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Outer cantilever large-span arc-shaped variable cross-section box type steel beam structure with intersected inner rings and forming method

A technology of box-shaped steel beams and variable cross-sections, which is applied to girders, truss structures, joists, etc., can solve problems such as complex component composition, complex mechanical performance of the system, and complex node connection structure, and achieve high overall system rigidity, Clear force transmission and light weight effect

Active Publication Date: 2021-07-13
ZHEJIANG UNIV CITY COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In addition, the large-span box-shaped steel girder structure with external cantilever has problems such as complex node connection structure, complex component composition, complex mechanical performance of the system, and the seismic resistance and comfort of the large-span large-cantilever structure. Reasonable and effective external cantilever large-span arc The structural form design and composition scheme of the deformed cross-section steel beam is also an important factor to ensure its bearing capacity and normal use

Method used

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  • Outer cantilever large-span arc-shaped variable cross-section box type steel beam structure with intersected inner rings and forming method
  • Outer cantilever large-span arc-shaped variable cross-section box type steel beam structure with intersected inner rings and forming method
  • Outer cantilever large-span arc-shaped variable cross-section box type steel beam structure with intersected inner rings and forming method

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Effect test

Embodiment 1

[0054] Such as Figures 1a-1f as well as Figure 2-Figure 4 As shown, the outer cantilevered large-span arc-shaped variable-section box-shaped steel girder structure of the present invention includes a combination of radial and circular box-shaped main steel beams, a vertical support structure, inter-column and boundary steel beams, secondary beams and Horizontal bracing, internal orthogonal small steel beams. The radial circumferential box-type main steel girder combination ( Figure 1b ) is the vertical main load-bearing core structure, with the outer cantilevered large-span arc-shaped variable-section radial box-shaped main steel beams arranged radially as the main force-bearing member, and through an inner ring box-shaped main steel beam with equal cross-section The beams are set at the intersection of the inner ring to form the overall system of the architectural shape of the curved surface of the facade; the vertical support structure ( Figure 1c ) is a horizontal lat...

Embodiment 2

[0073] Such as Figure 7 As shown, the specific component composition process of the outer cantilever large-span arc-shaped variable-section box-shaped steel beam structure where the inner ring intersects is as follows:

[0074] S1. The arc-shaped large-span section 2 of the radial box-shaped main steel girder and the variable-section cantilever section 3 of the radial box-shaped main The pick area extends to the cantilever end 4 of the radial box-shaped main steel girder; it is centered on the plane center positioning point 21 of the structural system, and is arranged in a circular rotating array to form a multi-radial radial box-shaped main steel girder structure ;

[0075] S2. The inner ring box-shaped main steel girder 5 is located in the middle of the plane, that is, the inner side of the radial box-shaped main steel girder, and connects the inner ring rigid connection end 1 of the radial box-shaped main steel girder, and forms a multi-diameter joint with step S1. The b...

Embodiment 3

[0083] The present invention also provides a large-span, externally cantilevered complex variable-section box-shaped steel girder structure with an outer cantilevered large-span arc-shaped variable-section box-shaped steel girder structure with a radial radial facade arc-shaped curved surface architectural shape where the inner rings meet For beam roof structural system design and application in load bearing, the large-span and external overhangs respectively refer to large-space roof building structures with a maximum span of not less than 40 meters and a maximum overhang of not less than 15 meters.

[0084] Compared with the deficiencies of the prior art, the present invention provides a cantilevered large-span arc-shaped variable-section box-shaped steel girder structure where the inner ring intersects and is based on the combination of the radial ring box-shaped main steel beam and the vertical support structure. The central support frame strengthens the overall lateral and...

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Abstract

The invention relates to an outer cantilever large-span arc-shaped variable cross-section box type steel beam structure with intersected inner rings. The outer cantilever large-span arc-shaped variable cross-section box type steel beam structure comprises a radial and annular box type main steel beam combination, vertical supporting structures, inter-column and boundary steel beams, secondary beams, horizontal supports and internal orthogonal small steel beams; the radial and annular box type main steel beam combination is of a vertical main bearing core structure. The steel beam structure has the beneficial effects that the structural system is reasonable in structure, the design and the bearing of the large-span outer cantilever complex variable cross-section box type steel beam roof structural system of a radial facade arc-shaped curved surface building model can be realized, and the functional advantages of high lateral resistance and torsional rigidity, high bearing performance and large span and large cantilever of the outer cantilever large-span box type steel beam system are fully exerted; on the premise that the self weight is reduced and the bearing performance is controlled as much as possible, large-span outer cantilever building modeling and functions are realized; and reasonability and effectiveness of an overall structural system are further guaranteed conveniently through index control such as overall rigidity (deformation value control) and bearing capacity (stress ratio control).

Description

technical field [0001] The invention belongs to the technical field of structural engineering, and in particular relates to an outer cantilevered large-span arc-shaped variable-section box-shaped steel girder structure and a construction method where inner rings meet. Large-span and external overhangs refer to large-space roof building structures with a maximum span of no less than 40 meters and a maximum overhang of no less than 15 meters. Background technique [0002] The steel frame structure is a building structure system composed of steel frame columns, rigid steel frame beams and hinged steel secondary beams that can withstand vertical and horizontal loads. It has the advantages of high strength, light weight, and high rigidity. It is widely used in light-weight and prefabricated civil public buildings, factories and residential buildings. [0003] Long-span box-girder structures are an important form of steel frame structures. When the span of the building space rea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B7/00E04C3/04E04C3/32
CPCE04B7/00E04C3/04E04C3/32
Inventor 王震翟立祥瞿浩川丁智汪儒灏庞崇安
Owner ZHEJIANG UNIV CITY COLLEGE