayed multi-layer framework structure and construction control method thereof
CN102839747A (en) * 2012-09-24 2012-12-26 中国建筑第八工程局有限公司 Construction method for steel structure truss of super high-rise special structure
CN104652828A (en) * 2014-12-08 2015-05-27 永升建设集团有限公司 Heavy-duty steel structure cast-steel joint high-altitude bulk construction method
CN105625732A (en) * 2015-12-30 2016-06-01 常州第一建筑集团有限公司 Supporting-free construction method of ultrahigh overhung steel-structure truss

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0654571A1 (en) * 1993-05-14 1995-05-24 Mitsubishi Jukogyo Kabushiki Kaisha Zone module construction method of steel structure construction
CN101787732A (en) * 2010-02-11 2010-07-28 清华大学 Cable-stayed multi-layer framework structure and construction control method thereof
CN102839747A (en) * 2012-09-24 2012-12-26 中国建筑第八工程局有限公司 Construction method for steel structure truss of super high-rise special structure
CN104652828A (en) * 2014-12-08 2015-05-27 永升建设集团有限公司 Heavy-duty steel structure cast-steel joint high-altitude bulk construction method
CN105625732A (en) * 2015-12-30 2016-06-01 常州第一建筑集团有限公司 Supporting-free construction method of ultrahigh overhung steel-structure truss

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108571118A (en) * 2018-04-13 2018-09-25 国核电力规划设计研究院有限公司 Accentric support energy consumption girder construction
CN109881890A (en) * 2019-02-21 2019-06-14 深圳市建筑设计研究总院有限公司 A kind of more corridor construction methods of super high-rise building

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Application publication date: 20170118