CN114108811A - Non-support mounting method for super high-rise transfer truss - Google Patents
Non-support mounting method for super high-rise transfer truss Download PDFInfo
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- CN114108811A CN114108811A CN202111442773.1A CN202111442773A CN114108811A CN 114108811 A CN114108811 A CN 114108811A CN 202111442773 A CN202111442773 A CN 202111442773A CN 114108811 A CN114108811 A CN 114108811A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 64
- 239000010959 steel Substances 0.000 claims abstract description 64
- 238000009434 installation Methods 0.000 claims abstract description 33
- 238000006243 chemical reaction Methods 0.000 claims abstract description 29
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims description 23
- 238000010276 construction Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B2001/1993—Details of framework supporting structure, e.g. posts or walls
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a method for installing a super high-rise transfer truss without a support, which comprises the following steps: s1, mounting steel columns on two sides; s2, arranging a balance weight platform at the outer sides of the steel columns at the two sides, wherein the outer sides are the sides of the steel columns which are deviated from each other. S3, erecting conversion trusses on the inner sides of the steel columns on the two sides by using cantilevers, and hoisting counterweights to the counterweight platform in the erecting process until the conversion trusses on the steel columns on the two sides are folded; s4, removing the counterweight and the counterweight platform. The invention enables the conversion truss to be suitable for installation under complex installation conditions, and has certain safety.
Description
Technical Field
The invention relates to a truss installation method, in particular to a non-support installation method of a super high-rise transfer truss.
Background
The steel structure conversion truss is a novel conversion structure, and the structure has the advantages of uniform stress, very good anti-seismic performance, large steel strength, lighter weight, higher construction speed, economy, practicality, environmental protection and the like, and can meet the requirement of larger space. The steel structure conversion truss is widely applied to some modern large-scale building engineering.
In the prior art, the conversion truss is usually installed in situ at high altitude, namely a temporary support structure is erected below the truss, the conversion truss is hoisted in sections by adopting hoisting equipment, and the temporary support structure is removed after hoisting and welding are completed. For the conversion truss of the super high-rise building, a large number of temporary support structures need to be erected, the erecting material cost is high, and the erecting workload is large; the construction method is only suitable for the condition that enough space and conditions exist below the truss for building the temporary support structure, is not suitable for unconditionally building the temporary support structure below the truss, and has limitation.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a non-support installation method of a super high-rise transfer truss, which can be used for erecting the transfer truss under the condition that the space below the transfer truss is insufficient.
The unsupported installation method of the ultra-high-rise transfer truss provided by the embodiment of the invention comprises the following steps:
s1, mounting steel columns on two sides;
s2, arranging a balance weight platform at the outer sides of the steel columns at the two sides, wherein the outer sides are the sides of the steel columns which are deviated from each other.
S3, erecting conversion trusses on the inner sides of the steel columns on the two sides by using cantilevers, and hoisting counterweights to the counterweight platform in the erecting process until the conversion trusses on the steel columns on the two sides are folded;
s4, removing the counterweight and the counterweight platform.
The unsupported installation method of the ultra-high-rise transition truss provided by the embodiment of the invention at least has the following technical effects: the invention adopts the cantilever to set up the conversion truss, thus avoiding setting up a temporary supporting structure under the conversion truss; the conversion truss that the steel column outside set up can produce the bending moment to the steel column, in order to guarantee the security of steel column among the cantilever work progress, hoist the counter weight of corresponding weight on the counter weight platform when the conversion truss of every installation basis weight for the atress of steel column both sides is balanced, ensures that conversion truss and counter weight are to the bending moment on steel column top and be close to zero, reduces the steel column deformation, avoids the steel column to take place the slope. The invention enables the conversion truss to be suitable for installation under complex installation conditions, and has certain safety.
According to some embodiments of the invention, in S3, the counterweight adapted to the transfer truss is hoisted according to the weight of the transfer truss to be erected.
According to some embodiments of the invention, the transfer truss comprises a folding section and a plurality of lower chords, diagonal web members, straight web members, upper chords; when the first lower chord of the conversion truss is erected, hoisting a counterweight matched with the first lower chord on the counterweight platform; when a first inclined web member is erected, a matched counterweight is added on the counterweight platform; when a first straight web member is erected, a counterweight matched with the first straight web member is added on the counterweight platform; when a first upper chord is erected, a matched counterweight is added on the counterweight platform; and in the same way, building the parts of the conversion truss except the folding section.
According to some embodiments of the invention, two ends of the folded section are connected with the transfer truss on the steel column on two sides.
According to some embodiments of the invention, before S1, when the transfer truss is prepared in a factory, the transfer truss is pre-spliced and transported to a construction site after meeting requirements.
According to some embodiments of the invention, the installation positions of the counterweight platform and the transfer truss are located at the same height of the steel column.
According to some embodiments of the present invention, in S2, a supporting frame is assembled by using steel sections on the ground on the site, and then a supporting plate is welded to the supporting frame, and the supporting frame and the supporting plate are assembled to the steel column after the counterweight platform is assembled.
According to some embodiments of the present invention, in S1, the installation position of the steel column is confirmed, the verticality of the steel column is adjusted after the steel column is hoisted in place, and then concrete is poured on the bottom of the steel column.
According to some embodiments of the invention, the steel column is provided with a double-clamping plate, and the counterweight platform is matched with the double-clamping plate and then is fixedly connected to the double-clamping plate through bolts.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a counterweight platform set up in the practice of the unsupported installation method of a super high-rise transition truss of the invention;
fig. 2 is a schematic diagram of the first lower chord being erected in the implementation of the unsupported installation method of the ultra-high-rise transfer truss of the invention;
fig. 3 is a schematic diagram of the first diagonal web member erected during the implementation of the unsupported installation method of the super high-rise transition truss of the invention;
fig. 4 is a schematic view of the first straight web member being erected in the implementation of the unsupported installation method of the super high-rise transition truss of the invention;
fig. 5 is a schematic diagram of the first upper chord being erected in the implementation of the unsupported installation method of the ultra-high-rise transfer truss of the invention;
FIG. 6 is a schematic view of the completion of the erection of a transition truss in the practice of the unsupported installation method of a super high transition truss of the present invention;
FIG. 7 is a schematic illustration of the unsupported mounting method of the super high-rise transition truss after counterweight unloading and counterweight platform removal of the invention;
reference numerals: 101. a steel column; 102. converting the truss; 103. a counterweight platform; 104. balancing weight; 105. a first lower chord; 106. a first diagonal web member; 107. a first straight web member; 108. a first upper chord; 109. double splints.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 7, an embodiment of the present invention provides a method for installing a super high-rise transition truss without support, including:
s1, mounting steel columns 101 on two sides;
and S2, arranging a counterweight platform 103 on the outer sides of the steel columns 101 on the two sides, wherein the outer sides are the sides of the steel columns 101 which are deviated from each other.
S3, erecting a transfer truss 102 on the inner side of the steel column 101 on the two sides by using a cantilever, and hoisting a counterweight 104 on the counterweight platform 103 in the erecting process until the transfer truss 102 on the steel column 101 on the two sides is folded;
s4, removing the counterweight 104 and the counterweight platform 103.
The unsupported installation method of the ultra-high-rise transition truss provided by the embodiment of the invention at least has the following technical effects: according to the invention, the transition truss 102 is erected by adopting the cantilever, so that a temporary support structure is prevented from being erected below the transition truss 102; the conversion truss 102 arranged on the outer side of the steel column 101 can produce bending moment on the steel column 101, in order to guarantee the safety of the steel column 101 in the cantilever construction process, the counterweight 104 with corresponding weight is hoisted on the counterweight platform 103 while the conversion truss 102 with certain weight is installed, so that the stress on two sides of the steel column 101 is balanced, the bending moment sum of the conversion truss 102 and the counterweight 104 on the top end of the steel column 101 is ensured to be close to zero, the deformation of the steel column 101 is reduced, and the steel column 101 is prevented from being inclined. The invention enables the transfer truss 102 to be suitable for installation under complex installation conditions, and has certain safety.
In some embodiments of the present invention, in S3, the counterweight 104 adapted to the transfer truss 102 is hoisted according to the weight of the transfer truss.
In some embodiments of the invention, the transfer truss 102 comprises a closed section and a number of lower chords 105, diagonal web members 106, straight web members 107, upper chords 108; a counterweight 104 matched with the first lower chord 105 of the transfer truss 102 is hoisted on the counterweight platform 103 while the first lower chord 105 is erected; while a first inclined web member 106 is erected, a matched counterweight 104 is added on the counterweight platform 103; while a first straight web member 107 is erected, a counterweight 104 matched with the first straight web member is added on the counterweight platform 103; while setting up the first upper chord 108, add a counterweight 104 that fits on the counterweight platform 103; and in the same way, the parts of the transfer truss 102 except the folding segment are set up. Referring to fig. 2-5, the installation process of transition truss 102 may be visualized.
In some embodiments of the present invention, the two ends of the closed section are connected to the transfer truss 102 on the steel column 101 on both sides.
In some embodiments of the present invention, prior to S1, transition truss 102 is pre-assembled during factory preparation of transition truss 102 and transported to the job site after meeting the requirements. It will be appreciated that pre-splicing can ensure that field splicing of the transition truss 102 can be performed successfully.
In some embodiments of the invention, the installation locations of the counterweight platform 103 and the transfer truss 102 are located at the same height of the steel column 101.
In some embodiments of the present invention, in S2, the supporting frames are assembled by steel sections on the ground on the site, and then the supporting plates are welded on the supporting frames, and the supporting frames and the supporting plates are assembled to the steel columns 101 after forming the counterweight platform 103.
In some embodiments of the present invention, in S1, the installation position of the steel column 101 is confirmed, the verticality of the steel column 101 is adjusted after the steel column 101 is hoisted into place, and then concrete is poured on the bottom of the steel column 101.
In some embodiments of the present invention, a double clamping plate 109 is installed on the steel column 101, and the counterweight platform 103 is fastened to the double clamping plate 109 through bolts after being matched with the double clamping plate 109.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A method for installing a super high-rise transfer truss without support is characterized by comprising the following steps:
s1, mounting steel columns on two sides;
s2, arranging a counterweight platform at the outer sides of the steel columns at the two sides;
s3, erecting conversion trusses on the inner sides of the steel columns on the two sides by using cantilevers, and hoisting counterweights to the counterweight platform in the erecting process until the conversion trusses on the steel columns on the two sides are folded;
s4, removing the counterweight and the counterweight platform.
2. The unsupported installation method of a super high-rise transition truss according to claim 1, wherein: and in S3, hoisting the counterweight matched with the transfer truss according to the weight of the erected transfer truss.
3. The unsupported installation method of a super high-rise transition truss according to claim 2, wherein: the conversion truss comprises a folding section, a plurality of lower chords, oblique web members, straight web members and upper chords; when the first lower chord of the conversion truss is erected, hoisting a counterweight matched with the first lower chord on the counterweight platform; when a first inclined web member is erected, a matched counterweight is added on the counterweight platform; when a first straight web member is erected, a counterweight matched with the first straight web member is added on the counterweight platform; when a first upper chord is erected, a matched counterweight is added on the counterweight platform; and in the same way, building the parts of the conversion truss except the folding section.
4. The unsupported installation method of a super high-rise transition truss according to claim 3, wherein: and connecting the two ends of the closure section with the conversion trusses on the steel columns on the two sides.
5. The unsupported installation method of a super high-rise transition truss according to claim 3, wherein: before S1, when the transfer truss is prepared in a factory, the transfer truss is pre-spliced and conveyed to a construction site after meeting requirements.
6. The unsupported installation method of a super high-rise transition truss according to claim 1, wherein: and the installation positions of the counterweight platform and the conversion truss are positioned at the same height of the steel column.
7. The unsupported installation method of a super high-rise transition truss according to claim 1, wherein: in S2, firstly, the support frames are assembled by using section steel on the ground on the site, then the support plates are welded on the support frames, and the support frames and the support plates form the counterweight platform and then are mounted on the steel columns.
8. The unsupported installation method of a super high-rise transition truss according to claim 1, wherein: in S1, the installation position of the steel column is determined, the verticality of the steel column is adjusted after the steel column is hoisted in place, and then concrete is poured on the bottom of the steel column.
9. The unsupported installation method of a super high-rise transition truss according to claim 1, wherein: and the steel column is provided with double clamping plates, and the counterweight platform is matched with the double clamping plates and then is fixedly connected to the double clamping plates through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111442773.1A CN114108811B (en) | 2021-11-30 | 2021-11-30 | Unsupported installation method of super high-rise conversion truss |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111442773.1A CN114108811B (en) | 2021-11-30 | 2021-11-30 | Unsupported installation method of super high-rise conversion truss |
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| CN114108811B CN114108811B (en) | 2023-07-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439249A (en) * | 2022-04-07 | 2022-05-06 | 中铁建工集团有限公司 | Construction method for lifting large-span triangular truss through air swivel |
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| CN106758868A (en) * | 2016-12-18 | 2017-05-31 | 中铁二十局集团第五工程有限公司 | End bay cast-in-place section construction structure and construction method based on Hanging Basket Yu truss-like nose girder |
| CN107119574A (en) * | 2017-06-27 | 2017-09-01 | 中交第三航务工程局有限公司 | A kind of Cantilever Construction Method of arch rib bridge girder |
| CN111395180A (en) * | 2020-03-27 | 2020-07-10 | 中交二公局东萌工程有限公司 | Continuous rigid frame bridge side span cast-in-place section and closure section suspension type construction method |
| CN111945891A (en) * | 2020-07-25 | 2020-11-17 | 北京城建二建设工程有限公司 | Ring truss high-altitude in-situ splicing construction method |
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2021
- 2021-11-30 CN CN202111442773.1A patent/CN114108811B/en active Active
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| CN101269782A (en) * | 2008-04-29 | 2008-09-24 | 中国中铁股份有限公司 | Wharf crane and construction method |
| CN105421248A (en) * | 2015-12-31 | 2016-03-23 | 中铁二十局集团第一工程有限公司 | Swivel and closure construction method for large-span continuous beam crossing existing station |
| CN105888227A (en) * | 2016-06-16 | 2016-08-24 | 中建七局建筑装饰工程有限公司 | Ultrahigh horn-shaped steel structure exterior facing construction platform, equalizing beam for construction and construction method of ultrahigh horn-shaped steel structure exterior facing construction platform |
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| CN114439249A (en) * | 2022-04-07 | 2022-05-06 | 中铁建工集团有限公司 | Construction method for lifting large-span triangular truss through air swivel |
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Address after: No.1908, Zhongtian Meijing building, No.2009, Pingshan Avenue, Liulian community, Pingshan street, Pingshan District, Shenzhen, Guangdong 518000 Patentee after: China Construction Steel Structure Co.,Ltd. Address before: No.1908, Zhongtian Meijing building, No.2009, Pingshan Avenue, Liulian community, Pingshan street, Pingshan District, Shenzhen, Guangdong 518000 Patentee before: China Construction Steel Engineering Co.,Ltd. |
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