CN115162596B - Construction method of steel truss of round dome roof - Google Patents

Construction method of steel truss of round dome roof Download PDF

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Publication number
CN115162596B
CN115162596B CN202210999105.7A CN202210999105A CN115162596B CN 115162596 B CN115162596 B CN 115162596B CN 202210999105 A CN202210999105 A CN 202210999105A CN 115162596 B CN115162596 B CN 115162596B
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China
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truss
main
inner ring
core tube
trusses
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CN115162596A (en
Inventor
高正勇
陈凡
陈添娇
罗磊
刘志松
匡明珑
沈建军
卓臣
张望
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China Construction Second Engineering Bureau Co Ltd
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China Construction Second Engineering Bureau Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00Roofs; Roof construction with regard to insulation
    • E04B7/08Vaulted roofs
    • 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
    • E04B1/34Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
    • 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

Abstract

The invention relates to the technical field of building construction, in particular to a construction method of a steel truss of a round dome roof, which is applied to a steel truss structure of the round dome roof and comprises the following steps: the concrete building main body is a core tube inner ring truss arranged at the top of the concrete building main body, and the main truss is radially distributed by taking the core tube inner ring truss as the center, and secondary trusses are connected between adjacent main trusses; the cantilever steel beam is arranged below the main truss, the outer end of the cantilever steel beam is connected with the outer end of the main truss through a suspender, and the inner end of the cantilever steel beam is fixed with the concrete building main body; the construction method comprises the following steps: s1, hoisting an inner ring truss of a core tube; s2, hoisting a main truss; s3, mounting a suspender; s4, mounting overhanging steel beams; s5, installing an annular box girder. The circular dome roof steel truss with the novel structure and the construction method thereof not only effectively improve the construction efficiency, but also have positive significance in guaranteeing the construction quality, saving the cost investment, innovating the construction means and the like.

Description

Construction method of steel truss of round dome roof
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method of a steel truss of a round dome roof.
Background
In recent years, the development of the building industry in China is rapid, the building modeling is more and more complex, the structural form is more and more novel, the application of the steel structure in the building is more and more frequent, particularly, the built large-scale building with different forms almost adopts various forms of steel structures, and the dome structure of the steel structure gradually presents a plurality of novel complex forms due to the structural requirement.
Disclosure of Invention
Aiming at the problems, the embodiment of the invention provides a construction method of a steel truss of a round dome roof.
In one aspect of the present invention, a construction method of a steel truss for a circular dome roof is provided, which is applied to a steel truss structure for a circular dome roof, wherein the steel truss structure for a circular dome roof includes: the concrete building main body is a core tube inner ring truss arranged at the top of the concrete building main body, and main trusses which are radially distributed by taking the core tube inner ring truss as a center and are fixed on the concrete building main body are connected with secondary trusses between adjacent main trusses; the cantilever steel beam is arranged below the main truss, the outer end of the cantilever steel beam is connected with the outer end of the main truss through a suspender, and the inner end of the cantilever steel beam is fixed with an embedded part on the side surface of the concrete building main body; an annular box beam is connected between the lower ends of the suspenders; the construction method comprises the following steps:
s1, hoisting an inner ring truss of a core tube
Four H-shaped steel beams are welded between the inner chord member and the outer chord member of the inner ring truss of the core tube at intervals, diagonal bracing is welded between the H-shaped steel beams and the lower chord member of the inner ring truss of the core tube, and the inner ring truss of the core tube is hoisted to the center of the top of the concrete building main body after welding is finished and is fixedly installed;
s2, hoisting the main truss
S2-1, lifting a main truss, adjusting the extension line of the end part of the main truss to intersect with the center of the inner ring truss of the core tube in real time, and positioning and fixing the upper and lower bridge openings of the main truss after being matched with the upper and lower chords of the inner ring truss of the core tube; hoisting the main truss on the opposite side of the fixed main truss and adjusting and fixing;
s2-2, hoisting another adjacent group of main trusses after installing the opposite group of main trusses, and installing a secondary truss between the two adjacent groups of installed main trusses;
s2-3, repeating the operation process of the S2-2 until the installation of all the main trusses and the secondary trusses is completed;
s3, hanging rod installation
A suspender is arranged at the outer end of each main truss;
s4, cantilever steel beam installation
Slowly hoisting the cantilever steel beams from between two adjacent main trusses until the cantilever steel beams reach the designed elevation, fixing one end of the cantilever steel beams with an embedded part on the concrete main body, connecting the other end of the cantilever steel beams with a suspender by adopting a pin roll, and locking after correcting the levelness of the cantilever steel beams;
s5, mounting an annular box girder
And hoisting the arc round edge box girder forming the annular box girder between the two suspenders in sequence and fixing the arc round edge box girder with the suspenders.
Compared with the prior art, the invention has the beneficial effects that: the circular dome roof steel truss with the novel structure and the construction method thereof not only effectively improve the construction efficiency, but also have positive significance in guaranteeing the construction quality, saving the cost investment, innovating the construction means and the like.
Optionally, the method further comprises: the inner ring truss of the core tube is divided into two parts which are mirror symmetry by adopting a split structure, and the two parts are respectively transported to a construction site.
Optionally, a hemispherical support is installed on the main truss, the main truss is installed on the concrete main body, an elastic support is arranged on the main truss, and the hemispherical support and a transition steel bar on the elastic support are welded to fix the main truss and the concrete main body.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of a construction flow provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an inner ring truss of a core tube according to an embodiment of the present invention;
FIG. 3 is a schematic view of a main truss according to an embodiment of the present invention;
FIG. 4 is a schematic view of hoisting the inner ring truss of the core tube;
fig. 5 is a schematic view of a main truss lifting.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent. The exemplary embodiments of the present invention and the descriptions thereof are used herein to explain the present invention, but are not intended to limit the invention.
Referring to fig. 1 to 5, the construction method of a circular dome roof steel truss provided by the embodiment of the invention is applied to a circular dome roof steel truss structure, wherein the circular dome roof steel truss structure comprises: the concrete building main body is a core tube inner ring truss arranged at the top of the concrete building main body, and main trusses which are radially distributed by taking the core tube inner ring truss as a center and are fixed on the concrete building main body are connected with secondary trusses between adjacent main trusses; the cantilever steel beam is arranged below the main truss, the outer end of the cantilever steel beam is connected with the outer end of the main truss through a suspender, and the inner end of the cantilever steel beam is fixed with an embedded part on the side surface of the concrete building main body; an annular box beam is connected between the lower ends of the suspenders; the construction method comprises the following steps:
s1, hoisting an inner ring truss of a core tube
Four H-shaped steel beams are welded between the inner chord member and the outer chord member of the inner ring truss of the core tube at intervals, diagonal bracing is welded between the H-shaped steel beams and the lower chord member of the inner ring truss of the core tube, and the inner ring truss of the core tube is hoisted to the center of the top of the concrete building main body after welding is finished and is fixedly installed; the four H-shaped steel beams can transfer the dead weight of the inner ring in the construction process to the main truss on the main structure support, and the main truss is removed after the installation is completed;
s2, hoisting the main truss
S2-1, lifting a main truss, adjusting the extension line of the end part of the main truss to intersect with the center of the inner ring truss of the core tube in real time, and positioning and fixing the upper and lower bridge openings of the main truss after being matched with the upper and lower chords of the inner ring truss of the core tube; hoisting the main truss on the opposite side of the fixed main truss and adjusting and fixing; the main truss is symmetrically arranged, so that eccentric stress of the inner ring truss of the core tube can be avoided;
s2-2, hoisting another adjacent group of main trusses after installing the opposite group of main trusses, and installing a secondary truss between the two adjacent groups of installed main trusses;
s2-3, repeating the operation process of the S2-2 until the installation of all the main trusses and the secondary trusses is completed;
s3, hanging rod installation
A suspender is arranged at the outer end of each main truss;
s4, cantilever steel beam installation
Slowly hoisting the cantilever steel beams from between two adjacent main trusses until the cantilever steel beams reach the designed elevation, fixing one end of the cantilever steel beams with an embedded part on the concrete main body, connecting the other end of the cantilever steel beams with a suspender by adopting a pin roll, and locking after correcting the levelness of the cantilever steel beams;
s5, mounting an annular box girder
And hoisting the arc round edge box girder forming the annular box girder between the two suspenders in sequence and fixing the arc round edge box girder with the suspenders.
In an implementation, the method further comprises: the inner ring truss of the core tube is divided into two parts which are mirror symmetry by adopting a split structure, the two parts are respectively transported to a construction site, and the split structure is convenient to transport.
And the main truss is provided with a hemispherical support, the concrete main body is provided with an elastic support arranged on the main truss, and the hemispherical support and a transition steel bar on the elastic support are welded to fix the main truss and the concrete main body.
The circular dome roof steel truss with the novel structure and the construction method thereof provided by the invention not only effectively improve the construction efficiency, but also have positive significance in guaranteeing the construction quality, saving the cost investment, innovating the construction means and the like.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims (3)

1. The construction method of the circular dome roof steel truss is characterized by being applied to a circular dome roof steel truss structure, wherein the circular dome roof steel truss structure comprises the following steps: the concrete building main body is a core tube inner ring truss arranged at the top of the concrete building main body, and main trusses which are radially distributed by taking the core tube inner ring truss as a center and are fixed on the concrete building main body are connected with secondary trusses between adjacent main trusses; the cantilever steel beam is arranged below the main truss, the outer end of the cantilever steel beam is connected with the outer end of the main truss through a suspender, and the inner end of the cantilever steel beam is fixed with an embedded part on the side surface of the concrete building main body; an annular box beam is connected between the lower ends of the suspenders; the construction method comprises the following steps:
s1, hoisting an inner ring truss of a core tube
Four H-shaped steel beams are welded between the inner chord member and the outer chord member of the inner ring truss of the core tube at intervals, diagonal bracing is welded between the H-shaped steel beams and the lower chord member of the inner ring truss of the core tube, and the inner ring truss of the core tube is hoisted to the center of the top of the concrete building main body after welding is finished and is fixedly installed;
s2, hoisting the main truss
S2-1, lifting a main truss, adjusting the extension line of the end part of the main truss to intersect with the center of the inner ring truss of the core tube in real time, and positioning and fixing the upper and lower bridge openings of the main truss after being matched with the upper and lower chords of the inner ring truss of the core tube; hoisting the main truss on the opposite side of the fixed main truss and adjusting and fixing;
s2-2, hoisting another adjacent group of main trusses after installing the opposite group of main trusses, and installing a secondary truss between the two adjacent groups of installed main trusses;
s2-3, repeating the operation process of the S2-2 until the installation of all the main trusses and the secondary trusses is completed;
s3, hanging rod installation
A suspender is arranged at the outer end of each main truss;
s4, cantilever steel beam installation
Slowly hoisting the cantilever steel beams from between two adjacent main trusses until the cantilever steel beams reach the designed elevation, fixing one end of the cantilever steel beams with an embedded part on the concrete main body, connecting the other end of the cantilever steel beams with a suspender by adopting a pin roll, and locking after correcting the levelness of the cantilever steel beams;
s5, mounting an annular box girder
And hoisting the arc round edge box girder forming the annular box girder between the two suspenders in sequence and fixing the arc round edge box girder with the suspenders.
2. The method of constructing a steel truss for a circular dome roof of claim 1, further comprising: the inner ring truss of the core tube is divided into two parts which are mirror symmetry by adopting a split structure, and the two parts are respectively transported to a construction site.
3. The construction method of the steel truss of the round dome roof according to claim 1, wherein the hemispherical support is arranged on the main truss, the elastic support is arranged on the main truss on the concrete main body, and the hemispherical support and the transition steel bar on the elastic support are welded to fix the main truss and the concrete main body.
CN202210999105.7A 2022-08-19 2022-08-19 Construction method of steel truss of round dome roof Active CN115162596B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115853125B (en) * 2023-02-24 2023-05-02 山西建筑工程集团有限公司 Circular cone-shaped dome steel structure with upper opening and installation method thereof

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5371983A (en) * 1992-04-08 1994-12-13 Mamoru Kawaguchi And Maeda Corporation Dome shaped roof structure
JPH09111943A (en) * 1995-10-19 1997-04-28 Taisei Corp Building having domed roof
JPH09268692A (en) * 1996-03-28 1997-10-14 Shimizu Corp Dome roof structure
CN111101632A (en) * 2020-01-08 2020-05-05 中国建筑西南设计研究院有限公司 Large-opening inner ring steel truss cable dome structure
CN112343233A (en) * 2020-11-06 2021-02-09 山西五建集团有限公司 Round roof space pipe truss structure and construction method thereof
CN112482577A (en) * 2020-11-18 2021-03-12 陕西建工集团股份有限公司 Large-span space chord supporting wheel spoke type truss structure system and construction method
CN112982669A (en) * 2021-02-09 2021-06-18 清华大学建筑设计研究院有限公司 Eccentric annular large-cantilever prestressed steel structural system and construction method thereof
CN113107131A (en) * 2021-04-19 2021-07-13 浙大城市学院 Inner ring intersected external cantilever large-span arc-shaped variable-cross-section box type steel beam structure and forming method
CN114458053A (en) * 2022-02-18 2022-05-10 中铁建设集团有限公司 Temporary support structure for steel structure building and construction method
CN217150619U (en) * 2022-04-21 2022-08-09 中建二局安装工程有限公司 Annular steel structure mounting structure

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5371983A (en) * 1992-04-08 1994-12-13 Mamoru Kawaguchi And Maeda Corporation Dome shaped roof structure
JPH09111943A (en) * 1995-10-19 1997-04-28 Taisei Corp Building having domed roof
JPH09268692A (en) * 1996-03-28 1997-10-14 Shimizu Corp Dome roof structure
CN111101632A (en) * 2020-01-08 2020-05-05 中国建筑西南设计研究院有限公司 Large-opening inner ring steel truss cable dome structure
CN112343233A (en) * 2020-11-06 2021-02-09 山西五建集团有限公司 Round roof space pipe truss structure and construction method thereof
CN112482577A (en) * 2020-11-18 2021-03-12 陕西建工集团股份有限公司 Large-span space chord supporting wheel spoke type truss structure system and construction method
CN112982669A (en) * 2021-02-09 2021-06-18 清华大学建筑设计研究院有限公司 Eccentric annular large-cantilever prestressed steel structural system and construction method thereof
CN113107131A (en) * 2021-04-19 2021-07-13 浙大城市学院 Inner ring intersected external cantilever large-span arc-shaped variable-cross-section box type steel beam structure and forming method
CN114458053A (en) * 2022-02-18 2022-05-10 中铁建设集团有限公司 Temporary support structure for steel structure building and construction method
CN217150619U (en) * 2022-04-21 2022-08-09 中建二局安装工程有限公司 Annular steel structure mounting structure

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